CN220842683U - Integrated low-pressure casting auxiliary frame - Google Patents
Integrated low-pressure casting auxiliary frame Download PDFInfo
- Publication number
- CN220842683U CN220842683U CN202322826425.5U CN202322826425U CN220842683U CN 220842683 U CN220842683 U CN 220842683U CN 202322826425 U CN202322826425 U CN 202322826425U CN 220842683 U CN220842683 U CN 220842683U
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- longeron
- extension arm
- vehicle frame
- pressure casting
- frame body
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- 238000005266 casting Methods 0.000 title claims abstract description 21
- 239000003381 stabilizer Substances 0.000 claims abstract description 19
- 239000000725 suspension Substances 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 10
- 238000003466 welding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000003908 quality control method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The utility model provides an integral type low pressure casting sub vehicle frame, including integrative cast shaping's sub vehicle frame body, the sub vehicle frame body includes left longeron, right side longeron, the front beam, the middle crossbeam, the rear cross beam, the sub vehicle frame body is the entity structure in opening decurrent concave groove, the longeron left and right both ends outwards stretch out respectively longeron backward slant extension, form symmetrical first extension arm, first extension arm is equipped with preceding automobile body connecting hole, first extension arm links to each other department with the longeron is equipped with preceding erection support, preceding erection support sets up preceding control arm mounting hole, left side longeron, right side longeron symmetry is equipped with back erection support, back erection support sets up back control arm mounting hole, left side longeron, right side longeron sets up the steering gear mounting hole, the middle crossbeam is equipped with preceding suspension support, the longeron outwards stretches out respectively at the left and right both ends of rear cross beam, form symmetrical second extension arm, be equipped with back automobile body connecting hole on the second extension arm, left side longeron, right side longeron rear end symmetry is equipped with the stabilizer bar installation face, the rear end symmetry sets up back suspension support mounting hole on the rear beam left and right both ends symmetry.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to an integrated low-pressure casting auxiliary frame.
Background
The subframe is a supplementary part of the frame, which functions as a link suspension and the frame, and also can block vibrations transmitted from the wheel suspension to the frame, to reduce noise of the passenger compartment while improving riding comfort. Some vehicle models also mount the engine on the subframe, isolating the engine from vibrations, so as to provide a better ride experience.
At present, the auxiliary frame is mainly divided into three auxiliary frames, namely a steel frame type auxiliary frame, an aluminum alloy split type welding auxiliary frame and an air core aluminum alloy auxiliary frame:
① Steel frame type auxiliary frame: the weight of the finished product is high, the parts are more, the process is more complicated, and the corrosion resistance of the material is poor;
② Aluminum alloy split type welding auxiliary frame: the weight of the aluminum alloy auxiliary frame is reduced, but the aluminum alloy auxiliary frame is not obvious enough, and the welding process of the aluminum alloy auxiliary frame is complex;
③ Hollow aluminum alloy subframe: the sand core is needed to be additionally manufactured, the die opening quantity is increased, so that the cost is increased, the process is complex, and the quality control difficulty is high.
Disclosure of Invention
Aiming at the corresponding defects of the prior art, the utility model provides the integrated low-pressure casting auxiliary frame, which has the advantages of light weight, low oil consumption, corrosion resistance, no need of welding and heat treatment and the like compared with a steel frame type auxiliary frame; compared with a welded aluminum alloy auxiliary frame, the welding auxiliary frame has the advantages of better dimensional accuracy, better overall performance, lower cost and higher efficiency; compared with the hollow aluminum alloy auxiliary frame, the auxiliary frame has the advantages of good mechanical property and higher environmental protection benefit.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an integral type low pressure casting sub vehicle frame, includes integrated into one piece cast sub vehicle frame body, the sub vehicle frame body includes left longeron, right longeron, front beam, middle cross beam, rear cross beam, its characterized in that: the auxiliary frame comprises a left longitudinal beam, a right longitudinal beam, a front transverse beam, a middle transverse beam and a rear transverse beam of an auxiliary frame body, wherein the left longitudinal beam, the right longitudinal beam, the front transverse beam and the rear transverse beam are of solid structures with concave grooves with downward openings, the left end and the right end of the front transverse beam extend outwards respectively to form symmetrical first extension arms, front automobile body connecting holes which are used for being connected with an automobile body are formed in the first extension arms and vertically downwards, front mounting supports which extend outwards are arranged at the connecting positions of the first extension arms and the longitudinal beams, front control arm mounting holes are formed in the front mounting supports, rear mounting supports which extend outwards are symmetrically arranged at the outer sides of the rear sections of the left longitudinal beam and the right longitudinal beam, rear control arm mounting holes are formed in the rear mounting supports, vertical downward diverter mounting holes are formed in the middle section of the middle transverse beam, front suspension brackets are arranged in the middle section of the rear transverse beam, longitudinal beams extend outwards to form symmetrical second extension arms, vertical downward rear automobile body connecting holes which are used for being connected with the automobile body are formed in the second extension arms, transverse stabilizer bars are symmetrically arranged at the rear ends of the left longitudinal beam and the right longitudinal beam, and the rear mounting supports are symmetrically provided with rear mounting supports which are symmetrically arranged at the rear mounting supports.
Preferably, the cross-section of the first extension arm is an "I" shaped cross-section with two opposing grooves.
Preferably, the cross section of the side beam at the mounting surface of the transverse stabilizer bar is in an S-shaped cross section, two staggered grooves are formed, the opening of one groove is upward, the opening of the other groove is downward, and the upper end surface of the groove with the downward opening is the mounting surface of the transverse stabilizer bar.
Preferably, the upper end face of the second extension arm is provided with a reinforcing rib.
Preferably, the concave grooves with downward openings of the longitudinal beam and the transverse beam are respectively provided with a reinforcing rib.
Preferably, the front suspension bracket and the transverse stabilizer bar mounting surface are integrally cast with the auxiliary frame body.
The beneficial effect of adopting above-mentioned scheme:
The utility model provides an integral type low pressure casting sub vehicle frame, includes integrated into one piece cast sub vehicle frame body, the sub vehicle frame body includes left longeron, right longeron, front beam, middle cross beam, rear cross beam, its characterized in that: the auxiliary frame comprises a left longitudinal beam, a right longitudinal beam, a front transverse beam, a middle transverse beam and a rear transverse beam of an auxiliary frame body, wherein the left longitudinal beam, the right longitudinal beam, the front transverse beam and the rear transverse beam are of solid structures with concave grooves with downward openings, the left end and the right end of the front transverse beam extend outwards respectively to form symmetrical first extension arms, front automobile body connecting holes which are used for being connected with an automobile body are formed in the first extension arms and vertically downwards, front mounting supports which extend outwards are arranged at the connecting positions of the first extension arms and the longitudinal beams, front control arm mounting holes are formed in the front mounting supports, rear mounting supports which extend outwards are symmetrically arranged at the outer sides of the rear sections of the left longitudinal beam and the right longitudinal beam, rear control arm mounting holes are formed in the rear mounting supports, vertical downward diverter mounting holes are formed in the middle section of the middle transverse beam, front suspension brackets are arranged in the middle section of the rear transverse beam, longitudinal beams extend outwards to form symmetrical second extension arms, vertical downward rear automobile body connecting holes which are used for being connected with the automobile body are formed in the second extension arms, transverse stabilizer bars are symmetrically arranged at the rear ends of the left longitudinal beam and the right longitudinal beam, and the rear mounting supports are symmetrically provided with rear mounting supports which are symmetrically arranged at the rear mounting supports. The subframe body adopts a concave entity structure with a downward opening, so that a sand core structure is omitted, the die sinking cost is reduced, and meanwhile, a plurality of defects of the sand core structure are avoided, for example:
⑴ The sand core resin generates harmful gas to pollute the environment during casting;
⑵ The process is complex, and the quality control difficulty is high;
⑶ The sand core in the complex thin-wall part has large gas emission, poor air permeability and incomplete drying, and the sand core is large in gas generated during casting and difficult to smoothly discharge when no exhaust hole is drilled or deep drilling is performed, so that the casting has the defects of air holes and shrinkage cavities, and the mechanical properties of the product are general.
The cross section of the first extension arm is of an I-shaped cross section, and two grooves of the cross section are opposite. The cross-sectional shape is used to provide good bending stiffness.
The longitudinal beam is provided with a transverse stabilizer bar mounting surface, the cross section of the transverse stabilizer bar mounting surface is of an S-shaped cross section, two staggered grooves are formed, the opening of one groove is upward, the opening of the other groove is downward, and the upper end face of the groove with the downward opening is the transverse stabilizer bar mounting surface. The surface space on the auxiliary frame body is saved by adopting the cross section shape, the installation space is provided for the rear suspension direct split platform design, and meanwhile, the overlarge wall thickness of the local structure is avoided, so that the generation of casting defects can be reduced.
The upper end face of the second extension arm is provided with a reinforcing rib. This arrangement serves to ensure strength as well as rigidity.
Reinforcing ribs are arranged in concave grooves with downward openings of the longitudinal beams and the transverse beams. This arrangement serves to ensure strength as well as rigidity.
The front suspension bracket and the transverse stabilizer bar mounting surface are integrally cast with the auxiliary frame body. The arrangement can effectively save arrangement space, and meanwhile, the arrangement of chassis parts is more free.
The utility model has the advantages that:
① Compared with a welded aluminum alloy auxiliary frame, the welding auxiliary frame has better dimensional accuracy, better overall performance, no risk of welding cracking, simple process, high efficiency and low cost;
② Compared with a steel frame type front auxiliary frame, the front auxiliary frame has the advantages of light weight, low oil consumption, no need of welding, heat treatment process and the like;
③ Compared with the hollow casting auxiliary frame, the sand core is not needed to be additionally arranged, the die opening quantity is reduced, the cost is reduced, the process is simple, and the quality control difficulty is low.
Drawings
FIG. 1 is view A of a schematic structural diagram of the present utility model;
FIG. 2 is view B of the structural diagram of the present utility model;
FIG. 3 is a sectional view B-B of FIG. 1;
FIG. 4 is a cross-sectional view of a side rail and cross-beam of the present utility model;
Fig. 5 is a sectional view of fig. 1 taken along line C-C.
In the figure, 1 is an auxiliary frame body, 2 is a left longitudinal beam, 3 is a right longitudinal beam, 4 is a front cross beam, 5 is a middle cross beam, 6 is a rear cross beam, 7 is a first extension arm, 8 is a front vehicle body connecting hole, 9 is a front suspension bracket, 10 is a second extension arm, 11 is a rear vehicle body connecting hole, 12 is a front control arm mounting hole, 13 is a transverse stabilizer bar mounting surface, 14 is a rear control arm mounting hole, 15 is a steering gear mounting hole, 16 is a rear suspension bracket mounting hole, 17 is a front control arm mounting seat, 18 is a rear control arm mounting seat, and 19 is a reinforcing rib.
Detailed Description
As shown in fig. 1 to 5, an integrated low-pressure casting auxiliary frame comprises an auxiliary frame body 1 which is formed by integral casting, wherein the auxiliary frame body 1 comprises a left longitudinal beam 2, a right longitudinal beam 3, a front cross beam 4, a middle cross beam 5 and a rear cross beam 6, the left longitudinal beam 2, the right longitudinal beam 3, the front cross beam 4, the middle cross beam 5 and the rear cross beam 6 of the auxiliary frame body 1 are solid structures with concave grooves with downward openings, the left end and the right end of the front cross beam 4 respectively extend outwards and outwards to form symmetrical first extension arms 7, front vehicle body connecting holes 8 which are vertically downwards and are used for being connected with a vehicle body are formed on the first extension arms 7, front mounting supports 17 which extend outwards are arranged at the connecting parts of the first extension arms 7 and the longitudinal beams, front control arm mounting holes 12 are formed on the front mounting supports 17, the outer sides of the rear sections of the left longitudinal beam 2 and the right longitudinal beam 3 are symmetrically provided with rear mounting supports 18 which extend outwards, the rear mounting supports 18 are provided with rear control arm mounting holes 14, the middle sections of the left longitudinal beam 2 and the right longitudinal beam 3 are provided with vertical downward diverter mounting holes 15, the middle section of the middle cross beam 5 is provided with a front suspension bracket 9, the left end and the right end of the rear cross beam 6 respectively extend outwards to form symmetrical second extension arms 10, the second extension arms 10 are provided with vertical downward rear vehicle body connecting holes 11 which are used for being connected with a vehicle body, the rear ends of the left longitudinal beam 2 and the right longitudinal beam 3 are symmetrically provided with transverse stabilizer bar mounting surfaces 13, the left end and the right end of the rear cross beam 6 are symmetrically provided with rear suspension bracket mounting holes 16, the upper end surfaces of the second extension arms 10 are provided with reinforcing ribs 19, the openings of the longitudinal beam and the cross beam are downward concave grooves are respectively provided with reinforcing ribs, the reinforcing ribs are used to ensure strength and rigidity.
The first extension arm 7 has an i-shaped cross section with two opposite grooves, and has excellent bending rigidity when the cross section is used. The longitudinal beam is provided with the cross section of the transverse stabilizer bar mounting surface 13 and is S-shaped, two staggered grooves are formed, the opening of one groove is upward, the opening of the other groove is downward, the upper end surface of the downward opening groove is the transverse stabilizer bar mounting surface 13, the surface space on the auxiliary frame body is saved by adopting the cross section, the mounting space is provided for the rear suspension direct split platform design, meanwhile, the overlarge wall thickness of a local structure is avoided, and the generation of casting defects can be reduced. The front suspension bracket 9 and the transverse stabilizer bar mounting surface 13 are integrally cast and formed with the auxiliary frame body 1, so that arrangement space can be effectively saved, and meanwhile, the arrangement of chassis parts is more free.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the utility model, and those skilled in the art will appreciate that the modifications made to the utility model fall within the scope of the utility model without departing from the spirit of the utility model.
Claims (6)
1. The utility model provides an integral type low pressure casting sub vehicle frame, includes integrated into one piece cast sub vehicle frame body (1), sub vehicle frame body (1) include left longeron (2), right longeron (3), front beam (4), middle cross beam (5), rear cross beam (6), its characterized in that: left longeron (2), right longeron (3), front beam (4), well crossbeam (5), rear beam (6) of sub vehicle frame body (1) are for being equipped with the entity structure of the concave groove of opening decurrent, the left and right both ends of front beam (4) are respectively outside to stretch out longeron backward slant and extend, form symmetrical first extension arm (7), be equipped with on first extension arm (7) perpendicularly decurrent preceding automobile body connecting hole (8) that are used for being connected with the automobile body, first extension arm (7) are equipped with preceding erection support (17) that extend to the outside with the longeron, set up preceding control arm mounting hole (12) on preceding erection support (17), the rear end outside symmetry of left side longeron (2), right longeron (3) is equipped with outside to stretch out rear erection support (18), rear erection support (18) set up rear control arm mounting hole (14), left side longeron (2), right longeron (3) middle section are provided with perpendicular decurrent steering gear mounting hole (15), be equipped with front vehicle body connecting support (9) in middle section (5), extension arm (6) are equipped with on the back longeron (10) respectively, extension arm (10) are connected with the outside of the second extension arm (10) perpendicularly, extension arm (10) are formed on the back connection of the automobile body respectively The rear end of the right longitudinal beam (3) is symmetrically provided with a transverse stabilizer bar mounting surface (13), and the left end and the right end of the rear cross beam (6) are symmetrically provided with rear suspension bracket mounting holes (16).
2. The integrated low pressure casting subframe of claim 1 wherein: the first extension arm (7) has an I-shaped cross section with two opposite grooves.
3. The integrated low pressure casting subframe of claim 1 wherein: the cross section of the longitudinal beam, at which the transverse stabilizer bar mounting surface (13) is arranged, is an S-shaped cross section, two staggered grooves are formed, the opening of one groove is upward, the opening of the other groove is downward, and the upper end surface of the groove with the downward opening is the transverse stabilizer bar mounting surface (13).
4. The integrated low pressure casting subframe of claim 1 wherein: the upper end face of the second extension arm (10) is provided with a reinforcing rib (19).
5. The integrated low pressure casting subframe of claim 1 wherein: reinforcing ribs are arranged in concave grooves with downward openings of the longitudinal beams and the transverse beams.
6. The integrated low pressure casting subframe of claim 1 wherein: the front suspension bracket (9) and the transverse stabilizer bar mounting surface (13) are integrally cast with the auxiliary frame body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322826425.5U CN220842683U (en) | 2023-10-20 | 2023-10-20 | Integrated low-pressure casting auxiliary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322826425.5U CN220842683U (en) | 2023-10-20 | 2023-10-20 | Integrated low-pressure casting auxiliary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220842683U true CN220842683U (en) | 2024-04-26 |
Family
ID=90745268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322826425.5U Active CN220842683U (en) | 2023-10-20 | 2023-10-20 | Integrated low-pressure casting auxiliary frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220842683U (en) |
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2023
- 2023-10-20 CN CN202322826425.5U patent/CN220842683U/en active Active
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