2017年8月29日星期二

What is the ideal gear motor protection?

The ideal vertical gear reducer protection is not the most functional, nor the so-called the most advanced, but should be the most practical. So what is it practical? Practical should meet the reliable, economical, convenient and other factors, with a high cost performance. So what is it? Reliable first should meet the function of reliable, such as the use of motor when the motor over-current, phase failure function must be on a variety of occasions, a variety of processes, various ways of over-current, phase can be reliable action. Followed by its own reliable (since the protector is to protect others, in particular, should have a high reliability) must have a variety of harsh environment of adaptive stability, durability.
Economy: the use of advanced design, reasonable structure, specialization, large-scale production, PC gearboxes product costs, to the user to bring high economic benefits.
Convenience: must be installed, used, adjusted, wiring, etc., at least should be similar to thermal relays, as much as possible easier and convenient.
It is also because of this, the experts have long predicted that in order to simplify the variable ratio gearbox protection device should be designed and used without power transformer (passive) design, and the use of semiconductors (such as SCR) instead of contact electromagnetic operating units. In this way, it is possible to manufacture a gearbox protection device consisting of a minimum number of components.

2017年8月24日星期四

Gear reducer motor novice common use of the failure

1. Operation errors: Due to the structure and performance of the gear reduction motor, it is not enough (especially the new operator) to cause malfunctions or even cause mechanical accidents and safety accidents due to operational errors.
2. Poor lubrication: Due to the smaller clearance of the newly assembled parts of the single stage gearbox and the fact that the lubricating oil (grease) is not easy to form a uniform oil film on the friction surface due to assembly or the like to prevent wear. Thereby reducing the lubrication performance caused by the early wear of the machine. Severe frictional surface friction or bite caused by the phenomenon of precision caused by the occurrence of failure.
3. Wear speed: due to the new gear reducer motor parts processing, assembly and commissioning and other factors with a small contact area with a small contact with the larger torque. Cycloidal Speed Reducer Gearbox in the process of running the parts of the surface of the concave and convex parts of the friction with each other friction and grinding down the metal debris and as abrasive continue to participate in friction more speed parts with the surface wear. So the run-in period is likely to cause the wear and tear of the parts (especially with the surface) wear too fast. At this time if the overload operation may lead to combined gearbox parts damage caused by early failure.
4. Loose: gears The new parts of the newly machined assembly are geometrically shaped and the variation of the fit size is affected by factors such as impact, vibration and other alternating loads and heat, deformation and other factors in the early stages of use. Easy to make the original tightening parts of the loose.
 5. Leakage phenomenon: due to loose parts, vibration and operation of the heat affected gear reducer motor sealing surface and pipe joints and other parts of the leakage phenomenon; part of the casting and other defects in the assembly and debugging difficult to find but because of the operation process Of the vibration, the impact of this defect was exposed to the performance of leakage (infiltration) oil. So the occasional run-in leakage phenomenon.

2017年8月19日星期六

How to remove noise problems in geared motors?

Electromechanical industry people know that the noise when the motor is a lot of work so that a headache is a problem, especially the high efficiency gearbox noise is particularly large. Reducing noise and ensuring stability at runtime is the primary condition for the quality of the motor.
For how to achieve this goal, many domestic and foreign manufacturers have cycloidal reducers meshing stiffness changes as the gear dynamic load, vibration and noise of the main factors. With the modified method, so that the dynamic load and speed fluctuations to a minimum, in order to achieve the purpose of reducing noise. This method proved to be a more effective method in practice.
 The caliper of the geared motor shall be mounted on a non-vibrating, very strong level, and the inclination of the axis of the geared motor shall not be greater than 15 degrees when it is necessary to be tilted. If you need to use in addition to foot horizontal installation and flange mounted outside the installation of other special forms, must take the appropriate lubrication and sealing measures to ensure that the Hypoid Gear Reducer can be fully lubricated to prevent oil spills.
In the use of shock, vibration or frequent use of the occasion, the base and the base in addition to the foot bolt with the connection, but also need to use the positioning pin (self) to fix. But with this method, the process needs to have modified equipment, the majority of small factories are often unable to implement. After years of research, it is proposed that by optimizing the gear parameters such as the displacement coefficient, the tooth height coefficient, the pressure angle and the center distance, the penetration impact velocity is minimized and the ratio of the outburst impact velocity to the penetration impact velocity is at a certain value Range, to reduce or avoid the impact of meshing rounds of the gear design method, but also significantly reduce the gear motor gear noise.

2017年8月14日星期一

How to select the gear reduction motor model by parameter.

 Gear PC gear boxes are widely used in electronic equipment, painting equipment, printing industry, packaging equipment, woodworking machinery, medical equipment, ceramic equipment, breeding equipment. We according to the actual needs of different industries, gear gear motor selection is essential. If the selection error and parameter error will lead to lack of power or excess situation. Pc Helical Gear Box products, functions, parameters, the principle of gear gear motor is several major indicators. So the customer should be based on the following gears to adjust the AC Motor Worm Gearbox parameters:
1, product model
Different types of equipment used in the industry are not the same, so when you do not understand their own equipment used gear reducer motor specific models should be to the manufacturer or dealer consultation.
2, the motor power (including the motor series)
Here is a simple and practical way to calculate the motor power.
Motor power = torque ÷ 9550 × motor power input speed ÷ speed ratio ÷ use coefficient
3, the motor rated voltage
Under normal circumstances, are used three-phase 380V voltage, if the customer special needs should be explained. (Under normal circumstances, more than 5 horsepower motor can only use 3-phase 380V, 5 horsepower motor can use the following three-phase 220V or three-phase 380V)
4, installation
General light gear motor installation is divided into horizontal or vertical installation.
5, reduction ratio
According to the actual needs and refer to the gear reduction motor parameter table
6, the output shaft size.

2017年8月9日星期三

The future competition of the gear motor industry should be technology as the core

With the rapid development of China's industry, to promote the continuous expansion of the demand for helical bevel worm gearmotor. However, the development of industry is not only a greater demand for the purchase of gear motors, but also a new standard for technological innovation of geared motors.
At present, the domestic gear motor industry competition is still very intense, this competition prompted a lot of motor manufacturers to increase the gear motor technology investment, but also to promote their innovative technology, improve production, sales and after-sales management. However, there are also mainly price-based competition. The competition in the Hypoid speed gearbox industry is more competitive than the price competition, which not only hinders the development of the domestic motor industry, but also is not conducive to the development of the whole national industry. To price as the core of the competition is not the long-term business, only to increase the input of the gear motor technology and attention to technological innovation in order to enable enterprises in the increasingly fierce competition in an invincible position, and only to enhance the combined worm reducer Technical content, in order to make our country gear in the international competition has a place! Technology as the core innovation gear motor technology in order to compete in the industry in the future, invincible.

2017年8月4日星期五

How can we extend the life of the gear reducer?

vertical gear reducer is an important part of the transmission equipment, to improve the gear reducer load capacity and service life plays a vital role in the reducer selection after adding good lubricants (gear oil or oil line), and install On the workbench, use the height gauge to adjust the center height of each test instrument and reducer. So that they are at the same center height, with bolts, gasket fixed, add a small load, run test run. After running for some time, pour the oil out and check whether the oil contains metal powder and re-clean it, then add the lubricant to fall again until the metal powder is not found. Finally, add the lubricant seal and start to increase the load to test.
Gear reducer for the first time, the first test run is essential. Many users tend to ignore this early work, eventually leading to poor operation of the reducer, or lead to damage to the PC gear reducer, thereby increasing the cost of investment. So the gear reducer test run is to help users reduce the cost of investment, which can greatly improve the gear life and quality.