CN220302665U - Differential mechanism - Google Patents
Differential mechanism Download PDFInfo
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- CN220302665U CN220302665U CN202321907272.0U CN202321907272U CN220302665U CN 220302665 U CN220302665 U CN 220302665U CN 202321907272 U CN202321907272 U CN 202321907272U CN 220302665 U CN220302665 U CN 220302665U
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- planetary gear
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- gear
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- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000004323 axial length Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The application discloses differential mechanism includes: a sun gear having a first bore therethrough, the axis of the first bore coinciding with the axis of the sun gear; the two half shafts are arranged at one ends of the half shafts, the two half shafts are respectively arranged at two sides of the sun gear, the supporting sections of the two half shafts extend into the first holes, and the supporting sections are used for providing support for the sun gear. The support section can provide comparatively stable support for the sun gear, and the differential mechanism can not change sun gear and driven gear interlock condition along with planetary bevel gear's wearing and tearing after long-time operation, simultaneously, compare in the sun gear along the axial setting boss, the structural design of support section is convenient for reduce the quality of sun gear in order to improve differential mechanism's life and transmission efficiency on the semi-axis.
Description
Technical Field
The utility model relates to the technical field of gearboxes, in particular to a differential mechanism.
Background
The differential is a mechanism capable of rotating left and right (or front and rear) drive wheels at different rotational speeds. The differential mechanism has the function of enabling the left wheel and the right wheel to roll at different rotation speeds when the automobile turns or runs on uneven road surfaces, namely ensuring that the wheels driven on two sides do pure rolling movement. The differential is arranged for adjusting the rotation speed difference of the left wheel and the right wheel, and is often arranged on a gearbox or a speed reducer to be matched with the gearbox or the speed reducer for use.
The sun gear of the existing differential is arranged in a gearbox or a reduction gearbox and is mainly supported by a planetary gear meshed with the sun gear, or a boss is arranged on the sun gear along the axial direction and is matched with a gearbox body of the gearbox or the reduction gearbox to support the sun gear. Both of these support modes are unstable.
Disclosure of Invention
The present utility model addresses the above-described problems by providing a differential.
The technical scheme adopted by the utility model is as follows:
the application provides a differential comprising:
a sun gear having a first bore therethrough, the axis of the first bore coinciding with the axis of the sun gear;
the two half shafts are arranged at one ends of the half shafts, the two half shafts are respectively arranged at two sides of the sun gear, the supporting sections of the two half shafts extend into the first holes, and the supporting sections are used for providing support for the sun gear.
In actual use, the sun gear rotates around the support section, and the rotation is friction rotation; the support section can provide comparatively stable support for the sun gear, and the differential mechanism can not change sun gear and driven gear interlock condition along with planetary bevel gear's wearing and tearing after long-time operation, simultaneously, compare in the sun gear along the axial setting boss, the structural design of support section is convenient for reduce the quality of sun gear in order to improve differential mechanism's life and transmission efficiency on the semi-axis.
In actual use, the two half shafts in the first hole are not contacted.
When the differential mechanism is actually applied to the gearbox, the gear on the upper-stage output shaft is meshed with the sun gear, so that the sun gear is driven to rotate.
Further, the outer diameters of the supporting sections of the two half shafts are the same.
Further, two half shafts and the sun gear are coaxially arranged.
Further, the planetary gear further comprises a first planetary gear and a second planetary gear,
the two half shafts further comprise connecting sections coaxially connected with the supporting sections, the supporting sections are arranged close to the shaft ends, and the connecting sections are used for installing the first planetary gears and the second planetary gears;
the first planetary gear and the second planetary gear are respectively arranged at two sides of the sun gear.
Further, the planetary gear transmission mechanism further comprises a third planetary gear and a fourth planetary gear, wherein the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear are bevel gears;
the third planetary gear and the fourth planetary gear are respectively embedded on the sun gear, the third planetary gear and the fourth planetary gear are coaxially arranged and respectively arranged at two sides of the first hole, and the axis of the third planetary gear and/or the axis of the fourth planetary gear is vertical to the axis of the sun gear;
the third planetary gear meshes with the first planetary gear and the second planetary gear simultaneously, and the fourth planetary gear meshes with the first planetary gear and the second planetary gear simultaneously.
When in actual use, the third planetary gear and the fourth planetary gear integrally rotate around the axis of the first hole along with the sun gear, and simultaneously, the third planetary gear and the fourth planetary gear respectively keep relative static with the first rotating shaft and the second rotating shaft or rotate around the first rotating shaft and the second rotating shaft according to the rotation condition of the first planetary gear and the second planetary gear.
Further, the sun gear is further provided with a second hole and a third hole penetrating through the sun gear, the second hole and the third hole are respectively arranged on the periphery of the first hole, the first rotating shaft and the second rotating shaft are respectively clamped on the second hole and the third hole, and the third planetary gear and the fourth planetary gear are respectively coaxially arranged on the first rotating shaft and the second rotating shaft.
In the existing differential mechanism structure, a first hole, a second hole and a third hole are not arranged, and when in actual use, the shapes of the sections of the second hole and the third hole are matched with the shapes of the third planetary gear and the fourth planetary gear.
Further, two corresponding first grooves are formed in the hole wall of the second hole and used for clamping the first rotating shaft, two corresponding second grooves are formed in the hole wall of the third hole and used for clamping the second rotating shaft.
When in actual use, the distance between the groove bottom walls of the two corresponding first grooves is equal to the axial length of the first rotating shaft, and the distance between the groove bottom walls of the two corresponding second grooves is equal to the axial length of the second rotating shaft, so that the first rotating shaft and the second rotating shaft are fixed on the sun gear, and the first planetary gear arranged on the first rotating shaft and the second planetary gear arranged on the second rotating shaft are relatively fixed on the sun gear.
Further, the utility model also comprises a first clamping ring and a second clamping ring,
the two half shafts are a first half shaft and a second half shaft respectively, the first planet gears are coaxially arranged on the first half shaft, the supporting section arranged on the first half shaft is a first supporting section, and the connecting section is a first connecting section; the second planet gears are coaxially arranged on the second half shafts;
a first clamping groove is formed in the joint of the first connecting section and the first supporting section, a first shaft shoulder is arranged on one side, away from the first clamping groove, of the first connecting section, and the first clamping ring is arranged on the first clamping groove and matched with the first shaft shoulder to limit the axial movement of the first planet gear on the first half shaft;
the junction of second linkage segment with the second support section is provided with the second draw-in groove, the second linkage segment is kept away from second draw-in groove one side is provided with the second shoulder, the second rand sets up on the second draw-in groove, and with the cooperation of second shoulder, restriction second planetary gear is in axial displacement on the second semi-axis.
Further, the utility model also comprises a third clamping ring and a fourth clamping ring,
a third clamping groove is further formed in the first connecting section, and the third clamping groove and the first clamping groove are respectively arranged on two sides of the first shaft shoulder;
a fourth clamping groove is further formed in the second connecting section, and the fourth clamping groove and the second clamping groove are respectively arranged on two sides of the second shoulder;
the third clamping ring and the fourth clamping ring are respectively clamped on the third clamping groove and the fourth clamping groove and used for further axially limiting the first planetary gear and the second planetary gear.
Further, the first connection section and the second connection section are respectively provided with a first limiting tooth, the first planetary gear and the second planetary gear are respectively provided with a second limiting tooth, and when the first planetary gear and the second planetary gear are respectively penetrated on the first connection section and the second connection section, the first limiting tooth is meshed with the second limiting tooth and respectively used for limiting the first planetary gear to rotate on the first half shaft along the circumferential direction and limiting the second planetary gear to rotate on the second half shaft along the circumferential direction.
In practical application, the differential mechanism structure provided by the utility model has good market prospect and wide market demand, and can be applied to the fields of various mechanical equipment such as automobiles, engineering machinery and the like.
The beneficial effects of the utility model are as follows:
(1) The support section can provide comparatively stable support for the sun gear, and the differential mechanism can not change sun gear and driven gear interlock condition along with planetary bevel gear's wearing and tearing after long-time operation, simultaneously, compare in the sun gear along the axial setting boss, the structural design of support section is convenient for reduce the quality of sun gear in order to improve differential mechanism's life and transmission efficiency on the semi-axis.
(2) The differential mechanism structure provided by the utility model has good market prospect and wide market demand, and can be applied to the fields of various mechanical equipment such as automobiles, engineering machinery and the like.
Drawings
FIG. 1 is a schematic diagram of an axle side construction of a differential in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic view in partial cross-section of the front view of the differential in accordance with the embodiment of the present utility model;
FIG. 3 is an enlarged view of a portion of FIG. 2A;
FIG. 4 is a schematic diagram of the shaft side structure of a sun gear according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of an axle side structure of a first axle shaft in accordance with an embodiment of the present utility model;
fig. 6 is a schematic diagram showing an axial side structure of a first planetary gear according to an embodiment of the present utility model.
The reference numerals in the drawings are as follows:
1. a first half shaft; 101. a first support section; 102. a first connection section; 103. a first clamping groove; 104. a first shoulder; 105. a third clamping groove; 121. the first limiting teeth; 2. a second half shaft; 201. a second support section; 202. a second connection section; 203. a second clamping groove; 204. a second shoulder; 205. a fourth clamping groove; 3. a sun gear; 31. a first hole; 32. a second hole; 321. a first groove; 33. a third hole; 331. a second groove; 4. a first planetary gear; 451. the second limiting teeth; 5. a second planetary gear; 6. a third planetary gear; 7. a fourth planetary gear; 8. a first rotating shaft; 9. a second rotating shaft; 10. a first collar; 11. a second collar; 12. a third collar; 13. and a fourth collar.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present application provides a differential comprising:
a sun gear 3 having a first hole 31 penetrating the sun gear 3, the axis of the first hole 31 being coincident with the axis of the sun gear 3;
the one end of semi-axis has the supporting section, and two semi-axis set up respectively in sun gear 3 both sides, and the supporting section of two semi-axis all stretches into first hole 31, and the supporting section is used for providing the support for sun gear 3.
In actual use, the sun gear 3 rotates around the support section, and the rotation is friction rotation; the support section can provide comparatively stable support for sun gear 3, and the differential mechanism can not change sun gear 3 and driven gear interlock condition along with planetary bevel gear's wearing and tearing after long-time operation, simultaneously, compare in sun gear 3 along the axial setting boss, the structural design of semi-axis upper support section is convenient for reduce sun gear 3's quality in order to improve differential mechanism's life and transmission efficiency.
In this embodiment, the outer diameters of the support sections of the two half shafts are the same.
In this embodiment, the two half shafts and the sun gear 3 are coaxially arranged.
As shown in fig. 2, in the present embodiment, the first planetary gear 4 and the second planetary gear 5 are further included,
the two half shafts also comprise a connecting section coaxially connected with the supporting section, the supporting section is arranged close to the shaft end, and the connecting section is used for installing the first planetary gear 4 and the second planetary gear 5;
the first planetary gears 4 and the second planetary gears 5 are provided on both sides of the sun gear 3, respectively.
In this embodiment, the device further includes a third planetary gear 6 and a fourth planetary gear 7, and the first planetary gear 4, the second planetary gear 5, the third planetary gear 6 and the fourth planetary gear 7 are bevel gears;
the third planetary gear 6 and the fourth planetary gear 7 are respectively embedded on the sun gear 3, the third planetary gear 6 and the fourth planetary gear 7 are coaxially arranged and respectively arranged at two sides of the first hole 31, and the axis of the third planetary gear 6 and/or the axis of the fourth planetary gear 7 are perpendicular to the axis of the sun gear 3;
the third planetary gear 6 is meshed with the first planetary gear 4 and the second planetary gear 5 at the same time, and the fourth planetary gear 7 is meshed with the first planetary gear 4 and the second planetary gear 5 at the same time.
In actual use, the third planetary gear 6 and the fourth planetary gear 7 rotate integrally with the sun gear 3 around the axis of the first hole 31, and simultaneously, according to the rotation conditions of the first planetary gear 4 and the second planetary gear 5, the third planetary gear and the fourth planetary gear remain relatively stationary with the first rotating shaft 8 and the second rotating shaft 9 or rotate around the first rotating shaft 8 and the second rotating shaft 9, respectively.
As shown in fig. 3 and 4, in the present embodiment, the sun gear 3 further includes a first rotating shaft 8 and a second rotating shaft 9, a second hole 32 and a third hole 33 penetrating the sun gear 3 are further provided on the sun gear 3, the second hole 32 and the third hole 33 are respectively provided on the circumference side of the first hole 31, the first rotating shaft 8 and the second rotating shaft 9 are respectively clamped on the second hole 32 and the third hole 33, and the third planetary gear 6 and the fourth planetary gear 7 are respectively coaxially provided on the first rotating shaft 8 and the second rotating shaft 9.
In the conventional differential mechanism, the first hole 31, the second hole 32, and the third hole 33 are not provided, and in actual use, the shapes of the cross sections of the second hole 32 and the third hole 33 are adapted to the shapes of the third planetary gear 6 and the fourth planetary gear 7.
As shown in fig. 4, in the present embodiment, two corresponding first grooves 321 are disposed on the wall of the second hole 32, the first grooves 321 are used for clamping the first rotating shaft 8, two corresponding second grooves 331 are disposed on the wall of the third hole 33, and the second grooves 331 are used for clamping the second rotating shaft 9.
In actual use, the distance between the groove bottom walls of the two corresponding first grooves 321 is equal to the axial length of the first rotating shaft 8, and the distance between the groove bottom walls of the two corresponding second grooves 331 is equal to the axial length of the second rotating shaft 9, so that the first rotating shaft 8 and the second rotating shaft 9 are fixed on the sun gear 3, and the first planetary gear 4 arranged on the first rotating shaft 8 and the second planetary gear 5 arranged on the second rotating shaft 9 are relatively fixed on the sun gear 3.
In the present embodiment, the first groove 321 and the second groove 331 are disposed through the sun gear 3, so as to facilitate the installation and removal of the first rotating shaft 8 and the second rotating shaft 9.
In other embodiments, the first groove 321 and the second groove 331 may not penetrate the sun gear 3, so that the first shaft 8 and the second shaft 9 are more firmly embedded in the first groove 321 and the second groove 331, respectively.
As shown in fig. 1 to 5, in the present embodiment, the present embodiment further includes a first collar 10 and a second collar 11,
the two half shafts are a first half shaft 1 and a second half shaft 2 respectively, a first planetary gear 4 is coaxially arranged on the first half shaft 1, a supporting section arranged on the first half shaft 1 is a first supporting section 101, and a connecting section is a first connecting section 102; the second planet gears 5 are coaxially arranged on the second half shaft 2, wherein the supporting section arranged on the second half shaft 2 is a second supporting section 201, the connecting section is a second connecting section 202;
a first clamping groove 103 is formed in the joint of the first connecting section 102 and the first supporting section 101, a first shaft shoulder 104 is arranged on one side, away from the first clamping groove 103, of the first connecting section 102, and a first clamping ring 10 is arranged on the first clamping groove 103 and is matched with the first shaft shoulder 104 to limit the axial movement of the first planet gear 4 on the first half shaft 1;
the junction of second linkage segment 202 and second supporting segment 201 is provided with second draw-in groove 203, and second linkage segment 202 is kept away from second draw-in groove 203 one side and is provided with second shoulder 204, and second rand 11 sets up on second draw-in groove 203 to cooperate with second shoulder 204, restriction second planetary gear 5 axial displacement on second semi-axis 2.
In this embodiment, a third collar 12 and a fourth collar 13 are also included,
the first connecting section 102 is also provided with a third clamping groove 105, and the third clamping groove 105 and the first clamping groove 103 are respectively arranged at two sides of the first shaft shoulder 104;
the second connecting section 202 is further provided with a fourth clamping groove 205, and the fourth clamping groove 205 and the second clamping groove 203 are respectively arranged at two sides of the second shoulder 204;
the third collar 12 and the fourth collar 13 are respectively engaged with the third engaging groove 105 and the fourth engaging groove 205, and are used for further axially limiting the first planetary gear 4 and the second planetary gear 5.
As shown in fig. 5 and 6, in the present embodiment, the first connection section 102 and the second connection section 202 are provided with first limiting teeth 121, the first planetary gear 4 and the second planetary gear 5 are respectively provided with second limiting teeth 451, and when the first planetary gear 4 and the second planetary gear 5 are respectively threaded on the first connection section 102 and the second connection section 202, the first limiting teeth 121 are meshed with the second limiting teeth 451 and are respectively used for limiting the first planetary gear 4 to rotate on the first half shaft 1 along the circumferential direction and limiting the second planetary gear 5 to rotate on the second half shaft 2 along the circumferential direction.
In the present embodiment, the teeth of the first limiting teeth 121 higher than the first or second connecting section act as the first or second shoulders 104, 204 in order to reduce the axial dimension of the differential.
In practical application, the differential mechanism structure provided by the utility model has good market prospect and wide market demand, and can be applied to the fields of various mechanical equipment such as automobiles, engineering machinery and the like. The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover all equivalent structures as modifications within the scope of the utility model, either directly or indirectly, as may be contemplated by the present utility model.
Claims (10)
1. A differential, comprising:
a sun gear having a first bore therethrough, the axis of the first bore coinciding with the axis of the sun gear;
the two half shafts are arranged at one ends of the half shafts, the two half shafts are respectively arranged at two sides of the sun gear, the supporting sections of the two half shafts extend into the first holes, and the supporting sections are used for providing support for the sun gear.
2. A differential as defined in claim 1, wherein the outer diameters of said support sections of two of said axle shafts are the same.
3. A differential as defined in claim 1, wherein two of said axle shafts and said sun gear are coaxially disposed.
4. A differential as defined in claim 1, further comprising a first planetary gear and a second planetary gear,
the two half shafts further comprise connecting sections coaxially connected with the supporting sections, the supporting sections are arranged close to the shaft ends, and the connecting sections are used for installing the first planetary gears and the second planetary gears;
the first planetary gear and the second planetary gear are respectively arranged at two sides of the sun gear.
5. The differential of claim 4, further comprising a third planetary gear and a fourth planetary gear, wherein said first planetary gear, said second planetary gear, said third planetary gear and said fourth planetary gear are bevel gears;
the third planetary gear and the fourth planetary gear are respectively embedded on the sun gear, the third planetary gear and the fourth planetary gear are coaxially arranged and respectively arranged at two sides of the first hole, and the axis of the third planetary gear and/or the axis of the fourth planetary gear is vertical to the axis of the sun gear;
the third planetary gear meshes with the first planetary gear and the second planetary gear simultaneously, and the fourth planetary gear meshes with the first planetary gear and the second planetary gear simultaneously.
6. The differential of claim 5, further comprising a first shaft and a second shaft, wherein the sun gear is further provided with a second hole and a third hole penetrating the sun gear, the second hole and the third hole are respectively arranged on the circumference side of the first hole, the first shaft and the second shaft are respectively clamped on the second hole and the third hole, and the third planetary gear and the fourth planetary gear are respectively coaxially arranged on the first shaft and the second shaft.
7. The differential mechanism as defined in claim 6, wherein two corresponding first grooves are formed in the wall of the second hole, the first grooves are used for clamping the first rotating shaft, two corresponding second grooves are formed in the wall of the third hole, and the second grooves are used for clamping the second rotating shaft.
8. A differential as defined in claim 4, further comprising a first collar and a second collar,
the two half shafts are a first half shaft and a second half shaft respectively, the first planet gears are coaxially arranged on the first half shaft, the supporting section arranged on the first half shaft is a first supporting section, and the connecting section is a first connecting section; the second planet gears are coaxially arranged on the second half shafts;
a first clamping groove is formed in the joint of the first connecting section and the first supporting section, a first shaft shoulder is arranged on one side, away from the first clamping groove, of the first connecting section, and the first clamping ring is arranged on the first clamping groove and matched with the first shaft shoulder to limit the axial movement of the first planet gear on the first half shaft;
the junction of second linkage segment with the second support section is provided with the second draw-in groove, the second linkage segment is kept away from second draw-in groove one side is provided with the second shoulder, the second rand sets up on the second draw-in groove, and with the cooperation of second shoulder, restriction second planetary gear is in axial displacement on the second semi-axis.
9. A differential as defined in claim 8, further comprising a third collar and a fourth collar,
a third clamping groove is further formed in the first connecting section, and the third clamping groove and the first clamping groove are respectively arranged on two sides of the first shaft shoulder;
a fourth clamping groove is further formed in the second connecting section, and the fourth clamping groove and the second clamping groove are respectively arranged on two sides of the second shoulder;
the third clamping ring and the fourth clamping ring are respectively clamped on the third clamping groove and the fourth clamping groove and used for further axially limiting the first planetary gear and the second planetary gear.
10. The differential of claim 8, wherein the first connecting section and the second connecting section are each provided with a first limiting tooth, the first planetary gear and the second planetary gear are each provided with a second limiting tooth, and when the first planetary gear and the second planetary gear are respectively arranged on the first connecting section and the second connecting section in a penetrating manner, the first limiting tooth is meshed with the second limiting tooth and is respectively used for limiting the first planetary gear to rotate on the first half shaft along the circumferential direction and limiting the second planetary gear to rotate on the second half shaft along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321907272.0U CN220302665U (en) | 2023-07-18 | 2023-07-18 | Differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321907272.0U CN220302665U (en) | 2023-07-18 | 2023-07-18 | Differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220302665U true CN220302665U (en) | 2024-01-05 |
Family
ID=89373871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321907272.0U Active CN220302665U (en) | 2023-07-18 | 2023-07-18 | Differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220302665U (en) |
-
2023
- 2023-07-18 CN CN202321907272.0U patent/CN220302665U/en active Active
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