CN201739295U - Crankshaft rear end connecting structure of internal combustion engine with rear gear chamber - Google Patents
Crankshaft rear end connecting structure of internal combustion engine with rear gear chamber Download PDFInfo
- Publication number
- CN201739295U CN201739295U CN2010202709823U CN201020270982U CN201739295U CN 201739295 U CN201739295 U CN 201739295U CN 2010202709823 U CN2010202709823 U CN 2010202709823U CN 201020270982 U CN201020270982 U CN 201020270982U CN 201739295 U CN201739295 U CN 201739295U
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- flywheel
- bent axle
- gear
- flange
- crankshaft
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- Expired - Lifetime
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 238000005474 detonation Methods 0.000 abstract description 4
- 238000005242 forging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a bent axle rear end draw bail of rearmounted gear room internal-combustion engine, including bent axle, bent axle gear, flywheel assembly and flywheel flange, wherein the flywheel drive end of bent axle sets up the flywheel flange to, flywheel flange and bent axle formula structure as an organic whole, the flywheel drive end of bent axle extend a shaft section to flywheel assembly direction, and the bent axle gear suit is in outside the shaft section, the flywheel assembly is provided with the fastener, and the fastener makes flywheel assembly and bent axle gear be fixed in on the flywheel flange. The utility model discloses a flywheel flange and bent axle formula structure as an organic whole have improved the stability that the torsional rigidity of bent axle rear end was used for a long time, are of value to the torsional vibration who improves the engine shafting to the size of bent axle gear does not receive the restriction of flywheel flange size, provides bigger flexibility for arranging of gear train, and the reliability of the engine of high-power, high detonation pressure can be guaranteed to the bent axle rear end draw bail of this kind of rearmounted gear room internal-combustion engine moreover.
Description
Technical field
The utility model relates to the vehicle internal combustion engine technical field, refers to a kind of crankshaft rear end connecting structure of rearmounted gear chamber internal-combustion engine particularly.
Technical background
In the prior art, for rearmounted gear chamber internal-combustion engine, its crankshaft rear end mainly contains two kinds of connecting structures: 1) crankshaft gear and flywheel flange are connected on the bent axle by hot cover process; 2) flywheel flange and bent axle are processed as a solid forging, and crankshaft gear is installed in flywheel flange outside.The long-term production practice shows, the main limit that lacks of above-mentioned two kinds of connecting structures is: for first kind of connecting structure, can cause that the crankshaft rear end torsional stiffness significantly descends, because accounting for the ratio of the rotary inertia of engine shaft system, Rotary Inertia of Flywheel can reach 60%～70%, the decline of crankshaft rear end torsional stiffness, can aggravate the torsional vibration of engine shaft system, secondly, in this connecting mode, crankshaft gear and flywheel flange connect with bent axle by hot jacket, for motor high-power, high detonation pressure, the reliability of its connection also be cannot say for sure to demonstrate,prove; For second kind of connecting mode, because crankshaft gear need be installed in flywheel flange outside, make the size of crankshaft gear be subjected to the restriction of flywheel flange, relatively large, make the shared space of whole train of gearings become big, influence the layout of train of gearings.
The model utility content
The purpose of this utility model is at above-mentioned technical problem, descend for the internal-combustion engine of gear chamber postposition provides a kind of crankshaft rear end torsional stiffness of improving, and help the crankshaft rear end connecting structure of the rearmounted gear chamber internal-combustion engine of whole train of gearings spatial arrangement in the internal-combustion engine.This structure also is applicable to internal-combustion engine high-power, high detonation pressure.
For realizing this purpose, the crankshaft rear end connecting structure of a kind of rearmounted gear chamber internal-combustion engine that the utility model is designed, comprise bent axle, crankshaft gear, fly wheel assembly and flywheel flange, wherein the flywheel driving end of bent axle is provided with the flywheel flange, and, flywheel flange and bent axle are integral structure, the flywheel driving end of described bent axle extends a shaft part to the fly wheel assembly direction, crankshaft gear is sleeved on outside the described shaft part, fly wheel assembly is provided with fastening piece, and described fastening piece is fixed on the flywheel flange fly wheel assembly and crankshaft gear.
Described fastening piece is a bolt of flywheel, and this bolt of flywheel screws in the screw of flywheel flange correspondence after passing fly wheel assembly and axially running through crankshaft gear, and fly wheel assembly and crankshaft gear and flywheel flange are fixed.
The end face of described shaft part is at least 0.1mm with the spacing that connects end face of fly wheel assembly.
Advantage of the present utility model: flywheel flange and bent axle are that integral structure has improved the long-time stability of using of rigidity that crankshaft rear end reverses, be of value to the torsional vibration that improves engine shaft system, and use bolt of flywheel to make fly wheel assembly and crankshaft gear and the fixing mode of flywheel flange, improved the reliability that flywheel and crankshaft gear connect with bent axle; Make the size of crankshaft gear not be subjected to the restriction of flywheel flange size simultaneously, for the layout of train of gearings provides greater flexibility, and the crankshaft rear end connecting structure of this rearmounted gear chamber internal-combustion engine can guarantee the reliability of the motor of high-power, high detonation pressure.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Wherein, 1-bent axle, 2-crankshaft gear, 3-fly wheel assembly, 4-bolt of flywheel, 5-flywheel flange, 6-flywheel driving end, 7-shaft part.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
The crankshaft rear end connecting structure of a kind of rearmounted gear chamber internal-combustion engine as shown in the figure, comprise bent axle 1, crankshaft gear 2, fly wheel assembly 3 and flywheel flange 5, wherein the flywheel driving end 6 of bent axle 1 is provided with flywheel flange 5, and, flywheel flange 5 and bent axle 1 add the forging in man-hour and are integral the formula structure, the flywheel driving end 6 of bent axle 1 extends a shaft part 7 to fly wheel assembly 3 directions, crankshaft gear 2 is sleeved on outside the described shaft part 7, fly wheel assembly 3 is provided with fastening piece, and fastening piece is fixed on the flywheel flange 5 fly wheel assembly 3 and crankshaft gear 2.
In the technique scheme, fastening piece is preferably bolt of flywheel 4, this bolt of flywheel 4 passes the bolt hole of fly wheel assembly 3, and screws in the screw of flywheel flange 5 correspondences after passing the axial bolts hole of shaftgear 2, makes fly wheel assembly 3 and crankshaft gear 2 fixing with flywheel flange 5.The end face of described shaft part 7 is at least 0.1mm with the spacing that connects end face of fly wheel assembly 3.When guaranteeing crankshaft gear 2 radial locations and support, avoid the end face of shaft part 7 to fit with the end face that connects of fly wheel assembly 3.
When the utility model is installed, utilize 7 pairs of crankshaft gears of shaft part 2 of flywheel flange 5 back to carry out radial location and support, the mode that connects by bolt of flywheel 4 is connected to crankshaft gear 2 and fly wheel assembly 3 on the flywheel flange 5 together then.
Claims (3)
1. the crankshaft rear end connecting structure of a rearmounted gear chamber internal-combustion engine, comprise bent axle (1), crankshaft gear (2), fly wheel assembly (3) and flywheel flange (5), wherein the flywheel driving end (6) of bent axle (1) is provided with flywheel flange (5), and, flywheel flange (5) and bent axle (1) are integral structure, it is characterized in that: the flywheel driving end (6) of described bent axle (1) extends a shaft part (7) to fly wheel assembly (3) direction, crankshaft gear (2) is sleeved on outside the described shaft part (7), fly wheel assembly (3) is provided with fastening piece, and described fastening piece is fixed on the flywheel flange (5) fly wheel assembly (3) and crankshaft gear (2).
2. the crankshaft rear end connecting structure of rearmounted gear chamber internal-combustion engine according to claim 1, it is characterized in that: described fastening piece is bolt of flywheel (4), this bolt of flywheel (4) passes fly wheel assembly (3) and axially runs through crankshaft gear (2) back and screws in the corresponding screw of flywheel flange (5), makes fly wheel assembly (3) and crankshaft gear (2) and flywheel flange (5) fixing.
3. the crankshaft rear end connecting structure of rearmounted gear chamber internal-combustion engine according to claim 1 is characterized in that: the end face of described shaft part (7) is at least 0.1mm with the spacing that connects end face of fly wheel assembly (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202709823U CN201739295U (en) | 2010-07-26 | 2010-07-26 | Crankshaft rear end connecting structure of internal combustion engine with rear gear chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202709823U CN201739295U (en) | 2010-07-26 | 2010-07-26 | Crankshaft rear end connecting structure of internal combustion engine with rear gear chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739295U true CN201739295U (en) | 2011-02-09 |
Family
ID=43554570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202709823U Expired - Lifetime CN201739295U (en) | 2010-07-26 | 2010-07-26 | Crankshaft rear end connecting structure of internal combustion engine with rear gear chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739295U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465125A (en) * | 2013-09-26 | 2013-12-25 | 南车戚墅堰机车有限公司 | Reliable flywheel flange and thin-walled taper sleeve interworking processing method |
| CN104455317A (en) * | 2014-11-26 | 2015-03-25 | 中国北车集团大连机车车辆有限公司 | Connecting structure of crankshaft gear and crankshaft of diesel engine |
| CN105650226A (en) * | 2016-03-22 | 2016-06-08 | 于明 | Inertial gyroscope type instantaneous forcing torque force enhancement machine |
| CN109084123A (en) * | 2018-11-07 | 2018-12-25 | 河南柴油机重工有限责任公司 | A kind of compact enclosed bell housing and elastic damping shaft coupling section arrangement |
-
2010
- 2010-07-26 CN CN2010202709823U patent/CN201739295U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465125A (en) * | 2013-09-26 | 2013-12-25 | 南车戚墅堰机车有限公司 | Reliable flywheel flange and thin-walled taper sleeve interworking processing method |
| CN104455317A (en) * | 2014-11-26 | 2015-03-25 | 中国北车集团大连机车车辆有限公司 | Connecting structure of crankshaft gear and crankshaft of diesel engine |
| CN105650226A (en) * | 2016-03-22 | 2016-06-08 | 于明 | Inertial gyroscope type instantaneous forcing torque force enhancement machine |
| CN109084123A (en) * | 2018-11-07 | 2018-12-25 | 河南柴油机重工有限责任公司 | A kind of compact enclosed bell housing and elastic damping shaft coupling section arrangement |
| CN109084123B (en) * | 2018-11-07 | 2024-03-15 | 河南柴油机重工有限责任公司 | Compact closed flywheel housing and elastic damping coupling arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130906 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130906 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic & Technological Development Zone, Hubei, Wuhan, China, No. 10 Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
|
| CX01 | Expiry of patent term |