Article List
- Watch out for gear wear and repairsThe gear reducer is the key equipment of the vertical mill system.Since the task and working conditions of the shifter are particularly severe, it needs to operate continuously under the conditions of shock, vibration and overload, and its service life must exceed 15 years, which requires a high degree of correlation
- Are different types of helical gear reducers maintained in the same way?When the helical gear reducer is first installed: why should attention be paid to the alignment of the center shaft of the machine? It can not only prolong the service life of the helical gear reducer, but also ensure that the machine has a good transmission efficiency, and the center shaft error is
- Are different types of helical gear reducers maintained in the same way?When first installing a helical gear reducer: why pay attention to the alignment of the machine's central axis?It can not only prolong the service life of the helical gear reducer, but also ensure that the machine has good transmission efficiency, and the central axis error is
- What are the advantages of helical gear reducers over spur gearsCompared with the helical gear reducer, the disadvantage of the spur gear reducer is that it will generate vibration.Whether due to design, manufacturing, or deformation, some variation in the involute shape may occur simultaneously along the entire tooth flank.This causes each tooth to touch once, usually very firmly.The resulting vibrations not only place high loads on the gears, but also generate noise.Another disadvantage of spur gear reducers is that it is sometimes impossible to take advantage of the additional strength gained by meshing when two pairs of teeth are in contact, because the stresses generated by the meshing of a single tooth in a cycle are limited.Then the helical gear reducer is different.Its helical gear can be regarded as a cylindrical gear formed by a set of thin plate gears misaligned.In this way, the contact of each plate is at a different part of the tooth profile, thereby compensating for the error of each thin plate gear.This compensating effect is very effective for the elasticity of the teeth and is also beneficial for the load-bearing strength.Furthermore, manufacturing and assembling a large number of thin spur gears is complex, difficult and difficult
- Matters needing attention in gear reducer wear repairThe gear reducer is the key equipment of the vertical mill system.Since the task and working conditions of the gear reducer are particularly harsh, it needs to operate continuously under the conditions of shock, vibration and overload, and its service life is required to be more than 15 years, which requires high reliability.Therefore, the use of vertical mills puts forward higher requirements for the design and manufacture of gear reducers.During the repair process, the gear reducer parts are always in a normal temperature state, without the potential effects of internal stress, thermal deformation, cracks, annealing, softening, fractures and cracks.High bonding strength, no falling off, no hard spots, high surface finish, adjustable hardness.Repairs mild steel and low carbon alloy steel, medium carbon steel and medium carbon alloy steel, high carbon steel and high carbon alloy steel, high strength alloy steel, stainless steel, cast steel, cast iron, copper and copper alloys, aluminum and aluminum alloys , zinc and zinc alloys, chromium, nickel, chrome-nickel steel and unknown materials.The repair position is accurate and flexible, and the repair amount can control the accuracy.On-site repairs are also possible without
- Are different types of helical gear reducers maintained in the same way?When the helical gear reducer is installed for the first time: why should we pay attention to the alignment of the central axis of the machine?It can not only prolong the service life of the helical gear reducer, but also ensure that the machine has good transmission efficiency, and the error of the central axis is not greater than the compensation amount of the coupling.When installing the shaft transmission part, use the assembly tool to install the transmission part in the correct way to ensure the integrity of the internal parts of the helical gear reducer.When choosing a fixed coupling, the manufacturer agrees not to use steel material.If the steel is not installed correctly, the machine will not work properly.After the helical gear reducer is installed, it is necessary to effectively and comprehensively check whether the installation position of each transmission part of the machine is correct, so as to ensure the normal operation and rotation of the machine.Before operation, the oil level of the helical gear reducer should be filled until it flows out of the screw hole, and then a no-load test run for about 2 hours should be carried out.When the machine can run smoothly without vibration, impact, noise, or oil leakage, it means everything is normal, and the oil level of the machine needs to be checked regularly.Helical gear reducer
- What is the difference between soft tooth surface reducer and hard tooth surface reducerIn the process of gear transmission design, especially the closed transmission, if the hardness of gear is not fully considered in the design, it will have a great influence on the performance of the transmission system. Such as common gear failure: tooth surface depression, tooth root fatigue crack
- What is the application and scope of hard gear reducer1. The speed of high-speed shaft should not be greater than 1500 RPM;2. The circumferential speed of gear transmission shall not be greater than 20m/s;3. Working environment temperature is -40℃-45℃. If it is lower than 0℃, the lubricating oil should be preheated to 0℃ to 0℃ above before starting.Har
- What are the features of the rotary reducerIn the process of gear transmission design, especially the closed transmission, if the hardness of gear is not fully considered in the design, it will have a great influence on the performance of the transmission system. Such as common gear failure: tooth surface depression, tooth root fatigue crack
- What is the difference between a soft tooth surface reducer and a hard tooth surface reducerIn the process of gear transmission design, especially closed transmission, if the hardness of the gear is not fully considered in the design, it will have a great impact on the performance of the transmission system.Such as common gear failure: tooth surface depression, tooth root fatigue crack, etc.It is related to gear hardness and gear quality.According to the meshing condition of the tooth surface, the gears of the gear reducer are divided into soft tooth surface and hard tooth surface, which are reflected in the following applications: 1: Soft tooth surface gear transmission (tooth surface hardness ≤ 350HBs), at least one of a pair of gears is Soft tooth surface is usually used for general medium and low speed gear transmission, and the accuracy requirement is not high.2: Hard tooth surface gear transmission (tooth surface hardness > 350 HBS), both gears are hard tooth surface.It is usually used for gear transmissions with strong load capacity and small size.In some equipment, such as winches, soft tooth surfaces are usually used, while hoists now mainly use hard tooth surfaces.The following three points are usually considered in the design: 1. Close the soft tooth surface gear under normal working conditions