Is the drum gear coupling damaged and widely used?

Coupling is an important accessory in the pump valve industry and one of the connecting accessories.So, what is the damage and widespread use of the drum gear coupling? The following is the content about it brought by the editor, and I hope that we can have a harvest!

Drum-shaped gear coupling is damaged and the coupling is widely used

Causes of damage to the drum gear coupling:

1. When using the coupling, the equipment in the shafting system, such as diesel engines, gearboxes, shafting and high-elastic couplings, must make up for each other in planning and application, and the level of planning and production is relatively high. , The quality of the vessels planned in this way is also very high.

2. The main reason is that the vibration damper of the main engine has sunk, which makes the shafting of the coupling appear asymmetry, and then increases the additional torque, which makes the highly elastic coupling in use When the heat is distributed, there is a cracking incident.

3. Because the application range of the coupling is relatively wide, it is widely used in many occupations.It may be improper to use the method in specific situations, or the time of use is not considered comprehensively, which will also cause the coupling to be damaged during use.

Drum-shaped drum-shaped gear couplings are rigid, flexible, and inelastic, so they are not suitable for machinery that requires damping, buffering, and two-shaft alignment.

1. Strong bearing capacity.Under the same outer diameter of the inner gear sleeve and the outer diameter of the coupling, the load-bearing capacity of the drum-shaped gear coupling can be evenly improved by 15-20% compared with that of the straight-drum gear coupling.

2. The tooth end of the outer gear sleeve is in the shape of a horn, which makes the assembly and disassembly of the inner and outer teeth very convenient.

3. The transmission power is as high as 99.7%.

4. The drum-shaped tooth surface improves the touch conditions of the inner and outer teeth, avoids the disadvantages of kneading and stress concentration on the edge of the straight tooth under the condition of angular displacement, and improves the conflict and wear of the tooth surface. The noise is reduced, and the repair cycle is long.

5. Large angular displacement compensation.When the radial displacement is equal to zero, the allowable angular displacement of the straight drum gear coupling is 1o, and the allowable angular displacement of the drum drum gear coupling is 1o30, which is an increase of 50%, at the same modulus , The number of teeth, and the width of the teeth, the angular displacement of the drum-shaped tooth is larger than that of the straight tooth.

Couplings are widely used in shaft transmission of various mechanical equipment, such as water pumps (especially high-power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, Metallurgical machinery, aviation (helicopter), naval high-speed power transmission systems, steam turbines, piston-type power mechanical transmission systems, crawler vehicles, and generator sets high-speed, high-power mechanical transmission systems, which are used in high-speed transmission shafts after dynamic balance Has been more extensive.The diaphragm coupling is composed of at least one diaphragm and two shaft sleeves.The diaphragm is fastened to the sleeve with a pin and generally will not loosen or cause backlash between the diaphragm and the sleeve.Some manufacturers supply two diaphragms, and some supply three diaphragms, with one or two rigid elements in the center, and the two ends are connected to the shaft sleeve.

The structure and application method of drum gear coupling

The drum gear coupling is composed of an internal gear ring with the same number of teeth and a flange half coupling with external teeth.

The drum gear coupling is composed of an inner gear ring with the same number of teeth and a flange half coupling with external teeth.The first is to match the coupling according to the requirements of the mechanical application. There are cast iron and steel, and hydraulic gull aluminum. The structure is complicated. The first is the gear sleeve connection (and the two gears share a gear sleeve. ), cross slider coupling, rubber ring bolt hole connection (single-sided perforation and double-sided penetration perforation), fluid coupling, plum blossom pad butt connection, nylon rod hole connection, and gears directly drive the machine.Drum-shaped gear couplings have small radial dimensions and large load-bearing capacity. High-precision and dynamically balanced drum-shaped gear couplings can be used for high-speed transmission and are often used for shaft transmission under low-speed and heavy-duty conditions.

The so-called drum tooth is to make the outer tooth into a spherical surface, the center of the spherical surface is on the gear axis, and the tooth side gap is larger than that of the general gear. The drum tooth coupling can allow larger angular displacement (compared to the straight tooth coupling) , It can improve the touch condition of the tooth, improve the ability of transmitting torque, and extend the service life.

The elastic sleeve pin coupling structure is relatively simple, simple to manufacture, does not need to be smooth, does not need to be bonded with metal vulcanization, it is convenient to change the elastic sleeve, does not need to move the half coupling, and has the function of compensating the relative deviation of the two shafts and damping and buffering. .The elastic sleeve pin coupling is based on the locking force of the pin group to generate the conflicting moment on the touch surface, and the rubber elastic sleeve is compressed to transmit the torque.The elastic sleeve operation is subject to contraction and deformation, because the thickness of the elastic sleeve is thin, the volume is small, and the elastic deformation is limited. Therefore, although the elastic sleeve pin coupling can compensate the axis displacement and elasticity, the allowable compensation amount for the axis displacement is less. The elasticity is weak.The elastic sleeve pin coupling was once a widely used coupling in our country. It was formulated as a standard for the Ministry of Machinery in the late 20s. The JB50-08 elastic ring pin coupling is a standard coupling for my country. Device. In the new GB/T60-4323 standard, the reason is that the elastic element composed of several elastic rings is changed to an integral elastic sleeve.

The above is about the content of the drum gear coupling. I believe that we have a certain understanding beyond the reading. We update a lot of gear coupling information on time every day, and love to be able to save our website.