JT/T 1298-2019Port pedestal crane (English PDF)

Foreword

This standard is in accordance with GB/T Draft the rules given in 1-2009.

This standard was proposed and managed by the National Port Standardization Technical Committee (SAC/TC 530).

This standard was drafted. Water Transport Research Institute of Ministry of Transport, Wuhan University of Technology, Hunan China Railway Wuxin Heavy Industry Co., Ltd., Yichang City Weite Electronic Equipment Co., Ltd., Wuqiao Heavy Industry Group Co., Ltd., Taiyuan University of Science and Technology.

1 Scope

This standard specifies the basic parameters, technical requirements, test methods, inspection rules, as well as marking, packaging, transportation and Storage requirements.

This standard is applicable to the production, inspection and use of various gantry cranes for loading and unloading operations of port cargo, bulk cargo, and containers.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document.

GB 755 quota and performance of rotating electrical machines GB/T 985. 1 Recommended grooves for gas welding, electrode arc welding, gas shielded welding and high energy beam welding GB/T 985. 2 Recommended grooves for submerged arc welding GB/T 1184 Shape and position tolerances without tolerance values GB/T 1228 High Strength Large Hex Head Bolts for Steel Structures GB/T 1229 High Strength Large Hex Nuts for Steel Structures GB/T 1230 High-strength washer for steel structure GB/T 1231 Technical Specifications for High Strength Large Hex Head Bolts, Large Hex Nuts and Washers for Steel Structures GB/T 1413 Series 1 Container classification, size and rated quality GB/T 1801 Product Geometric Technical Specification (GPS) Limit and fit tolerance bands and fit selection GB/T 1804 Tolerances for linear and angular dimensions without general tolerances GB 2893 safety color GB 2894 safety signs and guidelines for their use GB/T 3220 container spreader GB/T 3323-2005 Radiographs of metal fusion welded joints GB/T 3766 General rules and safety requirements for hydraulic drive systems and their components GB/T 3811-2008 Design Code for Cranes GB/T 4026 Basic and safety rules for human-machine interface markings Identification of equipment terminals and conductor terminals GB/T 4208-2017 Housing Protection Level (IP Code) GB/T 4323 elastic sleeve pin coupling GB/T 4942. 1-2006 Degree of protection (IP code) for the overall structure of rotating electric machines GB/T 5117 Electrode for non-alloy steel and fine grain steel GB/T 5118 heat-resistant steel electrode GB/T 5226. 32-2017 Mechanical and electrical safety Machinery and electrical equipment Part 32. Technical requirements for lifting appliances GB/T 5293 Classification requirements for solid alloy wire, flux-cored wire, and welding wire flux for non-alloy steel and fine-grain steel for submerged arc welding GB/T 5905-2011 crane test specifications and procedures GB/T 5972 Crane wire rope maintenance,, inspection and scrap GB/T 5975 pressure plate for wire rope JT/T 1298-2019 GB 6067. 1-2010 Safety regulations for lifting appliances Part 1. General GB 7251. 1 Low-voltage complete switchgear and control equipment Part 1. General GB/T 7935 General specifications for hydraulic components GB/T 8110 Carbon steel and low alloy steel welding wire for gas shielded arc welding GB 8918 wire rope for important uses GB/T 8923. 1-2011 Visual assessment of surface cleanliness of steel surfaces before application of coatings-Part 1. Uncoated Rust level and treatment level on the steel surface and the steel surface after the original coating is completely removed GB/T 9286-1998 Crosshatch test for paints and varnishes GB/T 10051. 1 to 10051. 12 lifting hook GB/T 10095. 1-2008 Cylindrical gear precision system Part 1. Definition and allowable value of deviation of tooth surface on the same side of gear GB/T 10095. 2-2008 Cylindrical gear precision system Part 2. Definition and allowable value of radial comprehensive deviation and radial runout GB/T 12470 Classification requirements for the combination of solid steel wire, flux-cored wire, and flux-cored flux GB/T 13306 plate GB/T 13384 General technical requirements for packaging of mechanical and electrical products GB/T 1497 Wire for fusion welding GB/T 1798 Technical Performance and Acceptance Documents for Cranes and Lifting Machinery GB/T.2018 General Specifications for Wire Rope GB 20237 Safety requirements for lifting metallurgy and shielded motors GB/T 20303. 1 Crane cabs and control stations Part 1. General GB/T 20303. 4 Crane cabs Part 4. Jib cranes GB/T 2147 Requirements for measurement accuracy of parameters in crane and related equipment tests Technical specifications of GB/T 21971 YD series multi-speed three-phase asynchronous motors for lifting GB/T 2192. 1 Technical requirements for variable frequency and three-phase asynchronous motors for lifting and metallurgical applications Part 1. QP series lifting and metallurgy Frequency conversion speed regulating three-phase asynchronous motor for metal GB/T 2214 Measurement of crane speed and time parameters GB/T 22415 Requirements for crane test load GB/T 26101. 1 GIICL Drum Gear Coupling GB/T 26101. 3 CGLD Drum Gear Coupling GB/T 27456 Lifting pulley GB/T 2960-2013 portal crane GB 50171-2012 Electrical equipment installation engineering panel, cabinet and secondary circuit wiring construction and acceptance specifications Technical specifications of JB/T 5870 ZR series high-voltage winding rotor three-phase asynchronous motors for crane and metallurgical use (frame number 560 to 710) JB/T 5901 Cross pin universal joint JB/T 6392 Crane Wheel JB/T 6406 electro-hydraulic drum brake JB/T 7017 crane hydraulic buffer JB/T 7019 brake wheels and discs for industrial brakes JB/T 7020 electro-hydraulic disc brake Technical conditions of JB/T 7076 YES series three-phase asynchronous motor brake with two-speed tapered rotor brake JB/T 7077 ZRE series lifting and metallurgical electromagnetic brake winding rotor three-phase asynchronous motor technical conditions JB/T 7078 Technical specifications of ZRF, ZRG series forced ventilated wound rotor three-phase asynchronous motors for lifting and metallurgy JB/T 7685 electromagnetic drum brake Technical conditions of JB/T 7842 ZRZ series three-phase asynchronous motors JT/T 1298-2019 JB/T 8854. 2 GIICL type, GIICLY type drum gear coupling JB/T 8905 Three-pivot reducer for crane JB/T 1247 Crane base reducer JB/T 12478 Vertical reducer for crane JB/T 12479 Set gear reducer for crane JB/T 8955 ZR2 series crane and metallurgical winding rotor three-phase asynchronous motor technical specifications JB/T 9003 crane three-in-one reducer JB/T 9006 crane drum Technical conditions of JB/T 10104 Y series hoisting and metallurgical three-phase asynchronous motor JB/T 10105 ZR series lifting and metallurgical winding rotor three-phase asynchronous motor technical specifications JB/T 10559-2018 Nondestructive testing of crane machinery Ultrasonic testing of steel welds JB/T 10730 DC lifting solenoid JB/T 10816 Crane type hard tooth surface reducer for crane JB/T 10817 Three-point hardened gear reducer for crane JB/T 10833 Polyurethane buffer for crane JB/T 12987 crane spring buffer JB/T 12988 crane rubber buffer JGJ 82 Technical Specification for High Strength Bolt Connections of Steel Structures JT S 257 Quality Inspection Standard for Water Transport Engineering JT/T 846 Port crane slewing bearing

3 Terms and definitions

The following terms and definitions apply to this document.

Port gantry crane port pedestal crane the lower part is a platform that can run along the track, and a rotatable boom-type crane that cannot pass rail or road vehicles below the platform.

4 Basic parameters

4.1 According to Table A in GB/T 3811-2008. 3 and Table B. 3. Working level of port gantry crane (hereinafter referred to as "crane") See Table 1 for the working level with the agency.

Table 1 Crane working level and mechanism working level

No. Crane type Working conditions Machine working level Working level of each agency Hoisting luffing rotation

1 Hook cranes use A6 M6 M4 M5 M3 more frequently for medium loads

2 Hook cranes use A7 M7 M5 M6 M4 more frequently

3 Grab buckets, electromagnetic chucks and container cranes use A7 M7 M6 M6 M4 more frequently

4 Grab buckets, electromagnetic chucks, container cranes frequently use A8, M8, M7, M7, M4

4.2 See Table 2 for the basic parameter series of the crane.

JT/T 1298-2019

Table 2 Basic parameter series

No. Parameter Name Unit Parameter Series

1 Rated lifting capacity t 5,10,16,25,40,45,50,60

2 Working range m 12. 5,16,20,22,25,30 3 lifting height m 8,10,12,15,20 (4) Descent depth m 5 ~ 20

5 Lifting speed m/min 10 ~ 60

6 Luffing speed m/min 15 ~ 40

7 Rotation speed r/min 0. 5 to 2

8 Running speed m/min 15 to 25

9 Gauge m 6,7. 5,10. Five

5 Technical requirements

5.1 Machine requirements

5.1.1 The design, manufacture and installation of cranes shall comply with GB/T 3811 and GB 6067. 1 provisions.

5.1.2 When the crane is carrying out the rated load test, each mechanism shall work normally without abnormal noises, all components shall be intact and the connection shall be free of damage.

Loose, structural parts should be free of cracks, permanent deformation, surface paint wrinkles, welds should be free of cracks, electrical components should be intact and undamaged, and the entire machine action should meet Designed performance requirements.

5.1.3 The crane shall be capable of withstanding the static load test. 25 times the test load of rated lifting capacity. The institutions and structures in the test should be free of Cracks, permanent deformation, and wrinkling of paint. There should be no looseness at the joints. There should be no oil leakage at the joints and no abnormalities in the crane.

5.1.4 The crane shall be capable of withstanding the dynamic load test. Test load of 1 times the rated lifting capacity. Various institutions and structures should work during the test Normal and no abnormal sound; the strength of each mechanism and structure should meet the design requirements, no residual deformation and damage, and no looseness at the connection; fixed the joint surface should not leak oil, and the moving joint surface should not drip oil; electrical components should be intact.

5.1.5 The crane shall meet the requirements of GB/T 5905-2011 during the stability test. 3. 4 requirements.

5.2 Environmental conditions

5.2.1 The working environment temperature is -25 ° C to + 45 ° C.

5.2.2 The maximum relative humidity is not more than 95%.

5.2.3 Working wind speed does not exceed 20m/s. The maximum non-working wind speed is selected in accordance with the provisions of Table 18 in GB/T 3811-2008.

5.2.4 The crane running track shall meet the requirements of JT S 257.

5.2.5 The crane's power supply is three-phase AC, the frequency is 50Hz, and the voltage is not higher than 10kV. The power supply system at the crane feeder access the voltage fluctuation shall not exceed ± 10% of the rated voltage, and the internal voltage loss of the crane shall meet the requirements of GB/T 3811.

5.3 Allowances for main performance parameters

5.3.1 Lifting speed (full load stable speed) is ± 5% of the nominal value.

5.3.2 Luffing speed (average speed at full load) is ± 5% of the nominal value.

5.3.3 Rotation speed (full load stable speed) is ± 5% of the nominal value.

5.3.4 The running speed (no-load stable speed) is ± 10% of the nominal value.

JT/T 1298-2019

5.3.5 The lifting range (lifting height and descending depth) is 0 to 2% of the nominal value.

5.3.6 The maximum range is 0 to 1. 5%, the minimum range is the nominal value-1. 5% to 0.

5.4 Structure

5.4.1 Materials

5.4.1.1 The materials for manufacturing cranes shall comply with the provisions of GB/T 3811.

5.4.1.2 The materials for manufacturing cranes shall have a certificate of conformity from the material manufacturer. Samples of important components shall be tested and tested.

The chemical composition and mechanical properties should meet the requirements of the corresponding standards.

5.4.2 Welding

5.4.2.1 The weld bevel shall comply with GB/T 985. 1 and GB/T 985. 2 provisions. Special bevel form and size should be on the drawing Note.

5.4.2.2 All welds shall be free from leaks, burn-throughs, cracks, pores, unmelted, undercuts, slag inclusions, melting spots, pits, etc. that affect performance and appearance Defects in quality.

5.4.2.3 Non-destructive testing of important welds shall be carried out after visual inspection. The quality inspection of welds shall not be less than that specified in GB/T 3323-2005.

The quality level is II, and the ultrasonic flaw detection is not lower than the level 1 in JB/T 10559-2018.

5.4.2.4 Welding electrodes, wires and fluxes shall comply with GB/T 5117, GB/T 5118, GB/T 5293, GB/T 8110, GB/T According to the provisions of 12470 and GB/T 14957, the selection of electrodes and welding wires should be in accordance with the strength of the material of the main body and the type of load on the weld.

adapt.

5.4.2.5 For fillet welds where the height of the weld is not specified, the height of the weld shall not be less than 80% of the thickness of the thinner connector in the welded part.

5.4.3 High-strength bolt pair for connecting structural members

5.4.3.1 High-strength large hexagon bolts, large hexagon nuts, high-strength washers and technical requirements for connecting structural parts shall meet GB/T Provisions of 1228 to GB/T 1231.

5.4.3.2 High-strength bolted joints shall be implemented in accordance with the provisions of JGJ 82.

5.4.4 Bolt pair for hinge hole of connecting structure

5.4.4.1 The mechanical performance level of the bolt shall not be lower than 8. Grade 8, the mechanical performance grade of the nut should not be lower than Grade 8.

5.4.4.2 The fit of bolts and hinged holes should be H8/h8 in GB/T 1801.

5.4.5 Permissible deviation in manufacturing of structural parts

5.4.5.1 The shape and position deviation of the manufacturing of basic welded structural parts shall meet the requirements of Table 10 in GB/T 2960-2013.

5.4.5.2 The linear dimensional deviation of box beams, I-beams, cylinders and other various components after welding and forming should not be greater than the design or GB/T 1804 the value specified by the roughness level for general tolerances.

5.4.5.3 The verticality of the structural geometric axis of the platform to the horizontal plane should not be greater than h/1500; the contact table between the upper supporting flange and the large rotary bearing the flatness of the surface should be grade 9 in GB/T 1184, and the horizontal deflection should be controlled at a<=D/1 500, as shown in Figure 1.

5.4.5.4 The flatness of the plane on the turntable should be controlled within 4mm, and the flatness of the contact surface between the lower part of the turntable and the slewing bearing should not be greater than that of the swivel Support 1/2/500 nominal diameter.

5.4.5.5 After the production of the bench structure is completed, it should reach.

a) The deviation of the gauge distance of the outriggers is (-10 ~-5) mm;

b) The deviation of the diagonal length of the bottom of the leg of the pedestal is (-5 ~ + 5) mm;

c) The vertical height difference between the bottom planes of the legs of the bench shall not be greater than 3mm, and the horizontal deviation shall not be greater than 1/1000 of the measured length.

JT/T 1298-2019

Explanation.

D --- the outer diameter of the top surface slewing bearing connection flange on the cylinder;

a --- horizontal skew;

h --- the height difference between the top surface of the cylinder and the top surface of the bench beam.

Fig. 1 Verticality and horizontal deflection of the bench structure

5.4.6 Structural parts installation lifting points

5.4.6.1 The installation of lifting points shall ensure that the structural parts are not plastically deformed during the lifting process.

5.4.6.2 The shackles used with the mounting ears shall comply with the design requirements.

5.4.7 Structural parts waterproof requirements

5.4.7.1 Drainage measures for structural parts shall be effective, and there shall be no standing water on the outer surface.

5.4.7.2 There shall be no leakage or residual water in the structure.

5.5 institutions

5.5.1 Lifting mechanism

5.5.1.1 The brake shall be normally closed. In the case of power failure or power failure, the brake shall be able to effectively brake and support the load.

Any delayed braking of the braking system shall ensure that the load can be safely braked.

5.5.1.2 After the rated load is stopped in the air, when the lifting mechanism is restarted, the load shall not momentarily slide down.

5.5.1.3 When installing the reels with left and right rotation directions, they shall meet the design requirements of the corresponding wire rope exit directions.

5.5.1.4 See Figure 2 for the allowable deviation between the actual centerline of the reducer after the hoisting mechanism is installed and the base line of the machine base.

Explanation.

T --- theoretical centerline;

R --- the actual centerline.

Figure 2 Allowable deviation between the actual centerline and the theoretical centerline of the reducer

JT/T 1298-2019

5.5.1.5 For rolls using a three-pivot type lifting mechanism, the allowable deviation of the actual centerline position after installation is shown in Figure 3.

Explanation.

T --- theoretical centerline;

R --- the actual center line;

| D | + | E | --- The centerline is horizontally skewed.

Figure 3 Allowable deviation of the actual centerline position of the drum of the three-pivot type lifting mechanism

5.5.2 Luffing mechanism 5. 5. 2. 1. The meshing backlash of the rack and pinion of the rack luffing drive should be 0. 3mm ~ 0. 7mm, there should be no gear during meshing work Bite phenomenon.

5.5.2.2 The screw and screw helix of the screw luffing drive device shall be marked with a pair when installing, and the keyway shall be milled according to the positioning mark;

The torque applied to the positioning nut of the housing rolling bearing should meet the design requirements; the contact area of the screw and nut after running in should not be less than 75% the expansion sleeve should ensure flexibility and no oil leakage.

5.5.2.3 The wire rope luffing drive shall comply with 5. 5. 1. 3 to 5. 5. 1. 5 provisions.

5.5.2.4 The allowable deviation of the position of the hydraulic cylinder of the hydraulic luffing drive device to the centerline of the boom should not be greater than 10mm.

5.5.3 Slewing mechanism

5.5.3.1 Slewing bearings shall comply with the provisions of JT/T 846.

5.5.3.2 Slewing bearings shall be of the rolling bearing type.

5.5.3.3 The structural strength, stiffness, levelness and flatness of the slewing bearing shall meet the support requirements of the slewing bearing. Bearing of slewing bearing the capacity should meet the load requirements of the crane.

5.5.3.4 The slewing bearing should run smoothly and without abnormal noise. The meshing backlash between the large ring gear and the driving pinion should be 0. 8mm ~ 1. 2mm.

5. 5. 3. 5. The selection of the safety factor of the brake of the turning mechanism shall be in accordance with GB/T 3811-2008 6. 1. 3. 5 provisions. Operating brake the pedaling force should not be greater than.200N.

5.5.4 Operating mechanism

5.5.4.1 The deviation of the center of the two wheel treads on the same frame from the centerline of the frame should not be greater than 1mm, see Figure 4.

Figure 4 The deviation of the center of the wheel tread from the centerline of the frame

5.5.4.2 The wheel alignment deviation delta (figure 5) should not be greater than that specified in Table 3.

JT/T 1298-2019

Explanation.

1 --- walking frame 1;

2 --- walking frame 2;

3 --- walking frame 3.

Figure 5 Schematic representation of the wheel's isobaric deviation

Table 3 The allowable value of the wheel's isobaric deviation delta is mm

Two wheels delta1 adjacent to each other with different frame misalignment delta1 Three wheels adjacent to two delta2 delta <=2 <=3 <=5

5.5.4.3 After the installation of the whole machine is completed, the span deviation of the uppermost balancing beam of the running mechanism in the gauge direction is ± 5mm.

5.6 main parts

5.6.1 wire rope

5.6.1.1 The steel wire rope shall comply with the requirements of GB/T.2018, and the wire-contact steel wire rope is preferred. For multi-layer winding, GB 8918 wire rope.

5.6.1.2 The safety factor of steel wire rope shall meet the requirements of Table 44 in GB/T 3811-2008.

5.6.1.3 The fixing and connection of the rope end of the wire rope shall be firm, reliable, convenient for maintenance, and shall conform to GB 6067. 1-2010 4. 2. 1. 5 of Regulations.

5.6.1.4 The fixing of the rope end on the reel shall comply with GB/T 3811-2008 6. 3. 3. 4 and GB/T 5975 regulations. steel when the wire rope is fixed on the reel with a pressure plate, there should not be less than 3 pressure plates at each end; when using a long strip, the length of a single pressure plate should not be less than 6 Wire rope diameter; when fixed with wedges, the steel wire rope should be close to the arc segment of the wedge and wedged tightly.

5.6.1.5 The maintenance,, installation, inspection and scrap of steel wire ropes shall comply with the provisions of GB/T 5972.

5.6.2 Hooks and other picking devices

5.6.2.1 Forged hooks shall comply with GB/T 10051. 1 to GB/T 10051. 12 and GB 6067. 1 provisions.

5.6.2.2 The hook shall be provided with a device to prevent the wire rope from becoming unhooked; the design of the hook group shall prevent the hook from occurring during the loading and unloading operation of the crane the problem.

5.6.2.3 When the grab is used to grab powder, sand and grain materials, the gap at the mouth of the bucket should not be greater than 2mm, unless there is a special Art guarantees that the bucket mouth will not leak material.

5.6.2.4 The electromagnetic chuck should preferably use a DC lifting electromagnet that complies with the provisions of JB/T 10730.

5.6.2.5 The container spreader shall be capable of loading and unloading the container specified in GB/T 1413, and the position dimensions and tolerances of its turn locks shall conform to GB/T 3220 provisions.

5.6.3 Pulleys and reels the pulley shall meet the requirements of GB/T 275646. The reel shall comply with the provisions of JB/T 9006.

5.6.4 electric motor

5.6.4.1 Preferential use of motors that meet the following standards. JB/T 5870, JB/T 7076, JB/T 7077, JB/T 7078, JB/T 7842, JT/T 1298-2019 JB/T 8955, JB/T 10104, JB/T 10105. If necessary, you can also choose to comply with GB/T 2192. 1 inverter motor or GB/T 2971 multi-speed motor.

5.6.4.2 The drive motor of each mechanism shall meet the technical requirements of GB 755 and the relevant standards of special motors.

5.6.4.3 The capacity verification of the motor shall comply with the provisions of GB/T 3811, and shall ensure that the starting, Speed up and run.

5.6.4.4 The safety performance of the motor should meet the requirements of GB 20237.

5.6.4.5 Motor housing protection includes preventing the human body from touching the motor body or rotating parts inside it, preventing external solid foreign matter or liquid from entering.

Into its interior. The enclosure protection level is.

a) Indoor AC and DC motors. drip-proof, protection level should not be lower than GB/T 4942. 1-2006 in IP23;

b) Outdoor AC and DC motors. fully enclosed, the protection level should not be lower than GB/T 4942. 1-2006 in IP54.

5.6.5 Reducer and gear transmission

5.6.5.1 Gearheads th...