Achievements and Application of Technical Transformation of Fiber Laser Cutting Machine Hydraulic Power Station
In view of the problems of backward technology, low pipe cutting efficiency, low safety factor, and poor environmental protection effect of some cold-cut pipe hydraulic power equipment used by fiber laser cutting machines, this paper proposes a practical and feasible modification design plan that can be realized The purpose of optimizing and transforming the equipment with the above-mentioned problems, improving efficiency, increasing safety, and environmental protection. The results of the technical transformation projects that have been implemented prove that the implementation of this technical plan is effective.
The hydraulic fiber laser cutting machine described in this article is a kind of equipment used to cold cut the pipeline during the construction and rescue of oil and gas pipelines. At present, the crawling fiber laser cutting machine imported from abroad accounts for a large proportion of this type of pipe breaking equipment used in the domestic oil and gas industry. Due to the continuous upgrading of this product, many of this type of equipment in service cannot be repaired. Based on the facts based on the transformation of the power part of this type of equipment presided over by the author, this article focuses on the technical transformation results of the power part of this type of in-service equipment.
The imported hydraulic power fiber laser cutting machine used by the author's unit has gradually experienced insufficient power of the power hydraulic station during the long-term pipe cutting operation, and the subsequent pipe cutting has difficulty in starting the diesel engine of the hydraulic station , Weakness, skewered oil, gasping, flame and other failures, unable to cut the pipe. During the maintenance process of the equipment, it was discovered that the power diesel engine was already obsolete equipment, and there was no replacement of spare parts. After maintenance, it was also technically obsolete equipment. Through the analysis of the power unit of the equipment by the organization personnel, it was decided to transform the engine of the hydraulic station into an electric motor as the power unit.
2. Comparative analysis of technical indicators
(1) Technical indicators of the original hydraulic station: the original hydraulic station uses a diesel engine HCM-3D; 15 horsepower, diesel driven; speed 3,000 rpm/ Minutes; the 12V storage battery is charged to start 10GMP@1 500PSI (37.9LPM@130BAR).
(2) Technical indicators after design transformation: use explosion-proof three-phase asynchronous motor as power; 11 kW motor drive, converted horsepower to 14.96 horsepower; speed 2 940 rpm.
(3) This transformation is mainly to change the engine drive to electric motor drive. The hydraulic power unit of the original hydraulic station oil cooler and hydraulic pump is used in the transformation, reaching 10GMP@1 500PSI (37.9LPM@130BAR) ) Work technical standards. After the transformation, the working pressure of the hydraulic power station and the original climbing pipe cutting machine can be matched, which meets the cutting work requirements of the fiber laser cutting machine.
The operation and comparative analysis of fiber laser cutting machine can promote students to have a deeper understanding of knowledge, and students who are at the forefront of classroom teaching can use analogy, observation, analysis, and derivation Such a series of mathematical activities can actively acquire knowledge, and the main role can also be fully exerted.
(4) Build a model and explore independently. When studying the area calculations of parallelograms, triangles, and trapezoids, pay attention to the front and back connections between knowledge, guide students to combine existing knowledge and experience, and gradually explore the special-general-special rules, so that students can experience the 'problem situation.' ——The process of establishing a mathematical model-interpretation, application and expansion' truly achieves that 'students are the masters of mathematics learning'.
Fifth, independent questioning is the core issue for students to play the role of the main body, which is the inexhaustible motivation for learning. The core of mathematics teaching is to cultivate students' ability to pose and solve problems, that is, problem awareness. With problems, thinking has a direction; with problems, thinking has motivation. The core of the student's main role is to ask questions independently, and the most important thing is to let the students generate their own questions. Only the problems that students generate themselves are the problems they care about, the problems they are interested in, and the real doubts they have. For example, when I was studying 'Volume of ConeStudents raised their hands to express their thoughts. One of the students said: 'I want to know what is the relationship between the volume of a cone and the volume of a cylinder?' Isn't this exactly the content of this class? So I took advantage of the situation and started the focus of this class. The students' interest in inquiry is very high and the learning effect is very good. This makes me deeply feel that students are the main body of mathematics learning discovery and research.
The tube cutting method of the tungsten steel fiber laser cutting machine is that the tube is clamped by two sets of clamps. When the tube is cut, the tube is fixed and the tool rotates rapidly on the outer diameter of the tube. The tube equipment, fiber laser cutting machine adopts PLC control, except for the manual operation when the whole tube is installed, the rest of the process is fully automatic. The cutting tool of the flying knife fiber laser cutting machine adopts a cemented carbide knife or a white steel knife strip, which is very close to the principle of cutting with a turning tool on a lathe, so it is also called a turning tool fiber laser cutting machine. The application of fiber laser cutting machine has developed from the initial manual control to the current numerical control control. The equipment has been widely used in the production of idler roller tube cutting, liquefied gas cylinder tube cutting, steel cylinder tube cutting, auto parts tube cutting, bearing tube cutting tube And other fields.
The machine body rotating head cutting has unique advantages:
1. Cutting long pipe fittings will not produce shaking.
2. The cutting chips are band-shaped and easy to handle.
3. Exercise consumes less energy and saves electricity.
4. The cutting material is saved and the knife is durable.
5. The pipe is less wasteful, the knife edge is narrow, and the vertical cut is not cut obliquely.