CN112128316A - High-wear-resistance self-lubricating chain - Google Patents
High-wear-resistance self-lubricating chain Download PDFInfo
- Publication number
- CN112128316A CN112128316A CN202011128163.XA CN202011128163A CN112128316A CN 112128316 A CN112128316 A CN 112128316A CN 202011128163 A CN202011128163 A CN 202011128163A CN 112128316 A CN112128316 A CN 112128316A
- Authority
- CN
- China
- Prior art keywords
- chain
- pin shaft
- composite coating
- lubricating
- wear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/05—Features relating to lubrication or cooling or heating of chains
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
A high abrasion-resistant self-lubricating chain relates to the technical field of chain transmission and comprises an inner chain plate, an outer chain plate, a sleeve, a roller and a pin shaft, wherein an abrasion-resistant self-lubricating coating is arranged on the surface of the pin shaft; the sleeve is an oil-containing sleeve subjected to process treatment; the wear-resistant self-lubricating coating is a composite coating; the composite coating is a Ni-P-graphite chemical composite coating. The Ni-P-graphite chemical composite coating is arranged on the surface of the pin shaft, and the sleeve is arranged to be the oil-containing sleeve, so that the wear resistance of the chain is greatly improved, the chain is particularly suitable for a special working environment which is not convenient to maintain by using lubricating oil, and the chain is free of maintenance for the whole life.
Description
Technical Field
The invention belongs to the technical field of chain transmission, and particularly relates to a high-wear-resistance self-lubricating chain.
Background
At present, with the continuous development of the chain transmission industry, the types of chains are more and more, the chain performance required by customers is higher and higher, and even some customers seek the maintenance-free chain for the whole life, the service life of the chain is the same as that of the chain, so that the chain has high requirements on the wear resistance and the self-lubricating property.
The traditional chain generally increases the wear resistance of the chain by increasing the strength, hardness and the like of the material or the surface of the material, and can effectively reduce the wear by improving the lubrication state of a wear interface, and usually, a liquid or paste lubricant is added and injected on the wear interface. However, with the rapid development of industry and science and technology, the use environment of the chain is more and more, and lubricating oil or lubricating grease used under certain working conditions cannot meet the requirements of customers.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the high-wear-resistance self-lubricating chain which is free of maintenance in the using process, higher in wear resistance compared with the existing maintenance-free chain, and suitable for occasions which have higher requirements on working environments such as packaging, printing and spinning and are inconvenient to coat lubricating oil or are not allowed to coat lubricating oil.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a high-abrasion-resistance self-lubricating chain comprises an inner chain plate, an outer chain plate, a sleeve, a roller and a pin shaft, wherein an abrasion-resistance self-lubricating coating is arranged on the surface of the pin shaft.
Preferably, the sleeve is an oil-containing sleeve subjected to process treatment.
Preferably, the wear-resistant self-lubricating coating is a composite coating.
Preferably, the composite plating layer is a Ni-P-graphite chemical composite plating layer.
Preferably, the Ni-P-graphite chemical composite coating needs to be subjected to heat treatment at 400 ℃ for at least 1 hour after being formed; after heat treatment, the Ni-P-graphite chemical composite coating is changed from amorphous state to crystalline state, and the crystalline state stable phase nickel-phosphorus intermetallic compound Ni generated in the heat treatment process3P is a hard phase, thereby increasing the hardness of the plating.
Preferably, the processing technology of the Ni-P-graphite chemical composite coating is as follows: cutting off the raw material of the pin shaft; performing fillet treatment on the end part of the pin shaft after cutting; carrying out heat treatment on the round-corner treated pin shaft; carrying out circular grinding on the outer wall of the pin shaft after heat treatment; polishing the outer surface of the round pin shaft; plating a Ni-P-graphite chemical composite plating layer on the outer surface of the pin shaft; carrying out heat treatment on the Ni-P-graphite chemical composite coating at 400 ℃ for at least 1 hour; and polishing the outer surface of the Ni-P-graphite chemical composite coating.
The invention has the beneficial effects that:
the Ni-P-graphite chemical composite coating is arranged on the surface of the pin shaft, and the sleeve is arranged to be the oil-containing sleeve, so that the wear resistance of the chain is greatly improved, the chain is particularly suitable for a special working environment which is not convenient to maintain by using lubricating oil, and the chain is free of maintenance for the whole life.
Drawings
FIG. 1, a front view and a cross-sectional view of the chain construction of the present invention;
FIG. 2 is a schematic diagram of a Ni-P-graphite chemical composite coating on the surface of the pin shaft according to the present invention;
1: inner link plate, 2: outer link plate, 3: sleeve, 4: roller, 5: pin shaft, 6: pin shaft base, 7: Ni-P-graphite chemical composite coating.
Detailed Description
In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.
A high-wear-resistance self-lubricating chain is shown in figures 1 and 2 and comprises an inner chain plate 1, an outer chain plate 2, a sleeve 3, a roller 4 and a pin shaft 5, wherein a wear-resistance self-lubricating coating is arranged on the surface of the pin shaft 5;
the sleeve 3 is an oil-containing sleeve subjected to process treatment;
the wear-resistant self-lubricating coating is a composite coating;
as shown in fig. 2, the composite plating layer is a Ni-P-graphite chemical composite plating layer 7;
the Ni-P-graphite chemical composite coating 7 needs to be subjected to heat treatment at 400 ℃ for at least 1 hour after being formed; after heat treatment, the Ni-P-graphite chemical composite coating 7 is changed from an amorphous state to a crystalline state, and a crystalline state stable phase nickel-phosphorus intermetallic compound Ni is generated in the heat treatment process3P is a hard phase, thereby improving the hardness of the plating;
the processing technology of the Ni-P-graphite chemical composite coating 7 comprises the following steps: cutting off the raw material of the pin shaft; performing fillet treatment on the end part of the pin shaft after cutting; carrying out heat treatment on the round-corner treated pin shaft; carrying out circular grinding on the outer wall of the pin shaft after heat treatment; polishing the outer surface of the round pin shaft; plating a Ni-P-graphite chemical composite plating layer on the outer surface of the pin shaft; carrying out heat treatment on the Ni-P-graphite chemical composite coating at 400 ℃ for at least 1 hour; polishing the outer surface of the Ni-P-graphite chemical composite coating;
the sleeve is an oil-containing sleeve subjected to process treatment.
The use principle of the invention is as follows:
the outer surface of the pin shaft is provided with the Ni-P-graphite chemical composite coating, the composite coating is formed by adding graphite particles on the basis of the traditional chemical nickel plating, and the specific plating process is not repeated.
The composite plating layer formed after adding the graphite particles can ensure the corrosion resistance and acid and alkali resistance of the traditional chemical nickel plating and the surface high hardness characteristic (the HV of the surface of the Ni-P-graphite chemical composite plating layer can reach 1000), and meanwhile, an antifriction film can be formed on the surface of the pin shaft by the graphite particles in the using process of the chain, so that the friction coefficient of the surface of the plating layer is greatly reduced, the self-lubricating function is realized, and the abrasion loss of the chain can be greatly reduced through the high wear resistance and the self-lubricating function.
Because two most important parts influencing the wear resistance of the chain are the sleeve and the pin shaft, the invention improves the pin shaft technology, and simultaneously sets the sleeve as an oil-containing sleeve (related processes are disclosed and are not described in detail), and the service life of the chain can be greatly prolonged through the oil-containing sleeve and the pin shaft provided with the Ni-P-graphite chemical composite coating, so that the chain can be free of maintenance throughout the life.
Claims (6)
1. The utility model provides a high wear-resisting self-lubricating chain, includes inner plate, outer plate, sleeve, roller, round pin axle, characterized in that: the surface of the pin shaft is provided with a wear-resistant self-lubricating coating.
2. A highly wear-resistant self-lubricating chain as set forth in claim 1, wherein: the sleeve is an oil-containing sleeve subjected to process treatment.
3. A highly wear-resistant self-lubricating chain as set forth in claim 2, wherein: the wear-resistant self-lubricating coating is a composite coating.
4. A highly wear-resistant self-lubricating chain as set forth in claim 3, wherein: the composite coating is a Ni-P-graphite chemical composite coating.
5. A highly wear-resistant self-lubricating chain as set forth in claim 4, wherein: the Ni-P-graphite chemical composite coating needs to be subjected to heat treatment at 400 ℃ for at least 1 hour after being formed.
6. A highly wear-resistant self-lubricating chain as set forth in claim 4, wherein: the processing technology of the Ni-P-graphite chemical composite coating comprises the following steps: cutting off the raw material of the pin shaft; performing fillet treatment on the end part of the pin shaft after cutting; carrying out heat treatment on the round-corner treated pin shaft; carrying out circular grinding on the outer wall of the pin shaft after heat treatment; polishing the outer surface of the round pin shaft; plating a Ni-P-graphite chemical composite plating layer on the outer surface of the pin shaft; carrying out heat treatment on the Ni-P-graphite chemical composite coating at 400 ℃ for at least 1 hour; and polishing the outer surface of the Ni-P-graphite chemical composite coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128163.XA CN112128316A (en) | 2020-10-21 | 2020-10-21 | High-wear-resistance self-lubricating chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128163.XA CN112128316A (en) | 2020-10-21 | 2020-10-21 | High-wear-resistance self-lubricating chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112128316A true CN112128316A (en) | 2020-12-25 |
Family
ID=73852702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011128163.XA Pending CN112128316A (en) | 2020-10-21 | 2020-10-21 | High-wear-resistance self-lubricating chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112128316A (en) |
-
2020
- 2020-10-21 CN CN202011128163.XA patent/CN112128316A/en active Pending
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