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CN-121989660-A - Suspension assembly, method and vehicle for assembling anti-collision pad and secondary shock insulation

CN121989660ACN 121989660 ACN121989660 ACN 121989660ACN-121989660-A

Abstract

The invention discloses a suspension assembly, a method and a vehicle for assembling an anti-collision cushion and a secondary shock insulation, and relates to the technical field of automobile shock insulation, comprising a suspension framework, a main spring subassembly and a flexible anti-collision cushion, wherein the suspension framework is provided with a plurality of bolt mounting holes, and a secondary shock insulation sleeve is fixed in each bolt mounting hole; the main spring sub-assembly is arranged in an assembly cavity of the suspension framework, the flexible anti-collision pad is clamped on the outer sides of the main spring sub-assembly and the suspension framework, limiting protrusions are arranged on the outer sides of the suspension framework in pairs, and the limiting protrusions are used for limiting the flexible anti-collision pad in an annular direction. According to the invention, the anti-collision pad, the secondary shock insulation sleeve and the main spring are matched, so that the shock insulation performance is enhanced, the deformation of the main spring is reduced, and the problem of motor howling is solved.

Inventors

  • LI MENGEN
  • LV HONGZHI
  • CAO MINGZHI
  • LI LIRUI

Assignees

  • 奇瑞新能源汽车股份有限公司

Dates

Publication Date
20260508
Application Date
20260205

Claims (10)

  1. 1. A suspension assembly for assembling an anti-collision cushion and a secondary shock absorber is characterized by comprising a suspension framework, a main spring sub-assembly and a flexible anti-collision cushion, wherein the suspension framework is provided with a plurality of bolt mounting holes, a secondary shock absorber sleeve is fixed in each bolt mounting hole, the main spring sub-assembly is arranged in an assembly cavity of the suspension framework, the flexible anti-collision cushion is clamped on the outer sides of the main spring sub-assembly and the suspension framework, limiting protrusions are arranged on the outer sides of the suspension framework in pairs, and the limiting protrusions are used for limiting the flexible anti-collision cushion in a circumferential direction.
  2. 2. The suspension assembly for assembling a crash cushion and secondary shock insulation as defined in claim 1, wherein said flexible crash cushion comprises a first crash side portion and a second crash side portion, said first and second crash side portions being symmetrically disposed about an axial direction of said main spring subassembly; the first anti-collision side part and the second anti-collision side part are connected through at least one connecting part.
  3. 3. The suspension assembly for assembling a crash pad and secondary shock insulation as recited in claim 2, wherein said first and second crash sides are scalloped; The first anti-collision side part and the second anti-collision part are provided with matching holes for connecting the main spring sub-assembly.
  4. 4. A suspension assembly for assembling a crash cushion and a secondary shock absorber as set forth in claim 3 wherein said first and second crash sides are each provided with a plurality of crash bumps; The extension direction of the anti-collision bulge is radial to the matching hole.
  5. 5. The suspension assembly for assembling a crash cushion and a secondary shock absorber of claim 2 wherein said connector is captured between two spacing projections.
  6. 6. The suspension assembly of claim 1 wherein the secondary shock absorbing jacket is bonded to the inner wall of the bolt mounting hole.
  7. 7. The suspension assembly for assembling a crash cushion and secondary shock insulation as recited in claim 1, wherein said main spring subassembly is in interference fit with the suspension backbone.
  8. 8. A suspension assembly for assembling a crash pad and secondary shock insulation as claimed in claim 1 or claim 7, wherein said main spring subassembly comprises a main spring, an inner tube and an outer tube, said main spring being vulcanized between said inner tube and said outer tube.
  9. 9. A method of assembling a crash pad and secondary shock isolation suspension assembly as claimed in any one of claims 1 to 8, comprising: Bonding a secondary shock insulation sleeve to the corresponding bolt mounting hole; Forming a main spring sub-assembly by a vulcanization process through the main spring, the outer tube and the inner tube; the main spring sub-assembly is press-fitted into the assembly cavity of the suspension frame, after which the flexible crash pad is assembled outside the suspension frame.
  10. 10. A vehicle incorporating a suspension assembly as claimed in any one of claims 1 to 8 fitted with a crash pad and secondary shock insulation.

Description

Suspension assembly, method and vehicle for assembling anti-collision pad and secondary shock insulation Technical Field The invention relates to the technical field of automobile shock insulation, in particular to a suspension assembly, a method and a vehicle for assembling an anti-collision pad and secondary shock insulation. Background At present, the performance requirements on damping parts are higher and higher, and the rubber suspension has to have the functions of shock absorption, sound insulation and noise reduction and limit functions on the power assembly, so that the suspension cushion can play a role in shock insulation, and meanwhile, the power assembly is ensured to move in a controllable range, and collision with peripheral parts caused by overlarge displacement of the power assembly is avoided. The rigidity and the structural form of the rubber suspension pad may affect the stability of the vehicle handling and the riding comfort. However, the comfort and the operation stability of the automobile belong to mutually opposite performance indexes, the suspension cushion should be made to be smaller or softer as much as possible in consideration of the comfort of riding, and the rubber suspension cushion should be made to be harder or larger in consideration of the operation stability of the automobile, so that the suspension cushion is in contradiction. In order to optimize the suspension structure, the prior art adopts the following measures that a primary vibration isolation bushing and a secondary vibration isolation bushing are arranged on a suspension bracket, the primary vibration isolation bushing is used for connecting a subframe assembly, the secondary vibration isolation bushing is used for connecting a driving assembly, and the transmissivity of high-frequency vibration noise of the driving assembly is reduced by adding the secondary vibration isolation bushing. The vibration isolation structure is added in the scheme, but when the axial displacement of the main spring is too large, the motor squeal problem still occurs. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a suspension assembly, a method and a vehicle for assembling an anti-collision pad and a secondary shock insulation, which are matched with a main spring through the anti-collision pad and the secondary shock insulation sleeve, so that the shock insulation performance is enhanced, the deformation of the main spring is reduced, and the problem of howling of a motor is solved. In order to achieve the above object, the present invention is realized by the following technical scheme: In a first aspect, an embodiment of the invention provides a suspension assembly for assembling an anti-collision cushion and a secondary shock insulation, which comprises a suspension framework, a main spring sub-assembly and a flexible anti-collision cushion, wherein the suspension framework is provided with a plurality of bolt mounting holes, a secondary shock insulation sleeve is fixed in each bolt mounting hole, the main spring sub-assembly is arranged in an assembly cavity of the suspension framework, the flexible anti-collision cushion is clamped outside the main spring sub-assembly and the suspension framework, limiting protrusions are arranged outside the suspension framework in pairs, and the limiting protrusions are used for limiting the flexible anti-collision cushion in a circumferential direction. As a further implementation manner, the flexible anti-collision pad comprises a first anti-collision side part and a second anti-collision side part, wherein the first anti-collision side part and the second anti-collision side part are symmetrically arranged relative to the two axial sides of the main spring sub-assembly; the first anti-collision side part and the second anti-collision side part are connected through at least one connecting part. As a further implementation, the first and second impact sides are in a scalloped configuration; The first anti-collision side part and the second anti-collision part are provided with matching holes for connecting the main spring sub-assembly. As a further implementation manner, the first anti-collision side part and the second anti-collision part are respectively provided with a plurality of anti-collision bulges; The extension direction of the anti-collision bulge is radial to the matching hole. As a further implementation manner, the connecting part is clamped between the two limiting protrusions. As a further implementation manner, the secondary shock insulation sleeve is adhered to the inner wall of the bolt mounting hole. As a further implementation, the main spring subassembly is in interference fit with the suspension backbone. As a further implementation, the main spring subassembly includes a main spring, an inner tube, and an outer tube, the main spring being vulcanized between the inner tube and the outer tube. In a second aspect, emb