CN113525001A - Connecting mechanism for control arm and auxiliary frame - Google Patents
Connecting mechanism for control arm and auxiliary frame Download PDFInfo
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- CN113525001A CN113525001A CN202110874979.5A CN202110874979A CN113525001A CN 113525001 A CN113525001 A CN 113525001A CN 202110874979 A CN202110874979 A CN 202110874979A CN 113525001 A CN113525001 A CN 113525001A
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- Prior art keywords
- control arm
- waist
- shaped hole
- opening part
- stress rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/008—Attaching arms to unsprung part of vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/04—Buffer means for limiting movement of arms
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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
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a connecting mechanism of a control arm and an auxiliary frame, which comprises a gear opening structure, a control arm bushing and a stress rod; the opening structure is arranged on the auxiliary frame and comprises a pair of opening part plates; the opening structure is provided with a pair of waist-shaped holes which are opposite in mirror image, and the waist-shaped holes are respectively positioned on the two opening part plates; the control arm bushing is arranged at the front end of the control arm and is arranged between the two opening part plates; the stress rod penetrates through the control arm bushing, two ends of the stress rod are connected in the waist-shaped hole, and when a vehicle is biased and collided, the stress rod moves along the extension direction of the waist-shaped hole. The anti-skidding axial limiting piece is arranged on the outer side face of the waist-shaped hole, and the anti-skidding surface of the anti-skidding axial limiting piece is tightly attached to the outer side face of the opening part plate, so that the friction force of the stress rod in the extending direction of the waist-shaped hole is improved. When a vehicle is subjected to offset collision, the stress rod slides along the extension direction of the waist-shaped hole in a friction mode, collision energy can be absorbed and buffered, the problem that the wheel edge part is completely out of control due to the fact that the control arm is directly separated from the auxiliary frame is avoided, and the passive safety of collision is improved.
Description
Technical Field
The invention relates to the field of connection of automobile chassis, in particular to a connecting mechanism of a control arm and an auxiliary frame.
Background
The subframe can be regarded as a framework of the front axle and the rear axle, and is a component of the front axle and the rear axle. The function of the auxiliary frame is to isolate vibration and noise and prevent the auxiliary frame from directly entering the carriage. Besides various convenience and advantages in design and installation, the suspension assembly with the auxiliary frame is most important to improve the comfort and the suspension rigidity. Some spare parts of the suspension are assembled on the auxiliary frame to form assembly parts which are then connected with the vehicle body and the like, so that convenience is brought to assembly. The control arm of the suspension is typically connected to the subframe through a control arm bushing at the front end of the control arm.
At present, the connection of control arm bush and sub vehicle frame mainly is the structure of opening a grade that sub vehicle frame support formed, through the bolt with the structure of opening a grade of support and the locking laminating of bush inner frame, form and be connected. The connection part of the control arm and the auxiliary frame is used as a key interface in the suspension system, and in the using process, the connection reliability needs to be ensured under the condition of bearing all directions of force and moment, and the moment attenuation and looseness exceeding the standard are not allowed to occur. As shown in fig. 1, in the prior art, a control arm and a subframe are generally hinged by using a bolt and nut connection mode, a circular bolt hole is formed in the subframe to be in clearance fit with a bolt, the connection mode can meet the basic requirement of ensuring connection reliability, but the clearance between the bolt hole and the bolt is small, when a vehicle is in offset collision, collision energy cannot be absorbed and buffered between the bolt hole and the bolt, and a key part of the control arm connected with the subframe is easy to directly separate, so that the wheel side part is completely out of control, and the passive safety of collision is affected.
Disclosure of Invention
The invention provides a connecting mechanism for a control arm and an auxiliary frame, which aims to solve the problem that the control arm and the auxiliary frame are easy to separate because the connecting mechanism cannot absorb and buffer collision energy when a vehicle has offset collision in the prior art.
The technical scheme provided by the invention is as follows:
in a first aspect, the present invention provides a control arm and subframe connection mechanism, comprising:
the gear opening structure is arranged on the auxiliary frame and comprises a pair of gear opening part plates; the opening structure is provided with a pair of waist-shaped holes which are opposite in mirror image, and the waist-shaped holes are respectively positioned on the two opening part plates;
the control arm bushing is arranged at the front end of the control arm and is arranged between the two opening part plates; and
and the stress rod penetrates through the control arm bushing, two ends of the stress rod are connected in the waist-shaped hole, and when a vehicle is subjected to offset collision, the stress rod moves along the extending direction of the waist-shaped hole.
By adopting the technical scheme, the control arm bushing is arranged in the opening structure on the auxiliary frame through the stress rod, and the pair of waist-shaped holes with opposite mirror images are formed in the two opposite opening part plates of the opening structure, so that when a vehicle is subjected to offset collision, the stress rod can move along the extension direction of the waist-shaped holes to absorb and buffer collision energy, the condition that the wheel edge part is completely out of control due to the fact that the key part for connecting the control arm and the auxiliary frame is directly separated is avoided, and the safety of the whole vehicle is improved.
Furthermore, the other embodiment of the invention discloses a connecting mechanism of a control arm and an auxiliary frame, wherein two ends of the stress rod penetrate through the waist-shaped hole, and two ends of the stress rod are respectively provided with an axial limiting mechanism.
By adopting the technical scheme, the stress rod penetrates out of the two ends of the waist-shaped hole, and the axial limiting mechanisms can be arranged at the two ends of the waist-shaped hole, so that the stress rod is prevented from axially displacing along the stress rod.
Furthermore, the invention discloses a connecting mechanism of the control arm and the auxiliary frame, wherein the axial limiting mechanism at least comprises a pair of elastic anti-skidding axial limiting pieces, and anti-skidding surfaces of the elastic anti-skidding axial limiting pieces are tightly attached to the outer side surfaces of the opening part plates.
By adopting the technical scheme, the elastic anti-slip axial limiting piece not only plays an axial limiting role for the stress rod, prevents the stress rod from axially displacing along the stress rod, but also can increase the friction stress area on the surface of the outer side of the opening part plate, and plays the roles of increasing the friction force, improving the buffering capacity and clearing up the collision energy.
Furthermore, the invention discloses a connecting mechanism of the control arm and the auxiliary frame, wherein the stress rod is a bolt.
By adopting the technical scheme, the bolt rod part penetrates through the control arm bushing, and the bolt head part and the nut which are positioned on two sides of the opening structure play a role in axially limiting the bolt rod part.
Further, the invention discloses a connecting mechanism of the control arm and the auxiliary frame, wherein the inner layer of the elastic anti-skid axial limiting sheet is a metal sheet, and rubber layers are arranged on two sides of the metal sheet.
Adopt above-mentioned technical scheme, the metal rubber material inlayer is sheetmetal, the sheetmetal both sides skin is the elastic rubber layer of antifriction, and the sheetmetal makes the metal rubber material have certain rigidity, has enough axial limiting displacement to the atress pole, and the elastic rubber layer has the effect of slowing down the impact force, improving friction power, can avoid the atress pole too big to waist type hole impact force, causes the atress pole fracture, or waist type hole is out of shape.
Further, another embodiment of the invention discloses a connecting mechanism of a control arm and an auxiliary frame, wherein the waist-shaped hole is a long circular hole or a long circular arc-shaped hole; the opening part plate is horizontally or vertically arranged.
By adopting the technical scheme, the opening part plate is horizontally or vertically arranged according to the type of the control arm bushing at the front end of the control arm; the waist-shaped hole is a long circular hole or a long arc-shaped hole, and the long waist line ensures that the stress rod has enough buffer distance to weaken the impact force of the stress rod on the waist-shaped hole.
Furthermore, the invention discloses a connecting mechanism of the control arm and the auxiliary frame, wherein the kidney-shaped hole is a long circular hole; when the opening part plate is horizontally arranged, the waist-shaped hole extends along the push-pull force direction of the control arm; when the opening part plate is vertically arranged, the included angle between the long axis of the waist-shaped hole and the horizontal plane is-45 degrees.
Further, another embodiment of the invention discloses a connecting mechanism of a control arm and an auxiliary frame, wherein when the opening part plate is vertically arranged, the included angle between the long axis of the waist-shaped hole and the horizontal plane is-30 degrees.
Furthermore, another embodiment of the invention discloses a connecting mechanism of the control arm and the auxiliary frame, wherein the included angle between the long axis of the waist-shaped hole and the horizontal plane is-15 degrees.
Furthermore, another embodiment of the invention discloses a connecting mechanism of the control arm and the auxiliary frame, wherein the included angle between the long axis of the waist-shaped hole and the horizontal plane is-5 degrees.
By adopting the technical scheme, when the opening part plate is horizontally arranged, the waist-shaped hole extends along the push-pull force direction of the control arm, so that enough buffer distance is provided to weaken the impact force of the stress rod on the waist-shaped hole; when the opening part plate is vertically arranged, when a vehicle is subjected to offset collision, the stress rod can slide along the horizontal waist-shaped hole in a friction mode, and can also slide along the waist-shaped hole in an inclined mode or in an inclined mode, and the impact force of the stress rod on the waist-shaped hole is further weakened.
In a second aspect, the present invention provides a subframe provided with the above-mentioned control arm and subframe connection mechanism, the control arm and subframe connection mechanism including:
the gear opening structure is arranged on the auxiliary frame and comprises a pair of gear opening part plates; the opening structure is provided with a pair of waist-shaped holes with coaxiality, and the waist-shaped holes are respectively positioned on the two opening part plates;
a control arm bushing provided at a front end of the control arm and mountable between the pair of opening part plates; and
and the stress rod penetrates through the control arm bushing, two ends of the stress rod are fixed in the waist-shaped hole, and when a vehicle is biased and collided, the stress rod moves along the long axis direction of the waist-shaped hole.
Additional features and corresponding advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a prior art control arm to subframe connection;
fig. 2 is an exploded schematic view of a connection mechanism between a control arm and a subframe according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of an oblong hole of the present invention;
FIG. 4 is a schematic view of an oblong aperture of the present invention;
fig. 5 is a front view of the control arm and sub-frame connecting mechanism provided in embodiment 1 of the present invention after assembly;
fig. 6 is a top view of the control arm and subframe connection mechanism provided in embodiment 1 of the present invention after assembly;
wherein, 1, opening the structure; 11. opening a gear part plate; 111. a kidney-shaped hole; 2. a control arm bushing; 3. a stress beam; 4. an elastic anti-slip axial limiting sheet; 5. a nut; 6. an auxiliary frame; 7. and controlling the arm.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The control arm of the present invention is as follows.
The control arm is also called as swing arm, and can be divided into a transverse stabilizer bar connecting rod, a transverse pull rod, a longitudinal pull rod, a single control arm, a fork arm and a triangular arm according to different structures. The connecting mechanism of the control arm and the auxiliary frame is particularly suitable for connecting the fork arm and the auxiliary frame.
The subframe of the present invention is as follows.
The subframe of the present invention may be selected from a full-frame subframe, a "shoe-shaped" subframe, a multi-link subframe, and a torsion subframe, and preferably is a full-frame subframe.
The opening structure of the present invention is as follows.
The opening structure of the invention refers to a structure which can contain the clearance of the control arm bush, and can be a groove opened on the auxiliary frame body or a bracket installed on the auxiliary frame body. In the present invention, the bracket is preferably mounted on the subframe body, and the bracket may be fixed by a fastener or welded to the subframe body. In order to avoid the axial displacement of the control arm bushing along the control arm bushing and ensure that the control arm bushing can rotate, the gap of the open structure in the axial direction of the control arm bushing is required to be larger than the axial width of the control arm bushing, and the allowance is not more than 2-5 mm; in order to ensure that the control arm bushing can move along the kidney-shaped hole, the opening structure of the invention also has a certain depth.
The opening parts plate of the present invention is as follows.
It should be understood that the opening plate of the present invention is not limited to a standard plate-like structure, but may be a side wall of a groove formed in the subframe body, or an irregularly shaped bracket mounted on the subframe body. Preferably a standard plate-shaped structure, and ensures that the opposite surfaces of the two opening part plates are parallel.
The kidney shaped hole of the present invention is as follows.
The waist-shaped hole is a long circular hole or a long arc-shaped hole; as shown in fig. 3, the oblong hole refers to a hole with two parallel straight lines at the middle waist line; as shown in fig. 4, the long arc-shaped hole refers to a hole with a middle waist line being two parallel arcs. The length and the width of the middle waist line of the waist-shaped hole need to meet the following requirements, the waist-shaped hole plays a role in guiding and buffering the stress rod in the extending direction of the waist-shaped hole, and plays a role in limiting the stress rod in the width direction of the waist-shaped hole. In order to ensure that the stress rod can simultaneously pass through the two waist-shaped holes, the two waist-shaped holes are required to be opposite in mirror image and consistent in shape.
The control arm bushing of the present invention is as follows.
The control arm bushing is positioned at the front end of the control arm, is integrally formed with the control arm and is arranged on the control arm.
The force bar of the present invention is as follows.
The stress rod is a connecting piece of the control arm bushing and the opening structure, the length of the stress rod needs to meet the requirement that both ends of the stress rod can be connected in the kidney-shaped hole, the diameter of the stress rod is close to the width of the kidney-shaped hole, and the stress rod can rotate around the stress rod.
The axial stop mechanism of the present invention is as follows.
The axial limiting mechanism is a mechanism which is arranged at two ends of the stress rod and axially limits the stress rod, and when the stress rod is a bolt rod, the axial limiting mechanism comprises a bolt head and a nut, and can also comprise a gasket which plays a role in axial limiting.
The elastic anti-slip axial stopper of the present invention is as follows.
The metal rubber material inner layer is a metal sheet, the outer layers of the two sides of the metal sheet are elastic rubber layers resistant to friction, the metal sheet enables the metal rubber material to have certain rigidity and plays a role in axial limiting, and the elastic rubber layers improve friction force and absorb collision energy on the one hand.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In a first aspect, the present invention provides a control arm and subframe connection mechanism, comprising:
the gear opening structure 1 is arranged on the auxiliary frame 6, and the gear opening structure 1 comprises a pair of opposite gear opening part plates 11; the opening structure 1 is provided with a pair of waist-shaped holes 111 opposite in mirror image, and the waist-shaped holes 111 are respectively positioned on the two opening part plates 11;
a control arm bushing 2 which is arranged at the front end of the control arm 7 and is installed between the two opening part plates 11; and
and a force-receiving rod 3 penetrating the control arm bushing 2 and having both ends connected to the inside of the kidney-shaped hole 111, wherein the force-receiving rod 3 moves in the extending direction of the kidney-shaped hole 111 when a vehicle is offset and collided.
By adopting the technical scheme, the pair of waist-shaped holes 111 arranged on the opening structure 1 on the auxiliary frame 6 can ensure that the stress rod 3 moves along the long axis direction of the waist-shaped holes 111 to absorb and buffer collision energy when a vehicle is subjected to offset collision, so that the condition that the wheel edge part is completely out of control due to the fact that the key part connected with the control arm 7 and the auxiliary frame 6 is directly separated is avoided, and the safety of the whole vehicle is improved.
Further, the other embodiment of the invention discloses a connecting mechanism of a control arm and an auxiliary frame, wherein two ends of the stress rod 3 penetrate through the waist-shaped hole 111, and two ends are respectively provided with an axial limiting mechanism.
By adopting the technical scheme, the stress rod 3 is guided to the direction opposite to the stress in the extending direction of the long shaft of the waist-shaped hole 111, and the stress rod 3 is prevented from rigidly colliding with the bolt hole.
Further, another embodiment of the invention discloses a connecting mechanism of a control arm and an auxiliary frame, wherein the axial limiting mechanism at least comprises a pair of elastic anti-skidding axial limiting pieces 4, and anti-skidding surfaces of the elastic anti-skidding axial limiting pieces 4 are tightly attached to the outer side surfaces of the opening part plates 11.
By adopting the technical scheme, the elastic anti-skidding axial limiting piece 4 not only plays an axial limiting role for the stress rod 3, but also increases the stress area of the outer side surface of the opening part plate 11 and plays a role in increasing the friction force of the stress rod 3.
Further, the invention discloses a connecting mechanism of the control arm and the auxiliary frame, and the stress rod 3 is a bolt.
By adopting the technical scheme, the control arm bushing 2 is fixed between the two shifting part plates after the bolt is screwed down, and the control arm 7 can be twisted around the bolt and can slide to the shifting root along the waist-shaped hole 111.
Further, the invention discloses a connecting mechanism of the control arm and the auxiliary frame, wherein the inner layer of the elastic anti-skid axial limiting sheet 4 is a metal sheet, and rubber layers are arranged on two sides of the metal sheet.
By adopting the technical scheme, the inner layer of the metal rubber material is the metal sheet, the outer layers of the two sides of the metal sheet are the elastic rubber layers with friction resistance, the metal sheet enables the metal rubber material to have certain rigidity and plays a role in axial limiting, and the elastic rubber layers improve the friction force and absorb the collision energy.
Further, another embodiment of the invention discloses a connecting mechanism of a control arm and an auxiliary frame, wherein the waist-shaped hole 111 is a long circular hole or a long circular arc-shaped hole; the opening part plate 11 is horizontally or vertically arranged.
By adopting the technical scheme, the opening part plate 11 can be horizontally or vertically arranged according to requirements, so that the control arm bushings 2 arranged in different directions can be conveniently installed on the auxiliary frame 6. The waist-shaped holes 111 are arranged along different directions according to the horizontal arrangement or the vertical arrangement of the opening part plate 11.
Further, another embodiment of the present invention discloses a connecting mechanism for a control arm and a subframe, wherein the kidney-shaped hole 111 is a long circular hole; when the opening part plate 11 is horizontally arranged, the waist-shaped hole 111 extends along the push-pull force direction of the control arm 7; when the opening part plate 11 is vertically arranged, the included angle between the long axis of the waist-shaped hole 111 and the horizontal plane is-45 degrees to 45 degrees.
By adopting the technical scheme, the opening part plate 11 can be horizontally or vertically arranged according to requirements, so that the control arm bushings 2 arranged in different directions can be conveniently installed on the auxiliary frame 6. The waist-shaped holes 111 are arranged along different directions according to the horizontal arrangement or the vertical arrangement of the opening part plate 11.
Further, another embodiment of the invention discloses a connecting mechanism of a control arm and an auxiliary frame, when the opening part plate 11 is vertically arranged, the included angle between the long axis of the waist-shaped hole 111 and the horizontal plane is-30 degrees to 30 degrees.
Furthermore, another embodiment of the invention discloses a connecting mechanism of the control arm and the auxiliary frame, and the included angle between the long axis of the waist-shaped hole 111 and the horizontal plane is-15 degrees.
Furthermore, another embodiment of the invention discloses a connecting mechanism of the control arm and the auxiliary frame, and the included angle between the long axis of the waist-shaped hole 111 and the horizontal plane is-5 degrees to 5 degrees.
By adopting the technical scheme, when the vehicle is subjected to offset collision, the stress rod 3 slides along the waist-shaped hole 111 which is obliquely upward or downward so as to buffer collision energy.
In a second aspect, the present invention provides a subframe 6 provided with the above-described control arm-subframe connection mechanism.
The technical solution of the present invention will be described below with reference to specific examples.
Example 1
The present embodiment provides a control arm and subframe connection mechanism, as shown in fig. 2 to 6, which includes a shift opening structure 1, a control arm bushing 2, and a force receiving rod 3. Specifically, the opening structure 1 is arranged on the auxiliary frame 6, and the opening structure 1 comprises a pair of opposite opening part plates 11; the opening structure 1 is provided with a pair of waist-shaped holes 111 opposite in mirror image, and the waist-shaped holes 111 are respectively positioned on the two opening part plates 11; the control arm bushing 2 is arranged at the front end of the control arm 7 and is arranged between the two opening part plates 11; the stress rod 3 penetrates through the control arm bushing 2, two ends of the stress rod are connected to the inside of the kidney-shaped hole 111, and when a vehicle is biased to collide, the stress rod 3 moves along the extending direction of the kidney-shaped hole 111.
According to the control arm and auxiliary frame connecting mechanism, the control arm bushing 2 is sleeved in the middle of the stress rod 3, and the two ends of the stress rod 3 are respectively connected in the two waist-shaped holes 111, so that the control arm bushing 2 is positioned in the opening structure 1. Open shelves part board 11 has restricted control arm bush 2 along 3 axial displacement of atress pole, open the kidney-shaped hole 111 that a pair of mirror image is relative that sets up on shelves part board 11, have the guide effect, and buffer space is provided, when the vehicle receives the offset collision, atress pole 3 slides along the extending direction in kidney-shaped hole 111, gliding frictional action has weakened the impact force of atress pole 3 to opening shelves part board 11, the risk that 3 fracture of atress pole or opening shelves part board 11 warp has been reduced, the key position direct separation that control arm 7 and sub vehicle frame 6 are connected has been avoided and has been caused the risk that the wheel limit part is completely out of control, the security of whole car has been improved.
More specifically, in this embodiment, the opening part plate 11 is an irregular-shaped support plate, two opposite surfaces of the opening part plate 11 are parallel planes, and the distance between the opposite surfaces is slightly larger than the axial width of the control arm bushing 2, so as to facilitate assembling the control arm bushing 2 and limit the axial displacement of the control arm bushing 2 along itself, and the phenomenon of axial shaking occurs.
More specifically, in the present embodiment, the two waist-shaped holes 111 on the opening part plate 11 are through holes with the same shape and size, and are mirror images of each other, so that the force-bearing rod 3 can simultaneously pass through the two waist-shaped holes 111.
More specifically, in this embodiment, two ends of the stress rod 3 penetrate through the waist-shaped hole 111, and two ends of the stress rod are respectively provided with an axial limiting mechanism for axially limiting the stress rod 3 and preventing the stress rod 3 from axially displacing. However, after the axial limiting mechanism is screwed, a certain gap is required to be left in the axial direction of the stress rod 3 to ensure that the stress rod 3 can slide along the extending direction of the two kidney-shaped holes 111.
More specifically, in this embodiment, the axial limiting mechanism at least includes a pair of elastic anti-slip axial limiting pieces 4, and the anti-slip surface of the elastic anti-slip axial limiting piece 4 is tightly attached to the outer side surface of the opening part plate 11. By adopting the technical scheme, the elastic anti-slip axial limiting piece 4 not only plays an axial limiting role in the stress rod 3, prevents the stress rod 3 from axially displacing along the stress rod, but also can increase the friction stress area on the surface of the outer side of the opening part plate 11, and plays the roles of increasing the friction force, improving the buffering capacity and clearing up the collision energy.
More specifically, in the present embodiment, the opening part plate 11 is disposed horizontally or vertically; when the opening part plate 11 is horizontally arranged, the long axis of the waist-shaped hole 111 is superposed with the extending direction of the control arm 7; when the opening part plate 11 is vertically arranged, the included angle between the long axis of the waist-shaped hole 111 and the horizontal plane is-45 degrees to 45 degrees.
More specifically, in the present embodiment, the angle between the long axis of the kidney-shaped hole 111 and the horizontal plane is-30 ° to 30 °.
More specifically, in the present embodiment, the angle between the long axis of the kidney-shaped hole 111 and the horizontal plane is-15 ° to 15 °.
More specifically, in the present embodiment, the angle between the long axis of the kidney-shaped hole 111 and the horizontal plane is-5 ° to 5 °.
By adopting the technical scheme, when the opening part plate 11 is horizontally arranged, the waist-shaped hole 111 extends along the push-pull force direction of the control arm 7, so that a sufficient buffer distance is provided to weaken the impact force of the stress rod 3 on the waist-shaped hole 111; when the opening component plate 11 is vertically arranged, when a vehicle is subjected to offset collision, the stress rod 3 can slide along the horizontal waist-shaped hole 111 in a friction manner, and can also slide along the waist-shaped hole 111 in an inclined manner upwards or downwards, so that the impact force of the stress rod 3 on the waist-shaped hole 111 is further weakened.
More specifically, in the present embodiment, the force receiving rod 3 is a bolt. The bolt rod part penetrates through the control arm bushing 2, and the bolt head parts and the nuts 5 positioned on two sides of the opening structure 1 play a role in axially limiting the bolt rod part.
In a second aspect, the present invention provides a subframe 6 provided with the above-described control arm-subframe connection mechanism. The opening structure 1 is arranged on the auxiliary frame 6 and comprises a pair of opening part plates 11; a pair of waist-shaped holes 111 with coaxiality are arranged on the opening structure 1, and the waist-shaped holes 111 are respectively positioned on the two opening part plates 11; the control arm bush 2 is arranged at the front end of the control arm 7 and can be installed between the pair of opening part plates 11; the stress rod 3 penetrates through the control arm bushing 2, and two ends of the stress rod are fixed in the kidney-shaped hole 111, so that when a vehicle is biased to collide, the stress rod 3 moves along the long axis direction of the kidney-shaped hole 111.
According to the connecting mechanism of the control arm and the auxiliary frame, the waist-shaped hole 111 is formed in the connecting position, when a vehicle is subjected to offset collision, the stress rod 3 moves along the long axis direction of the waist-shaped hole 111, and the collision energy generated in the offset collision process is effectively absorbed; it is ensured that the control arm 7 does not separate from the subframe 6 after offset collision.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a control arm and sub vehicle frame coupling mechanism which characterized in that includes:
the gear opening structure (1) is arranged on the auxiliary frame (6), and the gear opening structure (1) comprises a pair of gear opening part plates (11); the opening structure (1) is provided with a pair of waist-shaped holes (111) which are opposite in mirror image, and the waist-shaped holes (111) are respectively positioned on the two opening part plates (11);
the control arm bushing (2) is arranged at the front end of the control arm (7) and is installed between the two opening part plates (11); and
and the stress rod (3) penetrates through the control arm bushing (2), and two ends of the stress rod are connected in the waist-shaped hole (111), so that when a vehicle is subjected to offset collision, the stress rod (3) moves along the extending direction of the waist-shaped hole (111).
2. The control arm and subframe connection mechanism of claim 1, wherein: two ends of the stress rod (3) penetrate out of the waist-shaped hole (111), and two ends are respectively provided with an axial limiting mechanism.
3. The control arm and subframe connection mechanism of claim 2, wherein: the axial limiting mechanism at least comprises a pair of elastic anti-skidding axial limiting pieces (4), and anti-skidding surfaces of the elastic anti-skidding axial limiting pieces (4) are tightly attached to the outer side surface of the opening part plate (11).
4. The control arm and subframe connection mechanism of claim 3, wherein: the inner layer of the elastic anti-skidding axial limiting sheet (4) is a metal sheet, and two sides of the metal sheet are rubber layers.
5. The control arm and subframe connection mechanism as claimed in any one of claims 1 to 4, wherein: the waist-shaped hole (111) is a long circular hole or a long arc-shaped hole; the opening part plate (11) is horizontally or vertically arranged.
6. The control arm and subframe connection mechanism of claim 5, wherein: the waist-shaped hole (111) is an oblong hole; when the opening part plate (11) is horizontally arranged, the waist-shaped hole (111) extends along the push-pull force direction of the control arm (7); when the opening part plate (11) is vertically arranged, the included angle between the long axis of the waist-shaped hole (111) and the horizontal plane is-45 degrees to 45 degrees.
7. The control arm and subframe connection mechanism of claim 6, wherein: when the opening part plate (11) is vertically arranged, the included angle between the long axis of the waist-shaped hole (111) and the horizontal plane is-30 degrees.
8. The control arm and subframe connection mechanism of claim 7, wherein: when the opening part plate (11) is vertically arranged, the included angle between the long axis of the waist-shaped hole (111) and the horizontal plane is-15 degrees.
9. The control arm and subframe connection mechanism of claim 8, wherein: when the opening part plate (11) is vertically arranged, the included angle between the long axis of the waist-shaped hole (111) and the horizontal plane is-5 degrees.
10. An auxiliary frame is characterized in that: a control arm to subframe connection according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110874979.5A CN113525001A (en) | 2021-07-30 | 2021-07-30 | Connecting mechanism for control arm and auxiliary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110874979.5A CN113525001A (en) | 2021-07-30 | 2021-07-30 | Connecting mechanism for control arm and auxiliary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113525001A true CN113525001A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110874979.5A Pending CN113525001A (en) | 2021-07-30 | 2021-07-30 | Connecting mechanism for control arm and auxiliary frame |
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| Country | Link |
|---|---|
| CN (1) | CN113525001A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5775719A (en) * | 1997-03-21 | 1998-07-07 | General Motors Corporation | Control arm alignment mechanism |
| JP2015120469A (en) * | 2013-12-25 | 2015-07-02 | トヨタ自動車株式会社 | Suspension device for vehicle |
| CN107635858A (en) * | 2015-03-17 | 2018-01-26 | 宁波吉利汽车研究开发有限公司 | Control arm fixture |
| CN109572342A (en) * | 2017-09-29 | 2019-04-05 | 丰田自动车株式会社 | Lower arm support bracket and the lower arm supporting device for having the bracket |
| CN211107682U (en) * | 2019-09-30 | 2020-07-28 | 东风汽车集团有限公司 | Macpherson suspension with adjustable wheel camber angle |
| CN111716973A (en) * | 2020-06-24 | 2020-09-29 | 中国第一汽车股份有限公司 | Control arm mounting structure and vehicle |
-
2021
- 2021-07-30 CN CN202110874979.5A patent/CN113525001A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5775719A (en) * | 1997-03-21 | 1998-07-07 | General Motors Corporation | Control arm alignment mechanism |
| JP2015120469A (en) * | 2013-12-25 | 2015-07-02 | トヨタ自動車株式会社 | Suspension device for vehicle |
| CN107635858A (en) * | 2015-03-17 | 2018-01-26 | 宁波吉利汽车研究开发有限公司 | Control arm fixture |
| CN109572342A (en) * | 2017-09-29 | 2019-04-05 | 丰田自动车株式会社 | Lower arm support bracket and the lower arm supporting device for having the bracket |
| CN211107682U (en) * | 2019-09-30 | 2020-07-28 | 东风汽车集团有限公司 | Macpherson suspension with adjustable wheel camber angle |
| CN111716973A (en) * | 2020-06-24 | 2020-09-29 | 中国第一汽车股份有限公司 | Control arm mounting structure and vehicle |
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