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Mechanical Industry Standard of the People's Republic of China
JB/T7555-94
Inertial Vibrating Feeder
Published on December 9, 1994
Ministry of Machinery Industry of the People's Republic of China
Implemented on October 1, 1995
Mechanical Industry Standard of the People's Republic of China
Inertial Vibrating Feeder
Subject Content and Scope of Application
JB/T755594
This standard specifies the type, basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of inertial vibrating feeders (hereinafter referred to as feeders). This standard applies to inertial vibrating feeders driven by inertial vibrators that feed loose bulk and powdery materials from storage bins or hoppers to receiving devices evenly and continuously. Feeders can be installed horizontally or tilted. Reference standardsbZxz.net
GB1239
GB2806
GB2807
GB3768
GB8923
GB9286
Basic technical requirements for rotating electrical machines
Ordinary cylindrical spiral spring
Measurement method for electrical machine noise
Measurement method for electrical machine vibration
Determination of sound power level of noise source, simple method for electrical machine housing protection classification
Surface rust grade and rust removal grade of steel before painting Cross-cut test of paint film
Paint and varnish
Type and basic parameters
3.1 Type
Feeders are divided into general type and heavy type according to the bulk density of the conveyed material. General type is suitable for materials with a bulk density of less than 1.6t/m2, and heavy type is suitable for materials with a bulk density of more than 1.6t/m2. 3.2 Model
GZG口O-
Vibration frequency (number of poles) code
Feeding trough width code, cm
Type code, heavy type is Z, general type does not indicate inertial vibration feeder code
3.3 Basic parameters and dimensions
The basic parameters of the feeder shall comply with Table 1, and the dimensions shall comply with the provisions of Figure 1 and Table 2. The basic parameters of the inertial vibrator shall comply with the provisions of Table 3.
3.4 Marking example
The general inertial vibrating feeder with a feed trough width of 1250mm and a vibrator speed of 1450r/min is marked as: Inertial vibrating feeder GZG125-4JB/T7555--94The heavy-duty inertial vibrating feeder with a feed trough width of 1250mm and a vibrator speed of 960r/min is marked as: Inertial vibrating feeder GZGZ125-6JB/T7555-94 Approved on December 9, 1994
Implemented on October 1, 1995
GZG40-4
GZG50-4
G2G63-4
GZG70-4
GZG80-4
GZG90-4
GZG100-4
GZG110-4
GZG125-4
GZG130- 4 | | tt | | GZG150-4 | -6
GZG125-6
GZG130-6
GZG15 0-6
GZG160-6
GZG180-6
GZGZ125-6
GZGZ130-6
GZGZ150-6
GZGZ160-6
GZGZ180-6
GZGZ200-6
Feeding trough
Rated feeding amount
Flat down 10°
JB/T 755594
Feeding size
Actuator
(double peak value)
Rated voltage
Rated current
Power supply frequency
GZG40-4
GZG50-4
GZG63-4
GZG70-4
GZG80-4
GZG90-4
GZG100-4
GZG110-4
GZG125-4| | tt |
GZG110-6
G2G125-6
GZG130-6
GZG150-6
JB/T 755594
G2G160-6
GZG180-6
GZGZ125-6
G2G2130-G
GZGZ150-6
GZGZ160-6
GZGZ180-6
GZGZ200-6
Technical requirements
JB/T 755594
Continued table?
The feeder shall comply with the requirements of this standard and shall be manufactured according to the drawings and technical documents approved through the prescribed procedures. 4.2 Operating conditions
The altitude shall not exceed 1000m.
The ambient temperature of the operating location shall be -15 to +40℃. L
The average maximum relative humidity of the wettest month at the operating site is 90%, and the average minimum temperature of the month is not higher than 25℃C. Under this environmental humidity, it should be able to be safely put into operation after a long shutdown. 4.2.4
There is no explosion hazard in the surrounding medium of the operating site. There is no serious corrosive medium or medium that affects the electrical insulation performance around the operating site. When the power supply voltage (rated frequency) changes between 95% and 105% of the rated value, the feeder feeding amount can still maintain the rated value. When the frequency (rated voltage) of the inertial vibrator changes from the rated value by ±1%, the output power can still maintain the rated value. Continuous working system (S1 working system).
Feeder performance
The vibration rate deviation is ±2.5%.
Feeding amount deviation is ±10%.
The difference in amplitude values (double peak values) of the corresponding points on the two side plates of the feed trough shall not be greater than 0.5mm, and the lateral swing shall not be greater than 1mm. The machine can be started and stopped under load without any material jamming or blocking. When stopped, it should be able to pass through the resonance zone quickly, and the swing and jumping amplitude (double peak value) should not exceed 5mm. The noise during load operation should not exceed 85dB(A). Trough body The weld of the trough body should be flat, and there should be no local stress concentration defects such as incomplete penetration, cracks, slag inclusions, pores, etc. The mechanical strength of the weld should not be lower than that of the parent material. The trough body should be flat. The straightness along the length direction is 3/1000, and the profile of the transverse arc surface is 3/1000. The two thrust plates should be parallel and symmetrical, and their parallelism and symmetry are both 3/1000. The hole spacing deviation of the inertial vibrator installation hole is ±0.35. The exciting force of the inertial vibrator should be adjustable. The maximum exciting force should meet the requirements in Table 3. Continuous rated (S1 duty system) operation stator winding temperature rise does not exceed 85C. Bearing temperature rise (when ambient temperature does not exceed 40C) does not exceed 95C. The protection level should not be lower than the provisions of IP44 in GB4942.1, exciting force
JB/T755594
Rated speed rated power rated voltage rated current r/min
Electrical performance
4. 5. 1. 2
Over 85℃.
Power supply rated rate
Connection method number of phases
Insulation level
Power number
.76.00
The electrical performance of the inertial vibrator motor should meet the technical requirements of asynchronous motors specified in GB755.0. 667
The insulation grade of the stator winding of the inertial vibrator motor is Class B. When the ambient temperature does not exceed 40C, the temperature rise of the stator winding does not exceed the stall test performance, which should comply with the table.4 requirements. Table 4
Stalling torque
Rated torque
Stalling current
Maximum torque
Rated torque
Unevenness of air gap between stator and rotor:
JB/T7555-94
e/8≤2.35%
2/3a++8--0
Where: -Gas tolerance, mm:
8---Nominal air gap value (see Table 5);
81, 02.03-
Power kw
-Air gap value measured at a distance of 120°.
Air drying nominal value mm
Power kw
Air gap nominal value
4.5.1.5 Insulation withstand voltage test to ground
The frequency of the test voltage is 50Hz, the waveform is as close to the sine wave as possible, and the applied voltage is 1760V. The time for the voltage to increase from half value to full value should be no less than 10$, and the full value voltage test duration should be 1min without flashover breakdown. The insulation resistance of the winding in the hot state or after the temperature rise test, its insulation resistance value should not be less than 0.38MQ (measured by 500MQ meter 4.5.1.6
).
2 The stator coil shall be dipped in paint for no less than 3 times, and a complete rest should be formed at both ends of the coil after drying. 4. 5. 2
4.5.3. The mechanical properties of the shell material shall not be lower than QT40-17, and the mechanical properties of the support seat material shall not be lower than ZG270-500. Castings shall not have stress concentration defects such as cracks, pores, sand inclusions, etc., and shall be treated to eliminate casting stress. 4. 5. 4
The mechanical properties of the eccentric block material shall not be lower than 35 steel. Before assembly, flaw detection shall be carried out and there shall be no defects such as cracks. 4.5.5 The outlet of the junction box shall be installed with a rubber conduit and tightly fixed with a flange; the three-phase wires in the box shall be fixed reliably, and the inside shall be filled with heat-resistant and vibration-resistant fillers to fix the wires. The inertial vibrator bearings shall be selected with large radial clearance bearings, and the grease shall be aluminum disulfide composite 4.5.6
calcium-based grease suitable for vibration and high load.
The inertial vibrator shall run smoothly and without noise. The noise of idling (without eccentric block) shall not exceed 78dB(A). The vibration speed of idling (without eccentric block) shall not exceed 2mm/s. The vibrator sign shall be fixed in a prominent position on the inertial vibrator housing. The content of the label is as follows: model, name;
exciting force;
rated speed,
number of phases;
rated frequency;
rated power:
rated voltage;
rated current;
connection method:
enclosure protection level:
k. weight.
JB/T7555-94
4.6The vibration isolation spring of the suspension device shall comply with the requirements of grade 2 accuracy in GB1239. 4.7
All outsourced and purchased parts shall have a certificate of conformity and can only be assembled after being inspected and qualified by the quality management department. The product label shall be clear and neat and firmly fixed. 4.8
Before painting, the steel surface shall be rust-free and shall meet the requirements of Sa2 or St3 in GB8923. 4.9
The painted parts of the feeder should be painted with one layer of primer and two layers of topcoat. The last layer of topcoat should be sprayed after the test run of the feeder. The total thickness of the paint film is 80~100μm. The film adhesion should meet the requirements of level 2 in GB9286. When the feeder is installed, the projected area of the silo column acting on the feed trough shall not be greater than 1/4 of the silo outlet area. 4.11
4.12 The feeder is suitable for installation and use at a downward inclination of 10°15°, and can also be installed and used horizontally. 4.13
When two inertial vibrators are connected to the power supply, their rotation directions must be opposite and they must be started and stopped at the same time. When the feeder is stopped, reverse braking or energy consumption braking can be used. The inertial vibrator bearing should be lubricated every 400 hours when the feeder is running continuously. If the user complies with the storage and use conditions, the manufacturer shall repair or replace the product free of charge within 18 months from the date of shipment from the manufacturer if the product cannot operate normally or is damaged due to poor manufacturing quality. 5
Test method
The vibration frequency is tested with a vibration measuring instrument with an error of less than 2%. 5.2
The amplitude is tested with an amplitude measuring instrument with an error of less than 0.5mm. The measuring reference surface of the measuring instrument or vibration sensor should be perpendicular to the vibration direction. 5.3 Noise is tested with a sound level meter (A gear). The whole machine is tested according to GB3768, the motor is measured according to GB2806, and the vibration speed is tested according to GB2807.
5.5 The paint film thickness is measured with a magnetic thickness gauge, and the paint film adhesion is tested by a grid test according to GB.9286. The accuracy of the electrical measuring instrument should not be lower than 0.5 level (except megohmmeter), the accuracy of the three-phase wattmeter should not be lower than 1.05.6 level. The accuracy of the mutual inductor should not be lower than 0.2 level, the accuracy of the electric quantity transmission should not be lower than 0.5% (should not be lower than 1% during the inspection test), the accuracy of the digital speed meter (including the decimal frequency meter) and the slip rate meter should not be lower than 0.1% ± 1 word, the accuracy of the torque meter and the dynamometer should not be lower than 1% (should not be lower than .0.5% when measuring efficiency), the accuracy of the dynamometer should not be lower than 1.0 level, and the error of the thermometer should be within ± 1 °C.
When selecting the instrument, the measured value should be within the range of 20% to 95% of the instrument range. 6
Inspection rules
6.1 The feeder should be subjected to factory test and regular performance test. The factory test is carried out at the manufacturer. After idling for 2 hours, the following should be checked: 6.1.1
Amplitude;
Voltage, current;
Temperature rise of inertial vibrator bearing;
Appearance is smooth and beautiful.
Periodic performance test is carried out in the manufacturer, and at least one unit of each specification is sampled each year: Check the following items under load conditions: Amplitude:
Feeding amount:
Current;
Temperature rise of vibrator bearing;
Noise.
6.2 The motor of inertial vibrator should be inspected and type tested. All test items should be carried out in the manufacturer. During the test, the product should be in a completely good condition.
JB/T755594
6.2.1 Inspection test
Each newly assembled motor should be inspected and tested. The inspection test items should comply with the test items of asynchronous motors in Article 15.5 of GB755.
Type test
The motor shall be subjected to type test in any of the following cases, and the type test items shall comply with the test items for asynchronous motors in Article 15.5 of GB755:
When the trial production of new products is completed;
When the changes in motor design or process are sufficient to cause certain performance changes; When the inspection test results produce an unacceptable deviation from the previous type test results; Regular sampling tests specified in relevant standards.
Marking, packaging, transportation and storage
Each product shall be fixed with a product label in a prominent position on the side of the feed trough. The label content is as follows: a.
Manufacturer name;
Product name and model;
Feeding amount;
Power;
Vibration frequency:
Amplitude;
Weight:
Factory date and factory number.
The main body of the product is shipped in assembled form box packaging. The inertial vibrator is partially waterproofed, and the accompanying documents are sealed in a plastic bag and then packed into a small box together with the suspension device and controller. 7.2.1
The small box is fixed on the chassis of the main box; the small box should be packed according to the waterproof requirements. Plywood or suitable materials are nailed to a prominent position on one end surface, and the delivery and receipt marks are sprayed on it. 7.2.2 The
mark on one side of the lattice box must be clear and eye-catching and not fall off.
7.3 Random documents:
Packing list;
Packing list;
Product certificate;
Product inspection record:
Product instruction manual;
Product installation drawing;
List of spare parts.
Additional instructions:
This standard is proposed and managed by the Beijing Hoisting and Conveying Machinery Research Institute of the Ministry of Machinery Industry. This standard is drafted by the Beijing Hoisting and Conveying Machinery Research Institute. The main drafters of this standard are Wang Zhiquan, Pan Jin, Liu Yufu, Jia Fuhua, and Cheng Aiguang. 8
People's Republic
Mechanical Industry Standard
Inertial Vibrating Feeder
JB/T 755554
Published and distributed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (PO Box 8144, Beijing
Copyright reserved
Postal Code 100081)
No reproduction allowed
Format 886×12361/16
Printing Sheet 3/4
Word Count 16.064
First Printing in May 1995
First Edition in May 1955
Number 00.001-500
Price 6.00 Yuan
Number 94--164
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