CN2883766Y - Crankshaft structure - Google Patents
Crankshaft structure Download PDFInfo
- Publication number
- CN2883766Y CN2883766Y CN 200620018599 CN200620018599U CN2883766Y CN 2883766 Y CN2883766 Y CN 2883766Y CN 200620018599 CN200620018599 CN 200620018599 CN 200620018599 U CN200620018599 U CN 200620018599U CN 2883766 Y CN2883766 Y CN 2883766Y
- Authority
- CN
- China
- Prior art keywords
- machine oil
- buffer cell
- oil buffer
- end bearing
- crankshaft
- 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
Links
Images
Abstract
The utility model relates to a crankshaft structure, comprising a shaft neck, a crank arm, a crankshaft pin, a side cover and a connecting rod bigger end bearing. The shaft neck is provided with a first oil way. The crank arm is connected with the shaft neck. The crankshaft pin is arranged in the crank arm and is propped with the shaft neck. The crankshaft pin has a first machine oil buffer room, a second machine oil buffer room and the second oil way. The first machine oil buffer room is connected with the second machine oil buffer room; the second oil way is connected with the second machine oil buffer room. The side cover is arranged in the crank arm; the side cover and the crankshaft pin form a space which is connected between the first oil way and the first machine oil. The connecting rod bigger end bearing is arranged in the crank arm; the crankshaft pin is arranged in the connecting rod bigger end bearing; the second oil way is connected between the second machine oil buffer room and the connecting rod bigger end bearing. The utility model can filter tiny foreign bodies in the machine oil, decrease the possibility of the penetration by tiny foreign bodies of the connecting rod bigger end bearing and avoid the damage of the connecting rod bigger end bearing, so that the utility model can extend the service life of the crankshaft structure.
Description
Technical field
The utility model relates to a kind of crankshaft structure, particularly relevant for a kind of crankshaft structure that small foreign matter in the machine oil can be filtered out.
Background technique
See also Fig. 1, the crankshaft structure 1 in the crankcase (not shown) of a locomotive mainly includes an axle journal 11, a crank arm 12, a side cover 13, a crankpin 14, a big end bearing 15, diaxon bearing 16 and two crankshaft main bearings 17.
Still as shown in Figure 1, two crankshaft main bearings 17 are individually fixed among the diaxon bearing 16.Axle journal 11 is sheathed among two crankshaft main bearings 17, and also is formed with an oil circuit 11a in axle journal 11.Crank arm 12 is connected in axle journal 11, and side cover 13 and crankpin 14 all are to be arranged among the crank arm 12, and crankpin 14 is connected to axle journal 11.It should be noted that also to be formed with a space 18 between side cover 13 and crankpin 14, this space 18 is to be communicated with the oil circuit 11a of axle journal 11.In addition, also be formed with a machine oil buffer cell 14a and an oil circuit 14b within crankpin 14, machine oil buffer cell 14a is communicated with space 18, and oil circuit 14b is connected between big end bearing 15 and the machine oil buffer cell 14a.At this, big end bearing 15 is arranged among the crank arm 12, and big end bearing 15 is connected in a connecting rod 20, and crankpin 14 then is to be sheathed among the big end bearing 15.
As mentioned above, when crankshaft structure 1 during according to the direction high speed rotating shown in the arrow A, oil pump (not shown) in the crankcase can be supplied to machine oil O among the axle journal 11 of crankshaft structure 1 simultaneously, and machine oil O then can enter among the space 18 between side cover 13 and the crankpin 14 via oil circuit 11a.At this moment, because crankshaft structure 1 is to carry out high speed rotating, so the heavier impurity (for example iron filings, aluminium bits etc.) of quality can be pushed because of the cause of centrifugal force and be extruded onto 18 peripheries, space among the machine oil O, that is, the centrifugal force that crankshaft structure 1 is produced when carrying out high speed rotating can force the heavier impurity (because of having bigger inertial force) of quality among the machine oil O to be difficult for turning and enter in the machine oil buffer cell 14a and oil circuit 14b of crankpin 14, thereby can reach the effect of filtering machine oil O.Yet, the small foreign matter of lighter weight among the machine oil O (for example iron powder etc.) also not exclusively can be extruded onto 18 peripheries, space so (because of the small foreign matter of lighter weight has less inertial force) is pushed because of centrifugal force is, in other words, the machine oil O that contains small foreign matter still can be in regular turn enters among the big end bearing 15 via the machine oil buffer cell 14a of crankpin 14 and oil circuit 14b, and then can cause big end bearing 15 to damage.
The model utility content
The purpose of this utility model provides a kind of crankshaft structure that small foreign matter in the machine oil can be filtered out.The purpose of this utility model is achieved in that the utility model comprises an axle journal, has one first oil circuit; One crank arm is connected in this axle journal; One crankpin, be arranged among this crank arm, and be connected to this axle journal, wherein, this crankpin has one first machine oil buffer cell, one second machine oil buffer cell and one second oil circuit, this first machine oil buffer cell is connected in the second machine oil buffer cell, and second oil circuit is connected in the second machine oil buffer cell; One side cover is arranged among the crank arm, wherein, is formed with a space between side cover and the crankpin, and this space is connected between first oil circuit and the first machine oil buffer cell; One big end bearing is arranged among the crank arm, and wherein, crankpin is sheathed among the big end bearing, and this second oil circuit is connected between the second machine oil buffer cell and the big end bearing.
Simultaneously, according to the utility model crankshaft structure, the bore of the first machine oil buffer cell is greater than the bore of the second machine oil buffer cell.
In the utility model, the cross section of this first machine oil buffer cell and this second machine oil buffer cell is circular, and the diameter of the first machine oil buffer cell is greater than the diameter of the second machine oil buffer cell again.
In the utility model, crankshaft structure more comprises at least one crankshaft main bearing again, and this neck bush is located among the crankshaft main bearing.
In the utility model, crankshaft structure more comprises at least one bearing support again, and this crankshaft main bearing is fixed among the bearing support.
The utility model has the advantages that: small foreign matter in the machine oil can be filtered out, reduce big end bearing and suffered small allotrylic chance, and avoid big end bearing to damage, and then can prolong the working life of crankshaft structure.
Description of drawings
Fig. 1 shows the generalized section of a known crankshaft structure;
Fig. 2 shows the generalized section of crankshaft structure of the present utility model.
Symbol description
1,100～crankshaft structure
11,110～axle journal
11a～oil circuit
12,120～crank arm
13,140～side cover
14,130～crankpin
14a～machine oil buffer cell
14b～oil circuit
15,150～big end bearing
16,170～bearing support
17,160～crankshaft main bearing
18,135～space
20～connecting rod
111～the first oil circuits
131～the first machine oil buffer cells
132～the second machine oil buffer cells
133～the second oil circuits
O～machine oil
Embodiment
For above-mentioned purpose, the feature and advantage that make the utility model can become apparent, preferred embodiment cited below particularly also cooperates appended graphic elaborating.
Now cooperate graphic explanation preferred embodiment of the present utility model.
See also Fig. 2, the crankshaft structure 100 of present embodiment can be applicable among the crankcase (not shown) of a locomotive, and mainly includes an axle journal 110, a crank arm 120, a crankpin 130, a side cover 140, a big end bearing 150, two crankshaft main bearings 160 and diaxon bearing 170.
Still as shown in Figure 2, diaxon bearing 170 is arranged among the crankcase, and two crankshaft main bearings 160 are individually fixed among the two bent axle bearings 170.
Axle journal 110 is sheathed among two crankshaft main bearings 160, and axle journal 110 has one first oil circuit 111 that forms in wherein.
Crank arm 120 is connected in axle journal 110.Crankpin 130 is arranged among the crank arm 120, and crankpin 130 is connected to axle journal 110.Specifically, within crankpin 130, also be formed with one first machine oil buffer cell 131, one second machine oil buffer cell 132 and one second oil circuit 133, the first machine oil buffer cell 131 is connected in the second machine oil buffer cell 132, and second oil circuit 133 is connected in the second machine oil buffer cell 132.In addition, among present embodiment, the cross section of the first machine oil buffer cell 131 and the second machine oil buffer cell 132 all is circular, and the diameter of the first machine oil buffer cell 131 (bore) is greater than the diameter (bore) of the second machine oil buffer cell 132.
Side cover 140 is arranged among the crank arm 120.Be formed with a space 135 between side cover 140 and the crankpin 130, space 135 is connected between the first machine oil buffer cell 131 of first oil circuit 111 of axle journal 110 and crankpin 130.
Big end bearing 150 also is to be arranged among the crank arm 120, and big end bearing 150 is connected in a connecting rod 20.130 of crankpins are sheathed among the big end bearing 150, and second oil circuit 133 of crankpin 130 is to be connected between the second machine oil buffer cell 132 and the big end bearing 150.
As mentioned above, when crankshaft structure 100 during according to the direction high speed rotating shown in the arrow A, oil pump (not shown) in the crankcase can be supplied to machine oil O among the axle journal 110 of crankshaft structure 100 simultaneously, and machine oil O then can enter among the space 135 between side cover 140 and the crankpin 130 via first oil circuit 111.At this moment, because crankshaft structure 100 is to carry out high speed rotating, so the heavier impurity (for example iron filings, aluminium bits etc.) of quality can be pushed the periphery that is extruded onto space 135 because of the cause of centrifugal force among the machine oil O, that is the centrifugal force that crankshaft structure 100 is produced when carrying out high speed rotating can force the heavier impurity of quality among the machine oil O to be difficult for turning and enter among the crankpin 130.Then, machine oil O can enter among the first machine oil buffer cell 131 of crankpin 130, at this moment, even have the small foreign matter (for example iron powder etc.) of lighter weight among the machine oil O, these small foreign matters can move because of the radial direction of centrifugal action towards the first machine oil buffer cell 131, and on the inwall attached to the first machine oil buffer cell 131, thereby can't enter diameter (bore) than among the little second machine oil buffer cell 132 of the first machine oil buffer cell 131 along with machine oil O.That is to say, small foreign matter among the machine oil O can accumulate on the inwall of the first machine oil buffer cell 131, and peace and quiet machine oil O can be in regular turn enters among the big end bearing 150 via the second machine oil buffer cell 132 and second oil circuit 133, thereby can reduce big end bearing 150 and suffer small allotrylic chance, and avoid big end bearing 150 to damage, and then can prolong the working life of crankshaft structure 100.
Claims (5)
1. crankshaft structure is characterized in that comprising:
One axle journal has one first oil circuit;
One crank arm is connected in this axle journal;
One crankpin, be arranged among this crank arm, and be connected to this axle journal, wherein, this crankpin has one first machine oil buffer cell, one second machine oil buffer cell and one second oil circuit, this first machine oil buffer cell is connected in this second machine oil buffer cell, and this second oil circuit is connected in the second machine oil buffer cell;
One side cover is arranged among the crank arm, wherein, is formed with a space between this side cover and the crankpin, and this space is connected between first oil circuit and the first machine oil buffer cell;
One big end bearing is arranged among the crank arm, and wherein, crankpin is sheathed among the big end bearing, and second oil circuit is connected between the second machine oil buffer cell and the big end bearing.
2. crankshaft structure according to claim 1 is characterized in that the bore of the bore of the first machine oil buffer cell greater than the second machine oil buffer cell.
3. crankshaft structure according to claim 1, the cross section that it is characterized in that the first machine oil buffer cell and the second machine oil buffer cell is circular, and the diameter of this first machine oil buffer cell is greater than the diameter of the second machine oil buffer cell.
4. crankshaft structure according to claim 1 is characterized in that more comprising at least one crankshaft main bearing, and wherein, this neck bush is located among the crankshaft main bearing.
5. crankshaft structure according to claim 4 is characterized in that more comprising at least one bearing support, and wherein, this crankshaft main bearing is fixed among the bearing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620018599 CN2883766Y (en) | 2006-03-28 | 2006-03-28 | Crankshaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620018599 CN2883766Y (en) | 2006-03-28 | 2006-03-28 | Crankshaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2883766Y true CN2883766Y (en) | 2007-03-28 |
Family
ID=37956828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620018599 Expired - Lifetime CN2883766Y (en) | 2006-03-28 | 2006-03-28 | Crankshaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2883766Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105197B (en) * | 2007-08-09 | 2010-12-08 | 力帆实业(集团)股份有限公司 | Crankshaft for gasoline engine |
| CN102654160A (en) * | 2011-03-04 | 2012-09-05 | 铃木株式会社 | Crankshaft and engine provided with the same |
-
2006
- 2006-03-28 CN CN 200620018599 patent/CN2883766Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105197B (en) * | 2007-08-09 | 2010-12-08 | 力帆实业(集团)股份有限公司 | Crankshaft for gasoline engine |
| CN102654160A (en) * | 2011-03-04 | 2012-09-05 | 铃木株式会社 | Crankshaft and engine provided with the same |
| CN102654160B (en) * | 2011-03-04 | 2015-04-01 | 铃木株式会社 | Crankshaft and engine provided with the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101469645B (en) | Radial bearing | |
| CN2883766Y (en) | Crankshaft structure | |
| CN202065329U (en) | Connecting rod part of gasoline engine | |
| CN205092741U (en) | High quick -action balancing unit of 2P antifriction bearing structure electric motor rotor | |
| CN102392711B (en) | Engine balance shaft oil pressure releasing structure | |
| CN200982355Y (en) | Bush type active and static pressure bearing rolling unloading transmission shaft | |
| CN201560809U (en) | Turbocharger floating bearing | |
| CN101761637A (en) | Split type vertical planet speed reducer | |
| CN201359013Y (en) | Self-aligning roller bearing | |
| CN103244234B (en) | Oil passage structure of engine | |
| CN203285828U (en) | Crank shaft of automobile engine | |
| CN203868125U (en) | Bimetallic balanced bearing | |
| CN203189519U (en) | Stamping rolling needle bearing capable of realizing swinging function | |
| CN202301455U (en) | Multi-oil hole main shaft bushing for engine | |
| CN202348990U (en) | Split bearing bush seat-type sliding bearing box | |
| CN204553523U (en) | Dry type bent axle | |
| CN2775376Y (en) | Composite bush used in motorcycle engine crank shaft linking rod module | |
| CN201461402U (en) | Rotary type compressor provided with tool crank shaft without withdrawal groove | |
| CN203515841U (en) | Engine cylinder block and engine | |
| CN202597103U (en) | Rolling rotor compressor supported by magnetic bearings | |
| CN205401466U (en) | Bearing spacer sleeve | |
| CN2861595Y (en) | General purpose petrol engine crankshaft | |
| CN202370608U (en) | Oil pressure unloading structure for balance shaft of motorcycle engine | |
| CN106763195B (en) | A kind of elasticity tilting bush sliding bearing | |
| CN203296859U (en) | Crank pin used for motorcycle engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070328 |
|
| EXPY | Termination of patent right or utility model |