CN117757543A - Robot lubricating material with low viscosity and high shearing resistance and preparation method thereof - Google Patents
Robot lubricating material with low viscosity and high shearing resistance and preparation method thereof Download PDFInfo
- Publication number
- CN117757543A CN117757543A CN202311601201.2A CN202311601201A CN117757543A CN 117757543 A CN117757543 A CN 117757543A CN 202311601201 A CN202311601201 A CN 202311601201A CN 117757543 A CN117757543 A CN 117757543A
- Authority
- CN
- China
- Prior art keywords
- lubricating material
- benzene ring
- low viscosity
- ring compound
- base grease
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 59
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000010008 shearing Methods 0.000 title claims abstract description 13
- 239000004519 grease Substances 0.000 claims abstract description 34
- -1 benzene ring compound Chemical class 0.000 claims abstract description 17
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 150000004671 saturated fatty acids Chemical class 0.000 claims abstract description 3
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims abstract description 3
- 150000004670 unsaturated fatty acids Chemical class 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 7
- 230000035515 penetration Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
The invention relates to a robot lubricating material with low viscosity and high shearing resistance and a preparation method thereof. Heating the base grease, adding the additive into the heated base grease, stirring and mixing, preserving heat for a period of time, and cooling to obtain the prepared lubricating material. The base grease is No. 0 or No. 00 low-viscosity base grease, the additive is a polyhydroxy benzene ring compound, and the molecular structure of the polyhydroxy benzene ring compound contains a C6-C18 saturated fatty acid long-chain structure or a C6-C18 unsaturated fatty acid long-chain structure. Compared with the prior art, the low-viscosity lubricating material prepared by the invention has the advantages that the cone penetration change value is smaller than 10% after shearing for 10 ten thousand times, the components of the prepared lubricating material are simple, the dosage is low, the comprehensive wear value is 545.9-556.1N, and the extreme pressure resistance is better. The polyhydroxy benzene ring compound promotes intermolecular force with basic grease, and maintains antifriction and antiwear properties of the lubricating material.
Description
Technical Field
The invention relates to the technical field of lubricating materials, in particular to a robot lubricating material with low viscosity and high shearing resistance and a preparation method thereof.
Background
Due to the influence of various factors such as labor cost, production efficiency, quality improvement and the like, the global industrial robot industry rapidly develops and grows in recent years, and the leading manufacturing industry in the world is realized in China, so that the high-end intelligent manufacturing can be preempted only by mastering the robot technology. Industrial robots, which are a special industrial machinery, can effectively improve production efficiency, accuracy and safety, reduce labor costs and error rates, but require specialized lubricants to assist. Aiming at the increasing demands of industries in the fields of intelligent manufacturing and high-end equipment on robots, the robot lubricating material plays an increasingly important role in reducing resistance, saving energy, improving efficiency, prolonging service life and the like.
Lubrication for industrial robots generally employs lubricating oils or greases, which are predominantly grease, to provide friction and wear protection. In order to provide better shear resistance, grease consistencies are typically used that are higher. For example, chinese patent CN111996063B provides a grease for industrial robots and a method for preparing the same, where the prepared grease has a long service life at high temperature and a low friction coefficient, but the grease has a consistency grade of No. 1 and a consistency grade close to No. 2, which indicates that the viscosity of the grease is higher, resulting in relatively higher energy consumption. Another chinese patent CN103476911B discloses a grease composition and a motion guide device lubricated with the grease composition, wherein the prepared grease composition can be used on a motion guide device of a robot for a clean room, and the grease has better low dust generation property and high load resistance, but has a consistency grade No. 2 or No. 3, and higher viscosity, which is not beneficial to energy saving. In recent years, with the increasing awareness of environmental protection, grease used in many industrial robot reducers has been developed to have low viscosity, and the grease with low viscosity has to be reduced in the period of grease change due to the low energy consumption, but also has to sacrifice other properties such as shearing resistance of the grease.
Therefore, there is a need to develop a lubricating material and a preparation method which have low viscosity, low energy consumption, high shear resistance, and are beneficial to energy conservation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a low-viscosity high-shear-resistance robot lubricating material and a preparation method thereof, and by adding a certain amount of additives into base grease, the antifriction and wear-resistance performances of the base grease can be maintained without changing the consistency of the base grease, and the shear resistance performance is not reduced, so that the oil change period is prolonged.
The aim of the invention can be achieved by the following technical scheme:
the invention provides a preparation method of a robot lubricating material with low viscosity and high shearing resistance, which specifically comprises the following steps: heating the base grease with a certain consistency, adding the additive into the heated base grease, stirring and mixing, preserving heat for a period of time, and cooling to obtain the prepared lubricating material;
the additive is a polyhydroxy benzene ring compound, and the molecular structure of the polyhydroxy benzene ring compound comprises a C6-C18 saturated fatty acid long-chain structure or a C6-C18 unsaturated fatty acid long-chain structure.
Further, the heating temperature is 50-60 ℃, and the heat preservation time is 2h.
Further, the molecular structure of the polyhydroxy benzene ring compound comprises one or more hydroxyl structures.
Further, the molecular structure of the polyhydroxy benzene ring compound comprises one or more phenyl structures.
Further, the base fat has a consistency of No. 00 or No. 0.
Further, the polyhydroxy benzene ring compound is added in an amount of 0.5wt.% to 5.0wt.%.
Further, the polyhydroxy benzene ring compound is added in the preparation process of the base grease or in the base grease of a finished product.
The invention also provides a robot lubricating material with low viscosity and high shearing resistance, and the replacement period of the robot lubricating material is 2-3 years.
Further, the average friction coefficient of the robot lubricating material is 0.066-0.067, and the abrasive spot diameter is 0.39-0.41mm.
Further, the maximum seizure-free load of the robot lubricating material is 1098N, the sintering load is 2453N, and the comprehensive abrasion value is 545.9-556.1N.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the polyhydroxy benzene ring compound improves the intermolecular acting force between the polyhydroxy benzene ring compound and the additive, maintains the antifriction and antiwear properties of the lubricating material, and does not need to change the original rheological properties of the lubricating material.
2. The lubricating material prepared by the invention can change the cone penetration value by less than 10% after being sheared for 10 ten thousand times.
3. The lubricating material prepared by the invention has the advantages of simple addition of components, low dosage and good suitability for basic grease and other additives.
Detailed Description
The following describes in detail specific embodiments of the present invention by way of examples, which are given as detailed embodiments and specific operation procedures based on the embodiments of the present invention, but the scope of the present invention is not limited to the examples described below.
The invention will be further elucidated with reference to the drawings and the specific embodiments. Features such as part model, material name, connection structure, preparation means, materials, structure or composition proportion which are not explicitly described in the technical scheme are all regarded as common technical features disclosed in the prior art.
Example 1
The embodiment provides a preparation method of a robot lubricating material with low viscosity and high shearing resistance, which comprises the following specific processes:
1kg of composite lithium base grease with the consistency grade of No. 00 and the cone penetration of 421 is weighed, heated to 60 ℃, added with 0.025kg of n-stearyl 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate under stirring, then stirred and mixed continuously, kept for 2 hours, and cooled to room temperature to obtain the prepared lubricating material A.
The embodiment also provides a robot lubricating material with low viscosity and high shearing resistance, wherein the replacement period of the robot lubricating material is 2-3 years, and the prepared lubricating material is applied to an industrial robot, so that friction can be effectively reduced, and the wear resistance can be improved.
Example 2
The embodiment provides a preparation method of a robot lubricating material with low viscosity and high shearing resistance, which comprises the following specific processes:
2kg of composite lithium base grease with the consistency grade of No. 00 and the cone penetration of 429 is weighed, heated to 50 ℃, added with 0.030kg of N, N' -bis- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylenediamine under stirring, then stirred and mixed continuously, kept for 2 hours, and cooled to room temperature to obtain the prepared lubricating material B.
Table 1 shows the results of experiments on the lubricating materials prepared in examples 1 and 2, in which the working cone penetration is the state of consistency of the lubricating material at the time of working, and the prolonged working cone penetration is the state of consistency change after simulating a long-term working condition, and the smaller the value, the more stable the lubricating material. The friction coefficient and the abrasive spot diameter are antifriction and antiwear properties of the lubricating material, and the smaller the friction coefficient is, the better the antifriction property of the lubricating material is, and the smaller the abrasive spot diameter is, the better the antiwear property of the lubricating material is. The maximum non-biting load is the maximum load which enables the test piece not to be bitten under the test condition; the sintering load is the load of sintering the test steel ball under the test condition; the integrated wear value is an index of the ability of the lubricating material to reduce wear to a small resistance to extreme pressure under an applied load, which three indices represent the extreme working ability of the lubricating material. Oxidation stability represents the antioxidant capacity of the lubricating material.
As is clear from table 1, the robot lubricating materials prepared in examples 1 and 2 all had the characteristic of low viscosity, and the cone penetration change after shearing 10 ten thousand times was less than 10%, indicating that the lubricating materials were excellent in shear stability. In addition, the average friction coefficient of the robot lubricating material was 0.066 or 0.067, and the plaque diameter was 0.39 or 0.41mm. The maximum seizure-free load of the robot lubricating material is 1098N, the sintering load is 2453N, and the comprehensive abrasion value is 556.1 or 545.9N. The lubricating material has excellent overall comprehensive performance from the aspects of antifriction, wear resistance, extreme pressure and oxidation resistance.
Test results of lubricating materials prepared in Table 1
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (10)
1. The preparation method of the robot lubricating material with low viscosity and high shearing resistance is characterized by comprising the following steps: heating the base grease with a certain consistency, adding the additive into the heated base grease, stirring and mixing, preserving heat for a period of time, and cooling to obtain the prepared lubricating material;
the additive is a polyhydroxy benzene ring compound, and the molecular structure of the polyhydroxy benzene ring compound comprises a C6-C18 saturated fatty acid long-chain structure or a C6-C18 unsaturated fatty acid long-chain structure.
2. The method for preparing the low-viscosity high-shear-resistance robot lubricating material according to claim 1, wherein the heating temperature is 50-60 ℃, and the heat preservation time is 2 hours.
3. The method for preparing a low viscosity, high shear resistant robotic lubricating material of claim 1, wherein the molecular structure of the polyhydroxy benzene ring compound comprises one or more hydroxyl structures.
4. The method for preparing a low viscosity, high shear resistant robotic lubricating material of claim 1, wherein the molecular structure of the polyhydroxy benzene ring compound comprises one or more phenyl structures.
5. The method of claim 1, wherein the base grease has a consistency of No. 00 or No. 0.
6. The method for preparing a low viscosity, high shear resistant robotic lubricating material of claim 1, wherein the polyhydroxy benzene ring compound is added in an amount of 0.5wt.% to 5.0wt.%.
7. The method for preparing a low viscosity, high shear resistant robotic lubricating material of claim 1, wherein the polyhydroxy benzene ring compound is added to the base grease during the preparation process or to the finished base grease.
8. A robot lubricating material prepared by the method of any one of claims 1 to 7, wherein the replacement cycle of the robot lubricating material is 2 to 3 years.
9. The low viscosity, high shear resistant robotic lubricating material of claim 8, wherein the robotic lubricating material has an average coefficient of friction of 0.066 to 0.067 and a plaque diameter of 0.39 to 0.41mm.
10. The low viscosity, high shear resistant robotic lubricating material of claim 8, wherein the robotic lubricating material has a maximum seizure free load of 1098N, a sintering load of 2453N, and a combined wear value of 545.9-556.1N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311601201.2A CN117757543A (en) | 2023-11-28 | 2023-11-28 | Robot lubricating material with low viscosity and high shearing resistance and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311601201.2A CN117757543A (en) | 2023-11-28 | 2023-11-28 | Robot lubricating material with low viscosity and high shearing resistance and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117757543A true CN117757543A (en) | 2024-03-26 |
Family
ID=90324676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311601201.2A Pending CN117757543A (en) | 2023-11-28 | 2023-11-28 | Robot lubricating material with low viscosity and high shearing resistance and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117757543A (en) |
-
2023
- 2023-11-28 CN CN202311601201.2A patent/CN117757543A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105838485B (en) | Lubricant composition and preparation method thereof | |
| CN111378520B (en) | MoS-containing 2 Water-soluble trace lubricating fluid | |
| CN115305129B (en) | Barium-based lubricating grease composition and preparation method and application thereof | |
| CN111019743A (en) | Coal-based total-synthesis low-temperature hydraulic oil and preparation method thereof | |
| CN111607450A (en) | Robot RV reducer lubricating grease and preparation method thereof | |
| CN107523387B (en) | Special lubricating oil for carbon film engine and preparation method thereof | |
| CN108165356B (en) | Cotton picker spindle lubricating grease and preparation method thereof | |
| CN109082335B (en) | High-temperature-resistant lubricating oil for powder metallurgy oil-retaining bearing and preparation method thereof | |
| CN108865339B (en) | Lubricating grease composition for axle box bearing of high-speed motor train unit and preparation method thereof | |
| CN108822939B (en) | White lithium-based lubricating grease and preparation method thereof | |
| CN102766500B (en) | High-base-number compound-sulfonic lithium/calcium composite lubricating grease and preparation method thereof | |
| CN112522006B (en) | Composite soap-based lubricating grease composition and preparation method thereof | |
| CN117757543A (en) | Robot lubricating material with low viscosity and high shearing resistance and preparation method thereof | |
| CN110144255A (en) | A kind of easy cleaning cold-heading molding oil and preparation method thereof | |
| CN105199817A (en) | Low-temperature lithium-calcium bearing lubricating grease and preparation method | |
| JP2002363589A (en) | Lubricating grease composition | |
| CN106939180B (en) | Extreme-pressure anti-wear lubricating oil/fat composition and preparation method thereof | |
| CN116240060A (en) | Synthetic high-service-life Wen Wochi lubricating oil and preparation method thereof | |
| CN104312678A (en) | Gear wear-resisting lubricating grease composition and preparation method thereof | |
| CN110257149B (en) | Environment-friendly lubricating oil | |
| CN111892972B (en) | Petrochemical first-grade extreme pressure composite lithium-based lubricating grease and preparation method thereof | |
| CN105219481B (en) | Automatic balance car lubricant composition and preparation method | |
| CN112522017B (en) | Composite barium-based lubricating grease and preparation method thereof | |
| CN103555397A (en) | Anhydrous calcium-based lubricating grease composition and preparation method thereof | |
| CN111019745B (en) | MoS-containing 2 Water insoluble trace amount of lubricating fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |