CN202756093U - Timing gear train mechanism of motor - Google Patents
Timing gear train mechanism of motor Download PDFInfo
- Publication number
- CN202756093U CN202756093U CN 201220279581 CN201220279581U CN202756093U CN 202756093 U CN202756093 U CN 202756093U CN 201220279581 CN201220279581 CN 201220279581 CN 201220279581 U CN201220279581 U CN 201220279581U CN 202756093 U CN202756093 U CN 202756093U
- Authority
- CN
- China
- Prior art keywords
- gear
- camshaft
- compression pump
- timing
- idle pulley
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Gear Transmission (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a timing gear train mechanism of a motor. The meshing relationships of all gears are as follows: a crankshaft gear is meshed with an idler gear and arranged below the idler gear, the left side of the idler gear is meshed with a fuel injection pump gear, the right side of the idler gear is meshed with a camshaft gear, a compression pump gear is meshed with a compression pump drive gear, the compression pump drive gear is coaxial with the camshaft gear, and the compression pump drive gear is fixed with the camshaft gear through bolts. Consistency of the crankshaft gear, the camshaft gear, the fuel injection pump gear, the compression pump gear and the compression pump drive gear in normal modules, pressure angles and helical angles of the upper gear of a reference cylinder is guaranteed. The timing gear train mechanism of the motor is simple and compact in structure, capable of satisfying the timing of the fuel injection of the motor, and at the same time capable of driving a gear drive compression pump. The key lies in that the gears of a timing gear train are utilized to drive a compression pump through a camshaft. The structure is applicable to be used in a preposed gear train of a motor and a camshaft overhead valve mechanism.
Description
Technical field
The utility model engine structure technology is specifically related to a kind of transmission device by the rotation of the gear driven compression pump in the timing gear train.
Background technique
In engine structure, the effect of timing gear is the port timings when guaranteeing engine running, make intake valve and exhaust valve unlatching, close consistent with piston movement.The timing gear train of diesel engine generally is comprised of crankshaft gear, fuel injection pump gear, camshaft gear wheel, idle pulley gear etc. at present.Constantly perfect along with the development of engine technology and car load coupling, the configuration of motor also constantly increases.The timing gear train of motor also utilizes timing gear to drive other power source annex except guaranteeing motor injection timing function at present, and for example the gear transmission compression pump with better reliability replaces the bel-drivenn air compressor.Air compressor is that to cause the motor external form to take up room very large by the defective of belt pulley transmission, and belt transmission has transmission loss.The utility model proposes a kind of transmission system of utilizing the moving air compressor of timing gear frenulum for this reason, make the compacter transmission efficiency with improving motor of motor external form.
Summary of the invention
The purpose of this utility model is to propose a kind of transmission device by the rotation of the gear driven compression pump in the timing gear train, is used for the valve mechanism of engine cam overhead.
Below in conjunction with accompanying drawing structural principle of the present utility model is described.Engine timing gear is that mechanism comprises: crankshaft gear, idle pulley gear, camshaft gear wheel, fuel injection pump gear, compression pump driving gear, and each gear meshing relation is in the train of gearings: crankshaft gear and the engagement of idle pulley gear and the below that places idler gear to take turns; The left side of idle pulley gear and fuel injection pump gear engagement, the right side of idle pulley gear and camshaft gear wheel engagement; The compression pump gear is meshed with the compression pump driving gear, and the compression pump driving gear is coaxial and by bolt two gears are fixed with camshaft gear wheel.The helix angle of tooth is all guaranteed unanimously on the normal module of crankshaft gear, idle pulley gear, camshaft gear wheel, fuel injection pump gear, compression pump gear, compression pump driving gear, pressure angle, the calibration cylinder.The gear that key is to drive compression pump is to drive with the coaxial compression pump driving gear of camshaft gear wheel by one, is actually by camshaft and drives compression pump.
Because the effect of timing gear is the port timings when guaranteeing engine running, make intake valve and exhaust valve unlatching, close consistent with piston movement.So the contact points of each gear in the engine timing gear system has characterized the phase place of each transmission shaft, so the center of crankshaft gear and idle pulley gear engaged section is respectively equipped with timing marks; The center of fuel injection pump gear and idle pulley gear engaged section is respectively equipped with timing marks; The center of camshaft gear wheel and idle pulley gear engaged section is respectively equipped with timing marks, when engine assembly, the first cylinder piston is positioned at compression top center, three timing marks of idle pulley gear respectively with crankshaft gear, camshaft gear wheel, fuel injection pump gear with timing marks corresponding.
Characteristics of the present utility model are, and are simple in structure, compact, can satisfy the motor injection timing, again the compression pump of driven gear transmission simultaneously.Key is to utilize the gear in the timing gear train to drive compression pump by camshaft.This structure is adapted at using in the valve mechanism of engine behind front wheel train of gearings, camshaft overhead.
Description of drawings
Fig. 1 is that the utility model timing gear architecture concerns sketch.
Fig. 2 is the three-dimensional sketch of each gear separate structure among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment principle of the present utility model and structure are further explained.Need to prove that the present embodiment is narrative, but not determinate, do not limit protection domain of the present utility model with this embodiment.
Engine timing gear is mechanism, and its structure is the below that crankshaft gear 1 and idle pulley gear 2 meshed and placed the idler gear wheel; The left side of idle pulley gear and fuel injection pump gear 4 engagements, the right side of idle pulley gear and camshaft gear wheel 3 engagements; Compression pump gear 5 is meshed with compression pump driving gear 6; Compression pump driving gear 6 is coaxial and by bolt 7 two gears are fixed (such as Fig. 2) with camshaft gear wheel.Three parameters such as helix angle of tooth are all guaranteed unanimously on the normal module of 6 gears such as crankshaft gear, idle pulley gear, camshaft gear wheel, fuel injection pump gear, compression pump gear, compression pump driving gear, pressure angle, the calibration cylinder, guarantee the accurate engagement of its realization.The center of crankshaft gear and idle pulley gear engaged section is respectively equipped with timing marks A; Fuel injection pump gear 4 is respectively equipped with timing marks B with the center of idle pulley gear engaged section; The center of camshaft gear wheel and idle pulley gear engaged section is respectively equipped with timing marks C(such as Fig. 1).During assembling, the first cylinder piston is positioned at compression top center, three timing marks of idle pulley gear respectively with crankshaft gear, camshaft gear wheel, fuel injection pump gear with timing marks corresponding.The number of teeth of camshaft gear wheel and fuel injection pump gear is two times of the described crankshaft gear number of teeth.
For the present embodiment, 1 timing marks that crankshaft gear, fuel injection pump gear, 3 gears of camshaft gear wheel respectively have, and 3 timing marks having of idle pulley gear, mark with different " blind hole " numbers at the root (mark position) of each gear.
The number of teeth of fuel injection pump gear, camshaft gear wheel is 50; The number of teeth of crankshaft gear is 25.Crankshaft gear is the source moving gear of timing gear train mechanism, and crankshaft gear rotates two circles, and fuel injection pump gear and camshaft gear wheel rotate one and enclose under the drive of idle pulley gear, guarantees that motor finishes four working strokes.The number of teeth of compression pump driving gear is 54, and the number of teeth of compression pump gear is 31, and when crankshaft gear took two turns, the compression pump gear rotated 54/31 circle.
Claims (3)
1. engine timing gear is mechanism, comprises crankshaft gear, idle pulley gear, camshaft gear wheel, fuel injection pump gear, compression pump driving gear, it is characterized in that crankshaft gear (1) and idle pulley gear (2) mesh and place the below of idler gear wheel; The left side of idle pulley gear and fuel injection pump gear (4) engagement, the right side of idle pulley gear and camshaft gear wheel (3) engagement; Compression pump gear (5) is meshed with compression pump driving gear (6); Compression pump driving gear (6) is coaxial and by bolt (7) two gears are fixed with camshaft gear wheel; The helix angle of tooth is all guaranteed unanimously on the normal module of crankshaft gear, idle pulley gear, camshaft gear wheel, fuel injection pump gear, compression pump gear, compression pump driving gear, pressure angle, the calibration cylinder.
2. be mechanism according to engine timing gear claimed in claim 1, it is characterized in that being respectively equipped with timing marks at the center of described crankshaft gear (1) and idle pulley gear (2) engaged section; Described fuel injection pump gear (4) is respectively equipped with timing marks with the center of idle pulley gear engaged section; Described camshaft gear wheel (3) is respectively equipped with timing marks with the center of idle pulley gear engaged section, during assembling, the first cylinder piston is positioned at compression top center, three timing marks of described idle pulley gear (2) respectively with crankshaft gear, camshaft gear wheel, fuel injection pump gear with timing marks corresponding.
3. be mechanism according to claim 1 or 2 described engine timing gears, the number of teeth that it is characterized in that described camshaft gear wheel (3) and fuel injection pump gear (4) is two times of described crankshaft gear (1) number of teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279581 CN202756093U (en) | 2012-06-14 | 2012-06-14 | Timing gear train mechanism of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279581 CN202756093U (en) | 2012-06-14 | 2012-06-14 | Timing gear train mechanism of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756093U true CN202756093U (en) | 2013-02-27 |
Family
ID=47735280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220279581 Expired - Lifetime CN202756093U (en) | 2012-06-14 | 2012-06-14 | Timing gear train mechanism of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184846A (en) * | 2018-10-09 | 2019-01-11 | 广西玉柴机器股份有限公司 | Simple gear transmitting is to timing mechanism and its operating method |
| CN110594013A (en) * | 2019-09-19 | 2019-12-20 | 潍柴动力股份有限公司 | Gear train and engine |
-
2012
- 2012-06-14 CN CN 201220279581 patent/CN202756093U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184846A (en) * | 2018-10-09 | 2019-01-11 | 广西玉柴机器股份有限公司 | Simple gear transmitting is to timing mechanism and its operating method |
| CN110594013A (en) * | 2019-09-19 | 2019-12-20 | 潍柴动力股份有限公司 | Gear train and engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3070289B1 (en) | Rotary engine | |
| CN102748128B (en) | Timing gear housing gear train for common-rail engine | |
| CN102720585A (en) | Timing gear chamber wheel train of engine | |
| CN202628275U (en) | Straight shaft driven internal-combustion engine device | |
| US20080188340A1 (en) | Power train for motor vehicles or the like | |
| CN202756093U (en) | Timing gear train mechanism of motor | |
| CN203655433U (en) | Engine rear gear driving system | |
| CN203603996U (en) | Engine timing gear train and engine | |
| CN201763437U (en) | Piston direct driving supercharge engine | |
| CN206280118U (en) | Drive the timing gear train of oil pump and compression pump | |
| CN106593562A (en) | Timing gear system structure for driving oil pump and compression pump | |
| WO2014037758A8 (en) | Variable stroke mechanism for internal combustion engine | |
| CN204900746U (en) | Crankshaft timing gear | |
| CN203394634U (en) | Timing transmission device of diesel engine for automobile | |
| CN202756092U (en) | Timing gear chamber gear train of two-valve common rail engine | |
| CN102705119B (en) | Transmission and connection structure of electrical control high pressure common rail pump | |
| CN102374025A (en) | Internal combustion engine composed of racks, ratchet wheels and semi-gears | |
| WO2009129678A1 (en) | A control device of a ratchet-wheel type rotary engine | |
| CN204344267U (en) | A kind of engine rear end train of gearings | |
| CN201292885Y (en) | Gearing unit of engine | |
| CN204572297U (en) | Centralized gear transmission of diesel engine system | |
| CN201818366U (en) | Piston type direct-drive engine | |
| CN207420714U (en) | The diesel engine double-layered tooth train of high-pressure oil pump rotating speed switching can be achieved | |
| CN202370657U (en) | Parallel-connection crankshaft engine | |
| CN206256943U (en) | Engine variable timing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Timing gear train mechanism of motor Effective date of registration: 20190612 Granted publication date: 20130227 Pledgee: Lingyuan steel enterprise limited liability company Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd. Registration number: 2019210000021 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |