CN114104120B - Integrated bus driving shaft framework and manufacturing method thereof - Google Patents
Integrated bus driving shaft framework and manufacturing method thereof Download PDFInfo
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- CN114104120B CN114104120B CN202111641710.9A CN202111641710A CN114104120B CN 114104120 B CN114104120 B CN 114104120B CN 202111641710 A CN202111641710 A CN 202111641710A CN 114104120 B CN114104120 B CN 114104120B
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- framework
- integrally cast
- skeleton
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- wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D31/00—Superstructures for passenger vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses an integrated bus driving shaft framework and a manufacturing method thereof, and relates to the technical field of vehicles, wherein the integrated bus driving shaft framework comprises a framework body which is integrally cast and formed, and the framework body is provided with a middle framework and a wheel cover framework; the two wheel cover frameworks are symmetrically arranged on two sides of the middle framework, so that an in-vehicle aisle is formed above the middle framework; the skeleton body is integrally cast with a wheel driving system installation position and a suspension system installation position, and is machined with a wheel driving system installation hole and a suspension system installation hole. The bus driving shaft framework adopts an integrated framework structure, realizes a modularized framework assembly of an integrated wheel driving system, has high positioning precision, can solve the problem of four-wheel positioning deviation caused by manual welding, is beneficial to improving the operation stability of a vehicle, and has the advantages of high assembly efficiency, good universality, low failure rate, high structural strength and the like.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an integrated bus driving shaft framework and a manufacturing method thereof.
Background
In the current industry, the passenger car skeleton based on the independent suspension wheel side driving system is of a steel pipe welding structure, the structure extremely depends on the skill of a welder and the accuracy of a welding fixture, the welding process is difficult to control, if the welding process is slightly deviated, four-wheel positioning deviation can be caused, and the problems of insufficient welding strength and the like occur. In addition, the steel pipe welding structure has the defects of low manufacturing efficiency, high labor cost, low light weight level and the like.
Disclosure of Invention
The invention provides an integrated bus driving shaft framework and a manufacturing method thereof, and mainly aims to solve the problems in the prior art.
The invention adopts the following technical scheme:
an integrated bus driving shaft framework comprises a framework body which is integrally cast and formed, wherein the framework body is provided with a middle framework and a wheel cover framework; the two wheel cover frameworks are symmetrically arranged on two sides of the middle framework, so that an in-vehicle aisle is formed above the middle framework; the framework body is integrally cast with a wheel driving system installation position and a suspension system installation position, and is machined with a wheel driving system installation hole and a suspension system installation hole.
Further, the suspension system mounting locations include an upper fork wall mounting location and a lower fork arm mounting location, and the suspension system mounting holes include an upper fork wall mounting hole and a lower fork arm mounting hole; the upper fork wall mounting positions are uniformly cast in the two wheel cover frameworks, and the upper fork wall mounting holes are machined; and the lower fork arm mounting positions are uniformly cast on the two sides of the bottom of the middle framework, and the lower fork arm mounting holes are machined.
Further, the wheel side driving system mounting location comprises an air bag mounting location, and the wheel side driving system mounting hole comprises an air bag mounting hole; the air bag installation position is integrally cast in the wheel cover framework, and the air bag installation hole is machined.
Further, the wheel drive system mounting locations include damper mounting locations, and the wheel drive system mounting holes include damper mounting holes; the shock absorber installation position is integrally cast in the wheel cover framework, and the shock absorber installation hole is machined.
Further, at least one wiring groove for the pipeline to pass through is integrally cast at the bottom of the middle framework.
Further, the skeleton body is integrally cast with a plurality of lightening holes
Further, the skeleton body is an integrally cast aluminum skeleton.
A manufacturing method of an integrated bus driving shaft framework is characterized by comprising the following steps of: the method comprises the following steps:
(1) Carrying out simulation optimization design on the structure of the driving shaft framework;
(2) According to the result of the simulation optimization design, the to-be-cast piece is die-cast and molded to obtain a skeleton blank;
(3) And (5) machining the skeleton blank to obtain the skeleton body.
Further, in the step (2), a coordinate boring machine is adopted to carry out hole site processing treatment on the skeleton blank, so that a wheel side driving system mounting hole and a suspension system mounting hole are obtained.
Further, the wheel side driving system mounting holes comprise an air bag mounting hole and a shock absorber mounting hole; the suspension system mounting holes include an upper yoke mounting hole and a lower yoke mounting hole.
Compared with the prior art, the invention has the beneficial effects that:
the bus driving shaft framework adopts an integrated framework structure, realizes a modularized framework assembly of an integrated wheel driving system, has high positioning precision, can solve the problem of four-wheel positioning deviation caused by manual welding, is beneficial to improving the operation stability of a vehicle, and has the advantages of high assembly efficiency, good universality, low failure rate, high structural strength and the like.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a second perspective view of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a side view of the present invention.
Detailed Description
Specific embodiments of the present invention will be described below with reference to the accompanying drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent to one skilled in the art that the present invention may be practiced without these details.
Referring to fig. 1 to 4, an integrated bus driving shaft skeleton includes a skeleton body 1 integrally cast, the skeleton body 1 having a middle skeleton 11 and a wheel cover skeleton 12; the two wheel cover frames 12 are symmetrically disposed on both sides of the middle frame 11 so that the middle frame 11 forms the in-vehicle aisle 10 above. The skeleton body 1 is integrally cast with a wheel drive system mounting position and a suspension system mounting position, and is machined with a wheel drive system mounting hole and a suspension system mounting hole. The bus driving shaft framework adopts an integrated framework structure, realizes a modularized framework assembly of an integrated wheel driving system, has high positioning precision, can solve the problem of four-wheel positioning deviation caused by manual welding, is beneficial to improving the operation stability of a vehicle, and has the advantages of high assembly efficiency, good universality, low failure rate, high structural strength and the like.
Referring to fig. 2 and 4, the suspension system mounting locations include an upper fork wall mounting location 131 and a lower fork arm mounting location 141, and the suspension system mounting holes include an upper fork wall mounting hole 132 and a lower fork arm mounting hole 142; the two-wheel cover skeleton 12 is internally and uniformly cast with an upper fork wall mounting position 131 and is machined with an upper fork wall mounting hole 132; lower yoke mounting locations 141 are uniformly cast on both sides of the bottom of the middle frame 11, and lower yoke mounting holes 142 are machined. The upper fork wall mounting portion 13 is constituted by the upper fork wall mounting portion 131 and the upper fork wall mounting hole 132; the lower fork wall mounting position 141 and the lower fork wall mounting hole 142 constitute the lower fork wall mounting portion 14. Specifically, two upper ribs 133 are integrally cast on the side wall of the wheel casing skeleton 12 at the corresponding positions of the upper fork wall mounting positions 131, and an upper fork wall mounting hole 132 is machined in the middle of the upper ribs 133; the middle framework 11 is integrally cast with two lower ribs 143 at corresponding positions of the lower fork wall mounting positions 141, and lower fork wall mounting holes 142 are machined in the middle of the lower ribs 143, so that the structural strength of the framework body 1 can be fully ensured, and the stable connection between the upper fork arms and the lower fork arms is ensured. In practical application, the suspension structure may be a non-double-fork arm structure, a multi-link structure or a rigid bridge structure.
Referring to fig. 2 and 4, the wheel drive system mounting locations include an airbag mounting location 151 and the wheel drive system mounting holes include an airbag mounting hole 152; an air bag mounting position 151 is integrally cast in the wheel housing skeleton 12, and an air bag mounting hole 152 is machined. The airbag mounting portion 15 is constituted by the airbag mounting portion 151 and the airbag mounting hole 152. Specifically, the wheel housing skeleton 12 is integrally cast with a sinking table 153 at a position corresponding to the air bag mounting position 151, and an air bag mounting hole 152 is machined at the bottom of the sinking table 153. Thus, the structural strength of the wheel cover frame 12 can be sufficiently ensured, and the stable connection of the air bags can be ensured. In practical applications, a single-airbag structure or a double-airbag structure may be adopted according to requirements, and the embodiment is preferably a double-airbag structure.
Referring to fig. 2 and 4, the wheel drive system mounting locations include damper mounting locations 161 and the wheel drive system mounting holes include damper mounting holes 162; damper mounting locations 161 are integrally cast into the wheel housing frame 12 and damper mounting holes 162 are machined. The damper mounting position 161 and the damper mounting hole 162 constitute the damper mounting portion 16. Specifically, the wheel housing frame 12 is integrally cast with a support plate 163 at a position corresponding to the damper mounting position 161, and a damper mounting hole 162 is machined in the support plate 163. Thus, the structural strength of the wheel cover frame 11 can be sufficiently ensured, and the firm connection of the damper can be ensured. In practical applications, a single damper structure or a dual damper structure may be adopted according to requirements, and the dual damper structure is preferred in this embodiment.
Referring to fig. 1 to 3, at least one wiring groove 17 through which a pipeline passes is integrally cast at the bottom of the middle frame 11. Specifically, 3 wiring grooves 17 are arranged at the front end and the rear end of the bottom of the middle framework 11 side by side, so that the pipelines such as high-low voltage wire harnesses, air pipes, oil pipes and water pipes can be arranged in the wiring grooves 17 in a concentrated mode.
Referring to fig. 1 to 4, in order to achieve a lightweight design, the skeleton body 1 is integrally cast with a plurality of lightening holes 18, and the lightening holes 18 may be designed as square holes, circular holes, triangular holes, or the like, and specifically, an optimization analysis is performed based on the overall structural strength, and a hole design is performed pertinently. In addition, the middle of the bottom of the middle skeleton 11 is provided with a recess which is approximately isosceles trapezoid, and the middle of the two adjacent upper ribs 133 and lower ribs 143 is also provided with a recess, so that the skeleton body 1 can be further reduced in weight.
Referring to fig. 1 to 4, as a preferable scheme: the framework body 1 is an integrally cast aluminum framework, and the invention fully utilizes the low density characteristic of aluminum alloy, thereby being beneficial to further improving the light weight level.
Referring to fig. 1 to 4, the following describes a manufacturing method based on the specific structure of the above-mentioned integrated bus driving shaft skeleton, including the following steps:
(1) Carrying out simulation optimization design on the structure of the driving shaft framework;
(2) According to the result of the simulation optimization design, the to-be-cast piece is die-cast and molded to obtain a skeleton blank;
(3) And (5) machining the skeleton blank to obtain the skeleton body 1. Specifically, in the step, a coordinate boring machine is adopted to carry out hole site processing treatment on the skeleton blank, so that a wheel side driving system mounting hole and a suspension system mounting hole are obtained. Because the installation accuracy requirements of the wheel side driving system and the suspension system are high, and the accuracy requirements of the hole site are also high, the invention can fully ensure the installation positioning accuracy by adopting machining treatment. Preferably, the wheel drive system mounting holes include an airbag mounting hole 152 and a shock absorber mounting hole 162, and the suspension system mounting holes include an upper fork mounting hole 132 and a lower fork mounting hole 142.
In summary, the traditional welded skeleton is formed by welding a plurality of parts (square steel and steel plates made of iron), a great deal of welding work is needed, the working efficiency is low, and the manufacturing precision is difficult to control. The integral bus driving shaft skeleton provided by the invention integrates, designs and manufactures all parts, greatly simplifies the matching of a supply chain, reduces the number of parts and working procedure steps, shortens the production period, is beneficial to improving efficiency and reducing cost, adopts a more optimized engineering structure, avoids the problems of structural strength and positioning precision caused by welding, has high integral manufacturing precision, and can ensure the mounting and positioning precision of a wheel driving system and a suspension system.
The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.
Claims (6)
1. An integral type passenger train drive shaft skeleton, its characterized in that: the wheel cover comprises a framework body which is integrally cast and formed, wherein the framework body is provided with a middle framework and a wheel cover framework; the two wheel cover frameworks are symmetrically arranged on two sides of the middle framework, so that an in-vehicle aisle is formed above the middle framework; the framework body is integrally cast with a wheel driving system installation position and a suspension system installation position, and is machined with a wheel driving system installation hole and a suspension system installation hole;
the wheel driving system installation position comprises an air bag installation position and a shock absorber installation position; the wheel driving system mounting holes comprise air bag mounting holes and shock absorber mounting holes; the air bag installation position is integrally cast in the wheel cover framework, a sinking table is integrally cast at the corresponding position of the air bag installation position, and the air bag installation hole is machined at the bottom of the sinking table; the shock absorber installation position is integrally cast in the wheel cover framework, a supporting plate is integrally cast at the corresponding position of the shock absorber installation position, and the shock absorber installation hole is machined in the supporting plate;
the suspension system mounting positions comprise an upper fork wall mounting position and a lower fork arm mounting position, and the suspension system mounting holes comprise an upper fork wall mounting hole and a lower fork arm mounting hole; the upper fork wall mounting positions are uniformly cast in the two wheel cover frameworks, two upper convex ribs are integrally cast at the corresponding positions of the upper fork wall mounting positions, and the middle parts of the upper convex ribs are machined with the upper fork wall mounting holes; the lower fork arm installation positions are uniformly cast on two sides of the bottom of the middle framework, two lower protruding edges are integrally cast at corresponding positions of the lower fork arm installation positions, and lower fork wall installation holes are machined in the middle of each lower protruding edge.
2. An integral passenger vehicle drive shaft skeleton as defined in claim 1, wherein: at least one wiring groove for the pipeline to pass through is integrally cast at the bottom of the middle framework.
3. An integral passenger vehicle drive shaft skeleton as defined in claim 1, wherein: the skeleton body is integrally cast with a plurality of lightening holes.
4. An integral passenger vehicle drive shaft skeleton as defined in claim 1, wherein: the framework body is an integrally cast aluminum framework.
5. A manufacturing method of an integrated bus driving shaft framework is characterized by comprising the following steps of: the method comprises the following steps:
(1) Carrying out simulation optimization design on the structure of the driving shaft framework;
(2) According to the result of the simulation optimization design, the to-be-cast piece is die-cast and molded to obtain a skeleton blank;
(3) Machining the skeleton blank to obtain a skeleton body;
in the step (3), the skeleton body has a middle skeleton and a wheel cover skeleton; the two wheel cover frameworks are symmetrically arranged on two sides of the middle framework, so that an in-vehicle aisle is formed above the middle framework; the framework body is integrally cast with a wheel driving system installation position and a suspension system installation position, and is machined with a wheel driving system installation hole and a suspension system installation hole;
the wheel driving system installation position comprises an air bag installation position and a shock absorber installation position; the wheel driving system mounting holes comprise air bag mounting holes and shock absorber mounting holes; the air bag installation position is integrally cast in the wheel cover framework, a sinking table is integrally cast at the corresponding position of the air bag installation position, and the air bag installation hole is machined at the bottom of the sinking table; the shock absorber installation position is integrally cast in the wheel cover framework, a supporting plate is integrally cast at the corresponding position of the shock absorber installation position, and the shock absorber installation hole is machined in the supporting plate;
the suspension system mounting positions comprise an upper fork wall mounting position and a lower fork arm mounting position, and the suspension system mounting holes comprise an upper fork wall mounting hole and a lower fork arm mounting hole; the upper fork wall mounting positions are uniformly cast in the two wheel cover frameworks, two upper convex ribs are integrally cast at the corresponding positions of the upper fork wall mounting positions, and the middle parts of the upper convex ribs are machined with the upper fork wall mounting holes; the lower fork arm installation positions are uniformly cast on two sides of the bottom of the middle framework, two lower protruding edges are integrally cast at corresponding positions of the lower fork arm installation positions, and lower fork wall installation holes are machined in the middle of each lower protruding edge.
6. The method for manufacturing the integral bus driving shaft skeleton according to claim 5, wherein: in the step (3), a coordinate boring machine is adopted to carry out hole site processing treatment on the skeleton blank, so that the wheel side driving system mounting hole and the suspension system mounting hole are obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641710.9A CN114104120B (en) | 2021-12-30 | 2021-12-30 | Integrated bus driving shaft framework and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641710.9A CN114104120B (en) | 2021-12-30 | 2021-12-30 | Integrated bus driving shaft framework and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN114104120A CN114104120A (en) | 2022-03-01 |
| CN114104120B true CN114104120B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111641710.9A Active CN114104120B (en) | 2021-12-30 | 2021-12-30 | Integrated bus driving shaft framework and manufacturing method thereof |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050167969A1 (en) * | 2004-01-29 | 2005-08-04 | Kazumasa Fukazawa | Structure of main frame for construction machines and method of manufacturing the same |
| JP5156294B2 (en) * | 2007-08-03 | 2013-03-06 | 株式会社小松製作所 | Construction machine mainframe and construction machine equipped with the same |
| CN206589968U (en) * | 2016-12-26 | 2017-10-27 | 大连比亚迪汽车有限公司 | A kind of low floor passenger car frame |
| CN206691201U (en) * | 2017-04-28 | 2017-12-01 | 中国重汽集团济南动力有限公司 | A kind of Novel frame front overhang assembly |
| CN207737365U (en) * | 2018-01-10 | 2018-08-17 | 金龙联合汽车工业（苏州）有限公司 | Modularization truss structure |
| DE102019129046A1 (en) * | 2019-10-28 | 2021-04-29 | Bayerische Motoren Werke Aktiengesellschaft | Floor assembly for a motor vehicle, motor vehicle and method for producing a floor assembly |
| CN213705561U (en) * | 2020-11-30 | 2021-07-16 | 南京恒天领锐汽车有限公司 | Rear axle section structure of passenger car framework |
| CN114179921A (en) * | 2021-12-30 | 2022-03-15 | 厦门金龙联合汽车工业有限公司 | Integrated form passenger train drive shaft skeleton with adjustable width |
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- 2021-12-30 CN CN202111641710.9A patent/CN114104120B/en active Active
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| CN114104120A (en) | 2022-03-01 |
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