CN110725766A - High-pressure oil pump driving transmission device of single-cylinder diesel engine, mounting method and application - Google Patents
High-pressure oil pump driving transmission device of single-cylinder diesel engine, mounting method and application Download PDFInfo
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- CN110725766A CN110725766A CN201910919727.2A CN201910919727A CN110725766A CN 110725766 A CN110725766 A CN 110725766A CN 201910919727 A CN201910919727 A CN 201910919727A CN 110725766 A CN110725766 A CN 110725766A
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- flange
- oil pump
- pressure oil
- drive
- diesel engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/48—Assembling; Disassembling; Replacing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
In order to solve the problems of complex structure and inconvenient maintenance of a high-pressure oil pump driving transmission device of a single-cylinder diesel engine in the prior art, the invention provides the high-pressure oil pump driving transmission device of the single-cylinder diesel engine, an installation method and application, wherein the high-pressure oil pump driving transmission device comprises a driving input part, an intermediate transmission part and a driving output part which are used for connecting the output end of the high-pressure oil pump of the single-cylinder diesel engine, and is characterized in that the intermediate transmission part comprises an intermediate flange, a sheet type coupling and a connecting flange; one end of the middle flange is detachably connected with the output end of the driving input part; the other end of the middle flange is connected with one end of the plate coupling; the other end of the plate coupling is connected with one end of the connecting flange; the other end of the connecting flange is connected with the input end of the driving output part. The structure of the invention adopts a modular structure in a disassembly and assembly mode, and the assembly is carried out first, so that the maintenance is convenient and the reliability is high.
Description
Technical Field
The invention belongs to the technical field of diesel engines, and particularly relates to a driving transmission device for a high-pressure oil pump of a single-cylinder diesel engine, an installation method and application.
Background
As diesel engines have been developed to be large, high-speed, and precise, the cost for developing diesel engines has been increasing. In the development process, performance tests of a whole machine prototype are required to verify the reasonability of the design and provide an optimization direction, if the complete diesel engine whole prototype, particularly a large-scale high-power diesel engine, is directly produced for testing, the development cost is greatly increased, and the cost can be effectively saved by developing a single-cylinder diesel engine of a corresponding model for testing. Due to the difference of structures such as a machine body and the like, the installation mode of a high-pressure oil pump of the single-cylinder diesel engine is different from that of the whole engine, so that a special high-pressure oil pump driving transmission device needs to be designed for connecting a driving gear and the high-pressure oil pump.
The design of the high-pressure oil pump driving transmission device of the single-cylinder diesel engine needs to consider the following aspects:
1. when the diesel engine runs at a high speed, because a certain coaxiality error exists between the driving gear and the driving shaft of the high-pressure oil pump in the radial direction, the condition of uneven rotating speed is easily generated, the performance test result of the diesel engine is influenced, and even the high-pressure oil pump can be damaged;
2. the high-pressure oil pump driving transmission device of the single-cylinder diesel engine needs to consider a proper dismounting mode during design, so that the phenomenon that the high-pressure oil pump driving transmission device cannot play a normal role due to an unreasonable dismounting mode is avoided;
3. the middle of the high-pressure oil pump driving transmission device is composed of a plurality of parts, and the phenomenon of unstable transmission can occur.
The existing method comprises the following steps: light-weight common rail high-pressure oil pump connection driving structure (201820290489.4) comprises a high-pressure oil pump, a connecting flange, an oil pump end transmission block, a middle transmission block, an engine end transmission block and a noise reduction limiting pad. The defects that the scheme adopts integral installation and is inconvenient to maintain. Furthermore, the high-pressure oil pump transmission shaft and drive shaft sleeve structure (application number: 201220033282.1) comprises a transmission shaft and a drive shaft sleeve for driving the transmission shaft, wherein a gear shaft of the drive shaft sleeve is in inserted and embedded type meshing connection with a gear hub of the transmission shaft. The defects are that the sealing performance requirement of the structure of the scheme is high, and the installation and the maintenance are inconvenient.
Therefore, the high-pressure oil pump driving transmission device of the existing single-cylinder diesel has the problem of complex structure, and is inconvenient to maintain due to the adoption of an integrally-installed assembly mode.
Disclosure of Invention
The invention provides a high-pressure oil pump driving transmission device of a single-cylinder diesel engine, an installation method and application, aiming at solving the problems of complex structure and inconvenient maintenance of the high-pressure oil pump driving transmission device of the single-cylinder diesel engine in the prior art.
In order to achieve the purpose, the invention adopts the specific scheme that: a single cylinder diesel engine high pressure oil pump drives the drive unit, including drive input part, middle drive division and drive output part used for connecting the single cylinder diesel engine high pressure oil pump output end, characterized by that, the said middle drive division includes the middle flange, slice type coupling and connects the flange; one end of the middle flange is detachably connected with the output end of the driving input part; the other end of the middle flange is connected with one end of the plate coupling; the other end of the plate coupling is connected with one end of the connecting flange; the other end of the connecting flange is connected with the input end of the driving output part.
The drive input includes an active flange; the driving flange is connected with an output shaft of the high-pressure oil pump; the driving flange is connected with the output shaft of the high-pressure oil pump through a taper hole, and the part of the output shaft of the high-pressure oil pump, which exceeds the driving flange, is provided with external threads; the external thread is provided with a fixing nut.
The drive output part comprises a flange shaft and a drive gear; wherein, one end of the flange shaft is connected with the connecting flange; the other end of the flange shaft is connected with a driving gear; and the connecting flange is provided with a unilateral screw for fastening the connecting flange.
The installation method of the driving transmission device of the high-pressure oil pump of the single-cylinder diesel engine is characterized in that when the driving transmission device is installed, the driving input part, the intermediate transmission part and the driving output part are assembled in sequence, and then the driving input part, the intermediate transmission part and the driving output part are connected together.
Has the advantages that: the invention can realize the purpose of driving the high-pressure oil pump when the single-cylinder diesel engine is subjected to a performance test. Because radially install the part more, cause during the installation that certain axiality error exists between high-pressure oil pump drive end axle and the flange axle that drive gear is connected, can eliminate this error through the compensator of chip coupling and cause the influence to avoid the production of transmission inhomogeneous and unstable problem of operation. The structure of the invention adopts a modular structure in a disassembly and assembly mode, and the assembly is carried out first, so that the maintenance is convenient and the reliability is high.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be described below, wherein:
FIG. 1 is a cross-sectional view of a structural assembly of the present invention.
FIG. 2 is a schematic view of the partial assembly structure of the present invention.
In the figure: 1. a high-pressure oil pump; 2. an active flange; 3. a flange sheet; 4. the device comprises an intermediate flange, 5, a sheet coupling, 6, a connecting flange, 7, a flange shaft, 8, a driving gear, 9, a compensating plate, 10, a fixing nut, 11 and a unilateral screw.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 and 2, the driving transmission device for the high-pressure oil pump of the single-cylinder diesel engine comprises a driving flange 2, a flange plate 3, an intermediate flange 4, a plate coupling 5, a connecting flange 6 and a flange shaft 7.
The device structure and installation process are described below.
The first part is the drive input portion, including initiative flange 2, flange piece 3 and 1 drive axle head of high-pressure oil pump, the through-hole in the middle of the flange piece 3 with 2 bosss of initiative flange cooperate, 1 drive axle head of high-pressure oil pump passes the through-hole in the middle of the initiative flange 2, 1 drive axle head interlude of high-pressure oil pump is the frustum of outside gradually reducing, cooperatees with the taper hole of the middle gradually reducing of initiative flange 2, 1 drive axle head of high-pressure oil pump surpasss the axle section of 2 middle holes of initiative flange has the screw thread, uses fixation nut 10 will 1 drive axle head of high-pressure oil pump, flange piece 3, the consolidation of initiative flange 2.
The second part is a middle transmission part and comprises a middle flange 4, a plate coupling 5 and a connecting flange 6, wherein the middle flange 4 and the connecting flange 6 are respectively fixedly connected with the compensating plates 9 on the left side and the right side of the plate coupling 5 through bolts and nuts.
The third part is a driving output part and comprises a flange shaft 7 and a driving gear 8, a screw hole corresponding to the driving gear 8 is formed in the disc end of the flange shaft 7, and the flange shaft and the driving gear are fixedly connected through a screw.
The driving shaft end of the high-pressure oil pump 1 is connected with the driving gear 8, and the driving transmission device mounting part structure of the high-pressure oil pump 1 is sequentially composed of a driving flange 2, a flange plate 3, a middle flange 4, a plate type coupler 5, a connecting flange 6 and a flange shaft 7. The driving flange 2 and the flange sheet 3 are fixedly connected with the driving shaft end of the high-pressure oil pump; the driving flange 2 is fixedly connected with the middle flange 4; the plate coupling 5 is respectively fixedly connected with the middle flange 4 and the connecting flange 6; the disc end of the flange shaft 7 is fixedly connected with the driving gear, the other end of the flange shaft 7 is a cylindrical end shaft, and the cylindrical end shaft penetrates through the connecting flange 6 and then is screwed down through a single-side screw 11 of the connecting flange 6 to enable a through hole of the connecting flange 6 to be contracted, so that the cylindrical end shaft of the flange shaft 7 is clamped.
The high-pressure oil pump driving transmission device between the high-pressure oil pump 1 and the driving gear 8 can be formed through the installation operation, and the purpose of intermediate transmission between the high-pressure oil pump 1 and the driving gear 8 is achieved.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily change or replace the present invention within the technical scope of the present invention. Therefore, the protection scope of the present invention is subject to the protection scope of the claims.
Claims (6)
1. A single cylinder diesel engine high pressure oil pump drives the drive unit, including drive input part, middle drive part and drive output part used for connecting the single cylinder diesel engine high pressure oil pump output end, characterized by that, the said middle drive part includes the middle flange (4), the lamellar coupling (5) and connects the flange (6);
one end of the middle flange (4) is detachably connected with the output end of the driving input part; the other end of the middle flange (4) is connected with one end of the plate coupling (5); the other end of the plate coupling (5) is connected with one end of the connecting flange (6); the other end of the connecting flange (6) is connected with the input end of the driving output part.
2. The drive transmission device of the high-pressure oil pump of the single-cylinder diesel engine according to claim 1, characterized in that: and a compensating plate (9) is arranged between the plate coupling (5) and the intermediate flange (4) and between the plate coupling and the connecting flange (6).
3. The drive transmission device of the high-pressure oil pump of the single-cylinder diesel engine according to claim 1, characterized in that: the drive input comprises a driving flange (2); the driving flange (2) is connected with an output shaft of the high-pressure oil pump (1); the driving flange (2) is connected with an output shaft of the high-pressure oil pump (1) through a taper hole, and an external thread is arranged on the part of the output shaft of the high-pressure oil pump (1) exceeding the driving flange (2); the external thread is provided with a fixing nut (10).
4. The drive transmission device of the high-pressure oil pump of the single-cylinder diesel engine according to claim 1, characterized in that: the drive output part comprises a flange shaft (7) and a drive gear (8);
wherein, one end of the flange shaft (7) is connected with the connecting flange (6); the other end of the flange shaft (7) is connected with a driving gear (8); the connecting flange (6) is provided with a unilateral screw (11) for fastening the connecting flange (6).
5. A method of assembling a drive transmission for a high pressure oil pump of a single cylinder diesel engine as set forth in claim 1, wherein the drive input portion, the intermediate transmission portion and the drive output portion are assembled in order at the time of assembly, and then the drive input portion, the intermediate transmission portion and the drive output portion are connected together.
6. Use of a high-pressure oil pump drive transmission of a single-cylinder diesel engine according to claim 1, characterized by the use of a high-pressure oil pump drive transmission during performance tests of a single-cylinder diesel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919727.2A CN110725766A (en) | 2019-09-26 | 2019-09-26 | High-pressure oil pump driving transmission device of single-cylinder diesel engine, mounting method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919727.2A CN110725766A (en) | 2019-09-26 | 2019-09-26 | High-pressure oil pump driving transmission device of single-cylinder diesel engine, mounting method and application |
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| Publication Number | Publication Date |
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| CN110725766A true CN110725766A (en) | 2020-01-24 |
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| CN201910919727.2A Pending CN110725766A (en) | 2019-09-26 | 2019-09-26 | High-pressure oil pump driving transmission device of single-cylinder diesel engine, mounting method and application |
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Citations (9)
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|---|---|---|---|---|
| DE3028160A1 (en) * | 1980-07-25 | 1982-02-18 | Steyr-Daimler-Puch AG, 1010 Wien | Flexible coupling driving fuel injection pump - has spool between coupling disc sets and dampers to minimise axial spool oscillation |
| CN2866952Y (en) * | 2005-11-28 | 2007-02-07 | 潍柴动力股份有限公司 | Couplings driving device for diesel engine common rail oil pump |
| CN201125817Y (en) * | 2007-12-13 | 2008-10-01 | 广西玉柴机器股份有限公司 | Diesel engine fuel oil injection pump connecting structure |
| WO2013189624A1 (en) * | 2012-06-18 | 2013-12-27 | Robert Bosch Gmbh | High-pressure pump for a fuel injection system |
| CN103899667A (en) * | 2014-03-07 | 2014-07-02 | 武汉科欣技术有限责任公司 | Novel combined type bidirectional flexible diaphragm coupling with tubular long shaft and method for manufacturing novel combined type bidirectional flexible diaphragm coupling with tubular long shaft |
| CN106089527A (en) * | 2016-08-09 | 2016-11-09 | 河南柴油机重工有限责任公司 | A kind of injection pump of engine driving means |
| CN108915919A (en) * | 2018-08-28 | 2018-11-30 | 河南柴油机重工有限责任公司 | A kind of Design of High Pressure Common Rail Diesel Engine common rail pump drive |
| CN208565309U (en) * | 2018-07-09 | 2019-03-01 | 广州嵘德电子有限公司 | A kind of diaphragm coupling |
| CN210799205U (en) * | 2019-09-26 | 2020-06-19 | 河南柴油机重工有限责任公司 | High-pressure oil pump driving transmission device of single-cylinder diesel engine |
-
2019
- 2019-09-26 CN CN201910919727.2A patent/CN110725766A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3028160A1 (en) * | 1980-07-25 | 1982-02-18 | Steyr-Daimler-Puch AG, 1010 Wien | Flexible coupling driving fuel injection pump - has spool between coupling disc sets and dampers to minimise axial spool oscillation |
| CN2866952Y (en) * | 2005-11-28 | 2007-02-07 | 潍柴动力股份有限公司 | Couplings driving device for diesel engine common rail oil pump |
| CN201125817Y (en) * | 2007-12-13 | 2008-10-01 | 广西玉柴机器股份有限公司 | Diesel engine fuel oil injection pump connecting structure |
| WO2013189624A1 (en) * | 2012-06-18 | 2013-12-27 | Robert Bosch Gmbh | High-pressure pump for a fuel injection system |
| CN103899667A (en) * | 2014-03-07 | 2014-07-02 | 武汉科欣技术有限责任公司 | Novel combined type bidirectional flexible diaphragm coupling with tubular long shaft and method for manufacturing novel combined type bidirectional flexible diaphragm coupling with tubular long shaft |
| CN106089527A (en) * | 2016-08-09 | 2016-11-09 | 河南柴油机重工有限责任公司 | A kind of injection pump of engine driving means |
| CN208565309U (en) * | 2018-07-09 | 2019-03-01 | 广州嵘德电子有限公司 | A kind of diaphragm coupling |
| CN108915919A (en) * | 2018-08-28 | 2018-11-30 | 河南柴油机重工有限责任公司 | A kind of Design of High Pressure Common Rail Diesel Engine common rail pump drive |
| CN210799205U (en) * | 2019-09-26 | 2020-06-19 | 河南柴油机重工有限责任公司 | High-pressure oil pump driving transmission device of single-cylinder diesel engine |
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