CN201292885Y - Gearing unit of engine - Google Patents
Gearing unit of engine Download PDFInfo
- Publication number
- CN201292885Y CN201292885Y CNU2008201859544U CN200820185954U CN201292885Y CN 201292885 Y CN201292885 Y CN 201292885Y CN U2008201859544 U CNU2008201859544 U CN U2008201859544U CN 200820185954 U CN200820185954 U CN 200820185954U CN 201292885 Y CN201292885 Y CN 201292885Y
- Authority
- CN
- China
- Prior art keywords
- gear
- axle
- idle
- shaft
- camshaft
- 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 relates to a gear train of an engine, which is characterized in that an engine body is fixed with a bottom plate, the bottom plate is provided with a center shaft, a first idler gear shaft, a cam shaft, a second idler gear shaft, an output shaft, a pump drive shaft and an engine oil pump drive shaft, the center shaft is coaxially provided with a large gear and a small gear, the large gear is meshed with a crank timing gear, a cam shaft drive gear is arranged on the cam shaft, an oil spraying pump gear is fixed on the output shaft; the large gear is meshed with a pump drive gear which is arranged in a gear chamber and is arranged on the pump drive shaft, and the crank timing gear is meshed with the engine oil pump drive gear which is arranged on the engine oil drive shaft. The utility model fully utilizes the space of the gear chamber, leads the axial size to be extensively utilized, shortens the axial size of the engine, has more compact arrangement, and improves the reliability of the driving.
Description
Technical field
The utility model relates to a kind of pinion unit of motor, is specifically related to the water pump and the layout of oil pump in gear chamber of motor, belongs to technical field of internal combustion engines.
Background technique
The water pump of multicylinder engine in the past all is to drive water pump by crank pulley with the band transmission, and oil pump is to come transmission by the gear on the camshaft.This structure has only been considered the requirement of motor transmission, and does not consider to do like this axial dimension that can strengthen motor, can make motor complete machine size become big, and reliability reduces.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of pinion unit that can reduce the axial dimension of motor and then reduce the motor of motor complete machine size is provided.
The technological scheme that provides according to the utility model, the pinion unit of motor comprises engine body, crankshaft timing gear, camshaft drive gear, fuel injection pump gear, bent axle, camshaft, crankshaft installed is in body, and crankshaft timing gear is installed on the bent axle; Feature is: fixing bottom-plate on the described engine body, mounting center axle on base plate, the first idle gear axle, camshaft, the second idle gear axle, output shaft, the water pump live axle, the oil pump live axle, be coaxially installed with gearwheel and small gear on the central shaft, gearwheel and crankshaft timing gear engagement, camshaft drive gear is installed on the camshaft, first idle gear is installed on the first idle gear axle, second idle gear is installed on the second idle gear axle, small gear meshes with first idle gear and second idle gear respectively, first idle gear and camshaft drive gear engagement, second idle gear and fuel injection pump gear engagement, fuel injection pump gear is fixed on the output shaft; Gearwheel and water pump driving gear engagement, water pump driving gear is arranged in the gear chamber, and is installed on the water pump live axle, and crankshaft timing gear is meshed with the Oil pump drive gear that is positioned at its below, and Oil pump drive gear is installed on the oil pump live axle.
The gear ratio of described gearwheel and crankshaft timing gear is 2: 1, and the number of teeth of small gear equates with the number of teeth of camshaft drive gear and fuel injection pump gear.
Described base plate is provided with gear chamber cover.Described gear chamber cover internal surface is provided with shrinkage pool, and described central shaft end is provided with spindle nose, and described shrinkage pool matches with described spindle nose.
Compared with the prior art the utility model has the following advantages:
1, the utility model is arranged on water pump driving gear in the gear chamber, has made full use of the space of gear chamber, and the motor axial dimension is farthest utilized, and has dwindled the axial dimension of motor complete machine.
2, the transmission of oil pump comes transmission to change into directly by the crankshaft timing gear transmission by the gear on the camshaft, arranges compactlyer, has improved the reliability of transmission simultaneously.
3, the driving of water pump changes gear transmission into by original belt transmission, has improved the reliability of transmission.
4, gear chamber cover was positioned on the base plate by shrinkage pool and cooperating of spindle nose, located simple and reliable.
Description of drawings
Fig. 1 is a structural front view of the present utility model, has wherein removed gear chamber cover.
Fig. 2 is the A-A sectional view among Fig. 1.
Fig. 3 is the B-B sectional view among Fig. 1.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
Fig. 1～shown in Figure 3 comprises body 1, base plate 2, crankshaft timing gear 3, gearwheel 4, small gear 5, the first idle gears 6, camshaft drive gear 7, second idle gear 8, fuel injection pump gear 9, bent axle 10, central shaft 11, the first idle gear axle 12, camshaft 13, the second idle gear axles 14, output shaft 15, gear chamber cover 16, shrinkage pool 17, spindle nose 18, Oil pump drive gear 19, water pump driving gear 20, water pump live axle 21 and oil pump live axle 22.
As Fig. 1～shown in Figure 3, the utility model base plate 2 is fixed on the front end end face of engine body 1, bent axle 10 is installed in the body 1, crankshaft timing gear 3 is installed on the bent axle 10, passes through bolt mounting center axle 11, the first idle gear axle 12, camshaft 13, the second idle gear axle 14, output shaft 15, water pump live axle 21 and oil pump live axle 22 on base plate 2 respectively.Be coaxially installed with gearwheel 4 and small gear 5 on the central shaft 11, gearwheel 4 and crankshaft timing gear 3 engagements, camshaft drive gear 7 is installed on the camshaft 13, and first idle gear 6 is installed on the first idle gear axle 12, and second idle gear 8 is installed on the second idle gear axle 14.Small gear 5 meshes with first idle gear 6 and second idle gear 8 respectively, first idle gear 6 and camshaft drive gear 7 engagements, second idle gear 8 and fuel injection pump gear 9 engagements.Camshaft drive gear 7 is installed on the camshaft 13, fuel injection pump gear 9 by bolton on output shaft 15.Gearwheel 4 and water pump driving gear 20 engagements, water pump driving gear 20 is arranged in the gear chamber, and be installed on the water pump live axle 21, crankshaft timing gear 3 is meshed with the Oil pump drive gear 19 that is positioned at its below, and Oil pump drive gear 19 is installed on the oil pump live axle 22.
Described gearwheel 4 is 2: 1 with the gear ratio of crankshaft timing gear 3, and the number of teeth of small gear 5 equates with the number of teeth of camshaft drive gear 7 and fuel injection pump gear 9.
Described base plate 2 is provided with gear chamber cover 16.Gear chamber cover 16 internal surfaces are provided with shrinkage pool 17, and central shaft 11 ends are provided with spindle nose 18, and shrinkage pool 17 matches with spindle nose 18.Gear chamber cover 16 was positioned on the base plate 2 by shrinkage pool 17 and cooperating of spindle nose 18.
Transmission process of the present utility model is as follows:
(1) camshaft drive path: the gear ratio of crankshaft timing gear 3 and gearwheel 4 is set to 1: 2, the rotating speed that is delivered to gearwheel 4 by crankshaft timing gear 3 is lowered half, gives first idle gear 6 by the small gear 5 identical with gearwheel 4 rotating speeds with transmission of power then.Because small gear 5 numbers of teeth are few, so smaller volume.First idle gear 6 is given camshaft drive gear 7 with transmission of power because first idle gear 6 can't change velocity ratio, so camshaft drive gear 7 rotating speeds with small gear 5, meaning is that camshaft drive gear 7 rotating speeds are half of crankshaft timing gear 3 rotating speeds.
(2) Injection Pump drive path: a part of transmission of power of small gear 5 is given second idle gear 8, second idle gear 8 is given fuel injection pump gear 9 with transmission of power again, because second idle gear 8 can't change velocity ratio, therefore the rotating speed of fuel injection pump gear 9 is identical with small gear 5, and meaning is that the rotating speed of fuel injection pump gear 9 is half of crankshaft gear rotating speed.
(3) oil pump drive path: a part of power of crankshaft timing gear 3 is directly passed to the Oil pump drive gear 19 that is positioned at its below, thus the work of driving machine oil pump.
(4) water pump drive path: a part of transmission of power of gearwheel 4 is given the water pump driving gear 20 that is engaged with, and water pump driving gear 20 drives pump working again.
Claims (6)
1, a kind of pinion unit of motor comprises engine body (1), crankshaft timing gear (3), camshaft drive gear (7), fuel injection pump gear (9), bent axle (10), camshaft (13) and output shaft (15); It is characterized in that: described engine body (1) is gone up fixing bottom-plate (2), go up mounting center axle (11) at base plate (2), bent axle (10), the first idle gear axle (12), camshaft (13), the second idle gear axle (14), output shaft (15), water pump live axle (21), oil pump live axle (22), be coaxially installed with gearwheel (4) and small gear (5) on the central shaft (11), gearwheel (4) and crankshaft timing gear (3) engagement, crankshaft timing gear (3) is installed on the bent axle (10), camshaft drive gear (7) is installed on the camshaft (13), first idle gear (6) is installed on the first idle gear axle (12), second idle gear (8) is installed on the second idle gear axle (14), small gear (5) meshes with first idle gear (6) and second idle gear (8) respectively, first idle gear (6) and camshaft drive gear (7) engagement, second idle gear (8) and fuel injection pump gear (9) engagement, fuel injection pump gear (9) is fixed on the output shaft (15), gearwheel (4) and water pump driving gear (20) engagement, water pump driving gear (20) is arranged in the gear chamber, and be installed on the water pump live axle (21), crankshaft timing gear (3) is meshed with the Oil pump drive gear (19) that is positioned at its below, and Oil pump drive gear (19) is installed on the oil pump live axle (22).
2, the pinion unit of motor according to claim 1 is characterized in that the described gearwheel (4) and the gear ratio of crankshaft timing gear (3) are 2: 1.
3, the pinion unit of motor according to claim 1 is characterized in that the number of teeth of described small gear (5) equates with the number of teeth of camshaft drive gear (7) and fuel injection pump gear (9).
4, the pinion unit of motor according to claim 1 is characterized in that described base plate (2) is provided with gear chamber cover (16).
5, the pinion unit of motor according to claim 4 is characterized in that described gear chamber cover (16) internal surface is provided with shrinkage pool (17).
6, the pinion unit of motor according to claim 1 is characterized in that described central shaft (11) end is provided with spindle nose (18), and described spindle nose (18) matches with shrinkage pool (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201859544U CN201292885Y (en) | 2008-09-03 | 2008-09-03 | Gearing unit of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201859544U CN201292885Y (en) | 2008-09-03 | 2008-09-03 | Gearing unit of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292885Y true CN201292885Y (en) | 2009-08-19 |
Family
ID=41006362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201859544U Expired - Fee Related CN201292885Y (en) | 2008-09-03 | 2008-09-03 | Gearing unit of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292885Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010025611A1 (en) * | 2008-09-03 | 2010-03-11 | 无锡开普机械有限公司 | A gear assembly for an engine |
| CN109027134A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | The timing marks structure of engine gear system |
| CN114856835A (en) * | 2022-05-30 | 2022-08-05 | 淄柴机器有限公司 | Marine diesel engine oil supply timing adjustment transmission device and marine diesel engine |
-
2008
- 2008-09-03 CN CNU2008201859544U patent/CN201292885Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010025611A1 (en) * | 2008-09-03 | 2010-03-11 | 无锡开普机械有限公司 | A gear assembly for an engine |
| CN109027134A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | The timing marks structure of engine gear system |
| CN114856835A (en) * | 2022-05-30 | 2022-08-05 | 淄柴机器有限公司 | Marine diesel engine oil supply timing adjustment transmission device and marine diesel engine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20170903 |