CN201363394Y

CN201363394Y - Lubricating structure of chain

Info

Publication number: CN201363394Y
Application number: CNU2008201846879U
Authority: CN
Inventors: 王文滨
Original assignee: YABAN CHAIN INDUSTRIAL Co Ltd
Current assignee: YABAN CHAIN INDUSTRIAL Co Ltd; Yaban Chain Ind Co Ltd
Priority date: 2008-12-29
Filing date: 2008-12-29
Publication date: 2009-12-16
Anticipated expiration: 2018-12-29

Abstract

The utility model relates to a lubricating structure of a chain, which is used for a chain component, and is characterized in that the lubricating structure of the chain comprises a first lubricating layer and a second lubricating layer, wherein the first lubricating layer is an electroless nickel layer coated on the surface of the chain component; the second lubricating layer is a PTFE alloy layer coated on the surface of the first lubricating layer, and comprises PTFE with the volume percentage of 3 to 35 vol percent; and consequently, the lubricating structure of the chain can lubricate automatically, improves the surface hardness of the chain, prolongs the service life, and does not impact the tensile strength of the chain.

Description

The lubricating structure of chain

Technical field

The utility model is relevant for a kind of chain, and is relevant with the lubricating structure of chain, but self oiling, and increase the chain surface hardness, increase working life, and do not influence its tensile strength.

Background technique

Chain is after assembling is finished, in the Lubricants that need impregnated in the tool temperature and liquefy, when replying normal temperature, Lubricants becomes thick lubricant oil, and evenly be coated on the chain, when using, dense heavy lubricating oil with the passing of time can consume minimizing, and chain can cover silt gradually, sometimes silt also can be in conjunction with remaining lubricant oil, cause the smooth degree of chain to reduce, even and re-use aqueous Lubricants, also can block because of the lubricant oil that combines silt, and making aqueous Lubricants can't infiltrate the chain rivet inside of chain, the running of chain is still and has some setbacks, and chain rivet gets rusty easily, when chain used again, its lubricant oil stain clothes accidentally because of the user easily.

In addition, the TaiWan, China certificate number is counted " improved type bicycle chain " M275160 number, it also has above-mentioned disappearance, as shown in Figure 8, bury in the incoming link roll B after the inward flange A1 assembling of this chain sheet A, cause lubricant oil can't flow into chain rivet C smoothly, chain rivet C gets rusty easily, and increases the abrasion of chain sheet A and working life of reducing chain.

The model utility content

The purpose of this utility model is to provide a kind of lubricating structure of chain, but self oiling, and increase the chain surface hardness, increase working life, and do not influence its tensile strength.

For reaching above-mentioned purpose, the technical solution of the utility model is:

A kind of lubricating structure of chain is used for chain assemblies, it is characterized in that: lubricating structure includes: first lubricating layer, be coated in the chain assemblies surface, and thickness is the 2-5 micron, is a no electrolysis nickel dam; Second lubricating layer is coated in first lubricant layer surface, and thickness 2-8 micron is a polytetrafluoroethylalloy alloy layer, comprises the teflon that percentage by volume is 3-35vol%.

This chain assemblies is any or its combination of chain roller, chain rivet, inner chain sheet, outer chain sheet or lining.

This chain assemblies is to be its material with the 8th family's element.

No electrolysis nickel dam comprises: weight percent is the phosphorus of 6～13wt% and the nickel of 87～94wt%.

The polytetrafluoroethylalloy alloy layer contains percentage by volume: the teflon of 20-35vol%, its density are 5.9-6.8g/cm ³, weight percent is 6-12.5wt%.

It is the phosphorus of 7.5～10wt%, the nickel of 77～86wt% that this polytetrafluoroethylalloy alloy layer more contains weight percent.

On second lubricating layer, more be coated with strengthened layer or baking vanish layer wherein any.

After adopting such scheme, the utlity model has following advantage:

1. first lubricating layer of the present utility model is no electrolysis nickel dam, its plated film is even, adhesive quality is strong, hardness is high, abrasion performance, corrosion stability are good, can weld, coating hardness (HRC50) more than the HV500 degree, as coating hardness can reach HV1000 degree (HRC70) through handling then again, can promote the hardness of chain configurations.

2. second lubricating layer of the present utility model is with teflon (Polytetrafluoroethylene; PTFE) particle with specific content (3～32vol%) % eutectoid have following characteristics in no electrolysis nickel dam, so that the chain greasisng function to be provided:

(1) low coefficient of friction, minimum in nearly all solid, so lubricity is good.

(2) the good temperature tolerance of spy.

(3) extremely strong chemical stability is corroded by any chemicals hardly.

(4) surface viscosity not.

(5) You Yi electrical insulation capability, the stable and value minimum of permittivity in the frequency range of broadness.

(6) splendid ageing-resistant performance is not subjected to oxygen, ozone, action of ultraviolet radiation.

(7) extremely valuable incombustibility.

(8) minimum water absorption rate.

3. the no electrolysis nickel dam that uses of the utility model can be plated on the 8th family's element and alloy, stainless steel, copper and alloy thereof, aluminium and alloy thereof, titanium and alloy thereof and magnesium and the chain assemblies of alloy as material thereof, and application is quite extensive.

Description of drawings

Fig. 1 is the assembled sectional view of the utility model first embodiment's chain assemblies;

Fig. 2,2A are the sectional view and the local enlarged diagram of inner chain sheet structure among the utility model first embodiment;

Fig. 3,3A are the sectional view and the local enlarged diagram of the utility model first embodiment China and foreign countries chain chip architecture;

Fig. 4,4A are the sectional view and the local enlarged diagram of the utility model first embodiment's medium chain roll structure;

Fig. 5,5A are the utility model first embodiment's medium chain axle construction schematic representation and local amplification view;

Fig. 6 is the sectional view of the utility model second embodiment's chain;

Fig. 7,7A are the sectional view and the local enlarged diagram of bush structure among the utility model second embodiment;

Fig. 8 is known chain structure schematic representation.

The primary component symbol description

1 inner chain sheet, 11 first pivoted holes, 12 first lubricating layers

13 second lubricating layers, 2 outer chain sheets, 21 second pivoted holes

22 first lubricating layers, 23 second lubricating layers, 3 chain rollers

31 perforation, 32 first lubricating layers, 33 second lubricating layers

4 chain rivets, 41 first lubricating layers, 42 second lubricating layers

5 linings, 51 perforation, 52 first lubricating layers

53 second lubricating layer A chain sheet A1 inward flanges

B chain roller C chain rivet

Embodiment

The utility model first embodiment is a kind of lubricating structure of chain, is used in chain assemblies, is to be that iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum and alloy thereof are main material with the 8th family's element, please refer to shown in Figure 1ly, and chain assemblies comprises:

Inner chain sheet 1 is one group two, is oppositely arranged, and this inner chain sheet 1 is provided with first pivoted hole 11.Please refer to shown in Fig. 2, the 2A, this inner chain sheet 1 is provided with first lubricating layer 12 and second lubricating layer 13, wherein:

First lubricating layer 12 is coated in inner chain sheet 1 surface, thickness is 2-5 micron (μ m), is a no electrolysis nickel dam, and it is the phosphorus of 6～13wt% and the nickel of 87～94wt% that this no electrolysis nickel dam comprises weight percent, no electrolysis nickel dam phosphorus accounts for 11wt% among this first embodiment, and nickel accounts for 89wt%.The no electrolysis nickel dam physical property of various different phosphate, nickel ratio is summarized as follows table one:

Model specification	9151	115	754
Model specification	9151	115	754	Tissue	The sheet particle	Particle	Particle
Gloss	Gloss	Semimat	Semimat	Tissue	The sheet particle	Particle	Particle
Gloss	Gloss	Semimat	Semimat	Phosphorus content (wt%)	6-9	11-13	7-9
Fusing point	960℃	860℃	890℃	Phosphorus content (wt%)	6-9	11-13	7-9

Proportion	8.2	7.9	8.0
Proportion	8.2	7.9	8.0	Electrical impedance μ Ω/cm	60	60	60
Thermal expansion coefficients μ m/m* ℃	13-15	13	15	Electrical impedance μ Ω/cm	60	60	60
Thermal expansion coefficients μ m/m* ℃	13-15	13	15	Hardness (HV)	619	556	594
Through 350 ℃, the hardness (HV) after the heating in 1 hour	1009	1002	1130	Hardness (HV)	619	556	594
	1009	1002	1130	Stress	Half compression	Compression	Compression
Magnetic	Micromagnetism	Nonmagnetic	Nonmagnetic	Stress	Half compression	Compression	Compression
Magnetic	Micromagnetism	Nonmagnetic	Nonmagnetic	Adherence (psi)	50000-70000	50000-70000	50000-70000
Corrosion resistance	○	◎	◎	Adherence (psi)	50000-70000	50000-70000	50000-70000
Corrosion resistance	○	◎	◎	Drug-resistant	○	◎	◎
Homogeneity	Below ± 5%	Below ± 5%	Below ± 5%	Drug-resistant	○	◎	◎
Homogeneity	Below ± 5%	Below ± 5%	Below ± 5%	Speed of separating out (μ m/hr)	22	15	15
Lead content	Do not detect	100ppm	650ppm	Speed of separating out (μ m/hr)	22	15	15

Again, this no electrolysis nickel dam can be plated on the 8th family's element and alloy, stainless steel, copper and alloy thereof, aluminium and alloy thereof, titanium and alloy thereof and magnesium and the alloy thereof, and application is quite extensive.

Second lubricating layer 13 is coated in first lubricating layer, 12 surfaces, and thickness 2-8 micron (μ m) is a polytetrafluoroethylalloy alloy layer, is with teflon (Polytetrafluoroethylene; PTFE) (3～32vol%) disperse eutectoid in no electrolysis nickel dam to particle, comprise the polytetrafluoroethylene (PTFE) that percentage by volume is 3-35vol% with specific content.This first embodiment adopts polytetrafluoroethylalloy alloy layer percentage by volume to be: the teflon of 20-35vol%, its density are 5.9-6.8g/cm ³So the weight percent that converts is 6-12.5wt%, and to contain weight percent be the phosphorus of 7.5～10wt%, the nickel of 77～86wt%, also can carry out following process on second lubricating layer 13, for example plates the titanium nitride layer as strengthened layer or with the baking vanish processing.

Table two is that formed polytetrafluoroethylalloy alloy layer physical property compares behind no electrolysis nickel dam and the polytetrafluoroethylparticle particle that adds different proportion:

Table three is that the friction factor of polytetrafluoroethylalloy alloy layer and known low coefficient of friction material compares:

	Static friction coefficient	The coefficient of kinetic friction
	Static friction coefficient	The coefficient of kinetic friction	The polytetrafluoroethylalloy alloy layer	0.134	0.097

No electrolytic nickel	0.191	0.144
No electrolytic nickel	0.191	0.144	Cold rolled stainless steel sheet (SPCC)	0.507	0.427
Copper	0.232	0.146	Cold rolled stainless steel sheet (SPCC)	0.507	0.427
Copper	0.232	0.146	Aluminium	0.171	0.106

Outer chain sheet 2 is one group two, is relatively arranged on inner chain sheet 1 outside, and this outer chain sheet 2 is provided with second pivoted hole 21, first pivoted hole 11 of these second pivoted hole, 21 corresponding inner chain sheets 1.Please refer to shown in Fig. 3, the 3A, this outer chain sheet also is provided with first lubricating layer 22 and second lubricating layer 23, and its characteristic please refer to the description of inner chain sheet 1, repeats no more in this.

Chain roller 3 for circular, has perforation 31, is located between each group inner chain sheet 1.Please refer to shown in Fig. 4, the 4A, this chain roller 3 also is provided with first lubricating layer 32 and second lubricating layer 33, and its characteristic please refer to the description of inner chain sheet 1.

Chain rivet 4 wore the perforation 31 of chain roller 3, and was articulated in first pivoted hole 11 of each adjacent outer chain sheet second pivoted hole 21 and inner chain sheet 1.Please refer to shown in Fig. 5, the 5A, this chain rivet 4 also is provided with first lubricating layer 41 and second lubricating layer 42, and its characteristic please refer to the description of inner chain sheet 1.

Second embodiment of the present utility model is a kind of lubricating structure of chain, please refer to shown in Figure 6, be with first embodiment's difference, this second embodiment's chain assemblies more has additional lining 5, has a perforation 51, establishes between each group inner chain sheet 1, and be located in the aforesaid chain roller 3 and turn, shown in Fig. 7,7A, this lining 5 also is provided with first lubricating layer 52 and second lubricating layer 53, and its characteristic please refer to first embodiment's inner chain sheet 1 and describes.

Comprehensively above-mentioned, each first lubricating layer 12,22,32,41,52 of each embodiment of the utility model is no electrolysis nickel dam, its plated film is even, adhesive quality is strong, hardness is high, abrasion performance, corrosion stability are good, can weld, coating hardness is at the above HRC50 of HV500 degree, as coating hardness can reach HV1000 degree HRC70 through handling then again, can promote the hardness of chain configurations.Again, each second lubricating layer 13 of each embodiment of the utility model, 23,33,42,53 is the polytetrafluoroethylalloy alloy layer, has low coefficient of friction, know by table three, the more known low coefficient of friction material of the friction factor of polytetrafluoroethylalloy alloy layer is lower, so lubricity is good, and has a not stickiness of surface, avoid sticking dirt and the running of chain is had some setbacks, and the temperature tolerance that the second lubricating layer tool is special good, electrical insulating property, ageing resistance, incombustibility, chemical stability is strong, minimum water absorption rate, so chain of the present utility model can use for a long time and not take normal replacing, but be a self oiling in fact, and increase the chain surface hardness, increase working life, and do not influence the lubricating structure of the chain of its tensile strength.

Claims

1. the lubricating structure of a chain is used for chain assemblies, it is characterized in that: lubricating structure includes:

First lubricating layer is coated in the chain assemblies surface, and thickness is the 2-5 micron, is a no electrolysis nickel dam;

Second lubricating layer is coated in first lubricant layer surface, and thickness 2-8 micron is a polytetrafluoroethylalloy alloy layer.

2. the lubricating structure of chain as claimed in claim 1 is characterized in that: this chain assemblies is any or its combination of chain roller, chain rivet, inner chain sheet, outer chain sheet or lining.

3. the lubricating structure of chain as claimed in claim 1 is characterized in that: this chain assemblies is to be its material with the 8th family's element.

4. the lubricating structure of chain as claimed in claim 1 is characterized in that: on second lubricating layer, more be coated with strengthened layer or baking vanish layer wherein any.