阅读说明：本技术 一种提升螺旋输送机螺旋轴寿命的处理方法 (Processing method for prolonging service life of spiral shaft of spiral conveyor ) 是由 徐涛 于 2020-07-06 设计创作，主要内容包括：本发明公开了一种提升螺旋输送机螺旋轴寿命的处理方法,涉及螺旋输送机的加工制造技术领域,包括如下步骤：(1)表面清洁处理、(2)喷丸处理、(3)涂料处理、(4)激光处理、(5)烘干处理。本发明处理方法整体工艺简单,各步骤搭配合理,易于大规模推广应用,处理后的螺旋轴具有很强的耐腐、耐候、耐磨等品质,使用寿命显著增加。(The invention discloses a processing method for prolonging the service life of a spiral shaft of a spiral conveyor, which relates to the technical field of processing and manufacturing of spiral conveyors and comprises the following steps: (1) surface cleaning treatment, (2) shot blasting treatment, (3) coating treatment, (4) laser treatment, and (5) drying treatment. The treatment method has the advantages of simple overall process, reasonable matching of all steps, easy large-scale popularization and application, strong corrosion resistance, weather resistance, wear resistance and other qualities of the treated spiral shaft, and obviously prolonged service life.)

1. A processing method for prolonging the service life of a spiral shaft of a spiral conveyor is characterized by comprising the following steps:

(1) surface cleaning treatment:

a. firstly, polishing the surface of the spiral shaft by using sand paper, and then wiping the surface once by using cotton cloth for later use;

b. b, immersing the spiral shaft processed in the operation a into cleaning solution, taking out after immersion cleaning treatment for 25-35 min, and then washing with deionized water for one time for later use;

c. putting the spiral shaft processed in the operation b into a drying box, drying for 3-5 hours, and taking out for later use;

(2) shot blasting:

performing surface shot blasting on the screw shaft processed in the step (1), and taking out for later use after the surface shot blasting is completed;

(3) treating the coating:

uniformly coating the prefabricated special coating on the surface of the spiral shaft treated in the step (2), and airing until the surface is dry for later use;

(4) laser processing:

performing surface laser treatment on the screw shaft treated in the step (3), and taking out for later use after the surface laser treatment is completed;

(5) drying treatment:

and (5) putting the spiral shaft processed in the step (4) into a drying box for drying treatment, and taking out after 5-8 hours.

2. The method as claimed in claim 1, wherein the sand paper used in the grinding process in step (1) is 300 meshes.

3. The method as claimed in claim 1, wherein the cleaning solution in step (1), operation b, is an acetone solution with a volume fraction of 20%.

4. The method as claimed in claim 1, wherein the drying process in operation c of step (1) is performed by controlling the temperature in the drying oven to 90-95 ℃.

5. The method as claimed in claim 1, wherein the media for blasting on the surface of the screw shaft of the screw conveyor in step (2) is corundum with a particle size of 180 mesh, the pressure of air flow during blasting is 0.45 to 0.50MPa, the distance between the nozzle and the workpiece is 100 to 105mm, and the blasting angle is 90 °.

6. The processing method for prolonging the service life of the spiral shaft of the spiral conveyor as claimed in claim 1, wherein the special coating in the step (3) is composed of the following substances in parts by weight: 75-80 parts of epoxy resin, 20-25 parts of phenolic resin, 7-10 parts of terpene resin, 8-10 parts of basalt fiber, 4-6 parts of sodium carboxymethyl cellulose, 1-2 parts of tetrasodium ethylene diamine tetraacetate, 10-12 parts of nonylphenol polyoxyethylene ether, 5-8 parts of ethyl acetate, 4-7 parts of nano titanium nitride and 1-3 parts of pigment and filler.

7. The treatment method for prolonging the service life of the spiral shaft of the spiral conveyor as claimed in claim 6, wherein the special coating is prepared from the following substances in parts by weight: 78 parts of epoxy resin, 24 parts of phenolic resin, 9 parts of terpene resin, 9 parts of basalt fiber, 5 parts of sodium carboxymethylcellulose, 1.5 parts of tetrasodium ethylene diamine tetraacetate, 11 parts of nonylphenol polyoxyethylene ether, 7 parts of ethyl acetate, 6 parts of nano titanium nitride and 2 parts of pigment and filler.

8. The processing method for prolonging the service life of the spiral shaft of the spiral conveyor according to claim 1, wherein the wavelength of the pulse laser is controlled to be 940-980 nm, the pulse width is controlled to be 28-30 ns, and the single pulse energy is controlled to be 14-16J during the surface laser processing in the step (4).

9. The method as claimed in claim 1, wherein the temperature in the drying oven is controlled to be 100-105 ℃ during the drying process in step (5).

Technical Field

The invention relates to the technical field of machining and manufacturing of screw conveyors, in particular to a processing method for prolonging the service life of a screw shaft of a screw conveyor.

Background

The spiral conveyor is a continuous conveyor and consists of a spiral shaft and a shell, and the spiral shaft rotates in the shell; the material fed into the shell and the helical blade on the helical shaft rotate together in the shell, and in operation, the helical blade pushes the material to move axially, so that the material is transported. However, in the process of conveying materials, the screw shaft is subject to extrusion, friction, corrosion and the like, which easily causes reduction of service life, thereby affecting the service performance and service life of the whole machine, and therefore, the service life of the screw shaft needs to be prolonged to ensure the stability and durability of the operation of the conveyor.

Disclosure of Invention

The invention aims to provide a processing method for prolonging the service life of a spiral shaft of a spiral conveyor, so as to solve the defects in the prior art.

The technical scheme adopted by the invention is as follows:

a processing method for prolonging the service life of a spiral shaft of a spiral conveyor comprises the following steps:

(1) surface cleaning treatment:

a. firstly, polishing the surface of the spiral shaft by using sand paper, and then wiping the surface once by using cotton cloth for later use;

b. b, immersing the spiral shaft processed in the operation a into cleaning solution, taking out after immersion cleaning treatment for 25-35 min, and then washing with deionized water for one time for later use;

c. putting the spiral shaft processed in the operation b into a drying box, drying for 3-5 hours, and taking out for later use;

(2) shot blasting:

performing surface shot blasting on the screw shaft processed in the step (1), and taking out for later use after the surface shot blasting is completed;

(3) treating the coating:

uniformly coating the prefabricated special coating on the surface of the spiral shaft treated in the step (2), and airing until the surface is dry for later use;

(4) laser processing:

performing surface laser treatment on the screw shaft treated in the step (3), and taking out for later use after the surface laser treatment is completed;

(5) drying treatment:

and (5) putting the spiral shaft processed in the step (4) into a drying box for drying treatment, and taking out after 5-8 hours.

Further, the mesh number of the sandpaper used in the sanding process described in operation a of step (1) is 300.

Further, the cleaning solution in the operation b of the step (1) is an acetone solution with a volume fraction of 20%.

Further, the temperature in the drying oven is controlled to be 90-95 ℃ during the drying treatment in the operation c of the step (1).

Further, the medium used in the surface shot blasting treatment in the step (2) is carborundum, the particle size of the carborundum is 180 meshes, the air flow pressure in the sand blasting process is 0.45-0.50 MPa, the distance between a nozzle and a workpiece is 100-105 mm, and the sand blasting angle is 90 degrees.

Further, the special coating in the step (3) is composed of the following substances in parts by weight: 75-80 parts of epoxy resin, 20-25 parts of phenolic resin, 7-10 parts of terpene resin, 8-10 parts of basalt fiber, 4-6 parts of sodium carboxymethyl cellulose, 1-2 parts of tetrasodium ethylene diamine tetraacetate, 10-12 parts of nonylphenol polyoxyethylene ether, 5-8 parts of ethyl acetate, 4-7 parts of nano titanium nitride and 1-3 parts of pigment and filler.

Further, the special coating is composed of the following substances in parts by weight: 78 parts of epoxy resin, 24 parts of phenolic resin, 9 parts of terpene resin, 9 parts of basalt fiber, 5 parts of sodium carboxymethylcellulose, 1.5 parts of tetrasodium ethylene diamine tetraacetate, 11 parts of nonylphenol polyoxyethylene ether, 7 parts of ethyl acetate, 6 parts of nano titanium nitride and 2 parts of pigment and filler.

Further, the wavelength of the pulse laser is controlled to be 940-980 nm during the surface laser processing in the step (4), the pulse width is controlled to be 28-30 ns, and the single pulse energy is controlled to be 14-16J.

Further, the temperature in the drying box is controlled to be 100-105 ℃ during the drying treatment in the step (5).

The invention has the following beneficial effects:

the invention provides a processing method for prolonging the service life of a screw shaft, which is mainly used for processing the surface of the screw shaft, so that the surface quality of the screw shaft is well improved, and the service life of the screw shaft is prolonged; in the treatment process, cleaning treatment is firstly carried out to clean the surface of the screw shaft, which is beneficial to subsequent processing treatment and then shot blasting treatment is carried out, the treatment can moderately improve the roughness of the surface of the screw shaft, which is beneficial to enhancing the coating combination of subsequent coatings, and can strengthen the surface strength, the wear resistance and the like of the screw shaft, thereby improving the surface quality of the screw shaft, then coating treatment is carried out on the coating, the used coating is special coating, the binding capacity of the coating on the surface of the spiral shaft is stronger, the film layer after film formation has the characteristics of good corrosion resistance, weather resistance, wear resistance and the like, and then laser treatment is carried out, and by utilizing the laser treatment with the strength, the fusion of a coating film forming layer and the surface tissue of the spiral shaft can be promoted, the stability of the coating on the surface of the spiral shaft is further enhanced, and the surface characteristic of the spiral shaft is optimized. The treatment method has simple integral process, reasonable matching of all steps and easy large-scale popularization and application, the treated spiral shaft has strong corrosion resistance, weather resistance, wear resistance and other qualities, the service life is obviously prolonged, and the treatment method has great market competitiveness and popularization and application values.

Detailed Description

The following will clearly and completely describe the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.