CN117818330A - Suspension bracket of automobile power assembly - Google Patents
Suspension bracket of automobile power assembly Download PDFInfo
- Publication number
- CN117818330A CN117818330A CN202410228800.2A CN202410228800A CN117818330A CN 117818330 A CN117818330 A CN 117818330A CN 202410228800 A CN202410228800 A CN 202410228800A CN 117818330 A CN117818330 A CN 117818330A
- Authority
- CN
- China
- Prior art keywords
- arm
- root
- vehicle
- power assembly
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 34
- 230000037396 body weight Effects 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Abstract
The application provides an automobile power assembly suspension support, include the root of being connected with the sub vehicle frame, the both sides of root are equipped with the arm A who is connected with the automobile body longeron and with the arm B that power assembly suspension cushion is connected, arm A and arm B satisfy following formula: fa=fb×lb, where Fa is the load of the vehicle body weight on the arm a when the vehicle is horizontally stationary, fb is the load of the power unit weight on the arm B when the vehicle is horizontally stationary, la is the horizontal distance between the arm a and the vehicle body connection point and the center point of the root and subframe connection region, and Lb is the horizontal distance between the arm B and the power unit suspension cushion connection point and the center point of the root and subframe connection region. According to the auxiliary frame, the matching design of the arm A and the arm B improves the stress of the root, so that the joint of the support and the auxiliary frame is free from the bending moment effect, the strength and fatigue durability of the support and the joint of the support and the auxiliary frame are effectively improved, the number of parts is reduced, the arrangement space is saved, and the weight and the cost are also reduced.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to an automobile power assembly suspension bracket.
Background
For automobiles with sub-frames, the sub-frames are connected to the body side rails by means of body connecting brackets, and sometimes also connected to the body side rails by means of protruding form features, which can also be regarded as a kind of body connecting brackets. The subframe is also typically provided with a powertrain suspension bracket (passive side bracket) connected to the powertrain. The vehicle body connecting bracket and the power assembly suspension bracket are of cantilever structures, respectively support the weight of the vehicle body and the power assembly, the root of the vehicle body connecting bracket and the power assembly suspension bracket generate larger moment, and the two brackets are required to be designed to be thick enough to ensure enough strength and durability, and the connection between the vehicle body connecting bracket and the auxiliary frame also needs to be reinforced, so that the weight and the cost are increased. Therefore, the inventor provides a two-in-one bracket which can be used as a vehicle body connecting bracket and a power assembly suspension bracket, has compact structure and saves space, weight and cost; the stress of the root part of the bracket is improved through the matching design of the lengths of the two upper arms of the bracket, so that the bracket can be further lightened; the connection of the bracket with the auxiliary frame and the longitudinal beam of the vehicle body can flexibly adopt various modes.
Disclosure of Invention
The utility model provides an aim at provides an automobile power assembly suspension support, it can practice thrift the arrangement space, reduces weight and cost.
Embodiments of the present application are implemented as follows:
the application provides an automobile power assembly suspension support, include the root of being connected with the sub vehicle frame, the both sides of root are equipped with the arm A who is connected with the automobile body longeron and with the arm B that power assembly suspension cushion is connected, arm A and arm B satisfy following formula: fa=fb×lb, where Fa is the load of the vehicle body weight on the arm a when the vehicle is horizontally stationary, fb is the load of the power unit weight on the arm B when the vehicle is horizontally stationary, la is the horizontal distance between the arm a and the vehicle body connection point and the center point of the root and subframe connection region, and Lb is the horizontal distance between the arm B and the power unit suspension cushion connection point and the center point of the root and subframe connection region.
According to the vehicle auxiliary frame connecting device, the stress of the root is improved through the matching design of the arm A and the arm B, so that the connecting position of the bracket and the auxiliary frame is free from the bending moment effect in the horizontal standing state of the vehicle, the strength and fatigue durability of the bracket and the connecting position of the bracket and the auxiliary frame are effectively improved, the bracket is used for replacing the space between the vehicle body connecting bracket and the passive side of the power assembly suspension, the number of parts is reduced, the arrangement space is saved, and the weight and the cost are also reduced.
In an alternative embodiment, the root is configured in an arc shape.
In an alternative embodiment, the angle between arm a and arm B is an obtuse angle.
In an alternative embodiment, the end of the arm a is provided with a hollow first connection.
In an alternative embodiment, the axis of the first connection is perpendicular to the axis of the root.
In an alternative embodiment, the end of the arm B is provided with a hollow second connection.
In an alternative embodiment, the axis of the second connection is parallel to the axis of the root.
In an alternative embodiment, the two sides of the arm a are provided with weight-reducing grooves.
Drawings
Exemplary embodiments of the present application will be described in detail below with reference to the attached drawings, and it should be understood that the embodiments described below are only for the purpose of explaining the present application and not limiting the scope of the present application, wherein:
FIG. 1 is a schematic illustration of an automotive powertrain suspension mount according to an embodiment of the present application;
FIG. 2 is a side view of an automotive powertrain suspension mount according to an embodiment of the present application
Reference numerals:
10. root part;
20. an arm A;
30. an arm B;
21. a first connection portion;
22. a weight reduction groove;
31. and a second connecting part.
Detailed Description
Example 1
Referring to fig. 1-2, the present embodiment provides an automobile power assembly suspension bracket to solve the problem that the weight and cost are increased due to the fact that the root of the existing bracket generates a larger torque, and the bracket of the present embodiment is provided with two connecting arms, and the stress of the root of the bracket is improved by matching the two connecting arms, so that the root of the bracket is not affected by a bending moment in a horizontal standing state of a vehicle, only has a vertical force effect, the root strength and the fatigue life can be obviously improved, further the weight is reduced, and the weight and the cost are reduced.
Specifically, the automobile power assembly suspension bracket comprises a root part 10 connected with the auxiliary frame, the two sides of the root part 10 are provided with an arm A20 connected with the longitudinal beam of the automobile body and an arm B30 connected with the power assembly suspension cushion, and the arm A20 and the arm B30 meet the following formula: fa=fb=lb, where Fa is the load of the vehicle body weight on the arm a20 when the vehicle is horizontally stationary, fb is the load of the power train weight on the arm B30 when the vehicle is horizontally stationary, la is the horizontal distance between the arm a20 and the vehicle body connection point and the center point of the root 10 and subframe connection region, and Lb is the horizontal distance between the arm B30 and the power train suspension cushion connection point and the center point of the root 10 and subframe connection region.
It should be noted that, in this embodiment, the whole bracket may be formed by metal plate welding, casting or forging, the root portion 10 of the bracket is configured to be arc-shaped, the root portion 10 is connected to the subframe, the connection between the root portion 10 and the subframe may be electric welding (only for metal plate welding), seam welding or bolting, as an example, the center point of the connection region between the root portion 10 and the subframe is C; arm A and arm B are arranged on two sides of root 10 respectively, the included angle between arm A and arm B is an obtuse angle, a hollow first connecting part 21 is arranged at the tail end of arm A, a hollow second connecting part 31 is arranged at the tail end of arm B, the axis of first connecting part 21 is perpendicular to the axis of root 10, the axis of second connecting part 31 is parallel to the axis of root 10, as an example, the tail end of arm A is connected with a vehicle body connecting point A, the tail end of arm B is connected with a power assembly suspension soft cushion connecting point B, la is the horizontal distance between point A and point C, lb is the horizontal distance between point B and point C, and when designing the size of the bracket, the following requirements are met: fa=fb=lb, and bending moments generated by Fa and Fb at point C cancel each other, that is, in a horizontal rest state of the vehicle, the connection position (near point C) between the bracket and the subframe is not affected by the bending moment, and only a vertical force acts, so that the strength and fatigue life of the position are obviously improved, the strength and fatigue durability of the bracket and the connection position between the bracket and the subframe are effectively improved, and the position can be further lightened.
It should be noted that, the connection between the arm a and the vehicle body may be directly connected by bolts, or may be connected by suspension cushions to improve vibration and noise of the passenger compartment; the connection of arm B to the locomotion assembly is typically via a suspended cushion.
It should be appreciated that the bracket of the present embodiment has two connecting arms, i.e., arm a and arm B, and replaces the existing vehicle body connecting bracket and powertrain suspension passive side bracket with one bracket, thereby reducing the number of components, saving layout space, and reducing weight and cost.
In the alternative, in order to further achieve a lightweight design, weight-reducing grooves 22 are provided on both sides of the arm a.
Although embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (8)
1. The utility model provides an automobile power assembly suspension support which characterized in that, includes the root of being connected with the sub vehicle frame, the both sides of root are equipped with the arm A that is connected with the automobile body longeron and with power assembly suspension cushion is connected, arm A with arm B satisfies following formula: fa=fb×lb, where Fa is the load of the vehicle body weight on the arm a when the vehicle is horizontally stationary, fb is the load of the powertrain weight on the arm B when the vehicle is horizontally stationary, la is the horizontal distance between the arm a and the vehicle body connection point and between the root and the center point of the subframe connection region, and Lb is the horizontal distance between the arm B and the powertrain suspension cushion connection point and between the root and the center point of the subframe connection region.
2. The automotive powertrain suspension mount of claim 1 wherein,
the root portion is configured in an arc shape.
3. The automotive powertrain suspension mount of claim 2 wherein,
the included angle between the arm A and the arm B is an obtuse angle.
4. The automotive powertrain suspension mount of claim 3 wherein,
the tail end of the arm A is provided with a hollow first connecting part.
5. The automotive powertrain suspension mount of claim 4 wherein,
the axis of the first connecting portion is perpendicular to the axis of the root portion.
6. The automotive powertrain suspension mount of claim 5 in which,
the tail end of the arm B is provided with a hollow second connecting part.
7. The automotive powertrain suspension mount of claim 6 wherein,
the axis of the second connecting portion is parallel to the axis of the root portion.
8. The automotive powertrain suspension mount of claim 7 wherein,
weight reducing grooves are formed in two sides of the arm A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410228800.2A CN117818330A (en) | 2024-02-29 | 2024-02-29 | Suspension bracket of automobile power assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410228800.2A CN117818330A (en) | 2024-02-29 | 2024-02-29 | Suspension bracket of automobile power assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117818330A true CN117818330A (en) | 2024-04-05 |
Family
ID=90517571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410228800.2A Pending CN117818330A (en) | 2024-02-29 | 2024-02-29 | Suspension bracket of automobile power assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117818330A (en) |
-
2024
- 2024-02-29 CN CN202410228800.2A patent/CN117818330A/en active Pending
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