CN113580863A - Shock absorber mounting structure and vehicle - Google Patents
Shock absorber mounting structure and vehicle Download PDFInfo
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- CN113580863A CN113580863A CN202110964117.1A CN202110964117A CN113580863A CN 113580863 A CN113580863 A CN 113580863A CN 202110964117 A CN202110964117 A CN 202110964117A CN 113580863 A CN113580863 A CN 113580863A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
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Abstract
The invention relates to a shock absorber mounting structure and a vehicle. The shock absorber mounting structure comprises a mounting plate, a connecting piece and a reinforcing piece, wherein a boss is formed on the mounting plate; one end of the connecting piece penetrates through the boss on the mounting plate to be connected with the shock absorber, the other end of the connecting piece is connected with the reinforcing piece, the mounting contact surface of the mounting plate and the shock absorber is reduced by forming the boss on the mounting plate, and an energy absorption space is formed on the inner side of the boss, so that the strength of the mounting plate is improved; the reinforcement is also connected to the rear wheel cover. The invention also provides a vehicle comprising the shock absorber mounting structure. The invention solves the problems that the strength of the existing automobile shock absorber mounting seat is not enough, so that the mounting seat is easily damaged by the reaction force of the shock absorber, the mounting structure is invalid, the comfort of passengers is reduced, and the service life of a vehicle is shortened.
Description
Technical Field
The invention relates to the technical field of automobile shock absorption, in particular to a shock absorber mounting structure and a vehicle.
Background
The automobile shock absorber is mainly used for inhibiting the shock when the spring absorbs the shock and rebounds and the impact from the road surface. Among them, the rear shock absorber is generally disposed on the rear wheel house through the rear shock absorber seat, and since the rear wheel house itself is a thin plate and has a weak rigidity, in order to ensure the connection rigidity, a reinforcing plate having a relatively thick thickness is often required as a structural reinforcement member to connect the rear shock absorber seat to the rear wheel house.
CN 208053018U discloses a reinforcing structure of a rear shock absorber mounting seat, which comprises a mounting seat body and a reinforcing member; the mounting seat body comprises a bottom plate, one side of the bottom plate is provided with a lower overlapping edge bent downwards, the other sides of the bottom plate are provided with upward side walls, a semi-surrounding structure is formed on the periphery of the bottom plate, the side walls are provided with upper overlapping edges, and the bottom plate is provided with a rear shock absorber mounting hole; the reinforcing part comprises a side plate and a supporting plate, the side plate is arranged in the semi-surrounding structure and is welded with the side wall in an attaching mode, the supporting plate is connected to the left side and the right side of the side plate respectively, and the lower portion of the supporting plate is fixedly connected with the bottom plate. The rear shock absorber mounting seat can improve the bearing and force transmission performance of the rear shock absorber mounting seat and improve the assembly precision of the rear shock absorber. However, the bottom plate of the reinforcing structure of the mounting seat is only connected with the rear wheel cover, and the mounting position is a plane, so that the mounting seat is easy to be influenced by the reaction force of the shock absorber, the mounting seat is damaged, and the vehicle body is subjected to larger reciprocating torque, so that the mounting structure is invalid, the vehicle body is deformed, the comfort of passengers is reduced, and the service life of the vehicle is shortened.
Disclosure of Invention
The invention aims to provide a shock absorber mounting structure and a vehicle, and aims to solve the problems that the strength of an existing vehicle shock absorber mounting seat is not enough, so that the mounting seat is easily subjected to the reaction force of a shock absorber, the mounting seat is damaged, the mounting structure is invalid, the comfort of passengers is reduced, and the service life of the vehicle is shortened.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a shock absorber mounting structure comprises a mounting plate, a connecting piece and a reinforcing piece, wherein a boss is formed on the mounting plate;
one end of the connecting piece penetrates through the boss on the mounting plate to be connected with the shock absorber, the other end of the connecting piece is connected with the reinforcing piece, the mounting contact surface of the mounting plate and the shock absorber is reduced by forming the boss on the mounting plate, and an energy absorption space is formed on the inner side of the boss, so that the strength of the mounting plate is improved;
the reinforcement is also connected to the rear wheel cover.
Preferably, the connecting piece is an installation sleeve which is of a reducing structure, wherein one end connected with the boss is a small-diameter section, and the other end connected with the reinforcing piece is a large-diameter section.
Preferably, the boss is provided with a mounting hole, the diameter of the mounting hole is larger than the outer diameter of the small-diameter section of the mounting sleeve and smaller than the outer diameter of the large-diameter section of the mounting sleeve, so that the small-diameter section of the mounting sleeve passes through the mounting hole and is in threaded connection with the shock absorber, and meanwhile, the large-diameter section of the mounting sleeve serves as a support, so that an energy absorption space is formed between the mounting plate and the reinforcing piece.
Preferably, two bosses are oppositely formed on the mounting plate, and the height of each boss is 20mm compared with that of the boss of the mounting plate.
Preferably, the reinforcing piece is a reinforcing plate, a through hole for the large-diameter section of the mounting sleeve to penetrate is formed in the reinforcing plate, a closed cavity is formed in one surface of the reinforcing plate and the mounting plate, one part of the other surface of the reinforcing plate is fixedly attached to the rear wheel cover, and the rest part of the other surface of the reinforcing plate is fixedly attached to the longitudinal beam.
Preferably, the reinforcing plate is further formed with a reinforcing rib, and the reinforcing rib has a length of 18mm and a width of 75 mm.
Preferably, the thickness of the reinforcing ribs is different from top to bottom.
Preferably, the reinforcing bar comprises an upper contact section R1, a middle support section R2 and a lower contact section R3 from top to bottom; the thickness of the upper contact section R1 is 40mm, the thickness of the middle support section R2 is 80mm, and the thickness of the lower contact end R3 is 20 mm.
The invention also provides a vehicle comprising the shock absorber mounting structure.
The invention has the beneficial effects that:
1) according to the shock absorber mounting structure, the boss for mounting the shock absorber is formed on the mounting plate, so that the mounting contact surface between the shock absorber and the mounting plate is reduced, the mounting point position is closer to the supporting point position, and the energy absorption space is formed on the inner side of the boss, so that the strength of the mounting plate is improved, and the damage of the reaction force of the shock absorber to the mounting seat is avoided. The shock absorber mounting seat solves the problems that the existing shock absorber mounting seat is easy to be damaged by the reaction force of a shock absorber due to insufficient strength, so that the mounting structure is invalid, the comfort of passengers is reduced, and the service life of a vehicle is shortened;
2) the mounting sleeve is of a reducing structure, so that the small-diameter section passes through the mounting hole to be connected with the shock absorber, and the large-diameter section is used as a support, so that the mounting sleeve can be used as a support while realizing connection and guidance, the effectiveness of an energy absorption space formed between the mounting plate and the reinforcement is further ensured, the reaction force generated by the shock absorber is further absorbed, the vibration transmitted to a vehicle body is reduced, the riding comfort is improved, and the service life of the vehicle is prolonged;
3) through establishing the strengthening rib into the unequal structure of thickness, avoided taking place to interfere with spare part on every side, simultaneously, guaranteed the Y of reinforcement to dynamic stiffness, improved whole bumper shock absorber mounting structure's intensity and the travelling comfort of taking, in automobile shock attenuation technical field, have popularization practical value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection of the mounting plate to the reinforcing member;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a schematic structural view of the attachment of the mounting plate, the reinforcement member and the rear wheel cover;
FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;
FIG. 6 is a graph of damper attachment point-dynamic stiffness response.
Wherein, 1-mounting plate, 101-boss; 2-connecting piece, 201-small diameter section, 202-large diameter section; 3-reinforcing piece, 301-through hole, 302-reinforcing rib; 4-a shock absorber; 5-rear wheel cover; 6-longitudinal beam.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure herein, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings and preferred embodiments. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
As shown in fig. 1 to 5, a shock absorber mounting structure includes a mounting plate 1, a connecting member 2 and a reinforcing member 3, the mounting plate 1 having a boss 101 formed thereon;
one end of the connecting piece 2 passes through the boss 101 on the mounting plate 1 to be connected with the shock absorber 4, the other end of the connecting piece is connected with the reinforcing piece 3, the mounting contact surface of the mounting plate 1 and the shock absorber 4 is reduced by forming the boss 101 on the mounting plate 1, and an energy absorption space is formed inside the boss 101, so that the strength of the mounting plate 1 is improved;
the reinforcement 3 is also connected to the rear wheel house 5.
Through forming the boss that is used for installing the bumper shock absorber on the mounting panel, reduced the installation contact surface between bumper shock absorber and the mounting panel for the mounting point position is closer to the support point position, and the boss inboard forms the energy-absorbing space, thereby has improved the intensity of mounting panel, has avoided the harm that the reaction force of bumper shock absorber caused the mount pad. The problem of current bumper shock absorber mount pad because of intensity is not enough for the installation easily receives the reaction force of bumper shock absorber, causes the harm to the mount pad, thereby leads to mounting structure to become invalid, has reduced passenger's travelling comfort and has shortened the life of vehicle is solved.
The mounting structure in this embodiment is suitable for mounting of a rear shock absorber of a dependent suspension.
The connecting piece 2 is an installation sleeve which is of a reducing structure, wherein one end connected with the boss 101 is a small-diameter section 201, and one end connected with the reinforcing piece 3 is a large-diameter section 202.
In this embodiment, the installation sleeve pipe is diameter-changing structure, and the diameter of major diameter section is greater than the diameter of minor diameter section, and the axial length of major diameter section is greater than the axial length of minor diameter section.
The boss 101 is provided with a mounting hole 102, the diameter of the mounting hole 102 is larger than the outer diameter of the small-diameter section 201 of the mounting sleeve and smaller than the outer diameter of the large-diameter section 202 of the mounting sleeve, so that the small-diameter section 201 of the mounting sleeve penetrates through the mounting hole 102 and is screwed with the shock absorber 4, and meanwhile, the large-diameter section 202 of the mounting sleeve serves as a support, so that an energy absorption space is formed between the mounting plate 1 and the reinforcing piece 3.
Through establishing the installation sleeve pipe into reducing structure, make the path section pass the mounting hole and link to each other with the bumper shock absorber, and regard as the support with big footpath section, when making the installation sleeve pipe realize connecting and direction, can also regard as the support, further guaranteed to form the validity in energy-absorbing space between mounting panel and the reinforcement, with the reaction force that further absorption bumper shock absorber produced, reduced the vibration that transmits on the automobile body, improved the travelling comfort of taking and prolonged the life of vehicle.
In this embodiment, the small diameter section of the installation sleeve is formed with an internal thread hole, and the shock absorber is provided with an assembly hole, and the assembly hole and the internal thread hole are connected together through a bolt. The mounting surface of the mounting hole arranged on the shock absorber is equal to the upper plane of the boss in size. The mounting plate and the reinforcing piece are used as supports through the large-diameter section of the mounting sleeve, and two weld joints are welded on the contact periphery of the mounting plate and the reinforcing piece, so that a further sealing energy-absorbing space is formed between the mounting plate and the reinforcing piece.
Two bosses 101 are oppositely formed on the mounting plate 1, and the height of the boss 101 is 20mm compared with the mounting plate 1.
The reinforcing part 3 is a reinforcing plate, a through hole 301 for the large-diameter section 202 of the mounting sleeve to penetrate through is formed in the reinforcing plate, a closed cavity is formed between one surface of the reinforcing plate and the mounting plate 1, one part of the other surface of the reinforcing plate is fixedly attached to the rear wheel cover 5, and the rest part of the reinforcing plate is fixedly attached to the longitudinal beam 6.
The reinforcing plate is attached and fixed with the rear wheel cover and the longitudinal beam, so that the reaction of the shock absorber is effectively dispersed, and the strength and the rigidity of the shock absorber mounting structure are improved.
The reinforcing plate is also formed with ribs 302, the ribs 302 having a length of 18mm and a width of 75 mm.
The ribs 302 are of unequal thickness from top to bottom. The reinforcing ribs and the reinforcing plate are integrally formed.
The reinforcing rib 302 comprises an upper contact section R1, a middle support section R2 and a lower contact section R3 from top to bottom; the thickness of the upper contact section R1 is 40mm, the thickness of the middle support section R2 is 80mm, and the thickness of the lower contact end R3 is 20 mm.
Through changing the thickness of strengthening rib, guaranteed the Y of reinforcement to dynamic stiffness, improved whole mounting structure's intensity.
In the existing rear shock absorber mounting structure, reinforcing ribs arranged on a reinforcing piece are generally of an equal-thickness structure, the defect that the forming process is difficult exists, the thickness is about 30mm, and in the running process of a vehicle, the position of a lower contact section is often interfered with surrounding parts, so that abnormal sound is generated, and the riding comfort is influenced.
Through CAE simulation analysis, the influence of reinforcing rib thickness on the reinforcement to whole car Y to the rigidity intensity, wherein, carry out simulation analysis to current bumper shock absorber mounting structure, the reinforcing rib that sets up on the reinforcement is the uniform thickness promptly, and when thickness was about 30mm, and the Y that obtains after CAE analysis moves the rigidity value about 6000 (N/mm).
In this embodiment, two reinforcing ribs are provided on the reinforcing plate, and CAE simulation analysis is performed on the thickness of the reinforcing rib on the right side.
Through CAE simulation analysis, the shock absorber mounting structure in the embodiment reduces the thickness of the lower contact section R3, increases the thicknesses of the upper contact section R1 and the middle support section R2, and influences the Y-direction rigidity of the whole vehicle. The CAE simulation analysis method comprises the specific process that after a designed shock absorber mounting structure is assembled, in an automotive interior body, a bushing mounting point of a shock absorber is used as an excitation point and a response point (the excitation point and the response point are the same as those of an existing shock absorber mounting structure and an actual vehicle test point), the same loading force (the same as that of the existing shock absorber mounting structure) is provided, acceleration responses under different frequencies are solved, the acceleration is inverted to obtain displacement under the frequency, and the ratio of the displacement to the loading force is a dynamic stiffness value. The results are shown in FIG. 6.
In fig. 6, the abscissa represents frequency, and the ordinate represents dynamic stiffness. As can be seen from the analysis in fig. 6, when the thickness of the upper contact section R1 is 40mm, the thickness of the middle support section R2 is 50mm, and the thickness of the lower contact end R3 is 30mm, as shown by the solid line in fig. 6, the Y-direction stiffness of the entire vehicle body is about 7170(N/mm), and when the thickness of the upper contact section R1 is 40mm, the thickness of the middle support section R2 is 80mm, and the thickness of the lower contact end R3 is 20mm, as shown by the dotted line in fig. 6, the Y-direction stiffness of the entire vehicle body is about 9200(N/mm), which significantly improves the stiffness of the entire vehicle, and reduces the thickness of the lower contact section, thereby avoiding interference with surrounding components, and improving the riding comfort.
The shock absorber mounting structure in the embodiment is suitable for mounting a rear shock absorber, in the actual mounting process, one end with a small diameter of the mounting sleeve is directly inserted into a mounting hole in the middle of a boss of the mounting plate, the end face of the small-diameter section of the mounting sleeve is welded on the boss of the mounting plate through two weld joints, and the edge of the contact surface of the mounting sleeve and the mounting plate is firmly welded through the two weld joints; then fixing the welded assembly and the reinforcing piece together through a clamp, inserting the large-diameter section of the mounting sleeve into a through hole in the middle of the mounting plate reinforcing piece, wherein the diameter of the through hole in the middle of the reinforcing piece is 4mm larger than that of the large-diameter section of the mounting sleeve, the peripheral gap is about 2mm, filling the peripheral gap through two-layer welding, and simultaneously playing a role in connection and sealing, wherein the mounting plate is connected with the connecting piece in a spot welding manner; forming an installation plate assembly by the three parts, and fixing the installation plate assembly with a rear wheel cover through a clamp, wherein a reinforcing plate of the installation assembly is in surface contact with the rear wheel cover, and spot welding and fixing the surface contact area to firmly connect the installation assembly with the rear wheel cover; fixing the welded assembly with a rear floor longitudinal beam through a fixture, connecting the contact surface of a rear wheel cover and the rear floor longitudinal beam through spot welding, and connecting the contact area of a mounting plate assembly and the floor longitudinal beam 4 through two shielded weldings and firmly welding (the concrete operation is that the edges of two sides of the lower end of a reinforcing rib on a reinforcing piece are connected with the rear floor longitudinal beam through the two shielded weldings, a plug welding hole is formed in the middle surface of the lower end of the reinforcing rib, and the hole is fully connected through the two shielded weldings); and finally, assembling the shock absorber with the two bulges of the mounting plate.
The embodiment also provides a vehicle including the shock absorber mounting structure in the embodiment.
According to the shock absorber mounting structure and the vehicle provided by the invention, firstly, the boss for mounting the shock absorber is formed on the mounting plate, so that the mounting contact surface between the shock absorber and the mounting plate is reduced, the mounting point position is closer to the supporting point position, and the energy absorption space is formed on the inner side of the boss, so that the strength of the mounting plate is improved, and the damage of the reaction force of the shock absorber to the mounting seat is avoided. The shock absorber mounting seat solves the problems that the existing shock absorber mounting seat is easy to be damaged by the reaction force of a shock absorber due to insufficient strength, so that the mounting structure is invalid, the comfort of passengers is reduced, and the service life of a vehicle is shortened; secondly, the mounting sleeve is of a reducing structure, the small-diameter section penetrates through the mounting hole to be connected with the shock absorber, and the large-diameter section is used as a support, so that the mounting sleeve can be used as a support while realizing connection and guidance, the effectiveness of an energy absorption space formed between the mounting plate and the reinforcing piece is further ensured, the reaction force generated by the shock absorber is further absorbed, the vibration transmitted to a vehicle body is reduced, the riding comfort is improved, and the service life of the vehicle is prolonged; finally, the reinforcing ribs are designed into structures with different thicknesses, interference with surrounding parts is avoided, Y-direction dynamic stiffness of the reinforcing part is guaranteed, strength of the whole mounting structure and riding comfort are improved, and the automobile shock absorption device has popularization and practical values in the technical field of automobile shock absorption.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention.
Claims (9)
1. The shock absorber mounting structure is characterized by comprising a mounting plate (1), a connecting piece (2) and a reinforcing piece (3), wherein a boss (101) is formed on the mounting plate (1);
one end of the connecting piece (2) penetrates through the boss (101) on the mounting plate (1) to be connected with the shock absorber (4), the other end of the connecting piece is connected with the reinforcing piece (3), the mounting contact surface of the mounting plate (1) and the shock absorber (4) is reduced by forming the boss (101) on the mounting plate (1), and an energy absorption space is formed on the inner side of the boss (101), so that the strength of the mounting plate (1) is improved;
the reinforcing piece (3) is also connected with a rear wheel cover (5).
2. The shock absorber mounting structure according to claim 1, wherein the connecting member (2) is a mounting sleeve having a diameter-variable structure in which the end connected to the boss (101) is a small-diameter section (201) and the end connected to the reinforcing member (3) is a large-diameter section (202).
3. The shock absorber mounting structure according to claim 2, wherein the boss (101) is provided with a mounting hole (102), the diameter of the mounting hole (102) is larger than the outer diameter of the small diameter section (201) of the mounting sleeve and smaller than the outer diameter of the large diameter section (202) of the mounting sleeve, so that the small diameter section (201) of the mounting sleeve passes through the mounting hole (102) and is screwed with the shock absorber (4), and meanwhile, the large diameter section (202) of the mounting sleeve serves as a support, so that an energy absorbing space is formed between the mounting plate (1) and the reinforcing member (3).
4. The damper mounting structure according to claim 3, wherein two bosses (101) are formed oppositely on the mounting plate (1), and the height of the boss (101) is 20mm compared with the height of the boss (1).
5. The shock absorber mounting structure according to claim 2, wherein the reinforcing member (3) is a reinforcing plate, a through hole (301) for passing the large diameter section (202) of the mounting sleeve is formed in the reinforcing plate, one surface of the reinforcing plate forms a closed cavity with the mounting plate (1), a part of the other surface is fixedly attached to the rear wheel cover (5), and the rest part is fixedly attached to the longitudinal beam (6).
6. The damper mounting structure according to claim 5, wherein a reinforcing rib (302) is further formed on the reinforcing plate, and the reinforcing rib (302) has a length of 18mm and a width of 75 mm.
7. The damper mounting structure according to claim 6, wherein the reinforcing ribs (302) are different in thickness from top to bottom.
8. The shock absorber mounting structure according to claim 7, wherein the reinforcing bead (302) includes, in order from top to bottom, an upper contact section R1, an intermediate support section R2 and a lower contact section R3; the thickness of the upper contact section R1 is 40mm, the thickness of the middle support section R2 is 80mm, and the thickness of the lower contact end R3 is 20 mm.
9. A vehicle characterized by comprising the shock absorber mounting structure according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964117.1A CN113580863A (en) | 2021-08-21 | 2021-08-21 | Shock absorber mounting structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964117.1A CN113580863A (en) | 2021-08-21 | 2021-08-21 | Shock absorber mounting structure and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN113580863A true CN113580863A (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110964117.1A Pending CN113580863A (en) | 2021-08-21 | 2021-08-21 | Shock absorber mounting structure and vehicle |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209191629U (en) * | 2018-10-29 | 2019-08-02 | 长城汽车股份有限公司 | Rear shock absorber mounting structure and vehicle body and vehicle |
| CN211308171U (en) * | 2019-12-24 | 2020-08-21 | 上汽通用汽车有限公司 | Bumper shock absorber automobile body fixed knot constructs, bumper shock absorber subassembly and vehicle |
-
2021
- 2021-08-21 CN CN202110964117.1A patent/CN113580863A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209191629U (en) * | 2018-10-29 | 2019-08-02 | 长城汽车股份有限公司 | Rear shock absorber mounting structure and vehicle body and vehicle |
| CN211308171U (en) * | 2019-12-24 | 2020-08-21 | 上汽通用汽车有限公司 | Bumper shock absorber automobile body fixed knot constructs, bumper shock absorber subassembly and vehicle |
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