CN212338058U - Tensioner-free oil pump driving wheel system - Google Patents
Tensioner-free oil pump driving wheel system Download PDFInfo
- Publication number
- CN212338058U CN212338058U CN202020606046.9U CN202020606046U CN212338058U CN 212338058 U CN212338058 U CN 212338058U CN 202020606046 U CN202020606046 U CN 202020606046U CN 212338058 U CN212338058 U CN 212338058U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- belt pulley
- drive
- crankshaft
- belt
- 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.)
- Active
Links
Images
Abstract
The utility model discloses exempt from tensioning ware oil pump drive train, including crankcase, crankshaft drive belt pulley, bent axle, semicircle key, oil pump belt pulley, belt, the oil pump passes through flange face bolt fixed connection on the crankcase, and oil pump belt pulley interference fit pressure equipment is on the oil pump center pin, and crankshaft drive belt pulley installs on the bent axle, is connected with the semicircle key of spacing transmission drive moment of torsion between crankshaft drive belt pulley and the bent axle, and the belt is connected between crankshaft drive belt pulley and oil pump belt pulley. The utility model discloses compact structure, transmission are reliable, can reduce the drive power and the friction loss of drive process, reduce the spatial arrangement of crankcase anterior segment, and the NVH performance is superior to chain drive.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to exempt from tensioning ware oil pump drive train.
Background
The engine oil pump in the industry at present is usually driven by a crankshaft directly or by a chain tensioner, the crankshaft directly drives a common oil pump which is generally suitable for being integrated on a front housing, and a chain 10 and a tensioner device 11 are usually required for the more energy-saving and emission-reducing variable-displacement oil pump drive, as shown in fig. 1, the drive mode needs to ensure that a transmission chain always processes a tensioning state in the working process. The above technology has the following disadvantages: the vane type variable displacement oil pump applied to a novel efficient engine cannot be directly driven by the crankshaft, for example, a chain transmission mode is adopted, because a transmission chain is formed by combining one section of metal, an effective, stable and reliable transmission can be met only by a tensioner device, the difficulty and the occupied space of the tensioner arranged at the front section of a crankcase can be increased by the form, the small and compact design concept of the engine cannot be met, and meanwhile, the performance of the chain transmission is lower than that of a belt transmission in the aspects of NVH (Noise, Vibration and Harshness).
Disclosure of Invention
The utility model aims at the defect that above-mentioned prior art exists, provide a exempt from tensioning ware oil pump drive train, this train compact structure, transmission are reliable, can reduce the drive power and the friction loss of drive process, reduce the spatial arrangement of crankcase anterior segment, and the NVH performance is superior to chain drive.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a tensioner-free oil pump driving wheel train comprises a crankcase, a crankshaft driving belt pulley, a crankshaft, a semicircular key, an oil pump belt pulley and a belt, wherein the oil pump is fixedly connected to the crankcase through a flange face bolt, the oil pump belt pulley is pressed on a central shaft of the oil pump in an interference fit mode, the crankshaft driving belt pulley is installed on the crankshaft, the semicircular key for limiting and transmitting driving torque is connected between the crankshaft driving belt pulley and the crankshaft, and the belt is connected between the crankshaft driving belt pulley and the oil pump belt pulley.
The utility model discloses a further technical scheme is: and one end of the crankshaft driving belt pulley and one end of the oil pump belt pulley are respectively provided with a belt thrust surface for limiting the belt from moving and falling off in the axial direction.
The utility model discloses exempt from tensioning ware oil pump drive train has following beneficial effect:
1. a tensioner is not required to be arranged, the part and design cost is reduced, the overall design complexity and the processing cost of the crankcase are reduced, meanwhile, the belt driving system can be designed to be more compact, and the compactness of the engine is improved;
2. the NVH performance of the belt transmission is more excellent;
3. effectively reduce the drive torque and the frictional force of transmission process, make the engine possess better efficiency.
The present invention will be further described with reference to the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of a prior art oil pump drive train with tensioner;
FIG. 2 is a schematic structural diagram of a drive train of the tensioner-free oil pump of the present invention;
FIG. 3 is a side view of FIG. 2 (with the crankcase omitted);
the reference numbers illustrate: 1-crankcase, 2-flange bolt, 3-oil pump, 4-semicircular key, 5-crankshaft, 6-crankshaft driving belt pulley, 7-belt, 8-oil pump central shaft, 9-oil pump belt pulley, 10-chain, 11-tensioner device and 12-belt thrust surface.
Detailed Description
As shown in fig. 2 and 3, the tensioner-free oil pump driving wheel system of the present invention comprises a crankcase 1, a crankshaft driving pulley 6, a crankshaft 5, a semi-circular key 4, an oil pump 3, an oil pump pulley 9, and a belt 7. The oil pump 3 is fixedly connected to the crankcase 1 through a flange bolt 2, and the embodiment adopts a hexagon flange bolt. The oil pump belt pulley 9 is press-fitted on an oil pump central shaft 8 in an interference fit manner, the crankshaft driving belt pulley 6 is installed on the crankshaft 5, a semi-circular key 4 for limiting and transmitting driving torque is connected between the crankshaft driving belt pulley 6 and the crankshaft 5, key grooves corresponding to each other in position are formed in the crankshaft driving belt pulley 6 and the crankshaft 5, and the semi-circular key 4 is installed in the key grooves of the crankshaft driving belt pulley 6 and the crankshaft 5 at the same time. A belt 7 is connected between the crankshaft drive pulley 6 and the oil pump pulley 9. And determining the tooth number and tooth shape parameters of the crankshaft driving belt pulley 6 and the oil pump belt pulley 9 according to the transmission design requirement of the belt 7. One end of the crankshaft driving belt pulley 6 and one end of the oil pump belt pulley 9 are respectively provided with a belt push stop surface 12 for limiting the belt 7 to move and fall off in the axial direction.
The utility model discloses exempt from tensioning ware oil pump drive train installs according to following method: firstly, fastening an oil pump 3 on a crankcase 1 by using a hexagonal flange face bolt 2; and secondly, hanging a belt 7 on the crankshaft driving belt pulley 6, sleeving the crankshaft driving belt pulley 6 into a front end shaft neck of the crankshaft 5, rotating the oil pump belt pulley 9 to a proper angle when the side surface of the belt 7 is attached to the oil pump belt pulley 9, then hanging the belt 7 on the oil pump belt pulley 9, finally pushing the crankshaft driving belt pulley 6 and the belt 7 to a crankshaft thrust surface along the axial direction of the crankshaft 5 at the same time, attaching the crankshaft driving belt pulley 6 to the crankshaft thrust surface, and finishing the installation when the center of the belt 7 is positioned at the center of the crankshaft driving belt pulley 6.
The above embodiments are only preferred embodiments of the present invention, the structure of the present invention is not limited to the forms illustrated in the above embodiments, and any modifications, equivalent substitutions and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (2)
1. The utility model provides a exempt from tensioning ware oil pump drive train, a serial communication port, including crankcase (1), crankshaft drive belt pulley (6), bent axle (5), half round key (4), oil pump (3), oil pump belt pulley (9), belt (7), oil pump (3) are through flange face bolt (2) fixed connection on crankcase (1), oil pump belt pulley (9) interference fit pressure equipment is on oil pump center pin (8), crankshaft drive belt pulley (6) are installed on bent axle (5), be connected with half round key (4) of spacing transmission drive moment of torsion between crankshaft drive belt pulley (6) and bent axle (5), belt (7) are connected between crankshaft drive belt pulley (6) and oil pump belt pulley (9).
2. A tensioner free oil pump drive train as claimed in claim 1, wherein one end of the crankshaft drive pulley (6) and one end of the oil pump pulley (9) are respectively provided with a belt thrust surface (12) for limiting the belt (7) from axially jumping and falling off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020606046.9U CN212338058U (en) | 2020-04-21 | 2020-04-21 | Tensioner-free oil pump driving wheel system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020606046.9U CN212338058U (en) | 2020-04-21 | 2020-04-21 | Tensioner-free oil pump driving wheel system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212338058U true CN212338058U (en) | 2021-01-12 |
Family
ID=74072653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020606046.9U Active CN212338058U (en) | 2020-04-21 | 2020-04-21 | Tensioner-free oil pump driving wheel system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212338058U (en) |
-
2020
- 2020-04-21 CN CN202020606046.9U patent/CN212338058U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2618361C1 (en) | Drive construction of high-pressure fuel pump | |
| CN105317925B (en) | A kind of double mass flywheel based on cam mechanism | |
| US7644814B2 (en) | Supercharger drive pulley | |
| CN100432479C (en) | Engine crankshaft balance shaft mechanism | |
| CN1985106A (en) | Compensating shaft drive | |
| CN2918862Y (en) | Gap self-adjusting diaphragm coupling | |
| CN212338058U (en) | Tensioner-free oil pump driving wheel system | |
| CN107524488A (en) | A kind of automobile with small output volumn engine chain timing system | |
| CN2861626Y (en) | Combined gear | |
| CN2835597Y (en) | Chain transmission device of diesel engine for vehicle | |
| CN2906213Y (en) | Hydraulic transmission box with power output mechanism | |
| CN114233432B (en) | Variable center distance timing system of diesel engine | |
| CN102518512B (en) | Transmission structure of oil pump | |
| CN2577038Y (en) | Wet multi-disc clutch lubricating apparatus for motorcycle engine | |
| CN2934635Y (en) | Ratch type one-way clutch | |
| KR101062517B1 (en) | Rattle noise reduction structure of tractor PTO power line | |
| CN2878728Y (en) | Oil pump | |
| CN105370392B (en) | mechanical supercharger | |
| CN2705596Y (en) | Crank lniking rod mechanism for GY6 motorcycle automatic wave engine | |
| CN219452229U (en) | Engine with a motor | |
| CN2643070Y (en) | Centrifugal friction clutch | |
| CN2775307Y (en) | Gas distribution timing gears module of motorcycle engine | |
| CN2576969Y (en) | Single-cylinder diesel engine capable of sufficiently lubricating drive gear cluster | |
| CN217603208U (en) | Crankshaft connecting structure | |
| CN2508005Y (en) | Six-gear system of single-cylinder diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |