CN209870091U - Engine rear suspension assembly - Google Patents

Abstract

The utility model provides a suspension assembly behind engine belongs to auto-parts technical field. It has solved the heavy, short-lived scheduling problem of current engine rear overhang assembly weight. This suspension assembly behind engine includes support and bush, the bush includes the overcoat, endotheca and rubber intermediate level, overcoat and endotheca all are the tube-shape and overcoat cover outside the endotheca, the vulcanization of rubber intermediate level links firmly between overcoat and endotheca, the support includes backup pad and support frame, the top of the vertical setting of backup pad and backup pad has the planker that is 90 turns over to backup pad one side and turns over, the support frame has the side of base and two vertical settings, the base welds in the planker top surface, the top surface of side has recessed arcwall face, the overcoat welds with the arcwall face mutually, the backup pad welding has the strengthening rib that supports in the planker, the rubber intermediate level has the through-hole that a plurality of axial runs through, the both ends of. The utility model has the advantages of light weight, good vibration damping effect, long service life and the like.

Description

Engine rear suspension assembly

Technical Field

The utility model belongs to the technical field of auto-parts, a suspension assembly is related to, in particular to suspension assembly behind engine.

Background

The engine rear suspension assembly is fixed in the auxiliary frame, and the design space of the rear suspension assembly is insufficient due to the volume, the quality and the performance of the auxiliary frame and the influence of auxiliary accessories, so that a reasonable rear suspension assembly structure is designed under the limited space condition to meet various working condition requirements.

For example, chinese patent literature discloses an engine rear suspension assembly [ application No.: 201821128385. X; authorization notice number: CN208760410U ], which comprises a rear suspension assembly support, an inner frame and an outer frame, wherein the inner frame and the outer frame are vulcanized by rubber to form a rubber body, the inner frame and the outer frame are connected into an integral cushion by the rubber body, the outer frame is assembled and connected with the rear suspension assembly support, reinforcing ribs are arranged along the side edges of the outer frame, and the reinforcing ribs are opposite to the rear suspension assembly support on the outer frame.

The suspension assembly passes through the setting of inner frame, exoskeleton and the rubber body behind foretell engine, can improve the vibration isolation performance, but its overall structure weight is heavier, unsatisfied current lightweight design requirement, vulcanizes the rubber body resistance characteristic that links firmly between inner frame and exoskeleton in addition and optimizes inadequately, and the damping effect needs promote, and after the bolt passed the inner frame, when the rubber body pressurized deformation, the bolt head easily bumped and decreased the rubber body, has reduced life.

Disclosure of Invention

The utility model aims at providing an engine mounting assembly that light in weight, damping are effectual and long service life to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: an engine rear suspension assembly comprises a bracket and a bushing, wherein the bushing comprises an outer sleeve, an inner sleeve and a rubber middle layer, the outer sleeve and the inner sleeve are both cylindrical, the outer sleeve is sleeved outside the inner sleeve, the rubber middle layer is vulcanized and fixedly connected between the outer sleeve and the inner sleeve, it is characterized in that the bracket comprises a supporting plate and a supporting frame, the supporting plate is vertically arranged, the top of the supporting plate is provided with a planker which is turned over to one side of the supporting plate by 90 degrees, the supporting frame is provided with a bottom edge and two vertically arranged side edges, the bottom edge is welded on the top surface of the dragging plate, the top surface of the side edge is provided with a concave arc surface, the outer sleeve is welded with the arc surface, the supporting plate is welded with a reinforcing rib supported on the carriage, the rubber intermediate layer is provided with a plurality of through holes which axially penetrate through, and two ends of the inner sleeve respectively exceed two end faces of the rubber intermediate layer.

In the above engine rear suspension assembly, the support plate has a left connecting plate extending to the left lower side and a right connecting plate extending to the right lower side, the extending length of the left connecting plate is longer than that of the right connecting plate, the middle portion of the support plate has a middle connecting hole, the end portion of the left connecting plate has a left connecting hole, and the end portion of the right connecting plate has a right connecting hole.

In the engine rear suspension assembly, the left connecting plate is an arc-shaped plate, and the inner side edge of the left connecting plate is transited to the inner side edge of the right connecting plate through an arc.

In the engine rear suspension assembly, the reinforcing ribs include a left reinforcing rib and a right reinforcing rib which are in a triangular plate shape, the size of the left reinforcing rib is smaller than that of the right reinforcing rib, the inner side edge of the left reinforcing rib is welded with the supporting plate, the top edge of the left reinforcing rib is welded with the carriage, the inner side edge of the right reinforcing rib is welded with the supporting plate, the top edge of the right reinforcing rib is welded with the carriage, and the left reinforcing rib and the right reinforcing rib are both outwards inclined to form an 'eight' shape when viewed in the axial direction of the inner sleeve. Structural design is reasonable like this, and left strengthening rib and right strengthening rib have improved structural strength, and the bearing capacity of planker is good.

In foretell suspension assembly behind engine, through-hole quantity be two, one of them through-hole cross-section is trapezoidal form, another through-hole cross-section is "people" word form, the through-hole that is trapezoidal form is located the side top in rubber sleeve intermediate level, the through-hole that is "people" word form is located the side below in rubber sleeve intermediate level, two through-holes have same symmetrical line and the contained angle of symmetrical line and horizontal plane is 19. Thus, the resistance characteristic of the rubber intermediate layer is optimized, and an ideal vibration reduction effect is ensured.

In the engine rear suspension assembly, the two ends of the rubber middle layer are provided with extension parts which extend axially and are vulcanized and fixedly connected with the outer wall of the inner sleeve, the extension parts are provided with convex rings protruding radially, and the end faces of the convex rings are flush with the end faces of the inner sleeve. The extension portion increases the connection area of the rubber middle layer and the inner sleeve, so that the rubber middle layer and the inner sleeve are firmly connected, the convex ring increases the contact area, the thread head or the gasket can be contacted, the buffering and vibration damping effects are achieved, looseness is avoided, and the service life is prolonged.

Compared with the prior art, the engine rear suspension assembly is light in weight, high in structural strength, good in bearing capacity, good in vibration reduction effect and long in service life, and meets the lightweight design requirement.

Drawings

FIG. 1 is a schematic front view of the engine rear suspension assembly.

FIG. 2 is a schematic structural side view of the engine rear suspension assembly.

FIG. 3 is a schematic bottom view of the engine rear suspension assembly configuration.

Fig. 4 is an enlarged view of the structure of fig. 2 at circle a.

In the figure, 1, a bracket; 11. a support plate; 111. a carriage; 112. a left connecting plate; 113. a right connecting plate; 114. a middle connecting hole; 115. a left connection hole; 116. a right connection hole; 117. a circular arc; 12. a support frame; 121. a bottom edge; 122. a side edge; 2. a bushing; 21. a jacket; 22. an inner sleeve; 23. a rubber intermediate layer; 231. a through hole; 232. an extension part; 233. a convex ring; 3. a left stiffener; 4. a right reinforcing rib; a. and (4) an included angle.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the present engine rear suspension assembly includes a bracket 1 and a bushing 2, the bushing 2 includes an outer casing 21, the support comprises an inner sleeve 22 and a rubber middle layer 23, wherein the outer sleeve 21 and the inner sleeve 22 are both cylindrical, the outer sleeve 21 is sleeved outside the inner sleeve 22, the rubber middle layer 23 is vulcanized and fixedly connected between the outer sleeve 21 and the inner sleeve 22, the support 1 comprises a support plate 11 and a support frame 12, the support plate 11 is vertically arranged, the top of the support plate 11 is provided with a carriage 111 which is turned over to 90 degrees towards one side of the support plate 11, the support frame 12 is provided with a bottom edge 121 and two vertically arranged side edges 122, the bottom edge 121 is welded on the top surface of the carriage 111, the top surface of the side edge 122 is provided with a concave arc-shaped surface, the outer sleeve 21 is welded with the arc-shaped surface, the support plate 11 is welded with reinforcing ribs supported on the carriage 111.

This suspension assembly passes through backup pad 11 behind engine, the setting of support frame 12, under the prerequisite that satisfies structural strength, weight has been alleviateed, satisfy lightweight designing requirement, structural strength has been strengthened to the strengthening rib, the bearing capacity of planker 111 has been improved, the rigidity of rubber intermediate layer 23 has been weakened in setting up of through-hole 231, the buffering shock attenuation effect of rubber intermediate layer 23 has been improved, the tip of endotheca 22 supplies the contact of bolt head, when rubber intermediate layer 23 pressurized deformation, the bolt head can not bump the tip of losing rubber intermediate layer 23 yet, avoid wearing and tearing, service life has been prolonged.

In more detail, the supporting plate 11 is provided with a left connecting plate 112 extending towards the left lower part and a right connecting plate 113 extending towards the right lower part, the extending length of the left connecting plate 112 is larger than that of the right connecting plate 113, the middle part of the supporting plate 11 is provided with a middle connecting hole 114, the end part of the left connecting plate 112 is provided with a left connecting hole 115, and the end part of the right connecting plate 113 is provided with a right connecting hole 116, so that the space is fully utilized, the positions of the middle connecting hole 114, the left connecting hole 115 and the right connecting hole 116 are not on the same straight line, stress points are staggered, and the firmness of connection is improved; left connecting plate 112 is the arc, and the inboard side of left connecting plate 112 passes through the inboard side that circular arc 117 passes through to right connecting plate 113, and left connecting plate 112 and right connecting plate 113's structural strength is high like this, and anti load impact ability is good, and stress concentration is also avoided in the transition of circular arc 117, avoids producing the crack between left connecting plate 112 and the right connecting plate 113, has prolonged life.

For high structural strength and good bearing capacity, the reinforcing ribs comprise a left reinforcing rib 3 and a right reinforcing rib 4 which are in a triangular plate shape, the size of the left reinforcing rib 3 is smaller than that of the right reinforcing rib 4, the inner side edge of the left reinforcing rib 3 is welded with the support plate 11, the top edge of the left reinforcing rib 3 is welded with the carriage 111, the inner side edge of the right reinforcing rib 4 is welded with the support plate 11, the top edge of the right reinforcing rib 4 is welded with the carriage 111, and the left reinforcing rib 3 and the right reinforcing rib 4 are both outwards inclined to form an 'eight' shape when viewed in the axial direction of the inner sleeve 22; in order to achieve a good vibration reduction effect, the number of the through holes 231 is two in the embodiment, wherein the cross section of one through hole 231 is in a trapezoid shape, the cross section of the other through hole 231 is in a herringbone shape, the trapezoid-shaped through hole 231 is located above the side of the middle layer of the rubber sleeve, the herringbone-shaped through hole 231 is located below the side of the middle layer of the rubber sleeve, the two through holes 231 have the same symmetry line, and the included angle a between the symmetry line and the horizontal plane is 19 degrees; in order to prolong the service life, as shown in fig. 4, both ends of the rubber intermediate layer 23 are provided with extension parts 232 which extend axially and are vulcanized and fixedly connected with the outer wall of the inner sleeve 22, the extension parts 232 are provided with convex rings 233 which protrude radially, and the end surfaces of the convex rings 233 are flush with the end surfaces of the inner sleeve 22.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (6)

1. The utility model provides a suspension assembly behind engine, includes support (1) and bush (2), bush (2) include overcoat (21), endotheca (22) and rubber intermediate level (23), overcoat (21) and endotheca (22) all be the tube-shape and overcoat (21) cover outside endotheca (22), rubber intermediate level (23) vulcanize and link firmly between overcoat (21) and endotheca (22), its characterized in that, support (1) include backup pad (11) and support frame (12), backup pad (11) vertical setting and the top of backup pad (11) have planker (111) that are 90 and turn over to backup pad (11) one side, support frame (12) have base (121) and two vertical side (122) that set up, base (121) weld in planker (111) top surface, the top surface of side (122) have concave arcwall face, the outer sleeve (21) is welded with the arc-shaped surface, the supporting plate (11) is welded with a reinforcing rib supported on the carriage (111), the rubber middle layer (23) is provided with a plurality of through holes (231) which axially penetrate through, and two ends of the inner sleeve (22) respectively exceed two end surfaces of the rubber middle layer (23).

2. The engine rear suspension assembly of claim 1, characterized in that the support plate (11) has a left connecting plate (112) extending to the lower left and a right connecting plate (113) extending to the lower right, the left connecting plate (112) having a length greater than that of the right connecting plate (113), the support plate (11) having a central connecting hole (114) in the middle, the left connecting plate (112) having a left connecting hole (115) at its end, and the right connecting plate (113) having a right connecting hole (116) at its end.

3. The engine rear suspension assembly of claim 2, characterized in that the left web (112) is an arcuate web, and the inner edge of the left web (112) transitions to the inner edge of the right web (113) via an arc (117).

4. The engine rear suspension assembly according to claim 3, characterized in that the reinforcing ribs comprise a left reinforcing rib (3) and a right reinforcing rib (4) which are in a triangular plate shape, the size of the left reinforcing rib (3) is smaller than that of the right reinforcing rib (4), the inner side edge of the left reinforcing rib (3) is welded with the support plate (11), the top edge of the left reinforcing rib (3) is welded with the carriage (111), the inner side edge of the right reinforcing rib (4) is welded with the support plate (11), the top edge of the right reinforcing rib (4) is welded with the carriage (111), and the left reinforcing rib (3) and the right reinforcing rib (4) are both inclined outwards to form an 'eight' shape when viewed in the axial direction of the inner sleeve (22).

5. The engine rear suspension assembly of claim 4, characterized in that the number of the through holes (231) is two, one of the through holes (231) is in a trapezoid shape, the other through hole (231) is in a herringbone shape, the trapezoid-shaped through hole (231) is positioned above the rubber sleeve middle layer, the herringbone-shaped through hole (231) is positioned below the rubber sleeve middle layer, the two through holes (231) have the same symmetry line, and the included angle (a) between the symmetry line and the horizontal plane is 19 °.

6. The engine rear suspension assembly of claim 5, characterized in that, both ends of the rubber intermediate layer (23) are provided with extension parts (232) which extend axially and are vulcanized and fixedly connected with the outer wall of the inner sleeve (22), the extension parts (232) are provided with convex rings (233) protruding radially, and the end surfaces of the convex rings (233) are flush with the end surfaces of the inner sleeve (22).