CN215552513U - Suspension assembly and power assembly suspension system - Google Patents

Abstract

The utility model provides a suspension assembly and a power assembly suspension system, the suspension assembly comprises a suspension mounting bracket and a suspension component, wherein the suspension mounting bracket is provided with a horizontal first supporting surface and a second supporting surface arranged at an angle with the first supporting surface; the suspension assembly is provided with a base, the base comprises a first abutting surface and at least two support arms which are arranged at an angle with the first abutting surface, and a limit groove is formed between every two adjacent support arms; the support arm and first holding surface fixed connection, first butt face and second holding surface butt, the second holding surface stretches into the spacing inslot partially at least. According to the utility model, through the arrangement of the horizontal first supporting surface, the second supporting surface arranged at an angle with the first supporting surface, the first abutting surface positioned on the suspension component, the support arm and the limit groove formed by the adjacent support arms, the assembly of the suspension assembly can be facilitated, the structure of the suspension assembly can be simplified, and the manufacturing of the suspension assembly is facilitated.

Description

Suspension assembly and power assembly suspension system

Technical Field

The utility model relates to the technical field of vehicle parts, in particular to a suspension assembly. The utility model also relates to a power assembly suspension system formed by the suspension assembly.

Background

The suspension is an important connecting component in the vehicle, which can play a role in buffering and damping vibration and has a crucial influence on improving the overall driving comfort of the vehicle. Taking the suspension applied to the powertrain as an example, in the powertrain combining process, for a longitudinally-mounted vehicle type of the powertrain, a lifting device is usually adopted to lower the powertrain so as to seat the powertrain on the frame, and the powertrain is connected to the frame through the suspension assembly. Most of the existing suspension assemblies for the power assembly have the defects of complex structure, difficult manufacturing and the like, and the convenience of the existing suspension assembly is also poor, so that the combination efficiency of the power assembly is also influenced.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention is directed to a suspension assembly that facilitates assembly and manufacture of the suspension assembly.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a suspension assembly comprises a suspension mounting bracket and a suspension assembly, wherein the suspension mounting bracket is provided with a horizontal first supporting surface and a second supporting surface arranged at an angle with the first supporting surface; the suspension assembly is provided with a base, the base comprises a first abutting surface and at least two support arms which are arranged at an angle with the first abutting surface, and a limit groove is formed between every two adjacent support arms; the support arm with first holding surface fixed connection, first butt face with the second holding surface butt, the second holding surface at least partially stretches into the spacing inslot.

Furthermore, the suspension mounting bracket comprises a bracket main body, wherein a horizontal first support plate and a second support plate which forms an angle with the first support plate are respectively arranged on the bracket main body, the first support plate forms the first support surface, an overhanging support arm is integrally formed on the second support plate, the support arm extends into the limit groove, and the support arm and the second support plate together form the second support surface.

Furthermore, a guide inclined plane and a limiting plane are formed on the side part of the supporting arm close to the supporting arm; the supporting arm is guided to the limiting groove by the guide inclined plane, and the limiting surface is in limiting fit with the corresponding supporting arm.

Further, the number of the support arms is two.

Furthermore, the support arm is fixedly connected with the first support surface through a connecting piece.

Furthermore, a support connecting hole is formed in the first supporting surface, and a base connecting hole is formed in the support arm at least connected with the first supporting surface; the connecting piece adopts a connecting bolt, and the connecting bolt penetrates through the base connecting hole and the support connecting hole and then is connected with the nut in a threaded manner.

Furthermore, the suspension assembly is also provided with a rubber main spring connected with the base and a connecting seat connected with the rubber main spring; the connecting seat comprises a connecting plate fixedly connected with the rubber main spring and a mounting stud fixedly connected on the connecting plate.

Furthermore, a suspension protecting cover is buckled on the connecting plate, and the mounting stud penetrates through the suspension protecting cover; the base have with the limiting plate that at least one lateral wall of suspension protecting cover was arranged side by side, be equipped with spacing gluey piece on the limiting plate.

Furthermore, a positioning pin is fixedly connected to the connecting plate and penetrates through the suspension protecting cover; the limiting rubber block is provided with a noise reduction bulge which can be abutted against the side wall of the suspension protecting cover.

Compared with the prior art, the utility model has the following advantages:

according to the suspension assembly, the horizontal first supporting surface, the second supporting surface arranged at an angle with the first supporting surface, the first abutting surface positioned on the suspension component, the supporting arm and the limiting groove formed by the adjacent supporting arm are arranged, so that the second supporting surface and the limiting groove can be used for limiting, the assembly operation is convenient when the suspension component and the suspension mounting bracket are assembled, and the convenience of suspension assembly is improved. Meanwhile, only the supporting surfaces which are at an angle with each other need to be arranged, and the limiting grooves are formed through the supporting arms, so that the structure of the suspension assembly can be simplified, and the manufacturing of the suspension assembly is facilitated.

Another objective of the present invention is to provide a powertrain suspension system, which includes a plurality of sets of the suspension assemblies as described above, wherein each set of the suspension assemblies is plural and divided into two parts, and two parts of the suspension assemblies are respectively disposed on two opposite sides of the powertrain.

The power assembly suspension system can facilitate the manufacture of the suspension assembly, improve the convenience of suspension assembly and the assembly efficiency of the power assembly by applying the suspension assembly, and has good practicability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a suspension assembly according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a suspension mounting bracket according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a suspension assembly according to an embodiment of the present invention;

FIG. 4 is a front view of a suspension assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of a suspended cover according to an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating the arrangement of a suspension assembly in the powertrain suspension system according to the second embodiment of the present invention;

description of reference numerals:

1. suspending the mounting bracket; 100. a stent body; 101. a first support plate; 102. a second support plate; 103. first welding flanging; 104. second welding flanging; 105. a support arm; 106. a guide slope; 107. a limiting surface; 108. a first support surface; 109. a second support surface; 1010. a bracket connection hole;

2. a suspension assembly; 201. a rubber main spring; 202. a base; 203. a connecting plate; 204. mounting a stud; 205. positioning pins; 206. a support arm; 207. a first abutting surface; 208. a second abutting surface; 209. a base connection hole; 2010. a limiting rubber block; 2011. a noise reduction projection;

3. a suspended shield; 301. a side wall; 302. a first via hole; 303. a second via hole;

4. a connecting member;

5. welding a nut;

6. and a power assembly.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inside", "outside", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

The embodiment relates to a suspension assembly, which is generally used for mounting a power assembly 6 in a vehicle frame, so that on the basis of realizing reliable mounting of the power assembly 6, vibration damping and buffering between the power assembly 6 and the frame can be realized, and the use comfort of the vehicle can be improved.

The suspension assembly of this embodiment includes suspension mounting bracket 1 and suspension subassembly 2, and wherein, overall design is last to be equipped with the first holding surface 108 of horizontally on the suspension mounting bracket 1 to and be the second holding surface 109 that the angle set up with first holding surface 108. The suspension assembly 2 has a base 202, the base 202 includes a first abutting surface 207, and at least two arms 206 disposed at an angle to the first abutting surface 207, and a limit slot is formed between two adjacent arms 206.

In addition, in the embodiment, the supporting arm 206 is fixedly connected to the first supporting surface 108, meanwhile, the first abutting surface 207 abuts against the second supporting surface 109, and the second supporting surface 109 at least partially extends into the limiting groove.

Based on the above general description, an exemplary structure of the suspension assembly of the present embodiment is shown in fig. 1 to 4, in which the base 202 is specifically provided with two arms 206, and the above-mentioned limiting groove is formed between the two arms 206.

In a further preferred embodiment, an outwardly extending support arm 105 is also provided on the suspension mounting bracket 1, the support arm 105 extending into the limit groove. Meanwhile, a guide slope 106 and a stopper face 107 are formed on the side of the support arm 105 near the support arm 206, that is, on two opposite sides of the support arm 105, respectively. The support arm 105 is guided into the limit groove by the guide slopes 106 on both sides, and the limit surfaces on both sides are in limit fit with the corresponding support arm 206, so that the support arm 105 can be limited in the limit groove.

In addition, in the present embodiment, the arm 206 and the first supporting surface 108 are also connected together by the connecting member 4, and thereby the suspension mounting bracket 1 and the suspension assembly 2 are fixedly connected.

More specifically, as also shown in fig. 2, the suspension mounting bracket 1 of the present embodiment specifically includes a bracket main body 100, and a horizontal first leg plate 101 provided on the bracket main body 100, and a second leg plate 102 provided at an angle to the first leg plate 101. The bracket body 100 is a box-shaped structure with an internal cavity, the second plate 102 is fixedly connected to one end of the bracket body 100, and generally, the second plate 102 is connected to the bracket body 100 by welding. Still taking the installation of the powertrain 6 on the vehicle as an example, the suspension mounting bracket 1 is usually fixed on the vehicle frame, the suspension component 2 is connected with the powertrain 6, and the suspension component 2 is fixedly connected with the suspension mounting bracket 1 through the connecting piece 4 by the assembly of the powertrain 6 on the vehicle frame, thereby forming the whole suspension assembly.

At this time, in order to connect with the vehicle frame, the present embodiment forms a first welding flange 103 which is turned outwards on the bracket main body 100, and also forms a second welding flange 104 on one side of the first supporting plate 101, and the first welding flange 103 and the second welding flange 104 can be connected with the vehicle frame by welding to fix the suspension mounting bracket 1 on the vehicle frame.

It should be noted that, in addition to the first welding flange 103 and the second welding flange 104, only one of the two welding flanges may be provided, and other parts of the bracket main body 1 may be connected to the frame to ensure the connection reliability. Generally, it is preferable to provide both the first welding flange 103 and the second welding flange 104 to achieve the connection with the vehicle frame through the two.

In this embodiment, the top of the first supporting plate 101 forms a first supporting surface 108, and two first supporting surfaces 108 are respectively disposed on two sides of the supporting arm 105 and are disposed in one-to-one correspondence with the two supporting arms 206. Meanwhile, as a preferred embodiment, the supporting arm 105 of the present embodiment is also integrally formed on the second plate 102, the guiding inclined surface 106 and the limiting surface 107 on each side of the supporting arm 105 are arranged in connection, and the supporting arm 105 and the second plate 102 together form the above-mentioned second supporting surface 109.

It should be noted that, when the suspension assembly is used for mounting the powertrain 6, and referring to fig. 6, the first supporting surface 108 of the present embodiment forms a supporting and limiting structure in the vehicle height direction, i.e. in the Z direction, and the second supporting surface 109, which is disposed at an angle to the first supporting surface 108, i.e. obliquely with respect to the first supporting surface 108, forms a supporting and limiting structure in the vehicle width direction, i.e. in the Y direction, based on the vehicle coordinate system. In addition, the limiting surfaces 107 respectively located at two side portions of the supporting arm 105 form a limiting structure along the length direction of the vehicle, i.e., the X direction.

In this way, the present embodiment can also utilize the limiting structures separately arranged in the three directions of X, Y, Z on the suspension mounting bracket 1 to realize the relative positioning between the suspension assembly 2 and the suspension mounting bracket 1 when the suspension assembly is assembled, so as to facilitate the assembling operation between the two.

In this embodiment, the first supporting plate 101 and the second supporting plate 102 are also made of the same steel plate, and at this time, the supporting arm 105 is also integrally formed on the second supporting plate 102, so that in the implementation, the same steel plate is used to form the first supporting surface 108 and the second supporting surface 109, which can also facilitate the design and manufacture of the suspension mounting bracket 1.

The suspension assembly 2 is still configured as shown in fig. 3 and 4, the two arms 206 are distributed on two opposite sides of the base 202 like lifting ears, the two arms 206 have the same bending angle relative to the body structure of the base 202, and in this embodiment, the second abutting surfaces 208 are distributed on each arm 206.

Moreover, similar to the above-mentioned inclined arrangement of the second support surface 109 with respect to the first support surface 108, the second abutment surface 208 on each arm 206 of the present embodiment is also inclined with respect to the first abutment surface 207 in the middle. In this way, the first contact surface 207 can be brought into contact with the second support surface 109, and the second contact surfaces 208 can be brought into contact with the first support surface 108 on the same side, thereby fixedly connecting the arm 206 and the first support surface 108.

In specific implementation, the base 202 of the present embodiment generally adopts a plate structure, and the support arms 206 on both sides and the below-described limiting plates, etc. can also be formed by bending the plate structure of the base 202. At this time, similar to the two support surfaces being located on the same steel plate, so that the first abutting surface 207 and the second abutting surface 208 are both formed on the base 202, the two abutting surfaces can also be formed by using the same steel plate, thereby facilitating the design and manufacture of the suspension assembly 2

In the present embodiment, each first support surface 108 is provided with a bracket connection hole 1010, and each support arm 206 having the second contact surface 208 is also provided with a base connection hole 209, and as a preferred embodiment, the connection member 4 is a connection bolt, and a nut 5 corresponding to the bracket connection hole 1010 is welded to the bottom of the first support plate 101. At this time, after each base connecting hole 209 is aligned with the support connecting hole 1010 on the same side, the connecting bolt passes through the base connecting hole 209 and the support connecting hole 1010 and then is connected with the nut 5 in a threaded manner, so that the suspension assembly 2 and the suspension mounting support 1 can be fixedly connected together.

Connecting bolt is adopted by connecting piece 4, and nut 5 is welded at the bottom of first supporting plate 101, so that connecting operation of connecting piece 4 can be greatly facilitated, and assembly efficiency of the suspension assembly can be improved when power assembly 6 is assembled.

In this embodiment, in addition to the base 202, the suspension assembly 2 also has a rubber main spring 201 connected to the base 202, and a connection socket connected to the rubber main spring 201, and as also shown in fig. 3 and 4, the connection socket specifically includes a connection plate 203 fixedly connected to the rubber main spring 201, and a mounting stud 204 fixedly connected to the connection plate 203.

In this case, the connection plate 203 and the base 202 are fixed together with the rubber main spring 201 by a conventional vulcanization method, and the mounting stud 204 is used for connecting the suspension assembly 2 and the power train 6. In a further preferred embodiment, the suspension cover 3 is fastened to the connection plate 204, and the positioning pin 205 is also fastened to the connection plate 203, and the positioning pin 205 and the mounting stud 204 also penetrate through the suspension cover 3.

The positioning pin 205 is arranged to provide a certain positioning function when being connected with the power assembly 6 according to needs, and meanwhile, the positioning pin 205 is arranged to mainly realize the positioning constraint of the suspension protective cover 3 so as to maintain the relative position between the suspension protective cover 3 and the suspension assembly 2. The structure of the suspended cover 3 of the present embodiment is shown in fig. 5, and a first through hole 302 and a second through hole 303 are provided thereon for the mounting stud 204 and the positioning pin 205 to pass through, respectively.

In addition, based on the suspension cover 3 being fastened to the suspension assembly 2, in the present embodiment, the two side walls 301 at two opposite sides of the suspension cover 3 are also designed to be longer, so as to enable the two side walls 301 to form more shielding for the suspension assembly 2 at the outer side as shown in fig. 1. Meanwhile, the base 202 of the present embodiment also has limiting plates arranged side by side with the side walls 301 of the suspension housing 3, and each limiting plate is provided with a limiting rubber block 2010.

In fig. 3 and 4, the position-limiting plates formed on the base 202 are wrapped in the position-limiting rubber blocks 2010, and in this embodiment, each position-limiting plate with the position-limiting rubber blocks 2010 is also located inside the suspended protective cover 3. After the power assembly 6 is mounted on the suspension assembly of the embodiment, in the driving process of the automobile, the vibration of the power assembly 6 causes the suspension cover 3 to deviate along with the connecting plate 203, and when the deviation amount is large, the side wall 301 can be in contact with the limiting rubber block 2010 to play a certain limiting role.

It should be noted that the limiting plates with the limiting rubber blocks 2010 shown in fig. 3 to 5 are disposed on two opposite sides of the suspension assembly 2, and the side walls 301 located on two opposite sides of the suspension protecting cover 3 are specifically distributed in the vehicle width direction, i.e. in the Y direction, and thus the design can also achieve a better limiting and buffering effect. However, instead of providing the side walls 301 and the limiting plates correspondingly arranged on the two sides in the Y direction, the side walls 301 and the limiting plates correspondingly arranged on only one side of the embodiment may be provided, or the side walls 301 and the limiting plates correspondingly arranged on the two opposite sides in the X direction may be provided. When the method is specifically implemented, the method can be selected according to design requirements.

In view of the fact that the limiting rubber blocks 2010 are in contact with the inner walls of the side walls 301 on the corresponding sides to perform buffering and limiting, in the present embodiment, preferably, the noise reduction protrusions 2011 capable of abutting against the side walls 301 are disposed on the limiting rubber blocks 2010 on each side. This it falls a plurality of bumps 2011 of making an uproar is interval arrangement, and it can adopt various shapes such as circular arch, square bulge, as long as can effectively reduce the area of contact between spacing gluey piece 2010 and the lateral wall 301, and can do benefit to when contacting by extruded air escape alright.

The specific use of the suspension assembly of the present embodiment can be seen from the description of the second embodiment below, and the suspension assembly of the present embodiment can utilize the position limitation of the second supporting surface 109 and the position limitation groove to facilitate the assembling operation when the suspension assembly 2 is assembled with the suspension mounting bracket 1 by the arrangement of the horizontal first supporting surface 108, the second supporting surface 109 arranged at an angle with the first supporting surface 108, and the first abutting surface 207, the support arm 206 and the position limitation groove formed by the two support arms 206 on the suspension assembly 2, so as to improve the convenience of the suspension assembling. Meanwhile, because only the supporting surfaces forming an angle with each other need to be arranged and the limiting groove is formed by the supporting arm 206, the structure of the suspension assembly can be simplified, and the manufacturing of the suspension assembly can be facilitated.

Example two

The present embodiment relates to a powertrain suspension system, which is suitable for a vehicle type with a longitudinal powertrain, and the powertrain suspension system includes several sets of suspension assemblies according to the first embodiment, meanwhile, as shown in fig. 6, the suspension assemblies in each set are also divided into two parts, and two parts of the suspension assemblies are respectively disposed on two opposite sides of the powertrain 6.

It should be noted that the number of suspension assemblies in each group should be at least two, and for example, when there are two suspension assemblies in each group, each portion may include one suspension assembly as shown in fig. 6, and the two portions, i.e., the two suspension assemblies, are distributed on two opposite sides of the power assembly 6. When the number of the suspension assemblies in each group is more than two, the requirement that all the suspension assemblies are as shown in fig. 6 is mainly met, a part of the suspension assemblies are respectively arranged on two opposite sides of the power assembly 6, and the specific number of the suspension assemblies of each part is selected according to the structural design of the power assembly 6 and the frame. Meanwhile, the suspension assemblies on the two sides can be symmetrically arranged, and can be asymmetrically arranged according to specific arrangement situations.

In the power assembly suspension system of the embodiment, by adopting the suspension assembly of the first embodiment, when the power assembly 6 and the frame are assembled, the suspension mounting bracket 1 in the suspension assembly is firstly fixedly connected to the frame, and the suspension assembly 2 with the suspension protecting cover 3 is connected to the power assembly 6. Then, the power assembly 6 is lowered by the spreader, and as the power assembly 6 is lowered, the two arms 206 of the suspension assembly 2 can be respectively contacted with the guide slopes 106 on the corresponding sides. At this time, with the continuous descending of the power assembly 6, under the guiding action of the guiding inclined plane 106, the supporting arm 105 enters the limiting groove formed between the two supporting arms 206, and the two supporting arms 206 enter the limiting surface 107, and the limiting surface 107 on the two sides realizes the limiting in the X direction,

meanwhile, the second abutting surface 208 abuts against the first supporting surface 108, so that the supporting arm 206 contacts with the first supporting surface 108, the first abutting surface 207 abuts against the second supporting surface 109, and the base connecting holes 209 at two sides are aligned with the corresponding support connecting holes 1010 respectively. Finally, the connecting piece 4, i.e. the connecting bolt, is passed through the aligned base connecting hole 209 and the bracket connecting hole 1010, and then is screwed and fastened with the welding nut 5.

The power assembly suspension system of this embodiment, through the suspension assembly among the applied embodiment one, the preparation of suspension assembly of can being convenient for also can promote the convenience of suspension assembly, improves power assembly's final assembly efficiency, and has fine practicality.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A suspension assembly comprising a suspension mounting bracket (1) and a suspension assembly (2), wherein:

the suspension mounting bracket (1) is provided with a horizontal first supporting surface (108) and a second supporting surface (109) which is arranged at an angle with the first supporting surface (108);

the suspension assembly (2) is provided with a base (202), the base (202) comprises a first abutting surface (207) and at least two support arms (206) which are arranged at an angle to the first abutting surface (207), and a limit groove is formed between every two adjacent support arms (206);

the support arm (206) is fixedly connected with the first support surface (108), the first abutting surface (207) abuts against the second support surface (109), and the second support surface (109) at least partially extends into the limiting groove.

2. The suspension assembly of claim 1, wherein:

the suspension mounting bracket (1) comprises a bracket main body (100), wherein a horizontal first support plate (101) and a second support plate (102) arranged at an angle to the first support plate (101) are respectively arranged on the bracket main body (100), the first support plate (101) forms a first support surface (108), the second support plate (102) is integrally formed with an extending support arm (105), the support arm (105) extends into the limit groove, and the support arm (105) and the second support plate (102) jointly form a second support surface (109).

3. The suspension assembly of claim 2, wherein:

a guide inclined plane (106) and a limiting plane (107) are formed on the side part of the support arm (105) close to the support arm (206);

the supporting arm (105) is guided into the limiting groove by the guide inclined plane (106), and the limiting surface (107) is in limiting fit with the corresponding supporting arm (206).

4. The suspension assembly of claim 2, wherein: the number of the support arms (206) is two.

5. The suspension assembly of claim 1, wherein:

the support arm (206) is fixedly connected with the first support surface (108) through a connecting piece (4).

6. The suspension assembly of claim 5, wherein:

a bracket connecting hole (1010) is formed in the first supporting surface (108), and a base connecting hole (209) is formed in the supporting arm (206) which is connected with the first supporting surface (108);

the connecting piece (4) adopts a connecting bolt, and the connecting bolt penetrates through the base connecting hole (209) and the support connecting hole (1010) and then is connected with the nut (5) in a threaded manner.

7. The suspension assembly of any of claims 1-6, wherein:

the suspension assembly (2) is provided with a rubber main spring (201) connected with the base (202), and a connecting seat connected with the rubber main spring (201);

the connecting seat comprises a connecting plate (203) fixedly connected with the rubber main spring (201) and a mounting stud (204) fixedly connected on the connecting plate (203).

8. The suspension assembly of claim 7, wherein:

a suspension protective cover (3) is buckled on the connecting plate (203), and the mounting stud (204) penetrates through the suspension protective cover (3);

the base (202) have with the limiting plate that at least one lateral wall (301) of suspension protecting cover (3) were arranged side by side, be equipped with spacing gluey piece (2010) on the limiting plate.

9. The suspension assembly of claim 8, wherein:

a positioning pin (205) is fixedly connected to the connecting plate (203), and the positioning pin (205) penetrates through the suspension protective cover (3);

the limiting rubber block (2010) is provided with a noise reduction bulge (2011) which can be abutted against the side wall (301) of the suspension protective cover (3).

10. A powertrain suspension system, characterized by: comprising two sets of suspension assemblies according to any one of claims 1 to 9, each set comprising a plurality of said suspension assemblies, one set being provided on each of two opposite sides of the power assembly (6).

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