Automobile chassis suspension bushing with buffering function

Abstract

An automobile chassis suspension lining with a buffering function comprises an inner core pipe and an outer sleeve, the edge of one end of the outer sleeve extends outwards to form a flange part, a bonding layer is arranged between the inner core pipe and the outer sleeve, and a plurality of radial elastic element sets which are evenly arranged in the circumferential direction of the inner core pipe at intervals are arranged in the bonding layer. Each radial elastic element set comprises two spaced sliding strips, a plurality of radial springs which are sequentially arranged at intervals from top to bottom are arranged between the two sliding strips, first fixing pieces are fixed to the two ends of each radial spring and detachably installed on the sliding strips, and sliding grooves matched with the sliding strips are formed in the outer wall of the inner core pipe and the inner wall of the outer sleeve correspondingly. The end, close to the flange part, of the sliding groove is a closed end, the other end of the sliding groove is an open end, a first inserting column is fixed to the bottom of the sliding strip, and a first inserting groove matched with the first inserting column is formed in the closed end of the sliding groove. According to the utility model, the elastic element can be firmly installed between the inner core tube and the outer sleeve conveniently, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to an automobile chassis suspension bushing with a buffering function. Background Art

[0002] Automobile chassis bushings have the function of buffering and shock absorption, and are important components of automobile chassis suspension systems. Conventional bushings generally include an inner core tube, an outer sleeve arranged outside the inner core tube and coaxially with the inner core tube, and a bonding layer arranged between the inner core tube and the outer sleeve. The bonding layer is generally composed of shock-absorbing and buffering materials such as rubber. The bonding layer deforms under stress and can quickly recover to a state close to its original state after stress relaxation, thereby enabling the bushing to have the function of buffering and shock absorption. However, relying solely on the bonding layer to alleviate external impact is relatively simple in form, and it is not convenient to adjust the stiffness characteristics of the automobile chassis bushing as needed.

[0003] The patent application number is CN201610260012.7, and the patent name is automobile chassis bushing, suspension and automobile. In the disclosed technical solution, an elastic element is arranged between the inner core tube and the outer sleeve, and the elastic element is at least partially buried in the bonding layer. When the bushing is subjected to radial extrusion, the elastic element undergoes elastic deformation, generating a force to resist external radial extrusion, thereby alleviating the impact between the inner core tube and the outer sleeve caused by the external extrusion force. However, when multiple elastic elements need to be arranged between the inner core tube and the outer sleeve, it is inconvenient to firmly install the elastic elements between the inner core tube and the outer sleeve, which affects production efficiency. Utility Model Content

[0004] The utility model aims to provide a car chassis suspension bushing with a buffering function, which is convenient for firmly installing an elastic element between an inner core tube and an outer sleeve, thereby improving production efficiency.

[0005] The technical solution adopted by the utility model is:

[0006] A car chassis suspension bushing with a buffering function comprises an inner core tube and an outer sleeve, wherein the edge of one end of the outer sleeve extends outward to form a flange portion, an adhesive layer is provided between the inner core tube and the outer sleeve, and a plurality of radial elastic element groups are provided in the adhesive layer and are evenly spaced along the circumference of the inner core tube, the radial elastic element group comprises two spaced slide bars, and a plurality of radial springs are arranged in sequence from top to bottom between the two slide bars, and first fixing plates are fixed at both ends of the radial spring, and the first fixing plates are detachably mounted on the slide bar, and a slide groove cooperating with the slide bar is provided on the outer wall of the inner core tube and the inner wall of the outer sleeve, the end of the slide groove close to the flange portion is a closed end, and the other end of the slide groove is an open end, a first plug-in column is fixed to the bottom of the slide bar, and the closed end of the slide groove is provided with a first plug-in groove cooperating with the first plug-in column.

[0007] A symmetrical second plug-in column is fixed on one side of the first fixing plate away from the radial spring, and a second plug-in groove matched with the second plug-in column is provided on the sliding bar.

[0008] A cover plate is detachably fixed to the end of the outer sleeve away from the flange portion, and a mounting hole is provided in the middle of the cover plate; an annular assembly groove is provided on the side of the cover plate close to the adhesive layer, and an axial elastic element group is detachably installed in the assembly groove, and the axial center line of the assembly groove, the axial center line of the mounting hole and the axial center line of the inner core tube coincide.

[0009] The axial elastic element group includes a plurality of axial springs evenly spaced along the circumference of the assembly groove, and second fixing plates are fixed at both ends of the axial springs, a third plug-in column is fixed on one of the second fixing plates, a third plug-in groove corresponding to the third plug-in column is provided in the assembly groove, and another second fixing plate abuts against the adhesive layer.

[0010] A threaded sleeve corresponding to the inner core tube is fixed in the mounting hole, and the inner diameter of the threaded sleeve is the same as the inner diameter of the inner core tube.

[0011] The utility model discloses a bonding layer is provided between the inner core tube and the outer sleeve, which has a shock-absorbing and buffering effect. The bonding layer is provided with a plurality of radial elastic element groups evenly spaced along the circumference of the inner core tube. When the bushing is subjected to radial extrusion, the radial elastic element group undergoes elastic deformation to generate a force resisting external radial extrusion, thereby alleviating the impact between the inner core tube and the outer sleeve caused by the external extrusion force. The radial elastic element group comprises two spaced sliding bars, and a plurality of radial springs are arranged in sequence from top to bottom between the two sliding bars, which is convenient for resisting the external radial extrusion force. First fixing plates are fixed at both ends of the radial spring, and the first fixing plates can be detachably installed on the sliding bars for easy installation and disassembly. The outer wall of the inner core tube and the inner wall of the outer sleeve are both provided with sliding grooves matching with the sliding strips. The sliding strips can slide up and down along the sliding grooves for easy installation and disassembly. A first plug-in column is fixed at the bottom of the sliding strip, and a first plug-in column is provided at the closed end of the sliding groove for easy stably setting the sliding strip in the sliding groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model (I);

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model (II);

[0015] Figure 4 It is a schematic diagram of the structure of the radial elastic element group. DETAILED DESCRIPTION

[0016] like Figure 1-Figure 4As shown, a car chassis suspension bushing with a buffering function comprises an inner core tube 14 and an outer sleeve 2, one end edge of the outer sleeve 2 extends outward to form a flange portion 1, a bonding layer 15 is provided between the inner core tube 14 and the outer sleeve 2, the bonding layer 15 is generally composed of shock-absorbing and buffering materials such as rubber, the bonding layer 15 deforms under stress, and can quickly recover to a state close to the original state after stress relaxation, a plurality of radial elastic element groups are arranged evenly spaced along the circumference of the inner core tube 14 in the bonding layer 15, when the bushing is subjected to radial extrusion, the radial elastic element group undergoes elastic deformation, generates a force to resist external radial extrusion, thereby alleviating the internal core tube 14 and the outer sleeve 2 caused by the external extrusion force. The radial elastic element group includes two spaced slide bars 4, between which a plurality of radial springs 7 are arranged in sequence from top to bottom to resist the external radial extrusion force, and first fixing plates 5 are fixed at both ends of the radial spring 7, which are detachably mounted on the slide bar 4 for easy installation and disassembly, and the outer wall of the inner core tube 14 and the inner wall of the outer sleeve 2 are provided with a slide groove 8 cooperating with the slide bar 4, the end of the slide groove 8 close to the flange portion 1 is a closed end, and the other end of the slide groove 8 is an open end, and a first plug-in column 13 is fixed to the bottom of the slide bar 4, and the closed end of the slide groove 8 is provided with a first plug-in groove cooperating with the first plug-in column 13, so that the slide bar 4 is stably set in the slide groove 8.

[0017] A symmetrical second plug-in column 6 is fixed on the side of the first fixing plate 5 facing away from the radial spring 7. A second plug-in groove cooperating with the second plug-in column 6 is provided on the slide bar 4. The second plug-in column 6 is plugged into the corresponding second plug-in groove, thereby realizing the detachable installation of the first fixing plate 5 and the slide bar 4, which is convenient for installation and disassembly.

[0018] The end of the outer sleeve 2 away from the flange 1 is detachably fixed with a cover plate 3, which is convenient for installation and removal. Figure 1 A cover plate 3 is installed in Figure 3 No cover plate is installed in the middle, and a mounting hole is provided in the middle of the cover plate 3, corresponding to the inner core tube 14; an annular assembly groove 9 is provided on one side of the cover plate 3 close to the adhesive layer 15, and an axial elastic element group is detachably installed in the assembly groove 9 to resist the external axial extrusion force, and the axial center line of the assembly groove 9, the axial center line of the mounting hole and the axial center line of the inner core tube 14 coincide with each other.

[0019] The axial elastic element group includes a plurality of axial springs 16 evenly spaced along the circumference of the assembly groove 9. Second fixing plates 10 are fixed at both ends of the axial springs 16. A third plug-in column 11 is fixed on one of the second fixing plates 10. A third plug-in groove corresponding to the third plug-in column 11 is provided in the assembly groove 9 to facilitate installation and disassembly. The other second fixing plate 10 abuts against the adhesive layer 15.

[0020] like Figure 1 and Figure 2As shown, a threaded sleeve 12 corresponding to the inner core tube 14 is fixed in the mounting hole, and the inner diameter of the threaded sleeve 12 is the same as the inner diameter of the inner core tube 14. During installation, a fixing bolt is installed in the inner core tube 14, and the fixing bolt connects the automobile chassis bushing to the vehicle structural member, and the threaded sleeve 12 is threadedly matched with the fixing bolt.

[0021] During installation, the second plug-in columns 6 on the first fixing plates 5 at both ends of the radial spring 7 are inserted into the second plug-in grooves on the slide bar 4 for pre-installation, and then the slide bar 4 is slid downward along the corresponding slide bar 4, and the first plug-in columns 13 at the bottom of the slide bar 4 are inserted into the corresponding first plug-in grooves, and then the adhesive layer 15 is filled between the inner core tube 14 and the outer sleeve 2, and the third plug-in columns 11 on the second fixing plate 10 are inserted into the third plug-in grooves in the assembly groove 9, and finally the cover plate 3 is detachably fixed to the outer sleeve 2 by screws, which is convenient for installation and disassembly; during assembly, the automobile chassis suspension bushing is assembled in the automobile chassis suspension system.

[0022] During use, when the bushing is subjected to radial compression, the radial spring 7 and the bonding layer 15 of the radial elastic element group undergo elastic deformation, generating a force to resist external radial compression; when the bushing is subjected to axial compression, the axial spring 16 and the bonding layer 15 of the axial elastic element group undergo elastic deformation, generating a force to resist external axial compression.

[0023] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A vehicle chassis suspension bushing with a buffering function, comprising an inner core tube and an outer sleeve, wherein one end edge of the outer sleeve extends outward to form a flange portion, a bonding layer is provided between the inner core tube and the outer sleeve, and a plurality of radial elastic element groups are provided in the bonding layer and are evenly spaced along the circumference of the inner core tube, wherein: The radial elastic element group includes two spaced sliding bars, and a plurality of radial springs are arranged in sequence from top to bottom between the two sliding bars. First fixing plates are fixed at both ends of the radial springs, and the first fixing plates are detachably mounted on the sliding bars. The outer wall of the inner core tube and the inner wall of the outer sleeve are both provided with sliding grooves that cooperate with the sliding bars, and one end of the sliding groove close to the flange portion is a closed end, and the other end of the sliding groove is an open end. A first plug-in column is fixed at the bottom of the sliding bar, and the closed end of the sliding groove is provided with a first plug-in groove that cooperates with the first plug-in column.

2. The automobile chassis suspension bushing with a buffering function as claimed in claim 1, characterized in that: A symmetrical second plug-in column is fixed on one side of the first fixing plate away from the radial spring, and a second plug-in groove matched with the second plug-in column is provided on the sliding bar.

3. The automobile chassis suspension bushing with a buffering function as claimed in claim 1, characterized in that: A cover plate is detachably fixed to the end of the outer sleeve away from the flange portion, and a mounting hole is provided in the middle of the cover plate; an annular assembly groove is provided on the side of the cover plate close to the adhesive layer, and an axial elastic element group is detachably installed in the assembly groove, and the axial center line of the assembly groove, the axial center line of the mounting hole and the axial center line of the inner core tube coincide.

4. The automobile chassis suspension bushing with a buffering function as claimed in claim 3, characterized in that: The axial elastic element group includes a plurality of axial springs evenly spaced along the circumference of the assembly groove, and second fixing plates are fixed at both ends of the axial springs, a third plug-in column is fixed on one of the second fixing plates, a third plug-in groove corresponding to the third plug-in column is provided in the assembly groove, and another second fixing plate abuts against the adhesive layer.

5. The automobile chassis suspension bushing with a buffering function as claimed in claim 3, characterized in that: A threaded sleeve corresponding to the inner core tube is fixed in the mounting hole, and the inner diameter of the threaded sleeve is the same as the inner diameter of the inner core tube.

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