Sometimes, axial displacement occurs during the operation of a speed reducer. This phenomenon often leads to poor meshing of the mechanical gears, resulting in unilateral meshing and affecting the normal operation of the reducer. So, why does axial displacement occur in a speed reducer? The speed reducer manufacturer provides the following explanation: The two end faces of the speed reducer gears should be perpendicular to the axis, and the plane formed by the symmetrical center points of the two helical gears should also be perpendicular to the axis. However, in actual machining and assembly, there will be certain errors. When a herringbone gear with errors is assembled onto the shaft, the closed loop formed by the symmetrical center points of its left and right helical gears is not a plane perpendicular to the axis, but a curved surface. The trajectory of this curved surface rotating around the axis is an irregular wavy curve, and the rotation trajectories of the two different gears are two different curves. During the operation of a pair of meshing gears, their symmetrical center…

In daily use, we often find that speed reducers become damp due to their placement and other factors, affecting normal operation. Here are some solutions: 1. External heat source method: Disassemble and inspect the damp speed reducer, then place it inside a high-power incandescent light bulb to heat it or put it in a drying oven. 2. Welding machine drying method: Before operating this method, connect the terminals of the damp windings in series and ground the casing. This allows for heating and drying of all three windings. 3. Excitation coil drying method: Wind an excitation coil onto the stator core of the speed reducer and apply alternating current to generate magnetic flux in the stator. The iron loss of the magnetic flux then dries the stator.

Gear reducers are generally used in low-speed, high-torque transmission equipment. They reduce the speed of electric motors, internal combustion engines, or other high-speed power sources by meshing a small gear on the input shaft with a large gear on the output shaft. However, unstable transmission can occur during operation. What causes this? Under normal operating conditions, the maximum temperature of a gear reducer should not exceed 45 degrees Celsius. If high temperature occurs, the machine should be stopped immediately for inspection. Common causes include using a gear reducer that is too small for the specified tonnage, overloading, or excessively tight fitting of the worm gear and worm wheel end caps, leading to high temperatures. The input speed is also uncertain. Worm gear reducers are grease-lubricated, and the maximum speed of the worm shaft should not exceed 1000 min/s. Excessive input speed can also cause high-speed issues and jamming. The solutions for high temperatures include reducing the input speed, checking if the fitting of the end caps is too tight, and…

Pressure difference between the inside and outside of the speed reducer: During operation, friction between moving parts generates heat, and the ambient temperature affects the speed reducer's temperature. If there is no vent or the vent is blocked, the internal pressure gradually increases. The higher the internal temperature, the greater the pressure difference with the outside. Under the influence of this pressure difference, lubricating oil leaks from the gaps. So how should we deal with speed reducer oil leaks? 1. Improve the vent cap and inspection hole cover: The internal pressure of the speed reducer being greater than the external atmospheric pressure is one of the main causes of oil leaks. If the internal and external pressures are balanced, oil leaks can be prevented. Although speed reducers have vent caps, the vent holes are too small and easily blocked by coal dust and oil. Furthermore, each time oil is added, the inspection hole cover must be opened, increasing the possibility of leakage and causing leaks in previously leak-free areas. Therefore, an oil cup-type vent cap was developed, and the original thin inspection hole cover was changed to 6mm thick. The oil cup-type…

Why do speed reducers sometimes break their shafts? Let's take a look: 1. Consider the overload capacity of the drive motor and the maximum operating torque required in practice. 2. The rated output torque of the motor paired with the speed reducer, multiplied by the reduction ratio, should, in principle, be less than the rated output torque of a similar speed reducer provided in the product catalog. Besides poor concentricity of the speed reducer output end assembly causing shaft breakage, the output shaft of the speed reducer may also break. Incorrect selection can lead to insufficient output power from the selected speed reducer.

With the continuous development of industry and market demand, speed reducers are relatively precise machines used to reduce speed and increase torque. So what precautions should be taken when using them? Here's a detailed introduction: 1. After 200-300 hours of operation, the initial oil change should be performed. During subsequent use, the oil quality should be checked regularly, and any oil contaminated with impurities or deteriorated must be replaced promptly. Generally, for speed reducers that operate continuously for extended periods, the oil should be changed every 5000 hours or annually. For speed reducers that have been out of service for a long time, the oil should also be changed before restarting. The speed reducer should be filled with the same brand of oil as before; it must not be mixed with oils of different brands. Oils of the same brand but different viscosities can be mixed. 2. When changing the oil, wait until the speed reducer has cooled down to a point where there is no risk of combustion, but it should still be kept warm. This is because after complete cooling, the oil viscosity increases, making draining difficult. Note: …

As it is an important piece of equipment, its break-in period may be long, generally no less than 200 hours. All geared motors must undergo a break-in period; otherwise, serious damage may occur during use. Do you know why? Below, we will explain in detail. Rapid wear rate. Due to factors such as the processing, assembly, and debugging of new gear reducers, the contact area of ​​the mating surfaces is small, while the allowable torque is large. During operation, the uneven parts on the surface of the gear reducer interlock and rub against each other. The metal debris worn off acts as abrasive, further accelerating the wear of the mating surfaces. Therefore, wear of parts (especially mating surfaces) is easily caused during the break-in period, and the wear rate is too fast. If overloaded at this time, it may lead to damage to parts and premature failure. Frequent operational errors. Due to insufficient understanding of the structure and performance of the geared motor (especially new…

Worm gear screw jacks are coated with paint to protect the internal steel plates and reduce corrosion. This is a common protective measure to extend the equipment's lifespan. However, even the best paint cannot withstand the test of time. Worm gear screw jacks typically require three coats of paint, but the number may vary depending on the materials, the type of mini screw jack, and the local climate. In severe weather, timely maintenance is crucial. If the machine is unusable, it should be properly covered or moved to a more suitable environment. In low temperatures, change the hydraulic oil to prevent excessive wear on the power unit or the machine itself. Worm gear screw jack application and maintenance: 1. Check for wear on rollers, intermediate shafts and bearings, cylinder pins and bearings, boom hinge pins and bearings, etc. 2. Regularly check and adjust the clearance between the brake shoes and brake wheels of each mechanism to ensure smooth operation…

How to operate a worm gear screw jack? - A worm gear screw jack is a motion combination unit that cleverly combines a worm gear reducer and a screw and nut pair. It can be used independently or quickly assembled like building blocks through connecting parts to achieve lifting, reciprocating, and flipping movements. It has many advantages such as compact structure, small size, light weight, wide range of power sources, no noise, convenient installation, flexible use, multiple functions, various matching forms, high reliability, and long service life. It can be used individually or in combination, and can accurately control and adjust the lifting or pushing height according to a certain program. It can be directly driven by an electric motor or other power source, or manually. It has different structural and assembly forms, and the lifting height can be customized according to user requirements. How to operate a worm gear screw jack? - When the friction coefficient of the worm gear pair in a worm gear screw jack is 0.8, the worm lead angle is less than 4°38′39″, which is self-locking…

There are two types of speed reducers: worm gear reducers and worm gear reducers. If we disregard other factors and only look at the names, they seem to differ only in the word "worm gear." However, from a professional perspective, what are the similarities and differences between these two types of speed reducers? Let's explore how to distinguish between worm gear reducers and worm gear reducers! Objectively speaking, the differences between worm gear reducers and worm gear reducers are not significant; in some cases, people might even forget the difference. However, subjectively, we must pay attention to the principles, structure, components, and key parts of worm gear reducers and worm wheel reducers. A crucial point is what their driving component is. For worm gear reducers, the driving component is the worm. Since the worm is the driving component, this is a detail that needs attention. Similarly, worm gear drives also…