CN112343997A - Diesel engine transmission case structure - Google Patents
Diesel engine transmission case structure Download PDFInfo
- Publication number
- CN112343997A CN112343997A CN202011304726.6A CN202011304726A CN112343997A CN 112343997 A CN112343997 A CN 112343997A CN 202011304726 A CN202011304726 A CN 202011304726A CN 112343997 A CN112343997 A CN 112343997A
- Authority
- CN
- China
- Prior art keywords
- oil
- transmission case
- diesel engine
- casting
- hole
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/06—Combinations of engines with mechanical gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to the technical field of internal structures of diesel engines, in particular to a transmission case structure of a diesel engine, which is reasonable in structure arrangement and free of oil leakage.
Description
Technical Field
The invention relates to the technical field of internal structures of diesel engines, in particular to a transmission case structure of a diesel engine.
Background
The power of the non-road diesel engine is larger and larger, and particularly the power of a V-shaped engine is higher and higher in strengthening degree and more compact in structure. The engine oil of the general diesel engine is fed into a main oil duct of the engine body through the engine oil pump, or a built-in oil duct is arranged on the engine body, or the engine oil is connected by an external pipeline, but the two structures have defects, and the structure of the built-in oil duct arranged on the engine body can increase the structural arrangement difficulty of the engine body and possibly influence the strength of the engine body. The external pipeline is used for connection, so that the appearance is not attractive, the structure is not compact, and the risk of engine oil leakage is easily caused at the connection part.
Disclosure of Invention
In order to solve the problems of complex structure and easy oil leakage of the existing transmission case, the invention provides a transmission case structure of a diesel engine, which is reasonable in structural arrangement and free from oil leakage.
The technical scheme is as follows: a transmission case structure of a diesel engine comprises a transmission case body and is characterized in that a casting oil cavity, a vertical oil duct and a transverse oil duct which are arranged in a staggered mode are arranged on the transmission case body, the vertical oil duct and the transverse oil duct are communicated through an intermediate oil duct, a gear mounting base and an oil pump mounting hole are arranged on the transmission case body, a first through hole communicated with the casting oil cavity is formed beside the oil pump mounting hole, and a second through hole communicated with a machine body is formed in the wall of the casting oil cavity.
The casting oil cavity is further characterized in that the casting oil cavity is a special-shaped oil cavity, and a sand cleaning hole is formed in the casting oil cavity;
the gear mounting bases comprise three gear mounting bases, wherein two gear mounting bases are used for mounting timing idler gears, and the other gear mounting bases are used for mounting oil pump idler gears;
the edge of the transmission box body is provided with a pressure regulating valve.
After the oil duct structure is adopted, the oil duct is directly formed on the transmission box body, the structure of the engine body is not changed, the strength of the engine body is ensured, external pipelines are reduced, the structure is simple, the arrangement is reasonable, and the oil leakage phenomenon cannot occur.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a casting oil cavity structure;
FIG. 3 is a cross-sectional view at the vertical oil gallery;
FIG. 4 is a cross-sectional view of the cross-port oil passage;
fig. 5 is a schematic diagram of a pressure regulating valve.
Detailed Description
Referring to fig. 1 to 5, the diesel engine transmission case structure comprises a transmission case body 1, wherein a casting oil cavity 3, a vertical oil duct 2 and a transverse oil duct 4 which are arranged in a staggered mode are arranged on the transmission case body 1, the vertical oil duct 2 and the transverse oil duct 4 are communicated through an intermediate oil duct 10, a gear mounting base and an oil pump mounting hole 7 are arranged on the transmission case body 1, a first through hole 8 communicated with the casting oil cavity 3 is formed beside the oil pump mounting hole 7, and a second through hole 9 communicated with a machine body is formed in the cavity wall of the casting oil cavity 3. Fig. 6 shows a threaded hole.
Specifically, the casting oil cavity 3 is a special-shaped oil cavity, and a sand cleaning hole is reasonably arranged on the casting oil cavity 3.
The gear mounting base 5 includes three, two of which are used for mounting the timing idler gear 5, and the other is used for mounting the oil pump idler gear.
The principle of the invention is as follows: the oil pump is arranged on the oil pump mounting hole 7, oil discharged from the oil pump enters the casting oil cavity 3 through the first through hole 8, then enters the machine body through the second through hole 9 for cooling and filtering, and enters the transverse oil passage 4 through the oil return passage 11 and then enters the vertical oil passage 2 through the intermediate oil passage 10 to lubricate a sliding bearing on the timing idle gear seat 5.
The edge of the transmission box body is provided with a pressure regulating valve, the pressure regulating valve comprises a plunger 14, a spring 13 and a tightening bolt 12, the oil pressure is set by adjusting the tightening bolt 12, the oil extrudes the plunger 14 from the casting oil cavity 3, if the oil pressure exceeds the set pressure, the plunger 14 extrudes the spring 13 to move towards the tightening bolt 12, and the oil is decompressed from a hole 15, so that the oil pressure is ensured to be the set pressure.
Claims (4)
1. A transmission case structure of a diesel engine comprises a transmission case body and is characterized in that a casting oil cavity, a vertical oil duct and a transverse oil duct which are arranged in a staggered mode are arranged on the transmission case body, the vertical oil duct and the transverse oil duct are communicated through an intermediate oil duct, a gear mounting base and an oil pump mounting hole are arranged on the transmission case body, a first through hole communicated with the casting oil cavity is formed beside the oil pump mounting hole, and a second through hole communicated with a machine body is formed in the wall of the casting oil cavity.
2. The diesel engine transmission case structure as claimed in claim 1, wherein the casting oil chamber is a profiled oil chamber, and a sand cleaning hole is formed on the casting oil chamber.
3. The diesel engine transmission case structure of claim 1, wherein the gear mounting base includes three, two of which are used for mounting a timing idler gear and the other is used for mounting a machine oil pump idler gear.
4. The diesel engine transmission case structure as claimed in claim 1, wherein a pressure regulating valve is installed on the edge of the transmission case body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304726.6A CN112343997A (en) | 2020-11-19 | 2020-11-19 | Diesel engine transmission case structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304726.6A CN112343997A (en) | 2020-11-19 | 2020-11-19 | Diesel engine transmission case structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112343997A true CN112343997A (en) | 2021-02-09 |
Family
ID=74364286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011304726.6A Pending CN112343997A (en) | 2020-11-19 | 2020-11-19 | Diesel engine transmission case structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112343997A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033571A (en) * | 2021-11-25 | 2022-02-11 | 中车大连机车车辆有限公司 | Integral casting integrated diesel engine body |
-
2020
- 2020-11-19 CN CN202011304726.6A patent/CN112343997A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033571A (en) * | 2021-11-25 | 2022-02-11 | 中车大连机车车辆有限公司 | Integral casting integrated diesel engine body |
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