CN212690575U - V-shaped 6-cylinder diesel engine crankshaft - Google Patents
V-shaped 6-cylinder diesel engine crankshaft Download PDFInfo
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- CN212690575U CN212690575U CN202021919896.0U CN202021919896U CN212690575U CN 212690575 U CN212690575 U CN 212690575U CN 202021919896 U CN202021919896 U CN 202021919896U CN 212690575 U CN212690575 U CN 212690575U
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Abstract
The utility model discloses a 6 jar diesel engine bent axles of V type, include: main journals, connecting rod journals, and crank arms. The main journal is installed on the cylinder body. The connecting rod shaft neck is connected with the connecting rod big end hole. The main journal and the connecting rod journal are respectively connected with two sides of the crank arm, and one main journal, one connecting rod journal and one crank arm form a crank throw. Wherein the ratio of the cylinder center distance to the cylinder diameter is 1.1-1.2. Wherein the ratio of the diameter of the main journal to the cylinder diameter is 0.8-0.9. Wherein the ratio of the diameter of the connecting rod journal to the cylinder diameter is 0.65-0.75. Therefore, the utility model discloses a 6 jar diesel engine bent axles of V type can effectively shorten the distance between two jars of engine cylinder body, has reduced engine weight, and the engine can bear higher detonation pressure.
Description
Technical Field
The utility model relates to a technical field of internal-combustion engine especially relates to a 6 jar diesel engine bent axles of V type.
Background
The crankshaft is a key part of a traditional internal combustion engine, and the crankshaft, the piston, the connecting rod and the flywheel together convert the vertical reciprocating motion of the internal combustion engine into the circular motion of the crankshaft, so that power output is realized. The crankshaft generally consists of a main journal, a connecting rod journal, a crank, a balance weight, a front end and a rear end, etc. A main journal, a connecting rod journal and a crank constitute a bell crank. The crankshaft rotation needs to balance the reciprocating inertia force and the rotating inertia force, and a balance block is designed on the crankshaft crank to balance the reciprocating inertia force and the rotating inertia force caused by the crankshaft rotation.
The counterbalance on the traditional V-type 6-cylinder diesel oil crank adopts equal thickness arrangement, in order to meet the requirement of V-type 6-cylinder diesel oil vibration noise, the thickness of the counterbalance on the crank is designed to be thicker, the integral length of the crank is long, the distance between two cylinders of an engine cylinder body is large, or the diameter of the counterbalance on the crank is large, the height of the engine cylinder body is high, and the design schemes of the two counterbalances can lead to the increase of the weight of the engine and the increase of the material cost.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a 6 jar diesel engine bent axles of V type, it can effectively shorten the distance between two jars of engine cylinder body, has reduced engine weight, and the engine can bear higher detonation pressure.
In order to achieve the above object, the utility model provides a 6 jar diesel engine bent axles of V type, include: main journals, connecting rod journals, and crank arms. The main journal is installed on the cylinder body. The connecting rod shaft neck is connected with the connecting rod big end hole. The main journal and the connecting rod journal are respectively connected with two sides of the crank arm, and one main journal, one connecting rod journal and one crank arm form a crank throw. Wherein the ratio of the cylinder center distance to the cylinder diameter is 1.1-1.2. Wherein the ratio of the diameter of the main journal to the cylinder diameter is 0.8-0.9. Wherein the ratio of the diameter of the connecting rod journal to the cylinder diameter is 0.65-0.75.
In one embodiment of the present invention, the number of crank arms is six.
In an embodiment of the present invention, the thickness of the first crank arm and the sixth crank arm of the six crank arms is the same.
In an embodiment of the present invention, the thickness of the second crank arm, the third crank arm, the fourth crank arm and the fifth crank arm of the six crank arms is the same.
In an embodiment of the present invention, the thickness of the first crank arm and the sixth crank arm is different from the thickness of the second crank arm, the third crank arm, the fourth crank arm and the fifth crank arm.
In one embodiment of the present invention, the ratio of the thickness of the first crank arm and the sixth crank arm to the cylinder diameter is 0.38.
In one embodiment of the present invention, the ratio of the thickness of the second crank arm, the third crank arm, the fourth crank arm and the fifth crank arm to the cylinder diameter is 0.14.
Compared with the prior art, according to the utility model discloses a 6 jar diesel engine bent axles of V type, under the condition of guaranteeing 6 jar diesel engine vibration noise requirements of V type, can effectively shorten the distance between two jars of engine cylinder body, reduce engine weight, reduce material cost. Meanwhile, the strength of the engine body, the cylinder cover and the crankshaft is improved due to the reduction of the cylinder center distance, and the engine can bear higher detonation pressure, so that the high-power, high-strength and light-weight design of the engine is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of a V-type 6-cylinder diesel engine crankshaft according to an embodiment of the present invention.
Description of the main reference numerals:
1-main journal, 2-connecting rod journal and 3-crank arm.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is a schematic structural diagram of a V-type 6-cylinder diesel engine crankshaft according to an embodiment of the present invention. As shown in fig. 1.
According to the utility model discloses preferred embodiment's a 6 jar diesel engine bent axles of V type, include: main journals, connecting rod journals, and crank arms. The main journal is installed on the cylinder body. The connecting rod shaft neck is connected with the connecting rod big end hole. The main journal and the connecting rod journal are respectively connected with two sides of the crank arm, and one main journal, one connecting rod journal and one crank arm form a crank throw. Wherein the ratio of the cylinder center distance to the cylinder diameter is 1.1-1.2. Wherein the ratio of the diameter of the main journal to the cylinder diameter is 0.8-0.9. Wherein the ratio of the diameter of the connecting rod journal to the cylinder diameter is 0.65-0.75.
In one embodiment of the present invention, the number of crank arms is six. The thickness of the first crank arm and the sixth crank arm of the six crank arms is the same. The thickness of the second crank arm, the third crank arm, the fourth crank arm and the fifth crank arm is the same. The first crank arm and the sixth crank arm are different in thickness from the second crank arm, the third crank arm, the fourth crank arm and the fifth crank arm.
In one embodiment of the present invention, the ratio of the thickness of the first crank arm and the sixth crank arm to the cylinder diameter is 0.38. The ratio of the thickness of the second crank arm, the third crank arm, the fourth crank arm and the fifth crank arm to the cylinder diameter is 0.14.
In practical application, the utility model discloses a 6 jar diesel engine bent axles of V type specifically include: main journals, connecting rod journals, and crank arms. Wherein a main journal, a connecting rod journal and a crank arm form a crank throw. The main design parameters of the crank are as follows: the cylinder center distance L/D (cylinder diameter) is 1.1-1.2; the diameter D1/D (cylinder diameter) of the main journal is 0.8-0.9; the diameter D2/D of the connecting rod journal is 0.65-0.75; crank arm thickness H/D is: gears 1 and 6 are 0.38, the remaining gears are 0.14. The V-shaped 6-cylinder diesel engine is provided with six crank arms, the thicknesses of the first crank arm and the sixth crank arm are the same, the thicknesses of the rest gears of the crank arms are the same, the thicknesses of the first crank arm and the sixth crank arm are different from those of other gears, the crank arms are designed to be unequal in thickness, and the connecting rod journals are arranged in a parallel connecting rod installation mode.
In a word, the utility model discloses a 6 jar diesel engine bent axles of V type is guaranteeing under the condition that 6 jar diesel engine vibration noise of V type required, can effectively shorten the distance between two jars of engine cylinder body, reduces engine weight, reduction material cost. Meanwhile, the strength of the engine body, the cylinder cover and the crankshaft is improved due to the reduction of the cylinder center distance, and the engine can bear higher detonation pressure, so that the high-power, high-strength and light-weight design of the engine is facilitated.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (7)
1. A V-type 6-cylinder diesel engine crankshaft, comprising:
a main journal mounted on the cylinder body;
the connecting rod shaft neck is connected with the connecting rod big end hole; and
the main journals and the connecting rod journals are respectively connected with two sides of the crank arm, and one main journal, one connecting rod journal and one crank arm form a crank throw;
wherein the ratio of the cylinder center distance to the cylinder diameter is 1.1-1.2;
wherein the ratio of the diameter of the main journal to the cylinder diameter is 0.8-0.9;
wherein the ratio of the diameter of the connecting rod journal to the cylinder diameter is 0.65-0.75.
2. The V-type 6 cylinder diesel engine crankshaft of claim 1 wherein said number of crank arms is six.
3. The V-type 6 cylinder diesel engine crankshaft of claim 2 wherein a first crank web and a sixth crank web of said six crank webs are the same thickness.
4. The V-type 6 cylinder diesel engine crankshaft of claim 3 wherein the thickness of the second, third, fourth and fifth crank arms of said six crank arms are the same.
5. The V-type 6 cylinder diesel engine crankshaft of claim 4, wherein said first crank arm and said sixth crank arm are different thicknesses from said second crank arm, said third crank arm, said fourth crank arm, and said fifth crank arm.
6. The V-type 6 cylinder diesel engine crankshaft of claim 5, wherein a ratio of a thickness of said first crank web and said sixth crank web to said bore diameter is 0.38.
7. The V-type 6 cylinder diesel engine crankshaft of claim 5 wherein said second crank web, said third crank web, said fourth crank web and said fifth crank web have a thickness to said bore ratio of 0.14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021919896.0U CN212690575U (en) | 2020-09-04 | 2020-09-04 | V-shaped 6-cylinder diesel engine crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021919896.0U CN212690575U (en) | 2020-09-04 | 2020-09-04 | V-shaped 6-cylinder diesel engine crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690575U true CN212690575U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021919896.0U Active CN212690575U (en) | 2020-09-04 | 2020-09-04 | V-shaped 6-cylinder diesel engine crankshaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN212690575U (en) |
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2020
- 2020-09-04 CN CN202021919896.0U patent/CN212690575U/en active Active
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