Small World bearing rotation

Posted on November 21, 2011 by admin

Bearing industry spread, “as long as the rotation of the earth, Slewing Ring Bearing essential.” 8, the reporter entered as the “hometown of Chinese bearing” in Xingtai City Council, WestCounty, visit the barracks of the characteristics of the field development of the industrychanges. According to reports, the Linear Motion Bearing industry has become a pillar industry of the Pro West County, as of now, the county bearing industrial fixed assets 24.2 billion, employing60,000 people, with the bearing scale enterprises 386, of which billion of annual salesrevenue 6, 5000 26 million yuan. Produce 0-9 class over 1260 types of Automotive Bearing. Local people proudly told reporters: “There is no buy in the bearings.” Pro West County WestZhang Jun, 2010, Pro West County produce various kinds of bearings 680 million units,accounting for 17% of total production, export production of carbon steel bearingaccounting for 78% of total exports of similar products, operating income of 8.43 billion yuan bearing the county, the added value of 2.108 billion yuan, 1.433 billion yuan in profits and taxes. West said Zhang Jun, the Pro North West has the largest bearing businessprofessional market - Pro West China Bearing World. Since the May 2002 opening, has attracted a major bearing manufacturers settled in business at home and abroad, Harbin,Wafangdian, Luoyang, Chongqing and other major bearing manufacturers to establishconsignment here, direct sales, now settled in business 2000 more than an annual turnover of over 4.6 billion yuan. ”World covers an area of ​​580 acres of bearing B, is beingplanned construction, then China will become the World’s leading bearing bearing a largemarket.” Zhang Jun said West.

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Bearing business development situation analysis

Posted on November 14, 2011 by admin

Recently, the CEOs of tobacco companies in China are Dian Forum meeting in the center of national quality inspection of Slewing Ring Bearings, shaft Association Technical Committee, the National Standardization Technical Committee is, Henan University of Technology and other units of local industry experts on the analysis of storage of the current development of the situation and look forward to a tobacco shop in the future direction of the bearing industry, said that “to improve product quality and create their own brand “is the current bottleneck Enterprise Sales breakthrough to win in order to improve the basic warranty.
Improve the quality of products for many companies is the smoke Dian GML, who sees the wisdom to see Jen. But in general the basic ideas on how to change to improve the quality of the product.
To do this a situation, the actual quality of the original data. As the production team, production date, product specifications, name, number and operating system and so on.Records for accuracy, timely and complete. To understand this analysis, quality products that improve the quality of work of great help to improve the quality of the product is understanding the “eyes and ears.”
Second, we must do a good job testing of the measure. In the production and test and measurement of work is very important and is an important way to work is the quality of the product and the base has a database management quality.
Third, we must strictly implement the responsibility for the quality of the first man. Although many factors influence the quality of products, the different positions and all employees. If quality problems found, can not the people responsible, examine unexplained, it would not improve the quality of the product. Therefore, the strict application of the quality in the first place the responsibility of the utmost importance.
Fourth, we must strictly enforce disciplinary procedures. Man, machine, material, method, several links are not evil, to ensure the work is to reduce significantly the quality of the product fault.
Fifth, we must recognize the quality of staff and skills. In particular, the training of new staff and renovations to improve the overall quality is important.

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German precision gear and equipment create

Posted on November 14, 2011 by admin

In China, the first pivot Slewing Ring Bearing has a test platform for the transmission Machinery Co., LtdQingdao Lian Heng, the technical staff with journalists about the process of majorappliances.
It is understood that the company imported production equipment from Germany, mainly to spend 25 million yuan to buy wind power from the German research institute R & Dplatform for professional orientation ring test is always the first place of China. ”Turntabletilt test important platform to improve performance parameters different products are made more accurate, the accuracy of one micron 2.4, hair almost 1 / 4″. Said the engineer, placed here CNC cutting, are used to repair about 1 meter in diameter in the circle of teeth marks, especially for cutting.
Subsequently, the correspondent of the technical staff in another room, “where the measuring device coordinate, organize precision parts mainly for the measurement of space for constant temperature and humidity, when the machine is now in operation, we have just one person, a lamp, maintain a constant temperature maintained. ”

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Small bearings can turn into big base

Posted on November 7, 2011 by admin

Hefei, Wuhu and mussels from the innovation, the company has received a total of sixpatents, was awarded high-tech enterprises, set up a professional R & D center, which is equipped with a full set of standard and nonstandard Slewing Ring Bearings specifically for advancedhigh-precision analysis of the professional tester. Developed by the Technology CenterTM series auto gearbox with precision bearing products, service life can reach the national standard of 5 to 10 times, and can replace imported products, to fill the gaps in the province, received a ”high-tech products Anhui Province ”title.
With these new product development success, the company accelerated the process oftechnological innovation for the company to create a significant economic and social benefits, “said general manager,” 2010 sales revenue of 96.9 million yuan business, profit4.061 million yuan. One new product sales income and profit targets were 86.64% and the total 88.67%. ”
It is worth mentioning that in September this year were the Wuhu Economic and Technological Development Zone Group also established a research technology to createparks, including heavy duty bearings, Automotive Bearings and other high-speed rail motor car more than ten projects will result in the biggest fight of Wuhu , the most technologically advanced bearing production base.

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Processing technology exchange

Posted on November 6, 2011 by admin

By the domestic and international wind power and heavy-duty cylindrical rotary bearingmanufacturers and experts to participate in technical exchange of large cylindrical gear cutting demonstration, recently held in Tianjin Jingcheng Machine Tool Co., Ltd..Delegates to the successful development of YH53250 sincere self-cylinder heavy-dutyCNC milling machine gear, shown in the demonstration of outstanding performance and spoke highly of. Agreed that this new international standard, a fundamental subversion ofthe traditional processing of large cylindrical gear means, should be in the market to promote the application.
Prior to this, China’s construction machinery for the slewing ring bearings yaw and wind power equipment inside and outside gear cutting, gear shaping machine can only rely on, and this means the existence of the traditional process is slow, inefficient, high cost problems, and also processing enterprises have become a big headache. Although the early use ofthe world machine power to ”milling” generation “plug” of the processing methods, but ourproduction of milling machines and machining accuracy by the rigidity constraints, the delay will be “milling” generation “plug” of processing methods into reality. SincereCompany YH53250 heavy-duty CNC cylindrical gear milling machines come out, not only in the key technology to achieve a major breakthrough, and forming a dry-cut superiorprocessing performance, demonstrating the multiple gear shaper unparalleledadvantages.

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Analytical characteristics of needle roller bearings

Posted on November 2, 2011 by admin

The bearings of the machines in general, such as those used: Drawn Cup Needle Roller Bearings open type(1), the needle bearing closed-end (2), bearing race inside the needle (3) and non-bearing ring inner needle / no bearing needle bearing without inner ring (4), there is no cage andcage needle bearing (5) SKF can supply all kinds of needle bearings, roller cage 2,needle roller bearings without 3 ribs provide four bearings spherical roller bearings filled, combined needle / ball 5, combined needle / ball bearing 6, combined needle / roller bearings.
Needle bearings for the metal forming the outer ring with a fine needle bearing. Its main feature is the low section height and durability to withstand. Especially for compact, inexpensive and with the hole in the needle roller and cage used, not bearing configuration.
Combined Slewing Ring Bearing by the bearing components and bearing thrust combined unit, and its compact design, small size, high precision rotationcan withstand a radial load at the same time keep some axial load. Product structure and forms a great adaptability to install, easy. Combined needle roller bearings are widely used in machine tools, machines used in metallurgy, textile machines and printing pressesand other machinery and equipment, and design of the mechanical system allows a very compact intelligent.

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More eye-catching short-term performance

Posted on October 31, 2011 by admin

The company is also actively expanding to other areas outside the building materials, such as the market power of the wind power market solar power generation, the market for portmachinery, heavy equipment market, the military market. Slewing Ring Bearing in the wind, especially the system of pitch, yaw system, each use windmill scenic 4, higher than the 1:1 ratio of construction machinery, wind turbines and therefore demand largest potential market, the company is actively developing the relevant market. Exports are expected to recoversignificantly in 2010. Our main export market for Russia, the United States, Europe, 2009by the drop in external demand and other factors, the company exports about 30% of the cases fall (fall in exports was mainly concentrated on exports to the U.S. market, the company plans to use solar energy pan was delayed), the company will focus on the management of business development for export as one of 2009, the company has taken many steps to open markets abroad, foreign demand in 2010, when the market recoversthe company plans to export business will be much warmer.
Value judgments on the secondary market, the volume of recent stock market trading is associated with moderate power, the stock has increased steadily, contrarian trading is high, short-term performance is more noticeable, appropriate attention.
Henderson Research Centre financial data by the amount of the accumulation of a large body of support for estimates of system pressure, low weighted, the stock of short-term support to 12.9 yuan, 13.65 yuan pressure.

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Delamination roller slewing ring gear teeth broken and repair points

Posted on October 30, 2011 by admin

Since the construction material or intermediate pore plates, Career travel hardened layer hardness, depth of manufacturing quality problems such as irregular or an external reason, which is a layer of hardened career peeling or cracked tooth pinion, the device does not work. Role of the layer to peel the first, the right decisions. Delamination, usually seen in the external hard drive.
Based on experience, if the following conditions, suggesting a role peel the layers: the host with a rotating roller assembly on a “something – anything” unusual sounds or speed slows unequal position with a vibration, temperature, light motor phase current is too high or too large, the rotary engine and hydraulic clutch or clutch etc. groove so badly bruised. After the detachment occurs, must be repaired immediately. delamination If space is discarded the complete set of rotation can be extended. Methods for repair are:
First Slewing Bearing from the inside out, inside and outside the ring to the separation, and gas to clean the roller, then use the grinder carefully around the area to replace the hardened layer blurred cracks generated, the lowest layer of polish scrub; need of repair welds on the track with a warm-up and welding torches to cut, weld the steel electrode (welding wire prior to use are dry, and Use of cooking, the solder layer to track surface easier to 1 – 2 mm, and if delamination should be lower or higher, to a sub-layer welding, no deformation of the base material caused by temperature high to prevent rapid cooling of the weld cracking of weld thermal insulation must be taken immediately after the action, so it gradually cooled. grinder with a layer of solder cooled polished, so that there is someanything higher than the surface Raceway, oil stone or emery gradually metallographic grinding table layer welding it normal to the surface of the track very consistent with a model based on the initial curvature of the test to pass , clean with gasoline roles and career (ball) on lipid coated, assembled into a complete method above for the tower crane and other equipment career, after a long period to properly .
Turn the crown can drive on this section of the base metal teeth casting quality problems (if any trachoma, a mezzanine and other defects, the transmission so that the bending effect is significantly reduced), the process of using tooth contact embedded stones or steel etc. objects, so that stress increases the local bending fracture of the tooth. Local welding repair method must be repaired or tilted, the method of local repair welding, the first crack, the rest of the damaged parts of the matrix rubbed with a hand wheel, fuel (oil) cleaned, used in this part the flashlight warm-up, when you reach to push a certain temperature, the steel electrode with the damaged parts of the tooth, the teeth of the weld prototypes, so it tested higher than the tooth political parties of 1-2mm to repair the selected machine experienced installer, depending on the model tooth tooth meets so far. When you rotate the entire crown of a tooth is damaged, cut along the tooth root, the root of the tooth, and then deposited in the form. Processed in the same cut on a piece of gear teeth, in an appropriate form with the base material in the tank, with a profile model to re-register clicks. Not for consistency and value with double reel closely to bridge the gap with teeth low carbon steel. Finally, to repair a file with other tools and the level of solder to ensure increased stability in contact with the tooth.

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18 years of painstaking research carefully conceived 18 years

Posted on October 27, 2011 by admin

Platinum has four main technical parameters that roller cam, roller contact angle of the hardness of their careers, the depth of hardening of the ring and the contact angle of the rollers career hardness, the depth of hardening of the career maturity of these three parameters of the theoretical system, and the curve of roles still empty.
In contact with the arc of race Drawn Cup Needle Roller Bearings  oval higher reports of ball raceway relevant, the rise of the raceway ring oval ball guidance, ideas and research results, and is graduate of the structural parameters of elliptical career, processing methods and error analysis of the systematic theoretical study. Then they had a written Qian Weichang complex characters of the “elasticity”, began learning the study of elasticity of knowledge, while the calculation, while research has reached the load elliptical arc professional career high load capacity that the conclusions. However, the rotational branch suffer more than the elastic part of toleration, but no way of experimental verification, the project has only very slowly.
Market to determine whether a product is the key to success. Developed over time, put the number of products Spherical Plain Bearing oval pivot for the market. But the market mechanism is imperfect monitoring, efforts to promote the product is not strong and a number of reasons, the direct result of the market reaction is very low, which greatly slowed the product in research.
Swing-power and technical cooperation, Anhui University, properties pan mechanical co-founder of the project team, the viability of the turntable theoretical calculations and experimental research. To use the advanced modern finite element method, model 010.20.200 elliptical swing down in the finite element model 253 280 420 448 nodes, and finally at the national High Performance Computing Center (Hefei) calculate – and pathturnover compared with circular swivel head, oval track transport capacity by 30% or more, more than double the increases in life expectancy.

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Wind Power in the application of induction heating

Posted on October 25, 2011 by admin

Wind turbines in the hub – large pieces of storage and transmission is the key to the design of wind turbine components, product quality has a direct effect on the effective use of the Slewing Bearing. Rotary Connection depends on the quality of life for the quench rate and the shape of the hardened layer depends on the distribution, hardness, crack conditions, tempering and other aspects. EVS on its use and the end result of the strength requirements for one or more career induction hardening, and the teeth or a single set of quenching and offers a complete range of solutions – the hard line.
Hard line is a system of integral induction heating, developed in accordance with vertical, horizontal, or does the concept of measuring machines, spare parts for all types of hardening, tempering, annealing. Enter PLC and / or multi-axis CNC, quality control and automated handling systems, hard-line also has a serial and / or compensation of a plurality of output in parallel and the induction frequency power heating supply. Hardliners, many other components of the dedicated solutions.

This line of products specifically for the Slewing Ring Bearing, it is more flexible use of a combination of multi-axis CNC machine tools. SINAC off power induction heating ensures optimization of the output power constant along the small, compact, automatic balance and the output transformer, so that the quenching process is easier to control and be applied. After some configuration requirements, mechanical / metallurgical provides EFD Induction Heating / sensors as a solution of warm-up. This flexibility is unique in the high carbon content of the material, and prone to crack in the quenching process is particularly effective.

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