Sealing is a difficult problem that the machinery industry has been trying to solve.At the same time, it is also a major problem that plagues the lubrication and maintenance of equipment in factories and mines. 90% of the reducers used in some factories and mines have varying degrees of oil leakage at the output shaft end, which not only wastes a lot of equipment lubricating oil, but also uses up the equipment. , Maintenance and maintenance bring difficulties, and at the same time, the hygienic condition of the equipment is very poor.The equipment 'runs, pops, drips, and leaks' is relatively serious, and the service life of the seals is relatively short, making the use cost of the equipment very high.Analysis of the causes of oil leakage in currently used reducers. Taking the S87 turbine reducer as an example, we analyzed that the main causes of oil leakage are as follows: (1) The gear shaft passes through the circular surface where the bearing is located. The end cover extends out of the reducer, and there is a certain gap between the shaft and the end cover hole. Due to the pressure difference on both sides of the sealing point, the splashed lubricating oil cannot flow back to the lower housing of the reducer in time after passing through the bearing, and the oil accumulates between the bearing and the reducer. between the end caps while the shaft is rotating Read More

Mechanical noise is the noise caused by the collision, friction, impact and vibration of mechanical parts during operation.When a pair of gears mesh, due to the inevitable existence of varying degrees of errors in tooth pitch, tooth shape, tooth direction, etc., coupled with changes in external loads, meshing impact will occur during operation and an emission corresponding to the gear meshing frequency will occur. Noise, friction sound will also occur due to relative sliding between the tooth surfaces.Gears are the basic parts in engine transmission. Reducing gear noise is very necessary to control engine noise. So what measures should be taken during the manufacturing process?So what is the mechanism of gear noise?In what form is the noise generated?1. Pulsation impact of meshing gear nodes. During the transmission process of a pair of involute gears, the trajectory of the contact points of each pair of gear teeth always runs continuously on the meshing line, as shown in Figure 1.O; is the driving gear driving the passive gear of 02 in the direction shown in the figure. Read More

In the Selection process of some customers, the user only provides a motor power and no other parameters. In this case, which reducer should be selected?Because there are no parameter requirements, there may be many types of reducers that can match the same motor power, such as gear type or worm gear type.What confuses users is whether a gear reducer or a worm gear reducer is better.In the process of use, different reducers are used differently.So gear reducers and worm gear reducers are more commonly used now.But there are big differences between these two reducers.1. Internal structure.The direct difference between the two different reducers is their internal structure.As for the gear reducer, the transmission structure inside is geared.As for the worm gear reducer, it may be a helical gear or a worm gear.Different forms will also directly affect efficiency.2 Read More

How to match the reducer according to the servo motor?This is a question that is often asked. To be precise, servo motors can be equipped with almost all reducers, but you must pay attention to the connecting flange.In application, how should we match the reducer according to the servo motor?What precautions should be taken during the adaptation process?Technical engineers gave the following reference: four dimensions and two principles to match servo motors with reducers.Two principles: Principle 1: Small servo motors can be equipped with large reducers, but large motors are generally not suitable for small reducers; Principle 2: The higher the rigidity of the same specifications, the better the quality; (the above reducers are all It can be equipped with a servo motor) in four dimensions: torque, speed ratio, accuracy, specification torque: the rated torque of the reducer must be greater than or equal to the rated torque of the motor multiplied by the reduction ratio.Assuming that the rated torque of the motor is 5N.M and the reduction ratio is 10, then the rated torque of the selected reducer model must be greater than 5*10=50N. Read More

How to quickly calculate the gear module of the F77 gear reducer?When choosing a reducer, people often ask you what is the gear module in this reducer?How to calculate it?Today I will recommend some simpler methods, I hope they will be useful to you!As shown in Figure 1 for the pump body, it is required to accurately measure the distance between the 13H7 hole and the 9H7 hole of 128 mm.Because the two holes are perpendicular to each other, it is difficult to detect using general methods. Figure 2 shows the inspection tool we specially designed for this purpose.The measuring head 6 in the measuring tool has a thread M2.5 and a dial indicator 7, and the measuring head (Figure 3) is a straight line, which facilitates the measurement of the mandrel 9 to accurately reflect the size on the dial indicator 7 when the mandrel 9 is connected in an emergency.At the same time, it is required that the dial indicator frame 4, the positioning axis 1 and the measuring mandrel 2 are equidistant, and the measuring mandrel is graded according to 0.002mm.The measurement method using this measuring tool is: select the measuring mandrel 9 that is suitable for the 9rmm hole in the pump body, and then insert the sample 8 into the measuring mandrel 2 of the measuring tool, and insert the measuring mandrel 9 into the measuring mandrel 2. Read More

If you are an insider, you should know that there is a self-locking reducer in the reducer. There are dynamic self-locking and static self-locking in the self-locking reducer.Different transmission efficiencies have different self-locking capabilities, so users often ask why they can't lock?First we need to understand efficiency.How is the efficiency of the reducer calculated?The efficiency of the reducer mainly depends on the design and friction conditions of the worm turbine transmission pair.For dynamic self-locking of turbine reducers.The dynamic self-locking of the reducer means that when the input shaft at the motor end suddenly stops, the output shaft can stop synchronously. The dynamic efficiency that meets the dynamic self-locking must be less than 0.4.Static self-locking means that when the reduction gearbox is in a stopped state, the load on the output shaft cannot push the worm, and the static efficiency needs to be less than 0.5. However, in the dynamic self-locking efficiency, when the static self-locking efficiency is greater than 0.6, Dynamically reversible; dynamically low and reversible when between 0.5-0.6; when between 0. Read More