The high efficiency of the transmission system reaches 99. The angular displacement compensation is large. Compared with straight gear couplings, it has the following characteristics: Strong bearing capacity..7%. The components of the drive shaft.
Based on the above characteristics, countries in the world have widely replaced straight tooth couplings with drum-shaped teeth. It is the most common connection in medium and heavy machinery and equipment.Among the various types China CV Joint of couplings, the drum gear coupling has the advantages of small and medium-sized, large transmission torque, strong ability to absorb coupling errors, and high-quality durability. Drum-shaped gear couplings are rigid, flexible, and inelastic, so they are not suitable for use in industrial equipment with strict requirements for shock absorption, buffering, and two-axis alignment.
The drum-shaped tooth surface improves the contact standard of the inner and outer teeth, prevents the edge of the straight tooth tooth from being extruded and formed under the angular displacement standard, and the disadvantage of stress, and also improves the friction and damage of the tooth surface, and reduces Noise and a long maintenance period; The tooth end of the outer gear sleeve is like a sound horn, which makes the assembly and disassembly of the inner and outer gears very convenient.
One is to use a knife-shaped ruler and feeler gauge to measure the deviation of the coupling. The second is to use a dial indicator and a gauge frame to measure the misalignment and non-parallelism of the two couplings. It is worth noting that during the installation process, measurements and adjustments are required to ensure its safety.The cross shaft universal coupling can make two shafts that are not on the same shaft or have a large angle disconnection or large axial movement continuously rotate at the same angular velocity, and reliably transmit torque and motion.
This method is suitable for devices with low accuracy requirements or slow flexible connections.. To Cross shaft universal coupling is currently the most widely used coupling. This method is suitable for high-speed, rigid connection, and high-precision rotating equipment
5°, it is recommended to prefer inexpensive elastic pin coupling Shaft, when the radial deviation of the two shafts is not more than 0. Couplings containing non-metallic components such as rubber are prone to aging and deterioration under the action of high temperature and corrosive media, so they are not suitable for use in this environment., rather than using a biased slider coupling.15mm and the angular deviation is not more than 0.
Regarding high-speed transmission, couplings with high balance accuracy should be selected, such as diaphragm couplings, gear couplings, etc.5°, the universal coupling should be considered. If it is difficult to align and the rigidity of the shaft is poor, a coupling with the ability to compensate offset can be used. Regarding non-standard mechanical equipment that does not exceed tens of kilowatts and Wholesale CV Axle manufacturers has little impact on general roads, when the radial deviation of the two shafts is not more than 0. Regarding heavy-duty transmission with high power and no impact, gear couplings are preferred.
If high working reliability of the coupling is required, couplings made of metal components that do not require smoothness should be selected, such as diaphragm elastic couplings, roller chain couplings, etc.15mm and the angular deviation is not more than 1°, it is recommended to prefer the cheap plum-shaped elastic coupling; only when the radial deviation and angular deviation of the two shafts When the shift is larger, consider choosing gear couplings and tire couplings with better compensation function and more expensive; when the angular deviation is not more than 1.
Examples of coupling applications! Regarding the low-speed shaft with stable load, if the two shafts are aligned accurately and the shaft has good rigidity, a rigid coupling can be used. If the two shafts form a certain angle, a universal coupling can be used. Couplings that require smoothness, such as gear couplings, slider couplings, etc., may pollute the environment and should not be used in occasions that require a particularly clean environment.
Regarding heavy-duty transmissions with severe impact loads at the same time, it is recommended that couplings with high elasticity such as rubber metal ring couplings, tire couplings or reed couplings should be preferred. For relative displacement and harsh working environment, roller chain couplings can be used
Laser axis alignment is a very effective way to maintain industrial rotating machinery. Misalignment occurs when the rotation center lines of two or more mechanical shafts are not aligned with each other. Laser axis alignment is a natural complement to vibration analysis.
Correctly aligning the shaft can eliminate one of the main causes of vibration in rotating machinery, and can greatly extend the life of the bearing. Using the most advanced laser measuring system, the technician will measure and align the coupling, universal joint and belt. The U.S. Department of Energy's Industrial Technology Program (ITP) aims to improve energy efficiency and recommends annual inspections of shaft alignment in production critical equipment.
It has been observed that performing coupling alignment as planned will result in longer machine life and higher execution efficiency Large motors can be directly, rigidly coupled or flexibly coupled. Rigid couplings cannot compensate for any misalignment of the motor to the drive equipment, while flexible couplings can withstand a small amount of misalignment. ITP recommends that the parallel offset alignment tolerance should not exceed 2 mils Drive Axle at 1200 rpm and 0.75 mils at 3600 rpm. Due to excessive centering, even flexible couplings can cause premature failure of bearings, seals or couplings.
Other effects include loosening the anchor bolts and connecting bolts. Qualified technicians can detect this "soft foot" condition. When the motor drive shaft and the driven device are at a certain angle, the laser shaft alignment can prevent angular misalignment. It can also prevent parallel misalignment when the two axes are offset vertically or horizontally, moved to the left or right or positioned at different heights.
