CN212131155U - Steel plate spring bushing - Google Patents
Steel plate spring bushing Download PDFInfo
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- CN212131155U CN212131155U CN202020396323.8U CN202020396323U CN212131155U CN 212131155 U CN212131155 U CN 212131155U CN 202020396323 U CN202020396323 U CN 202020396323U CN 212131155 U CN212131155 U CN 212131155U
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Abstract
A steel plate spring bushing comprises a steel outer sleeve and a steel inner sleeve, wherein a double-layer steel frame sleeve is arranged between the steel outer sleeve and the steel inner sleeve and provided with a first steel framework and a second steel framework which are cylindrical, and a layer of rubber is injected into the inner surface of the first steel framework and the inner surface of the second steel framework. The inner surface of the steel outer sleeve is injected with a layer of rubber, the rubber on the inner surface of the steel outer sleeve is in contact with the outer surface of the double-layer steel frame sleeve, the rubber on the inner surface of the double-layer steel frame sleeve is in contact with the outer surface of the steel inner sleeve, and the steel inner sleeve is in interference fit with the double-layer steel frame sleeve; two ends of the double-layer steel frame sleeve are connected with metal lantern rings. According to the structure, the double-layer steel frame sleeve is arranged between the steel outer sleeve and the steel inner sleeve, rubber is injected between the frameworks, and the steel outer sleeve, the first framework and the rubber are provided with the notches, so that the radial rigidity of the bushing is effectively enhanced, the elasticity of the bushing is improved, and the service life of the bushing is prolonged.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to an elastic steel plate spring bushing for a heavy truck.
Background
The existing bushing adopts a steel outer sleeve and a steel inner sleeve, and a rubber structure is clamped between the steel outer sleeve and the steel inner sleeve, so that the bushing with the structure is not well stressed in the radial direction in the use process and is easy to damage. The applicant currently owns a chinese patent with patent number "201820157482.5" and discloses a bushing assembly, which is structurally a bushing formed by an outer steel sleeve, an intermediate steel sleeve and an inner steel sleeve, but the bushing with the structure has the defects of poor elasticity, no guaranteed radial rigidity and short service life in the use process.
Disclosure of Invention
In order to solve the problems, the invention provides an elastic steel plate spring bushing, aiming at achieving the purposes of enhancing the elasticity of the bushing, enhancing the radial rigidity and prolonging the service life, and the adopted technical scheme is as follows:
the utility model provides a steel plate spring bush, has steel outer tube and steel interior sleeve pipe the steel outer tube with be provided with double-deck steel frame sleeve pipe between the steel interior sleeve pipe, double-deck steel frame sleeve pipe has first steel skeleton and second steel skeleton, first steel skeleton the second steel skeleton is the cylinder, first steel skeleton internal surface with second steel skeleton internal surface all has injected one deck rubber. The bush adopts four layers of skeleton texture, is provided with double-deck steelframe sleeve pipe between steel outer tube and steel interior sleeve pipe, has strengthened the radial strength of bush. And rubber is arranged between the four layers of frameworks, so that the elastic function of the bushing is further enhanced, and after the bushing is installed, the rubber is pre-compressed, so that the prestress of the bushing in the use process is improved.
A layer of rubber is injected into the inner surface of the steel outer sleeve, the rubber on the inner surface of the steel outer sleeve is in contact with the outer surface of the double-layer steel frame sleeve, the rubber on the inner surface of the double-layer steel frame sleeve is in contact with the outer surface of the steel inner sleeve, and the steel inner sleeve is in interference fit with the double-layer steel frame sleeve; and two ends of the double-layer steel frame sleeve are connected with metal lantern rings. The steel inner sleeve is pressed into the double-layer steel frame sleeve in an interference fit mode, the steel inner sleeve is in interference fit with the double-layer steel frame sleeve, the structure is more compact, the structural strength is improved, and the radial rigidity of the bushing is further improved. The metal collar is fixed to double-deck steelframe sleeve pipe both ends, further improves the structural strength of bush.
In the above leaf spring bushing, further, the steel outer sleeve, the first steel skeleton and the rubber therebetween have a gap axially from top to bottom. The notch is a long-strip-shaped opening which is axially and automatically damaged along the bushing, the steel outer sleeve, the rubber on the inner surface of the steel outer sleeve, the first steel skeleton and the rubber on the inner surface of the first steel skeleton are provided with the notch at the same position, and the steel outer sleeve is provided with an opening inwards in sequence. After the bush is arranged in the holes at the two ends of the steel plate spring, the opening on the surface of the bush can be closed due to the small diameter of the holes. When the diameter of the hole is large, the opening on the surface of the lining can be opened, and the opening and closing of the opening further enhances the elasticity of the lining.
In the above leaf spring bushing, further, the lengths of the steel outer sleeve and the steel inner sleeve are the same, and the length of the double-layer steel frame sleeve is smaller than that of the steel outer sleeve and that of the steel inner sleeve. The length of the steel outer sleeve and the length of the steel inner sleeve are larger than that of the double-layer steel frame sleeve, the double-layer steel frame sleeve is wrapped inside, and the radial rigidity of the bushing is enhanced.
In the above steel plate spring bushing, further, the metal collar is located in a groove formed by the outer steel sleeve and the inner steel sleeve. The length of the steel outer sleeve and the length of the steel inner sleeve are larger than that of the double-layer steel frame sleeve, the steel outer sleeve and the steel inner sleeve form a groove at the end part of the double-layer steel frame sleeve, and the metal sleeve ring is pressed into the groove in an interference fit mode to fix the double-layer steel frame sleeve so that the bushing forms a whole.
In the leaf spring bushing, further, the rubber on the inner surfaces of the steel outer sleeve and the steel outer sleeve, and the rubber on the inner surfaces of the first steel skeleton and the first steel skeleton are vulcanized into a whole. The steel outer sleeve, the rubber on the inner surface of the steel outer sleeve, the first steel skeleton and the rubber on the inner surface of the first steel skeleton are vulcanized into a whole to form an integral structure, so that the structural stability and the structural strength are enhanced.
Above-mentioned leaf spring bush, further, double-deck steelframe sleeve pipe and metal lantern ring interference fit. The tightness among each structure of interference fit reinforcing bush, and then reinforcing structural strength.
According to the structure, the double-layer steel frame sleeve is arranged between the steel outer sleeve and the steel inner sleeve, rubber is injected between the frameworks, and the steel outer sleeve, the first steel framework and the rubber are provided with the notches, so that the radial rigidity of the bushing is effectively enhanced, the elasticity of the bushing is improved, and the service life of the bushing is prolonged.
Drawings
FIG. 1 is a schematic side view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
wherein: 1-steel outer sleeve, 2-steel inner sleeve, 3-first steel skeleton, 4-second steel skeleton, 5-metal lantern ring, 6-gap.
Detailed Description
The invention is further explained with reference to the accompanying drawings, and as shown in fig. 1 and 2, the elastic steel plate bushing comprises a steel outer sleeve 1 and a steel inner sleeve 2, a double-layer steel frame bushing is arranged between the steel outer sleeve and the steel inner sleeve, and the double-layer steel frame bushing is provided with a cylindrical first steel frame 3 and a cylindrical second steel frame 4 to form a bushing with four layers of frameworks. Rubber is injected into the inner surface of the steel outer sleeve, the inner surface of the first steel skeleton and the inner surface of the second steel skeleton. The rubber on the inner surface of the steel outer sleeve is in contact with the outer surface of the first steel skeleton, the rubber on the inner surface of the first steel skeleton is in contact with the outer surface of the second steel skeleton, and the rubber on the inner surface of the second steel skeleton is in contact with the outer surface of the steel inner sleeve.
The steel outer sleeve, the rubber on the inner surface of the steel outer sleeve, the first steel skeleton and the rubber on the inner surface of the first steel skeleton are positioned at the same position, and a gap 6 is axially opened from top to bottom and is formed into a whole through vulcanization. And pressing a steel inner sleeve into the second steel framework, wherein the second steel framework is in interference fit with the steel inner sleeve. The metal lantern ring 5 is impressed at double-deck steel frame sleeve pipe both ends, and the length of steel outer tube, the interior sleeve pipe of steel is greater than double-deck steel frame sleeve pipe, and steel outer tube, the interior sleeve pipe of steel form a recess at double-deck steel frame sleeve pipe tip, and the metal lantern ring is located the recess, the metal lantern ring and steel outer tube, the interior sleeve pipe interference fit of steel.
The invention is arranged in the spring hole of the automobile steel plate and has the effects of strong radial rigidity, large elasticity and long service life.
Claims (6)
1. A leaf spring bushing, characterized by: the steel-reinforced plastic pipe is characterized by comprising a steel outer sleeve (1) and a steel inner sleeve (2), wherein a double-layer steel-frame sleeve is arranged between the steel outer sleeve and the steel inner sleeve, the double-layer steel-frame sleeve is provided with a first steel frame (3) and a second steel frame (4), the first steel frame and the second steel frame are cylindrical, and a layer of rubber is injected into the inner surface of the first steel frame and the inner surface of the second steel frame;
a layer of rubber is injected into the inner surface of the steel outer sleeve, the rubber on the inner surface of the steel outer sleeve is in contact with the outer surface of the double-layer steel frame sleeve, the rubber on the inner surface of the double-layer steel frame sleeve is in contact with the outer surface of the steel inner sleeve, and the steel inner sleeve is in interference fit with the double-layer steel frame sleeve; and two ends of the double-layer steel frame sleeve are connected with metal lantern rings (5).
2. A leaf spring bushing according to claim 1, wherein: the steel outer sleeve, the first steel skeleton and the rubber between the steel outer sleeve and the first steel skeleton are provided with a gap (6) from top to bottom in the axial direction.
3. A leaf spring bushing according to claim 1, wherein: the length of the steel outer sleeve is the same as that of the steel inner sleeve, and the length of the double-layer steel frame sleeve is smaller than that of the steel outer sleeve and that of the steel inner sleeve.
4. A leaf spring bushing according to claim 3, wherein: the metal lantern ring is positioned in a groove formed by the steel outer sleeve and the steel inner sleeve.
5. A leaf spring bushing according to claim 1, wherein: the steel outer sleeve and the rubber on the inner surface of the steel outer sleeve, and the first steel skeleton and the rubber on the inner surface of the first steel skeleton are vulcanized into a whole.
6. A leaf spring bushing according to claim 1, wherein: the double-layer steel frame sleeve is in interference fit with the metal sleeve ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020396323.8U CN212131155U (en) | 2020-03-25 | 2020-03-25 | Steel plate spring bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020396323.8U CN212131155U (en) | 2020-03-25 | 2020-03-25 | Steel plate spring bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131155U true CN212131155U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020396323.8U Active CN212131155U (en) | 2020-03-25 | 2020-03-25 | Steel plate spring bushing |
Country Status (1)
| Country | Link |
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| CN (1) | CN212131155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135613A (en) * | 2021-10-26 | 2022-03-04 | 安徽鼎封橡胶减震技术有限公司 | Bush of shock absorber with new structure |
-
2020
- 2020-03-25 CN CN202020396323.8U patent/CN212131155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135613A (en) * | 2021-10-26 | 2022-03-04 | 安徽鼎封橡胶减震技术有限公司 | Bush of shock absorber with new structure |
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