A kind of robot rv reducer grease and preparation method thereof

A technology of reducer and lubricating grease, which is applied in the field of lubricating grease for robot RV reducer and its preparation, can solve the problems of inability to lubricate, poor extrusion wear resistance, easy softening and loss, etc., and achieve good high temperature stability and Oxidation stability, good low-temperature performance, and the effect of avoiding softening and loss

Active Publication Date: 2022-07-01
JIANGSU LOPALTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For large-scale industrial robots that are mostly used for high-intensity operations such as handling and welding, the reducer is the key to completing the work. Therefore, according to the working conditions of the industrial robot RV reducer, higher performance requirements are put forward for the grease. At present, the use of The lubricating grease for the RV reducer of industrial robots has disadvantages such as poor extrusion wear resistance, high temperature resistance, easy softening, loss and oxidative deterioration at high temperatures, and inability to lubricate at low temperatures.

Method used

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  • A kind of robot rv reducer grease and preparation method thereof
  • A kind of robot rv reducer grease and preparation method thereof
  • A kind of robot rv reducer grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This example prepares the robotic RV reducer grease as follows:

[0024] Step 1. Put 50% of the base oil and fatty acid into the saponification kettle, stir and heat to 75°C, until the fatty acid is completely dissolved;

[0025] Step 2: Add lithium hydroxide aqueous solution, control the saponification temperature at 95°C, and control the saponification time for 2h; after the saponification is completed, continue to heat up to 140°C, stir for 20min, then heat up to 205°C for high-temperature refining, and keep the temperature for 5min;

[0026] Step 3: Add the remaining base oil, quench to 165°C, turn the kettle, circulate and filter, cool down to 110°C, add antioxidants, antirust agents, extreme pressure antiwear agents and solid additives after homogenization, stir evenly, remove The finished product is obtained after gasification, and the addition ratio of each raw material component is shown in Table 1.

Embodiment 2

[0028] This example prepares the robotic RV reducer grease as follows:

[0029] Step 1. Put 50% of the base oil and fatty acid into the saponification kettle, stir and heat to 85°C, until the fatty acid is completely dissolved;

[0030] Step 2: Add lithium hydroxide aqueous solution, control the saponification temperature at 105°C, and control the saponification time for 2.5h; after the saponification is completed, continue to heat up to 150°C, stir for 30 minutes, and then heat up to 210°C for high-temperature refining, and keep the temperature for 10 minutes;

[0031] Step 3: Add the remaining base oil, quench to 175°C, turn the kettle, circulate and filter, cool down to 120°C, add antioxidants, antirust agents, extreme pressure antiwear agents and solid additives after homogenization, stir evenly, remove The finished product is obtained after gasification, and the addition ratio of each raw material component is shown in Table 1.

Embodiment 3

[0033] This example prepares the robotic RV reducer grease as follows:

[0034] Step 1. Put 60% of the base oil and fatty acid into the saponification kettle, stir and heat to 80°C, until the fatty acid is completely dissolved;

[0035] Step 2: Add lithium hydroxide aqueous solution, control the saponification temperature at 100°C, and control the saponification time for 2.2h; after the saponification is completed, continue to heat up to 145°C, stir for 25min, then heat up to 208°C for high-temperature refining, and keep the temperature for 8min;

[0036] Step 3: Add the remaining base oil, quench to 170°C, turn the kettle, circulate and filter, cool down to 115°C, add antioxidants, rust inhibitors, extreme pressure antiwear agents and solid additives after homogenization, stir evenly, remove The finished product is obtained after gasification, and the addition ratio of each raw material component is shown in Table 1.

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Abstract

The invention discloses a robot RV reducer lubricating grease and a preparation method thereof. The lubricating grease comprises the following raw material components by weight: 8-10 parts of fatty acid, 1-1.5 parts of lithium hydroxide, and 1-2 parts of antioxidant. parts, 1-2 parts of rust inhibitor, 3-5 parts of extreme pressure anti-wear agent, 3-5 parts of solid additive and 77.2-79.1 parts of base oil, the invention also provides a preparation method of the lubricating grease. The lubricating grease of the invention can effectively improve the anti-fretting wear, anti-shock load, shock absorption and noise reduction performance of the robot RV reducer, has good high and low temperature performance, anti-oxidation performance and anti-rust performance, and can meet the requirements of the robot RV reducer. The lubrication requirements of frequent start-up and frequent reciprocating motion characteristics; the method of the invention is simple to operate and easy to implement.

Description

technical field [0001] The invention relates to a lubricating grease and a preparation method thereof, in particular to a robot RV reducer lubricating grease and a preparation method thereof. Background technique [0002] The reducer is a mechanical transmission unit widely used in industrial robots. It is assembled with the servo motor and can accurately reduce the output speed of the servo motor to the speed required by each joint, so as to obtain sufficient rigidity and torque to drive the operation of the robotic arm. . RV reducers and harmonic reducers are commonly used in the joint parts of industrial robots. Among them, RV reducers are mainly assembled on the base, waist, big arm, forearm and other positions. The RV reducer has the characteristics of high strength and rigidity, good fatigue corrosion resistance, high transmission efficiency, high precision, and small hysteresis of the reducer. It is widely used in large and high-precision robots. [0003] For most o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/08C10N30/10C10N30/06
CPCC10M169/048C10M2201/062C10M2219/068C10M2223/045C10M2219/106C10M2223/04C10M2219/022C10M2213/062C10M2215/223C10M2201/085C10M2207/163C10M2205/022C10M2207/128C10M2207/126C10M2215/064C10M2215/065C10M2207/026C10M2219/044C10M2207/16
Inventor 朱国靖杨操
Owner JIANGSU LOPALTECH
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