super energy power
Chapter 10: Bushing Connections
"Did you really see it?" The little girl was unsuspecting, with a look of surprise on her face. ┃- ┃
In an instant, she became worried again, and asked, "Have you ever seen such a connection method?"
"Of course, heavy machinery such as coal mines and petroleum likes to be connected with shaft sleeves." Sioux City woke up after speaking. It is now 1987.
In early heavy machinery, the connection between the gearbox shaft and the gear is usually in the form of an interference connection.During maintenance, once the gear and shaft are disassembled and the connection fails, the meaning of repair is lost. If it is reprocessed, the quality of assembly and connection cannot be guaranteed.For example, the oil extraction machine in the oil field is usually replaced by a large gear. Because of the interference connection, the maintenance worker has to replace the gear and the shaft together, resulting in a large loss.If it is connected with a shaft sleeve, only the gear needs to be reprocessed, which naturally reduces the maintenance cost.
However, the popularization of such technology will take 10 years or even years later, and after most of the machines are replaced, Sioux City's mentioning it now obviously discourages people's enthusiasm.
As expected, the little girl lowered her head in frustration, and said, "I knew that such an invention already existed."
Su Cheng hurriedly remedied: "I have never seen the connection method you designed. There are many types of shaft sleeve connections. As long as there is no repetition, they are all new inventions."
"Have you seen any other bushing coupling?"
"Of course, for example... expansion sleeve connection." Su Cheng thought of a connection method that should not appear now.
"Can you show me?"
Su Cheng hesitated for a moment, took out a pencil, and drew a schematic diagram of the expansion sleeve connection at the corner of the drawing.This is an advanced shaft-sleeve connection method during his school days, but its essence is very simple. It still uses pre-tightening screws and connecting sleeves to generate friction between the shaft and the connected parts.
Without considering the proportional relationship, Su Cheng drew a schematic diagram with a few strokes, and said: "The friction force of the load transmission should be calculated, and it should look like this."
"You are amazing, my name is Shu Lan, I am from Shengli Petroleum School, how about you?" The girl stretched out her hand generously, her face was pink.
"I work in the oil production team. Sioux City."
"Someone in my family is also in the oil production team, but they are not as good as you." When Shu Lan heard that he was a worker, she immediately had a good impression of him, and her tone became more friendly.
Su Cheng smiled and said, "I usually like to read books. You are in school, are you about to graduate?"
"That's right. I'm going to show the teacher the blueprints today..." Shu Lan said, "Sorry, I have to go to the design institute."
"You go, I'll read the book for a while, and I'm leaving too." Su Cheng watched Shu Lan leave the library, feeling hot all over, and patted his forehead fiercely, thinking: What are you thinking, she is still a child Woolen cloth.
At the same time, there is another thought in my mind: such a good development, in fact, it is not young.
……
Shu Lan walked quickly all the way to the Design and Planning Research Institute.
Her teacher, Liang Jianguo, works in the research institute and only goes to school two days a week.
Like the Gudong Oil Production Headquarters, the Research Institute is also a secondary unit of Shengli Oilfield. It is related to the Institute of Geological Sciences, the Institute of Drilling and Production Technology, the Shengli Petroleum School, the Shengli Health School, the Normal College, the Staff Training College, the Oilfield Party School, and the Central Hospital. , May [-]th School, Shengli Hospital, Yantai Sanatorium, Cadres’ Rest Center, etc. are at a comparable level. They can be regarded as relatively leisurely positions in the logistics department, and of course, they have less power.
However, Liang Jianguo is a veteran technician in the oil field, and he leads the team to do design research every day, so that he can hand over a project to the students in the class at will.
Seeing Shu Lan push the door in, Liang Jianguo laughed dumbfounded, and shouted, "Why, is the old man who bullies me dazzled?"
"Master Liang, how dare I." Shu Lan was much more lively at this time, and ran to the experiment table with the blueprint in her arms, and said with a smile, "I went to the library to check the information this morning, but there are still many things I don't understand. .”
She said and spread out the drawings.
Liang Jianguo let out a "hmm", put on his reading glasses, and looked at it seriously.
However, his eyes quickly drifted away from the drawing, and he pointed to the schematic diagram on the side and asked, "Did you draw this?"
"No, it was drawn by a worker I met in the library."
Liang Jianguo simulated it in his hands, and sighed: "This is a good design, but the drawing is too simple, and the various parameters are not marked, so it is not easy to judge."
"That's right, I remember he said that the frictional force for transmitting loads needs to be calculated." Shu Lan tilted her head and thought.
"Then it involves torque. You said you are a worker?" Liang Jianguo was a little bit unconvinced.
Shu Lan said affirmatively: "Yes, he said it was from the oil production team."
"Which oil production team?"
"This..." Shu Lan was at a loss for words.
"It can calculate torque and transmit loads, which is no weaker than the college students in our courtyard. Moreover, his design is quite novel." Liang Jianguo shouted back: "Xiao Wu, come here, take this schematic diagram Draw it and see."
The design diagram of a connection is quite simple, mainly the relationship between gears and shafts, plus a middleware.
Xiao Wu is also 30 years old, and he drew it in two or three strokes, took it over and said, "Old Liang, your design is exquisite, if you replace all our equipment, you can save a lot of money every year. "
"I didn't do it. Look, if there is only this schematic drawing, is the data easy to calculate?" Liang Jianguo was a technical secondary school student in his early years. He could do calculations before, but when he got older, he seldom did calculations by himself.
Xiao Wu stared at the blueprint for a while, and said: "It's a bit difficult, it's estimated to take ten days and half a month, and we have a lot of tasks now, otherwise we can call a few more people to come together."
Shu Lan suddenly jumped up like a white rabbit, and said, "I'll go find him."
……
In an instant, she became worried again, and asked, "Have you ever seen such a connection method?"
"Of course, heavy machinery such as coal mines and petroleum likes to be connected with shaft sleeves." Sioux City woke up after speaking. It is now 1987.
In early heavy machinery, the connection between the gearbox shaft and the gear is usually in the form of an interference connection.During maintenance, once the gear and shaft are disassembled and the connection fails, the meaning of repair is lost. If it is reprocessed, the quality of assembly and connection cannot be guaranteed.For example, the oil extraction machine in the oil field is usually replaced by a large gear. Because of the interference connection, the maintenance worker has to replace the gear and the shaft together, resulting in a large loss.If it is connected with a shaft sleeve, only the gear needs to be reprocessed, which naturally reduces the maintenance cost.
However, the popularization of such technology will take 10 years or even years later, and after most of the machines are replaced, Sioux City's mentioning it now obviously discourages people's enthusiasm.
As expected, the little girl lowered her head in frustration, and said, "I knew that such an invention already existed."
Su Cheng hurriedly remedied: "I have never seen the connection method you designed. There are many types of shaft sleeve connections. As long as there is no repetition, they are all new inventions."
"Have you seen any other bushing coupling?"
"Of course, for example... expansion sleeve connection." Su Cheng thought of a connection method that should not appear now.
"Can you show me?"
Su Cheng hesitated for a moment, took out a pencil, and drew a schematic diagram of the expansion sleeve connection at the corner of the drawing.This is an advanced shaft-sleeve connection method during his school days, but its essence is very simple. It still uses pre-tightening screws and connecting sleeves to generate friction between the shaft and the connected parts.
Without considering the proportional relationship, Su Cheng drew a schematic diagram with a few strokes, and said: "The friction force of the load transmission should be calculated, and it should look like this."
"You are amazing, my name is Shu Lan, I am from Shengli Petroleum School, how about you?" The girl stretched out her hand generously, her face was pink.
"I work in the oil production team. Sioux City."
"Someone in my family is also in the oil production team, but they are not as good as you." When Shu Lan heard that he was a worker, she immediately had a good impression of him, and her tone became more friendly.
Su Cheng smiled and said, "I usually like to read books. You are in school, are you about to graduate?"
"That's right. I'm going to show the teacher the blueprints today..." Shu Lan said, "Sorry, I have to go to the design institute."
"You go, I'll read the book for a while, and I'm leaving too." Su Cheng watched Shu Lan leave the library, feeling hot all over, and patted his forehead fiercely, thinking: What are you thinking, she is still a child Woolen cloth.
At the same time, there is another thought in my mind: such a good development, in fact, it is not young.
……
Shu Lan walked quickly all the way to the Design and Planning Research Institute.
Her teacher, Liang Jianguo, works in the research institute and only goes to school two days a week.
Like the Gudong Oil Production Headquarters, the Research Institute is also a secondary unit of Shengli Oilfield. It is related to the Institute of Geological Sciences, the Institute of Drilling and Production Technology, the Shengli Petroleum School, the Shengli Health School, the Normal College, the Staff Training College, the Oilfield Party School, and the Central Hospital. , May [-]th School, Shengli Hospital, Yantai Sanatorium, Cadres’ Rest Center, etc. are at a comparable level. They can be regarded as relatively leisurely positions in the logistics department, and of course, they have less power.
However, Liang Jianguo is a veteran technician in the oil field, and he leads the team to do design research every day, so that he can hand over a project to the students in the class at will.
Seeing Shu Lan push the door in, Liang Jianguo laughed dumbfounded, and shouted, "Why, is the old man who bullies me dazzled?"
"Master Liang, how dare I." Shu Lan was much more lively at this time, and ran to the experiment table with the blueprint in her arms, and said with a smile, "I went to the library to check the information this morning, but there are still many things I don't understand. .”
She said and spread out the drawings.
Liang Jianguo let out a "hmm", put on his reading glasses, and looked at it seriously.
However, his eyes quickly drifted away from the drawing, and he pointed to the schematic diagram on the side and asked, "Did you draw this?"
"No, it was drawn by a worker I met in the library."
Liang Jianguo simulated it in his hands, and sighed: "This is a good design, but the drawing is too simple, and the various parameters are not marked, so it is not easy to judge."
"That's right, I remember he said that the frictional force for transmitting loads needs to be calculated." Shu Lan tilted her head and thought.
"Then it involves torque. You said you are a worker?" Liang Jianguo was a little bit unconvinced.
Shu Lan said affirmatively: "Yes, he said it was from the oil production team."
"Which oil production team?"
"This..." Shu Lan was at a loss for words.
"It can calculate torque and transmit loads, which is no weaker than the college students in our courtyard. Moreover, his design is quite novel." Liang Jianguo shouted back: "Xiao Wu, come here, take this schematic diagram Draw it and see."
The design diagram of a connection is quite simple, mainly the relationship between gears and shafts, plus a middleware.
Xiao Wu is also 30 years old, and he drew it in two or three strokes, took it over and said, "Old Liang, your design is exquisite, if you replace all our equipment, you can save a lot of money every year. "
"I didn't do it. Look, if there is only this schematic drawing, is the data easy to calculate?" Liang Jianguo was a technical secondary school student in his early years. He could do calculations before, but when he got older, he seldom did calculations by himself.
Xiao Wu stared at the blueprint for a while, and said: "It's a bit difficult, it's estimated to take ten days and half a month, and we have a lot of tasks now, otherwise we can call a few more people to come together."
Shu Lan suddenly jumped up like a white rabbit, and said, "I'll go find him."
……
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