CN204692309U - A kind of engine crankshaft lubricating structure - Google Patents
A kind of engine crankshaft lubricating structure Download PDFInfo
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- CN204692309U CN204692309U CN201520381344.1U CN201520381344U CN204692309U CN 204692309 U CN204692309 U CN 204692309U CN 201520381344 U CN201520381344 U CN 201520381344U CN 204692309 U CN204692309 U CN 204692309U
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- oil
- crank pin
- main shaft
- bent axle
- lubricating structure
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
A kind of engine crankshaft lubricating structure, described bent axle comprises the crank pin on main shaft and main shaft, and crank pin is connected with link rotatable, and main shaft is provided with oil inlet hole, be provided with the oil groove be communicated with this oil inlet hole in main shaft, in crank pin, be provided with the oil duct being communicated with this oil groove and crank pin outer surface.The utility model arranges oil groove and is communicated with the oil duct on crank pin with the oilhole on bent axle in bent axle, lubricant oil is gathered and is had certain pressure in oil groove, therefore can ensure that enough oil masses are to meet the lubrication of crank pin, also can ensure that the lubrication pressure of each strong point is consistent, ensure that stability and the reliability of structure.
Description
Technical field
The utility model relates to a kind of lubricating structure, particularly relates to a kind of lubricating structure starting bent axle.
Background technique
Bent axle is the critical piece of motor transferring power, and bent axle accepts connecting rod and coupled piston, and the gas pressure that firing chamber produces is converted into moment of torsion by bent axle thus driving machine running body.Bent axle needs when moving to ensure lubrication fully, the lubricating oil path of inclined oil hole of air composition bent axle of traditional engine crankshaft generally by main oil gallery that main shaft is arranged and rod journal are arranged, the patent No. be 200720191782.7 Chinese patent disclose a kind of automobile engine crankshaft lubricating structure, comprise main shaft, main shaft there are eight equilibrium blocks, adjacently connected by four pitman shafts between equilibrium block between two, four pitman shafts balance up and down along main shaft, have oil duct to communicate between main shaft with pitman shaft.This starts in crankshaft lubrication structure, lubricant oil needs directly to splash by the oil duct arrival pitman shaft surface of pitman shaft from the oil duct of main shaft, because the oil mass in main shaft is limited, therefore, the oil mass being splashed to pitman shaft surface is little, therefore, inadequate to the lubrication of pitman shaft, easily wear and tear in pitman shaft and connecting rod joint, even locking connecting rod, directly damages motor.
Model utility content
The purpose of this utility model is the engine crankshaft lubricating structure providing a kind of high lubricating effect.
The purpose of this utility model realizes like this, a kind of engine crankshaft lubricating structure, bent axle comprises the crank pin on main shaft and main shaft, crank pin and pitman shaft are rotationally connected, main shaft is provided with oil inlet hole, be provided with the oil groove be communicated with this oil inlet hole in main shaft, in crank pin, be provided with the oil duct being communicated with this oil groove and crank pin outer surface.Lubricant oil enters oil groove by oil inlet hole and in oil groove inner accumulated, lubricant oil in oil groove has certain oil pressure, under oil pressure effect, lubricant oil in oil groove reaches the outer surface of crank pin by oil duct, make crank arm and arrange between the connecting rod on it to be lubricated, because lubricant oil has certain oil pressure in oil groove inner accumulated, therefore can ensure that enough oil masses are to meet the lubrication between crank pin and connecting rod.
In order to ensure oil pressure and oil mass further, improving lubrication effect, be also provided with oil groove in crank pin and be communicated with by oil duct with the oil groove in main shaft.
Bent axle is by main shaft support on engine housing, and support place of casing is provided with oil inlet passage.Lubricant oil directly enters the oil inlet hole on bent axle by the oil inlet passage on casing, can avoid the loss of lubricant oil.
Bent axle is multiple, and the crank pin of multiple bent axle is connected as one by crankweb, and multiple main shaft is supported on casing respectively, and in order to ensure structure stability and improve lubrication effect, the multiple support place correspondences on casing arrange multiple oil inlet passage.Lubricant oil enters the oil groove of bent axle inside from multiple points of bent axle, can ensure that sufficient oil mass is lubricated pitman shaft.
Oil inlet passage is connected with oil pump by the main oil gallery on casing.Lubricant oil is delivered directly to the oil inlet passage on casing by oil pump, further ensure lubrication oil supplying.
In order to easy to process, also in order to make the oil pressure at bent axle strong point place everywhere be consistent, multiple oil inlet passage shares a main oil gallery.
Main oil gallery is U-shaped, and two port is connected to form circulation loop with oil pump respectively.
U-shaped main oil gallery is comprised oil-feed section oil duct with fuel-displaced section of oil duct and is connected by linkage section oil duct, and support place of casing is provided with the oil inlet passage be communicated with oil-feed section oil duct or/and fuel-displaced section of oil duct.According to actual conditions, the oil inlet passage be communicated with oil-feed section oil duct or fuel-displaced section of oil duct can be set in support place of casing, also in support place of casing, the oil inlet passage be communicated with fuel-displaced section of oil duct with oil-feed section oil duct respectively can be set, so that meet different actual demand.
The utility model has following beneficial effect:
1, the utility model arranges oil groove and is communicated with the oil duct on crank pin with the oilhole on bent axle in bent axle, and lubricant oil is gathered and reaches certain oil pressure in oil groove, therefore can ensure that enough oil masses are to meet the lubrication of crank pin.
2, the utility model main shaft support is on engine housing, multiple oil inlet passage shares a main oil gallery, lubricant oil directly enters the oil inlet hole on bent axle by oil inlet passage, while moving element being formed to the oil film of certain oil pressure, can ensure that the lubrication pressure of each strong point is consistent, ensure that stability and the reliability of structure.
3, the utility model is simple and compact for structure, easy to process.
Accompanying drawing explanation
Fig. 1 is the utility model crankshaft lubrication structure schematic diagram;
Fig. 2 be the utility model crankshaft lubrication structure with engine housing in conjunction with schematic diagram;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the D-D sectional view of Fig. 2;
In figure, 1. main shaft, 2. crank pin, 3. oil inlet hole, 4. oil groove, 5. oil duct, 6. casing, 7. oil inlet passage, 8. main oil gallery, 8-1. oil-feed section oil duct, 8-2. fuel-displaced section of oil duct, 8-3. linkage section oil duct, 9. crankweb.
Embodiment
Embodiment 1, a kind of engine crankshaft lubricating structure, and see Fig. 1, the crank pin 2 that this bent axle comprises main shaft 1 and is arranged on main shaft 1, crank pin 2 is provided with crankweb 9, and crank pin 2 is connected with link rotatable.Main shaft 1 is provided with oil inlet hole 3, is provided with the oil groove 4 be communicated with this oil inlet hole 3 in main shaft 1, and crank pin 2 is provided with and is communicated with oil groove 4 and the oil duct 5 of crank pin 2 outer surface, is also provided with oil groove 4 and is communicated with by oil duct 5 with the oil groove 4 in main shaft 1 in crank pin 2.Lubricant oil enters oil groove 4 by oil inlet hole 3 and in oil groove 4 inner accumulated, and the outer surface that lubricant oil to be thrown to crank pin 2 by oil duct 5 by crank rotation lubricates crank pin.Because lubricant oil is having oil groove inner accumulated, therefore can ensure that enough oil masses are to meet the lubrication of crank pin 2.
Embodiment 2, and on the basis of embodiment 1, bent axle is supported on engine housing 6 by main shaft 1, and see Fig. 2, Fig. 3 and Fig. 4, support place of casing 6 is provided with oil inlet passage 7, and oil inlet passage 7 is connected with oil pump by the main oil gallery 8 that casing 6 is arranged.Lubricant oil is transported to the oil inlet passage 7 on casing 6 by oil pump, enter the oil inlet hole 3 main shaft 1, can avoid the loss of lubricant oil from oil inlet passage 7.
Embodiment 3, on the basis of embodiment 1, described bent axle comprises front crankshaft, middle bent axle and rear bent axle, described front crankshaft and rear bent axle include the crank pin 2 of main shaft 1 and main shaft 1 one end, middle bent axle comprises the crank pin 2 at main shaft 1 and main shaft 1 two ends, and the crank pin 2 of middle crankshaft two end is connected respectively by the crank pin 2 of a crankweb 9 with front crankshaft, rear bent axle; Crank pin (2) and pitman shaft are rotationally connected; The main shaft 1 of front crankshaft, rear bent axle and middle bent axle is supported on engine housing 6 respectively, and three support place correspondences on casing 6 arrange three oil inlet passages 7.Oil inlet passage 7 is communicated with the main oil gallery 8 on casing 6, and three oil inlet passages 7 share a main oil gallery 8.Main oil gallery 8 comprises oil-feed section oil duct 8-1 and is connected U-shaped with fuel-displaced section of oil duct 8-2 by linkage section oil duct 8-3, and support place of casing 6 is provided with the oil inlet passage 7 be communicated with fuel-displaced section of oil duct 8-2 with oil-feed section oil duct 8-1 respectively.The two ends of main oil gallery 8 are connected to form circulation loop with oil pump respectively.
The utility model lubricating structure can ensure that enough oil masses are to meet the lubrication of the crank pin kinematic pair of the bent axle of different length, and avoids the loss of lubricant oil, simple and compact for structure, high lubricating effect.
Claims (8)
1. an engine crankshaft lubricating structure, is characterized in that: described bent axle comprises main shaft (1) and is arranged on the crank pin (2) on main shaft (1), and described crank pin (2) and pitman shaft are rotationally connected; Described main shaft (1) is provided with oil inlet hole (3), is provided with the oil groove (4) be communicated with described oil inlet hole (3) in described main shaft (1), is provided with the oil duct (2) being communicated with described oil groove (4) and crank pin (2) outer surface in described crank pin (2).
2. engine crankshaft lubricating structure as claimed in claim 1, be is characterized in that: be also provided with oil groove (4) in described crank pin (2) and be communicated with by oil duct (2) with the oil groove (4) in main shaft (1).
3. engine crankshaft lubricating structure as claimed in claim 1 or 2, is characterized in that: described bent axle is supported on engine housing (6) by main shaft (1), and support place of described casing (6) is provided with oil inlet passage (7).
4. engine crankshaft lubricating structure as claimed in claim 3, it is characterized in that: described bent axle is multiple, the crank pin (2) of multiple bent axle is connected as one by crankweb (9), multiple main shaft (1) is supported on casing (6) respectively, and the multiple support place correspondences on described casing (6) arrange multiple oil inlet passage (7).
5. engine crankshaft lubricating structure as claimed in claim 4, is characterized in that: described oil inlet passage (7) is connected with oil pump by the main oil gallery (8) on casing (6).
6. engine crankshaft lubricating structure as claimed in claim 5, is characterized in that: all oil inlet passages (7) share a main oil gallery (8).
7. engine crankshaft lubricating structure as claimed in claim 6, is characterized in that: described main oil gallery (8) is for U-shaped, and two port is connected to form circulation loop with oil pump respectively.
8. engine crankshaft lubricating structure as claimed in claim 7, it is characterized in that: described U-shaped main oil gallery (8) comprises oil-feed section oil duct (8-1) and is connected with fuel-displaced section of oil duct (8-2) and by linkage section oil duct (8-3), support place of described casing (6) is provided with oil-feed section oil duct (8-1) or/and the oil inlet passage (7) that is communicated with of fuel-displaced section of oil duct (8-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520381344.1U CN204692309U (en) | 2015-06-05 | 2015-06-05 | A kind of engine crankshaft lubricating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520381344.1U CN204692309U (en) | 2015-06-05 | 2015-06-05 | A kind of engine crankshaft lubricating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692309U true CN204692309U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520381344.1U Active CN204692309U (en) | 2015-06-05 | 2015-06-05 | A kind of engine crankshaft lubricating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692309U (en) |
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2015
- 2015-06-05 CN CN201520381344.1U patent/CN204692309U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170619 Address after: 400054, 14, 126 South Main Road, Banan District, Chongqing Patentee after: CHONGQING ZONGSHEN AIRCRAFT ENGINE MANUFACTURING CO.,LTD. Address before: 400054 Banan District, Chongqing City Industrial Park Patentee before: CHONGQING ZONGSHEN POWER MACHINERY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing Patentee after: Chongqing Zongshen Aviation Engine Manufacturing Co.,Ltd. Address before: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing Patentee before: CHONGQING ZONGSHEN AIRCRAFT ENGINE MANUFACTURING CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |