UA53144C2 - A reducer lubricant - Google Patents

Abstract

A reducer lubricant contains oil tar, bitumen, octol, sulphur, antifoaming polymethylsiloxane liquid PMS-200A and composition of additives which contains S, P, N. As bitumen the lubricant contains highly resinous oil residues oxidation product with a more extended softening temperature range in the ring and the bead - 45-80 DEGREE C and needle penetration depth at the temperature of 25 DEGREE C - 20-90 ??10-1 mm, and as octol it contains the product of polymerization of isobutylene and n-butenes at a molecular mass of 600-1500.

Description

The invention belongs to lubricants and relates to the component composition of anti-friction gear lubricant for open gears operating under high loads and high sliding speeds at temperatures from minus 157C to 10076C.

The friction process in gears is determined mainly by sliding friction. In connection with high loads and high sliding speeds, high demands are placed on the anti-wear and anti-seize properties of gear lubricants.

Gear lubricant should first of all reduce the wear of the friction surface, prevent galling and seizing in the places of contact of the teeth, stay on the friction surface, which is determined by its adhesive properties /stickiness/ and ability to resist the action of moisture.

The second equally important function of gear lubricant is heat dissipation, as well as easy enough penetration into the contact points of the teeth and reliable protection against corrosion.

As lubricants for open gears, such lubricants |1) are known, such as lubricant OR /OMmo656661/ of Czechoslovak production. This is a high-viscosity petroleum oil with a viscosity at 1007C /U 1002C/ 380-450mm2/s.e. OP grease is characterized by a low droplet temperature - /152С/, which does not allow its use in conditions of elevated temperatures.

The well-known Koral 505 lubricant of Hungarian production is petroleum oil thickened with graphite /3.5905/ with the addition of an anti-corrosion additive.

TSYKOF-10 lubricant is similar in type and purpose to Koral 505 lubricant - petroleum oil /U 1007С - 225 mmg/s/ thickened with Mamyl /695/. The disadvantage of Koral 505 and TSYKOF-10 lubricants is that they have a solid consistency, so they should be used only when heated.

Patented plastic lubricant |21| for open gears, containing a mixture of components by weight: complex-calcium soap 15-35, polyisobutylene 20-45, oxidized brightstock 10-15 and anti-fraction additives /graphite, MO5", carbon black/ 5-20. This lubricant is usable up to 1007.

It is known that plastic lubricants on calcium, complex-calcium, sodium, aluminum soaps do not provide heat removal from friction zones. Therefore, the use of these lubricants in loaded high-speed gears that are operational for a long time is undesirable.

For open gears, it is recommended to use viscous lubricants based on bituminous compositions that dry on the surface, which prevents the penetration of dust and preserves the mobility of the inner layer of the lubricant.

Gear lubricant is the most famous and widespread lubricant used in open gears of powerful drives of rotary furnaces and forging and press equipment.

OZP-1 |4| - i/lprototype/, which includes petroleum tar fused with octol and bitumen and contains an anti-wear additive with this ratio of components, wt. 9o:

Bitumen petroleum grade BN 70/30 30.0

Octol 15.0

Technical sulfur 2.0

Tar oil rest

OZP-1I grease is operational in the temperature range from minus 5"C to plus 7070.

The significant disadvantages of this composition include low tribological characteristics, which limit the use of O3PP-1 lubricant at high loads and high sliding speeds. In addition, the use of O3P-1 lubricant is limited to a narrow temperature range. Thus, the low dripping temperature of the lubricant excludes the possibility of using it when heated in the friction zone up to 100"7C. At low temperatures, OZP-1 thickens strongly, ceases to be mobile, which prevents it from reaching the friction nodes - the contact points of the teeth.

All these shortcomings negatively affect the operation of the equipment.

The task of this invention is to improve the functional properties of gear oil for gears by selecting a component composition that is able to provide anti-wear, anti-seize, antioxidant and anti-corrosion properties in a wider temperature range from minus 157C to plus 10070.

This task is achieved by the fact that the lubricant based on the residual products of oil processing - oil tar, as a softener component that gives the composition plasticity, contains the product of oxidation of highly resinous oil residues /bitumen/ with a more extended interval in comparison with the prototype of the softening temperature according to ring and ball in the range of 45-80"C and the depth of needle penetration at 25"C in the range of 200-90-10" mm, which acts as a structure stabilizer, binding and waterproof ingredient.

To thicken the components and provide high adhesive, conservation and anti-wear properties, anti-friction additives are added to the composition of the declared lubricant - a product of the polymerization of isobutylene and n-butenes /Octol/ with a molecular weight /m.m./ 600-1500 and sulfur.

According to the invention, the gear lubricant additionally contains an antifoam polymethylsiloxane liquid

PMO-200A and a composition of modern high-quality additives, which contains 5, P, M to improve the anti-seize, anti-wear and anti-oxidizing properties of the lubricant at this ratio of components, because mass: the product of oxidation of high-resin oil residues with a softening temperature behind the ring and ball of 45-807С and the depth of needle penetration at 252C 20-90-10"" mm 15.0-36.0 isobutylene and n-butene polymerization product with m.m. 600-1500 5.0-12.0 technical sulfur 0.6-3.0 antifoam additive PMO-200A 0.002-0.005 a composition of additives that contains

ZR, /anti-caking, 0.5-2.0 anti-wear and antioxidant/ residual product of oil processing, the rest

The component composition of the claimed composition with the indicated content of the above ingredients, according to the scope of the patent requirements, allows to obtain a new, more effective gear lubricant for open gears, which is operable in a wider temperature range: from minus 157C to plus 100"7C with a significant higher loads and sliding speeds.

Table 1 shows the component composition of samples of the declared lubricant, and Table 2 shows their main characteristics, as well as the characteristics of the prototype and experimental industrial batch.

Table 1

The component composition of the declared lubricant

Me| 0 Contains 0,000 words of content

Oxidation product of highly resinous petroleum 6. | Residual product of oil processing - Gudron, | up to 100.0 | up to 100.0 | up to 100.0 | up to 100.0 | up to 100.0

Table 2

Physico-chemical quality indicators of the prototype "OZP-1 lubricant" and samples of the declared gear lubricant

Prototype Research

H|openeny KOH sonok nka zrvno zrka nk movement, 10 mm

Z. | Corrosive effect on metals: MI or MO copper Withstands | Withstands | Withstands | Withstands | Withstands |Withstands!| Withstands the advisor steel grade St.3 Withstands | Withstands | Withstands | Withstands | Sustains |Sustains| Withstands

Evaporation losses at 1007 b. |Micropenetration at OS, mm/LO | 13.0 | 23.6 | 212 | 185 | 239 | 21.6 | 237 four-ball machine welding load /Рз/, Н 2820 3550 4470 5010 5010 3980 5010 critical load /Рк/, Н 1000 1410 1780 1410 1780 1410 1780 burr index /з/, Н 45 64.7 68.9 677.6 ,8 75

It can be seen from the tables that the declared gear oil is significantly superior to the prototype.

So, if the tribological characteristics on the four-ball machine in OZP-1 are within the limits: welding load /Рз/, Н 2820 critical load /Ркр/, Н 1000 burr index, /Из/, Н 45 then for the declared lubricant they fluctuate within the limits:

Rz, H 3550-5010

Rkr, H 1410-1780

Iz, H 64-77

This makes it possible to use the declared gear lubricant when working with friction nodes of open gears at high loads and high sliding speeds. Micropenetration at 0"C in the OZP-1 lubricant is within 10-15 mm/10, and in the declared lubricant it is much higher and varies within the range of 18.5-24.0 mm/10.

This indicates the preservation of the mobility of the inner layer of the claimed composition at low temperatures, ensuring heat dissipation and easy penetration of the lubricant into the friction zone - the place of contact of the teeth. In addition, the new lubricant is characterized by a higher droplet temperature value than the prototype, which allows it to be used at 10020.

In addition, excellent conservation and protective properties in relation to ferrous and non-ferrous metals, high adhesion confirm the superiority of the declared lubricant.

Lubricant production is carried out on standard equipment in a periodic manner at atmospheric pressure in cookers - mixers equipped with mechanical movement and a casing for heating and cooling with an oil coolant (b).

The main stages and temperature regimes of the technological process of lubricant production are as follows (Table 3).

Table C

1. Loading of components: oil tar 70-90 polybutenes /octol-B, or octol-K, or Lubrizol 3108, or others/ -- antifoam additive PMO-200A -- 5. Loading of components: 77777111

All the components of the declared anti-fraction gear oil are well-known industrially produced products.

Thus, as residual products of oil processing, oil tar |7) or raw materials for the production of petroleum viscous road bitumen |8, 91 are used.

As a product of oxidation of high-resin oil residues - petroleum bitumen grade BN 70/30 (10), or petroleum bitumen grade BND 60/90 (11), or Azmol SV binder mixture grades 60/90, 20/70 (12) and others . As a product of the polymerization of isobutylene and n-butenes with m.m. 600-1500, use high-viscosity synthetic oil Octol grade B |13), abs Octol grade K |14, or additive Lubrizol 3108 (15), or other polybutenes of similar quality.

Sulfur technical natural hammer |16). As an antifoam additive - polymethylsiloxane PMO-200 A |17)| and as a composition of additives containing 5, P, M - Anglamol-99 (18), or Anglamol - 33 (19), or Anglamol 6085 (201, or Hitech 312 (21), or Hitech 320 (221, or zinc dialkyldithiophosphate - DF-11 (231 and others.

Test batches of the declared lubricant were tested at the Volga Automobile Plant and received a high evaluation of their quality.

Technical documentation for its production has been developed for the declared lubricant.

List of sources of information 1. Synitsn V.V. Plastic lubricants abroad. Directory. Moscow. "Chemistry", 1983. 2. US patent 3472770 /1969/. 3. VV Sinitsyn, Selection and use of plastic lubricants. Moscow, "Chemistry", 1974. 4. Fuel, lubricants, technical fluids. Reference book edited by V.M. Shkolnikova

Moscow, Tehinform, 1999. 5. TU 38. Ukrainian SSR 201117-81. 6. Technology of plastic lubricants Kyiv, Naukova Dumka, 1986. 7. TU 38 of the Ukrainian SSR 201181-74. 8. TU 38 101582-75. 9. TU U 00 149943-427-98. 10. GOST 6617-76. 11. GOST 22245-90. 12. TU U 00 152365.110-2000. 13. TU 38.301-49-18-93. 14. TU 38.101808-81. 15. Certificate of the company I ibgi2o!. USA. 16. GOST 127-76. 17. OST 6-02-20-79. 18, 19, 20 Certificate of the company I ibgi2o!, USA. 21, 22 Certificate of the company ESHPU!, USA. 23. TU 38.5901254-90.

Claims (1)

A reducing lubricant containing petroleum tar, bitumen, octol and sulfur, which is distinguished by the fact that, like bitumen, it contains the oxidation product of highly resinous petroleum residues with a more extended softening temperature range for the ring and ball of 45-80 "C and a needle penetration depth at a temperature of 2526 - 20-90 10" mm, as octol - a product of the polymerization of isobutylene and n-butenes with a molecular weight of 600-1500 and additionally contains antifoam polymethylsiloxane liquid PMO-200A and a composition of additives containing 5, P, M with such a ratio of components, wt. 9o: oxidation product of high-resin oil residues 15.0-35.0 product of polymerization of isobutylene and n-butenes with a molecular weight of 600-1500 5.0-12.0 technical sulfur 0.5-3.0 antifoam polymethylsiloxane liquid PMO-200A 0.002-0.005 composition of additives containing 5, P, M 0.5-2.0 residual product of oil processing - tar up to 100.0.