(1) an overview of the external electric drum;

The external electric drum is a new type of electric drive device, which is installed outside the cylinder body and the reducer is arranged inside the roller. It not only has all the advantages of the original electric roller, but also overcomes the disadvantages of poor heat dissipation conditions, easy burning and the power limitation of the motor. The power of the motor can reach 160kW or even greater.

External electric drum type L, type II, type III three installation, can meet the different installation requirements of internal gear transmission structure is also currently has three kinds: fixed axis gear, cycloid gear, halo, carefully design each hairpin, the use of safe and reliable.

Matching power adopts Y series standard motors, such as YB series flameproof motors, which can be applied to the field station with flameproof requirements. Therefore, all types of external electric drum can be sent into flameproof type.

External type electric roller produced by our company with (GB5014-85) HL type elastic pin coupling: the power to improve the innocent, starting performance, can be used YO * Limited moment hydrodynamic coupling instead of coupling; the braking requirements of the brake can be installed using Yw type power brake, hydraulic block brake. And corresponding with the brake wheel coupling or equivalent coupling; a one-way non-return requirements can be added with a backstop.

The company can design the motor bracket and brake, coupling, hydraulic coupling, protective cover and so on. The design department will be carried out according to the user's requirements.

The production of external motor roller has been widely used in ports, mines, metallurgy, power and other departments of large and medium-sized belt conveyor, by the user - praise.

(two) external type of electric drum classification WI

　　（三）、外置式电动滚筒规格选用表

　　（1）WDTN型系列参数表

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Note: the "O" symbol only with 6 pole motor: "delta" symbol only with 4 pole motor: "mouth" symbols can be equipped with 6 pole motor, also can be equipped with 4 pole motor. If not specified, the 4 pole motor will be preferred

(2) WBTN series parameter list;

Note: 1 table with B18~B33 will be preferred to use 4 pole motor, with B39~B45 choose 6 pole motor.

In the 2 table, in the rough line frame, chooses the 6 pole motor or uses the two-stage cycloid drive to decelerate.

(3) WXNT series parameter list;

Note: the "O" symbol only with 6 pole motor; "delta" symbol only with 4 pole motor.

(four) external electric drum shape and installation size;

Table 1. part shape and mounting dimension of roller body

Note: the value of Ll in the figure is the dimension of the input bearing center to the shaft shaft and the extension of the shoulder blade. For example, the W type II type straight connection shaft type external electric roller is the reference dimension of the input bearing center to the motor flange end face.

2.WI drive part mounting dimension table

Note: 1. the hydraulic couplings in the table shall be of reference size

2. couplings and couplings shall be shown in Appendix

3.WII drive part mounting dimension table

　　Figure three: WIIG vertical motor direct coupling type

Figure four: WII vertical motor direct coupled shaft type

Note: 1., on the table WIIG drive part installation size, please refer to the external table six related data.

2. motor frame number is greater than Y200, it is recommended to use B35 type motor, the table in the letter definition, see external six.

4.WIII drive part mounting dimension table

(five) external electric roller drive part, motor, pin pin coupling, coupling, brake type corresponding table

(six) appendix: dimension parameter list of mating couplings, couplings and brakes

Appendix 1: HL, HLL type resilient pin couplings

1, 4, semi coupling; 2 gear: 3 pin; 5 screws; 6 washers; 7 brake drum

Appendix two: YOX limited rectangular hydraulic couplings

Note: this series of torque limiting hydraulic couplings all adopt Y type long cylindrical shaft bore and A keyway type, size, tolerance and all non injection sizes, tolerances and technical requirements are made according to the national standard.

Appendix three: YOX type brake belt type hydraulic couplings

1 brake wheels, 2 connecting shafts, 3 housings, 4 turbines, 5 spindles, 6 pump wheels, 7 rear auxiliary chambers, 8 connecting plates, 9 fusible plugs

Note: this series of brake wheel type torque limiting hydraulic couplings all adopt Y type long cylindrical shaft bore, A keyway type, size, tolerance and all non injection sizes, tolerances and technical requirements are made according to the national standard.

Appendix four: model YWZ5 power hydraulic block brake