CN201261534Y - Rotary connecting device for crankshaft and connecting rod of motorcycle engine - Google Patents
Rotary connecting device for crankshaft and connecting rod of motorcycle engine Download PDFInfo
- Publication number
- CN201261534Y CN201261534Y CNU2008201477624U CN200820147762U CN201261534Y CN 201261534 Y CN201261534 Y CN 201261534Y CN U2008201477624 U CNU2008201477624 U CN U2008201477624U CN 200820147762 U CN200820147762 U CN 200820147762U CN 201261534 Y CN201261534 Y CN 201261534Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- connecting rod
- big end
- ball
- motorcycle engine
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a rotary connecting device of a crankshaft and a connecting rod of a motorcycle engine, wherein a crankshaft pin is connected with a big end of the connecting rod in a rotating fit way through a ball bearing; the crank pin is provided with a bearing inner ring, and the connecting hole of the big end of the connecting rod is internally provided with a bearing outer ring. The utility model discloses use ball bearing to replace bearing, guarantee that the connecting rod is pushing away, drawing, the required softness performance of swing in-process and the required hardness of bearing work and wear resistance, avoid causing connecting rod, bent axle rotating system's damage because of non-radial effort. The service life is prolonged, the use cost is reduced, and the quality of the engine is improved.
Description
Technical field
The utility model relates to a kind of rotary connecting device, refers to the rotary connecting device of a kind of motorcycle engine crankshaft and connecting rod especially.
Background technology
The Crankpin between the motorcycle engine crankshaft and the normal-running fit of connecting rod big end, the performance of connecting rod will satisfy continuous rotation needs connecting rod big end on the one hand and Crankpin has higher hardness and wear resisting property; Also to satisfy connecting rod on the other hand and push away, draw, swing needed flexility.And at present, the Crankpin between the motorcycle engine crankshaft all adopts needle bearing to be connected with the normal-running fit of connecting rod big end, and Crankpin is as the inside race of needle bearing, and connecting rod big end is as the outside race of needle bearing.This rotation connection structure has the strong advantage of bearing capacity, but drive in the bent axle working process at connecting rod, be subjected to the influence of non-radial effect power, making connecting rod big end, needle roller, Crankpin is not often to be in desirable mode of operation, cause an end of needle roller stressed big, the other end is stressed little.Because the outside race of connecting rod big end double as bearing, connecting rod can not satisfy needed hardness of bearing working and wear resisting property simultaneously for satisfying flexility.Therefore, phenomenons such as, bearing holdere damage stuck such as the wearing and tearing of: connecting rod big end, needle bearing will often appear.And then cause problems such as bent axle is stuck, bent axle abnormal sound, bring the waste of economic loss and time, energy for the motor bike user.
The utility model content
The purpose of this utility model provides a kind of flexility that had both kept connecting rod, can satisfy needed hardness of bearing working and wear resisting property again, avoid that connecting rod big end damages, bearing is stuck, reduce maintenance, the motorcycle engine crankshaft that increases engine life and the rotary connecting device of connecting rod.
For achieving the above object, the technical solution adopted in the utility model is: the Crankpin that the rotary connecting device of a kind of motorcycle engine crankshaft and connecting rod, two ends are fixed on the bent axle is connected with the connecting rod big end normal-running fit by bearing.Described bearing is a ball-bearing casing; Be provided with on Crankpin and Crankpin heavy keying fit bonded assembly bearing inner ring, be provided with in the connecting bore of connecting rod big end and connecting rod big end heavy keying fit bonded assembly bearing outside collar, rolling steel balls places between bearing inner ring and the bearing outside collar.
The rotary connecting device of above-mentioned motorcycle engine crankshaft and connecting rod, described ball-bearing casing are 1 single row ball bearing.
The rotary connecting device of above-mentioned motorcycle engine crankshaft and connecting rod, described ball-bearing casing are to become two single row ball bearings of installing.
The rotary connecting device of above-mentioned motorcycle engine crankshaft and connecting rod, described ball-bearing casing are double-range ball bearing.
The beneficial effects of the utility model are:
1, adopt ball-bearing casing to replace needle bearing, roll between the outside race that is provided with in the inside race that the one side rolling steel balls is provided with on Crankpin and the connecting bore of connecting rod big end, only need to keep outside race and inside race has higher hardness and wear resisting property gets final product, connecting rod still keeps certain flexility, eliminates the wearing and tearing of non-radial effect power to connecting rod big end by ball-bearing casing.Phenomenons such as the connecting rod of having avoided the effect because of non-diametral load to cause effectively damages, bearing is stuck increase service life, reduce use cost.
2, motor cycle engine power when power is big, adopts two single row ball bearings of installing than hour 1 single row ball bearing of employing, or double-range ball bearing.Can select as required to install.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Description of drawings
Fig. 1 is that master of the present utility model looks scheme drawing
Fig. 2 is bearing and the pin shaft structure scheme drawing of the utility model embodiment 1
Fig. 3 is bearing and the pin shaft structure scheme drawing of the utility model embodiment 2
Fig. 4 is bearing and the pin shaft structure scheme drawing of the utility model embodiment 2
Mark among the figure: 1-Crankpin 2-connecting rod big end 3-bearing 4-bent axle 5-bearing inner ring 6-bearing outside collar 7-rolling steel balls
The specific embodiment
As shown in Figure 1, the rotary connecting device of a kind of motorcycle engine crankshaft and connecting rod, the Crankpin 1 that two ends are fixed on the bent axle 4 is connected with connecting rod big end 2 normal-running fiies by bearing 3, and it is characterized in that: described bearing is a ball-bearing casing; Be provided with on Crankpin and Crankpin heavy keying fit bonded assembly bearing inner ring 5, be provided with in the connecting bore of connecting rod big end and connecting rod big end heavy keying fit bonded assembly bearing outside collar 6, rolling steel balls 7 places between bearing inner ring and the bearing outside collar.
Embodiment 1
As shown in Figure 2, described ball-bearing casing is 1 single row ball bearing.
Embodiment 2
As shown in Figure 3, described ball-bearing casing is to become two single row ball bearings of installing.
Embodiment 3
As shown in Figure 4, described ball-bearing casing is a double-range ball bearing.
The utility model replaces needle bearing by using ball-bearing casing, on Crankpin, be provided with the bearing inner ring of captiveing joint with Crankpin, in the connecting bore of connecting rod big end, be provided with bearing outside collar, guarantee connecting rod push away, draw, needed softness and needed hardness of bearing working and wear resisting property in the swing process, avoid causing the damage of connecting rod, bent axle rotation system because of non-radial effect power.Increase service life, reduce use cost, improve engine quality.
Claims (4)
1, the Crankpin (1) that the rotary connecting device of a kind of motorcycle engine crankshaft and connecting rod, two ends are fixed on the bent axle (4) is connected with connecting rod big end (2) normal-running fit by bearing (3), and it is characterized in that: described bearing is a ball-bearing casing; Be provided with on Crankpin and Crankpin heavy keying fit bonded assembly bearing inner ring (5), be provided with in the connecting bore of connecting rod big end and connecting rod big end heavy keying fit bonded assembly bearing outside collar (6), rolling steel balls (7) places between bearing inner ring and the bearing outside collar.
2, according to the rotary connecting device of described motorcycle engine crankshaft of claim 1 and connecting rod, it is characterized in that: described ball-bearing casing is 1 single row ball bearing.
3, according to the rotary connecting device of described motorcycle engine crankshaft of claim 1 and connecting rod, it is characterized in that: described ball-bearing casing is to become two single row ball bearings of installing.
4, according to the rotary connecting device of described motorcycle engine crankshaft of claim 1 and connecting rod, it is characterized in that: described ball-bearing casing is a double-range ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201477624U CN201261534Y (en) | 2008-06-21 | 2008-06-21 | Rotary connecting device for crankshaft and connecting rod of motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201477624U CN201261534Y (en) | 2008-06-21 | 2008-06-21 | Rotary connecting device for crankshaft and connecting rod of motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201261534Y true CN201261534Y (en) | 2009-06-24 |
Family
ID=40808003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201477624U Expired - Fee Related CN201261534Y (en) | 2008-06-21 | 2008-06-21 | Rotary connecting device for crankshaft and connecting rod of motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201261534Y (en) |
-
2008
- 2008-06-21 CN CNU2008201477624U patent/CN201261534Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210686885U (en) | Transmission mechanism for converting rotary motion into reciprocating motion | |
| CN201261534Y (en) | Rotary connecting device for crankshaft and connecting rod of motorcycle engine | |
| CN201586899U (en) | Novel internal grinding device | |
| CN201884219U (en) | Integral bearing block type wind driven generator low-speed shaft transmission system with double bearings | |
| CN200982355Y (en) | Bush type active and static pressure bearing rolling unloading transmission shaft | |
| CN101162027A (en) | Press compound bearing | |
| CN202673994U (en) | Oil storage type ball head link rod aligning knuckle bearing | |
| CN201916405U (en) | Elastic spacer bush of transmission shaft of automobile axle speed reducer | |
| CN201261533Y (en) | Rotary connecting device for crankshaft and connecting rod of motorcycle engine | |
| CN2777272Y (en) | Assembly of tension wheel bearing | |
| CN101307697A (en) | Rotary connecting device for crankshaft and connecting rod of motorcycle engine | |
| CN207117397U (en) | A kind of plug-in type machine shaft | |
| CN207131587U (en) | Pump assembly, compressor and air conditioner | |
| CN202388819U (en) | Connection mechanism of on-off arrester and gear box of mechanical press | |
| CN2587541Y (en) | Combined roller | |
| CN201723325U (en) | Wear-resistant crankshaft box body | |
| CN2916245Y (en) | Fork-joint type universal ball coupling | |
| CN210771388U (en) | Multi-point lubricating pump | |
| CN106763195B (en) | A kind of elasticity tilting bush sliding bearing | |
| CN203868126U (en) | Multilayered composite wear-resistant balance bearing | |
| CN207554765U (en) | A kind of ball type anti-attrition gasket construction | |
| CN201851494U (en) | Improved thrust cylinder roller bearing | |
| CN203146765U (en) | Transition wheel | |
| CN216867326U (en) | Bearing connecting device based on flywheel of press machine | |
| CN202065453U (en) | Reverse transition gear for tractor gearbox |
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: 20090624 Termination date: 20120621 |