CN113586305B - Air distributor of diesel engine - Google Patents
Air distributor of diesel engine Download PDFInfo
- Publication number
- CN113586305B CN113586305B CN202111089315.4A CN202111089315A CN113586305B CN 113586305 B CN113586305 B CN 113586305B CN 202111089315 A CN202111089315 A CN 202111089315A CN 113586305 B CN113586305 B CN 113586305B
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- Prior art keywords
- air
- air distributor
- engine oil
- distributor
- distributor body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N9/00—Starting of engines by supplying auxiliary pressure fluid to their working chambers
- F02N9/04—Starting of engines by supplying auxiliary pressure fluid to their working chambers the pressure fluid being generated otherwise, e.g. by compressing air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/06—Dip or splash lubrication
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention provides an air distributor of a diesel engine, which comprises an air distributor body, wherein a plurality of air inlets are formed in the air distributor body and connected with a driving shaft, one end of the driving shaft is fixedly connected with a coupler, a distribution disc is fixedly sleeved outside the coupler, one end of the distribution disc is provided with a compression sealing device, a plurality of long holes are uniformly distributed in the distributor body, a distributor cover is fixedly sleeved outside the distributor body, one end of the distributor cover is hermetically connected with the air distributor body, the other end of the distributor cover is provided with a large hollow bolt, the air distributor body is also provided with an air flow channel and a plurality of engine oil channels, one end of the air flow channel is communicated with the air inlets, the other end of the air flow channel is provided with a small hollow bolt, and one end of the engine oil channels is communicated with an engine oil inlet connector. According to the air distributor of the diesel engine, the internal structure of the air distributor body is adjusted, so that the heat productivity of the air distributor and the friction between systems are reduced, the abrasion of parts is reduced, the service life of the air distributor is prolonged, and the reliability of the air distributor is improved.
Description
Technical Field
The invention belongs to the technical field of diesel engines, and particularly relates to an air distributor of a diesel engine.
Background
For high power diesel engines, air starting is an excellent starting device, including an air tank, an air distributor, an air duct, as a backup starting device for the diesel engine. The air distributor is an important component of the air starting device. The compressed air in the air bottle is fed into the air distributor through the air conduit, and the air distributor feeds the air with certain pressure into each cylinder through the air starting conduit and the starting valve according to the ignition sequence and interval angle of the diesel engine, so as to drive the piston to do work and realize air starting. A prototype air distributor of a diesel engine comprises an air distributor body, and is also integrated with an air flow channel and an engine oil channel, as shown in figure 4, engine oil in a transmission case rotates along with a gear at high speed and splashes into the engine oil channel in the air distributor body, and the engine oil flows into friction surfaces of a driving shaft, a coupling and the like along with the channel to cool and lubricate the air distributor. The splash lubrication mode has the defects of poor reliability, easy oxidation and pollution of lubricating oil, insufficient lubrication of friction surfaces and untimely cooling.
Disclosure of Invention
In view of this, the present invention aims to provide an air distributor for a diesel engine, so as to solve the problems of poor lubrication reliability, insufficient lubrication of friction surfaces, and untimely cooling existing in the existing equipment.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a diesel engine air distributor comprises an air distributor body, wherein a plurality of air inlets are formed in the air distributor body, the interior of the air distributor body is connected with a driving shaft, one end of the driving shaft is meshed with a diesel engine transmission system gear, the other end of the driving shaft is connected with a coupler internal spline, a coupler external spline is connected with a distribution disc internal spline, a plurality of long holes are uniformly distributed in the distribution disc, one end of the distribution disc coincides with the end face of the air inlet of the air distributor body, the other end of the distribution disc is fixedly connected with a distributor cover, and a compression sealing device is arranged in the distribution disc and the distributor cover; the air distributor cover is fixedly and hermetically connected with the air distributor body, the other end of the air distributor body is provided with a large hollow bolt, the air distributor body is also provided with a plurality of airflow channels and engine oil channels, one end of each airflow channel is communicated with the air inlet, the other end of each airflow channel is provided with a small hollow bolt, the small hollow bolts are used for being communicated with the air starting guide pipe, one end of each engine oil channel is communicated with the engine oil inlet connector, and the engine oil inlet connector is used for being communicated with the engine oil guide pipe. Furthermore, a plurality of U-shaped long holes are uniformly distributed on the distribution disc.
Furthermore, the number of the engine oil channels arranged in the air distributor body is two, namely a first engine oil channel and a second engine oil channel, the center lines of the first engine oil channel and the second engine oil channel are perpendicular to each other, the outer part of the air distributor body is provided with an arc surface, the first engine oil channel and the arc surface of the air distributor body are in an oblique downward angle, and the outer end of the second engine oil channel is communicated with an engine oil inlet joint.
Furthermore, compress tightly sealing device includes shaft coupling spring, distributor lid, and the shaft coupling spring is cup jointed in the outside activity of one end that the drive shaft was kept away from to the shaft coupling, and the shaft coupling spring is located distributor lid inside, distributor lid and distribution dish sealing connection.
Further, the distributor cover is of a barrel-shaped structure.
Compared with the prior art, the diesel engine air distributor has the following advantages:
(1) according to the air distributor of the diesel engine, the design of an engine oil channel is improved by adjusting the internal structure of the air distributor body, the lubricating mode of the air distributor is optimized, the splash lubrication is optimized into a composite lubricating mode of splash lubrication and pressure lubrication, the defects of poor lubricating reliability, insufficient lubrication of a friction surface and untimely cooling of a prototype air distributor of the diesel engine are overcome, and the reliability of the air distributor is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a diesel engine air distributor according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of an air distributor of a diesel engine according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the prior art in the background of the invention.
Description of reference numerals:
1-an air distributor body; 2-a drive shaft; 3, coupling; 4-a distribution tray; 5-engine oil inlet joint; 6-dispenser enclosure; 7-a dispenser cap; 8-large hollow bolt; 9-a coupling spring; 10-small hollow bolts; 11-engine oil channel I; 12-second engine oil channel; 13-an airflow channel; 14-an air-actuated duct; 15-oil conduit.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
An air distributor of a diesel engine, as shown in figures 1 to 3, comprises an air distributor body 1, a driving shaft 2, a coupling 3, a distribution disc 4, an engine oil inlet joint 5, a distributor cover 6, a distributor cover 7, a large hollow bolt 8, a coupling spring 9 and a small hollow bolt 10, wherein a plurality of air inlets are arranged in the air distributor body 1, the inside of the air distributor body 1 is connected with the driving shaft 2, one end of the driving shaft 2 is meshed with a gear of a diesel engine transmission system, the other end of the driving shaft is connected with an internal spline of the coupling 3, the external spline of the coupling 3 is connected with the internal spline of the distribution disc 4, so that the driving shaft 2 can rotate in the air distributor body 1 under the driving of the diesel engine transmission system and drive the distribution disc 4 to rotate, one end of the distribution disc 4 is provided with a compression sealing device, a plurality of long holes are uniformly distributed in the inside, one end of the distributor cover 6 is connected with the air distributor body 1 in a sealing way, the other end is tightly connected with the large hollow bolt 8, the large hollow bolt 8 is used for communicating an air inlet guide pipe, and an airflow channel 13, a first engine oil channel 11 and a second engine oil channel 12 are integrated in the air distributor body 1; one end of the airflow channel 13 is communicated with the air inlet, the end part of the other end of the airflow channel is provided with an air outlet, the inside of the air outlet is connected with the small hollow bolt 10, the small hollow bolt 10 is used for being communicated with the air starting guide pipe 14, one end of the second engine oil channel 12 is communicated with the engine oil inlet joint 5, and the engine oil inlet joint 5 is used for being communicated with the engine oil guide pipe 15.
A plurality of U-shaped long holes are uniformly distributed on the distribution disk 4.
The first engine oil channel 11 and the second engine oil channel 12 are arranged in the air distributor body 1, the center lines of the first engine oil channel 11 and the second engine oil channel 12 are perpendicular to each other, the outer portion of the air distributor body 1 is provided with an arc surface, the first engine oil channel 11 and the arc surface of the air distributor body 1 are in an inclined downward angle, on one hand, splashed engine oil can flow into a motion friction surface under the action of gravity, and on the other hand, engine oil with certain pressure in the second engine oil channel 12 is prevented from flowing back and flowing out of the first engine oil channel 11. The outer end of the second engine oil inlet is communicated with the engine oil inlet joint 5.
The compressing and sealing device comprises a coupler spring 9 and a distributor cover 7, one end of the coupler 3 is fixedly connected to the driving shaft 2, the other end of the coupler is movably sleeved with the coupler spring 9, the coupler spring 9 is located inside the distributor cover 7, the distributor cover 7 is of a barrel-shaped structure, and the outside of the distributor cover 7 and the inside of the distributor plate 4 are compressed and connected to form a sealing structure.
The working principle of the diesel engine air distributor is as follows:
the air flow channel 13, realize the air starting function of the air distributor, the compressed air enters the airtight air cavity formed with distributor cover 6 and air distributor body 1 through the air inlet conduit, by the big hollow bolt 8, when the distribution disk 4 rotates to a certain angle with the coupling 3, drive shaft 2, the slot hole on the distribution disk 4 communicates with any air inlet of the air distributor body 1, the compressed air enters the air flow channel 13 of the air distributor body 1, through the small hollow bolt 10, enters each cylinder through the air starting conduit 14, push the piston to do work, realize the air starting. The first engine oil channel 11 and the second engine oil channel 12 form two lubrication modes of splashing and pressure. In the working process of the air distributor, the driving shaft 2 and the related rotating parts rotate at a high speed along with a diesel engine transmission system, and at the moment, engine oil in the transmission case splashes into the engine oil channel I11 along with the high-speed moving parts, so that the friction surface of the air distributor is cooled and lubricated; on the other hand, the engine oil with certain pressure is branched from the main oil gallery and enters the second engine oil channel 12 of the air distributor body from the engine oil inlet joint 5 through the engine oil guide pipe 15 to cool and lubricate the friction surface of the air distributor. Therefore, the cooling and lubricating effects of the friction surface of the air distributor are optimized, the friction between systems is reduced, the abrasion of parts is reduced, the service life of the air distributor is prolonged, and the reliability of the air distributor is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (5)
1. A diesel engine air distributor, characterized by: the air distributor comprises an air distributor body, wherein a plurality of air inlets are formed in the air distributor body, a driving shaft is arranged in the air distributor body, one end of the driving shaft is meshed with a gear of a diesel engine transmission system, the other end of the driving shaft is connected with an internal spline of a coupler, an external spline of the coupler is connected with an internal spline of a distribution disc, a plurality of long holes are uniformly distributed in the distribution disc, one end of the distribution disc is superposed with the end face of the air inlet of the air distributor body, the other end of the distribution disc is fixedly connected with a distributor cover, and a compression sealing device is arranged in the distribution disc and the distributor cover; one end of the distributor cover is hermetically connected with the air distributor body, the other end of the distributor cover is tightly connected with the large hollow bolt, the air distributor body is further provided with a plurality of airflow channels and engine oil channels, one end of each airflow channel is communicated with the air inlet, the other end of each airflow channel is provided with the small hollow bolt, the small hollow bolts are used for being communicated with the air starting guide pipe, one end of each engine oil channel is communicated with the engine oil inlet joint, and the engine oil inlet joint is used for being communicated with the engine oil guide pipe.
2. A diesel engine air distributor as set forth in claim 1 wherein: a plurality of U-shaped long holes are uniformly distributed on the distribution disc.
3. A diesel engine air distributor as set forth in claim 1 wherein: the two engine oil channels arranged in the air distributor body are respectively a first engine oil channel and a second engine oil channel, the center lines of the first engine oil channel and the second engine oil channel are perpendicular to each other, the outer part of the air distributor body is provided with an arc surface, the first engine oil channel and the arc surface of the air distributor body form an oblique downward angle, and the outer end of the second engine oil channel is communicated with an engine oil inlet joint.
4. A diesel engine air distributor as set forth in claim 1 wherein: the pressing sealing device comprises a coupler spring and a distributor cover, the coupler spring is sleeved outside one end, away from the driving shaft, of the coupler, the coupler spring is located inside the distributor cover, and the distributor cover is fixedly and hermetically connected with the distribution plate.
5. The diesel engine air distributor as set forth in claim 4, wherein: the distributor cover is of a barrel-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111089315.4A CN113586305B (en) | 2021-09-16 | 2021-09-16 | Air distributor of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111089315.4A CN113586305B (en) | 2021-09-16 | 2021-09-16 | Air distributor of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113586305A CN113586305A (en) | 2021-11-02 |
| CN113586305B true CN113586305B (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111089315.4A Active CN113586305B (en) | 2021-09-16 | 2021-09-16 | Air distributor of diesel engine |
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| CN (1) | CN113586305B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033594B (en) * | 2021-11-26 | 2023-04-07 | 山西柴油机工业有限责任公司 | Connection structure of diesel engine and air distributor, clutch and air distributor |
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