CN209776143U - automobile, power assembly suspension system and torsion-resistant pull rod - Google Patents
automobile, power assembly suspension system and torsion-resistant pull rod Download PDFInfo
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- CN209776143U CN209776143U CN201920321630.7U CN201920321630U CN209776143U CN 209776143 U CN209776143 U CN 209776143U CN 201920321630 U CN201920321630 U CN 201920321630U CN 209776143 U CN209776143 U CN 209776143U
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Abstract
The utility model relates to an automobile, power assembly suspension system and antitorque pull rod, antitorque pull rod include the body of rod, first bush and second bush, set up first through-hole and second through-hole respectively at the relative both ends of the body of rod, first rubber body cladding forms first bush in the outside of first inner tube, impresses first bush in the first through-hole, and the outer wall of first rubber body attached in the inner wall of first through-hole, second rubber body cladding form the second bush in the outside of second inner tube, impresses the second bush in the second through-hole, and the outer wall of the second rubber body attached in the inner wall of first through-hole forms antitorque pull rod, therefore the outer tube has been saved to above-mentioned antitorque pull rod, and the subassembly is less, and weight is lighter.
Description
Technical Field
the utility model relates to an automobile parts technical field especially relates to an automobile, power assembly suspension system, antitorque pull rod and rigidity design method thereof.
Background
Currently, torsion-resistant pull rods are widely used as suspension elements in powertrain suspension systems of automobiles. In the power assembly suspension system, one end of the torsion-resistant pull rod is connected with the power assembly, and the other end of the torsion-resistant pull rod is connected with a vehicle body or an auxiliary frame.
The structure of traditional antitorque pull rod generally is that the both ends voltage-sharing of the body of rod goes into rubber bush, and the subassembly is more, and weight is heavier. The rigidity of the torsion-resistant pull rod is generally calculated by directly carrying out finite element analysis on the torsion-resistant pull rod, and the calculation efficiency is low due to the complex data and the large analysis workload.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a torsion resistant tie bar with less components and lighter weight, and a vehicle and powertrain suspension system using the torsion resistant tie bar; and provides a rigidity design method of the torsion resistant pull rod, which can effectively improve the calculation efficiency.
A torsion brace, comprising:
the device comprises a rod body, a first connecting rod and a second connecting rod, wherein a first through hole and a second through hole are respectively formed in two opposite ends of the rod body;
The first bushing comprises a first rubber body and a first inner pipe, the first rubber body is wrapped on the outer side of the first inner pipe, and the outer wall of the first rubber body is attached to the inner wall of the first through hole; and
The second bushing comprises a second rubber body and a second inner pipe, the second rubber body is wrapped on the outer side of the second inner pipe, and the outer wall of the second rubber body is attached to the inner wall of the first through hole.
In one embodiment, the rod body is made of a profile, and the first through hole and the second through hole are formed through an extrusion process.
in one embodiment, the first rubber body, the rod body and the first inner tube are vulcanized into an integral structure, and the second rubber body and the second inner tube are pressed into the second through hole after being vulcanized into an integral structure.
In one embodiment, a first lightening hole is further formed between two opposite ends of the rod body.
In one embodiment, the first rubber body comprises a first coating part, a second coating part and a connecting part which are integrally formed, the first coating part coats the inner wall of the first through hole, the second coating part coats the outer wall of the inner tube, and the connecting part is connected with the first coating part and the second coating part.
In one embodiment, the first cladding part is formed with a first protrusion protruding towards the direction close to the second cladding part; and/or
The second cladding part is provided with a second bulge in a protruding mode towards the direction close to the first cladding part.
In one embodiment, the first inner tube includes a tube hole portion and a reinforcement portion, the tube hole of the first inner tube is opened on the tube hole portion, and the reinforcement portion is used for increasing the strength of the first inner tube.
In one embodiment, the outer periphery of the first inner tube is further formed with a protruding portion in a protruding manner.
The torsion resistant pull rod has at least the following advantages:
The anti-torsion pull rod comprises a rod body, a first inner tube, a second inner tube, a first rubber body, a second rubber body, a first through hole, a second rubber body and a second rubber body, wherein the first through hole and the second through hole are respectively formed at two opposite ends of the rod body, the first rubber body is wrapped on the outer side of the first inner tube to form a first bushing, the first bushing is pressed into the first through hole, the outer wall of the first rubber body is attached to the inner wall of the first through hole, the second rubber body is wrapped on the outer side of the second inner tube to form a second bushing, the second bushing is pressed into the second through hole, and the outer wall of the second rubber body is.
a power assembly suspension system comprises a power assembly, the torsion-resistant pull rod and a vehicle body or a vehicle frame, wherein one end of the rod body, provided with a first through hole, is connected with the power assembly, and the other end of the rod body, provided with a second through hole, is connected with the vehicle body or the vehicle frame.
An automobile comprising a torsion resistant tie rod as claimed in any one of the preceding claims or a powertrain suspension system as claimed above.
the automobile and power assembly suspension system has the advantages of fewer components and lighter weight due to the application of the torsion-resistant pull rod.
Drawings
FIG. 1 is a perspective view of a torsion resistant pull rod in one embodiment;
FIG. 2 is a front view of the torsion beam of FIG. 1;
FIG. 3 is a top view of the torsion brace of FIG. 1;
3 FIG. 3 4 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 3 3; 3
FIG. 5 is a cross-sectional view of another embodiment torsion resistant tension rod;
Fig. 6 is another cross-sectional view of the torsion beam of fig. 5.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Referring to fig. 1-4, an embodiment of the torsion beam 10 has the advantages of fewer components and lighter weight than conventional torsion beams. Specifically, the torsion bar 10 of the present embodiment includes a rod body 100, a first bushing 200, and a second bushing 300.
The opposite ends of the rod 100 are respectively provided with a first through hole 110 and a second through hole 120, and in the embodiment shown in fig. 1, the axis of the first through hole 110 is parallel to the axis of the second through hole 120. Specifically, the rod body 100 may be made of a profile, and the first through hole 110 and the second through hole 120 are formed by an extrusion process, so that the manufacturing period may be further shortened.
of course, referring to fig. 5 and fig. 6, in another embodiment, the axis of the first through hole 110 is spatially perpendicular to the axis of the second through hole 120. Of course, in other embodiments, the axis of the first through hole may also be neither parallel nor perpendicular to the axis of the second through hole, for example arranged at an acute or obtuse angle.
A first lightening hole 130 is further formed between the two opposite ends of the rod body 100, and the first lightening hole 130 can lighten the weight of the rod body 100 while ensuring the strength of the rod body 100, thereby reducing the overall weight of the torsion resistant pull rod 10. For example, the number of the first lightening holes 130 is two, and the two first lightening holes 130 are spaced between the two opposite ends of the rod body 100. Of course, in other embodiments, the number of the first lightening holes 130 may be one, three, or the like, as long as the weight of the rod body 100 can be reduced while ensuring the strength of the rod body 100.
The first bushing 200 includes a first rubber 210 and a first inner tube 220, the first rubber 210 covers the outer side of the first inner tube 220, and the outer wall of the first rubber 210 is attached to the inner wall of the first through hole 110. In the present embodiment, the first rubber 210, the rod 100 and the first inner tube 220 are vulcanized into an integral structure. Therefore, in the present embodiment, the first bushing 200 omits an outer tube, reduces the number of components, and effectively reduces the weight.
For example, in the present embodiment, the first through hole 110 is a non-circular hole, which increases the mass of the first rubber body 210 and is advantageous for vibration reduction. The second through-hole 120 is a circular hole, and the inner diameter of the first through-hole 110 is greater than the inner diameter of the second through-hole 120.
The second bushing 300 includes a second rubber 310 and a second inner tube 320, the second rubber 310 covers the outer side of the second inner tube 320, and the outer wall of the second rubber 310 is attached to the inner wall of the first through hole 110. In the present embodiment, the second rubber member 310 and the second inner pipe 320 are vulcanized to be an integral structure and then pressed into the second through hole 120. Therefore, in the present embodiment, the second bushing 300 omits an outer tube, reduces the number of components, and effectively reduces the weight.
In the present embodiment, the outer periphery of the first rubber body 210 is adapted to the shape of the inner wall of the first through hole 110, and the hollow cylindrical tubular structure of the second rubber body 310 is wrapped outside the second inner pipe 320 in a manner adapted to the shape of the inner wall of the second through hole 120.
Specifically, in the present embodiment, the first rubber body 210 includes a first covering part 211, a second covering part 212 and a connecting part 213, which are integrally formed, the first covering part 211 covers the inner wall of the first through hole 110, the second covering part 212 covers the outer wall of the inner tube, and the connecting part 213 connects the first covering part 211 and the second covering part 212. The connecting portion 213 does not connect all of the first covering portion 211 and the second covering portion 212, and a certain margin needs to be left in order to ensure the rigidity of the first rubber body 210 and further improve the durability of the first rubber body 210. It should be noted that the shape corresponding to the blank is not limited to the illustrated shape, and may be other shapes as long as the rigidity is satisfied.
specifically, in the present embodiment, the first cover 211 is formed with a first protrusion 214 protruding in a direction close to the second cover 212. And/or the second coating portion 212 is formed with a second protrusion 215 protruding in a direction close to the first coating portion 211. The first protrusion 214 and the second protrusion 215 are designed to further increase the mass of the first rubber body 210, thereby further improving the vibration damping capability.
Specifically, in the present embodiment, the first inner tube 220 includes a tube hole portion 221 and a reinforcement portion 222 which are integrally formed, the tube hole of the first inner tube 220 is opened in the tube hole portion 221, and the reinforcement portion 222 is used to increase the strength of the first inner tube 220. The design of the first inner tube 220 is beneficial to increase the contact area between the first rubber body 210 and the first inner tube 220, and to improve the vibration damping capacity, and is beneficial to increase the strength of the first inner tube 220, and to prevent the first inner tube 220 from breaking.
Further, a second lightening hole 223 is formed in the reinforcing portion 222, and the second lightening hole 223 is beneficial to reducing the weight of the first inner tube 220 on the premise of ensuring the strength of the first inner tube 220, so that the overall weight of the torsion resistant pull rod 10 is reduced. For example, in the present embodiment, the number of the second lightening holes 223 may be four, and four second lightening holes 223 are distributed in an array. Of course, in other embodiments, the number of the second lightening holes 223 may be one, two, three, five, etc., as long as the purpose of reducing the weight of the first inner tube 220 under the premise of ensuring the strength of the first inner tube 220 can be achieved.
further, a convex portion 224 is formed at the outer periphery of the first inner tube 220 in a protruding manner, and the convex portion 224 is used for further increasing the contact area between the first inner tube 220 and the first rubber body 210, so that the strength of the first inner tube 220 and the first rubber body 210 after being matched is improved, and the vibration damping capacity is improved. For example, in the present embodiment, two protrusions 224 may be formed on the tube hole 221 in a protruding manner, and the two protrusions 224 may be spaced apart from each other at the periphery of the tube hole 221. Two protrusions 224 may be formed on the reinforcing portion 222 in a protruding manner, and the two protrusions 224 may be located at the periphery of the reinforcing portion 222.
The torsion resistant pull rod 10 described above has at least the following advantages:
The opposite ends of the rod body 100 are respectively provided with a first through hole 110 and a second through hole 120, the first rubber body 210 is wrapped on the outer side of the first inner tube 220 to form a first bushing 200, the first bushing 200 is pressed into the first through hole 110, the outer wall of the first rubber body 210 is attached to the inner wall of the first through hole 110, the second rubber body 310 is wrapped on the outer side of the second inner tube 320 to form a second bushing 300, the second bushing 300 is pressed into the second through hole 120, and the outer wall of the second rubber body 310 is attached to the inner wall of the first through hole 110 to form the anti-torsion pull rod 10, so that the anti-torsion pull rod 10 omits an outer tube, has fewer components and is lighter in weight.
The utility model also provides a power assembly suspension system, including power assembly, as above antitorque pull rod 10 and automobile body or frame, the one end that first through-hole 110 was seted up to body of rod 100 links to each other with power assembly, and the one end that second through-hole 120 was seted up to body of rod 100 links to each other with automobile body or frame. The vibration of the powertrain is isolated by the first rubber body 210 and then transmitted to the rod body 100, and then the vibration of the rod body 100 is isolated by the second rubber body 310 and then transmitted to the vehicle body or the vehicle frame. The power assembly suspension system also has the advantages of fewer components and lighter weight.
The present invention also provides an automobile comprising the torsion resistant tie rod 10 or the powertrain suspension system as described above. The automobile also has the advantages of fewer components and lighter weight.
The utility model also provides a rigidity design method of antitorque pull rod, including following step:
In step S110, the first rubber body 210 is wrapped around the first inner pipe 220 to form the first bushing 200.
In step S120, the second rubber member 310 is wrapped around the second inner pipe 320 to form the second bushing 300. It should be noted that the relative order between step S110 and step S120 may be reversed.
Step S130 is to acquire the values of the stiffness of the first bushing 200 and the second bushing 300. Wherein the stiffness values of the first bushing 200 in each direction are kx1、ky1、kz1、kα1、kβ1The stiffness values of the second bush 300 in the respective directions are kx2、ky2、kz2、kα2、kβ2. The values of the anisotropy of the first bushing 200 and the second bushing 300 may be obtained by simple formula calculation, stiffness test, finite element calculation, and the like.
Step S140 sets a horizontal center distance L and a height distance H between the first bushing 200 and the second bushing 300, wherein the horizontal center distance L is a horizontal distance between the axis of the first inner tube 220 and the axis of the second inner tube 320, and the height distance H is a height distance between the center of the first inner tube 220 and the center of the second inner tube 320. The center distance between the first bushing 200 and the second bushing 300 is generally related to the layout of the whole vehicle, and the center horizontal distance between the first bushing 200 and the second bushing 300 may be different for different vehicle types.
In step S150, a first through hole 110 and a second through hole 120 are formed on the rod body 100 according to the central horizontal distance L. Specifically, the rod body 100 is made of a profile, and the first through hole 110 and the second through hole 120 are formed by a profile extrusion process, so that the manufacturing period is further shortened.
Step S160, the first bushing 200 is pressed into the first through hole 110, the outer wall of the first rubber body 210 is attached to the inner wall of the first through hole 110, the second bushing 300 is pressed into the second through hole 120, and the outer wall of the second rubber body 310 is attached to the inner wall of the first through hole 110, so as to form the torsion resistant bar 10. In this embodiment, the first rubber body 210, the first inner tube 220 and the rod body 100 may be integrally vulcanized, and the second rubber body 310 and the second inner tube 320 may be integrally vulcanized and then pressed into the second through hole 120.
Step S170, calculating the overall stiffness value of the torsion beam 10. The calculation formula is as follows:
X-direction stiffness value:
Y-direction stiffness value:
Z-direction stiffness value:
If the overall stiffness value of the anti-twist tie 10 meets the stiffness design requirement, the structure of the anti-twist tie 10 is determined.
If the overall stiffness value of the anti-torsion tie 10 does not satisfy the stiffness design requirement, the adjustment is made according to the structural size of the first rubber body 210 and the stiffness of the used rubber compound of the first bushing 200, the structural size of the second rubber body 310 of the second bushing 300 and the stiffness of the used rubber compound until the overall stiffness value of the anti-torsion tie 10 satisfies the stiffness design requirement.
Since the outer tube is omitted in both the first bushing 200 and the second bushing 300, the number of components of the torsion resistant tie bar 10 is small, and the amount of analysis work is small when obtaining the values of the respective rigidities of the first bushing 200 and the second bushing 300, thereby effectively improving the calculation efficiency. In addition, the rigidity design method of the torsion-resistant pull rod 10 does not directly calculate the overall rigidity value of the torsion-resistant pull rod 10 by a finite element analysis method, so that the defect of large analysis workload can be avoided, and the working efficiency is effectively improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
the above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An anti-twist tie, comprising:
the device comprises a rod body, a first connecting rod and a second connecting rod, wherein a first through hole and a second through hole are respectively formed in two opposite ends of the rod body;
The first bushing comprises a first rubber body and a first inner pipe, the first rubber body is wrapped on the outer side of the first inner pipe, and the outer wall of the first rubber body is attached to the inner wall of the first through hole; and
The second bushing comprises a second rubber body and a second inner pipe, the second rubber body is wrapped on the outer side of the second inner pipe, and the outer wall of the second rubber body is attached to the inner wall of the first through hole.
2. The torsion bar according to claim 1, wherein the bar body is formed from a profile, and the first and second through holes are formed by an extrusion process.
3. The torsion bar according to claim 2, wherein the first rubber body is integrally vulcanized with the bar body and the first inner tube, and the second rubber body is integrally vulcanized with the second inner tube and pressed into the second through hole.
4. The torsion beam according to claim 1, wherein a first lightening hole is further defined between opposite ends of the beam body.
5. The torsion resistant pull rod according to any one of claims 1 to 4, wherein the first rubber body comprises a first cladding, a second cladding and a connecting portion, the first cladding is clad on an inner wall of the first through hole, the second cladding is clad on an outer wall of the inner tube, and the connecting portion connects the first cladding and the second cladding.
6. The torsion brace of claim 5, wherein the first cladding portion is formed with a first protrusion protruding in a direction adjacent to the second cladding portion; and/or
the second cladding part is provided with a second bulge in a protruding mode towards the direction close to the first cladding part.
7. the torsion beam according to any one of claims 1 to 4, wherein the first inner tube includes a tube hole portion and a reinforcement portion, the tube hole of the first inner tube being opened at the tube hole portion, the reinforcement portion being configured to increase strength of the first inner tube.
8. The torsion bar according to any one of claims 1 to 4, wherein the first inner tube further has a protrusion formed at an outer peripheral edge thereof.
9. A powertrain suspension system comprising a powertrain, the torsion resistant linkage of any one of claims 1 to 8, and a body or frame, wherein an end of the rod body defining the first through hole is connected to the powertrain, and an end of the rod body defining the second through hole is connected to the body or frame.
10. An automobile comprising a torsion beam according to any one of claims 1 to 8 or a powertrain suspension system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920321630.7U CN209776143U (en) | 2019-03-13 | 2019-03-13 | automobile, power assembly suspension system and torsion-resistant pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920321630.7U CN209776143U (en) | 2019-03-13 | 2019-03-13 | automobile, power assembly suspension system and torsion-resistant pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209776143U true CN209776143U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920321630.7U Active CN209776143U (en) | 2019-03-13 | 2019-03-13 | automobile, power assembly suspension system and torsion-resistant pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209776143U (en) |
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2019
- 2019-03-13 CN CN201920321630.7U patent/CN209776143U/en active Active
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