CN114393776A - Full-hollow rubber ball pin and preparation method thereof - Google Patents
Full-hollow rubber ball pin and preparation method thereof Download PDFInfo
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- CN114393776A CN114393776A CN202210070591.4A CN202210070591A CN114393776A CN 114393776 A CN114393776 A CN 114393776A CN 202210070591 A CN202210070591 A CN 202210070591A CN 114393776 A CN114393776 A CN 114393776A
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- Prior art keywords
- hollow
- pin shaft
- thin
- outer sleeve
- rubber
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 238000004073 vulcanization Methods 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 238000005422 blasting Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 238000005242 forging Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 6
- 239000000306 component Substances 0.000 description 4
- 239000004636 vulcanized rubber Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/005—Ball joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Pivots And Pivotal Connections (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention provides a full hollow rubber ball pin and a preparation method thereof, wherein the ball pin comprises a hollow pin shaft, a thin-wall steel outer sleeve and a rubber lining; the thin-wall steel outer sleeve is sleeved outside the hollow pin shaft, and the rubber lining is filled between the thin-wall steel outer sleeve and the hollow pin shaft in an integrated glue injection and vulcanization mode. The invention changes the solid forging structure pin roll of the original thrust rod rubber core, improves the material utilization rate and reduces the cost and the weight.
Description
Technical Field
The invention mainly relates to the technical field of vehicle parts, in particular to a full-hollow rubber ball pin and a preparation method thereof.
Background
At present, the social automobile industry develops rapidly, the requirements for energy conservation and emission reduction are continuously improved, and the research on the light weight of automobiles is more and more widely regarded. The thrust rod of the heavy truck is an important part in an automobile chassis, plays a role in keeping the running posture of an axle, transmitting driving force and braking force and plays an important role in automobile manufacturing. Thus, in the automobile manufacturing industry, the performance requirements of the thrust rod are increasing. For the manufacturing of the thrust rod, optimization is carried out by starting from lightweight structure design, a new material with high strength and lightweight and a new process, so that the aim of automobile lightweight is achieved, and the research direction for optimizing the performance of the automobile chassis component is how to manufacture the qualified thrust rod by the lowest cost, the highest efficiency and the simplest process.
The rubber cores (ball pins) at the two ends of the thrust rod are core components of the thrust rod, the design and the performance of the thrust rod are directly determined, the rubber cores (ball pins) of the thrust rod with the old structure are of a solid forged pin shaft structure, the rubber core structure has the advantages of large weight, low production efficiency, low material utilization rate, high cost, huge power consumption, large mold consumption, large equipment investment and easy occurrence of the defects of overburning and burning impermeability in the heating process.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the full-hollow rubber ball pin and the preparation method thereof by combining the prior art and starting from practical application, wherein the full-hollow rubber ball pin changes the solid forging structure pin shaft of the original thrust rod rubber core, the material utilization rate is improved, and the cost and the weight are reduced.
The technical scheme of the invention is as follows:
according to one aspect of the invention, a full hollow rubber ball pin is provided, which comprises a hollow pin shaft, a thin-wall steel outer sleeve and a rubber lining;
the thin-wall steel outer sleeve is sleeved outside the hollow pin shaft, and the rubber lining is filled between the thin-wall steel outer sleeve and the hollow pin shaft in an integrated glue injection and vulcanization mode.
Furthermore, the hollow pin shaft is made of 35CrMo or 42CrMo thick-wall seamless steel pipe with the outer diameter of 35-44mm and the wall thickness of 7-12 mm.
Furthermore, round holes are formed in two ends of the hollow pin shaft.
According to another aspect of the present invention, there is provided a method for preparing the above all-hollow rubber ball pin, comprising the steps of:
s1, heating the two ends of the seamless steel pipe, and then flattening and forming to form the hollow pin shaft;
s2, carrying out modulation heat treatment and shot blasting phosphating treatment after drilling on the flattened hollow pin shaft;
s3, carrying out phosphating treatment after blanking of the thin-wall steel jacket;
and S4, placing the hollow pin shaft and the thin-wall steel outer sleeve into a vulcanization glue injection mold, injecting glue and vulcanizing, and vulcanizing the hollow pin shaft, the thin-wall steel outer sleeve and the rubber into a whole to form the full hollow rubber ball pin.
In step S1, the seamless steel pipe is a 35CrMo or 42CrMo thick seamless steel pipe with an outer diameter of 35-44mm and a thickness of 7-12 mm.
Further, in step S2, drilling holes at both ends of the hollow pin shaft after the modulation heat treatment, and then performing shot blasting phosphating.
The invention has the beneficial effects that:
1. the full-hollow rubber ball pin provided by the invention is characterized in that a 35CrMo or 42CrMo thick-wall seamless steel pipe with the outer diameter of 35-44mm and the wall thickness of 7-12 mm is firstly flattened, tempered and machined in the industry to manufacture the rubber core pin shaft of the thrust rod, so that the solid forging structure pin shaft of the original rubber core of the thrust rod is changed, the material utilization rate is improved, the cost is reduced by 60%, and the weight is reduced by 46%.
2. The full-hollow rubber ball pin provided by the invention adopts the structural design of hollow pin shaft, thin-wall steel sleeve and rubber integrated glue injection and vulcanization, and the structural design of solid forged pin shaft, 2 steel retaining rings and rubber integrated glue injection and vulcanization adopted by the original thrust rod ball pin is abandoned, so that the structure of the thrust rod ball pin is simplified, the number of thrust rod ball pin components is reduced, the weight and the cost of the thrust rod rubber core are reduced, the number of the thrust rod rubber core components is reduced from 3 to 2, and the weight and the cost are reduced.
3. According to the full-hollow rubber ball pin, the hollow pin shaft and the thin-wall steel outer sleeve structure, when glue is injected and vulcanized, the temperature rise speed is increased by 30%, the heating speed of the steel frameworks is faster and more uniform, the vulcanization time is reduced by 20%, the vulcanization performance of the ball pin of the thrust rod is improved, the vulcanization cost of the ball pin of the thrust rod is reduced, and the production efficiency of the ball pin of the thrust rod is improved.
4. The preparation method of the full-hollow ball pin provided by the invention has the advantages of simple process, capability of improving the production efficiency of the ball pin and reduction of the overall cost and weight.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic diagram of the structure of a hollow pin shaft according to the present invention;
FIG. 3 is a schematic cross-sectional structure view of the hollow pin shaft of the present invention;
FIG. 4 is a schematic structural view of the thin-wall steel jacket of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Example 1
As shown in fig. 1-4, a schematic diagram of a structure related to a full hollow rubber ball pin provided in this embodiment is shown. The rubber ball pin provided by the embodiment mainly comprises three parts: the high-strength hollow hinge pin comprises a high-strength hollow hinge pin 1, a thin-wall steel outer sleeve 2 and an integrally vulcanized rubber lining layer 3.
The hollow pin shaft 1 is internally of a hollow structure, the middle section of the hollow pin shaft 1 is of a cylindrical structure, the two ends of the hollow pin shaft are of flat structures, and the two flat ends of the hollow pin shaft are provided with round holes 11 for connecting the hollow pin shaft with other parts. The hollow pin shaft 1 is manufactured by flattening, tempering and machining two ends of a thick-wall seamless steel pipe, so that the solid forging structure pin shaft of the original thrust rod ball pin is changed. In the embodiment, the hollow pin shaft 1 preferably uses a 35CrMo or 42CrMo thick-wall seamless steel pipe with the outer diameter of 35-44mm and the wall thickness of 7mm-12mm to ensure the integral performance of the pin shaft. The hollow pin shaft 1 changes the solid forging structure pin shaft of the prior thrust rod ball pin, improves the material utilization rate, reduces the cost by 60 percent and reduces the weight by 46 percent.
The thin-wall steel jacket 2 is sleeved outside the middle cylinder part of the hollow pin shaft 1, and a rubber lining 3 is filled in a gap between the thin-wall steel jacket 2 and the hollow pin shaft 1 in an integrated vulcanization mode. By adopting the structural design of the hollow pin shaft 1+ the thin-wall steel outer sleeve 2+ the rubber integrated glue injection vulcanized rubber lining 3, the structural design of solid forged pin shaft +2 steel retaining rings + the rubber integrated glue injection vulcanized structure of the original thrust rod ball pin is abandoned, the structure of the thrust rod ball pin is simplified, the number of thrust rod ball pin components is reduced, the weight and the cost of the thrust rod ball pin are reduced, the number of the thrust rod ball pin components is reduced from 3 to 2, and the weight and the cost are reduced. Meanwhile, the hollow pin shaft and the thin-wall steel outer sleeve structure improve the temperature rise speed by 30 percent during glue injection vulcanization, the heating speeds of the steel frameworks are faster and more uniform, the vulcanization time is reduced by 20 percent, the vulcanization performance of the ball pin of the thrust rod is improved, the vulcanization cost of the ball pin of the thrust rod is reduced, and the production efficiency of the ball pin of the thrust rod is improved.
Example 2
The rubber ball pin provided by the embodiment mainly comprises three parts: the high-strength hollow hinge pin comprises a high-strength hollow hinge pin 1, a thin-wall steel outer sleeve 2 and an integrally vulcanized rubber lining layer 3. The hollow pin shaft 1 is made by flattening two ends of a 42CrMo thick-wall seamless steel pipe with the outer diameter of 40mm, wherein the overall length of the hollow pin shaft 1 is 165mm, the length of a middle cylinder is 59mm, two ends of the hollow pin shaft are symmetrical in a flat structure, the width of the hollow pin shaft is 45mm, and round holes 11 are respectively processed after quenching and tempering. The outer diameter of the thin-wall steel outer sleeve 2 is 64mm, the wall thickness is 2.5mm, and the length is 50 mm. And sleeving the thin-wall steel outer sleeve 2 outside the middle of the hollow pin shaft 1, putting the hollow pin shaft 1 into a vulcanization glue injection mold, injecting glue and vulcanizing, and vulcanizing the hollow pin shaft 1, the thin-wall steel outer sleeve 2 and rubber into a whole to form the full hollow rubber ball pin.
Example 3:
the rubber ball pin provided by the embodiment mainly comprises three parts: the high-strength hollow hinge pin comprises a high-strength hollow hinge pin 1, a thin-wall steel outer sleeve 2 and an integrally vulcanized rubber lining layer 3. The preparation method of the rubber ball pin comprises the following steps:
s1, a hollow pin shaft 1 is formed by heating two ends of a 35CrMo or 42CrMo thick-wall seamless steel pipe with the outer diameter of 35-44mm and the wall thickness of 7mm-12mm and then flattening;
s2, carrying out quenching and tempering heat treatment after flattening, and carrying out shot blasting phosphating treatment after drilling;
s3, carrying out phosphating treatment after blanking processing of the thin-wall steel jacket 2;
s4, placing the hollow pin shaft 1 and the thin-wall steel outer sleeve 2 into a vulcanization glue injection mold, performing glue injection vulcanization, and vulcanizing the hollow pin shaft 1, the thin-wall steel outer sleeve 2 and rubber into a whole to form the thrust rod full-hollow rubber ball pin.
The ball pin prepared by the method has the advantages of simple process and high production efficiency, and can obviously improve the material utilization rate and reduce the cost and the weight of the ball pin.
Claims (6)
1. A full hollow rubber ball pin is characterized by comprising a hollow pin shaft, a thin-wall steel outer sleeve and a rubber lining layer;
the thin-wall steel outer sleeve is sleeved outside the hollow pin shaft, and the rubber lining is filled between the thin-wall steel outer sleeve and the hollow pin shaft in an integrated glue injection and vulcanization mode.
2. The all-hollow rubber ball pin according to claim 1, wherein the hollow pin shaft is made of 35CrMo or 42CrMo thick-walled seamless steel pipe with an outer diameter of 35-44mm and a wall thickness of 7-12 mm.
3. The all-hollow rubber ball pin according to claim 1, wherein the hollow pin shaft is provided with round holes at both ends.
4. A method for preparing the all-hollow rubber ball pin according to any one of claims 1 to 3, characterized in that the method comprises the following steps:
s1, heating the two ends of the seamless steel pipe, and then flattening and forming to form the hollow pin shaft;
s2, carrying out modulation heat treatment and shot blasting phosphating treatment after drilling on the flattened hollow pin shaft;
s3, carrying out phosphating treatment after blanking of the thin-wall steel jacket;
and S4, placing the hollow pin shaft and the thin-wall steel outer sleeve into a vulcanization glue injection mold, injecting glue and vulcanizing, and vulcanizing the hollow pin shaft, the thin-wall steel outer sleeve and the rubber into a whole to form the full hollow rubber ball pin.
5. The production method according to claim 4, wherein in step S1, the seamless steel pipe is a 35CrMo or 42CrMo thick-walled seamless steel pipe with an outer diameter of 35-44mm and a wall thickness of 7-12 mm.
6. The preparation method according to claim 4, wherein in step S2, holes are drilled at two ends of the hollow pin shaft after the modulation and heat treatment, and then shot blasting and phosphating are performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210070591.4A CN114393776A (en) | 2022-01-21 | 2022-01-21 | Full-hollow rubber ball pin and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210070591.4A CN114393776A (en) | 2022-01-21 | 2022-01-21 | Full-hollow rubber ball pin and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114393776A true CN114393776A (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210070591.4A Pending CN114393776A (en) | 2022-01-21 | 2022-01-21 | Full-hollow rubber ball pin and preparation method thereof |
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| CN (1) | CN114393776A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471943A (en) * | 2017-07-19 | 2017-12-15 | 十堰宝钻橡塑科技有限公司 | Rubber bushing for thrust rod assembly is wrapped up in a kind of lightweight entirely |
| CN110345151A (en) * | 2018-04-03 | 2019-10-18 | 博戈橡胶塑料（株洲）有限公司 | A kind of closed hollow core shaft and the vibration damping flexural pivot using the mandrel |
| CN214215417U (en) * | 2020-12-15 | 2021-09-17 | 山东美晨工业集团有限公司 | Thrust rod with curled edge structure |
-
2022
- 2022-01-21 CN CN202210070591.4A patent/CN114393776A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471943A (en) * | 2017-07-19 | 2017-12-15 | 十堰宝钻橡塑科技有限公司 | Rubber bushing for thrust rod assembly is wrapped up in a kind of lightweight entirely |
| CN110345151A (en) * | 2018-04-03 | 2019-10-18 | 博戈橡胶塑料（株洲）有限公司 | A kind of closed hollow core shaft and the vibration damping flexural pivot using the mandrel |
| CN214215417U (en) * | 2020-12-15 | 2021-09-17 | 山东美晨工业集团有限公司 | Thrust rod with curled edge structure |
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