CN211874613U

CN211874613U - Crankshaft box

Info

Publication number: CN211874613U
Application number: CN202020245264.4U
Authority: CN
Inventors: 谢安源; 卢劲波; 王自强; 于晓亮; 吴东; 安青春
Original assignee: Chongqing Ampride Power & Machinery Co ltd
Current assignee: Chongqing Fenghuo Technology Co.,Ltd.
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-11-06
Anticipated expiration: 2030-03-03

Abstract

The utility model relates to the field of engines, in particular to a crankshaft box body, which comprises a box body, a left cylinder body and a right cylinder body; the left cylinder body and the right cylinder body are respectively positioned on two sides of the box body; this internal oil storage chamber that is equipped with of case, left side cylinder body with all be equipped with the heat dissipation oil duct on the lateral wall of right cylinder body with the oil storage chamber is connected. This application is connected the heat dissipation oil duct in left cylinder body and the right cylinder body with the oil storage chamber through increasing the oil storage chamber at this internal, and the design in oil storage chamber has reduced the design of additional oil duct on the case body to just can satisfy the purpose of cooling down left cylinder body and right cylinder body under the condition that does not increase the oil duct. Therefore, the wall thickness of the left cylinder body and the wall thickness of the right cylinder body do not need to be additionally increased, the complexity of the oil duct is simplified, a gas shrinkage hole is not generated during processing, the rejection rate is reduced, and the processing time is shortened.

Description

Crankshaft box

Technical Field

The utility model relates to an engine field, concretely relates to crankshaft box.

Background

With the development of society, various types of motor vehicles emerge endlessly, which is convenient for people to live. Most motor vehicles adopt gasoline as fuel, a gasoline engine becomes an essential part of many motor vehicles, and a crankcase body of the gasoline engine is a core part of the gasoline engine. The engine crankshaft structure has the advantages that the crankshaft is installed, in the working process of an engine, part of combustible mixed gas and waste gas permeate into the crankcase through the gap between the piston ring and the gap between the cylinder walls, and the temperature and the pressure in the crankcase can be increased due to the gas leaked into the crankcase, so that the temperature of the crankcase body needs to be reduced by using engine oil.

The engine oil is cooled by the engine oil cooler, filtered by the fine filter, flows through the crankcase body, and finally enters the cylinder head to cool the cylinder head. Because the spare part has been installed in the bent axle box, in order to guarantee the space of oil duct, need increase the wall thickness of case body, the oil duct structure in the current box is complicated, consequently when the casting processing box, leads to the box to produce the gas shrinkage cavity easily, and the disability rate is high, and process time is long. Meanwhile, after the wall thickness of the box body is increased, the weight of the box body is increased, the material is increased, and the cost is increased.

Disclosure of Invention

The utility model discloses to present crankcase body in order to make cooling machine oil circulate at this internal circulation of case, can play the effect of cooling to the case body, the oil duct is set up to the wall thickness that needs to increase the crankcase body, because the wall thickness of case body has increased, when adding man-hour easy production gas shrinkage cavity, the disability rate is high, and process time is long, leads to the material to increase after the wall thickness increases simultaneously, and the problem of cost increase provides a crankshaft box.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a crankshaft box body, includes the case body, this internal camshaft mounting hole that is equipped with, the camshaft is installed to the camshaft mounting hole, be equipped with the oil storage chamber in the camshaft mounting hole, the camshaft is hollow, the camshaft with oil storage chamber intercommunication.

Preferably, a left cylinder and a right cylinder; the left cylinder body and the right cylinder body are respectively positioned on two sides of the box body; the side walls of the left cylinder body and the right cylinder body are respectively provided with a heat dissipation oil duct communicated with the oil storage cavity, and the box body is provided with a first oil duct communicated with the oil storage cavity; the heat dissipation oil duct of the left cylinder body comprises a second oil duct and a third oil duct, one end of the second oil duct is communicated with the first oil duct, and the other end of the second oil duct is communicated with the third oil duct. The second oil duct and the third oil duct are arranged outside the side wall of the left cylinder body, so that the left cylinder body is cooled.

Preferably, the heat dissipation oil duct of the right cylinder body includes a fourth oil duct and a fifth oil duct, one end of the fourth oil duct is communicated with the first oil duct, and the other end of the fourth oil duct is communicated with the fifth oil duct. And an oil passage symmetrical to the left cylinder body is arranged on the right cylinder body, so that the heat dissipation effect of the left cylinder body and the heat dissipation effect of the right cylinder body are consistent.

Preferably, the outer walls of the left cylinder body and the right cylinder body are both provided with cooling fins. The radiating fins are additionally arranged on the outer walls of the left cylinder body and the right cylinder body, and heat in the left cylinder body and the right cylinder body is radiated out through the radiating fins.

Preferably, the third oil duct is located outside the cooling fin of the left cylinder, and the fifth oil duct is located outside the cooling fin of the right cylinder. The radiating fin can increase the heat radiating area of left cylinder body and right cylinder body, in time gives out the heat in left cylinder body and the right cylinder body, and the heat that gives out is at the cooling through machine oil, and refrigerated effect is better.

Preferably, the third oil passage is parallel to an axis of the left cylinder block, and the fifth oil passage is parallel to an axis of the right cylinder block. The third oil duct is parallel to the axis of the left cylinder body, and the fifth oil duct is parallel to the axis of the right cylinder body, so that the uniform wall thickness of the left cylinder body and the right cylinder body is ensured, and materials are not wasted.

Compared with the prior art, the invention has the beneficial effects that: this application sets up the middle part of camshaft to hollow through increasing the oil storage chamber at this internal, is equivalent to the oil duct, and cooling machine oil just can follow hollow camshaft inflow oil storage chamber like this, need not set up the oil duct on the inner wall of case body to just can satisfy the purpose of cooling down to the case body under the condition that does not increase wall thickness. The oil duct is not required to be arranged on the box body through increasing the wall thickness, and after the wall thickness of the box body is reduced, a shrinkage cavity cannot be generated during machining, so that the rejection rate is reduced, and the machining time is shortened. Meanwhile, as the wall thickness is reduced, the weight of the box body is reduced, and the material is also reduced, so that the cost is reduced.

Description of the drawings:

FIG. 1 is a first schematic view of a crankcase according to the present application;

FIG. 2 is a front view of a crankcase provided by the present application;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 5 is a first top view of FIG. 1;

FIG. 6 is a second top view of FIG. 1;

FIG. 7 is a cross-sectional view taken along A-A of FIG. 5;

figure 8 is a cross-sectional view of the bit map 6 taken along B-B.

The labels in the figure are: 1-a box body, 2-a left cylinder body, 3-a right cylinder body, 4-an oil storage cavity, 5-a first oil channel, 6-a second oil channel, 7-a third oil channel, 8-a fourth oil channel, 9-a fifth oil channel, 10-a radiating fin, 11-a crankshaft mounting hole, 12-a camshaft mounting hole, 13-a camshaft and 14-a cam oil channel.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "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 merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 8, the present application provides a crankshaft case, a case body 1, a left cylinder block 2, and a right cylinder block 3; the left cylinder body 2 and the right cylinder body 3 are respectively positioned on two sides of the box body 1. At the inside camshaft mounting hole 12 that is equipped with of case body 1, camshaft mounting hole 12 sets up between left cylinder body 2 and right cylinder body 3, is provided with oil storage chamber 4 in the bottom of camshaft mounting hole 12, installs camshaft 13 in the

camshaft mounting hole

12, and 13 hollows in camshaft 13 position, hollow camshaft 13 can act as the oil duct, and cooling machine oil can flow in from camshaft 13 to the inner wall that need not the camshaft mounting hole 12 lower part of case body 1 again sets up the oil duct. The side walls of the left cylinder body 2 and the right cylinder body 3 are provided with heat dissipation oil ducts which are communicated with the oil storage cavity 4. The box body 1 is also provided with a crankshaft mounting hole 11 for mounting a crankshaft.

As shown in fig. 7 and 8, a first oil passage 5 is provided at the upper portion of the oil storage chamber 4, a second oil passage 6 and a third oil passage 7 are provided on the left cylinder body 2, a fourth oil passage 8 and a fifth oil passage 9 are provided on the right cylinder body 3, the second oil passage 6 and the fourth oil passage 8 are both communicated with the first oil passage 5, and a three-way structure is formed at the communication position. One end of the second oil duct 6 is communicated with the first oil duct 5, and the other end of the second oil duct 6 is communicated with the third oil duct 7. One end of the fourth oil duct 8 is communicated with the first oil duct 5, and the other end of the fourth oil duct 8 is communicated with the fifth oil duct 9.

And the outer walls of the left cylinder body 2 and the right cylinder body 3 are provided with cooling fins 10. The outer walls of the left cylinder body 2 and the right cylinder body 3 are both provided with cooling fins 10, the third oil duct 7 and the fifth oil duct 9 are distributed outside the cooling fins 10, and the cooling fins 10 are integrally formed with the left cylinder body 2 and the right cylinder body 3, namely the toothed cooling fins 10 are arranged outside the cylinder bodies of the left cylinder body 2 and the right cylinder body 3.

The working principle is as follows: as shown in fig. 4, 7 and 8, the cooling oil flows into the oil storage chamber 4 through the hollow camshaft 13, and when the left cylinder block 2 is cooled, the cooling oil flows into the second oil passage 6 from the oil storage chamber 4 through the first oil passage 5, and finally flows out into the oil passage inside the cylinder head through the third oil passage 7; when the right cylinder body 3 is cooled, engine oil flows into the fourth oil duct 8 from the oil storage cavity 4 through the first oil duct 5, and finally flows out of the fifth oil duct 9 to enter the oil duct inside the cylinder head. The oil duct of the crankcase body is simple in arrangement, the existing solid camshaft 13 is changed into the hollow camshaft 13, the oil storage cavity 4 is additionally arranged in the crankcase body 1, and engine oil flows in from the hollow camshaft 13, so that the requirement of the oil duct can be met without increasing the wall thickness of the crankcase body 1 below the camshaft mounting hole 12. This application shifts the oil duct of case body inner wall to the camshaft on to make this internal oil duct of case arrange simply, the wall thickness of case body also can not produce the gas shrinkage cavity with man-hour after not increasing, has reduced the disability rate, has shortened process time. Meanwhile, as the wall thickness is reduced, the weight of the box body is reduced, and the material is also reduced, so that the cost is reduced.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a crankshaft box body, its characterized in that, includes case body (1), be equipped with camshaft mounting hole (12) in body (1), install camshaft (13) in camshaft mounting hole (12), be equipped with oil storage chamber (4) in camshaft mounting hole (12), be provided with cam oil duct (14) that run through itself in camshaft (13), cam oil duct (14) with oil storage chamber (4) intercommunication.

2. A crankcase body according to claim 1, wherein the casing body (1) is provided with a left cylinder block (2) and a right cylinder block (3); the left cylinder body (2) and the right cylinder body (3) are respectively positioned on two sides of the box body (1); the side walls of the left cylinder body (2) and the right cylinder body (3) are respectively provided with a heat dissipation oil duct which is communicated with the oil storage cavity (4), the box body (1) is provided with a first oil duct (5), and the first oil duct (5) is communicated with the oil storage cavity (4); the heat dissipation oil duct of the left cylinder body (2) comprises a second oil duct (6) and a third oil duct (7), one end of the second oil duct (6) is communicated with the first oil duct (5), and the other end of the second oil duct (6) is communicated with the third oil duct (7).

3. The crankcase according to claim 2, wherein the radiator oil passage of the right cylinder block (3) includes a fourth oil passage (8) and a fifth oil passage (9), one end of the fourth oil passage (8) communicates with the first oil passage (5), and the other end of the fourth oil passage (8) communicates with the fifth oil passage (9).

4. A crankcase body according to claim 3, wherein the outer walls of the left and right cylinder blocks (2, 3) are provided with cooling fins (10).

5. A crankcase according to claim 4, wherein the third oil channel (7) is located outside the cooling fins (10) of the left block and the fifth oil channel (9) is located outside the cooling fins (10) of the right block (3).

6. A crankcase body according to claim 3, wherein the third oil channel (7) is parallel to the axis of the left cylinder block (2), and the fifth oil channel (9) is parallel to the axis of the right cylinder block (3).