CN203395144U - Gearbox casing structure based on topological optimization - Google Patents
Gearbox casing structure based on topological optimization Download PDFInfo
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- CN203395144U CN203395144U CN201320368368.4U CN201320368368U CN203395144U CN 203395144 U CN203395144 U CN 203395144U CN 201320368368 U CN201320368368 U CN 201320368368U CN 203395144 U CN203395144 U CN 203395144U
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Abstract
The utility model provides a gearbox casing structure based on topological optimization, and relates to the technical field of an automobile. The gearbox casing structure mainly realize the effect of light weight design of a gearbox casing, and comprises a bearing seat reinforcing assembly, a clutch middle shaft bearing seat reinforcing assembly, an output shaft bearing reinforcing assembly, an output shaft reinforcing assembly and a suspension reinforcing assembly, wherein the bearing seat reinforcing assembly, the clutch middle shaft bearing seat reinforcing assembly and the output shaft bearing reinforcing assembly are respectively arranged in a differential mechanism bearing seat region, a clutch region and an output shaft bearing region of a gearbox front casing, and the output shaft reinforcing assembly and the suspension reinforcing assembly are respectively arranged in a differential mechanism output shaft region and a suspension region of a gearbox back casing. The gearbox casing structure based on topological optimization has the advantages that the weight of the front casing can be reduced by 5.6 percent, the intensity of the front casing can be improved by 21.9 percent, and the rigidity of the front casing can be improved by 9.5 percent; the weight of the back casing can be reduced by 4.0 percent, the intensity of the back casing can be improved by 23.9 percent, and the rigidity is basically unchanged.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of transmission housing body structure, particularly a kind of transmission housing body structure based on topological optimization.
Background technique
Car load lightweight is the target that automobile industry is optimized always, if can guarantee that in the light-weighted while properties of automobile meets related specifications, can greatly reduce oil consumption.Gear box casing occupies larger proportion in transmission assembly, and gear box casing light-weight design has become the important topic of gear box casing design studies.
At present, the design of gear box casing mainly depends on engineer's self experience, the problems such as the cracking that housing exists insufficient strength and cause if find in the stand in later stage and complete vehicle test, distortion, change housing again need repair a die, development cost have not only been increased, and can cause the construction cycle to extend, delay project process.In addition, the existing gear box casing according to Experience Design, exists certain blindness, and determining of the position of the stiffening rib of surface of shell, quantity and width is comparatively random, causes case weight to strengthen, and still, strength and stiffness but can not be guaranteed.
As shown in Figure 1, in the differential case bearing bracket region of existing gearbox front case, be provided with seven boss stiffening ribs 2 that are positioned at fore shell chamber boss 1, and the outer ring annular muscle 3 that is arranged at outside, fore shell chamber, the height of described outer ring annular muscle 3 is 14mm-83mm.As shown in Figure 3, jack shaft two bearing bracket 4 in the clutch region of gearbox front case is provided with two jack shaft two bearing bracket stiffening ribs 5, sloping platform 6 is provided with two oblique stiffening ribs 7, groove 8 is provided with five groove stiffening ribs 9, jack shaft one bearing support 10 is provided with three jack shaft two bearing bracket stiffening ribs 5, multiaspect projection 11 is provided with two multiaspect piece stiffening ribs 12, and bottom surface, fore shell chamber is provided with four side direction assistant reinforcement muscle 13.As shown in Figure 5, in the embedded chamber in the output shaft bearing region of gearbox front case, be provided with two interior stiffening ribs 14 that are connected to form " ten " character form structure.As shown in Figure 7, in the differential mechanism output shaft region of gearbox rear case, be provided with 13 inwall stiffening ribs 15 that are distributed in output shaft cavity inner wall, and the series connection stiffening rib 16 of eight inwall stiffening ribs 15 that are connected in series successively.As shown in Figure 9, the region that suspends of gearbox rear case comprises 12 tilting stiffening ribs 17.
In recent years, CAE(Computer Aided Engineering, computer-aided engineering (CAE)) extensive use in Automobile Design makes the light-weight design of automobile more efficient.How, by Finite Element Method, gear box casing is carried out to topology optimization design, obtaining light-weighted transmission housing body structure is the problem that those skilled in the art need to solve.
Model utility content
The purpose of this utility model is to provide a kind of Finite Element Method based on topological optimization to carry out light-weight design to gear box casing.Gearbox is gained in strength and rigidity in weight reduction.
For solving the problems of the technologies described above, transmission housing body structure based on topological optimization of the present utility model, comprise the differential case bearing bracket region that is arranged at respectively gearbox front case, bearing support stiffener assembly in clutch region and output shaft bearing region, clutch plummer block seat stiffener assembly and output shaft bearing stiffener assembly, bearing support stiffener assembly, clutch plummer block seat stiffener assembly and output shaft bearing stiffener assembly are all arranged on bottom surface, fore shell chamber, and be arranged at respectively the differential mechanism output shaft region of gearbox rear case and suspend the output shaft stiffener assembly in region and the stiffener assembly that suspends, described output shaft stiffener assembly and the stiffener assembly that suspends are all arranged on bottom surface, back cover chamber.
Preferably, described bearing support stiffener assembly comprises four uniform boss stiffening ribs, and be positioned at Shang Yige bottom surface, bottom surface, described fore shell chamber connection strengthening rib, a underside side assistant reinforcement Jin Heliangge bottom surface supplements stiffening rib, described the first boss stiffening rib is all connected with bottom surface, fore shell chamber with fore shell chamber boss with described the second boss stiffening rib, described the 3rd boss stiffening rib and fore shell chamber boss and the centre boss that suspends is connected, the Liang Ge opposite flank of described bottom surface connection strengthening rib is connected with centre boss and the first periphery boss that suspends that suspends respectively, described underside side assistant reinforcement Jin Liangge opposite flank is connected with centre boss and the transition boss that suspends that suspends respectively, the side connection that described the 4th boss stiffening rib is arranged on the boss of described fore shell chamber and the Yu Liangge bottom surface, bottom surface of the 4th boss stiffening rib supplements stiffening rib, the another side that described Liang Ge bottom surface supplements stiffening rib is connected with transition boss and the second periphery boss that suspends that suspends respectively.
What preferably, described the 4th boss stiffening rib He Liangge bottom surface supplemented stiffening rib connects and composes " people " character form structure.
Preferably, described bearing support stiffener assembly also comprises the outer ring annular muscle that is arranged at outside, fore shell chamber and is connected with bottom surface, fore shell chamber, and the height of described outer ring annular muscle is 14mm-55mm.
In bearing support stiffener assembly of the present utility model, existing seven boss stiffening ribs are reduced to four boss stiffening ribs, the transition stiffening rib that boss and the second periphery suspend between boss that suspends is " people " character form structure, and the more existing outer ring of the height annular muscle of outer ring annular muscle has reduced.In bearing support stiffener assembly of the present utility model, the trend of stiffening rib is that power is delivered to the transmission way enclosure body from bearing support.
Preferably, described clutch plummer block seat stiffener assembly comprises four plummer block seat stiffening ribs, two oblique stiffening ribs, two multiaspect piece stiffening ribs, four side direction assistant reinforcement muscle and two groove stiffening ribs, described the first plummer block seat stiffening rib is arranged between the gap of jack shaft two bearing bracket and fore shell chamber sidewall and is connected with jack shaft two bearing bracket, remaining three plummer block seat stiffening ribs are distributed between the gap of jack shaft one bearing support and fore shell chamber sidewall and are all connected with jack shaft one bearing support, described two oblique stiffening ribs are arranged on sloping platform and all and are connected with bottom surface, fore shell chamber, described two multiaspect piece stiffening ribs are arranged at respectively between two adjacent surfaces of multiaspect projection and the gap of fore shell chamber sidewall and are all connected with two multiaspect piece stiffening ribs, described four side direction assistant reinforcement muscle are arranged on on the fore shell chamber sidewall relative with jack shaft one bearing support with jack shaft two bearing bracket and be all connected with bottom surface, fore shell chamber, described two groove stiffening ribs are arranged on the groove in described fore shell chamber.
In clutch plummer block seat stiffener assembly of the present utility model, the stiffening rib of more existing not transmitted load is removed, and the quantity of the stiffening rib of annular spread is optimized.
Preferably, described output shaft bearing stiffener assembly also comprises the interior stiffening rib of " people " font of two formation in the embedded chamber that is arranged at bearing support, described two interior stiffening ribs connect and tie point is positioned in the circular arc wall in described embedded chamber, and the other end of described the first interior stiffening rib and the second interior stiffening rib is connected with two adjacent walls in described embedded chamber respectively.
" ten " font stiffening rib in the embedded chamber of output shaft bearing stiffener assembly of the present utility model is designed to " people " font according to optimum results.
Preferably, described output shaft stiffener assembly comprises 11 inwall stiffening ribs that are distributed in output shaft cavity inner wall, the San Ge side of described each inwall stiffening rib all with output shaft cavity bottom surface, output shaft cavity inner wall is connected with axis hole outer wall, three inwall stiffening ribs in described 11 inwall stiffening ribs are arranged at the inner side of output shaft cavity inner wall, remaining eight inwall stiffening rib connects successively by a series connection stiffening rib, the two ends of described series connection stiffening rib are all connected with output shaft cavity inner wall, the Yi Ge side of a middle reinforced rib is connected with the 4th inwall stiffening rib, another opposite flank of described middle reinforced rib is connected with output shaft cavity inner wall through the 5th inwall stiffening rib.
Output shaft stiffener assembly of the present utility model has been removed in existing structure some to not contribution of casing rigidity, i.e. the stiffening rib of transmitted load not substantially.
Preferably, the described stiffener assembly that suspends comprises five tilting stiffening ribs, minute stiffening rib and three reinforcing stiffening ribs in one, the Jun Yu center, one end of described five the tilting stiffening ribs boss that suspends connects, the other end of described five tilting stiffening ribs connects with corresponding four outer rims boss He Yige center projection that suspends respectively, described first reinforces stiffening rib and second reinforces stiffening rib outer rim boss and the side boss that suspends that suspends is connected in series, the described second end of reinforcing stiffening rib is connected to corresponding texture edge, the described the 3rd two ends that reinforce stiffening rib are connected with corresponding texture edge with described center projection respectively.
The stiffener assembly that suspends of the present utility model has been removed the tilting and vertical stiffening rib that does not play load conduction in some existing structures, and increases the tilting stiffening rib boss that will suspend and string, to increase this region rigidity.
Transmission housing body structure based on topological optimization of the present utility model, stiffening rib on whole gear box casing is adopted to topology optimization design, this transmission housing body structure can meet the requirement of light-weight design, there is lower stress level and guaranteed the rigidity property of housing, and can greatly reduce and produce the required cost of material of housing.
Transmission housing body structure based on topological optimization of the present utility model, can make front case weight saving 5.6%, strength increase 21.9%, and rigidity increases by 9.5%; Can make rear case weight saving 4.0%, strength increase 23.9%, rigidity is substantially constant.Therefore, this gear box casing not only has lightweight advantage, and the strength and stiffness performance of housing all increases or or suitable with procapsid structure.
Accompanying drawing explanation
Fig. 1 is the structural representation in the differential case bearing bracket region of existing gearbox front case;
Fig. 2 is the structural representation of the bearing support stiffener assembly of the present embodiment;
Fig. 3 is the structural representation in the clutch region of existing gearbox front case;
Fig. 4 is the structural representation of the clutch plummer block seat stiffener assembly of the present embodiment;
Fig. 5 is the structural representation in the output shaft bearing region of existing gearbox front case;
Fig. 6 is the structural representation of the output shaft bearing stiffener assembly of the present embodiment;
Fig. 7 is the structural representation in the clutch region of existing gearbox front case;
Fig. 8 is the structural representation of the output shaft stiffener assembly of the present embodiment;
Fig. 9 is the structural representation in existing differential mechanism output shaft region;
Figure 10 is the structural representation of the stiffener assembly that suspends of the present embodiment;
Figure 11 is the design cycle block diagram of the present embodiment;
Description of reference numerals in the transmission housing body structure accompanying drawing of the utility model based on topological optimization:
Boss 2-boss stiffening rib 3-outer ring, 1-fore shell chamber annular muscle
4-jack shaft two bearing bracket 5-jack shaft two bearing bracket stiffening rib 6-sloping platform
The oblique stiffening rib 8-of 7-groove 9-groove stiffening rib
10-jack shaft one bearing support 11-multiaspect projection 12-multiaspect piece stiffening rib
Stiffening rib 15-inwall stiffening rib in 13-side direction assistant reinforcement muscle 14-
The 16-bottom surface, the tilting stiffening rib 18-fore shell chamber of stiffening rib 17-of connecting
20-first boss stiffening rib 21-the second boss stiffening rib 22-the 3rd boss stiffening rib
25-underside side assistant reinforcement
23-the 4th boss stiffening rib 24-bottom surface connection strengthening rib
Muscle
26-the first bottom surface supplements stiffening rib 27-the second bottom surface and supplements stiffening rib 28-fore shell chamber boss
Boss 30-the first periphery boss 31-transition boss that suspends that suspends suspends in the middle of 29-
32-the second periphery boss 33-outer ring annular muscle that suspends
40-the first plummer block seat adds 41-the second plummer block seat and adds 42-the 3rd midship shaft bearing
Strong rigidity of soft tissues muscle seat stiffening rib
43-the 4th plummer block seat adds
Two oblique stiffening rib 45-multiaspect piece stiffening ribs of 44-
Strong muscle
46-side direction assistant reinforcement muscle 47-groove stiffening rib 48-jack shaft two bearing bracket
49-jack shaft one bearing support 50-sloping platform 51-multiaspect projection
52-groove
The interior stiffening rib of the interior stiffening rib 61-second of 60-first
The built-in stiffening rib 71-series connection of 70-stiffening rib 72-middle reinforced rib
In the tilting stiffening rib 81-of 80-, minute stiffening rib 82-first reinforces stiffening rib
83-second reinforces stiffening rib 84-the 3rd and reinforces the stiffening rib 85-outer rim boss that suspends
Projection 87-center, the 86-center boss 88-side boss that suspends that suspends
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, wherein in institute's drawings attached, identical label represents same or similar parts.In addition it should be noted that the pattern of these accompanying drawings for simplifying, only from understanding angle easily, concrete enforcement structure of the present utility model is shown.
As Fig. 2, Fig. 4, Fig. 6, shown in Fig. 8 and Figure 10, the transmission housing body structure of the utility model based on topological optimization, comprise the differential case bearing bracket region that is arranged at respectively gearbox front case, bearing support stiffener assembly in clutch region and output shaft bearing region, clutch plummer block seat stiffener assembly and output shaft bearing stiffener assembly, bearing support stiffener assembly, clutch plummer block seat stiffener assembly and output shaft bearing stiffener assembly are all arranged on bottom surface, described fore shell chamber 18, and be arranged at respectively the differential mechanism output shaft region of gearbox rear case and suspend the output shaft stiffener assembly in region and the stiffener assembly that suspends, described output shaft stiffener assembly and the stiffener assembly that suspends are all arranged on bottom surface, described back cover chamber.
As shown in Figure 2, described bearing support stiffener assembly comprises four uniform boss stiffening ribs 20, 21, 22, 23, and be positioned at bottom surface, described fore shell chamber 18 Shang Yige bottom surface connection strengthening ribs 24, a underside side assistant reinforcement muscle 25He Liangge bottom surface supplements stiffening rib 26, 27, described the first boss stiffening rib 20 is all connected with bottom surface, fore shell chamber 18 with fore shell chamber boss 28 with described the second boss stiffening rib 21, described the 3rd boss stiffening rib 22 and fore shell chamber boss 28 and the centre boss 29 that suspends is connected, connection strengthening rib 24Liang Ge opposite flank, described bottom surface is connected with centre boss 29 and the first periphery boss 30 that suspends that suspends respectively, described underside side assistant reinforcement muscle 25Liang Ge opposite flank is connected with centre boss 29 and the transition boss 31 that suspends that suspends respectively, described the 4th boss stiffening rib 23 is arranged on described fore shell chamber boss 28 and the 4th Yu Liangge bottom surface, boss stiffening rib 23 bottom surface supplements stiffening rib 26, 27 side connects, described the first bottom surface supplements stiffening rib 26 and the second bottom surface and supplements stiffening rib 27 another side and be connected with transition boss 31 and the second periphery boss 32 that suspends that suspends respectively.
What described the 4th boss stiffening rib 23He Liangge bottom surface supplemented stiffening rib 26,27 connects and composes " people " character form structure.
Described bearing support stiffener assembly also comprises the outer ring annular muscle 33 that is arranged at outside, fore shell chamber and is connected with bottom surface, fore shell chamber 18, and the height of described outer ring annular muscle 33 is 14mm-55mm.
As shown in Figure 4, described clutch plummer block seat stiffener assembly comprises four plummer block seat stiffening ribs 40, 41, 42, 43, two oblique stiffening ribs 44, two multiaspect piece stiffening ribs 45, four side direction assistant reinforcement muscle 46 and two groove stiffening ribs 47, described the first plummer block seat stiffening rib 40 is arranged between the gap of jack shaft two bearing bracket 48 and fore shell chamber sidewall and is connected with jack shaft two bearing bracket 48, remaining three plummer block seat stiffening ribs 41, 42, 43 are distributed between the gap of jack shaft one bearing support 49 and fore shell chamber sidewall and are all connected with jack shaft one bearing support 49, described two oblique stiffening ribs 44 are arranged on sloping platform 50 and all and are connected with bottom surface, fore shell chamber 18, described two multiaspect piece stiffening ribs 45 are arranged at respectively between two adjacent surfaces of multiaspect projection 51 and the gap of fore shell chamber sidewall and are all connected with two multiaspect piece stiffening ribs 45, described four side direction assistant reinforcement muscle 46 are arranged on the fore shell chamber sidewall relative with jack shaft one bearing support 49 with jack shaft two bearing bracket 48 and are all connected with bottom surface, fore shell chamber 18, described two groove stiffening ribs 47 are arranged on the groove 52 in described fore shell chamber.
As shown in Figure 6, described output shaft bearing stiffener assembly also comprises the interior stiffening rib 60,61 of " people " font of two formation in the embedded chamber that is arranged at bearing support, described two interior stiffening ribs 60,61 connect and tie point is positioned in the circular arc wall in described embedded chamber, and described the first interior stiffening rib 60 is connected with two adjacent walls in described embedded chamber respectively with the second interior stiffening rib 61 other end.
As shown in Figure 8, described output shaft stiffener assembly comprises 11 inwall stiffening ribs 70 that are distributed in output shaft cavity inner wall, described each inwall stiffening rib 70San Ge side all with output shaft cavity bottom surface, output shaft cavity inner wall is connected with axis hole outer wall, three inwall stiffening ribs 70 in described 11 inwall stiffening ribs 70 are arranged at the inner side of output shaft cavity inner wall, remaining eight inwall stiffening rib 70 connects successively by a series connection stiffening rib 71, described series connection stiffening rib 71 two ends are all connected with output shaft cavity inner wall, a middle reinforced rib 72Yi Ge side is connected with the 4th inwall stiffening rib 70, another opposite flank of described middle reinforced rib 72 is connected with output shaft cavity inner wall through the 5th inwall stiffening rib 70.
As shown in figure 10, the described stiffener assembly that suspends comprises five tilting stiffening ribs 80, minute stiffening rib 81 and three reinforcing stiffening ribs 82 in one, 83, 84, Jun Yu center, described five the tilting stiffening rib 80 one end boss that suspends connects, the other end of described five tilting stiffening ribs 80 connects with corresponding four outer rims boss 85He Yige center projection 86 that suspends respectively, described first reinforces stiffening rib 82 and second reinforces stiffening rib 83 the outer rim boss 85He side boss 88 that suspends that suspends is connected in series, the described second end of reinforcing stiffening rib 83 is connected to corresponding texture edge, the described the 3rd reinforces stiffening rib 84 two ends is connected with corresponding texture edge with described center projection 86 respectively.
The transmission housing body structure based on topological optimization of the present embodiment, stiffening rib on whole gear box casing is adopted to topology optimization design, this transmission housing body structure can meet the requirement of light-weight design, there is lower stress level and guaranteed the rigidity property of housing, and can greatly reduce and produce the required cost of material of housing.
As shown in figure 11, the design cycle stream of the present embodiment is: intrinsic bearing load and suspension load are set to FEM (finite element) model, original structure intensity is analyzed, design space definition and topological optimization object definition are set, optimum results is understood, structural design is changed, carry out subsequently structural strength and rigidity property analysis verification, when verifying that structure is no, continue structural design to change, when the strength character of new model reaches the design level of gear box casing of the same type, verify that structure is when being, optimal design structure completes.
Transmission housing body structure after this optimization is carried out to finite element check, and the analysis contrast that can access light-weighted shell construction and original structure is as follows:
The original structure of table 1 front case and the comparison of lightweight structure
| ? | Weight (kg) | Maximum stress (MPa) | Maximum distortion (mm) |
| Original structure | 6.59 | 178 | 0.21 |
| Lightweight structure | 6.22 | 139 | 0.19 |
| Change amplitude | 5.6% | 21.9% | 9.5% |
The original structure of table 2 rear case and the comparison of lightweight structure
| ? | Weight (kg) | Maximum stress (MPa) | Maximum distortion (mm) |
| Original structure | 6.57 | 163 | 0.31 |
| Lightweight structure | 6.31 | 124 | 0.32 |
| Change amplitude | 4.0% | 23.9% | 3.2% |
The transmission housing body structure based on topological optimization of the present embodiment, can make front case weight saving 5.6%, strength increase 21.9%, and rigidity increases by 9.5%; Can make rear case weight saving 4.0%, strength increase 23.9%, rigidity is substantially constant.Therefore, this gear box casing not only has lightweight advantage, and the strength and stiffness performance of housing all increases or suitable with procapsid structure.
Claims (8)
1. the transmission housing body structure based on topological optimization, it is characterized in that, comprise the differential case bearing bracket region that is arranged at respectively gearbox front case, bearing support stiffener assembly in clutch region and output shaft bearing region, clutch plummer block seat stiffener assembly and output shaft bearing stiffener assembly, bearing support stiffener assembly, clutch plummer block seat stiffener assembly and output shaft bearing stiffener assembly are all arranged on bottom surface, fore shell chamber, and be arranged at respectively the differential mechanism output shaft region of gearbox rear case and suspend the output shaft stiffener assembly in region and the stiffener assembly that suspends, described output shaft stiffener assembly and the stiffener assembly that suspends are all arranged on bottom surface, back cover chamber.
2. the transmission housing body structure based on topological optimization according to claim 1, it is characterized in that, described bearing support stiffener assembly comprises four uniform boss stiffening ribs, and be positioned at Shang Yige bottom surface, bottom surface, described fore shell chamber connection strengthening rib, a underside side assistant reinforcement Jin Heliangge bottom surface supplements stiffening rib, described the first boss stiffening rib is all connected with bottom surface, fore shell chamber with fore shell chamber boss with described the second boss stiffening rib, described the 3rd boss stiffening rib and fore shell chamber boss and the centre boss that suspends is connected, the Liang Ge opposite flank of described bottom surface connection strengthening rib is connected with centre boss and the first periphery boss that suspends that suspends respectively, described underside side assistant reinforcement Jin Liangge opposite flank is connected with centre boss and the transition boss that suspends that suspends respectively, the side connection that described the 4th boss stiffening rib is arranged on the boss of described fore shell chamber and the Yu Liangge bottom surface, bottom surface of the 4th boss stiffening rib supplements stiffening rib, the another side that described Liang Ge bottom surface supplements stiffening rib is connected with transition boss and the second periphery boss that suspends that suspends respectively.
3. the transmission housing body structure based on topological optimization according to claim 2, is characterized in that, what described the 4th boss stiffening rib He Liangge bottom surface supplemented stiffening rib connects and composes " people " character form structure.
4. the transmission housing body structure based on topological optimization according to claim 2, it is characterized in that, described bearing support stiffener assembly also comprises the outer ring annular muscle that is arranged at outside, fore shell chamber and is connected with bottom surface, fore shell chamber, and the height of described outer ring annular muscle is 14mm-55mm.
5. the transmission housing body structure based on topological optimization according to claim 1, it is characterized in that, described clutch plummer block seat stiffener assembly comprises four plummer block seat stiffening ribs, two oblique stiffening ribs, two multiaspect piece stiffening ribs, four side direction assistant reinforcement muscle and two groove stiffening ribs, described the first plummer block seat stiffening rib is arranged between the gap of jack shaft two bearing bracket and fore shell chamber sidewall and is connected with jack shaft two bearing bracket, remaining three plummer block seat stiffening ribs are distributed between the gap of jack shaft one bearing support and fore shell chamber sidewall and are all connected with jack shaft one bearing support, described two oblique stiffening ribs are arranged on sloping platform and all and are connected with bottom surface, fore shell chamber, described two multiaspect piece stiffening ribs are arranged at respectively between two adjacent surfaces of multiaspect projection and the gap of fore shell chamber sidewall and are all connected with two multiaspect piece stiffening ribs, described four side direction assistant reinforcement muscle are arranged on the fore shell chamber sidewall relative with jack shaft one bearing support with jack shaft two bearing bracket and are all connected with bottom surface, fore shell chamber, described two groove stiffening ribs are arranged on the groove in described fore shell chamber.
6. the transmission housing body structure based on topological optimization according to claim 1, it is characterized in that, described output shaft bearing stiffener assembly also comprises the interior stiffening rib of " people " font of two formation in the embedded chamber that is arranged at bearing support, described two interior stiffening ribs connect and tie point is positioned in the circular arc wall in described embedded chamber, and the other end of described the first interior stiffening rib and the second interior stiffening rib is connected with two adjacent walls in described embedded chamber respectively.
7. the transmission housing body structure based on topological optimization according to claim 1, it is characterized in that, described output shaft stiffener assembly comprises 11 inwall stiffening ribs that are distributed in output shaft cavity inner wall, the San Ge side of described each inwall stiffening rib all with output shaft cavity bottom surface, output shaft cavity inner wall is connected with axis hole outer wall, three inwall stiffening ribs in described 11 inwall stiffening ribs are arranged at the inner side of output shaft cavity inner wall, remaining eight inwall stiffening rib connects successively by a series connection stiffening rib, the two ends of described series connection stiffening rib are all connected with output shaft cavity inner wall, the Yi Ge side of a middle reinforced rib is connected with the 4th inwall stiffening rib, another opposite flank of described middle reinforced rib is connected with output shaft cavity inner wall through the 5th inwall stiffening rib.
8. the transmission housing body structure based on topological optimization according to claim 1, it is characterized in that, the described stiffener assembly that suspends comprises five tilting stiffening ribs, minute stiffening rib and three reinforcing stiffening ribs in one, the Jun Yu center, one end of described five the tilting stiffening ribs boss that suspends connects, the other end of described five tilting stiffening ribs connects with corresponding four outer rims boss He Yige center projection that suspends respectively, described first reinforces stiffening rib and second reinforces stiffening rib outer rim boss and the side boss that suspends that suspends is connected in series, the described second end of reinforcing stiffening rib is connected to corresponding texture edge, the described the 3rd two ends that reinforce stiffening rib are connected with corresponding texture edge with described center projection respectively.
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| CN105927712A (en) * | 2016-06-30 | 2016-09-07 | 江苏汤臣汽车零部件有限公司 | Novel light-weight electric car speed reducer |
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