CN203453410U - Diesel engine gear and chain wheel hybrid transmission system - Google Patents
Diesel engine gear and chain wheel hybrid transmission system Download PDFInfo
- Publication number
- CN203453410U CN203453410U CN201320485799.9U CN201320485799U CN203453410U CN 203453410 U CN203453410 U CN 203453410U CN 201320485799 U CN201320485799 U CN 201320485799U CN 203453410 U CN203453410 U CN 203453410U
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- gear
- sprocket
- oil pump
- idle gear
- chain wheel
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Abstract
The utility model discloses a diesel engine gear and chain wheel hybrid transmission system which comprises a gear transmission system and a chain wheel transmission system. The gear transmission system comprises a crankshaft gear, a left idle gear, a right idle gear, an engine oil pump gear, an oil pump gear and an air compressor gear. The crankshaft gear is installed on a shaft neck at the front end of a crankshaft. The left idle wheel and the right idle wheel are arranged on a left idle gear shaft and a right idle gear shaft respectively. An engine oil pump driving shaft is sleeved with the engine oil pump gear. The oil pump gear is arranged on a fuel pump driving cam shaft. The air compressor gear is installed on an air compressor driving shaft. The chain wheel transmission system comprises a drive chain wheel, a driven chain wheel, chains, a fixed rail, a movable rail and a hydraulic self-tensioning mechanism. The drive chain wheel is arranged at the front end face of the right idle gear. The driven chain wheel is arranged at the front end face of a distribution cam shaft. The drive chain wheel and the driven chain wheel are sleeved with the chains. The right idle gear and the distribution cam shaft are fixed to a machine body and an air cylinder cover respectively. The fixed rail is fixed to a gear chamber. One ends of the movable rail is fixed to the gear chamber, and the other ends of the movable rails are movable ends. The drive chain wheel and the driven chain wheel are of a double-strand-chain structure.
Description
technical field:
The utility model belongs to field of internal combustion engine, relates to a kind of diesel engine power train, relates in particular to a kind of diesel engine gear sprocket wheel hybrid drive train.
background technique:
As everyone knows, timing power train is one of important composition parts of diesel engine.By type of belt drive such as gear, belt, chains, drive fuel pump, distribution cam axle, its moment is according to the rules turned round with crankshaft-synchronous, drive the annex work such as air compressor, oil hydraulic pump simultaneously.Its dimensional parameters affects complete machine size and the weight of diesel engine to a great extent, and its structural strength and reliability directly have influence on the reliability of whole diesel engine.
Along with the fast development of domestic and international diesel engine for automobile advanced technology, the application of mechanism's good rigidly, overhead air distribution camshaft that the natural frequency of vibration is high is more and more extensive.But camshaft is arranged in cylinder head, and its driving mechanism is installed on body, makes the space length of transmission far away.Be subject to this structural limitations, if adopt gear transmission, can cause Transmission gears number to increase, fixing difficulty is installed, mechanism's functional reliability reduces.At present, domestic diesel engine for automobile adopts bel-drivenn timing power train mostly, and maintenance cost is higher, and rate of fault is higher; Or adopt full chain transmission, mechanism driving efficiency is lower, power consumpiton is large, noise is larger, and instantaneous transmission ratio is unstable.And adopt gear, sprocket wheel mixed drive, and make the transmission between bent axle and camshaft both can realize long-distance transmission, can retain the advantage that gear transmission velocity ratio is accurate, reliability is high again.
model utility content:
The purpose of this utility model is to provide a kind of compact structure, simple operation, diesel engine gear sprocket wheel hybrid drive train safe and reliable, with low cost.
The utility model achieves the above object by the following technical programs: diesel engine gear sprocket wheel hybrid drive train, comprising: pinion unit and sprocket driving system, and two power trains produce associated by right idle gear; Pinion unit comprises crankshaft gear, left idle gear, right idle gear, oil pump gear, oil pump gear, air compressor gear; Crankshaft gear is arranged on crankshaft front end axle journal; Left idle gear is arranged on left idle gear shaft, and right idle gear aligns tooth root place mark with crankshaft gear tooth top place mark, be arranged on right idle gear shaft; Oil pump gear interference is on oil pump live axle; Oil pump gear is arranged in fuel pump drive cam shaft; Air compressor gear is arranged on air compressor live axle.
Sprocket driving system comprises that drive sprocket, driven sprocket and chain, orbit determination, moving rail, hydraulic pressure are from tensioning mechanism; Drive sprocket is bolted, and is arranged on right idle gear front-end face; Driven sprocket is bolted, and is arranged on distribution cam axle front-end face; Chain is sleeved on drive sprocket, driven sprocket, and take orbit determination, moving rail and be guiding and support.During suit, right idle gear and the distribution cam axle locating stud by is separately separately fixed in body and cylinder head; Orbit determination is fixed in gear chamber; Moving rail one end is fixed in gear chamber, and the other end is movable end, can left rotation and right rotation under the effect of tensioning mechanism at hydraulic pressure; Hydraulic pressure is from tensioning mechanism by own screw thread, and spinning is on gear chamber cover.
Drive sprocket, driven sprocket adopt double strand chain structure.
The centre distance of crankshaft gear and left idle gear is 100～106mm, and its horizontal centre distance is 97～103mm; The centre distance of left idle gear and air compressor gear is 110～116mm, and its horizontal centre distance is 64～70mm; The centre distance of right idle gear and oil pump gear is 110～116mm, and its horizontal centre distance is 75～81mm; The centre distance of right idle gear and oil pump gear is 118～124mm, and its horizontal centre distance is 95～101mm; The perpendicular distance of drive sprocket and driven sprocket is 287～293mm, and horizontal centre distance is 15～21mm; Hydraulic pressure is 219～225mm from the perpendicular distance of tensioning mechanism and drive sprocket.
The utility model can reach following beneficial effect after adopting technique scheme: pinion unit velocity ratio is accurate, reliability is high, compact structure, can realize the efficient driving between live axle and working shaft, effectively reduces complete machine size simultaneously; Sprocket driving system can realize the long-distance transmission between bent axle and overhead type distribution cam axle, and installation precision requirement is simultaneously low, and part processing cost is low.
accompanying drawing explanation:
Fig. 1 is the structural representation of the utility model diesel engine gear sprocket wheel hybrid drive train.
Fig. 2 is the chain sprocket structure schematic diagram of the utility model diesel engine gear sprocket wheel hybrid drive train.
embodiment:
Below in conjunction with accompanying drawing, the utility model is described further: as shown in Figure 1, this gear sprocket wheel hybrid drive train, comprises pinion unit and sprocket driving system, and two power trains produce associated by right idle gear 3.Pinion unit, comprises crankshaft gear 1, left idle gear 2, right idle gear 3, oil pump gear 4, oil pump gear 5, air compressor gear 6.Crankshaft gear 1 is arranged on crankshaft front end axle journal; Left idle gear 2 is arranged on left idle gear shaft, and relies on shoulder on left idle gear shaft and carry out axially locating through the bolt that left idle gear shaft center hole is fixed on body front-end face; Right idle gear 3 aligns tooth root place mark with crankshaft gear 1 tooth top place mark, be arranged on right idle gear shaft, and rely on shoulder on right idle gear shaft and carry out axially locating through the bolt that right idle gear shaft center hole is fixed on body front-end face; Oil pump gear 4 interferences are on oil pump live axle; Oil pump gear 5 is arranged in fuel pump drive cam shaft; Air compressor gear 6 is arranged on air compressor live axle; Sprocket driving system comprises that drive sprocket 7, driven sprocket 8 and chain 9, orbit determination 10, moving rail 11, hydraulic pressure are from tensioning mechanism 12.Drive sprocket 7 is bolted, and is arranged on right idle gear 3 front-end faces; Driven sprocket 8 is bolted, and is arranged on distribution cam axle front-end face; Chain 9 is sleeved on drive sprocket 7, driven sprocket 8, and to take orbit determination 10, moving rail 11 be guiding and support.During suit, right idle gear 3 and the distribution cam axle locating stud by is separately separately fixed in body and cylinder head; Orbit determination 10 is fixed in gear chamber; Moving rail 11 one end are fixed in gear chamber, and the other end is movable end, can left rotation and right rotation under the effect of tensioning mechanism 12 at hydraulic pressure; Hydraulic pressure is from tensioning mechanism 12 by own screw thread, and spinning is on gear chamber cover.
As shown in Figure 2, drive sprocket 7, driven sprocket 8 adopts double strand chain structures, and bearing capacity is strong, tooth surface light abrasion, to material require lowly, can effectively reduce costs.
Crankshaft gear 1 is 100～106mm with the centre distance A1 of left idle gear 2, and its horizontal centre distance A2 is 97～103mm; Left idle gear 2 is 110～116mm with the centre distance A3 of air compressor gear 6, and its horizontal centre distance A4 is 64～70mm; Right idle gear 3 is 110～116mm with the centre distance A5 of oil pump gear 4, and its horizontal centre distance A6 is 75～81mm; Right idle gear 3 is 118～124mm with the centre distance A7 of oil pump gear 5, and its horizontal centre distance A8 is 95～101mm; Drive sprocket 7 is 287～293mm with the perpendicular distance A9 of driven sprocket 8, and horizontal centre distance A10 is 15～21mm; Hydraulic pressure is 219～225mm from tensioning mechanism 12 with the perpendicular distance A11 of drive sprocket 7.
Crankshaft gear 1 is the crank-driven by motor as the driving gear of pinion unit, and its left side is followed successively by left idle gear 2, air compressor gear 6, and right side is followed successively by right idle gear 3, oil pump gear 4, oil pump gear 5, and drive sprocket 7 is coaxial with right idle gear 3; Drive sprocket 7, as the driving wheel of sprocket driving system, is driven by right idle gear 3 by crankshaft gear 1, by being sleeved on chain 9 transferring power between drive sprocket 7 and driven sprocket 8, relies on hydraulic pressure from tensioning mechanism 12, to realize the auto-tensioning of chain 9.
When engine running, bent axle drives crankshaft gear 1 to turn clockwise at (from engine blower end), meshes left idle gear 2, right idle gear 3; Left idle gear 2 and 6 engagements of air compressor gear, drive air compressor work ，Wei power gear shifting mechanism that pressurized air is provided; Right idle gear 3 meshes with oil pump gear 4 and oil pump gear 5 respectively, driving machine oil pump and fuel pump work simultaneously; Drive sprocket 7 is fixed on right idle gear 3, by the installation mark of right idle gear 3, locates, and relies on chain 9 transmissions, drives distribution cam axle timing relation and crankshaft-synchronous running in accordance with regulations, then drives valve work.Hydraulic pressure withstands on the upper end of moving rail 11 from the plunger front end of tensioning mechanism 12, when chain 9 extends because of wearing and tearing, under the plunger pressure acting in conjunction that pressure oil produces in contained spring power and high-voltage oil cavity, outwards extend, promote moving rail 11 rotations, it is used on chain 9 all the time, the held stationary required tension force that turns round with the masterpiece of fixing.
The utility model compact structure, simple operation, safe and reliable, with low cost, both can realize long-distance transmission, retained again the advantage that gear transmission velocity ratio is accurate, reliability is high.
Claims (3)
1. diesel engine gear sprocket wheel hybrid drive train, comprise: pinion unit and sprocket driving system, pinion unit comprises crankshaft gear (1), left idle gear (2), right idle gear (3), oil pump gear (4), oil pump gear (5), air compressor gear (6); Sprocket driving system comprises that drive sprocket (7), driven sprocket (8) and chain (9), orbit determination (10), moving rail (11), hydraulic pressure are from tensioning mechanism (12); It is characterized in that: the crankshaft gear in pinion unit (1) is arranged on crankshaft front end axle journal; Left idle gear (2) is arranged on left idle gear shaft, and right idle gear (3) aligns tooth root place mark with crankshaft gear (1) tooth top place mark, be arranged on right idle gear shaft; Oil pump gear (4) interference is on oil pump live axle; Oil pump gear (5) is arranged in fuel pump drive cam shaft; Air compressor gear (6) is arranged on air compressor live axle; Drive sprocket (7) in sprocket driving system is bolted, and is arranged on right idle gear (3) front-end face; Driven sprocket (8) is bolted, and is arranged on distribution cam axle front-end face; It is upper that chain (9) is sleeved on drive sprocket (7), driven sprocket (8), and to take orbit determination (10), moving rail (11) be guiding and support; During suit, right idle gear (3) and the distribution cam axle locating stud by is separately separately fixed in body and cylinder head; Orbit determination (10) is fixed in gear chamber; Moving rail (11) one end is fixed in gear chamber, and the other end is movable end, can left rotation and right rotation under the effect of tensioning mechanism (12) at hydraulic pressure; Hydraulic pressure is from tensioning mechanism (12) by own screw thread, and spinning is on gear chamber cover.
2. diesel engine gear sprocket wheel hybrid drive train according to claim 1, is characterized in that: drive sprocket (7), driven sprocket (8) adopt double strand chain structure.
3. diesel engine gear sprocket wheel hybrid drive train according to claim 1, is characterized in that: crankshaft gear (1) is 100～106mm with the centre distance (A1) of left idle gear (2), and its horizontal centre distance (A2) is 97～103mm; Left idle gear (2) is 110～116mm with the centre distance (A3) of air compressor gear (6), and its horizontal centre distance (A4) is 64～70mm; Right idle gear (3) is 110～116mm with the centre distance (A5) of oil pump gear (4), and its horizontal centre distance (A6) is 75～81mm; Right idle gear (3) is 118～124mm with the centre distance (A7) of oil pump gear (5), and its horizontal centre distance (A8) is 95～101mm; Drive sprocket (7) is 287～293mm with the perpendicular distance (A9) of driven sprocket (8), and horizontal centre distance (A10) is 15～21mm; Hydraulic pressure is 219～225mm from tensioning mechanism (12) with the perpendicular distance (A11) of drive sprocket (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320485799.9U CN203453410U (en) | 2013-08-09 | 2013-08-09 | Diesel engine gear and chain wheel hybrid transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320485799.9U CN203453410U (en) | 2013-08-09 | 2013-08-09 | Diesel engine gear and chain wheel hybrid transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453410U true CN203453410U (en) | 2014-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320485799.9U Expired - Fee Related CN203453410U (en) | 2013-08-09 | 2013-08-09 | Diesel engine gear and chain wheel hybrid transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795375A (en) * | 2017-11-10 | 2018-03-13 | 洛阳拖拉机研究所有限公司 | The diesel engine double-layered tooth train of high-pressure oil pump rotating speed switching can be achieved |
| CN108223119A (en) * | 2018-02-07 | 2018-06-29 | 广西玉柴机器股份有限公司 | Engine driving system |
-
2013
- 2013-08-09 CN CN201320485799.9U patent/CN203453410U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795375A (en) * | 2017-11-10 | 2018-03-13 | 洛阳拖拉机研究所有限公司 | The diesel engine double-layered tooth train of high-pressure oil pump rotating speed switching can be achieved |
| CN108223119A (en) * | 2018-02-07 | 2018-06-29 | 广西玉柴机器股份有限公司 | Engine driving system |
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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: 20140226 Termination date: 20190809 |