JB/T 5319.2-1991 Safety specification for rail-mounted stacking cranes
Some standard content:
Machinery Industry Standard of the People's Republic of China
JB5319.2-91
Railway stacking crane
Published on July 3, 1991
Safety specification of the Ministry of Machinery and Electronics Industry of the People's Republic of China
Implemented on July 1, 1992
Mechanical Industry Standard of the People's Republic of China
Railway stacking crane
Safety specification
1 Subject content and scope of application
This standard specifies the safety requirements for the design, manufacture and use of railway stacking cranes. This standard applies to railway stacking cranes (hereinafter referred to as stackers) in high-rise shelf warehouses. 2 Reference standards
GB1102
GB2682
GB3323
GB3811
GB4205
GB5117
GB5118
GB5972
GB8110
GBJ232
3 General requirements
Basic forms and dimensions of weld grooves for gas welding, manual arc welding and gas shielded welding Basic forms and dimensions of weld grooves for submerged arc welding Round strand wire rope
Color of indicator lights and buttons in electrical complete sets Radiography and quality classification of steel fusion welded butt joints Crane design specifications
Standard movement direction of operating parts for controlling electrical equipment Carbon steel welding rod
Low alloy steel welding rod
Practical specifications for inspection and scrapping of steel wire ropes for lifting machinery Steel welding wire for carbon dioxide gas shielded welding
Construction and acceptance specifications for electrical installation projects 3.1 The strength, rigidity, stability, etc. of stackers and their parts and components shall meet the requirements of GB3811. 3.2 Requirements for welding of structural parts
JB5319.2—91
3.2.1 The quality of butt welds of main load-bearing components, such as lower beams, columns, upper cross dyeing, cargo platforms, cargo forks, etc., shall not be lower than the requirements of Grade I welds in GB3323.
3.2.2 Welding rods, welding wires and fluxes shall be compatible with the materials of the welded parts and shall comply with the provisions of GB5117, GB5118 and GB8110. 3.2.3 Welding keys shall comply with the provisions of GB985 and GB986. 3.2.4 Welding work must be performed by welders who have passed the training examination. The welder and inspector code must be stamped near the welds of the main load-bearing components.
3.3 Removable connecting parts should be prevented from loosening by themselves. 3.4 Anti-rust measures should be taken for the metal structure and parts and components of the stacker. 3.5 The installation of electrical equipment of the stacker must comply with the relevant provisions of GBJ232. 4 Structural design safety requirements
When designing a stacker, it should be considered that the stacker will not overturn when hit, and the stacker should be prevented from derailing. 4.1
4.2 Design requirements for the driver's cab
Approved by the Ministry of Machinery and Electronics Industry on July 3, 1991 and implemented on July 1, 1992
JB5319.2-91
4.2.1 The driver's cab should have a good field of vision, be able to observe the entire process of goods entering and leaving the warehouse, and be easy to operate and maintain. 4.2.2 The glass installed in the driver's cab should be safety shockproof glass and have good transparency. 4.2.3 The floor of the driver's cab should be non-slip.
4.2.4 The headroom height of the driver's cab should be no less than 1800mm, and the width of the door should be no less than 500mm. 4.2.5 The door of the driver's cab must be equipped with a lock or latch. 4.2.6 For stackers with a lifting height of more than 5m, a device must be installed to allow the driver to safely leave the driver's cab, such as a ladder, emergency exit, etc.
4.2.7 The driver's cab shall not be made of flammable materials. 4.2.8 The lighting in the driver's cab must enable the driver to complete the normal operation of the control panel and observe the entire process of the stacker entering and leaving the warehouse. Emergency lighting should be installed in the driver's cab.
4.2.9 The driver's cab should be equipped with an emergency stop button and a fire extinguisher. 4.3 Control panel
4.3.1 The control panel should be equipped with an electric lock. The key must be inserted into the lock before the power can be turned on. Removing the key is the power-off state. 4.3.2 The configuration of each operating switch should be easy to operate and prevent the occurrence of false operations. There should be obvious water-resistant marks on the switch. The direction of the switch or handle movement should comply with the provisions of GB4205. 4.3.3 Protective facilities must be installed above and around the control panel without a driver's cab. 4.4 Brake
4.4.1 The lifting mechanism, running mechanism and fork retraction mechanism of the stacker must be equipped with brakes. The brakes of each mechanism must be normally closed, adjustable and able to brake reliably under any circumstances. 4.4.2 Safety factor of the lifting mechanism brake Where: M-brake torque, N·m; K
M static torque on the brake shaft when fully loaded, N·m; K——-brake safety factor determined according to the situation of the stacker with or without a driver's cab. The brake safety factor is selected according to the following situations: Island, lifting mechanism without lifting driver's cab
b. Lifting mechanism with lifting driver's cab
4.5 Load-bearing wire rope
4.5.1 The wire rope selected for the lifting mechanism shall comply with the provisions of GB1102 and must have a product inspection certificate. 4.5.2 Safety factor of wire rope
Where: Sp——Breaking tension of load-bearing wire rope, kN; Smax—Maximum static tension of load-bearing wire rope during operation, kN; The safety factor of load-bearing wire rope is determined according to whether the stacker has a driver's cab or not. The strength safety factor of the load-bearing wire rope is selected according to the following conditions: a. The strength safety factor of the wire rope without a lifting driver's cab shall not be less than 6; b. The strength safety factor of the wire rope with a lifting driver's cab shall not be less than 9. 4.5.3 The strength standard of the load-bearing wire rope shall be in accordance with the provisions of GB5972. 4.6 Safety requirements for electrical equipment
4.6.1 A power switch shall be installed on the stacker. 2
(2)
JB5319.2—91
4.6.2 Power lines and control lines shall not be exposed. When the power line and control line of the stacker are swinging, they should not exceed the wheel screen line of the stacker in the width direction of the lane, and mechanical friction with other metal objects should not be generated during movement. 4.6.3 The selected electrical equipment and devices should have a certificate of conformity. And they must meet the design performance requirements, use environment and working conditions. 4.6.4 Grounding
The metal structure of the stacker and the metal casing and pipe trough of all electrical equipment should be reliably grounded. Good grounding should be maintained during maintenance.
b. The running track and running guide rail of the stacker must be grounded. The grounding wire should be made of fan steel (round steel) with a cross-section of not less than 150mm or 10mm\ copper wire.
The grounding resistance of the moving track and running guide rail of the stacker and the grounding resistance of any point on the metal structure of the stacker shall not be greater than 452.
5 Requirements for protective devices
5.1 Speed-limiting anti-fall device
The stacker shall be equipped with an overspeed protection device, a catcher or a rope-breaking protection device. When the lifting height of the cab of a single-column stacker exceeds 3m, an overspeed protection device and a catcher must be installed. 5.1.1 Overspeed protection device and catcher
The overspeed protection device and the catcher shall not rely on the control of other power, various mechanisms and electrical systems, and shall be able to operate independently and reliably. 5.1.1.1 The braking force generated by the catcher shall not be less than 1.25 times the total load of the braked part. 5.1.1.2 When the descending speed of the lifting cab exceeds 40% of the rated lifting speed, the overspeed protection device and the catcher shall be immediately activated. 5.1.1.3 When a wire rope is used as the traction part of the overspeed protection device, its diameter shall not be less than 6mm. 5.1.1.4 The fixing of the traction wire rope of the overspeed protection device shall be safe and reliable. 5.1.1.5 When the tension of the traction wire rope of the overspeed protection device weakens, the power supply of the hoisting motor should be automatically cut off. 5.1.1.6 The overspeed protection device should be equipped with speed adjustment means and sealed after the test. 5.1.2 Rope breaking protection device
When the load-bearing wire rope breaks, the rope breaking protection device should be able to operate reliably. The braking force generated by the rope breaking protection device should not be less than 1.25 times the total load of the braked part.
5.2 Over-hub protection device
5.2.1 Requirements for mechanical overload protection devices: The action load should not be greater than 1.25 times the rated load; b.
When the action load is reached, the power supply of the hoisting motor should be automatically cut off. 5.2.2 Requirements for electronic overload protection devices: The action load with delay should not be greater than 1.10 times the rated load; a.
When the action load is reached, the power supply of the hoisting motor should be automatically cut off. b.
5.3 Loose rope protection device
The stacker should be equipped with a device that can automatically cut off the power supply of the lifting motor when the tension of the load-bearing wire rope is weakened. 5.4 Safety protection of fork extension mechanism
The fork extension mechanism should be able to prevent damage to the mechanism when the fork extension is blocked. 5.5 Upper limit limiter (lifting height limiter), lower limit limiter (descent limit limiter) and lifting emergency terminal limiter 5.5.1 The stacker should be equipped with a protective device to prevent the cargo platform from exceeding the upper and lower limit positions. When the cargo platform approaches the upper limit or lower limit position, the device should be able to automatically cut off the power supply of the lifting motor. 5.5.2 The upper limit limiter should be installed in a position that the upper limit limiter should not operate when the cargo platform is in the highest normal working position. The lower limit limiter is in a safe position. When the cargo platform with a rated load descends, the lower limit limiter should not fall on the lower beam after being activated.
5.5.3 The lifting emergency terminal limiter, which is above the upper limit limiter, should be able to cut off the main power supply of the stacker. After the device stops the cargo platform for 3
JB5319.2—91
, the distance between the upper edge of the protruding part of the cargo platform and the lower edge of the protruding part of the lower part of the upper beam should be greater than 50mm. 5.6 Operation terminal speed limiter (forced pursuit speed change switch) When the stacker approaches the operation terminal limiter, it should be able to automatically switch to low speed. 5.7 Operation terminal limiter
The operation terminal limiter includes vehicle stopper, operation terminal limit switch and other forms of terminal limiter. 5.7.1 The horizontal force acting on an operation terminal limiter (such as a vehicle stopper) along the running direction of the stacker should be calculated according to the condition that the stacker collides at the rated speed.
5.7.2 When the operation terminal limit switch is activated, the minimum distance between the stacker's lower beam buffer and the vehicle stopper should be greater than the braking distance of the stacker's rated operating speed.
5.8 Fork telescopic travel limiter
When the fork is extended to the maximum travel or reset to the center, the limiter should be able to act automatically. 5.9 Fork overtravel stopper (fork overtravel block) The stacker should be equipped with an overtravel stopper to prevent the telescopic fork from escaping from the fixed fork. 5.10 Emergency stop button
The stacker must be equipped with an emergency stop button, which should be able to cut off the main power supply of the stacker in an emergency. The color of the emergency stop button should comply with the provisions of GB2682.
5.11 Electrical interlock protection
5.11.1 When the door of the operator's cab on the stacker is not closed, the power supply of the stacker should not be turned on. 5.11.2 Stackers operated from multiple locations should be interlocked to ensure that the stacker can only be operated from one location at a time. 5.11.3 Each control mode should be interlocked to ensure that only one control mode among manual, semi-automatic and automatic control is allowed at a certain time.
When the fork leaves the original position, the stacker is not allowed to run and high-speed lifting. 5.11.5 The control circuit should also have the following conventional interlocks and protections: undervoltage protection, zero position protection of the operating switch, forward and reverse interlocking of the motor, interlocking of different speed levels, short circuit and overcurrent protection. 5.12 Sound alarm device
The stacker must be equipped with a sound alarm device. Before the operating mechanism is started, an audible signal should be issued first. 5.13 Cargo position abnormality detection device
Automatic stackers should be equipped with devices to detect whether the cargo protrudes from the loading platform or the cargo stack collapses. 5.14 Cargo position detector
Automatic stackers should be equipped with detection devices to detect whether there are goods at the destination address before the fork is extended and ready to store goods in the cargo position or unload goods to the in-and-out platform.
5.15 Buffers
5.15.1 The buffers at both ends of the lower crossbeam of the stacker should have good performance in absorbing kinetic energy and reducing impact. The collision load acting on the buffer shall be calculated according to the actual collision speed after deceleration, but shall not be less than 50% of the rated operating speed. 5.15.2 Buffers shall be installed between the cargo platform and the lower crossbeam, and between the driver's cab and the cargo platform and the lower crossbeam with relative movement. 5.16 Clamps
The stacker shall be equipped with clamps to prevent the stacker from tipping over and the wheels from derailing. 5.17 Track cleaners
A track cleaner shall be installed in front of the stacker wheels. The distance between the track cleaner and the rail surface shall not be greater than 10mm. 6 Usage requirements
6.1 Requirements for the user
6.1.1 The user shall establish necessary rules and regulations according to the type and complexity of the stacker used, the manual and the specific conditions of use.
JB5319.2—91
6.1.2 Equipment files must be established for the stackers of the unit. 6.2 Requirements for drivers
6.2.1 The stacker driver must be trained and pass the examination of the safety and technical department. 6.2.2
The driver should be familiar with the structure and technical performance of the various mechanisms of the stacker he operates, the stacker operating procedures, this specification and relevant laws and regulations. Additional notes:
This standard was proposed and managed by the Beijing Hoisting and Conveying Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Beijing Hoisting and Conveying Machinery Research Institute. The main drafter of this standard is Liu Zhimin.
People's Republic of China
Mechanical Industry Standard
Railway Stacking Crane
Safety Specification
JB5319.291
Published and distributed by the Machinery Standardization Research Institute of the Ministry of Machinery and Electronics Industry (PO Box 8144, Beijing
Copyright reserved
Postal Code 100081)
Not subject to expiration
Printed in Qinghe County, Hebei Province
Format 880×1230
First edition in December 1991
Sheet 5/8bZxz.net
Word count 10000
First printing in December 1991
Print count 00.0011000
Price 1.00 Yuan
No. 037514 Cargo position detector
Automatically controlled stackers should be equipped with detection devices to detect whether there are cargoes at the destination address before the forks are extended and ready to store cargoes at the cargo position or unload cargoes at the entry and exit platform.
5.15 Buffer
5.15.1 The buffers at both ends of the lower beam of the stacker should have good performance in absorbing kinetic energy and reducing impact. The collision load acting on the buffer is calculated according to the actual collision speed after deceleration, but should not be less than 50% of the rated operating speed. 5.15.2 Buffers should be installed between the cargo platform and the lower beam, and between the driver's cab and the cargo platform and the lower beam with relative movement. 5.16 Clamp
Stackers should be equipped with clamp hooks to prevent the stacker from tipping over and the wheels from derailing. 5.17 Track cleaner
A track cleaner should be installed in front of the wheels of the stacker. The distance between the track cleaner and the track surface should not be greater than 10mm. 6 Requirements for use
6.1 Requirements for the user
6.1.1 The user shall establish necessary rules and regulations according to the type and complexity of the stacker used, the instructions and the specific conditions of use.
JB5319.2—91
6.1.2 Equipment files must be established for the stackers of the unit. 6.2 Requirements for drivers
6.2.1 The driver of the stacker must be trained and pass the examination of the safety and technology department. 6.2.2
The driver should be familiar with the structure and technical performance of the various mechanisms of the stacker he operates, the stacker operating procedures, this specification and relevant laws and regulations. Additional notes:
This standard was proposed and managed by the Beijing Hoisting and Conveying Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Beijing Hoisting and Conveying Machinery Research Institute. The main drafter of this standard is Liu Zhimin.
People's Republic of China
Mechanical Industry Standard
Railway Stacking Crane
Safety Specification
JB5319.291
Published and distributed by the Machinery Standardization Research Institute of the Ministry of Machinery and Electronics Industry (PO Box 8144, Beijing
Copyright reserved
Postal Code 100081)
Not subject to expiration
Printed in Qinghe County, Hebei Province
Format 880×1230
First edition in December 1991
Sheet 5/8
Word count 10000
First printing in December 1991
Print count 00.0011000
Price 1.00 Yuan
No. 037514 Cargo position detector
Automatically controlled stackers should be equipped with detection devices to detect whether there are cargoes at the destination address before the forks are extended and ready to store cargoes at the cargo position or unload cargoes at the entry and exit platform.
5.15 Buffer
5.15.1 The buffers at both ends of the lower beam of the stacker should have good performance in absorbing kinetic energy and reducing impact. The collision load acting on the buffer is calculated according to the actual collision speed after deceleration, but should not be less than 50% of the rated operating speed. 5.15.2 Buffers should be installed between the cargo platform and the lower beam, and between the driver's cab and the cargo platform and the lower beam with relative movement. 5.16 Clamp
Stackers should be equipped with clamp hooks to prevent the stacker from tipping over and the wheels from derailing. 5.17 Track cleaner
A track cleaner should be installed in front of the wheels of the stacker. The distance between the track cleaner and the track surface should not be greater than 10mm. 6 Requirements for use
6.1 Requirements for the user
6.1.1 The user shall establish necessary rules and regulations according to the type and complexity of the stacker used, the instructions and the specific conditions of use.
JB5319.2—91
6.1.2 Equipment files must be established for the stackers of the unit. 6.2 Requirements for drivers
6.2.1 The driver of the stacker must be trained and pass the examination of the safety and technology department. 6.2.2
The driver should be familiar with the structure and technical performance of the various mechanisms of the stacker he operates, the stacker operating procedures, this specification and relevant laws and regulations. Additional notes:
This standard was proposed and managed by the Beijing Hoisting and Conveying Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Beijing Hoisting and Conveying Machinery Research Institute. The main drafter of this standard is Liu Zhimin.
People's Republic of China
Mechanical Industry Standard
Railway Stacking Crane
Safety Specification
JB5319.291
Published and distributed by the Machinery Standardization Research Institute of the Ministry of Machinery and Electronics Industry (PO Box 8144, Beijing
Copyright reserved
Postal Code 100081)
Not subject to expiration
Printed in Qinghe County, Hebei Province
Format 880×1230
First edition in December 1991
Sheet 5/8
Word count 10000
First printing in December 1991
Print count 00.0011000
Price 1.00 Yuan
No. 0375
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