YDB and yzb explosion-proof electric drum is a driving device for conveying machinery used in the environment of explosive mixture formed by combustible gas, gas and dust. The product complies with JB / t7330-2008 electric roller. The flameproof performance complies with GB3836 1-2000 electrical equipment for explosive gas atmospheres, general requirements, GB3836 2-2000 electrical equipment for explosive gas environment, flameproof type "d". The explosion-proof signs are di, diiat and diibtdi, which are applicable to mines with explosion hazardous mixture of methane or coal dust. It is applicable to the places where there are explosive dangerous mixtures of class I and IIA, groups t ~ t, DIBt. Applicable to class I, IIA and IIB T Places where explosive dangerous mixtures of group t exist. 2. Working conditions
2.2 the altitude shall not exceed 1000 meters.
2.1 the operating ambient temperature is - 15 ℃ ~ 40 ℃. 2.3 the temperature of transported materials shall not exceed 60 ℃
2.4 frequency: 50Hz
2.5 voltage: 380 / 660 V, 660 / 1140 v. 3. Characteristics
3.1 all electrical components that are easy to cause sparks can be contained in the flameproof enclosure. 3.2 compact structure and small occupied space.
3.3 convenient use and maintenance, safe and reliable operation and long service life. 3.4 it can meet the requirements of various backstop, braking, rubber coating, etc. 4. Installation and commissioning
4.1 the rolling Jane shall be in a horizontal position, and vertical installation is not allowed, and the inclination angle shall not exceed 5 degrees. 4.2 the bolts at the support shall be fastened without looseness.
4.3 inject N46 mechanical oil into the drum through the oil filling hole. The opening flash point shall not be less than 180 ℃, and the oil level height is: YDB type is 2 / 5 of the drum diameter Yzb type is 2 / 5 to 1 / 2 of the drum diameter.
4.4 the rotating drum shall rotate flexibly without jamming.
4.5 connect the motor lead with the circuit of the electrical control cabinet, check whether it meets the requirements of the drum nameplate, and make the body shell well grounded.
4.6 the unidirectional rotating drum is equipped with a check device. When connecting the motor, the rotation direction of the motor shall be found out according to the rotation direction mark code of the drum. The rotation direction of the motor with YDB power less than 15kw is opposite to that of the drum, and the rotation direction of the motor with power more than 18.5kw is the same as that of the drum
To the same. When the rotation direction of the motor cannot be detected, it can be detected by live inching. When the check device is outside, the solid bolts of the check device can be removed to separate the stop from the end cover of the drum, which can be detected by inching.
4.7 turn on the power supply and carry out no-load test run for 1 hour. The whole machine should rotate smoothly without impact and large periodic noise.
5. Use and maintenance
5.1 before conveying, the conveyor shall idle for a moment, and the feeding can be carried out only after the operation is normal.
5.2 materials shall be delivered evenly and continuously, and overload shall be avoided.
5.3 in the process of transportation, frequent start-up should be avoided as far as possible. In case of sharp rise in temperature and abnormal noise, the use should be stopped, the causes should be checked and eliminated.
5.4 parts and flameproof surfaces with flameproof performance shall not be disassembled at will. When maintenance is needed, do not bump or scratch the flameproof surface. During assembly, the flameproof surface shall be coated with 204-1 antirust grease. The following mating surfaces belong to flameproof mating surfaces.
5.4.1 explosion proof mating surface of YDB and yzb explosion-proof oil-cooled electric drum.
a. Cylinder and left and right end covers; b. Gland, left and right flange shafts and left and right end caps; c. Left end cap and oil plug; d. Cylinder and round head oil plug; e. Air outlet bolt, right flange shaft and air outlet cap; f. Left flange shaft head and left support; g. Left support and junction box base; h. Junction box base and junction box shell; i. Junction box shell and junction box cover; j. Junction box shell and terminal block; k. Terminal block and terminal screw.
5.5 the lubricating oil of the drum shall be changed after one month of operation, and then every other year.
6. Selection instructions
6.1 the standard specifications of our factory shall be selected as far as possible during model selection. If there are special requirements, it shall be determined through consultation with our factory.
6.2 the rotation direction of the non-return drum must be observed facing the motor terminal. Clockwise rotation is marked with "s" and counterclockwise rotation is marked with "n". When backstop is not required, the rotation direction code is not marked.
6.3 if the roller surface needs to be coated with glue, please indicate it in the contract. 6.4 different explosion-proof signs shall be indicated according to different explosion-proof places.
6.5 it shall be used within the output torque range of the electric drum, and the output torque of the electric drum shall be calculated according to the following formula:
P = power (kw)
M-500xD × P
Where: m-torque (nm) v = belt speed (M / s)
D = drum diameter (m)
6.6 order code Description:
7. Basic parameters, outline and installation dimensions
7.1 basic parameters, shape and installation dimensions of YDB flameproof oil cooled electric drum 7.2 basic parameters (see Table 1)
Basic parameters of yzb flameproof oil cooled electric drum
7.1.2 outline and installation dimensions (see Figure 1 and table 2)