一种新成型工艺通用型20缸发动机曲轴
By setting annular flow grooves and flow dividers on the main bearing journal, the problem of cumbersome engine crankshaft lubrication and maintenance is solved, achieving efficient lubrication without removing the top cover, and improving lubrication effect and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN YUNUO MASCH CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
The existing 20-cylinder engine crankshaft requires the top cover to be removed and lubricated before lubrication maintenance, which makes the maintenance process cumbersome, time-consuming and labor-intensive.
An annular flow groove and multiple flow distribution grooves are opened on the main bearing journal, and an oil injection hole is provided. After the lubricating oil is injected into the annular flow groove through the oil injection hole, it is evenly distributed to various parts, so as to achieve lubrication without removing the top cover.
It simplifies the lubrication process, saves time and labor costs, and improves lubrication effect and efficiency.
Smart Images
Figure CN224515649U_ABST
Abstract
Claims
1. A new type of 20-cylinder engine crankshaft for general forming process, comprising a main journal (1) and a main bearing journal (2) sleeved thereon and a plurality of crank arms (3), characterized in that, The main bearing journal (2) is provided with an annular flow groove (21) and multiple flow dividers (22). The multiple flow dividers (22) are circumferentially equidistantly provided on the main bearing journal (2), and the flow dividers (22) are connected to the annular flow groove (21). An oil injection hole (23) is provided on one side of the main bearing journal (2), and the oil injection hole (23) is connected to the annular flow groove (21).
2. A new forming process universal type 20 cylinder engine crankshaft as claimed in claim 1, wherein, The outer edges of the annular flow channel (21) and the outer edges of the diversion channel (22) are both provided with chamfers (211).
3. The universal 20-cylinder engine crankshaft with a new forming process according to claim 1, characterized in that, A crank pin journal (4) is provided between adjacent cranks (3).
4. A new forming process universal type 20 cylinder engine crankshaft as claimed in claim 1, wherein, A flange (5) is fixedly connected to one end of the main journal (1), and the flange (5) is used to install the flywheel.
5. A new forming process universal 20 cylinder engine crankshaft as claimed in claim 1, wherein, A sprocket seat (6) is fixedly connected to one side of the main bearing journal (2), and the sprocket seat (6) is used to install the transmission sprocket.
6. A new forming process universal type 20 cylinder engine crankshaft as claimed in claim 5 wherein, One side of the sprocket seat (6) is fixedly connected to an end seat (7), which is used to install a vibration damper.
7. A new forming process universal type 20 cylinder engine crankshaft as claimed in claim 1, wherein, The flow divider (22) is configured as a straight channel (221), and the angle between the straight channel (221) and the annular flow channel (21) is a right angle.
8. A new forming process universal type 20 cylinder engine crankshaft as claimed in claim 1, wherein, The diversion channel (22) is configured as an inclined channel (222), and the angle between the inclined channel (222) and the annular channel (21) is an acute angle.