CN201651254U - Partial shell body structure for speed changer of hybrid-power saloon car - Google Patents
Partial shell body structure for speed changer of hybrid-power saloon car Download PDFInfo
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- CN201651254U CN201651254U CN2010203007635U CN201020300763U CN201651254U CN 201651254 U CN201651254 U CN 201651254U CN 2010203007635 U CN2010203007635 U CN 2010203007635U CN 201020300763 U CN201020300763 U CN 201020300763U CN 201651254 U CN201651254 U CN 201651254U
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- wall
- section
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- curve
- inclined wall
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Abstract
The utility model provides a partial shell body structure for a speed changer of a hybrid-power saloon car, which belongs to the technical field of the speed changer and comprises a front shell body and a rear shell body, wherein the front shell body and the rear shell body are sealed in a glued manner and are connected by a bolt. As partial front and rear shell bodies respectively adopt the structures of an oblique wall and a bent wall, the partial shell body structure avoids large-plane walls on the shell bodies non-beneficial for absorbing gear vibration and noise at the same time as being convenient for casting and mechanical processing. Compared with the prior art, the partial shell body structure is improved in rigidity and intensity.
Description
Technical field
The utility model relates to a kind of structure of speed changer technical field, specifically is a kind of housing partial structurtes of hybrid power car speed changer.
Background technique
The housing of existing hybrid power car speed changer, comprise front case and rear case, the housing partial structurtes that they surround differential mechanism can have two kinds of forms, a kind of main being joined by big planar wall and perpendicular wall transition constitutes, and another kind mainly joins by inclined wall or curved wall with its off plumb wall transition and constitutes.Before a kind of partial structurtes design model simple, stretching by fundamental curve and revolution can be shaped.The back a kind of partial structurtes by two curves (bus) as trajectory, on these two curves, get several points respectively, connect the point on these two curves nearby, make several plain lines, both formed trajectory by modeling tool, cross the curved surface of plain line again, this curved surface thickens, and just obtains the local dip wall of housing; Perhaps stretched by the both sides of a curve along plane, curve place, the curved surface of formation is crossing with the wall perpendicular to the shell flange limit, obtains the local curved surface of housing after the pruning, and this curved surface thickens and promptly obtains housing local buckling wall.
Find that through retrieval the forward and backward housing of existing hybrid power car speed changer all has big planar wall structure to prior art, typical in the Prius of Toyota hybrid power car case of transmission.The shortcoming of its partial structurtes is as follows: 1, electronic drive unit (ELECTRIC DRIVE UNIT, EDU) there are the partial structurtes of big planar wall in front case, the planeness that machining is big is relatively poor, and the outside must add a lot of crisscross stiffening ribs, just can remedy the relatively poor defective of planeness.2, have big planar wall partial structurtes around the differential bearing hole of rear case, the planeness that machining is big is relatively poor, must increase high and thick stiffening rib, just can remedy the defective of planeness difference, and casting is easy to generate subsurface defect.
The model utility content
The utility model is at the prior art above shortcomings, a kind of housing partial structurtes of hybrid power car speed changer are provided, be convenient to cast with machining in, avoid having on the housing the big planar wall that is unfavorable for absorbing gear vibration and noise, compared with prior art, rigidity and intensity are improved.
The utility model is achieved through the following technical solutions, and the utility model comprises: front case and be attached thereto the rear case that connects, wherein:
Described front case comprises: first vertical wall segments, main inclined wall part, inferior inclined wall part, main inclined wall part is connected by the first round-corner transition wall section with first vertical wall segments, and the first round-corner transition wall section and final gear are at a distance of 14～48mm.Be used to place differential mechanism in the described main inclined wall part, be used to place the ISG motor stator in described first vertical wall segments
Described rear case comprises: second vertical wall segments, principal curvature wall section, inferior curved wall part, and the principal curvature wall section is connected by the second round-corner transition wall section with second vertical wall segments, and the second round-corner transition wall section and differential mechanism are at a distance of 18～86mm.Be used to place differential mechanism in the described principal curvature wall section, be used to place the TM motor stator in the described vertical wall.
Described main inclined wall portion branch comprises: the big diametal curve of main inclined wall, the little diametal curve of main inclined wall and plain line.The big diametal curve of main inclined wall satisfies: R
1=R
Fdg+ Δ, wherein: R
FdgBe final gear tooth top radius, Δ be gear teeth tips to the spacing between the inner walls, Δ satisfies 8～12mm; The little diametal curve of main inclined wall satisfies: R
2=R
Db+ t, wherein: R
DbBe the differential bearing exradius, t is the housing wall thickness, and t satisfies 3～7mm.
The section of described principal curvature wall section is the housing section curve, wherein: H
1Be the minimum range between housing section curve and front case and the rear case flask joint, satisfy: H
1=H
Db, H
DbBe the distance between differential bearing installing and locating face and front case and the rear case flask joint; R
3Be the radius of arc of housing section curve, satisfy: R
3=5.7R
Fdg, wherein: R
FdgBe final gear tooth top radius; L is that the distance between the differential mechanism axis is arrived in the center of circle of housing section curve circular arc, satisfies: L=1.1R
Fdg
The utility model has avoided having the big planar wall that is unfavorable for absorbing gear vibration and noise on the prior art middle shell, the single part quality is slightly reduced, the complexity of parts locally structure does not improve, and foundry goods is easy to be shaped, and housing rigidity and intensity are improved.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 carries out improved housing explanatory drawing to shape;
Wherein: Fig. 2 a is the front case schematic representation, and Fig. 2 b is the rear case schematic representation.
Fig. 3 is the front case curve shows figure of the utility model structure profile.
Fig. 4 is the rear case curve shows figure of the utility model structure profile.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: front case 1 and rear case 2, wherein: gluing sealing and connect between front case 1 and rear case 2 flanged surfaces by bolt.
Shown in Fig. 2 a, described front case 1 comprises: first vertical wall segments 3, main inclined wall part 4, inferior inclined wall part 5 and the first round-corner transition wall section 6, wherein: (transition wall 6 of R5～R10) is between the main inclined wall part 4 and first vertical wall segments 3 for first fillet, and be attached thereto respectively and connect, the first round-corner transition wall section 6 and final gear are at a distance of 14～48mm.Be used to place differential mechanism in the described main inclined wall part 4, be used to place the ISG motor stator in described first vertical wall segments 3.
Shown in Fig. 2 b, described rear case 2 comprises: second vertical wall segments 7, principal curvature wall section 8, inferior curved wall part 9 and the second round-corner transition wall section 10, wherein: (transition wall 10 of R5～R10) is between the principal curvature wall section 8 and second vertical wall segments 7 for second fillet, and be attached thereto respectively and connect, the second round-corner transition wall section 10 and differential mechanism are at a distance of 18～86mm.Be used to place differential mechanism in the described principal curvature wall section 8, be used to place the TM motor stator in the described vertical wall.
As Fig. 3, the curved surface constituting component of described main inclined wall part 4 comprises: the big diametal curve 11 of main inclined wall, main inclined wall path curve 12 and plain line 13, wherein: the big diametal curve 11 of main inclined wall satisfies: R
1=R
Fdg+ Δ, wherein: R
FdgBe final gear tooth top radius, Δ be gear teeth tips to the spacing between the inner walls, Δ is 12mm; Main inclined wall path curve 12 satisfies: R
2=R
Db+ t, wherein: R
DbBe the differential bearing exradius, t is the housing wall thickness, and t is 5mm.
As shown in Figure 4, the section of described principal curvature wall section 8 is a housing section curve 14, wherein: H
1Be the minimum range between housing section curve 14 and front case 1 and rear case 2 flask joints, satisfy: H
1=H
Db, H
DbBe the distance between differential bearing installing and locating face and front case 1 and rear case 2 flask joints; R
3Be the radius of arc of housing section curve 14, satisfy: R
3=5.7R
Fdg, wherein: R
FdgBe final gear tooth top radius; L is that the distance between the differential mechanism axis is arrived in the center of circle of housing section curve 14 circular arcs, satisfies: L=1.1R
Fdg
Present embodiment does not have under the prerequisite of raising in the complexity of parts locally structure, to case of transmission, particularly the housing of hybrid power car speed changer has been done improvement, partial structurtes around front case and the rear case differential mechanism are designed to inclined wall and curved wall respectively, make foundry goods be easy to be shaped, the single part quality reduces, and housing rigidity and intensity are improved.It is the ZL104-GB/T1173 aluminum alloy material of 225MPa that tensile strength is adopted in design.Improved design is by cae analysis, and the maximum Mises stress of housing is 120MPa, is far smaller than Tensile strength.
Claims (3)
1. the housing partial structurtes of a hybrid power car speed changer comprise: front case and be attached thereto the rear case that connects is characterized in that:
Described front case comprises: first vertical wall segments, main inclined wall part, inferior inclined wall part and the first round-corner transition wall section, wherein: the first round-corner transition wall section also is attached thereto respectively between main inclined wall part and inferior inclined wall portion branch and connects, and the first round-corner transition wall section and final gear are at a distance of 14～48mm;
Described rear case comprises: second vertical wall segments, principal curvature wall section, inferior curved wall part and the second round-corner transition wall section, wherein: the second round-corner transition wall section also is attached thereto respectively between principal curvature wall section and inferior curved wall portion branch and connects, and the second round-corner transition wall section and differential mechanism are at a distance of 18～86mm.
2. the housing partial structurtes of hybrid power car speed changer according to claim 1 is characterized in that, described main inclined wall portion branch comprises: the big diametal curve of main inclined wall, the little diametal curve of main inclined wall, wherein: the big diametal curve of main inclined wall satisfies: R
1=R
Fdg+ Δ, R
FdgBe final gear tooth top radius, Δ be gear teeth tips to the spacing between the inner walls, Δ satisfies 8～12mm; The little diametal curve of main inclined wall satisfies: R
2=R
Db+ t, wherein: R
DbBe the differential bearing external diameter, t is the housing wall thickness, and t satisfies 3～7mm.
3. the housing partial structurtes of hybrid power car speed changer according to claim 1 is characterized in that, the section of described principal curvature wall section is the housing section curve, wherein: H
1Be the minimum range between housing section curve and front case and the rear case flask joint, satisfy: H
1=H
Db, H
DbBe the distance between differential bearing installing and locating face and front case and the rear case flask joint; R3 is the radius of arc of housing section curve, satisfies: R
3=5.7R
Fdg, wherein: R
FdgBe final gear tooth top radius; L is that the distance between the differential mechanism axis is arrived in the center of circle of housing section curve circular arc, satisfies: L=1.1R
Fdg
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203007635U CN201651254U (en) | 2010-01-15 | 2010-01-15 | Partial shell body structure for speed changer of hybrid-power saloon car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203007635U CN201651254U (en) | 2010-01-15 | 2010-01-15 | Partial shell body structure for speed changer of hybrid-power saloon car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651254U true CN201651254U (en) | 2010-11-24 |
Family
ID=43116489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203007635U Expired - Fee Related CN201651254U (en) | 2010-01-15 | 2010-01-15 | Partial shell body structure for speed changer of hybrid-power saloon car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070986A (en) * | 2013-03-28 | 2014-10-01 | 比亚迪股份有限公司 | Hybrid power assembly machine body and automobile using same |
-
2010
- 2010-01-15 CN CN2010203007635U patent/CN201651254U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070986A (en) * | 2013-03-28 | 2014-10-01 | 比亚迪股份有限公司 | Hybrid power assembly machine body and automobile using same |
| CN104070986B (en) * | 2013-03-28 | 2017-02-08 | 比亚迪股份有限公司 | Hybrid power assembly machine body and automobile using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20180115 |