CN114130960B - Preparation method of trailing arm assembly of rear torsion beam suspension - Google Patents
Preparation method of trailing arm assembly of rear torsion beam suspension Download PDFInfo
- Publication number
- CN114130960B CN114130960B CN202111422675.1A CN202111422675A CN114130960B CN 114130960 B CN114130960 B CN 114130960B CN 202111422675 A CN202111422675 A CN 202111422675A CN 114130960 B CN114130960 B CN 114130960B
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- China
- Prior art keywords
- casting liquid
- arm assembly
- cavity
- trailing arm
- runner
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000004062 sedimentation Methods 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 25
- 238000000926 separation method Methods 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 10
- 239000000919 ceramic Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/086—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/02—Resilient suspensions for a single wheel with a single pivoted arm
- B60G3/12—Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/81—Shaping
- B60G2206/8101—Shaping by casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a preparation method of a trailing arm assembly of a rear torsion beam suspension, which comprises the steps of manufacturing a mould and a core for casting the trailing arm assembly, and assembling the core with the mould; the casting liquid receiving component and the pouring channel system for casting the waves are manufactured, the casting liquid receiving component is connected with the pouring channel system, the pouring channel system is connected with the die, the smelted casting liquid is input into the input cavity, when the casting liquid passes through the residue sedimentation channel, the filtering component filters residues in the casting liquid, the casting liquid passing through the filtering component enters the output cavity and is output into the pouring channel system along the output channel, finally the casting liquid enters a cavity formed by a core of the die, and the casting liquid is cooled and molded in the cavity to obtain the trailing arm assembly. The invention ensures the strength and the quality of the trailing arm assembly by reducing the number of welding seams on the trailing arm assembly.
Description
Technical Field
The invention relates to the technical field of rear torsion beam suspensions of automobiles, in particular to a preparation method of a rear torsion beam suspension longitudinal arm assembly.
Background
The torsion beam semi-independent suspension is a rear suspension structure of an automobile commonly used at present, longitudinal arms on the left side and the right side are welded together through a torsion beam with an integral V-shaped or U-shaped section, the front ends of the longitudinal arms are connected with a vehicle body in a twisting mode through rubber-metal supports, and the rear ends of the longitudinal arms are connected with a hub, a shock absorber and a spring. The longitudinal arm of the torsion beam can swing up and down around the hard connecting point so as to absorb shock through the shock absorber and the shock absorption spring, and when the suspensions at two sides are not deformed, the torsion beam is deformed in a torsion way, and the torsion beam has larger elasticity and can play a role of a transverse stabilizer bar. Torsion beams are therefore critical components in torsion beam semi-independent suspensions, which act to transfer forces, stresses and connect the balanced sides, whereas suspensions are related to vehicle handling and comfort.
Generally, a trailing arm assembly is formed by a cross beam and a trailing arm assembly, and the existing trailing arm assembly includes a trailing arm, a spring seat, a tire support, a damper support, and a liner tube, which are fixed to the trailing arm by welding to form the trailing arm assembly, and for the trailing arm assembly of such a structure, although manufacturing difficulty is reduced, uniformity of welding, such as uniformity of welding, cannot be agreed at each welding portion, and therefore, for reliability of welding, it cannot be ensured. In addition, because the torsion beam can bear very big force when the automobile runs on uneven road surface, the trailing arm welds more, easily appears the fracture, has seriously influenced the security and the stability of automobile.
Disclosure of Invention
The invention provides a preparation method of a trailing arm assembly of a rear torsion beam suspension.
The technical scheme for achieving the purpose is as follows:
the preparation method of the trailing arm assembly of the rear torsion beam suspension comprises the following steps of:
manufacturing a mould and a core for casting the trailing arm assembly, and assembling the core with the mould;
the casting liquid receiving component is connected with the pouring channel system, the pouring channel system is connected with a die, the casting liquid receiving component comprises a containing component, a separating component, a filtering component, a blocking part and an output channel, a first cavity is arranged on the containing component, the separating component is positioned in the containing component and is respectively fixed with the inner side wall surface of the containing component, a first interval is reserved between the separating component and the bottom surface of the containing component, one end of the filtering component is fixed with the separating component, the other end of the filtering component is matched with the blocking part, the blocking part is arranged on the bottom surface of the containing component, the height of the blocking part is larger than the first interval, the output channel is arranged at the bottom of the containing component and penetrates through the blocking part, and the separating component, the filtering component and the blocking part divide the first cavity of the containing component into an input cavity, a residue sedimentation channel and an output cavity;
and inputting the smelted casting liquid into an input cavity, filtering residues in the casting liquid by a filtering component when the casting liquid passes through a residue sedimentation channel, enabling the casting liquid passing through the filtering component to enter an output cavity and be output into a pouring channel system along the output channel, finally enabling the casting liquid to enter a cavity formed by a core of a die, and cooling and forming the casting liquid in the cavity to obtain the trailing arm assembly.
The side wall surface, the bottom surface and the surface of the partition component are all provided with fire resistant layers.
The blocking part is provided with a clamping part, the clamping part is provided with a first bayonet, the separation part is provided with a second bayonet, one end of the filtering part is clamped into the first bayonet, and the other end of the filtering part is clamped into the second bayonet.
The runner system includes: the sprue, first cross runner, second cross runner, branch gate, the input and the output channel of sprue are connected, first cross runner, second cross runner respectively with the output of sprue after being connected, form accommodation space between first cross runner, second cross runner, be connected with a plurality of branch gates respectively on first cross runner, the second cross runner, the mould is located accommodation space, branch gate and mould are connected.
For the casting liquid receiving part used in the invention, the separation part enables the casting liquid to flow along the gap between the separation part and the bottom surface of the accommodating part, firstly, the flow rate of the casting liquid is reduced, the blocking part has the functions of buffering the casting liquid, reducing the speed of the casting liquid, enabling the residual impurities contained in the casting liquid to have time to settle in the residue settling channel so as to improve the casting quality, and on the other hand, forcing the casting liquid to flow to the filtering part, and the quality of the casting liquid can be improved after the casting liquid is filtered by the filtering part. Because the trailing arm assembly is a key part on the rear torsion beam, the casting quality directly influences the quality of the trailing arm assembly.
According to the invention, the longitudinal arm, the spring seat, the tire support, the shock absorber support and the liner tube are cast into a whole, so that the welding seams are greatly reduced, and the safety is improved.
Drawings
FIG. 1 is a schematic structural view of a rear torsion beam suspension of the present invention;
FIG. 2 is a top view of the casting system of the present invention;
FIG. 3 is a cross-sectional view of the casting solution receiving member;
the reference symbols in the drawings:
the tire support comprises a cross beam 1, a trailing arm 2, a spring seat 3, a tire support 4, a damper support 5, a liner tube 6, a containing part 7, an input cavity 7a, a residue sedimentation channel 7B, an output cavity 7c, a separation part 8, a filtering part 9, a blocking part 10, an output channel 11, a clamping part 12, a sprue 13, a first runner 14, a second runner 15, a split gate 16, a first space H1, a die A and a containing space B.
Detailed Description
The preparation method of the trailing arm assembly of the rear torsion beam suspension comprises a trailing arm 2, a spring seat 3, a tire bracket 4, a shock absorber support 5 and a liner tube 6, and comprises the following steps:
manufacturing a mould A and a core for casting the longitudinal arm assembly, and assembling the core with the mould;
the casting liquid receiving component and the pouring channel system for casting are manufactured, the casting liquid receiving component is connected with the pouring channel system, the pouring channel system is connected with a die, wherein the casting liquid receiving component comprises a containing component 7, a separation component 8, a filtering component 9, a blocking part 10 and an output channel 11, a first cavity is arranged on the containing component 7, the separation component 8 is positioned in the containing component 7 and is respectively fixed with the inner side wall surface of the containing component 7, a first interval H1 is formed between the separation component 8 and the bottom surface of the containing component 7, one end of the filtering component 9 is fixed with the separation component 8, the other end of the filtering component 9 is matched with the blocking part 10, the blocking part 10 is arranged on the bottom surface of the containing component 7, the blocking part 10 is positioned on one side of the separation component 8, and a gap is formed between the blocking part 10 and the separation component 8, the gap is used for installing a part of the filtering component 9, and the height of the blocking part 10 is larger than the first interval H1. The output channel 11 is disposed at the bottom of the accommodating member 7 and penetrates the blocking portion 10, and the partition member 8, the filtering member 9, and the blocking portion 10 partition the first cavity of the accommodating member 7 into the input cavity 7a, the residue settling channel 7b, and the output cavity 7c.
The partition member 8 allows the casting liquid to flow along the gap between the partition member 8 and the bottom surface of the housing member 7, and first, the flow rate of the casting liquid is reduced, and the stopper 10 serves to buffer the casting liquid, reduce the speed of the casting liquid, and allow the remaining impurities contained in the casting liquid to settle in the residue settling passage 7b for a while, thereby improving the casting quality, and on the other hand, forces the casting liquid to flow to the filter member 9, so that the quality of the casting liquid can be improved after the casting liquid is filtered by the filter member 9. Because the trailing arm assembly is a key part on the rear torsion beam, the casting quality directly influences the quality of the trailing arm assembly.
And inputting melted casting liquid into the input cavity 7a, filtering residues in the casting liquid by the filtering component 9 when the casting liquid passes through the residue sedimentation channel 7b, enabling the casting liquid passing through the filtering component 9 to enter the output cavity 7c and be output into the pouring channel system along the output channel 11, finally enabling the casting liquid to enter a cavity formed by a core of a die, and cooling and forming the casting liquid in the cavity to obtain the trailing arm assembly.
The side wall surface, the bottom surface and the surface of the partition member 8 of the housing member 7 are each provided with a refractory layer. The refractory layer can be refractory bricks or ceramics, the refractory layer is preferably ceramics, the ceramics has the characteristic of smooth surface, and impurities in casting liquid can be conveniently cleaned after casting is finished. By providing the refractory layer, it is advantageous to reduce the expansion and deformation of the accommodating member 7 due to excessive heating, and thus, it is advantageous to ensure the service life of the accommodating member 7.
The blocking part 10 is provided with a clamping part 12, the clamping part 12 is provided with a first bayonet, the separation part 8 is provided with a second bayonet, one end of the filter part 9 is clamped into the first bayonet, and the other end of the filter part 9 is clamped into the second bayonet. In the invention, since the filter element 9 needs to be replaced after each casting, in order to quickly assemble or disassemble, the filter element 9 is assembled with the clamping element 12 and the separation element 8 in a clamping manner, which is beneficial to improving the assembling or disassembling efficiency.
The runner system comprises a sprue 13, a first runner 14, a second runner 15 and a sub-gate 16, wherein the input end of the sprue 13 is connected with an output channel 11, after the first runner 14 and the second runner 15 are respectively connected with the output end of the sprue 13, an accommodating space B is formed between the first runner 14 and the second runner 15, a plurality of sub-gates 16 are respectively connected to the first runner 14 and the second runner 15, a die A is positioned in the accommodating space B, and the sub-gates 16 are connected with the die A.
The casting liquid output from the output channel 11 enters the sprue 13, flows from the sprue 13 to the first runner 14 and the second runner 15 respectively, and finally flows from the branch gates 16 to the die A.
Because the trailing arm assembly is integrally formed by casting, the trailing arm assembly and the cross beam 1 are fixed in a welding manner when the rear torsion beam suspension is formed. Obviously, the obtained rear torsion beam suspension only has one welding line between the longitudinal arm assembly and the cross beam 1, and therefore, after a plurality of welding lines are reduced, the strength of the whole rear torsion beam is improved.
Finally, it should be noted that: the above embodiments are merely preferred embodiments of the present invention to illustrate the technical solution of the present invention, but not to limit the scope of the present invention; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme is included in the scope of the invention.
Claims (4)
1. The preparation method of the trailing arm assembly of the rear torsion beam suspension comprises a trailing arm (2), a spring seat (3), a tire support (4), a shock absorber support (5) and a liner tube (6), and is characterized by comprising the following steps:
manufacturing a mould (A) and a core for casting the longitudinal arm assembly, and assembling the core with the mould;
manufacturing a casting liquid receiving part and a pouring channel system for casting, wherein the casting liquid receiving part is connected with the pouring channel system, the pouring channel system is connected with a mould, the casting liquid receiving part comprises a containing part (7), a separation part (8), a filtering part (9), a blocking part (10) and an output channel (11), a first cavity is arranged on the containing part (7), the separation part (8) is positioned in the containing part (7) and is respectively fixed with the inner side wall surface of the containing part (7), a first interval (H1) is arranged between the separation part (8) and the bottom surface of the containing part (7), one end of the filtering part (9) is fixed with the separation part (8), the other end of the filtering part (9) is matched with the blocking part (10), the blocking part (10) is arranged on the bottom surface of the containing part (7), the height of the blocking part (10) is larger than the first interval (H1), and the output channel (11) is arranged at the bottom of the containing part (7) and penetrates through the blocking part (10), and the separation part (8), the filtering part (9) and the blocking part (10) are used for forming a first cavity of the containing part (7) and the first cavity (7 a) and a sedimentation cavity of the residue (7 c) by sedimentation cavity;
and inputting smelted casting liquid into an input cavity (7 a), filtering residues in the casting liquid by a filtering component (9) when the casting liquid passes through a residue sedimentation channel (7 b), enabling the casting liquid passing through the filtering component (9) to enter an output cavity (7 c) and be output into a runner system along an output channel (11), finally enabling the casting liquid to enter a cavity formed by a core of a die, and cooling and forming the casting liquid in the cavity to obtain the trailing arm assembly.
2. The manufacturing method of the trailing arm assembly of the trailing torsion beam suspension according to claim 1, wherein the side wall surface, the bottom surface of the housing member (7) and the surface of the partition member (8) are provided with refractory layers.
3. The method for manufacturing the trailing arm assembly of the rear torsion beam suspension according to claim 1, wherein the blocking portion (10) is provided with a clamping component (12), the clamping component (12) is provided with a first bayonet, the partition component (8) is provided with a second bayonet, one end of the filter component (9) is clamped into the first bayonet, and the other end of the filter component (9) is clamped into the second bayonet.
4. The method of making a trailing arm assembly for a trailing beam suspension according to claim 1, wherein the runner system comprises: the novel sprue structure comprises a sprue (13), a first runner (14), a second runner (15) and a sub-gate (16), wherein the input end of the sprue (13) is connected with an output channel (11), after the first runner (14) and the second runner (15) are respectively connected with the output end of the sprue (13), an accommodating space (B) is formed between the first runner (14) and the second runner (15), a plurality of sub-gates (16) are respectively connected to the first runner (14) and the second runner (15), a die (A) is located in the accommodating space (B), and the sub-gate (16) is connected with the die (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422675.1A CN114130960B (en) | 2021-11-26 | 2021-11-26 | Preparation method of trailing arm assembly of rear torsion beam suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422675.1A CN114130960B (en) | 2021-11-26 | 2021-11-26 | Preparation method of trailing arm assembly of rear torsion beam suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114130960A CN114130960A (en) | 2022-03-04 |
| CN114130960B true CN114130960B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111422675.1A Active CN114130960B (en) | 2021-11-26 | 2021-11-26 | Preparation method of trailing arm assembly of rear torsion beam suspension |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016107326A (en) * | 2014-12-10 | 2016-06-20 | マツダ株式会社 | Structure of mold for casting long casts and manufacturing method for the same |
| CN105964918A (en) * | 2016-06-28 | 2016-09-28 | 湖北星源科技有限公司 | Evanescent mode casting technology method for lightweight balance shaft beam |
| CN208558934U (en) * | 2018-07-27 | 2019-03-01 | 四川建安工业有限责任公司 | Upper reinforcement structure for rear torsion beam suspension |
| CN212042550U (en) * | 2020-03-16 | 2020-12-01 | 韶关金宝铸造有限公司 | Automobile suspension pouring system without riser |
| CN113414353A (en) * | 2021-06-08 | 2021-09-21 | 安庆中船柴油机有限公司 | Casting device for workpiece casting |
-
2021
- 2021-11-26 CN CN202111422675.1A patent/CN114130960B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016107326A (en) * | 2014-12-10 | 2016-06-20 | マツダ株式会社 | Structure of mold for casting long casts and manufacturing method for the same |
| CN105964918A (en) * | 2016-06-28 | 2016-09-28 | 湖北星源科技有限公司 | Evanescent mode casting technology method for lightweight balance shaft beam |
| CN208558934U (en) * | 2018-07-27 | 2019-03-01 | 四川建安工业有限责任公司 | Upper reinforcement structure for rear torsion beam suspension |
| CN212042550U (en) * | 2020-03-16 | 2020-12-01 | 韶关金宝铸造有限公司 | Automobile suspension pouring system without riser |
| CN113414353A (en) * | 2021-06-08 | 2021-09-21 | 安庆中船柴油机有限公司 | Casting device for workpiece casting |
Non-Patent Citations (1)
| Title |
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| CN114130960A (en) | 2022-03-04 |
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