CN117584722A - Bush suspension assembly and vehicle - Google Patents

Abstract

The application relates to the technical field of automobiles and provides a bushing suspension assembly and a vehicle, wherein the bushing suspension assembly comprises a bracket and a bushing component; the bracket is provided with a mounting hole and is used for being detachably connected with the power assembly; the bushing component is arranged in the mounting hole; the bushing assembly comprises a core body and an elastic body, wherein the protruding structure of the outer surface of the core body comprises a first protruding part and a second protruding part which are oppositely arranged, and a third protruding part and a fourth protruding part which are oppositely arranged; the elastic body is provided with a connecting hole, the inner surface of the connecting hole is connected with the outer surface of the core body, and a first gap, a second gap, a third gap and a fourth gap are respectively formed among the first bulge part, the second bulge part, the third bulge part and the fourth bulge part and the inner surface of the connecting hole; the core body is used for being detachably connected with a longitudinal beam of a frame of the commercial vehicle; the frame of long longeron structure on the commercial car has fully been considered to this application, has satisfied the demand of arranging of commercial car, and has realized the reliable limit function of a plurality of directions.

Description

Bush suspension assembly and vehicle

Technical Field

The application relates to the technical field of automobiles, in particular to a bushing suspension assembly and a vehicle.

Background

The suspension is used for reducing and controlling the transmission of engine vibration and playing a role in supporting, and can effectively limit the maximum displacement of the power assembly under the conditions of transient working conditions such as engine starting, flameout, acceleration and deceleration of an automobile and various interference forces (such as ground bump), so that the power assembly is prevented from colliding with peripheral parts, and the normal work of the power assembly is ensured, namely, the suspension needs to have a good limiting effect.

In the related art, for commercial vehicles with large weight of the power assembly, the suspension is easy to deform or break and fail greatly, and reliable limiting effect is difficult to provide.

Disclosure of Invention

Accordingly, it is necessary to provide a bushing suspension assembly and a vehicle, which solve the problem that the suspension is easy to fail and difficult to realize the limiting function for the commercial vehicle with a large weight of the power assembly in the related art.

An aspect of an embodiment of the present application provides a bushing suspension assembly for a commercial vehicle, the bushing suspension assembly comprising: a bracket and bushing assembly; the bracket is provided with a mounting hole arranged along a first direction and is used for being detachably connected with the power assembly; the bushing assembly is arranged in the mounting hole; the bushing assembly comprises a core body and an elastomer, wherein the outer surface of the elastomer is connected with the inner surface of the mounting hole; the outer surface of the core body is provided with a convex structure extending along a first direction; the convex structure comprises a first convex part and a second convex part which are oppositely arranged along a second direction, and a third convex part and a fourth convex part which are oppositely arranged along a third direction; the elastic body is provided with a connecting hole arranged along a first direction, the inner surface of the connecting hole is connected with the outer surface of the core body, and a first gap, a second gap, a third gap and a fourth gap are respectively formed among the first bulge, the second bulge, the third bulge and the fourth bulge and the inner surface of the connecting hole; the core body is used for being detachably connected with a longitudinal beam of a frame of the commercial vehicle; any two of the first direction, the second direction and the third direction are perpendicular to each other.

In one embodiment, the bushing suspension assembly further includes a stop block; one end of the elastic body along the first direction is provided with an embedded part, and the embedded part is embedded in the limiting block; and a fifth gap is formed between the end surface of one side of the core body, which is close to the limiting block, and the limiting block.

In one embodiment, the bushing assembly further comprises a sleeve; the sleeve is sleeved on the elastic body, the inner surface of the sleeve is connected with the outer surface of the elastic body, and the outer surface of the sleeve is connected with the inner surface of the mounting hole.

In one embodiment, the inner surface of the connecting hole is concavely provided with a first groove matched with the first protruding part, a second groove matched with the second protruding part, a third groove matched with the third protruding part and a fourth groove matched with the fourth protruding part; the first protruding portion is located in the first groove, the second protruding portion is located in the second groove, the third protruding portion is located in the third groove, and the fourth protruding portion is located in the fourth groove.

In one embodiment, the first protrusion forms the first gap with the bottom of the first groove, the second protrusion forms the second gap with the bottom of the second groove, the third protrusion forms the third gap with the bottom of the third groove, and the fourth protrusion forms the fourth gap with the bottom of the fourth groove.

In one embodiment, the bushing suspension assembly further includes a first fastening component; the core is used for being connected with the longitudinal beam through the first fastening component.

In one embodiment, the first fastening assembly includes a nut, a first washer, a second washer, and a first bolt; the core body is provided with through holes which are arranged along the first direction, the core body is positioned between the first gasket and the second gasket, and the first bolt sequentially passes through the through holes on the longitudinal beam, the second gasket, the through holes, the first gasket and the nuts.

In one embodiment, the bushing suspension assembly further includes a second fastening component; the bracket is used for being connected with the power assembly through the second fastening component.

In one embodiment, the second fastening assembly includes a plurality of second bolts, a plurality of fixing holes are formed in the support, the plurality of fixing holes are arranged in one-to-one correspondence with the plurality of second bolts, and the second bolts are used for penetrating through the corresponding fixing holes and are connected with the power assembly.

Another aspect of the embodiments of the present application further provides a vehicle, including: a powertrain, a frame, and a bushing suspension assembly as described above; the power assembly is detachably connected with the support of the bushing suspension assembly, and the longitudinal beam of the frame is detachably connected with the core of the bushing suspension assembly.

The bushing suspension assembly and the vehicle fully consider the frame of the long longitudinal beam structure on the commercial vehicle, meet the arrangement requirement of the commercial vehicle, and realize the reliable limiting function in multiple directions; in the in-service use, the core is located the connecting hole of elastomer, and the elastomer is equivalent to the cover and locates on the core promptly, and protruding structure extends along first direction and set up to increased the area of contact between the surface of core and the internal surface of elastomer, promptly through the surface area of make full use of core, and under the deformation effect of elastomer, reduced the crushing phenomenon of core, promoted the reliability of bush suspension assembly overall structure.

The first direction corresponds to the left-right direction of the commercial vehicle, the second direction corresponds to the up-down direction of the commercial vehicle, the third direction corresponds to the front-back direction of the commercial vehicle, the inner surface of the connecting hole plays an upper limit role on the first protruding part, the size of the first gap is an upper limit size, the inner surface of the connecting hole plays a lower limit role on the second protruding part, the size of the second gap is a lower limit size, the inner surface of the connecting hole plays a front limit role on the third protruding part, the size of the third gap is a front limit size, the inner surface of the connecting hole plays a rear limit role on the fourth protruding part, and the size of the fourth gap is a rear limit size, so that different arrangement requirements of the commercial vehicle can be met by adjusting all limit sizes; meanwhile, under the condition of reducing core crushing, stable limiting effect can be formed between the core and the elastic body from the upper direction, the lower direction, the front direction and the rear direction, the core is connected with the longitudinal beam, the elastic body is connected with the power assembly through the support, and further the longitudinal beam is met to realize the limiting effect of the longitudinal beam on the power assembly from the upper direction, the lower direction, the front direction and the rear direction, and the reliability of the limiting function of the bushing suspension assembly in multiple directions is improved.

Drawings

FIG. 1 is a schematic illustration of a bushing suspension assembly according to one embodiment of the present application.

FIG. 2 is a schematic exploded view of a bushing suspension assembly according to one embodiment of the present application.

FIG. 3 is a second schematic view of a bushing suspension assembly according to one embodiment of the present disclosure.

Fig. 4 is an exploded view of a bushing suspension assembly according to one embodiment of the present application.

Reference numerals illustrate:

100. a bracket; 110. a mounting hole; 120. a fixing hole;

200. a bushing assembly; 210. a core; 211. a first projection; 212. a second projection; 213. a third projection; 214. a fourth protrusion; 215. a through hole; 220. an elastomer; 221. a connection hole; 222. an embedding part; 230. a sleeve;

300. a limiting block;

400. a first fastening assembly; 410. a nut; 420. a first gasket; 430. a second gasket; 440. a first bolt;

500. a second fastening assembly; 510. a second bolt;

f1, a first direction;

f2, a second direction;

f3, a third direction;

l1, a first gap;

l2, a second gap;

l3, third gap;

l4, fourth gap;

l5, fifth gap.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If 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," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1 and 2, fig. 1 shows one of the structural schematic diagrams of the bushing suspension assembly in an embodiment of the present application, fig. 2 shows an exploded structural schematic diagram of the bushing suspension assembly in an embodiment of the present application, and fig. 3 shows the second structural schematic diagram of the bushing suspension assembly in an embodiment of the present application; the bushing suspension assembly provided in an embodiment of the present application is applied to a commercial vehicle, and includes a bracket 100 and a bushing assembly 200.

The bracket 100 has a mounting hole 110 arranged in a first direction, and the bracket 100 is used for detachably connecting with the power assembly; the bushing assembly 200 is disposed within the mounting hole 110; the bushing assembly 200 includes a core 210 and an elastic body 220, wherein an outer surface of the elastic body 220 is connected with an inner surface of the mounting hole 110, and the outer surface of the core 210 has a protruding structure extending along a first direction F1; the protruding structure includes a first protruding portion 211 and a second protruding portion 212 disposed opposite to each other along the second direction F2, and a third protruding portion 213 and a fourth protruding portion 214 disposed opposite to each other along the third direction F3; the elastic body 220 has a connection hole 221 disposed along a first direction, the inner surface of the connection hole 221 is connected with the outer surface of the core 210, that is, the core 210 is located in the connection hole 221, and a first gap L1, a second gap L2, a third gap L3, and a fourth gap L4 are formed between the first protrusion 211, the second protrusion 212, the third protrusion 213, and the fourth protrusion 214 and the inner surface of the connection hole 221, respectively, and it is understood that the first gap L1 is the minimum gap between the edge of the first protrusion 211 and the inner surface of the connection hole 221, and similarly, the second gap L2 is the minimum gap between the edge of the second protrusion 212 and the inner surface of the connection hole 221, and the third gap L1 is the minimum gap between the edge of the third protrusion 213 and the inner surface of the connection hole 221, and the fourth gap L1 is the minimum gap between the edge of the fourth protrusion 214 and the inner surface of the connection hole 221.

The core 210 is detachably connected with a longitudinal beam of a frame of the commercial vehicle; any two of the first direction F1, the second direction F2 and the third direction F3 are perpendicular to each other.

Specifically, the bushing suspension assembly shown in the embodiment fully considers the frame of the long longitudinal beam structure on the commercial vehicle, meets the arrangement requirement of the commercial vehicle, and realizes the reliable limiting function in multiple directions; in the actual use process, the core 210 is located in the connecting hole 221 of the elastic body 220, that is, the elastic body 220 is correspondingly sleeved on the core 210, and the protruding structure extends along the first direction F1, so that the contact area between the outer surface of the core 210 and the inner surface of the elastic body 220 is increased, that is, the surface area of the core 210 is fully utilized, and under the deformation action of the elastic body 220, the crushing phenomenon of the core 210 is reduced, and the reliability of the integral structure of the bushing suspension assembly is improved.

The first direction F1 corresponds to the left-right direction of the commercial vehicle, the second direction F2 corresponds to the up-down direction of the commercial vehicle, the third direction F3 corresponds to the front-back direction of the commercial vehicle, the inner surface of the connecting hole 221 plays an upper limit role on the first protruding portion 211, the size of the first gap L1 is an upper limit size, the inner surface of the connecting hole 221 plays a lower limit role on the second protruding portion 212, the size of the second gap L2 is a lower limit size, the inner surface of the connecting hole 221 plays a front limit role on the third protruding portion 213, the size of the third gap L3 is a front limit size, the inner surface of the connecting hole 221 plays a rear limit role on the fourth protruding portion 214, and the size of the fourth gap L4 is a rear limit size, so that different arrangement requirements of the commercial vehicle can be met by adjusting each limit size; meanwhile, under the condition of reducing the crushing of the core 210, a stable limiting effect can be formed between the core 210 and the elastic body 220 from the upper, lower, front and rear directions, the core 210 is connected with the longitudinal beam, the elastic body 220 is connected with the power assembly through the support 100, and further the limiting effect of the longitudinal beam on the power assembly in the upper, lower, front and rear directions is met, and the reliability of the limiting function of the bushing suspension assembly in multiple directions is improved.

The inventor of this application discovers at the in-process that realizes this application, the suspension on the passenger car is installed on the sub vehicle frame, and to commercial car, and not possess the sub vehicle frame, can't be with the suspension on the passenger car with commercial car's frame integration, and commercial car power assembly weight is great, the operating mode is comparatively abominable, the reliability of suspension is lower, the suspension bush assembly of this application is connected with the power assembly through support 100, be connected with the longeron of frame through core 210, the integration of suspension bush assembly and commercial car's frame has been realized, contact area between the surface of core 210 and the internal surface of elastomer 220 is great simultaneously, in order to promote bearing capacity, thereby adapt to the heavier power assembly of commercial car and abominable operating mode, the crushing phenomenon of core 210 has been reduced, holistic reliability has been promoted.

Wherein, the core 210 may be a vulcanized inner core, the elastomer 220 may be a rubber body, and the rubber body is vulcanized and bonded with the outer surface of the vulcanized inner core through a vulcanization process; since the outer surface of the vulcanization core is vulcanized with a certain thickness of rubber, the first gap L1 is actually a gap between the rubber on the first projection 211 and the inner surface of the rubber, and similarly, the second gap L2 is actually a gap between the rubber on the second projection 212 and the inner surface of the rubber, the third gap L3 is actually a gap between the rubber on the third projection 213 and the inner surface of the rubber, and the fourth gap L4 is actually a gap between the rubber on the fourth projection 214 and the inner surface of the rubber.

It should be noted that, the first direction F1 is a direction perpendicular to the paper surface in fig. 1, and the first direction F1 is a direction from left to right or from right to left in fig. 3; the second direction F2 is a top-to-bottom or bottom-to-top direction in fig. 1, and the third direction F3 is a left-to-right or right-to-left direction in fig. 1.

As shown in connection with fig. 2 and 3, in some embodiments, the bushing suspension assembly shown in this embodiment further includes a stop block 300; one end of the elastic body 220 along the first direction is provided with an embedded part 222, and the embedded part 222 is embedded in the limiting block 300; a fifth gap L5 is formed between the end surface of the core 210 near the side of the limiting block 300 and the limiting block 300.

Specifically, the stopper 300 is provided with a concave portion adapted to the embedded portion 222, and the embedded portion 222 extends into the concave portion in a pressing manner along the first direction F1, so that the stopper 300 is assembled; as described above, the first direction F1 corresponds to the left-right direction of the commercial vehicle, and the dimension of the fifth gap L5 is the left limit dimension or the right limit dimension, where the dimension of the fifth gap L5 is equal to the maximum amount of play between the core 210 and the elastic body 220 along the first direction, and the two bushing suspension assemblies are symmetrically arranged in the left-right direction, so that both the left side and the right side can be limited, and the limit dimensions are equal.

The limiting block 300 may be a rubber bump.

As shown in connection with fig. 1 and 2, in some embodiments, the bushing assembly 200 shown in this embodiment further includes a sleeve 230; the sleeve 230 is sleeved on the elastic body 220, the inner surface of the sleeve 230 is connected with the outer surface of the elastic body 220, and the outer surface of the sleeve 230 is connected with the inner surface of the mounting hole 110.

Specifically, the axis of the core 210, the axis of the elastic body 220 and the axis of the sleeve 230 are coincident and arranged along the first direction F1, after the core 210 and the elastic body 220 are bonded by a vulcanization process, the inner surface of the sleeve 230 is connected with the outer surface of the elastic body 220 by the vulcanization process, so that the assembly of the bushing assembly 200 is completed, after that, the bushing assembly 200 is press-fitted in the mounting hole 110, the outer surface of the sleeve 230 is in interference connection with the inner surface of the mounting hole 110, and the stopper 300 is connected with the elastic body 220 by pressing.

As shown in fig. 1 and 2, in some embodiments, the inner surface of the connecting hole 221 in this embodiment is concavely provided with a first groove adapted to the first protrusion 211, a second groove adapted to the second protrusion 212, a third groove adapted to the third protrusion 213, and a fourth groove adapted to the fourth protrusion 214; the first protrusion 211 is located in the first groove, the second protrusion 212 is located in the second groove, the third protrusion 213 is located in the third groove, and the fourth protrusion 214 is located in the fourth groove.

Specifically, by providing the first groove, the second groove, the third groove, and the fourth groove, the contact area between the core 210 and the elastic body 220 is further increased, and thus the crushing phenomenon of the core 210 is reduced; meanwhile, the side wall of the first groove, the side wall of the second groove, the side wall of the third groove and the side wall of the fourth groove can play a role in rotation limiting, so that relative rotation between the core 210 and the elastic body 220 around an axis is reduced, and the reliability of connection between the core 210 and the elastic body 220 is further improved.

As shown in connection with fig. 1, in some embodiments, the first protrusion 211 forms a first gap L1 with the bottom of the first groove, the second protrusion 212 forms a second gap L2 with the bottom of the second groove, the third protrusion 213 forms a third gap L3 with the bottom of the third groove, and the fourth protrusion 214 forms a fourth gap L4 with the bottom of the fourth groove.

Specifically, the first gap L1 has a size of 4mm, the second gap L2 has a size of 4mm, the third gap L3 has a size of 3mm, and the fourth gap L4 has a size of 3mm.

Referring to fig. 4, fig. 4 illustrates an exploded view of a bushing suspension assembly in an embodiment of the present application, which in some embodiments further includes a first fastening component 400; the core 210 is used for connection with stringers by means of a first fastening assembly 400.

Specifically, the core 210 is detachably connected to the stringers by the first fastening assembly 400.

Referring to fig. 4, in some embodiments, the first fastening assembly 400 of the present embodiment includes a nut 410, a first washer 420, a second washer 430, and a first bolt 440; the core 210 is provided with through holes 215 arranged along the first direction, the core 210 is positioned between the first gasket 420 and the second gasket 430, and the first bolt 440 sequentially passes through the through holes on the longitudinal beam, the second gasket 430, the through holes 215 and the first gasket 420 and is connected with the nut.

Specifically, the first gasket 420, which is used as an anti-crushing gasket and contacts with the end surface of one end of the core 210, fully uses the area of the end surface of the core 210, and reduces the crushing phenomenon of the core 210 during the fastening process of the first bolt 440 and the nut 410; the limiting block 300 is located at the other end of the core 210, the second gasket 430 is used as a lateral limiting gasket and is in contact with the end face of the other end of the core 210, when the core 210 and the elastic body 220 generate axial movement, the elastic body 220 and the limiting block 300 move synchronously, the second gasket 430 plays a role in limiting and stopping the limiting block 300, the fifth gap L5 is also equivalent to a gap between the limiting block 300 and the second gasket 430, limiting can be realized by arranging two bushing suspension assemblies in bilateral symmetry, the two sides of the bushing suspension assemblies are symmetrical, the size of the fifth gap L5 is equal, and the universality of bushing suspension on the two sides is improved.

Wherein the fifth gap L5 has a size of 2.5mm.

As shown in connection with fig. 4, in some embodiments, the bushing suspension assembly shown in this embodiment further includes a second fastening component 500; the bracket 100 is used for connection with the powertrain through a second fastening assembly 500.

Specifically, the bracket 100 is detachably connected to the power assembly through the second fastening assembly 500.

Referring to fig. 4, in some embodiments, the second fastening assembly 500 shown in this embodiment includes a plurality of second bolts 510, a plurality of fixing holes 120 are provided on the bracket 100, the plurality of fixing holes 120 are disposed in one-to-one correspondence with the plurality of second bolts 510, and the second bolts 510 are used to pass through the corresponding fixing holes 120 and connect with the power assembly.

Specifically, hole position distribution of the fixing holes 120 on the bracket 100 is determined according to a connection surface on the actual power assembly, four fixing holes 120 are uniformly distributed in fig. 4, and the number and the spacing of the fixing holes 120 can be flexibly set according to arrangement requirements; reinforcing ribs may be provided around the fixing holes 120 for enhancing structural strength of the bracket 100.

Based on the same inventive concept, the present application also provides a vehicle including: a powertrain, a frame, and a bushing suspension assembly as described above; the power assembly is detachably connected with a bracket of the bushing suspension assembly, and a longitudinal beam of the frame is detachably connected with a core of the bushing suspension assembly.

Since the vehicle adopts the bushing suspension assembly shown in the above embodiment, the specific structure of the bushing suspension assembly refers to the above embodiment, and since the vehicle adopts all the technical solutions of all the above embodiments, the vehicle has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be described in detail herein.

The vehicle can be a commercial vehicle, two bushing suspension assemblies are symmetrically arranged left and right of the commercial vehicle, and the respective limiting of the left side and the right side is realized, namely, the bushing suspension assembly on the commercial vehicle can realize the multidirectional limiting function in six directions of up, down, front, back, left and right.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A bushing suspension assembly for use in a commercial vehicle, the bushing suspension assembly comprising:

the support is provided with a mounting hole arranged along a first direction and is used for being detachably connected with the power assembly; and

The bushing assembly is arranged in the mounting hole; the bushing assembly comprises a core body and an elastomer, wherein the outer surface of the elastomer is connected with the inner surface of the mounting hole; the outer surface of the core body is provided with a convex structure extending along a first direction; the convex structure comprises a first convex part and a second convex part which are oppositely arranged along a second direction, and a third convex part and a fourth convex part which are oppositely arranged along a third direction; the elastic body is provided with a connecting hole arranged along a first direction, the inner surface of the connecting hole is connected with the outer surface of the core body, and a first gap, a second gap, a third gap and a fourth gap are respectively formed among the first bulge, the second bulge, the third bulge and the fourth bulge and the inner surface of the connecting hole; the core body is used for being detachably connected with a longitudinal beam of a frame of the commercial vehicle;

any two of the first direction, the second direction and the third direction are perpendicular to each other.

2. The bushing suspension assembly of claim 1 wherein,

the bushing suspension assembly further comprises a limiting block;

one end of the elastic body along the first direction is provided with an embedded part, and the embedded part is embedded in the limiting block; and a fifth gap is formed between the end surface of one side of the core body, which is close to the limiting block, and the limiting block.

3. The bushing suspension assembly of claim 1 wherein,

the bushing assembly further includes a sleeve;

the sleeve is sleeved on the elastic body, the inner surface of the sleeve is connected with the outer surface of the elastic body, and the outer surface of the sleeve is connected with the inner surface of the mounting hole.

4. The bushing suspension assembly of claim 1 wherein,

the inner surface of the connecting hole is concavely provided with a first groove matched with the first protruding part, a second groove matched with the second protruding part, a third groove matched with the third protruding part and a fourth groove matched with the fourth protruding part;

the first protruding portion is located in the first groove, the second protruding portion is located in the second groove, the third protruding portion is located in the third groove, and the fourth protruding portion is located in the fourth groove.

5. The bushing suspension assembly of claim 4 wherein,

the first gap is formed between the first protruding portion and the bottom of the first groove, the second gap is formed between the second protruding portion and the bottom of the second groove, the third gap is formed between the third protruding portion and the bottom of the third groove, and the fourth gap is formed between the fourth protruding portion and the bottom of the fourth groove.

6. The bushing suspension assembly of any of claims 1-5 wherein,

the bushing suspension assembly further includes a first fastening component;

the core is used for being connected with the longitudinal beam through the first fastening component.

7. The bushing suspension assembly of claim 6 wherein,

the first fastening assembly comprises a nut, a first gasket, a second gasket and a first bolt;

the core body is provided with through holes which are arranged along the first direction, the core body is positioned between the first gasket and the second gasket, and the first bolt sequentially passes through the through holes on the longitudinal beam, the second gasket, the through holes, the first gasket and the nuts.

8. The bushing suspension assembly of any of claims 1-5 wherein,

the bushing suspension assembly further includes a second fastening component;

the bracket is used for being connected with the power assembly through the second fastening component.

9. The bushing suspension assembly of claim 8 wherein,

the second fastening assembly comprises a plurality of second bolts, a plurality of fixing holes are formed in the support, the fixing holes and the second bolts are arranged in one-to-one correspondence, and the second bolts are used for penetrating through the corresponding fixing holes and are connected with the power assembly.

10. A vehicle, characterized by comprising: a powertrain, a frame, and a bushing suspension assembly as defined in any one of claims 1 to 9;

the power assembly is detachably connected with the support of the bushing suspension assembly, and the longitudinal beam of the frame is detachably connected with the core of the bushing suspension assembly.