Henan mine crane co., LTD., drum coupling is introduced:
A, drum coupling overview
1.1 drum coupling is a new kind of flexible coupling, it is mainly used for lifting equipment lifting mechanism in the connecting the reducer output shaft with the cable drum, can also be applied to other similar transmission torque and bear radial load of machinery and equipment, but can not be used as a drive to carry axial load.
1.2 drum coupling working temperature is 25 ~ + 80 ° C;Pass nominal torque is 16 ~ 560 kN?M;The allowable radial load is 18 ~ 355 KN.
1.3 compared with other drum coupling, drum coupling has the following features:
1.3.1 work stable and reliable, and can withstand the big radial direction load and transfer bigger torque, overload ability.
1.3.2 compact structure, series design, can simplify the structure of the machine, reduce weight of equipment.
1.3.3 level performance is good, convenient installation, adjustment, maintenance is simple.
1.3.4 has localized wear instructions, safe and reliable.
1.3.5 can with ordinary shaft type reducer, reduce the equipment cost.
Second, the structure characteristics and working principle
2.1 drum coupling with drum gear tooth shaft sleeve, connected with the flange and the gear ring jacket, belt outside the spherical bearing ring, end cover and sealing ring, etc, and is equipped with localized wear pointer, lubricating oil hole and vent, etc.
2.2 gear shaft sleeve and coat in the composition of drum type coupling transmission driving power, and by the bearing ring of outer spherical surface and the coat of the bearing surface, formation of the contact pair constitute the automatic level of the spherical bearing, bear radial load.
2.3 coupling of internal and external toothing work in the oil bath, by inside and outside the end cover and seal to prevent leakage of grease.
Three, installation, debugging
3.1 coupling before the installation, should check the connection with the surface, and wash away anti-rust oil, remove the burr, clean all the oil, etc.
3.2 this coupling is typically for surplus to cooperate, should suit to the collapse of the heat.After the collapse of, all parts should be placed centrally, so as to avoid loss and damage.
3.3 installation, first will cover and seal trap outer gear reducer side of the shaft sleeve, then heat the outer gear shaft sleeve suit on reducer output shaft.Note that the heating temperature according to the size of the over surplus quantity of the and to calculate and determine the ambient temperature.
3.4 coat (internal tooth flange) combined with internal end cover into the sealing ring after completes the appearance of the antirust coating and locate fastening set into the drum.
3.5 mobile sleeve fit on the outer gear shaft sleeve is slow, at this time should be paid attention to on the set of location and steel yards.
3.6 when installation, must guarantee that wear accurate location of the pointer and correction value of L1.
3.7 coupling and drum coupling and end cover fastening strength should be adopted for the performance level is greater than or equal to 8.8 bolt group.
3.8 installation, the drum diameter D0, every 900 measuring gear reducer end face and the distance between the drum end E.
3.9 this coupling can't carry axial load.Drum work when the additional axial load must always be fixed by roll bearing seat, therefore, coupling installation must ensure that the axial location correctly.Or drum when the job elastic horizontal displacement could damage coupling axial spacing, causing connection failure, and even have serious accidents.
3.10 coupling installation specifications should be used for PT1/4 flat nozzle, through the joint connection.This coupling installed.
Fourth, use and maintenance
4.1 coupling wear pointer and the relative position between the localized wear notch, the condition of the connecting bolt, etc., at least once every three months to check.
4.2 coupling axial string momentum beyond limit, must adjust the drum of the fixed set of supporting axial clearance, and lock (see figure 4).
4.3 if the positioning of the coupling wear pointer and positioning wear notch relative displacement amount exceeds the value of m1 in figure 4, explain the drum tooth coupling has been wear and tear to limit the thickness of the failure.Coupling should be timely replacement.
4.4 when drum job need to inherit the positive and negative two-way load, wear a pointer and the location of the wear indentation between the relative displacement value for 2 m1.
4.5 coupling of tooth surface lubrication condition, directly affecting the service life and safety and reliability.So at least once every 3 months must check coupling lubrication condition, and infuse a grease.When the device stop after a quite long period, should replace all grease, failure to prevent grease day long.
4.6 normal working conditions, a grease must be replaced at least every six months.
