CN113276947A - Integral low-pressure casting hollow front auxiliary frame - Google Patents
Integral low-pressure casting hollow front auxiliary frame Download PDFInfo
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- CN113276947A CN113276947A CN202110728053.5A CN202110728053A CN113276947A CN 113276947 A CN113276947 A CN 113276947A CN 202110728053 A CN202110728053 A CN 202110728053A CN 113276947 A CN113276947 A CN 113276947A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/09—Means for mounting load bearing surfaces
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Abstract
The invention provides an integral low-pressure casting hollow front auxiliary frame which comprises a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam, wherein rear vehicle body mounting structures are arranged at the rear ends of the left longitudinal beam and the right longitudinal beam; the front side walls at two ends of the front cross beam are provided with horizontal connecting arms, the front ends of the connecting arms are provided with front extension beam mounting structures, and swing arm front point mounting structures are arranged inside the front extension beam mounting structures; the front cross beam is sequentially provided with a left suspension mounting structure, a steering engine front point mounting structure and a right suspension mounting structure, and the left longitudinal beam and the right longitudinal beam are provided with a swing arm rear point mounting structure and a steering engine rear point mounting structure; the two ends of the left longitudinal beam and the right longitudinal beam are provided with sand core positioning holes; the rear cross beam is provided with an aluminum lifting lug hook; the width of the rear cross beam is smaller than the width of the front cross beam, the width of the left longitudinal beam and the width of the right longitudinal beam. The invention can reduce the weight of the front auxiliary frame, and each mounting structure is reasonably distributed, so that the front auxiliary frame is uniformly stressed.
Description
Technical Field
The invention relates to the field of front auxiliary frames, in particular to an integral low-pressure casting hollow front auxiliary frame.
Background
Most of traditional front auxiliary frames are steel-structure auxiliary frames, the structure is heavy, the cost of a die is high, the manufacturing process is complex, therefore, aluminum alloy auxiliary frames are developed, but most of traditional aluminum alloy auxiliary frames are integral solid structures or split type welding structures, the integral solid structures are U-shaped structures due to the manufacturing process, and a large number of reinforcing ribs are arranged in the U-shaped structures for ensuring the strength; the split welding type auxiliary frame is mainly welded by a casting and an extruded section or welded by a stamping section and an extruded section, so that the weight of the aluminum alloy auxiliary frame is reduced but is still not obvious enough; and the welding type aluminum subframe is still complex in process. In order to further reduce the weight and simplify the process, CN201822088237 discloses an integrally formed hollow cast aluminum rear subframe, which is integrally cast and formed by aluminum alloy, but the rear subframe is different from the front subframe in terms of the equipment to be suspended, and the positions and specific structures of suspension points need to be redesigned to ensure the strength and facilitate the casting and forming. Application number 201621076707.1's utility model discloses a sub vehicle frame before integral casting aluminum alloy, the frame part is hollow, subtracts heavy effect not good. Application number is 201821777142.9's utility model discloses a sub vehicle frame before hollow aluminum alloy of integrative casting, for whole hollow structure, nevertheless all set up various mounting structure (steering gear mounting structure, swing arm mounting structure, automobile body mounting structure and suspension mounting structure) that link to each other with other equipment on controlling the longeron, lead to its length of controlling the longeron great, the cavity area that front beam, back beam, left longeron and right longeron enclose is big, whole volume is great. In addition, because the connecting points are concentrated on the left longitudinal beam and the right longitudinal beam, the left longitudinal beam and the right longitudinal beam bear larger stress after being assembled with other equipment, the requirement on strength is high, and the manufacturing difficulty is increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing an integral low-pressure casting hollow front auxiliary frame which is smaller in volume and weight, uniform in distribution of all mounting structures, capable of preventing mounting stress from concentrating and capable of reducing the requirement on strength.
The technical scheme adopted by the invention for solving the technical problems is as follows: the integral low-pressure casting hollow front auxiliary frame comprises a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam which are integrally cast, wherein the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are all of hollow structures, rear vehicle body mounting structures are arranged at the rear ends of the left longitudinal beam and the right longitudinal beam, inclined support arms are arranged at two ends of the front cross beam, and front vehicle body mounting structures are arranged at the upper ends of the support arms; the front side walls at two ends of the front cross beam are provided with horizontal connecting arms, the front ends of the connecting arms are provided with front extension beam mounting structures, and swing arm front point mounting structures are arranged inside the front extension beam mounting structures; the front cross beam is sequentially provided with a left suspension mounting structure, a steering engine front point mounting structure and a right suspension mounting structure, and the left longitudinal beam and the right longitudinal beam are provided with a swing arm rear point mounting structure and a steering engine rear point mounting structure; two ends of the left longitudinal beam and the right longitudinal beam are provided with sand core positioning holes; the rear cross beam is provided with an aluminum lifting lug hook; the width of the rear cross beam is smaller than the width of the front cross beam, the width of the left longitudinal beam and the width of the right longitudinal beam.
Furthermore, the section of the supporting arm is H-shaped, the bottom edge of the supporting arm is L-shaped, and the bottom edge of the supporting arm is connected with the side wall and the top wall of the left longitudinal beam or the right longitudinal beam.
Furthermore, the upper end of the supporting arm is provided with a supporting sleeve, the vertical section of the supporting sleeve is in an inverted concave shape, the front vehicle body mounting structure comprises a positioning sleeve arranged on the upper surface of the supporting sleeve, a first positioning hole extending from the upper surface of the positioning sleeve to the lower surface of the top wall of the supporting sleeve is arranged on the positioning sleeve, and a separation opening extending from the side wall of the first positioning hole to the outer wall of the positioning sleeve is arranged on the positioning sleeve.
Furthermore, a plurality of reinforcing ribs are arranged between the side wall of the positioning sleeve and the upper surface of the support sleeve.
Further, the connecting arm comprises a bottom plate, side plates and a top plate, the bottom plate, the side plates and the top plate enclose a groove body with an opening on one side, a pair of vertical connecting plates are arranged inside the groove body, and the swing arm front point mounting structure is a second positioning hole formed in the connecting plates.
Furthermore, a pair of horizontal connecting lugs is arranged at the front end of the connecting arm, a reinforcing boss is arranged on the upper surface of the connecting lug above the connecting lug, and the front extension beam mounting structure is a third positioning hole arranged on the reinforcing boss and the connecting lug below the reinforcing boss.
Further, be provided with left suspension installation section on the front beam, the preceding lateral wall and the back lateral wall opening of left side suspension installation section, and the roof upper surface and the diapire upper surface of left side suspension installation section all are provided with the location boss, left side suspension mounting structure is the vertical fourth locating hole that runs through the location boss.
Further, the right suspension mounting structure is a fifth positioning hole formed in the top wall and the front side wall of the front cross beam.
Furthermore, the steering engine front point mounting structure, the swing arm rear point mounting structure and the steering engine rear point mounting structure comprise connecting sleeves, the upper ends of the connecting sleeves penetrate through the top walls of the front cross beam, the left longitudinal beam and the right longitudinal beam, the lower ends of the connecting sleeves penetrate through the bottom walls of the front cross beam, the left longitudinal beam and the right longitudinal beam, and sixth positioning holes are formed in the connecting sleeves.
Further, the aluminum lifting lug hook is welded on the rear cross beam.
The invention has the beneficial effects that: set up the support arm through the both ends at the front beam, the front beam both ends set up the linking arm, preceding automobile body mounting structure sets up on the support arm, point mounting structure sets up on the linking arm before preceding automobile body mounting structure and the swing arm, replaces and directly sets up preceding automobile body mounting structure, preceding beam mounting structure and the point mounting structure before the swing arm on front beam, left longeron and right longeron to can reduce the length of left longeron and right longeron, the main part of preceding sub vehicle frame occupies space still less, and reduce weight. Through setting up the support arm slope, and the linking arm level sets up, preceding automobile body mounting structure sets up in the upper end of support arm, and the nose beam mounting structure is located the front end of linking arm, and the swing arm front point mounting structure is located the inside of linking arm, and each mounting structure dispersion sets up in three-dimensional space, and it is more reasonable to distribute, and the later stage has more wide operating space before with when sub vehicle frame is connected with other various equipment, can improve assembly efficiency. In addition, other mounting structure relatively evenly distribute on front beam, left longeron and right longeron, and with other equipment connection backs, the stress distribution of junction is relatively even, can improve the stability of whole front sub vehicle frame, guarantees life. Finally, because the rear cross beam is not provided with a mounting structure, the integrity is better, the width of the rear cross beam is smaller than the width of the front cross beam, the left longitudinal beam and the right longitudinal beam, the strength requirement can be met, the weight and the volume of the rear cross beam are reduced, and the weight of the whole front auxiliary frame is further reduced.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a top schematic view of the front vehicle body mounting structure;
FIG. 3 is a schematic cross-sectional view A-A of FIG. 2;
FIG. 4 is a top schematic view of the rear vehicle body mounting structure;
FIG. 5 is a schematic cross-sectional view of B-B of FIG. 4;
FIG. 6 is a schematic view of a forward beam mounting structure;
FIG. 7 is a schematic cross-sectional view of C-C of FIG. 6;
FIG. 8 is a cross-sectional schematic view of a swing arm rear point mounting structure;
FIG. 9 is a schematic top view of the right suspension mounting structure;
FIG. 10 is a schematic cross-sectional view of F-F in FIG. 9;
reference numerals: 1-front beam; 2-rear cross beam; 3-left longitudinal beam; 4-right longitudinal beam; 5-rear vehicle body mounting structure; 6-a support arm; 7-front vehicle body mounting structure; 8-a linking arm; 9-a swing arm front point mounting structure; 10-a front extension beam mounting structure; 11-left suspension mounting structure; 12-a steering gear front point mounting structure; 13-right suspension mounting structure; 14-a swing arm rear point mounting structure; 15-a rear point mounting structure of the steering gear; 16-positioning holes of the sand core; 17-aluminum lifting lug hanging hooks; 18-a support sleeve; 19-a disengagement port; 20-a first positioning hole; 21-connecting plate; 22-connecting the tab; 23-reinforcing bosses; 24-positioning the boss; 25-reinforcing ribs.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in figure 1, the integral low-pressure casting hollow front auxiliary frame is made of aluminum alloy and integrally formed through low-pressure casting, and comprises a front cross beam 1, a rear cross beam 2, a left longitudinal beam 3 and a right longitudinal beam 4, wherein the front cross beam 1, the rear cross beam 2, the left longitudinal beam 3 and the right longitudinal beam 4 are all of hollow structures.
And rear vehicle body mounting structures 5 are arranged at the rear ends of the left longitudinal beam 3 and the right longitudinal beam 4, and the rear vehicle body mounting structures 5 are used for mounting the front auxiliary vehicle frame on a vehicle body. As shown in fig. 4 and 5, the rear vehicle body mounting structure 5 specifically includes a vertical mounting column, and a central through hole is formed in the mounting column. In order to secure the connection strength, it is necessary to use bolts of M16 or more, and thus, the diameter of the central through hole is 18 mm. The height of the mounting column body is higher than or equal to 50mm, and the wall thickness is larger than or equal to 12.2mm, so that the connection strength is met.
Two ends of the front cross beam 1 are provided with inclined supporting arms 6, and the upper ends of the supporting arms 6 are provided with front vehicle body mounting structures 7; the front side walls at two ends of the front cross beam 1 are provided with horizontal connecting arms 8, the front ends of the connecting arms 8 are provided with front extension beam mounting structures 10, and swing arm front point mounting structures 9 are arranged inside the front extension beam mounting structures.
The section of support arm 6 can be rectangle ring shape etc. and is preferred, and the section of support arm 6 is H shape, and structural strength is high, and the consumptive material is few, and the base of support arm 6 is L shape, and the base of support arm 6 links to each other with the lateral wall and the roof of left longeron 3 or right longeron 4 for the area of being connected of support arm 6 and left longeron 3 or right longeron 4 is enough big, improves joint strength.
The front vehicle body mounting structure 7 is used for mounting the front auxiliary frame on a vehicle body, specifically, as shown in fig. 2 and fig. 3, a support sleeve 18 is arranged at the upper end of the support arm 6, the vertical section of the support sleeve 18 is in an inverted concave shape, the front vehicle body mounting structure 7 comprises a positioning sleeve arranged on the upper surface of the support sleeve 18, the height of the positioning sleeve is 40mm, and a plurality of reinforcing ribs 25 are arranged between the side wall of the positioning sleeve and the upper surface of the support sleeve 18 to ensure the structural strength of the positioning sleeve. Be provided with on the position sleeve and extend to the first locating hole 20 that supports 18 roof lower surfaces of cover from the position sleeve upper surface, the diameter of first locating hole 20 is 18mm, be provided with on the position sleeve and extend to the break away from mouth 19 of position sleeve outer wall from first locating hole lateral wall, the width that breaks away from mouth 19 increases from first locating hole 20 to the position sleeve outer wall gradually to overlap first locating hole 20 on the automobile body through break away from mouth 19 during the installation, in addition, when whole car collided, the position sleeve should break away from the automobile body, just can satisfy whole car collision requirement after setting up break away from mouth 19.
The connecting arm 8 comprises a bottom plate, side plates and a top plate, the bottom plate, the side plates and the top plate are enclosed to form a groove body with an opening on one side, namely a structure similar to channel steel, the end face of the groove body is sealed, a pair of vertical connecting plates 21 are arranged inside the groove body, the swing arm front point mounting structure 9 is a second positioning hole formed in the connecting plates 21, and the second positioning holes in the two connecting plates 21 are coaxial. The distance between the two connecting plates 21 is 60mm to fit into the front swing arm bushing, and one side of the connecting arm 8 is open to facilitate the extension of the front swing arm into the connecting arm 8. The diameter of the front side hole of the second positioning hole is 14.5mm, and the rear side hole is arranged in the boss and is an M14 threaded through hole, so that the front swing arm bushing can be locked by an M14 bolt. In addition, use the screw hole to replace the nut on the sub vehicle frame before whole, can cancel the nut process when the assembly, improve assembly efficiency and convenience.
The front end of the connecting arm 8 is provided with a pair of horizontal connecting lugs 22, as shown in fig. 6 and 7, the upper surface of the upper connecting lug 22 is provided with a reinforcing boss 23, and the front beam mounting structure 10 is a third positioning hole arranged on the reinforcing boss 23 and the lower connecting lug 22. The number of the reinforcing bosses 23 is two, each reinforcing boss 23 is provided with a third positioning hole, the third positioning holes are M8 threaded through holes, and the depth of the third positioning holes in the reinforcing bosses 23 is 20mm, so that the connecting strength is ensured.
Set up support arm 6 through the both ends at front beam 1, front beam 1 both ends set up linking arm 8, preceding automobile body mounting structure 7 sets up on support arm 6, point mounting structure 9 sets up on linking arm 8 before protrusive roof beam mounting structure 10 and the swing arm, replace preceding automobile body mounting structure 7, protrusive roof beam mounting structure 10 and the direct setting of point mounting structure 9 before the swing arm are at front beam 1, left longitudinal beam 3 and right longitudinal beam 4, thereby can reduce the length of left longitudinal beam 3 and right longitudinal beam 4, the main part of preceding sub vehicle frame occupies space still less, and reduce weight. Through setting up the slope of support arm 6, and 8 levels of linking arm set up, preceding automobile body mounting structure 7 sets up in the upper end of support arm 6, and preceding cantilever beam mounting structure 10 is located the front end of linking arm 8, and point mounting structure 9 is located the inside of linking arm 8 before the swing arm, and each mounting structure dispersion sets up in three-dimensional space, and it is more reasonable to distribute, and the later stage has wider operating space before with when being connected with other various equipment, can improve assembly efficiency.
Front beam 1 is last to have set gradually left suspension mounting structure 11, to turn to quick-witted front point mounting structure 12 and right suspension mounting structure 13, specifically, be provided with left suspension installation section on the front beam 1, left side suspension installation section's preceding lateral wall and back lateral wall opening, left suspension installation section department promptly cancels preceding lateral wall and back lateral wall, only remains roof and diapire, and left side suspension installation section's roof upper surface and diapire upper surface all are provided with location boss 24, left side suspension mounting structure 11 is the vertical fourth locating hole that runs through location boss 24. The fourth locating hole is the through-hole that runs through location boss 24, and the fourth locating hole that is located the roof is the M14 screw hole, and length is 35mm, guarantees joint strength. The diameter of the fourth positioning hole on the bottom wall is 15 mm. Because opening around the left side suspension installation section, can put into left suspension installation section with left suspension from the front opening, then utilize the left suspension of bolt-up, simultaneously, suspension support can produce in left suspension work and rock, and the clearance is guaranteed to rock simultaneously to the front and back opening, avoids interfering and abnormal sound. As shown in fig. 9 and 10, the right suspension mounting structure 13 is a fifth positioning hole provided in the top wall and the front side wall of the front beam 1, and the fifth positioning hole is two M10 through holes located in the top wall of the front beam 1 and two M10 through holes located in the front side wall of the front beam 1, so as to ensure the strength and rigidity of the right suspension in the vertical and longitudinal directions.
And a swing arm rear point mounting structure 14 and a steering gear rear point mounting structure 15 are arranged on the left longitudinal beam 3 and the right longitudinal beam 4. Fig. 8 is a schematic cross-sectional view of the swing arm rear point mounting structure 14, and the steering gear front point mounting structure 12 and the steering gear rear point mounting structure 15 are similar thereto. The steering engine front point mounting structure 12, the swing arm rear point mounting structure 14 and the steering engine rear point mounting structure 15 comprise connecting sleeves, the upper ends of the connecting sleeves penetrate through the top walls of the front cross beam 1, the left longitudinal beam 3 and the right longitudinal beam 4, the lower ends of the connecting sleeves penetrate through the bottom walls of the front cross beam 1, the left longitudinal beam 3 and the right longitudinal beam 4, sixth positioning holes are formed in the connecting sleeves, and the connecting sleeves have enough length to guarantee connecting strength. A sixth positioning hole of the swing arm rear point mounting structure 14 is two through holes with the diameter of 15mm and is used for mounting an M14 bolt; a sixth positioning hole of the steering engine front point mounting structure 12 is a through hole with the diameter of 15mm and is used for mounting an M14 bolt; the sixth positioning hole of the steering gear rear point mounting structure 15 is a through hole with the diameter of 14mm and is used for mounting an M12 bolt.
The front end, the rear end and the inner side of the left longitudinal beam 3 and the right longitudinal beam 4 are respectively provided with a sand core positioning hole 16, and the sand core positioning holes 16 are directly attached to the inner side surface of the mold through structural characteristic surfaces of the sand core positioning holes 16, so that the sand core does not shake after the mold is closed, the positioning is accurate, and the hollow characteristic and the wall thickness accuracy of the front auxiliary frame are ensured.
The rear cross beam 2 is provided with an aluminum lifting lug hook 17, and the aluminum lifting lug hook 17 is welded on the rear cross beam 2. Meanwhile, most of aluminum lifting lug hooks are of steel structures, mounting supports are arranged between the aluminum lifting lug hooks and the front auxiliary frame, the steel aluminum lifting lug hooks and the mounting supports are welded into a whole firstly, then the steel aluminum lifting lug hooks and the mounting supports are mounted on the auxiliary frame through bolts, under the condition that the use strength and the rigidity of the requirement are the same, the steel structure parts are various, the part manufacturing process and the assembling process are also complex, and the whole weight is 6.5 times that of the aluminum lifting lug structure.
Rear vehicle body mounting structure 5, left side suspension mounting structure 11, turn to quick-witted front point mounting structure 12 and right suspension mounting structure 13, point mounting structure 14 behind the swing arm, turn to quick-witted rear point mounting structure 15 and sand core locating hole 16 and distribute more evenly on front beam 1, left longitudinal beam 3 and right longitudinal beam 4, after being connected with other equipment, the stress distribution of each junction is more even, avoided stress concentration on left longitudinal beam 3 and right longitudinal beam 4, can reduce the intensity requirement to left longitudinal beam 3 and right longitudinal beam 4, improve the stability of whole preceding sub vehicle frame simultaneously, guarantee life.
Because each mounting structure distributes on front beam 1, left longeron 3 and right longeron 4, does not set up mounting structure on the rear beam 2, does not need the trompil, and the wholeness is better, and structural strength is higher, consequently, rear beam 2's width is less than front beam 1, left longeron 3 and right longeron 4's width, when satisfying the intensity requirement, alleviates rear beam 2's weight and volume, simultaneously, can be in the regional large tracts of land trompil of non-stress concentration in sub vehicle frame bottom to reduce the weight of whole front sub vehicle frame.
In the present invention, after the front subframe is mounted to the vehicle body, the direction toward the vehicle head is defined as the front, and the direction toward the vehicle tail is defined as the rear.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Integral low pressure casting hollow front sub vehicle frame, including integrated casting fashioned front beam (1), rear frame member (2), left longeron (3) and right longeron (4), front beam (1), rear frame member (2), left longeron (3) and right longeron (4) are hollow structure, the rear end of left longeron (3) and right longeron (4) is provided with back automobile body mounting structure (5), its characterized in that: two ends of the front cross beam (1) are provided with inclined supporting arms (6), and the upper ends of the supporting arms (6) are provided with front vehicle body mounting structures (7); the front side walls at two ends of the front cross beam (1) are provided with horizontal connecting arms (8), the front ends of the connecting arms (8) are provided with front extension beam mounting structures (10), and swing arm front point mounting structures (9) are arranged inside the front extension beam mounting structures; a left suspension mounting structure (11), a steering machine front point mounting structure (12) and a right suspension mounting structure (13) are sequentially arranged on the front cross beam (1), and a swing arm rear point mounting structure (14) and a steering machine rear point mounting structure (15) are arranged on the left longitudinal beam (3) and the right longitudinal beam (4); sand core positioning holes (16) are formed in the two ends of the left longitudinal beam (3) and the right longitudinal beam (4); the rear cross beam (2) is provided with an aluminum lifting lug hook (17); the width of the rear cross beam (2) is smaller than the width of the front cross beam (1), the width of the left longitudinal beam (3) and the width of the right longitudinal beam (4).
2. The integrated low pressure cast hollow front subframe of claim 1 wherein: the section of the supporting arm (6) is H-shaped, the bottom edge of the supporting arm (6) is L-shaped, and the bottom edge of the supporting arm (6) is connected with the side wall and the top wall of the left longitudinal beam (3) or the right longitudinal beam (4).
3. The integrated low pressure cast hollow front subframe of claim 1 wherein: the upper end of support arm (6) is provided with supports cover (18), the vertical cross-section that supports cover (18) is the character of falling the concave font, preceding automobile body mounting structure (7) are including setting up the position sleeve at support cover (18) upper surface, be provided with on the position sleeve and extend to the first locating hole (20) that supports cover (18) roof lower surface from the position sleeve upper surface, be provided with on the position sleeve and extend to disengagement opening (19) of position sleeve outer wall from first locating hole lateral wall.
4. The integrated low pressure cast hollow front subframe of claim 3 wherein: a plurality of reinforcing ribs (25) are arranged between the side wall of the positioning sleeve and the upper surface of the supporting sleeve (18).
5. The integrated low pressure cast hollow front subframe of claim 1 wherein: the connecting arm (8) comprises a bottom plate, side plates and a top plate, the bottom plate, the side plates and the top plate are enclosed to form a groove body with one side opened, a pair of vertical connecting plates (21) are arranged inside the groove body, and the swing arm front point mounting structure (9) is a second positioning hole formed in the connecting plates (21).
6. The integrated low pressure cast hollow front subframe of claim 5 wherein: the front end of the connecting arm (8) is provided with a pair of horizontal connecting lugs (22), the upper surface of the connecting lug (22) positioned above is provided with a reinforcing boss (23), and the front extension beam mounting structure (10) is a third positioning hole formed in the reinforcing boss (23) and the connecting lug (22) positioned below.
7. The integrated low pressure cast hollow front subframe of claim 1 wherein: be provided with left suspension installation section on front beam (1), the preceding lateral wall and the back lateral wall opening of left side suspension installation section, and the roof upper surface and the diapire upper surface of left side suspension installation section all are provided with location boss (24), left side suspension mounting structure (11) are the vertical fourth locating hole that runs through location boss (24).
8. The integrated low pressure cast hollow front subframe of claim 1 wherein: and the right suspension mounting structure (13) is a fifth positioning hole arranged on the top wall and the front side wall of the front cross beam (1).
9. The integrated low pressure cast hollow front subframe of claim 1 wherein: the steering engine front point mounting structure (12), the swing arm rear point mounting structure (14) and the steering engine rear point mounting structure (15) comprise connecting sleeves, the upper ends of the connecting sleeves penetrate through the top walls of the front cross beam (1), the left longitudinal beam (3) and the right longitudinal beam (4), the lower ends of the connecting sleeves penetrate through the bottom walls of the front cross beam (1), the left longitudinal beam (3) and the right longitudinal beam (4), and sixth positioning holes are formed in the connecting sleeves.
10. The integrated low pressure cast hollow front subframe of claim 1 wherein: and the aluminum lifting lug hook (17) is welded on the rear cross beam (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110728053.5A CN113276947B (en) | 2021-06-29 | 2021-06-29 | Integral low-pressure casting hollow front auxiliary frame |
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| CN202110728053.5A CN113276947B (en) | 2021-06-29 | 2021-06-29 | Integral low-pressure casting hollow front auxiliary frame |
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| CN113276947B CN113276947B (en) | 2022-05-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114682741A (en) * | 2022-04-11 | 2022-07-01 | 宁波百宏模具有限公司 | A core structure of an automobile subframe mold |
| CN116443103A (en) * | 2022-01-10 | 2023-07-18 | 本田技研工业株式会社 | Vehicle frame structure |
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| DE102009008841A1 (en) * | 2009-02-13 | 2010-08-19 | Volkswagen Ag | Subframe for retaining and/or supporting e.g. steering transmission in front carriage of motor vehicle, has rear traverse element with section engaged by connection element that is firmly connected on both ends of rear traverse element |
| CN207450024U (en) * | 2017-11-27 | 2018-06-05 | 重庆同捷工业设计有限公司 | A kind of vehicle auxiliary frame structure |
| CN108657278A (en) * | 2018-06-01 | 2018-10-16 | 北京长城华冠汽车科技股份有限公司 | Fore sub frame assembly and vehicle |
| CN209037663U (en) * | 2018-10-10 | 2019-06-28 | 上汽通用汽车有限公司 | The full frame subframe of one and vehicle |
| CN208947405U (en) * | 2018-10-31 | 2019-06-07 | 安徽万安汽车零部件有限公司 | An integral casting hollow aluminum alloy front subframe |
| CN209553306U (en) * | 2018-12-13 | 2019-10-29 | 中国第一汽车股份有限公司 | A kind of integrally formed hollow cast aluminium Rear secondary frame for vehicle |
| CN209535205U (en) * | 2019-01-17 | 2019-10-25 | 爱驰汽车有限公司 | Subframe and the automobile for applying it |
| CN210707611U (en) * | 2019-09-26 | 2020-06-09 | 上汽通用五菱汽车股份有限公司 | Front-mounted front-drive electric automobile frame type front auxiliary frame |
| CN212149011U (en) * | 2019-12-31 | 2020-12-15 | 中国第一汽车股份有限公司 | Screwed front auxiliary frame for passenger car |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116443103A (en) * | 2022-01-10 | 2023-07-18 | 本田技研工业株式会社 | Vehicle frame structure |
| CN114682741A (en) * | 2022-04-11 | 2022-07-01 | 宁波百宏模具有限公司 | A core structure of an automobile subframe mold |
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| CN113276947B (en) | 2022-05-06 |
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Correction item: transfer of patent right Correct: SICHUAN JIAN'AN INDUSTRIAL Ltd.|No.6, Binhe East Road, Jingkai District, Ya'an City, Sichuan Province 625000 False: SICHUAN JIAN'AN INDUSTRIAL Ltd.|No.6, Binhe East Road, Jingkai District, Ya'an City, Sichuan Province 625000|Hubei Huazhong Changjiang Photoelectric Technology Co.,Ltd. Number: 04-01 Volume: 39 |
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