CN203394634U - Timing transmission device of diesel engine for automobile - Google Patents
Timing transmission device of diesel engine for automobile Download PDFInfo
- Publication number
- CN203394634U CN203394634U CN201320415995.9U CN201320415995U CN203394634U CN 203394634 U CN203394634 U CN 203394634U CN 201320415995 U CN201320415995 U CN 201320415995U CN 203394634 U CN203394634 U CN 203394634U
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- gear
- transmission device
- diesel engine
- timing
- camshaft
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Abstract
A timing transmission device of a diesel engine for an automobile comprises an oil pump gear, a crankshaft timing gear meshed with the oil pump gear, an idle gear combined part meshed with the crankshaft timing gear, an oil injection pump gear meshed with the idle gear combined part, and a gear chamber cover; the front end of a flange of the oil injection pump gear is fixedly connected with a camshaft timing belt driving wheel; the camshaft timing belt driving wheel is connected with a camshaft timing belt wheel by virtue of a timing synchronous belt; the camshaft timing belt wheel presses the shaft front end of an air inlet camshaft; the air inlet camshaft is provided with an air inlet camshaft gear; the air inlet camshaft gear is meshed with an exhaust camshaft gear combined part; the gear chamber cover is provided with a tensioner. The timing transmission device of the diesel engine for the automobile, provided by the utility model, has the characteristics of high transmission efficiency, high reliability and low working noise.
Description
Technical field
The utility model relates to transmission device, particularly a kind of diesel engine for automobile timing transmission device.
Background technique
Traditional diesel timing transmission system adopts gear drive mostly, this kind of drive because transmission efficiency is high, good reliability, low cost of manufacture extensive use.Modern High-Speed diesel engine is for solving discharge, improve power per liter, simplifying distribution device, mostly adopt the layout of four valve overhead camshafts, for realizing the compact structure layout of long-distance transmission and complete machine, some timings drive and adopt pure chain transmission, also the employing gear having and sprocket wheel combination transmission, because chaindriven manufacture cost is high and for guaranteeing that its reliability will provide good pressure lubrication environment, the equal more complicated of chain guide and automatic takeup, on transmission efficiency and noise, do not preponderate yet, in actual use, still exist some technical problems.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of diesel engine for automobile timing transmission device, has that transmission efficiency is high, a good reliability, feature that operational noise is low.For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of diesel engine for automobile timing transmission device, comprise oil pump gear, crankshaft timing gear with described oil pump gear engagement, idle gear component with described crankshaft timing gear engagement, fuel injection pump gear with described idle gear component engagement, and gear chamber cover, the front end of described fuel injection pump gear flange is fixedly connected with camshaft drive belt driving wheel, described camshaft drive belt driving wheel connects camshaft drive belt pulley by Synchronous belt, described camshaft drive belt pulley is pressed on the axle front end of the admission cam shaft that intake cam shaftgear is installed, described intake cam shaftgear and the engagement of exhaust cam shaft gear component, stretcher assembly is set on described gear chamber cover keeps described Synchronous belt to have suitable tension force.Owing to having adopted band transmission, the utlity model has the feature that noise is low, efficiency is high.
Described idle gear component is the structure that major-minor gear that the number of teeth is identical is superimposed together.Exhaust cam shaft gear component is the structure that major-minor gear that the number of teeth is identical is superimposed together.Major-minor gear can produce a relative rotation to eliminate backlash by the gear spring between web, reaches the object that reduces gear tooth noise.
Described fuel injection pump gear is straight toothed spur gear.Consider that Injection Pump axially can not bear axial force, design of gears becomes straight toothed spur gear.
Described camshaft drive belt driving wheel adopts 4 front ends that are bolted to described fuel injection pump gear flange.
Described stretcher assembly comprises automatic tensioner, the flexible compressing structure of damping that described automatic tensioner is liquid spring.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Wherein: 1-crankshaft timing gear, 2-idle gear component, 3-stretcher assembly, 4-Idle wheel component, 5-camshaft drive belt driving wheel, 6-fuel injection pump gear, 7-Synchronous belt, 8-camshaft drive belt pulley, 9-intake cam shaftgear, 10-exhaust cam shaftgear, 11-oil pump gear, 12-admission cam shaft.
Embodiment
Diesel engine for automobile timing transmission device as shown in Figure 1, crankshaft timing gear (1) and oil pump gear (11) and idle gear component (2) engagement, idle gear component (2) and fuel injection pump gear (6) engagement, the front end of fuel injection pump gear (6) flange is fixedly connected with camshaft drive belt driving wheel (5), camshaft drive belt driving wheel (5) adopts 4 front ends that are bolted to described fuel injection pump gear (6) flange, camshaft drive belt driving wheel (5) connects camshaft drive belt pulley (8) by Synchronous belt (7), camshaft drive belt pulley (8) is pressed on the axle front end of admission cam shaft (12), intake cam shaftgear (9) is installed on admission cam shaft (12), described intake cam shaftgear (9) and exhaust cam shaft gear component (10) engagement, stretcher assembly (3) is set on gear chamber cover keeps described Synchronous belt (7) to have suitable tension force.
Synchronous belt (7) adopts standard tooth form and pitch.The structure that idle gear component (2) is superimposed together for the identical major-minor gear of the number of teeth.The structure that exhaust cam shaft gear component (10) is superimposed together for the identical major-minor gear of the number of teeth.For reducing noise, idle gear component (2) and exhaust cam shaft gear component (10) are designed to the iterative structure of major-minor gear, pinion is contained on main gear shaft, with retainer ring spacing, a locating stud is respectively installed on major-minor gear web, and gear spring is supported between two pins, and the effect of spring force can make major-minor gear produce a relative corner, this structure function can be eliminated back lash between the gear being meshed with it, the noise when reducing gear transmission.
Crankshaft timing gear (1) is 2:3 with the velocity ratio of described fuel injection pump gear (6), camshaft timing driving pulley (5) is 3:4 with the velocity ratio of institute's camshaft drive belt pulley (8), intake cam shaftgear (9) is 1:1 with the gear ratio of exhaust cam shaft gear component (10), crankshaft timing gear (1) is 1:2 with the velocity ratio of intake cam shaftgear (9), and the rotating speed of guaranteeing operation process convexity wheel shaft is 1/2 of speed of crankshaft all the time.
Described fuel injection pump gear (6) is straight toothed spur gear.Consider that Injection Pump axially can not bear axial force, design of gears becomes straight toothed spur gear.
Idle wheel component (4) and automatic tensioner are supported on gear chamber cover, and Idle wheel is pressed on the slack list of Timing Belt, the flexible compressing structure of damping that automatic tensioner is liquid spring.
Claims (10)
1. a diesel engine for automobile timing transmission device, comprise oil pump gear (11), crankshaft timing gear (1) with described oil pump gear (11) engagement, idle gear component (2) with described crankshaft timing gear (1) engagement, fuel injection pump gear (6) and gear chamber cover with described idle gear component (2) engagement, it is characterized in that: the front end of described fuel injection pump gear (6) flange is fixedly connected with camshaft drive belt driving wheel (5), described camshaft drive belt driving wheel (5) connects camshaft drive belt pulley (8) by Synchronous belt (7), described camshaft drive belt pulley (8) is pressed on the axle front end of the admission cam shaft (12) that intake cam shaftgear (9) are installed, described intake cam shaftgear (9) and exhaust cam shaft gear component (10) engagement, stretcher assembly (3) is set on described gear chamber cover.
2. diesel engine for automobile timing transmission device according to claim 1, is characterized in that: the structure that described idle gear component (2) is superimposed together for the identical major-minor gear of the number of teeth.
3. diesel engine for automobile timing transmission device according to claim 1, is characterized in that: the structure that described exhaust cam shaft gear component (10) is superimposed together for the identical major-minor gear of the number of teeth.
4. according to the diesel engine for automobile timing transmission device described in claims 1 to 3 any one, it is characterized in that: described fuel injection pump gear (6) is straight toothed spur gear.
5. according to the diesel engine for automobile timing transmission device described in claims 1 to 3 any one, it is characterized in that: described camshaft drive belt driving wheel (5) adopts 4 front ends that are bolted to described fuel injection pump gear (6) flange.
6. according to the diesel engine for automobile timing transmission device described in claims 1 to 3 any one, it is characterized in that: described stretcher assembly (3) comprises automatic tensioner the flexible compressing structure of damping that described automatic tensioner is liquid spring.
7. diesel engine for automobile timing transmission device according to claim 1, is characterized in that: described crankshaft timing gear (1) is 2:3 with the velocity ratio of described fuel injection pump gear (6).
8. diesel engine for automobile timing transmission device according to claim 1, is characterized in that: described camshaft timing driving pulley (5) is 3:4 with the velocity ratio of institute's camshaft drive belt pulley (8).
9. diesel engine for automobile timing transmission device according to claim 1, is characterized in that: described intake cam shaftgear (9) is 1:1 with the gear ratio of exhaust cam shaft gear component (10).
10. diesel engine for automobile timing transmission device according to claim 1, is characterized in that: described crankshaft timing gear (1) is 1:2 with the velocity ratio of intake cam shaftgear (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415995.9U CN203394634U (en) | 2013-07-12 | 2013-07-12 | Timing transmission device of diesel engine for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415995.9U CN203394634U (en) | 2013-07-12 | 2013-07-12 | Timing transmission device of diesel engine for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394634U true CN203394634U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320415995.9U Expired - Lifetime CN203394634U (en) | 2013-07-12 | 2013-07-12 | Timing transmission device of diesel engine for automobile |
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| Country | Link |
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| CN (1) | CN203394634U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819081A (en) * | 2014-01-30 | 2015-08-05 | 铃木株式会社 | Mounting structure of auxiliary engine |
| CN105863911A (en) * | 2016-05-18 | 2016-08-17 | 奇瑞汽车股份有限公司 | Transmission system of high pressure oil pump of diesel engine and assembling method thereof |
| CN108223187A (en) * | 2018-03-19 | 2018-06-29 | 安徽全柴动力股份有限公司 | A kind of backgear room with gas oil separation structure |
-
2013
- 2013-07-12 CN CN201320415995.9U patent/CN203394634U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819081A (en) * | 2014-01-30 | 2015-08-05 | 铃木株式会社 | Mounting structure of auxiliary engine |
| CN105863911A (en) * | 2016-05-18 | 2016-08-17 | 奇瑞汽车股份有限公司 | Transmission system of high pressure oil pump of diesel engine and assembling method thereof |
| CN105863911B (en) * | 2016-05-18 | 2018-11-16 | 奇瑞汽车股份有限公司 | A kind of transmission system and its assemble method of diesel engine high-pressure oil pump |
| CN108223187A (en) * | 2018-03-19 | 2018-06-29 | 安徽全柴动力股份有限公司 | A kind of backgear room with gas oil separation structure |
| CN108223187B (en) * | 2018-03-19 | 2023-09-26 | 安徽全柴动力股份有限公司 | Rear gear chamber with oil-gas separation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |