CN216951531U - Differential mechanism and vehicle - Google Patents
Differential mechanism and vehicle Download PDFInfo
- Publication number
- CN216951531U CN216951531U CN202220096883.0U CN202220096883U CN216951531U CN 216951531 U CN216951531 U CN 216951531U CN 202220096883 U CN202220096883 U CN 202220096883U CN 216951531 U CN216951531 U CN 216951531U
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- case
- differential
- side wall
- wall portion
- half shell
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 240000005002 Erythronium dens canis Species 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model provides a differential and a vehicle, and belongs to the field of vehicle differentials. Characterized by comprising a differential case, wherein the differential case comprises a first half case and a second half case, the first half case and the second half case are connected, one of the first half case and the second half case is provided with a tooth groove, the other of the first half case and the second half case is provided with a convex tooth, and the convex tooth is meshed with the tooth groove; the differential mechanism further comprises a limiting piece, wherein the limiting piece is located between the first half shell and the second half shell, and the limiting piece can limit axial displacement between the first half shell and the second half shell. According to the utility model, one of the first half shell and the second half shell is provided with the tooth groove, the other of the first half shell and the second half shell is provided with the convex tooth, and the convex tooth is meshed with the tooth groove, so that compared with the traditional bolt connection or welding, the problems of bolt loosening, shearing, breakage and removal and the like are solved.
Description
Technical Field
The utility model relates to the field of vehicle differentials, in particular to a differential.
Background
The differential is an important component of a vehicle transmission system, wherein the internal parts of the differential, such as a shell, a bevel gear and the like, are used as basic transmission parts, have the advantages of large contact ratio, stable transmission, strong bearing capacity and the like, and have important significance for carrying out structural optimization on the differential.
The existing differential shell is mainly connected through bolts or welding, but the phenomenon that the bolts of the differential are loosened during working and even sheared under severe working conditions can easily occur through the bolt connection mode, so that the safety and the reliability are reduced; in addition, through welded mode can appear damaging and when the trouble needs the dismantlement maintenance in differential mechanism internals, unable dismantlement can only lead to cost of maintenance to increase through changing the differential mechanism assembly.
Therefore, a new connection method is urgently needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to provide a novel connection for connecting housings between self-sealing differentials.
A further object of the present invention is to make the range of arrangement of the ring gear in the transmission increased.
It is another further object of the present invention to simplify the connection between the differentials.
In particular, the present invention provides a differential characterized by comprising a differential case comprising a first half case and a second half case, the first half case and the second half case being connected, one of the first half case and the second half case having a tooth slot, the other of the first half case and the second half case having a tooth, the tooth engaging with the tooth slot; the differential mechanism further comprises a limiting piece, wherein the limiting piece is positioned between the first half shell and the second half shell, and can limit axial displacement between the first half shell and the second half shell.
Furthermore, one of the first half shell and the second half shell is provided with a limiting groove, the limiting part comprises a limiting snap ring, the limiting part is partially located in the limiting groove, and one end face of the limiting snap ring can be in contact with the end face of the first half shell or the second half shell which is not provided with the limiting groove, so that the first half shell and the second half shell are limited to be separated from the side of the limiting snap ring.
Further, the tooth grooves are formed in the first half shell, the protruding teeth are formed in the second half shell, the inner side end face of the limiting clamping ring is in contact with the outer end face of the part of the second half shell, and the second half shell is limited to be separated from the first half shell from the side where the limiting clamping ring is located.
Further, the first half shell comprises a first side wall portion, the second half shell comprises a second side wall portion, the first side wall portion and the second side wall portion are arranged oppositely, the first side wall portion and the second side wall portion can abut against each other, and the second half shell is limited to be separated from the first half shell from the opposite side of the limiting clamping ring.
Further, the convex teeth are in a face tooth structure or a dog tooth structure, the convex teeth are uniformly distributed in the circumferential direction of the second half shell at intervals, and the tooth grooves are uniformly distributed along the inner wall of the first half shell at intervals.
Furthermore, the first half shell is provided with a first guide part, the first guide part is a guide groove arranged in the first half shell, the second half shell is provided with a second guide part, the second guide part protrudes out of the second side wall part, and the second guide part can extend into the first guide part and be in clearance fit with the first half shell.
Further, the second side wall portion with the second guide portion sets up perpendicularly, the inboard of second guide portion is equipped with leads the oil groove, lead the oil groove with the oil space is led in the guide way cooperation formation, the second side wall portion has the oil passing hole, the oil passing hole runs through the second side wall portion, the oil passing hole with lead the oil space intercommunication, lead the oil space with the inner space intercommunication of differential mechanism casing.
Further, the differential is also provided with a differential gear ring which is fixedly connected with the first half shell or integrally formed with the first half shell.
The utility model also discloses a vehicle comprising the differential gear.
According to the utility model, one of the first half shell and the second half shell is provided with the tooth groove, the other of the first half shell and the second half shell is provided with the convex tooth, the convex tooth is meshed with the tooth groove, and the surface tooth is combined with the matched limiting piece.
Furthermore, the utility model can install the gear ring installation position on the first half shell and the second half shell through a new connection mode, so that the axial position adjustment range is large, namely, the differential gear ring can be arranged in a large range in the transmission.
Furthermore, the connecting structure is connected through the face teeth, compared with the traditional bolt connection or welding, the connecting structure does not need to disassemble a plurality of bolts in a manner similar to a fastening bolt connection manner, does not need to disassemble in a manner similar to a welding connection manner, and is simpler in connection manner.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily to scale. In the drawings:
FIG. 1 is an exploded view of a differential case according to one embodiment of the present invention;
FIG. 2 is a front cross-sectional view of a differential case according to one embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
in the figure: 1-differential housing, 10-first half housing, 100-tooth groove, 101-first side wall portion, 102-first guide portion, 1020-guide groove, 103-limiting groove, 11-second half housing, 110-convex tooth, 111-second side wall portion, 112-second guide portion, 1120-convex ring, 1121-buffer groove, 2-limiting piece and 20-limiting snap ring.
Detailed Description
FIG. 1 is an exploded view of a differential case according to one embodiment of the present invention. In one embodiment, as shown in fig. 1, a differential for a vehicle mainly includes a differential case 1, the differential case 1 includes a first case half 10 and a second case half 11, wherein a tooth slot 100 is provided on the first case half 10, and a protruding tooth 110 engaged with the tooth slot 100 is provided on the second case half 11.
Further, a limiting member 2 is further arranged between the first half shell 10 and the second half shell 11, and the limiting member 2 can limit the first half shell 10 and the second half shell 11, so that the axial displacement of the first half shell 10 and the second half shell 11 after installation and matching can not occur, and the reliability of connection of the differential case 1 is ensured.
In the embodiment, the differential case 1 is connected in the face tooth structure mode, and compared with the traditional process in which the convenience and the safety are higher due to bolt connection or welding, firstly, the phenomenon that bolts of the differential are loosened during working and even the bolts are sheared under severe working conditions easily occurs in the connecting mode of fastening the bolts, so that the safety and the reliability are reduced; and the welded mode, when the differential mechanism inner part appears damage and the trouble needs to dismantle the maintenance, unable dismantlement can only be through changing the differential mechanism assembly.
Further, compared with a connection mode of fastening bolts, the utility model can save bolt parts and has lower cost. Compared with a welding mode, the utility model does not need to be damaged and disassembled during maintenance, thereby reducing the production cost.
It should be noted that the tooth slots 100 may be disposed on the first half shell 10, or may be disposed on the second half shell 11, and the teeth 110 engaged therewith may be correspondingly disposed on the second half shell 11 or the first half shell 10, and may be designed according to actual production requirements, which is not limited herein.
In a further embodiment, as shown in fig. 2 and 3, a limiting groove 103 is further provided on the first half shell 10, the limiting member 2 includes a limiting snap ring 20, a portion of the limiting snap ring 20 is located in the limiting groove 103, and the other end surface of the limiting snap ring 20 is in contact with the second half shell 11 without the limiting groove, so that the connecting firmness is ensured by the limiting snap ring 20 between the first half shell 10 and the second half shell 11, and the second half shell 11 of the first half shell 10 is prevented from being separated from the limiting snap ring 20. In detail, the outer end face of the limit snap ring 20 is disposed in the limit groove 103, and the inner end face of the limit snap ring 20 contacts with a partial outer end face of the second half-shell 11, so that the second half-shell 11 is limited from separating from the first half-shell 10 from the side of the limit snap ring 20.
Further, the first half case 10 further includes a first side wall portion 101, the second half case 11 also includes a second side wall portion 111, the first side wall portion 101 and the second side wall portion 111 are provided to face each other, and the first side wall portion 101 and the second side wall portion 111 can abut against each other to restrict the second half case 11 from being detached from the first half case 10 from the side opposite to the retainer ring 20.
In this embodiment, by providing the matching device of the limiting snap ring 20 and the limiting groove 103, the first half shell 10 and the second half shell 11 will not fall off after the installation is completed, and the firmness of connection between the shells is effectively ensured.
In a further embodiment, the first half shell 10 is further provided with a first guiding portion 102, and the second half shell 11 is provided with a second guiding portion 112, in detail, the first guiding portion 102 is a guiding groove 1020 provided on the first half shell 10, and the second guiding portion 112 includes a convex ring 1120 protruding from the second side wall portion 111, and the second guiding portion 112 can extend into the first guiding portion 102 and be in clearance fit with the first half shell 10.
Further, the second side wall 111 and the second guide portion 112 are vertically disposed, an oil guiding groove 1121 is further disposed inside the second guide portion 112, the oil guiding groove 1121 and the guide groove 1020 cooperate to form an oil guiding space, and the second side wall 111 has an oil passing hole (not shown) penetrating through the entire second side wall 111, one end of the oil passing hole is communicated with the oil guiding space, and the other end of the oil passing hole is communicated with the inside of the differential case 1, so that the oil guiding space is communicated with the inside space of the differential case 1.
In addition, differential mechanism still is equipped with the differential gear ring, differential gear ring and first half casing 10 fixed connection, because differential mechanism casing 1 passes through face tooth structural connection, make differential gear ring have great installation scope for among the traditional mounting process, both can install on first half casing 10, also can install on second half casing 11, thereby make differential gear ring's axial position have adjustment on a great scale, and then make differential gear ring arrange very big scope in the derailleur, of course, differential gear ring also can with first half casing 10 integrated into one piece, specific structure is selected to be confirmed according to actual production situation can.
In one embodiment, as shown in fig. 1, the protruding teeth 110 in the present invention are trapezoidal, but of course, the protruding teeth 110 may also be rectangular, trapezoidal, etc., and in addition, the design requirement may also be satisfied by spline connection, further, the protruding teeth 110 are uniformly distributed at intervals in the circumferential direction of the second half shell 11, and the corresponding tooth sockets 100 are also uniformly distributed at intervals on the inner wall of the first half shell 10, so that the tooth sockets 110 can be engaged with the protruding teeth 100 in a one-to-one correspondence.
The utility model also discloses a vehicle comprising the differential gear.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. A differential comprising a differential case comprising a first half case and a second half case, said first half case and said second half case being connected, one of said first half case and said second half case having a spline, the other of said first half case and said second half case having a spur, said spur engaging said spline; the differential mechanism further comprises a limiting piece, wherein the limiting piece is located between the first half shell and the second half shell, and the limiting piece can limit axial displacement between the first half shell and the second half shell.
2. The differential of claim 1, wherein one of said first half-case and said second half-case is provided with a limit groove, said limit member comprises a limit snap ring, said limit member is partially located in said limit groove, and an end surface of said limit snap ring can be brought into contact with an end surface of said first half-case or said second half-case where no limit groove is provided, to limit the separation of said first half-case and said second half-case from a side where said limit snap ring is located.
3. The differential of claim 2, wherein the first half case is provided with the splines, the second half case is provided with the teeth, and an inner end surface of the retainer ring is in contact with a part of an outer end surface of the second half case to restrict the second half case from being separated from the first half case from a side where the retainer ring is located.
4. The differential of claim 3, wherein the first half casing includes a first side wall portion and the second half casing includes a second side wall portion, the first side wall portion and the second side wall portion being disposed opposite one another, the first side wall portion and the second side wall portion being capable of abutting against one another to restrict the second half casing from disengaging from the first half casing from an opposite side of the retaining ring.
5. The differential of claim 4 wherein said teeth are of face-tooth or dog-tooth configuration, said teeth being evenly spaced circumferentially about said second half-case, said splines being evenly spaced along an inner wall of said first half-case.
6. The differential according to claim 4 or 5, wherein the first case half has a first guide portion which is a guide groove provided in the first case half, and the second case half has a second guide portion which is provided to protrude from the second side wall portion, the second guide portion being capable of protruding into the first guide portion and being in clearance fit with the first case half.
7. The differential according to claim 6, wherein the second side wall portion and the second guide portion are vertically arranged, an oil guide groove is provided inside the second guide portion, the oil guide groove cooperates with the guide groove to form an oil guide space, the second side wall portion has an oil passing hole that penetrates the second side wall portion, the oil passing hole communicates with the oil guide space, and the oil guide space communicates with an inner space of the differential case.
8. The differential of claim 7, further having a differential ring gear fixedly connected or integrally formed with the first case half.
9. A vehicle, characterized in that it comprises a differential according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220096883.0U CN216951531U (en) | 2022-01-14 | 2022-01-14 | Differential mechanism and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220096883.0U CN216951531U (en) | 2022-01-14 | 2022-01-14 | Differential mechanism and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216951531U true CN216951531U (en) | 2022-07-12 |
Family
ID=82316430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220096883.0U Active CN216951531U (en) | 2022-01-14 | 2022-01-14 | Differential mechanism and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216951531U (en) |
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2022
- 2022-01-14 CN CN202220096883.0U patent/CN216951531U/en active Active
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