Since 1995, Kong Xiangrui has presided over more than 50 technological innovation projects of/kloc-0, which has created more than 84 million yuan for enterprises. While creating economic benefits, it also makes the use and management of mechanical equipment in his department reach a new level, and equipment management has entered the national leading and world-class level in the same industry. Kong Xiangrui's name is associated with many inventions. 1995 served as secretary and captain of the Party branch of the solid machinery team of Tianjin Port No.6 Company, and was in charge of loading and unloading the core equipment of the company-18 40-ton portal cranes. Once, the 12 portal crane broke down, which will seriously affect production if it is not repaired immediately. The premise of repairing the gantry crane is to lift the gantry crane weighing 168 tons onto the plate. As a rule, you need to rent a sea crane and wait for two months. With his long-term accumulation and practical work experience, Kong Xiangrui is determined to solve the problem by himself. After repeated research, he led his workmates to overcome the difficulty that the lower fulcrum was difficult to fix due to the rotation of the bearing, and used a 30-ton 10 single jack to jack up the upper plate of the 168-ton portal crane, so that the fault of the portal crane was repaired, and thus a new achievement-a new technology of welding and jacking the bearing under the big flange was formed.
In 200 1 year, Kong Xiangrui and his workmates, after numerous studies and experiments, combined the two actions of opening the bucket and lifting the light hook of the door crane into one, enriched the motion trajectory of the main controller handle from cross to star, and completed the two actions of opening the bucket and lifting the bucket with one instruction. After this technical innovation was promoted by the whole team, the production efficiency was significantly improved. Gantry crane can save 15.8 seconds for each hook operation, and make an average of 480 tons more every day, which created benefits for the company in that year160,000 yuan.
In 2002, the "star operation method of main gate starter" was named "Kong Xiangrui operation method" by Tianjin Federation of Trade Unions. This "golden idea" was popularized all over the country.
In 2002, Kong Xiangrui and his workmates used Vientiane shaft instead of Caffard hole connection, which solved the problem that the central slip ring of portal crane was often short-circuited and burned, and achieved good economic benefits.
In 2004, the invention was patented as a utility model in China National Intellectual Property Administration, and was adopted by the manufacturer. The improved equipment, as a brand-name product, is exported to ports all over the country and all over the world.
He is an ordinary worker, with only a junior high school diploma, and has worked in the port dock for 34 years.
He is a self-taught and innovative "blue-collar expert". * * * More than 50 scientific and technological achievements/kloc-0 were achieved, and more than 84 million yuan was created for enterprises.
On the eve of the National Day in 2006, Kong Xiangrui, the 5 1 year-old captain of the first operation team of Tianjin Port Coal Terminal Company, stood on the podium of the "Chinese Skills Award" with honor and won the recognition of a knowledge-based industrial worker by the state. This is another award after he won more than 20 honorary titles such as National Model Worker, National May 1st Labor Medal and National Excellent party member. "You can have no diploma, you can't have no knowledge. The big classroom of production practice is still to cultivate people. " Kong Xiangrui 1972 was assigned as a worker at Tianjin Port Terminal after graduating from junior high school. 1985, has been a gantry crane for more than ten years, and participated in the pre-examination training class for employees. At that time, Kong Xiangrui was already the team leader and the technical backbone of the team. Learning to go to school takes up working time, you can't leave him at his post! Others are in class, but they are thinking about production. On the third day of class, Kong Xiangrui made a decision: bid farewell to the class and return to his most concerned and beloved job. Although the short study experience stopped, Kong Xiangrui's thirst for knowledge became stronger. He once said that people can have no diploma, but they can't have no knowledge; Production practice is still a big classroom to cultivate people. Kong Xiangrui regards his work as a classroom, production practice as a teaching material, equipment failure as a subject, skilled workers around him as teachers, and studies hard and assiduously. He found the equipment manual, studied it page by page, chewed it page by page, looked up information if he didn't understand it, and asked people who didn't understand it until he became familiar with the thick manual. Kong Xiangrui lives in downtown Tianjin, more than 50 kilometers away from the port. In those years, he had to take a bus, change cars and change cars every day, and it took him more than five hours to go back and forth. Kong Xiangrui always carries books with him and is eager to learn. Kong Xiangrui has the habit of writing a work log. He carries a notebook with him every day, recording all the faults, causes, maintenance process and precautions of the equipment. Over time, a work log has become a database of his technological innovation. The efforts of the post made Kong Xiangrui gradually grow into an expert. Once, the rotating big bearing of a gantry crane on the dock made abnormal noise. This may be insufficient lubrication, but it may also be a precursor to a major accident. If it is not dismantled and thoroughly overhauled, the portal crane may be paralyzed; If there is no problem after disassembly, the enterprise will suffer millions of dollars in economic losses. Dismantle or not? The business leaders and workers present looked at Kong Xiangrui with expectant eyes. Kong Xiangrui listened to the noise calmly again and said decisively: The bearing is broken and must be removed! According to his proposal, the company invited a 900-ton offshore floating crane for operation. With the rumbling of the sea crane, the upper part of the gantry crane was slowly lifted and the slewing support was removed. The results were unexpected, and the front end of the slewing bearing was intact without any abnormality. Is Lao Kong's judgment wrong? Kong Xiangrui was lost in thought. He thought it was bearing damage, maybe the problem was deeper. He calmly commanded the crane to turn the big bearing upside down, and the answer finally understood. I saw that the ball had scattered from the groove on the back of the big rotary bearing with good front. If you continue to use it, the consequences will be unimaginable. The door crane fault was eliminated in time, and Lao Kong's stunt of "hearing the sound and breaking the disease" was also famous. "The new equipment is tens of millions of yuan, and the technical content is quite high. When workers are not just selling their physical strength, only by thinking more and thinking more can they catch up and go forward at critical moments. "
On one occasion, the lower bearing surface of the slewing bearing of a 320-ton gantry crane was damaged, just like there was something wrong with the lower plate of a stone mill, which needed to be hoisted for repair. In order to lift the gantry crane weighing 168 tons onto the plate, we can only rent a floating crane working in Nanhai, but it will take two months.
Seeing so many big ships waiting for work on the dock, Kong Xiangrui said, "I can't wait!" " He began to lead his workmates to find ways to troubleshoot.
With long-term accumulated experience, Kong Xiangrui thought of a "trick"-jack. There is no sea crane on it, so we try to hang it from below. But this is an unprecedented attempt after all, and it is very risky. Kong Xiangrui and his workmates pondered it over and over again, and decided to take the rotating outer gear ring of the gantry crane above the flange as the upper fulcrum, and developed a jack-up bracket welded below the big flange as the fixed lower fulcrum, which solved the problem that the rotation of the base could not be uniformly stressed. I'm ready. 10 single small jack with 30 tons pressure competes with 168 tons gantry crane: 1 mm, 2mm；; One centimeter, two centimeters ...
This "iron tower" was finally lifted by 10 "Little Brother" by 20 cm, reaching the height required for maintenance. It took only 9 hours to repair the portal crane, and a new jacking support technology dedicated to the maintenance of port portal crane was born. 200 1 year, Tianjin port throughput 1 100 million tons. Kong Xiangrui's Sixth Company, as the largest loading and unloading company in Tianjin Port at that time, was responsible for 25 million tons and needed 18 gantry crane to do one-third more work than usual.
Is there still potential to be tapped? At that time, Kong Xiangrui was full of door cranes, and his mind always flashed from the first action to the last action of the door crane grab operation. After repeated observation and thinking, he found that when the grab of the portal crane is unloading, the grab should first descend into the cabin, then open the material and then ascend. There will be a short pause when the grab opens and unloads. If we can make use of this homework, it will certainly improve work efficiency.
Kong Xiangrui and the technical backbone of the team studied together, trying to combine the two actions of opening the grab and lifting the light hook, so that the grab can be lifted while unloading. They enriched the trajectory of the joystick from a cross to a ☆ shape, and controlled two actions at the same time with one instruction.
The invention saves 65438+/-05.8 seconds for the portal crane to operate the hook once, and does an average of 480 tons of work every day. The sixth company overfulfilled its task of 25 million tons in that year, with a benefit of160,000 yuan. In 2002, this "door master starter star operation method" was named "Kong Xiangrui operation method" by Tianjin Federation of Trade Unions and became one of the top ten excellent operation methods of Tianjin employees. This "golden idea" has become a new technology concerned by the same industry and has been popularized throughout the country.
With such persistent research spirit and innovative consciousness, Kong Xiangrui led the backbone of the team to overcome the technical problem of frequent short circuit of the central collector of the portal crane. This is a hard bone to chew. In the past, domestic port cranes frequently failed, which always made manufacturers and technical experts feel difficult and headache. Kong Xiangrui and his workmates read the materials carefully, analyzed and eliminated them item by item, and finally found out the design defects. After three months' exploration and tackling key problems, the cardan shaft was finally used to replace the card falcon connection, which skillfully solved the stubborn disease of easy damage due to eccentricity and completed the technical transformation of the central collector of the portal crane.
This innovation, which only invested 2000 yuan, has produced great benefits and won the national patent certificate for utility model invention. It is proved by experts that "the hidden trouble of central current collector of portal crane is solved from a new angle". The prestigious Shanghai Port Machinery Factory has absorbed this technical achievement, and the improved equipment not only serves China port, but also exports abroad. "'foreign equipment' is also artificial, and there will be imperfect links. As long as you understand it, you will know where to start the transformation. "
From June, 5438 to February, 2003, Kong Xiangrui was transferred to the No.1 Team of Coal Terminal Company as the secretary and captain of the Party branch. What he wants to control is the world's latest automatic transmission equipment worth 800 million yuan imported from abroad. This is undoubtedly a challenge for Kong Xiangrui, who has been dealing with portal machines. Kong Xiangrui faced up to difficulties and continued to explore. Many things happen. In just two years, Kong Xiangrui's efforts have yielded fruitful results. Imported automatic dumpers are used for the coal train in the port, and the dumpers unload two carriages of raw coal at a time. Because of the unreasonable design of the hook-picking lever of the dumper, it is easy to be damaged, which often causes the car to be unable to hook, and it has to stop more than 20 times a month, which is time-consuming and laborious to maintain and directly affects the unloading efficiency. Through the study of mechanical principle, Kong Xiangrui found two breakthrough points, namely, "the buffer rod itself bears stress, which simplifies the maintenance and replacement procedure" and improved it. The original one-meter long hook rod is changed into three sections, and the middle is connected with a flange, which is convenient for adjusting the angle. This not only lightens the load-bearing of the hook rod, prolongs the service life, but also makes the disassembly and assembly more flexible, and shortens the maintenance and replacement time from the original 3 hours to 15 minutes. This technical transformation began in June 2004 at 5438+ 10. It took two months, and the total cost of four sets of levers was less than 2000 yuan, which solved the big problem. After put into use, it saves unloading time 1.800 hours per year, loads 65,700 more trains and loads 3.2 million tons of raw coal. The successful transformation of the hook rod of the dumper further enhanced Kong Xiangrui's confidence in further transforming and perfecting the imported equipment.
The four import transfer towers of the coal terminal are important equipment connecting the belt corridor transportation. With the increase of large-scale coal operations on the dock, the wear plate on the baffle of the transfer tower is seriously damaged and often needs to be replaced. It takes 30 minutes to replace a wear plate, and production is affected. Kong Xiangrui realized that this is a hidden danger that must be eliminated. By looking at the structural diagram of the baffle of the transfer tower and repeatedly testing the existing compressive and thermal properties of the wear-resistant plate, he decided to add a grid made of steel plate to the original wear-resistant plate. In this way, the pulverized coal falling in the belt drive can be stored in the grid, so as to prevent the large coal from directly impacting the wear-resistant plate. Since this technical transformation was carried out in April, 2005 1, the grid of baffle plate has not been damaged in the operation of lump coal, and the "zero replacement" of wear plate has been realized. This alone can save 3,600 yuan of material cost per month, save 9 hours of maintenance time, and avoid maintenance workers working at high altitude. "A good worker should be dedicated, loyal to the country, loyal to the workers, love the enterprise and be good at work." As a representative of knowledge-based industrial workers in the new era, Kong Xiangrui still inherits the "master spirit" of the working class in China, and always embodies the excellent virtues of taking the lead in setting an example, putting people first, sharing weal and woe with workers and living in harmony. 1 July, 19991at 3: 00 p.m., the ground temperature at the operation site of Tianjin Port Terminal reached 40 degrees Celsius, but a main gantry crane in operation suddenly short-circuited and caught fire. At this time, the surface of the gantry crane, which has been exposed to the scorching sun for a day, is already hot, and the temperature of the tin machine room with thick smoke exceeds 50 degrees Celsius. At this point, Kong Xiangrui was anxious. Power plants in five southern provinces are in an emergency, and the State Council is in a hurry to rush. We can't delay it. "The military situation is urgent!" Kong Xiangrui first got into the oven-like computer room. As time went by, sweat kept flowing into his eyes and corners of his mouth, soaking the tooling. He and five workmates were sweating like rain, their throats were smoking, and everyone could wring water out of the tooling. Six people drank five boxes of mineral water, and no one went to the toilet. Kong Xiangrui asked the workers to take turns to get out of the computer room to catch their breath, but he stayed in the computer room until the evening 1 1, and worked for 8 hours. After the fault was repaired and the loading operation resumed, Kong Xiangrui took a long breath and sat down on the ground like cotton. In this way, Kong Xiangrui devoted all his body and mind to the work he loved and had no regrets for decades. In the summer of 2002, Kong Xiangrui, as the technical representative of the company, went to Henan to purchase door control equipment. Due to running around for days, the powder tumor on his waist festered and he had to undergo surgery in the local area immediately. The operation left a hole more than 2 cm deep on him, and he needed 6 pieces of cotton wool at a time. After returning from a business trip, Kong Xiangrui concealed his illness. As usual, he puts on work clothes every day, climbs the 40-meter-high gantry crane, checks the equipment and arranges the work. In hot summer, sweat and coal dust always soak the work clothes when working at the coal terminal. Every day when he takes a shower after work, Kong Xiangrui always waits until he enters the bathroom for the last time, puts a basin of water on the chair in the corner of the door and scrubs it quietly, so as not to let the workers see his wound. But the "secret" was still caught by the workers. Looking at the captain's wound, the workers' eyes were wet. After the company leaders knew this situation, they "ordered" him to go home and rest, but Kong Xiangrui said, "I will install the parts of the portal crane soon, and I can't leave at this time." After "negotiation", an "agreement" was reached: Kong Xiangrui still goes to work every day, but he can't leave the team office, let alone go to the scene. After more than a week, the portal crane equipment was successfully installed and the trial operation effect was good. Company leaders called Kong Xiangrui's team office to express their condolences. A worker who answered the phone said, "Kong team debugged the door crane on the spot, and it's really exhausting these days ..." It turned out that Kong Xiangrui carried his leadership and endured the pain of the wound and never left the scene for a day. Since becoming the shift leader, Kong Xiangrui has hardly spent a New Year's Eve and Mid-Autumn Festival with his family for more than 20 years. Every holiday, he is on duty at the dock with his workmates. He once said to his workmates, "After working, for a long time, I just wanted to make more money and let my family live a rich life. Later, the country became rich and strong, enterprises developed, and life was easy. I feel more and more that only by creating greater value and making more contributions to society can people live a valuable life. "
Kong Xiangrui won many honors, but as usual, he still works with his workmates every day, thinking of doing more. After several months of tackling key problems, in 20 13 years, he and his partners made another technical breakthrough in the field of large-scale port machinery and equipment-the "anti-falling groove and falling protection device for cable drums" was successfully developed. This innovation can avoid the occurrence of large-scale mechanical cable damage accidents in ports. Since the transformation, two hidden dangers have been blocked, and the direct loss of 1.6 million yuan has been avoided, while the development and installation cost of this new device is less than 3,000 yuan each. National patent.
Since 2006, Kong Xiangrui and his teammates have completed more than 20 technical transformation projects, bringing more than 20 million yuan of economic benefits to the enterprise.