CN210461591U - Differential mechanism assembly - Google Patents
Differential mechanism assembly Download PDFInfo
- Publication number
- CN210461591U CN210461591U CN201921306125.1U CN201921306125U CN210461591U CN 210461591 U CN210461591 U CN 210461591U CN 201921306125 U CN201921306125 U CN 201921306125U CN 210461591 U CN210461591 U CN 210461591U
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- differential
- driven bevel
- bevel gear
- left shell
- shoulder
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Abstract
The utility model belongs to the field of automobile through axle, and discloses a differential assembly, which comprises a differential left shell and a driven bevel gear, wherein the driven bevel gear is provided with a central round hole, the central round hole is penetrated through by the differential left shell, the differential left shell comprises a left shell body and a shoulder part, and the shoulder part is annularly arranged on the outer wall of the left shell body; a tooth part of the driven bevel gear forms an abutting surface at the central circular hole; wherein the axial length of the shoulder portion is configured to accommodate different mounting distances of the driven bevel gear, and the shoulder portion abuts against the abutment surface and is welded at the junction of the two. The left shell of the differential is processed with shoulders with different axial distances, and the driven bevel gears are abutted against the shoulders, so that the differential is suitable for the driven bevel gears with different mounting distances, and the number of dies of the left shell of the differential is reduced; the driven bevel gear and the differential left shell are welded along the edge, and a structure that bolts are used for connection in the prior art is replaced, so that the number of the bolts is reduced, and the weight of the differential left shell is reduced.
Description
Technical Field
The utility model relates to a car link up axle technical field especially relates to a differential mechanism assembly.
Background
In the domestic automobile axle, different differential left shells need to be adopted according to the change of the reduction ratio for the driven bevel gears of different installation distances are adapted, and the differential left shells are connected with the driven bevel gears by adopting a bolt structure. The structure leads the same series of driving axles to adopt a plurality of differential left shells, thus increasing the cost of the die; the production management cost is increased; increase the material cost of the bolt; increasing the weight of the left case of the differential.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a differential mechanism assembly to solve the driven bevel gear of differential mechanism left shell can not the different installation distance of adaptation and for the not mould that the size leads to of adaptation with high costs, adopt bolted connection to lead to the problem of left shell weight gain simultaneously in the above-mentioned current axle.
To achieve the purpose, the utility model adopts the following technical proposal:
a differential assembly, comprising a differential left casing and a driven bevel gear, the driven bevel gear having a central circular aperture, the central circular aperture being penetrated by a first end of the differential left casing, wherein:
the differential left shell comprises a left shell body and a shoulder part, and the shoulder part is annularly arranged on the outer wall of the second end of the left shell body;
a tooth part of the driven bevel gear forms an abutting surface at the central round hole;
and the axial length of the shoulder portion is configured to accommodate different mounting pitches of the driven bevel gear, and the shoulder portion abuts against the abutting surface and is welded at the junction of the two.
As a preferable mode of the differential assembly described above, the left case body includes a base portion, an extension portion, and a shaft portion, one end of the base portion is connected to the extension portion that gradually narrows, a narrow end of the extension portion is connected to the shaft portion, and the shoulder portion extends from one end of the base portion near the extension portion to the other end.
In a preferred embodiment of the differential assembly, the shoulder portion and the abutment surface are in surface contact with each other.
As a preferable mode of the differential assembly described above, opposite end faces of each of the abutment faces of the shoulder portion and the driven bevel gear are perpendicular to an axial direction of the differential left case.
As a preferable mode of the differential assembly described above, a joint of the abutment surface of the driven bevel gear and the shoulder portion is full-welded in the circumferential direction.
As a preferable mode of the differential assembly described above, the thickness of the tooth portion of the driven bevel gear is gradually reduced radially outward.
As a preferable mode of the differential assembly described above, the tooth portion of the driven bevel gear has a tapered structure.
The differential assembly preferably further comprises a right differential case, wherein the right differential case is opposite to the left differential case and is connected with the left differential case through bolts.
As a preferable mode of the differential assembly described above, the axial length of the shoulder portion is configured such that a portion of the right differential case is located in the central circular hole of the driven bevel gear.
The utility model has the advantages that: the left shell of the differential is processed with shoulders with different axial distances, and the driven bevel gears are abutted against the shoulders, so that the differential is suitable for the driven bevel gears with different mounting distances, and the number of dies of the left shell of the differential is reduced; the driven bevel gear and the differential left shell are welded along the edge, and a structure that bolts are used for connection in the prior art is replaced, so that the number of the bolts is reduced, and the weight of the differential left shell is reduced.
Drawings
FIG. 1 is a schematic structural view of a differential assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of another differential assembly according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of a left differential case of the differential assembly shown in FIG. 2;
fig. 4 is a sectional view of a driven bevel gear of the flexible structure shown in fig. 2.
In the figure:
1-a differential left housing; 2-driven bevel gear; 3-a right differential housing; 11-left shell body; 12-a shoulder portion; 20-a tooth portion; 21-a central circular hole; 22-a butting face; 111-a base; 112-an extension; 113-a shaft portion; 200-cone structure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 or 2, the differential assembly includes a differential left case 1, a driven bevel gear 2, and a differential right case 3, wherein a first end of the differential left case 1 is fitted into a central circular hole 21 of the driven bevel gear 2, and the driven bevel gear 2 and the differential left case 1 are connected by welding, while the differential right case 3 is connected to the differential left case 1 in an opposed manner.
It should be noted that the differential assembly further includes a left and right side gear, a planetary gear, and a gear carrier assembly. When the differential left case 1 and the differential right case 3 are connected to each other in opposition, a cavity is formed in which the above-described components can be accommodated.
It should be noted that the differential left case 1, the driven bevel gear 2 and the differential right case 3 are coaxially arranged.
In this embodiment, differential left side shell 1 is equipped with a plurality of screw relative to the terminal surface of differential right side shell 3, and differential right side shell 3 is equipped with the through-hole that corresponds screw quantity and position relative to the terminal surface of differential left side shell 1, and differential left side shell 1 and differential right side shell 3 are connected through a plurality of bolt, and the bolt correspondence is worn to establish the through-hole of differential right side shell 3 and threaded connection is in the screw of differential left side shell 1.
Referring to fig. 3 to 4, the differential left case 1 includes a left case body 11 and a shoulder portion 12, the shoulder portion 12 is disposed around an outer wall of the left case body 11, and when the driven bevel gear 2 is axially abutted to the differential left case 1, the driven bevel gear 2 may abut against the shoulder portion 12.
Further, the axial length of the shoulder portion 12 determines the mounting distance of the driven bevel gear 2 when it abuts the differential left case 1. As shown in fig. 1 and 2 in combination, the axial length of the shoulder portion 12 in fig. 1 is short, and the distance by which the differential left case 1 extends into the central circular hole 21 of the driven bevel gear 2 is long. The axial length of the shoulder portion 12 in fig. 2 is long, and the distance by which the differential left case 1 projects into the central circular hole 21 of the driven bevel gear 2 is short. Thus, the shoulder portions 12 are provided in different lengths so as to accommodate the mounting distance of the driven bevel gear 2.
In a preferred embodiment, the axial length of the shoulder 12 is set so that a portion of the right differential case 3 is located in the central circular hole 21 of the driven bevel gear 2, so that the length bevel gear 2 simultaneously restricts radial movement of the left differential case 1 and the right differential case 3.
Further, the left housing body 11 includes a base portion 111, an extension portion 112, and a shaft portion 113, one end of the base portion 111 is connected to the extension portion 112 which is gradually narrowed, the other end of the extension portion 112 is connected to the shaft portion 113, and the shoulder portion 12 extends from one end of the base portion 111 near the extension portion 112 to the other end.
It should be noted that the shoulder portion 12 is formed by turning on the base portion 111, that is, after the diameter of the center circular hole 21 of the engaged driven bevel gear 2 and the required installation distance are determined, turning is started from the end of the base portion 111 away from the extension portion 112 and machining is performed in the axial direction toward the extension portion 112, so that the outer diameter of the end of the base portion 111 away from the extension portion 112 is reduced, and the shoulder portion 12 is formed at the end of the base portion 111 close to the extension portion 112.
The tooth part 20 of the driven bevel gear 2 forms an abutting surface 22 at the central round hole 21, when the left shell body 11 extends into the central round hole 21, the abutting surface 22 of the driven bevel gear 2 and the shoulder part 12 form surface contact, and after the surface contact is formed, the stability is better after the driven bevel gear 2 and the left shell body 11 are contacted.
In the present embodiment, the respective opposing end surfaces of the abutment surface 22 and the shoulder portion 12 of the driven bevel gear 2 are perpendicular to the axial direction of the differential left case 1. Since the contact surface 22 of the driven bevel gear 2 is generally a flat surface, the shoulder portion 12 may be formed as a flat surface perpendicular to the axial direction.
Further, the abutment surface 22 of the driven bevel gear 2 and the shoulder portion 12 are connected at the joint by welding.
Further, in order to increase the stability of welding, the driven bevel gear 2 and the shoulder portion 12 are welded together by full-length welding at the joint between the abutment surface 22 and the shoulder portion 12.
Further, the tooth portion 20 of the driven bevel gear 2 has a tapered structure 200 for reducing the weight of the driven bevel gear 2.
In the differential assembly, the differential left shell 1 is processed into shoulder parts 12 with different axial distances, and the driven bevel gear 2 is abutted against the shoulder parts 12, so that the differential assembly is suitable for driven bevel gears with different mounting distances 2, and the number of dies of the differential left shell 1 is reduced; the driven bevel gear 2 and the differential left shell 1 are welded along the edges, and the structure that the driven bevel gear 2 and the differential left shell 1 are connected by using bolts in the prior art is replaced, so that the number of the bolts is reduced, and the weight of the differential left shell 1 is reduced.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a differential mechanism assembly, includes differential mechanism left side shell (1) and driven bevel gear (2), driven bevel gear (2) have central round hole (21), wear to establish the first end of differential mechanism left side shell (1) central round hole (21), its characterized in that:
the differential left shell (1) comprises a left shell body (11) and a shoulder part (12), wherein the shoulder part (12) is machined on the second end outer wall of the left shell body (11);
a tooth part (20) of the driven bevel gear (2) forms an abutting surface (22) at the central round hole (21);
wherein the axial length of the shoulder portion (12) is configured to accommodate different mounting distances of the driven bevel gear (2), and the shoulder portion (12) abuts against the abutting surface (22) and is welded at the junction of the two.
2. A differential assembly according to claim 1, wherein the left case body (11) includes a base portion (111), an extension portion (112), and a shaft portion (113), one end of the base portion (111) being connected to the extension portion (112) which is gradually narrowed, a narrow end of the extension portion (112) being connected to the shaft portion (113), and the shoulder portion (12) extending from one end of the base portion (111) near the extension portion (112) to the other end.
3. A differential assembly according to claim 2, wherein surface contact is formed between the shoulder portion (12) and the abutment surface (22).
4. A differential assembly according to claim 3, wherein the abutment faces (22) of the shoulder portion (12) and the driven bevel gear (2) each have opposite end faces perpendicular to the axial direction of the differential left case (1).
5. A differential assembly according to claim 4, wherein the junction of the abutment surface (22) of the driven bevel gear (2) and the shoulder portion (12) is welded in a circumferential full weld.
6. A differential assembly according to claim 2, wherein the thickness of the tooth portion (20) of the driven bevel gear (2) is gradually reduced radially outwardly.
7. A differential assembly according to claim 1, wherein the teeth (20) of the driven bevel gear (2) have a conical surface structure (200).
8. A differential assembly according to claim 2, further comprising a right differential case (3), said right differential case (3) being opposed to said left differential case (1) and being connected by bolts.
9. A differential assembly according to claim 8, characterized in that the axial length of the shoulder portion (12) is configured such that part of the differential right case (3) is located in the central circular hole (21) of the driven bevel gear (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921306125.1U CN210461591U (en) | 2019-08-13 | 2019-08-13 | Differential mechanism assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921306125.1U CN210461591U (en) | 2019-08-13 | 2019-08-13 | Differential mechanism assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461591U true CN210461591U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921306125.1U Active CN210461591U (en) | 2019-08-13 | 2019-08-13 | Differential mechanism assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210461591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236733A (en) * | 2021-05-25 | 2021-08-10 | 一汽解放汽车有限公司 | Differential mechanism structure and car |
-
2019
- 2019-08-13 CN CN201921306125.1U patent/CN210461591U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236733A (en) * | 2021-05-25 | 2021-08-10 | 一汽解放汽车有限公司 | Differential mechanism structure and car |
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