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The increase in the number of companies has not promoted the expansion of the reducer industry
That is, if you are unable to break into the high-end market in a short period of time, then first do well-known brands that serve the mid- and low-end markets.
To get rid of this predicament, we still need pragmatic efforts to strengthen ourselves first, and after truly strengthening and hardening the middle and low-end market, we will strive to innovate and increase research and development efforts, and eventually we will enter the high-end market for reducers!
Fourth, independent innovation and increasing research and development. Under this situation, my country's reducer companies struggle to enter the competition in the high-end machinery market, but always wander in the low-end market. We can combine the actual situation, give play to their respective characteristics and advantages, choose their respective flagship products, and embark on a new path of dislocation competition and common development.
Then, during the 12th Five-Year Plan period, how can my country's reducer companies improve themselves and join the trend of international brands? China Reducer Network pointed out Conveyor Pulleys that companies need to do the following: First, pay close attention to quality and make a good brand. Reducer companies are competitors and partners at the same time.
However, the increase in the number of companies has not promoted the expansion of the reducer industry, and the grades of products are basically in the low-end field. To sum up, it is not possible for small and medium-sized reducer companies in my country to get rid of wandering in the low-end market and enter the high-end market in a moment.
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It has been widely used in space technology
The transmission reducer is a power transmission mechanism that uses a gear speed converter to decelerate the number of revolutions of the motor to the desired number of revolutions and obtain a larger torque.
Types of drive reducer Harmonic drive reducer, belt drive reducer, unilateral double drive reducer, harmonic drive reducer, center drive reducer, edge drive reducer, etc. It has been widely used in space technology, energy, electronics industry, petrochemical industry, military industry, robotics, instrumentation, textile machinery, printing machinery, packaging machinery, lifting and transportation machinery, medical equipment, food processing machinery and other industries.
The transmission reducer is a relatively precise machine, and its purpose is to reduce the speed and increase the torque.
The transmission reducer has the characteristics of large transmission ratio, wide range, high precision, small empty return, large carrying capacity, high efficiency, small size, light weight, Worm Gearbox Manufacturers smooth transmission, low noise, and can transmit motion to a sealed space
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The heat treatment quality of the input shaft is unqualified
.The internal factors of the shaft broken of the reducer mainly include the following aspects: The stress at the shaft fracture is too large during the design of the reducer;
The shaft shoulder at the input shaft of the reducer does not carefully consider the radius of curvature of the transition fillet and the change curve to cause China Gearbox for multi industry stress concentration Fatigue damage is severe;
The reducer is in the form of a vertical shaft, the first-stage input shaft is a bevel gear shaft, and there is serious stress concentration at the transition shaft shoulder at the bevel gear supporting bearing, causing fatigue damage;
The reducer has hard teeth Face reducer, the input shaft diameter of the reducer is relatively small, although it is passed when calculating the strength, because the shaft itself is very thin, the stress concentration is serious and fatigue damage occurs at the shaft diameter change;
The heat treatment quality of the input shaft is unqualified; 6 the input shaft Improper selection of materials
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Some of the reducers more completely absorb similar products from Germany
Occupy one by one; many general-purpose reducer companies in China are already facing a serious market crisis. The upper limit parameters of design and manufacture are: upper limit power 44MW, upper limit linear speed 168m/s, upper limit speed 6700r/min. The development of these products has a positive effect on the advancement of my country's gear technology and the development of the national economy. With their advantages in equipment, technology, capital and production scale, they have launched fierce competition with domestic gear reducer factories.
Some of the reducers more completely absorb similar products from Germany.In the 1980s, the world gear technology has made great progress. At present, my country's own design and manufacturing capacity can basically meet the needs of domestic production. As a result, our company often loses in the competition with foreign companies, and the market is affected by foreign companies. Since the mid-1990s, with the opening of the country, foreign companies have begun to vigorously seize the Chinese market, and many foreign companies have established wholly-owned factories in China.
What is eye-catching in the technological development are: hard tooth surface technology, power branch technology and modular design technology. Hard surface gears made of high-quality alloy steel forgings, carburized, quenched, and ground teeth..Conveyor Pulleys Suppliers The weight of a medium-sized hard-tooth surface reducer is only about one third of that of a roller-tooth surface gear reducer. Its core technology is heavy load. The general trend of product development is miniaturization, high speed, low noise, and high reliability. The accuracy is not lower than ISO1328-1975 level 6, and the comprehensive load-bearing capacity is 4 times that of hardened and tempered gears and 5~ that of soft surface gears.
In contrast, many gear factories in my country have had their products unchanged for more than ten years, their standards have fallen behind, and they have lost their price advantages. In addition to understanding the manufacturing technology, in the process of promoting hard tooth surface technology in the late 1980s and early 1990s, we also carried out a series of work to solve 'broken shaft' and 'selection'. my country's low-speed and heavy-duty gear technology, especially hard-tooth gear technology, has also gone through the stages of surveying, mapping and imitation, and has gradually developed from scratch.
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Cascade speed regulation can be divided into motor cascade speed regulation
The device capacity is proportional to the speed control range, and the investment is low. Its characteristics are: It can feed back the slip loss during the speed control process to the power grid or production machinery, with high efficiency.
The power factor of the thyristor cascade speed control is low, and the harmonic effect is greater. When the speed control device fails, it can be switched to full speed operation to avoid production shutdown; 70%-90% of the production machinery.
Most of the slip power is absorbed by the additional electric potential that is connected in series, and then used to generate additional devices to return the absorbed slip power to the grid China Planetary gear reducer or convert energy for use. It is suitable for the speed control range at the rated speed. According to the way of absorption and utilization of slip power, cascade speed regulation can be divided into motor cascade speed regulation, mechanical cascade speed regulation and thyristor cascade speed regulation, and thyristor cascade speed regulation is mostly used.
The cascade speed regulation means that an adjustable additional electric potential is connected in series in the rotor circuit of the wound motor to change the slip of the motor and achieve the purpose of speed regulation.. The cascade speed regulation method of the three-phase asynchronous geared motor is suitable for use on fans, water pumps, rolling mills, mine hoists, and extruders
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General reducers include helical gear reducers
Use life-long replacement-free lubricating oil, and no matter where it is installed, the fully enclosed design can be operated without maintenance, and has an IP65 degree of protection, so it can also be used in poor working environments. The appearance and structure design are light and small.
Industrial robots, and automated mechanical and electrical products industries. The advantages of planetary reducer are compact structure, small return clearance, high accuracy, long service life, and large rated output torque. Input speed, high input torque, smooth running, low noise, etc. Servo planetary reducer provides high cost performance, wide application, economical and practical, long life and other advantages, exerts good servo rigidity effect, accurate positioning control, and has medium and low backlash, high efficiency, and high performance on the operating platform.
The torque output ratio is the motor output multiplied by the reduction ratio, but be careful not to exceed the rated torque of the reducer.The reducer generally achieves the purpose of deceleration by passing the power of the electric motor, internal combustion engine or other high-speed running power through the gear on the input shaft of the reducer with a small number of teeth to mesh with the large gear on the output shaft. Torque transmission equipment, this is a matter of common sense, so I won't talk about it.
The ratio of the number of teeth of the large and small gears is the transmission ratio. You can see that a general motor has an inertia value. Types: General reducers include helical gear reducers, precision planetary reducers, servo-specific planetary reducers, right-angle planetary reducers, planetary gear reducers, helical gear reducers, powerful reducers, precision reducers, pendulums Wire pin wheel reducer, worm gear reducer, planetary friction type mechanical stepless speed changer, etc..
Function: Speed reduction reduces the inertia of the load at the same time. Decrease the speed and increase the output torque at the same time. Ordinary reducers will also have several pairs of gears with the same principle to achieve the ideal reduction effect. The reduction China planetary gear reducers in inertia is the square of the reduction ratio
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Causes the component to bend or break
Repairing with polymer materials is not affected by the thermal stress of repair welding, and the repair thickness is not limited. Causes the component to bend or break; while the electric brush plating is limited by the thickness of the coating, which is easy to peel off, and the above Wholesale Cycloidal Gear Reducer Manufacturers two methods use metal to repair the metal, which cannot change the 'hard-to-hard' coordination relationship.
Helical gear reducer is a novel reduction transmission device. Contemporary Western countries mostly use polymer composite repair methods to solve the above problems. Adopting the most optimized and advanced design concept of modular combination system, it has the characteristics of small size, light weight, large transmission torque, stable starting, and fine transmission ratio classification.
Under the combined action of various forces, It will still cause wear again. The traditional solution is repair welding or machining repair after brush plating, but both have certain drawbacks: the thermal stress generated by the repair welding high temperature cannot be completely eliminated, and it is easy to cause material damage. So what are the maintenance methods for the wear and leakage of helical gear reducers? The repair method is aimed at the wear and leakage of the helical gear reducer.
Processing for on-site repair. The most mature application is currently the most mature technology product of Mega Wah. It has super adhesion, excellent compressive strength and other comprehensive properties, and can be disassembled and machine-free.
At the same time, the product has a retreat that the metal material does not have, which can absorb the shock and vibration of the equipment, avoid the possibility of re-wear, and greatly extend the equipment components The service life of the company saves a lot of downtime for enterprises and creates huge economic value
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The transmission ratio of the reduction gear
For example, the input speed is 1500r/min and the output speed is 25r/min, then the reduction ratio is: i= 60:1. It is China Industrial Gearbox often used as a reduction transmission device between the original moving part and the working machine. It is widely used in intelligent robots, automation industrialization, smart wearable devices and other fields.
According to the type of transmission, they can be divided into gear reducers, worm gear reducers and planetary reducers. Ordinary reducers will also have several pairs of gears with the same principle to achieve the ideal deceleration effect. The reduction ratio, that is, the transmission ratio of the reduction gear, is a kind of transmission ratio, which refers to the ratio of the instantaneous input speed to the output speed in the reduction mechanism, which is represented by the symbol 'i'.
It is usually used for low-speed and high-torque transmission equipment to pass electric motors, motors or other high-speed running power. The gear with fewer teeth on the input shaft of the reducer meshes with the large gear on the output shaft to achieve the purpose of deceleration. The gearbox is equipped with multiple sets of reduction gears. Introducing the speed ratio of the reducer: The reducer is also called a reducer or a gearbox.
The reducer is a relatively precise device whose purpose is to reduce the speed and increase the torque. The ratio of the number of teeth of the large and small gears is Transmission ratio. There are many types of reducers. Generally, the expression method of reduction ratio is 1 as the denominator, and the ratio of input speed and output speed connected by ':'
The reducer is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid shell. According to the number of transmission stages, it can be divided into single-stage and multi-stage reducers; according to the size of the power, the reducer can be divided into high-power reducer and small-power reducer
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