CN112081659A - Diesel engine front end power output device - Google Patents
Diesel engine front end power output device Download PDFInfo
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- CN112081659A CN112081659A CN202011076687.9A CN202011076687A CN112081659A CN 112081659 A CN112081659 A CN 112081659A CN 202011076687 A CN202011076687 A CN 202011076687A CN 112081659 A CN112081659 A CN 112081659A
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- fan
- belt
- pulley
- wheel
- belt pulley
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a front-end power output device of a diesel engine, belonging to the technical field of power output devices. The invention can stably and effectively output the power generated by the engine, and the fan transmission is driven by the second wheel train independently, so that the accuracy requirements of the parallelism and the coplanarity of the whole wheel train can be reduced, the fan transmission can run more stably, the problem of power output of the wheel train at the front end of the diesel engine is solved, the power output device is further suitable for the space requirement and the power requirement of the whole vehicle, the occupied space is small, and the requirement of the whole vehicle is met; the transmission power is high and the noise is low; the power-driven auxiliary power device is simple to use and maintain, simple and firm in structure and stable in performance, and meets the requirement of a user on high-power auxiliary power.
Description
Technical Field
The invention relates to the technical field of power output devices, in particular to a front-end power output device of a diesel engine.
Background
With the increasing demand of people on vehicles, the demand of vehicles on auxiliary power transmitted by an engine is increasing, and in order to meet the task demand of certain vehicles, the problems and the schemes to be solved are as follows:
1. optimizing the installation position of the generator: the vehicle has greater and greater demand on the generating capacity of the generator, but the volume of the generator needs to be increased along with the increase of the generating capacity of the generator, so that the horizontal size of the engine is increased, and the overall adaptability of the engine is reduced;
2. optimizing a transmission mode: the original transmission is in a triangular belt form, and the belt drives each belt pulley, so that the transmission power stability is poor and the noise is large due to large load, a proper idler pulley needs to be arranged to increase the wrap angle, and the arrangement and installation difficulty of a gear train is large;
3. no proper fan transmission installation position exists;
4. the generator, the air-conditioning compressor and the fan in the front-end power output device need to have the characteristics of small volume and compact structure, and need to be integrally planned.
The prior art can not satisfy the index requirement of the front end power output of the whole vehicle, can not satisfy the power requirements of a fan, an air condition compressor and a generator simultaneously, and has poor working reliability and large vibration noise.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a diesel engine front-end power output device, which can effectively solve the problem of diversified power output requirements of the engine front end, provide power for a whole vehicle, provide power for an air conditioner compressor and provide power for a cooling fan, has reasonable overall layout and compact structure, and reserves larger operation space for the whole vehicle.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a power output device at the front end of a diesel engine comprises a first gear train for driving a generator and an air conditioner compressor to drive, a second gear train for driving a fan to drive separately, and a fan transmission device arranged above a crankshaft.
The technical scheme of the invention is further improved as follows: the first wheel train comprises a generator belt pulley, an idler pulley, a first wheel train poly V-belt, an air conditioner compressor belt pulley, an automatic tension pulley I and a crankshaft belt pulley as a driving wheel; the generator belt pulley and the air conditioner compressor belt pulley are in power transmission through a first wheel train poly V-belt; the first gear train poly V-belt sequentially rounds the crankshaft belt pulley, the automatic tension pulley I, the air conditioner compressor belt pulley, the idle pulley and the generator belt pulley to complete gear train transmission.
The technical scheme of the invention is further improved as follows: the second wheel train comprises a second wheel train poly V-belt, a fan transmission belt pulley, an automatic tension pulley II and a crankshaft belt pulley serving as a driving wheel; the poly-wedge belt of the second wheel train sequentially bypasses the crankshaft belt pulley, the automatic tension pulley II and the fan belt pulley to complete the wheel train transmission.
The technical scheme of the invention is further improved as follows: the fan transmission device comprises a fan mounting plate fastened on the accessory bracket through bolts, a connecting shaft arranged on the fan mounting plate, a bearing matched with the connecting shaft for power transmission, a fan belt pulley fixed on the bearing through bolts, a fan connecting disc fixed on the fan belt pulley through bolts and a second automatic tensioning wheel arranged on the fan mounting plate.
The technical scheme of the invention is further improved as follows: the V-ribbed belt of the first gear train is a V-ribbed belt.
The technical scheme of the invention is further improved as follows: the V-ribbed belt of the second gear train is a V-ribbed belt.
Due to the adoption of the technical scheme, the invention has the technical progress that:
1. the invention increases the wrap angle by reasonably arranging the idle wheel and the automatic tensioning wheel, so that the front-end power output device can meet the requirements of stable transmission and high power, has simple structure and stable performance, and realizes the requirement of a user on high-power auxiliary power.
2. According to the invention, a crankshaft belt pulley, a generator belt pulley and an air conditioner compressor belt pulley are in power transmission through a first wheel train poly V-belt; the fan belt pulley is in power transmission with the crankshaft belt pulley through a second gear train poly-wedge belt, and the fan transmission is in power transmission through a connection mode of an accessory bracket, a fan mounting plate, a connecting shaft, a bearing and a fan connecting disc; the fan transmission is driven by the second wheel train independently, so that the accuracy requirements of the parallelism and coplanarity of the whole wheel train can be effectively reduced, and the fan transmission can run more stably; the reasonable arrangement of the two gear trains can effectively and stably output the power generated by the engine.
3. The invention solves the problems that the space of the whole vehicle is limited, the arrangement space of an air conditioner compressor, a generator and a fan in a front-end wheel train is narrow, and the interference with other parts of the whole vehicle is avoided in the prior art; the wheel train needs an automatic tensioning device, so that the maintenance performance is improved; the power and transmission ratio of each accessory need to meet the requirement of the whole vehicle.
4. The invention mainly solves the problem of power output of the front-end wheel train of the diesel engine and is further suitable for the whole vehicle space
The requirement and the power requirement are met, the occupied space is small, and the requirement of the whole vehicle is met; the transmission power is high and the noise is low; simple use and maintenance and simple and firm structure.
5. The invention can effectively solve the problem of diversified power output requirements of the front end of the engine, provides power for the whole vehicle, provides power for the air conditioner compressor and provides power for the cooling fan, has reasonable integral layout and compact structure, and reserves larger operation space for the whole vehicle.
Drawings
FIG. 1 is a block diagram of the gear train of the present invention;
FIG. 2 is a view of the fan mounting structure of the present invention;
fig. 3 is a three-dimensional view of the wheel train of the present invention.
The device comprises a generator belt pulley 1, a generator belt pulley 2, an idler pulley 3, a first wheel train poly V-belt 4, an air conditioner compressor belt pulley 5, automatic tensioning wheels I and 6, a crankshaft belt pulley 7, a second wheel train poly V-belt 8, a fan transmission belt pulley 9, automatic tensioning wheels II and 10, an accessory bracket 11, a fan mounting plate 12, a connecting shaft 13, a bearing 14 and a fan connecting disc.
Detailed Description
The invention aims at the problems that the space of the whole vehicle is limited, the arrangement space of an air conditioner compressor, a generator and a fan in a front-end wheel train is narrow, and the air conditioner compressor, the generator and the fan cannot interfere with other parts of the whole vehicle in the prior art; the wheel train needs an automatic tensioning device, so that the maintenance performance is improved; the power and transmission ratio of each accessory need to meet the requirements of the whole vehicle, and the like.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, a diesel engine front end power output device comprises a first wheel train for driving a generator and an air conditioner compressor, a second wheel train for driving a fan separately, and a fan transmission device arranged above a crankshaft. The front-end power output device has the main functions of stably and effectively outputting power generated by the engine through the two gear trains at the front end, and driving the fan transmission by the second gear train independently, so that the parallelism and coplanarity precision requirements of the whole gear train can be reduced, and the fan transmission can run more stably.
The first wheel train comprises a generator belt pulley 1, an idler pulley 2, a first wheel train poly-wedge belt 3, an air conditioner compressor belt pulley 4, an automatic tension pulley I5 and a crankshaft belt pulley 6 serving as a driving wheel; the generator belt pulley 1 and the air conditioner compressor belt pulley 4 are in power transmission through a first wheel train poly V-belt 3; the first gear train poly V-belt 3 sequentially rounds the crankshaft pulley 6, the automatic tension wheel I5, the air conditioner compressor pulley 4, the idle wheel 2 and the generator pulley 1 to complete gear train transmission.
The second wheel train comprises a second wheel train poly V-belt 7, a fan transmission belt pulley 8, an automatic tension pulley II 9 and a crankshaft belt pulley 6 serving as a driving wheel; the second gear train poly V-belt 7 winds around the crankshaft pulley 6, the automatic tension pulley II 9 and the fan pulley 8 in sequence to complete gear train transmission.
As shown in fig. 2, the fan driving device includes a fan mounting plate 11 fastened to the accessory bracket 10 by bolts, a connecting shaft 12 provided on the fan mounting plate 11, a bearing 13 engaged with the connecting shaft 12 for power transmission, a fan pulley 8 fixed to the bearing 13 by bolts, a fan coupling plate 14 fixed to the fan pulley 8 by bolts, and a second automatic tension roller 9 mounted on the fan mounting plate 11.
The V-shaped V-belt in the prior art is more stable in V-belt transmission and smaller in noise.
The working principle is as follows:
as shown in fig. 3, the front wheel train adopts a 2-layer wheel train arrangement, the first wheel train drives the generator and the air-conditioning compressor, and the second wheel train drives the fan.
1) The V-shaped V-belt has the advantages that the V-belt is more stable in transmission and smaller in noise compared with a V-shaped V-belt, and the V-belt 3 and the V-belt 7 are both V-belts.
2) Facing the free end of the engine, a generator is arranged on the lower left side, an air-conditioning compressor is arranged on the lower right side, a crankshaft pulley 6 is used as a driving wheel, a generator pulley 1 and an air-conditioning compressor pulley 4 are in power transmission through a first wheel train poly V-belt 3, and an idler wheel 2 and an automatic tension wheel I5 are designed; the first gear train poly V-belt 3 sequentially rounds a crankshaft belt pulley 6, an automatic tension wheel I5, an air conditioner compressor belt pulley 4, an idler pulley 2 and a generator belt pulley 1 to complete gear train transmission.
3) Facing the free end of the engine, a fan transmission device is arranged above the crankshaft, a fan mounting plate 11 is designed because an accessory bracket 10 is not provided with a mounting position, the fan mounting plate 11 is fastened on the accessory bracket 10 through bolts, a connecting shaft 12 is designed on the fan mounting plate 11, the connecting shaft 12 is matched with a bearing 13 to transmit power, a fan belt pulley 8 is fixed on the bearing 13 through bolts, a fan connecting disc 14 is fixed on the fan belt pulley 8 through bolts, and an automatic tensioning wheel II 9 is designed to be mounted on the fan mounting plate 11; the crankshaft pulley 6 is used as a driving wheel, and the second gear train poly-wedge belt 7 sequentially bypasses the crankshaft pulley 6, the automatic tensioning wheel II 9 and the fan pulley 8 to complete gear train transmission.
In summary, the front wheel train is arranged as the first wheel train for driving the generator and the air-conditioning compressor and the second wheel train for driving the fan independently, so that the power generated by the engine can be stably and effectively output, the fan transmission is driven by the second wheel train independently, the accuracy requirements of parallelism and coplanarity of the whole wheel train can be reduced, and the fan transmission can run more stably.
Claims (6)
1. A diesel engine front end power take-off, characterized by: the fan transmission device comprises a first wheel train for driving a generator and an air conditioner compressor to transmit, a second wheel train for separately driving a fan to transmit, and a fan transmission device arranged above a crankshaft.
2. The diesel engine front-end power output apparatus according to claim 1, characterized in that: the first wheel train comprises a generator belt pulley (1), an idler pulley (2), a first wheel train poly V-belt (3), an air conditioner compressor belt pulley (4), an automatic tension pulley I (5) and a crankshaft belt pulley (6) serving as a driving wheel; the generator belt pulley (1) and the air conditioner compressor belt pulley (4) are in power transmission through a first gear train poly V-belt (3); the first gear train poly V-belt (3) sequentially bypasses a crankshaft pulley (6), an automatic tension wheel I (5), an air conditioner compressor pulley (4), an idler wheel (2) and a generator pulley (1) to complete gear train transmission.
3. The diesel engine front-end power output apparatus according to claim 1, characterized in that: the second wheel train comprises a second wheel train poly V-belt (7), a fan transmission belt pulley (8), an automatic tension wheel II (9) and a crankshaft belt pulley (6) serving as a driving wheel; the second gear train poly V-belt (7) sequentially bypasses the crankshaft belt pulley (6), the automatic tensioning wheel II (9) and the fan belt pulley (8) to complete gear train transmission.
4. The diesel engine front-end power output apparatus according to claim 1, characterized in that: the fan transmission device comprises a fan mounting plate (11) fastened on an accessory bracket (10) through bolts, a connecting shaft (12) arranged on the fan mounting plate (11), a bearing (13) matched with the connecting shaft (12) for power transmission, a fan belt pulley (8) fixed on the bearing (13) through bolts, a fan connecting disc (14) fixed on the fan belt pulley (8) through bolts and a second automatic tensioning wheel (9) installed on the fan mounting plate (11).
5. The diesel engine front-end power output apparatus according to claim 2, characterized in that: the V-ribbed belt (3) of the first gear train is a V-ribbed belt.
6. A diesel engine front end power output apparatus as set forth in claim 3, characterized in that: the V-ribbed belt (7) of the second gear train is a V-ribbed belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076687.9A CN112081659A (en) | 2020-10-10 | 2020-10-10 | Diesel engine front end power output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076687.9A CN112081659A (en) | 2020-10-10 | 2020-10-10 | Diesel engine front end power output device |
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| Publication Number | Publication Date |
|---|---|
| CN112081659A true CN112081659A (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011076687.9A Pending CN112081659A (en) | 2020-10-10 | 2020-10-10 | Diesel engine front end power output device |
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| Country | Link |
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| CN (1) | CN112081659A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596550A (en) * | 2022-10-18 | 2023-01-13 | 江铃汽车股份有限公司（Cn） | Multi-power output multifunctional application platform chassis development |
-
2020
- 2020-10-10 CN CN202011076687.9A patent/CN112081659A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596550A (en) * | 2022-10-18 | 2023-01-13 | 江铃汽车股份有限公司（Cn） | Multi-power output multifunctional application platform chassis development |
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