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The intact standard of the winch should be carried out according to the corresponding national standards according to the use.
Winch, lifting equipment that uses a drum to wind wire ropes or chains to lift or pull heavy objects, also known as a winch. The winch can be used alone, or it can be used as a component in machinery such as lifting, road construction and mine lifting.
The integrity of the winch belongs to the integrity of the equipment. Its basic contents include: the equipment is in good performance; The equipment is running normally, such as the wear and corrosion of parts does not exceed the technical standards, the lubrication system is normal, and the equipment is running without over-temperature and over-pressure; The consumption of raw materials, fuels, oils, etc. is normal, and there is no leakage of oil, water, steam, and electricity.
Specific standards are also specified for different types of equipment.
According to the requirements of the 2009 "People's Republic of China *** Order" (No. 549) "Regulations on the Safety Supervision of Special Equipment", many winches belong to the "elevator" and "lifting equipment" in the regulatory catalog. The standard of good condition of such equipment shall be carried out in accordance with national requirements or standards. Such as GB 20180-2006 "Safety Requirements for Mine Auxiliary Winch", GB 20181-2006 "Safety Requirements for Mine Hoist and Mine Hoisting Winch", etc.
The following is a winch room (not a winch) equipment integrity standard for reference.
The winch room equipment is in good condition and standard.
1. Bolts, nuts, back caps, washers, cotter pins, and guards should be complete, complete, and tightened.
2. There is no open welding, cracks and deformation of the drum, rivets, keys, etc. are not loose, the movable drum clutch and positioning mechanism are flexible and reliable, the bushing is well lubricated, and the drum lining is not less than 5 after wearing.
3. The length of the tooth along the occlusal surface of the gear of the reducer gear shall not be less than 50%, and the height of the tooth shall not be less than 40%; The tooth thickness wear shall not exceed 15% of the original tooth thickness; Exfoliation of the tooth surface does not exceed 25% of the effective area of the tooth; The oil quality is qualified, no oil leakage, and there is no abnormal sound during operation.
4. The difference between the outer diameter of the rubber ring of the elastic coupling and the bore diameter shall not exceed 2, the tooth thickness of the tooth coupling shall not exceed 20%, and the thickness of the serpentine spring shall not exceed 10%.
5. The levelness deviation of the spindle and the reducer does not exceed , and the bearing has no cracks and spalling. 6. The oil brake system does not leak oil. The working stroke of the brake does not exceed 3 4 of the full stroke.
7. The oil quality of the lubrication system is qualified, the oil quantity is appropriate, the oil pressure is normal, the oil circuit is smooth, the oil ring rotates flexibly, and there is no oil leakage in each part.
8. The depth indicator indicates correctly, the pointer stroke is not less than 3 4 of the full stroke, there are loose rope and brake shoe wear signals, over-rolling, over-speed, speed limit, emergency brake foot switch, low voltage, over-current, oil pressure, commutator and fence door protection locking, deceleration alarm bell and other safety devices, and complete, accurate and reliable.
9. The motor and high-voltage switchgear should meet their intact standards. The high-voltage commutator has good contact with the magnetic station.
Good, no leakage, arc suppression device complete, complete, no cracks. The relay protection device is regularly calibrated, accurate and reliable. The resistors are in good contact, do not ignite, and are well grounded.
10. The equipment and machine room are tidy, and the tools and spare parts are stored neatly.
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1. There is no crack, damage or deformation of the drum device;
2. Brake and brake wheel: (1) The brake handle and lever system are flexible and reliable, and the position of the brake handle does not exceed the horizontal position after the brake is applied (2) The tie rod bolt, fork head, brake handle, and pin shaft are not damaged and deformed, and the tie rod bolt should be fastened with a back cap (3) The brake belt is not broken, and the wear margin is not less than 3mm, and the rivet is reliable and not loose (4) The wear depth of the brake wheel is not more than 2mm, and there is no oil stain on the surface of the brake wheel.
3. (1) There is no crack in the base, the base screws are fastened, and the guard plate is complete and complete, without deformation; (2) The installation is stable and firm, there is no abnormal sound in operation, and there is no oil throwing phenomenon; (3) The signal device should have both sound and light, clear and reliable;
4. The wire rope is fixed firmly on the drum, and the rope clamp is not less than two pairs; The wire rope is not knotted.
5. The rope head must be equipped with a peach-shaped ring and fixed with 3 rope clips, and the screws must ensure a double wire cap.
6. The winch must be hung with the "four pressures and two cracks" warning sign and the winch management board, and the content of the management board must be filled in.
7. The winch switch is on the shelf, multiple switches are placed neatly, and the plane of all switch racks must be kept in the same horizontal plane; Small piece on board management (board size: 500 400m).
8. A protective fence should be installed at about 300 500mm in front of the small winch, and the height of the protective fence is made of round steel with a diameter of 14mm, and the spacing is 200mm, and the red paint is brushed.
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The winch chamber must be explosion-proof in the underground, and it does not have to be explosion-proof on the ground. The choice of winch also depends on 1, the inclined shaft is a two-lane or a single-lane, the two-lane should use a double drum, and the single lane should use a single drum. 2
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This is a national standard.
The technical specification for winch installation refers to the technical requirements and guidance for the installation and use of winch equipment. In China, technical specifications for winch installation are usually formulated by relevant national departments or industry organizations and issued in the form of national standards.
The chain hole standards of the winch installation technical specifications are as follows:
1. National standard (GB): formulated and issued by the National Standardization Management Committee, which has legal effect and is applicable nationwide.
2. Industry standard (JB): formulated and issued by the industry standardization technical committee or industry organization, applicable to a specific industry.
3. Enterprise standard (dB of sheds): a standard formulated by the enterprise itself, which is applicable to the installation and use of winches within the enterprise.
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There are various types of winches, and winches can be divided into the following categories according to different ways:
1) According to the wire rope winding method: it can be divided into winding winch and friction winch.
2) According to the number of drums: it can be divided into single roller hole winch and multi-drum winch.
3) According to the transmission mode: it can be divided into gear transmission winch and hydraulic transmission winch.
4) According to explosion-proof performance: it can be divided into explosion-proof winch and non-explosion-proof winch.
5) According to the diameter of the drum: it can be divided into winches and the following.
6) According to the driving power: it can be divided into electric winch and pneumatic winch.
7) According to the different uses: it can be divided into mining hoisting winch.
Sinking winch, rake winch, dispatching winch, return column winch, etc.
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1.It is suitable for all kinds of internal gear winches and handling winches with a drum diameter of less than that.
2.The new small winch must be completed with three certificates, namely coal safety certificate, anti-riot certificate, and quality certificate; After overhauling.
Or the overhauled small winch meets the quality requirements and intact standards of the well, and the imperfect equipment is strictly forbidden to be used.
3.Establish a perfect maintenance and inspection system, mechanical and electrical equipment to carry out class inspection, winch rope implementation day inspection. And fill in the electromechanical carefully.
Inspection records, wire rope inspection records, mechanical and electrical equipment maintenance records.
4.Before the start of construction, the inspectors, relevant staff and winch drivers carefully confirm the safety to ensure safe operation.
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1.Strictly implement the "Coal Mine Safety Regulations" and other relevant transportation management regulations.
2.Send a special person to check the use of the wire rope of the winch, make a record, and replace the wire rope in time if it is found that the wire rope is broken or worn beyond the regulations.
3.The system of "no pedestrians, pedestrians not pedestrians" is strictly implemented when pulling and releasing cars on the mountain, and the winch drivers and hook workers are responsible for the implementation of the checks.
4.The winch drum must have a protective plate to prevent the broken rope from hurting people.
5.The small winch driver must be licensed, familiar with the scope of responsibility, and operate normally. The hook puller must be relatively fixed, and they must be allowed to do the job as long as they go to work.
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1. The winch must be set up according to the requirements of the specification. Its specification net height is not less than the meter, the net width is meters, and the net depth is meters. The roadway along the air supply roadway is determined according to the actual situation of the roadway, and the principle of not affecting the safe operation is not affected.
2. The winch construction should be excavated with a pickaxe as much as possible, and the wooden shed or I-shaped steel shed can be used for support according to the different support types of the roadway. When the roof is intact, the anchor net is used, and when the roof is broken, the frame shed is supported.
3. The foundation of the small winch should be poured with concrete, and its foundation specification is meters. The mix ratio of cement, yellow sand and gravel (melon seed slices) in concrete is 1:2:2; The water-cement ratio is.
4. When the winch is supported by the shed, it should be carried out from the outside to the inside one by one, and the shed should be connected with a brace wood or tie rod to form a whole, and the waist and help should be tightly backed. The distance between the sheds does not exceed meters. When using anchor net support, the row spacing of the anchor rod is 800 800mm.
5. The winch motor should be installed on the inside of the small winch nest, and the distance between the operating space should not be less than meters; The operation button is put on the shelf, and the switch is placed neatly and must not hinder the operation of personnel.
6. Others shall be implemented in accordance with the relevant provisions of the operating procedures.
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Please refer to the following:
Winch safety operation procedures.
JD25 winch safety operation procedures.
Winch lifting and operation procedures.
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The main technical indicators of the winch are rope speed, rope capacity, number of drums, drum diameter, lifting capacity (maximum static tension of wire rope), drum width, maximum diameter of wire rope, power of motor, etc.
Hope it helps.
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Model: Quantity of Raw Rope Diameter (mm) Traction Electric Power (kW) Weight JZM-25 800152250KN55KW20MT2JZM-25 800252250KN75KW37MT2JZM-25 1350252250KN75KW38MTJZM-40
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