CN218207678U - Double-metal differential case - Google Patents
Double-metal differential case Download PDFInfo
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- CN218207678U CN218207678U CN202222187644.9U CN202222187644U CN218207678U CN 218207678 U CN218207678 U CN 218207678U CN 202222187644 U CN202222187644 U CN 202222187644U CN 218207678 U CN218207678 U CN 218207678U
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- differential case
- differential
- case body
- fixed meshing
- fixed
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Abstract
The utility model relates to a bimetal differential case, including differential case body and fixed meshing cover, differential case body adopts different material preparation respectively with fixed meshing cover, and the centre is provided with the articulamentum, and differential case body adopts nodular cast iron material, and fixed meshing cover adopts forged steel material, articulamentum fixed connection is passed through with the one end of fixed meshing cover to the one end of differential case body. Compared with the existing pure forged steel differential case, the light-weight and low-cost differential case can be realized on the premise of ensuring reliability. The weight is reduced by 7 to 10 percent, and the cost is reduced by 12 to 15 percent.
Description
Technical Field
The utility model relates to an automobile parts technical field especially relates to a bimetal differential mechanism shell.
Background
The differential case is used as an important component of the differential and is used for mounting a half axle gear and a planetary gear, and when a vehicle turns or runs on an uneven road surface, the pure rolling operation of wheels on two sides is ensured at different rotating speeds. The differential shell for the existing heavy-duty automobile is usually a left half shell and a right half shell, and a fixed meshing sleeve is usually integrated on the differential shell on one side of a middle wheel differential lock to achieve the purposes of light weight and reduction of types of parts. Because the fixed meshing sleeve gear has the strength requirement, the differential case can only be made into a forged steel part, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bimetal differential mechanism shell, fixed meshing cover position are forged steel structure, and the lower ball of material cost or other low-cost materials that satisfy the performance requirement can be chooseed for use to all the other structures, realize differential mechanism shell cost reduction.
In order to solve the problems in the background art, the utility model discloses a realize through following technical scheme:
the utility model provides a bimetal differential case, includes differential case body and fixed meshing cover, differential case body adopts different material preparation respectively with fixed meshing cover, and the centre is provided with the articulamentum, and differential case body adopts nodular cast iron material, and fixed meshing cover adopts the forged steel material, the articulamentum fixed connection is passed through with the one end of fixed meshing cover to the one end of differential case body.
As a further explanation of the utility model: and a circumferential welding seam is arranged between the fixed meshing sleeve and the differential case body, the differential case body and the fixed meshing sleeve are integrated into a whole by adopting laser welding or friction welding, a circumferential welding seam is formed on the periphery of an interface of the circumferential welding seam, and the circumferential welding seam forms a connecting layer.
As a further explanation of the utility model: an embedded casting complex is arranged between the fixed meshing sleeve and the differential shell body, the embedded casting complex integrates the fixed meshing sleeve and the differential shell body by embedded composite casting, a layer of embedded casting complex is formed at the interface of the embedded casting complex, and the embedded casting complex forms a connecting layer.
Compared with the prior art, the utility model discloses following profitable technological effect has:
compared with the existing pure forged steel differential case, the light-weight and low-cost differential case can be realized on the premise of ensuring reliability. The weight is reduced by 7 to 10 percent, and the cost is reduced by 12 to 15 percent.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic structural view of the connection layer formed by the circumferential weld of the present invention;
fig. 3 is a schematic structural view of the connection layer formed by the embedded casting composite of the present invention.
Description of the reference numerals
1. A differential case body; 2. fixing the meshing sleeve; 3. a connecting layer; 4. a circumferential weld; 5. an embedded cast composite.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "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 in specific cases to those skilled in the art.
As shown in fig. 1 to 3, the embodiment of the utility model discloses a bimetal differential case, including differential case body 1 and fixed engaging sleeve 2, differential case body 1 adopts different materials preparation respectively with fixed engaging sleeve 2, and the centre is provided with articulamentum 3, and differential case body 1 adopts the nodular cast iron material, and fixed engaging sleeve 2 adopts the forged steel material, the one end of differential case body 1 passes through articulamentum 3 fixed connection with the one end of fixed engaging sleeve 2.
Because the fixed meshing sleeve gear has the strength requirement, the fixed meshing sleeve gear is made into a forged steel structure. The differential case body 1 is made of nodular cast iron material or other low-cost materials meeting performance requirements, so that the cost is reduced.
And a connecting layer 3 is arranged between the differential case body 1 and the fixed meshing sleeve 2. The connection layer 3 has two structures.
In the embodiment shown in fig. 2, a circumferential weld 4 formed by laser welding or friction welding constitutes the connecting layer 3, so that the differential case body 1 and the fixed engaging sleeve 2 are fixedly connected together.
The specific method comprises the following steps:
1. the differential case body 1 and the fixed meshing sleeve 2 are welded through laser welding or friction welding, a layer of circumferential welding seam 4 is formed around the outer periphery of the interface of the two, and the circumferential welding seam 4 forms a connecting layer 3. Whether a welding rod is used or not can be selected during laser welding, friction welding is high-temperature fusion, and the formed circumferential welding seam 4 is made of alloy materials.
2. And (3) processing the blank obtained after the differential case body 1 and the fixed meshing sleeve 2 are connected together to the size of a finished product according to the drawing requirements.
In the embodiment shown in fig. 3, the connecting layer 3 is formed by insert composite casting to form an insert casting composite 5, so that the differential case body 1 and the fixed engaging sleeve 2 are fixedly connected together.
The specific method comprises the following steps:
1. the fixed meshing sleeve 2 is embedded in a casting sand core or a mould of the differential case body 1, and molten ductile iron or other low-cost materials meeting performance requirements are added for composite casting to form a whole finally. An embedded casting compound body 5 is formed at the interface of the differential case body 1 and the fixed engaging sleeve 2 through composite casting to form a connecting layer 3. The embedded casting composite keeps the original components on the two sides of the interface of the forged steel and the ductile iron, and generates metallurgical bonding of a transition layer at the interface, so that the composite material has the composite effect of the two materials and is tightly and reliably connected.
2. And (3) processing a combined body blank formed by connecting the differential case body 1 and the fixed meshing sleeve 2 together to a finished product size according to the drawing requirement.
The utility model discloses compare in current pure forged steel spare differential case, under the assurance reliability prerequisite, can realize falling heavy 7% ~ 10%, reduce cost 12% ~ 15%, realized lightweight, low cost.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (3)
1. A bimetallic differential carrier housing, characterized by: the differential mechanism comprises a differential mechanism shell body (1) and a fixed meshing sleeve (2), wherein the differential mechanism shell body (1) and the fixed meshing sleeve (2) are made of different materials respectively, a connecting layer (3) is arranged in the middle of the differential mechanism shell body, the differential mechanism shell body (1) is made of nodular cast iron, the fixed meshing sleeve (2) is made of forged steel, and one end of the differential mechanism shell body (1) is fixedly connected with one end of the fixed meshing sleeve (2) through the connecting layer (3).
2. A bimetallic differential carrier case as in claim 1, wherein: and a circumferential welding seam (4) is arranged between the fixed meshing sleeve (2) and the differential case body (1), the circumferential welding seam (4) integrates the differential case body (1) and the fixed meshing sleeve (2) by laser welding or friction welding, a layer of circumferential welding seam (4) is formed on the periphery of an interface of the circumferential welding seam (4), and the circumferential welding seam (4) forms a connecting layer (3).
3. A bimetallic differential carrier case as in claim 1, wherein: an embedded casting complex (5) is arranged between the fixed meshing sleeve (2) and the differential case body (1), the embedded casting complex (5) integrates the fixed meshing sleeve (2) and the differential case body (1) by embedded composite casting, a layer of embedded casting complex (5) is formed at the interface of the embedded casting complex (5), and the embedded casting complex (5) forms a connecting layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222187644.9U CN218207678U (en) | 2022-08-19 | 2022-08-19 | Double-metal differential case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222187644.9U CN218207678U (en) | 2022-08-19 | 2022-08-19 | Double-metal differential case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218207678U true CN218207678U (en) | 2023-01-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222187644.9U Active CN218207678U (en) | 2022-08-19 | 2022-08-19 | Double-metal differential case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218207678U (en) |
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2022
- 2022-08-19 CN CN202222187644.9U patent/CN218207678U/en active Active
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