CN211259335U - Differential mechanism cross axle - Google Patents
Differential mechanism cross axle Download PDFInfo
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- CN211259335U CN211259335U CN201921867563.5U CN201921867563U CN211259335U CN 211259335 U CN211259335 U CN 211259335U CN 201921867563 U CN201921867563 U CN 201921867563U CN 211259335 U CN211259335 U CN 211259335U
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Abstract
The utility model discloses a differential mechanism cross, including the major axis, the constant head tank has been seted up about the axial plane symmetry in the central part of major axis, and is two the through-hole has been seted up, one to the central part of constant head tank keyway connection has minor axis one, another in the constant head tank keyway connection has minor axis two, run through in the minor axis two is connected with the bolt to go into minor axis one at the other end threaded connection of bolt. The utility model discloses an adopt major axis and minor axis connected's structural style, realized the cross axle shaping and connect to adopt bolted connection's mode fastening, not only simplified processing technology, guaranteed structural stability simultaneously, prevented the fracture problem of axis body, further reduced manufacturing cost.
Description
Technical Field
The utility model relates to a cross technical field specifically is a differential mechanism cross.
Background
The traditional differential spider is formed by integral forging, the middle part of the traditional differential spider is of a ring structure, 4 shaft bodies with the same length are circumferentially connected, and because the shaft bodies are stressed in long-term use, cracks are easy to appear at the joints of the shaft bodies and the rings, and the fracture problem can occur in severe cases, so that the maintenance cost is undoubtedly increased; meanwhile, the forging process adopted by the existing cross shaft has high forging requirement and relatively complex structure, so that the production cost is further increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a differential mechanism cross to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a differential spider comprises a long shaft, wherein positioning grooves are symmetrically formed in the center of the long shaft about a middle shaft surface, a through hole is formed in the center of each positioning groove, a first short shaft is connected to a key groove in one positioning groove, a second short shaft is connected to a key groove in the other positioning groove, a bolt is connected in the second short shaft in a penetrating mode, and the other end of the bolt is in threaded connection with the first short shaft.
The long shaft, the first short shaft and the second short shaft are all cylinders with the same diameter.
The distance between two separated end parts of the first short shaft and the second short shaft is equal to the length of the long shaft.
The first short shaft and the second short shaft are both of a stepped shaft structure, and one end with a small shaft diameter is connected into the positioning groove.
The depth of the positioning groove is less than or equal to one fourth of the diameter of the long shaft.
The bolt comprises a rod body and an end part connected with the rod body, the diameter of the rod body is the same as the inner diameter of the through hole, and a thread surface used for being in threaded connection with a first short shaft is formed at the front end of the rod body.
And a positioning hole which is formed along the shaft diameter of the short shaft II is formed in the short shaft II, a stepped hole matched with the size of the end part is formed at one end of the positioning hole, the depth of the stepped hole is greater than or equal to the height of the end part, and the inner diameter of the positioning hole is equal to the diameter of the bolt.
And a threaded hole for connecting a bolt in a threaded manner is formed in the central axis of the first short shaft, and the depth of the threaded hole is greater than or equal to half of the length of the first short shaft.
The bolt is connected into the threaded hole in a threaded mode, and the top end of the bolt extends to the bottommost portion of the threaded hole.
According to the above technical scheme, the utility model discloses an adopt the structural style that major axis and minor axis are connected, realized the cross axle shaping and connect to adopt bolted connection's mode fastening, not only simplified processing technology, guaranteed structural stability simultaneously, prevented the fracture problem of axis body, further reduced manufacturing cost.
Drawings
FIG. 1 is a sectional view of the present invention;
FIG. 2 is a schematic view of the long axis structure of the present invention;
FIG. 3 is a cross-sectional view of the short shaft of the present invention;
FIG. 4 is a cross-sectional view of the short shaft of the present invention;
fig. 5 is a side sectional view of the bolt of the present invention.
In the figure: 1 major axis, 11 locating grooves, 12 through holes, 2 minor axis I, 21 stepped axis I, 22 threaded holes, 3 minor axis II, 31 stepped axis II, 32 locating holes, 321 stepped holes, 4 bolts, 41 rod bodies, 42 threaded surfaces and 43 end parts.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
1-5, the differential cross shaft comprises a long shaft 1, wherein the center of the long shaft 1 is symmetrically provided with two positioning grooves 11 about a middle shaft plane, the center of the two positioning grooves 11 is provided with a through hole 12 vertical to the axis of the long shaft 1, a key groove in one positioning groove 11 is connected with a first short shaft 2, a key groove in the other positioning groove 11 is connected with a second short shaft 3, and the arrangement of the through hole 12 vertical to the axis of the long shaft 1 can ensure that the first short shaft 2 and the second short shaft 3 are both vertical to the long shaft 1 and the long shaft 1, the first short shaft 2 and the second short shaft 3 are all located on the same horizontal plane after the first short shaft 2 and the second; the through connection has bolt 4 in the second minor axis 3, and in the other end threaded connection of bolt 4 inserts minor axis one 2, realize major axis 1 through this kind of connected mode, the fixed of minor axis one 2 and minor axis two 3, and simultaneously, minor axis one 2 and the equal adaptation of minor axis two 3 constant head tank 11's size, stability after the connection has further been promoted, it needs to explain, traditional cross axle is the integrated into one piece's component, the central part is the ring, its circumference is formed with four minor axes that are cross distribution, there is minor axis and the problem that the crackle appears in ring portion after long-term the use, lead to axis body and ring department fracture when serious, this embodiment has solved minor axis and ring department easily appearing cracked problem in the prior art through the structural style that adopts two minor axes to connect major axis 1.
Further, the major axis 1, the minor axis one 2 and the minor axis two 3 are all cylinders with the same diameter.
Furthermore, the distance between two separated end parts of the short shaft I2 and the short shaft II 3 is equal to the length of the long shaft 1, so that the structural symmetry of the differential cross shaft is ensured.
Further, the first short shaft 2 and the second short shaft 3 are both of a stepped shaft structure, and one end with a small shaft diameter is connected into the positioning groove 11, specifically, a first stepped shaft 21 for key groove connection into the positioning groove 11 is formed at the end of the first short shaft 2, a second stepped shaft 31 for key groove connection into the positioning groove 11 is formed at the end of the second short shaft 3, and the stepped shafts with smaller diameters are adopted to be connected in order to be capable of being matched with the positioning groove 11.
Furthermore, the depth of the positioning groove 11 is less than or equal to one fourth of the diameter of the long shaft 1, the depth of the positioning groove 11 is not too deep easily, and the long shaft 1 is ensured to have certain strength and not to break.
Further, the bolt 4 includes a rod body 41 and an end 43 connected to the rod body 41, it should be noted that a hexagon socket is formed in the end 43 for fastening and mounting the bolt 4; the diameter of the rod body 41 is the same as the inner diameter of the through hole 12, a thread surface 42 for being in threaded connection with the short shaft I2 is formed at the front end of the rod body 41, the bolt 4 is used for fixedly connecting the long shaft 1, the short shaft I2 and the short shaft II 3, and looseness after connection can be prevented through matching of sizes; meanwhile, a positioning hole 32 formed along the shaft diameter of the short shaft II 3 is formed in the short shaft II, a stepped hole 321 matched with the end 43 in size is formed at one end of the positioning hole 32, the depth of the stepped hole 321 is larger than or equal to the height of the end 43, and the inner diameter of the positioning hole 32 is equal to the diameter of the bolt 4.
Furthermore, a threaded hole 22 for connecting the bolt 4 in a threaded manner is formed in the central axis of the first short shaft 2, the depth of the threaded hole 22 is greater than or equal to half of the length of the first short shaft 2, meanwhile, the bolt 4 is connected into the threaded hole 22 in a threaded manner, the top end of the bolt extends to the bottommost part of the threaded hole 22, and the structural design is designed to ensure that the first short shaft 2 and the second short shaft 3 have the best connection strength after the bolt 4 is connected.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (9)
1. A differential cross, characterized by: the positioning device comprises a long shaft (1), positioning grooves (11) are symmetrically formed in the center of the long shaft (1) about a middle axial plane, through holes (12) perpendicular to the axis of the long shaft (1) are formed in the centers of the two positioning grooves (11), a first short shaft (2) is connected to a key groove in one positioning groove (11), a second short shaft (3) is connected to a key groove in the other positioning groove (11), a bolt (4) is connected in the second short shaft (3) in a penetrating mode, and the other end of the bolt (4) is in threaded connection with the first short shaft (2).
2. A differential cross as defined in claim 1, wherein: the long shaft (1), the short shaft I (2) and the short shaft II (3) are all cylinders with the same diameter.
3. A differential cross as defined in claim 1, wherein: the distance between two separated end parts of the short shaft I (2) and the short shaft II (3) is equal to the length of the long shaft (1).
4. A differential cross as defined in claim 1, wherein: the first short shaft (2) and the second short shaft (3) are both of a stepped shaft structure, and one end with a small shaft diameter is connected into the positioning groove (11).
5. A differential cross as defined in claim 1, wherein: the depth of the positioning groove (11) is less than or equal to one fourth of the diameter of the long shaft (1).
6. A differential cross as defined in claim 1, wherein: the bolt (4) comprises a rod body (41) and an end portion (43) connected with the rod body (41), the diameter of the rod body (41) is the same as the inner diameter of the through hole (12), and a thread surface (42) used for being in threaded connection with the short shaft I (2) is formed at the front end of the rod body (41).
7. The differential cross of claim 6, wherein: a positioning hole (32) formed along the axial diameter of the short shaft II (3) is formed in the short shaft II, a stepped hole (321) matched with the size of the end portion (43) is formed in one end of the positioning hole (32), the depth of the stepped hole (321) is larger than or equal to the height of the end portion (43), and the inner diameter of the positioning hole (32) is equal to the diameter of the bolt (4).
8. A differential cross as defined in claim 1, wherein: and a threaded hole (22) for connecting the bolt (4) in a threaded manner is formed in the central axis of the first short shaft (2), and the depth of the threaded hole (22) is greater than or equal to half of the length of the first short shaft (2).
9. A differential cross as defined in claim 8, wherein: the bolt (4) is connected into the threaded hole (22) in a threaded manner, and the top end of the bolt extends to the bottommost part of the threaded hole (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867563.5U CN211259335U (en) | 2019-10-31 | 2019-10-31 | Differential mechanism cross axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867563.5U CN211259335U (en) | 2019-10-31 | 2019-10-31 | Differential mechanism cross axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259335U true CN211259335U (en) | 2020-08-14 |
Family
ID=71988105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921867563.5U Active CN211259335U (en) | 2019-10-31 | 2019-10-31 | Differential mechanism cross axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211259335U (en) |
-
2019
- 2019-10-31 CN CN201921867563.5U patent/CN211259335U/en active Active
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