CN102032081B - Direct drive type fuel transferring pump system - Google Patents
Direct drive type fuel transferring pump system Download PDFInfo
- Publication number
- CN102032081B CN102032081B CN2009103079207A CN200910307920A CN102032081B CN 102032081 B CN102032081 B CN 102032081B CN 2009103079207 A CN2009103079207 A CN 2009103079207A CN 200910307920 A CN200910307920 A CN 200910307920A CN 102032081 B CN102032081 B CN 102032081B
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- Prior art keywords
- main shaft
- shaft assembly
- pump
- transmission main
- oil
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- Expired - Fee Related
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Abstract
The invention discloses a direct drive type fuel transferring pump system which comprises a diesel engine and a gear pump, wherein a cam shaft of the diesel engine is provided with a drive disk, a transmission main shaft assembly is fixed on the drive disk, the middle of the main shaft assembly is vertically sleeved and fixed with a drive wheel and a driven wheel matched and connected with the drive wheel in a transmission manner, the middle section of the main shaft assembly is provided with a collar and a transmission mechanism shell for closing the drive wheel and the driven wheel, a rotating shaft of the driven wheel penetrates through the transmission mechanism shell to enter the gear pump to become a drive shaft of a drive gear in a pair of rotary gears of the pump. The cam shaft of the engine is used as a power source, a set of connecting device drives a speed reducer to drive a fuel conveying pump to ensure that the diesel engine can be started without power, thus the number of motors or miniature power generators for driving the diesel engine fuel conveying pump is reduced, the reliability and the compactness of the diesel are improved, and the economic benefit is improved.
Description
Technical field
The present invention relates to a kind of fuel delivery equipment, especially a kind of directly driving type fuel delivery pumping system.
Background technique
The diesel engine whole system is made up of low pressure oil circuit (fuel tank, oil transfer pump, fuel filter and low pressure fuel pipe), high-pressure oil passage (Injection Pump, high-pressure oil pipe, oil sprayer) and regulating system (centrifugal governor, auto-supply advancing device), and wherein oil transfer pump is the constituent element of fuel supply system.The fuel feed process is following: oily diesel fuel tanks is equipped with the diesel oil through deposition and filtering; Oil transfer pump sucks the diesel oil in the diesel fuel tanks and pump; Through getting into Injection Pump behind the filter decontamination; High-pressure diesel from Injection Pump output gets into oil sprayer through high-pressure oil pipe, and is sprayed into the firing chamber by oil sprayer, forms inflammable mixture with air mixing.
Usually use gear pump as fuel oil pump, its working principle is that a pair of swiveling gear is housed in the pump housing; An active, one is passive, relies on being meshing with each other of two gears; Divide independently A, two parts of B the whole active chamber in the pump, A is for going into to inhale the chamber, and B is a discharge side.Driving gear drives the driven gear rotation during pump running, and A just forms parital vacuum in the suction side when toothization is thrown off in meshing, and liquid is inhaled into.The liquid that is inhaled into is full of each tooth paddy of gear and takes to and discharge side B, and liquid was extruded when gear got into engagement, forms highly pressurised liquid and outside the exhaust port excavationg pump of pump.
But diesel engine is wanted proper functioning at present; No matter be the gear pump used always as oil transfer pump, still rotor oil transfer pump etc., the external motor that special use all need be set drives fuel oil pump; If open-air, generator set also must use the small power generation unit for it power supply to be provided.So not only waste energy, use inconvenience, and reliability is also poor.
Summary of the invention
The objective of the invention is: provide with the DENG camshaft to be driving source, to save that external motor is made the power source of gear pump, had compact structure, not only a kind of directly driving type fuel delivery pumping system of energy saving but also functional reliability.
The objective of the invention is to realize through following technological scheme:
A kind of directly driving type fuel delivery pumping system; Include DENG and gear pump; It is characterized in that, on the camshaft of DENG, drive plate is installed, fixing transmission main shaft assembly on this drive plate; The vertical suit of medium position at this main shaft assembly is fixed with the follower that driving wheel reaches and this driving wheel transmission is connected; Be provided with the driving mechanism housing of cover bag, the said driving wheel of sealing and follower in the stage casing of this main shaft assembly, the rotating shaft of this follower is passed said driving mechanism housing and is got into gear pump, becomes the live axle of driving gear in a pair of swiveling gear of this pump.
The driving mechanism housing of said cover bag, sealing driving wheel and follower is to be formed by forward and backward two box body combinations that cover is wrapped on the main shaft assembly, and respectively the forward and backward oil seal cover of the said shell cavity of sealing is set in the external port of two casings.
The said transmission main shaft assembly that is fixedly connected with drive plate is equipped with telescopic shaft at the front end of this main shaft assembly, realizes being fixedly connected of transmission main shaft assembly and drive plate through telescopic shaft.
Said transmission main shaft assembly; Include and place in the said driving mechanism housing, be sleeved on transmission main shaft front end rear portion, be close to the oil sealing at Front oil seal lid back; Long oil envelope, the suit that be sleeved on the outer transmission main shaft of back piece casing, its front end is compressed by the Rear oil seal lid is fixed on the afterbody flange that transmission main shaft afterbody, its front end compress long oil sealing end, and in said driving mechanism housing, be sleeved on the transmission main shaft cover on the transmission main shaft, between said oil sealing and long oil seal.
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
With the DENG camshaft is driving source, drives transmission main shaft assembly of the present invention, drives follower through the driving wheel that is installed on this transmission main shaft assembly, through the rotation of driving gear in the rotating band gear pump of follower shaft, thus the work of realization gear.Because in system of the present invention, save the power source of external motor as gear pump, saved the energy improved diesel engine working efficiency, realized the compactedness of the driving mechanism shell construction of cover bag, sealing driving wheel and follower having reduced system cost.
Description of drawings
Fig. 1 is the utility model general assembly schematic representation.
Fig. 2 is drive plate and driving shaft assembly vertical profile structural representation.
Fig. 3 is for being positioned at the cross-sectional structural representation of A-A at driving wheel place on the driving shaft assembly.
Fig. 4 be gear pump with the driving mechanism housing in follower shaft be connected part sectioned view.
Reference character: the 1st, pump shaft assembly, 1-1 are followers, and 1-2 is a driven shaft, and 1-3 is the location lid, and 1-4 is a pipe flange, 1-5 is a gear pump; The 2nd, preceding casing, the 3, the 4th, porous plug, ventilative cap, the 5th, driving shaft assembly, 5-1 are drive plates, 5-2 is a telescopic shaft; 5-3 is a main shaft, and 5-4 is an oil seal cover, and 5-5 is an oil sealing, and 5-6 is a cover, and 5-7 is that driving wheel, 5-8 are the long oil envelopes; 5-9 is a flange, and 5-10 is a gland, the 6th, and rear box, the 7th, oil ga(u)ge, the 8th, housing.
Embodiment
As depicted in figs. 1 and 2; A kind of directly driving type fuel delivery pumping system; Include DENG and gear pump 1-5, drive plate 5-1 is installed on the camshaft of DENG, fixing transmission main shaft assembly 5 on this drive plate 5-1; The vertical suit of medium position at this main shaft assembly 5 is fixed with the follower 1-1 that driving wheel 5-7 reaches and this driving wheel transmission is connected; Be provided with the driving mechanism housing 8 of cover bag, the said driving wheel of sealing and follower in the stage casing of this main shaft assembly, the rotating shaft 1-2 of this follower 1-1 passes said driving mechanism housing 8 and gets into gear pump 1-5, becomes the live axle of driving gear in a pair of swiveling gear of this pump.Telescopic shaft 5-2 one end of driving shaft assembly 5 connects drive plate 5-1 through elastic cylindrical pin; The other end is connected with the outstanding position of main shaft 5-3 end through elastic cylindrical pin; In the cavity of casing 6 and rear box 2 formation the driving wheel 5-7 that is meshed with the follower 1-1 of pump shaft assembly 1 is installed before the main shaft 5-3 middle part; Wherein, the mounting hole of rear box 2 is equipped with the oil seal cover 5-4 that is connected with rear box 2 through bolt with main shaft 5-3 contact position, is with oil sealing 5-5 in the oil seal cover 5-4; Oil sealing 5-5 lower end is cover 5-6, and the both sides of cover 5-6 are equipped with angular contact ball bearing; The mounting hole of preceding casing 6 is equipped with through bolt and the oil seal cover 5-4 that preceding casing 6 is connected with main shaft 5-3 contact position, is with long oil envelope 5-8 in the oil seal cover 5-4, and long oil envelope 5-8 lower end is cover 5-6, and cover 5-6 contacts with the driving wheel 5-7 that is arranged at cavity center.As shown in Figure 3; Follower 1-1 is installed on forward and backward casing 6,2 and forms on the interior pump shaft assembly 1 of cavity; It is connected with driven shaft 1-2 one end of pump shaft assembly 1 through Cock screw; The driven shaft 1-2 the other end is connected with gear pump 1-5, between follower 1-3 and gear pump 1-5, is provided with an end through bolted location lid.In addition, gear pump on oil pipe, pipe flange 1-4 is installed all, porous plug 3 and porous plug 4 are installed at the oil outlet tube place, be provided with oil ga(u)ge 7 at the fuel tank place.
Working procedure of the present invention is following:
Drive plate 51 is with after the camshaft of motor is connected, ato unit, and the camshaft of motor drives
Drive plate 5-1 rotates, and the telescopic shaft 5-2 that is connected with drive plate 5-1 drives the driving wheel 5-7 that is installed on the main shaft 5-3 and rotates.Because driving wheel 5-7 is meshed with follower 1-1; So follower 1-1 also rotates; Follower 1-1 drives connected driven shaft 1-2 and rotates together; Therefore the gear pump on the driven shaft 1-2 constantly sucks the diesel oil in the diesel fuel tanks and pump with regard to entry into service, through getting into Injection Pump behind the filter decontamination.High-pressure diesel from Injection Pump output gets into oil sprayer through high-pressure oil pipe 1, and is sprayed into the firing chamber by oil sprayer, forms inflammable mixture with air mixing.Like this, fuel transfer pump constantly provides fuel oil for motor, thereby keeps the work of motor.
Claims (2)
1. directly driving type fuel delivery pumping system; Include DENG and gear pump (1-5); Drive plate (5-1) is installed on the camshaft of DENG; Go up a fixing transmission main shaft assembly (5) at this drive plate (5-1); The vertical suit of medium position at this main shaft assembly (5) is fixed with driving wheel (5-7), and this driving wheel and follower (1-1) transmission is connected, and is provided with the driving mechanism housing (8) of cover bag and sealing driving wheel and follower in the stage casing of this main shaft assembly; The rotating shaft (1-2) of this follower (1-1) is passed said driving mechanism housing (8) and is got into gear pump (1-5), becomes the live axle of driving gear in a pair of swiveling gear of this pump; The driving mechanism housing (8) of said cover bag and sealing driving wheel and follower; Be to combine, and respectively the forward and backward oil seal cover (5-4) of sealing said housing (8) cavity be set in the external port of two casings by forward and backward two casings (2,6) that cover is wrapped on the main shaft assembly; It is characterized in that; Said transmission main shaft assembly (5) includes and is arranged in the said driving mechanism housing (8) and is sleeved on transmission main shaft (5-3) front end rear portion and is close to the oil sealing (5-5) at Front oil seal lid (5-4) back; Be sleeved on the long oil envelope (5-8) that piece casing outer transmission main shaft (5-3) in back is gone up and its front end is compressed by Rear oil seal lid (5-4); Suit is fixed on the afterbody flange (5-9) that transmission main shaft (5-3) afterbody and its front end compress long oil envelope (5-8) tail end, and is positioned at said driving mechanism housing (8) and is sleeved on transmission main shaft (5-3) and go up and be positioned at said oil sealing (5-5) and long oil seals the transmission main shaft cover (5-6) between (5-8).
2. according to the described directly driving type fuel delivery of claim 1 pumping system; It is characterized in that; The said transmission main shaft assembly (5) that is fixedly connected with drive plate (5-1); Front end at this main shaft assembly (5) is equipped with telescopic shaft (5-2), realizes being fixedly connected of transmission main shaft assembly (5) and drive plate (5-1) through telescopic shaft (5-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103079207A CN102032081B (en) | 2009-09-29 | 2009-09-29 | Direct drive type fuel transferring pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103079207A CN102032081B (en) | 2009-09-29 | 2009-09-29 | Direct drive type fuel transferring pump system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102032081A CN102032081A (en) | 2011-04-27 |
| CN102032081B true CN102032081B (en) | 2012-07-04 |
Family
ID=43885419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103079207A Expired - Fee Related CN102032081B (en) | 2009-09-29 | 2009-09-29 | Direct drive type fuel transferring pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102032081B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6976476B1 (en) * | 2004-09-21 | 2005-12-20 | International Engine Intellectual Property Company, Llc | Fuel pump drive system in an internal combustion engine |
| CN201635890U (en) * | 2009-09-29 | 2010-11-17 | 资阳蜀达科技有限公司 | Direct-drive-type fuel-oil transfer pump |
-
2009
- 2009-09-29 CN CN2009103079207A patent/CN102032081B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6976476B1 (en) * | 2004-09-21 | 2005-12-20 | International Engine Intellectual Property Company, Llc | Fuel pump drive system in an internal combustion engine |
| CN201635890U (en) * | 2009-09-29 | 2010-11-17 | 资阳蜀达科技有限公司 | Direct-drive-type fuel-oil transfer pump |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平11-257179A 1999.09.21 |
| JP特开平8-270410A 1996.10.15 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102032081A (en) | 2011-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150929 |
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| EXPY | Termination of patent right or utility model |