CN114212676A - Special crane for upper rotation energy feedback intelligent container - Google Patents
Special crane for upper rotation energy feedback intelligent container Download PDFInfo
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- CN114212676A CN114212676A CN202111505142.XA CN202111505142A CN114212676A CN 114212676 A CN114212676 A CN 114212676A CN 202111505142 A CN202111505142 A CN 202111505142A CN 114212676 A CN114212676 A CN 114212676A
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- energy feedback
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- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 53
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- 238000004873 anchoring Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
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- 230000009471 action Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 9
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/10—Undercarriages or bogies, e.g. end carriages, end bogies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
Abstract
The invention relates to the technical field of container crane equipment, in particular to an upper rotating energy feedback intelligent container special crane which comprises an electric control system and a traveling mechanism, wherein the traveling mechanism comprises a first portal frame and a second portal frame which are symmetrically arranged, a traveling crane assembly is arranged between the first portal frame and the second portal frame in a sliding manner, the traveling crane assembly comprises a traveling crane frame, a traveling crane swing mechanism arranged on the traveling crane frame and a lifting appliance assembly arranged on the traveling crane swing mechanism, and the traveling crane assembly is controlled by the electric control system to rotate or move between the first portal frame and the second portal frame after lifting a container. The invention has high reliability, stable and safe operation and can realize energy feedback without electric pollution.
Description
Technical Field
The invention relates to the technical field of container crane equipment, in particular to a special crane for an intelligent container with upper rotation energy feedback.
Background
Container cranes consist of a support frame that can be moved on railroad tracks across the length of a dock or yard. They are equipped with special handling tools called spreaders which can be lowered to the top of the container and locked on four locking points ("corner castings") of the container using twist lock mechanisms. The crane usually transports one container at a time, which is the main handling equipment, and how to improve the operation efficiency of the crane today when the container transportation industry is developed at a high speed is an important problem needing to be researched in the field of container cranes.
The prior art has the following problems: firstly, in the conventional wire rope winding manner for the main lifting of cranes such as a rubber-tyred container gantry crane (RTG) or a rail-mounted container gantry crane (RMG), a mechanical or hydraulic anti-swing system must be additionally arranged in the running direction of a longitudinal trolley or a transverse trolley of the crane because the special spreader for containers and the containers cannot be restrained from swinging in the two directions, but the system has a complex structure, a high failure rate and an unsatisfactory anti-swing effect. The driver needs to spend a lot of time when operating the container, thus resulting in the reduction of the whole loading and unloading efficiency, and the swing and the oscillation can directly influence the container alignment time and the comfort and the safety of the operation in the loading and unloading process; secondly, with the higher and higher requirements of the efficiency of the bridge, various measures for improving the efficiency are more and more, and because the lifting appliance and the container are connected with the trolley through the flexible steel wire rope system, the inertia lifting appliance can generate certain shaking every time when the large and small trolleys stop running, if the shaking amount is large, great inconvenience is brought to the operation of the container, and the operation efficiency is seriously influenced; thirdly, the upper rotary crane mainly undertakes hoisting, due to the requirements of offline, blank stack placing and shipping, a crown block of the upper rotary crane needs to hoist a casting blank and then rotates 180 degrees for hoisting operation, due to the fact that a pulley runs on a rotary I-shaped rail and is blocked or out of a groove, or a climbing wheel fails, a cable can often fall off or break, great potential safety hazards are caused to the safe and smooth running of the upper rotary trolley, and the original climbing trolley, the I-shaped rail, a traction rope and other components need great efforts, so that the rotary mechanism of the bridge crane cannot normally run, and the operation efficiency is restricted to a great extent; fourth, as container cranes continue to grow in size, accurate positioning of containers and targets becomes increasingly difficult, and when fully automated systems are deployed to place or pick containers, it is most important that the positioning of loads and targets be accurate, as any error can cause the container to damage the vehicle, and even the driver in the cab; fifthly, along with the development of intelligent railway transportation and internet of things information technology, in a crane variable frequency speed control system consisting of a frequency converter, a motor and a mechanical load, when the motor is decelerated or a dragged potential energy load is released, the rotating speed of the motor is larger than different rotating speeds of the motor, and the motor is in a regenerative power generation braking state. How to recycle the energy is the key point of the current research and is also the energy conservation and emission reduction plan of the railway transportation department. The method solves the load operation characteristics of the hoisting mechanism of the hoisting machinery and an energy consumption utilization model of the motor in the load operation process, and is the key point for realizing energy recycling and energy-saving control, thereby realizing the monitoring and management of energy utilization and achieving the purposes of energy conservation and environmental protection.
Disclosure of Invention
Aiming at the problems, the invention provides the crane special for the intelligent container with the upper rotating energy feedback, which effectively solves the problems in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows: go up rotatory energy repayment intelligence container special crane, including electric control system and running gear, running gear includes first portal frame and the second portal frame that the symmetry set up, it is equipped with the driving assembly to slide between first portal frame and the second portal frame, the driving assembly includes the driving frame, sets up driving rotation mechanism on the driving frame is in with the setting the last hoist assembly of driving rotation mechanism, it is right through electric control system the driving assembly controls, makes the hoist assembly hang after the container be in rotate or remove between first portal frame and the second portal frame.
And as optimization, four ends of the travelling crane frame are respectively provided with a travelling crane running mechanism, each travelling crane running mechanism comprises a horizontal wheel and a motor for driving the horizontal wheel, and the first portal frame and the second portal frame are respectively provided with a sliding chute matched with the horizontal wheel.
Preferably, the traveling crane slewing mechanism comprises a circular slewing track and a slewing traveling crane frame, slewing wheels are arranged at four corners of the slewing traveling crane frame, horizontal guide wheels perpendicular to the slewing traveling crane frame are arranged at positions close to the slewing wheels, the slewing wheels slide in the slewing track, and the outer edges of the horizontal guide wheels are tangent to the inner wall of the slewing track, so that the slewing traveling crane frame rotates along the slewing track under the action of the slewing wheels, and the slewing wheels are prevented from derailing.
Preferably, motors for driving the rotary wheels are arranged on the four groups of rotary wheels, a photoelectric sensor and an encoder are arranged on any one group of rotary wheels, and a supporting seat is arranged between the horizontal guide wheel and the rotary frame.
The lifting appliance assembly is installed on the rotary traveling crane frame, the lifting appliance assembly comprises a steel wire rope reel, a first pulley block and a second pulley block, the first pulley block and the second pulley block are arranged on two sides of the steel wire rope reel, a rotating shaft is arranged in the steel wire rope reel, two ends of the rotating shaft are connected with a motor through a speed reducer, a steel wire rope group is wound on the steel wire rope reel, and the steel wire rope group penetrates through the first pulley block and the second pulley block to be connected with a lifting appliance.
As optimization, four sides of the lifting appliance are respectively provided with a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate; the steel wire rope group comprises a first steel wire rope, a second steel wire rope, a third steel wire rope and a fourth steel wire rope which turn towards the first pulley block, and a fifth steel wire rope, a sixth steel wire rope, a seventh steel wire rope and an eighth steel wire rope which turn towards the second pulley block.
And as optimization, the power control system comprises an energy feedback unit, a power distribution system, a PLC control system, a variable-frequency dragging system, a linkage table operating system, a touch screen monitoring system, a communication command system and a safety and state monitoring system.
As an optimization, the first pulley block comprises a first pulley frame, a first pulley, a second pulley, a third pulley, a fourth pulley, a fifth pulley and a sixth pulley are sequentially arranged on the first pulley frame along the length direction of the steel wire rope winding drum, the second pulley block comprises a second pulley frame, a seventh pulley, an eighth pulley, a ninth pulley, a tenth pulley, an eleventh pulley and a twelfth pulley are sequentially arranged on the second pulley frame along the length direction of the steel wire rope reel, the central axes of the second pulley, the fourth pulley, the ninth pulley and the eleventh pulley are all parallel to the central axis of the steel wire rope drum, the pulley end surfaces of the first pulley, the sixth pulley, the seventh pulley and the twelfth pulley are all vertical to the radial section of the steel wire rope winding drum, the pulley end faces of the third pulley, the fifth pulley, the eighth pulley and the tenth pulley are all parallel to the top face of the lifting appliance.
Preferably, the energy feedback unit comprises an energy feedback device, and the energy feedback device is mounted on the lifting appliance assembly.
Preferably, the first portal frame and the second portal frame both comprise a beam, one end of the beam is provided with a flexible supporting leg, the other end of the beam is provided with a rigid supporting leg with a climbing ladder, the bottom ends of the flexible supporting leg and the rigid supporting leg are respectively provided with a walking part, an anchoring device is arranged between the two opposite walking parts, the flexible supporting leg comprises an upper supporting leg and a lower supporting leg, the upper supporting leg and the lower supporting leg are connected through a pin shaft, and the gap between the upper supporting leg and the lower supporting leg is 4-5 mm.
And as optimization, an access door crane is arranged between the first portal frame and the second portal frame, and a wind measuring and lightning protection device is arranged on the access door crane.
The invention has the beneficial effects that: the crane special for the upper rotating energy feedback intelligent container provided by the invention has high reliability, stable and safe operation and can realize no electric pollution energy feedback:
1. driving rotation mechanism: the arrangement of the horizontal guide wheels plays a role in supporting a travelling crane slewing mechanism, so that the stability of a slewing travelling crane frame is improved, and the phenomenon that a slewing wheel is out of a groove on a circular slewing track is avoided; secondly, the crane slewing mechanism enables the crane to rotate at-10 to +280 degrees, thereby facilitating the box alignment and meeting the loading and unloading requirements; and the four rotary wheels are provided with four driving mechanisms, and the four-wheel driving running mechanism ensures reliable quality and stable use by adopting a four-wheel full-driving mode.
2. The lifting appliance assembly: by utilizing the geometric principle of stable triangle, the first pulley block, the second pulley block and the wire rope group are arranged, so that the hanger is in a double-line pendulum structure form in each individual aspect, and the horizontal component force of the first pulley block, the second pulley block and the wire rope group prevents the hanger from swinging in the directions of a cart and a trolley, namely, the rigidity of a suspension system is improved.
3. The power control system: the intelligent fault diagnosis system comprises state monitoring, communication command, fault diagnosis, fault alarm and preventive maintenance of each mechanism, has a data printing function, greatly improves the reliability of the system, and provides a large amount of original diagnosis data for intelligent fault diagnosis of the system.
4. An energy feedback unit: by arranging the energy feedback device, the electric energy generated by the lifting appliance assembly descending is converted into the energy with the same frequency and voltage as the power grid and low harmonic through three-phase inversion, so that the direct-current bus voltage of the frequency converter is not increased to the overvoltage protection point of the frequency converter, and the normal operation and work of the system can be ensured; meanwhile, the electric energy can be fed back, and energy conservation and environmental protection are realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic structural view of a traveling crane assembly according to the present invention;
FIG. 4 is a schematic structural view of a traveling crane frame according to the present invention;
FIG. 5 is a schematic view of a spreader assembly of the present invention;
fig. 6 is a schematic diagram of the wire rope winding of the spreader assembly of the present invention.
Wherein: 1. a first portal frame, 2, a second portal frame, 3, a traveling assembly, 4, a traveling frame, 5, a traveling swing mechanism, 6, a sling assembly, 7, a traveling running mechanism, 8, a swing track, 9, a swing traveling frame, 10, a swing wheel, 11, a horizontal guide wheel, 12, a support seat, 13, a wire rope reel, 14, a speed reducer, 15, a motor, 16, a sling, 17, a first pulley block, 18, a second pulley block, 19, a first connecting plate, 20, a second connecting plate, 21, a third connecting plate, 22, a fourth connecting plate, 23, a first wire rope, 24, a second wire rope, 25, a third wire rope, 26, a fourth wire rope, 27, a fifth wire rope, 28, a sixth wire rope, 29, a seventh wire rope, 30, an eighth wire rope, 31, a flexible leg, 32, a rigid leg, 33, a traveling part, 34, an anchoring device, 35, an inspection door, 36. wind measuring and lightning protection device, 37, crossbeam.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly formed on" or "directly disposed on" another element, there are no intervening elements present.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-6, the crane dedicated for the upper rotation energy feedback intelligent container comprises an electric control system and a traveling mechanism, wherein the traveling mechanism comprises a first portal frame 1 and a second portal frame 2 which are symmetrically arranged, a traveling crane assembly 3 is slidably arranged between the first portal frame 1 and the second portal frame 2, the traveling crane assembly 3 comprises a traveling crane frame 4, a traveling crane swing mechanism 5 arranged on the traveling crane frame 4 and a spreader assembly 6 arranged on the traveling crane swing mechanism 5, and the traveling crane assembly 3 is controlled by the electric control system to rotate or move between the first portal frame 1 and the second portal frame 2 after the spreader assembly 6 lifts a container.
As shown in fig. 4, the four ends of the traveling crane frame 4 are provided with traveling crane operation mechanisms 7, each traveling crane operation mechanism 7 comprises a horizontal wheel and a motor 15 for driving the horizontal wheel, each motor 15 is a ZDY type explosion-proof conical rotor three-phase asynchronous motor for hoisting, and the first portal frame 1 and the second portal frame 2 are provided with chutes matched with the horizontal wheels. The running mechanism 7 adopts frequency conversion speed regulation control, four-wheel full drive ensures that the running can run on a slope of 0.5 percent against the wind or 0.5 percent down the wind under the condition of hanging rated load, the braking is stable and reliable, and the running mechanism 7 is provided with a limit switch to be interlocked with the running.
As shown in fig. 2 and 3, the crane slewing mechanism 5 enables the hanger assembly 6 to rotate at-10 to +280 degrees, so as to be convenient for aligning boxes and meeting loading and unloading requirements, and the slewing crane frame 9 is provided with an ultrahigh limiting and hanger 16 cable fixing device; driving rotation mechanism 5 includes circular gyration track 8 and gyration driving frame 9, 9 four corners ends of gyration driving frame are equipped with gyration wheel 10, and for avoiding gyration wheel 10 to gnaw the rail, gyration wheel 10 adopts aligning roller bearing and eccentric bearing cover structure, closes on the position of gyration wheel 10 is equipped with the perpendicular to the horizontal leading wheel 11 of gyration driving frame, the adjustable clearance with the track side of horizontal leading wheel 11, gyration wheel 10 slides in the gyration track 8, the outward flange of horizontal leading wheel 11 with gyration track 8 inner wall is tangent, makes gyration driving frame 9 follows under the effect of gyration wheel 10 gyration track 8 is rotatory, prevents gyration wheel 10 derailment.
As shown in fig. 4, four sets of the turning wheels 10 are provided with motors 15 for driving the turning wheels 10, and the motors 15 are 4 special variable frequency motors with micro switches for 4 KW. Any one group of the rotary wheels 10 is provided with a photoelectric sensor and an encoder, and a support seat 12 is arranged between the horizontal guide wheel 11 and the rotary frame.
As shown in fig. 5 to 6, the spreader assembly 6 is installed on the revolving traveling crane frame 9, the spreader assembly 6 includes a wire rope reel 13, and a first pulley block 17 and a second pulley block 18 which are disposed on both sides of the wire rope reel 13, a rotating shaft is disposed in the wire rope reel 13, both ends of the rotating shaft are connected to a motor 15 through a speed reducer 14, a wire rope set is wound on the wire rope reel 13, and the wire rope set passes through the first pulley block 17 and the second pulley block 18 and is connected to a spreader 16. The first pulley block 17 and the second pulley block 18 are stably connected with the steel wire rope group, so that a simple pendulum effect cannot be generated in the conversion process of kinetic energy and potential energy during hoisting swing, and a very good anti-swing effect is achieved.
A first connecting plate 19, a second connecting plate 20, a third connecting plate 21 and a fourth connecting plate 22 are respectively arranged at the center positions of the four sides of the hanger 16, the first connecting plate 19 and the second connecting plate 20 are oppositely arranged, and the third connecting plate 21 and the fourth connecting plate 22 are oppositely arranged; the set of wire ropes comprises a first wire rope 23, a second wire rope 24, a third wire rope 25 and a fourth wire rope 26 turned towards the first pulley block 17, and a fifth wire rope 27, a sixth wire rope 28, a seventh wire rope 29 and an eighth wire rope 30 turned towards the second pulley block 18; the first wire rope 23, the second wire rope 24, the third wire rope 25 and the fourth wire rope 26 are wound on the wire rope reel 13 and are wound out from the lower part of the wire rope reel 13, the fifth wire rope 27, the sixth wire rope 28, the seventh wire rope 29 and the eighth wire rope 30 are wound on the wire rope reel 13 and are wound out from the upper part of the wire rope reel 13, when the wire rope reel 13 rotates, the first wire rope 23, the second wire rope 24, the third wire rope 25 and the fourth wire rope 26 which turn towards the first pulley block 17, and the fifth wire rope 27, the sixth wire rope 28, the seventh wire rope 29 and the eighth wire rope 30 which turn towards the second pulley block 18 can be synchronized, and the lifting and falling of the wire rope group to the hanger 16 are realized.
The first pulley block 17 comprises a first pulley frame, a first pulley, a second pulley, a third pulley, a fourth pulley, a fifth pulley and a sixth pulley are sequentially arranged on the first pulley frame along the length direction of the steel wire rope reel 13, the second pulley block 18 comprises a second pulley frame, a seventh pulley, an eighth pulley, a ninth pulley, a tenth pulley, an eleventh pulley and a twelfth pulley are sequentially arranged on the second pulley frame along the length direction of the wire rope reel 13, the central axes of the second pulley, the fourth pulley, the ninth pulley and the eleventh pulley are all parallel to the central axis of the steel wire rope drum 13, the pulley end faces of the first pulley, the sixth pulley, the seventh pulley and the twelfth pulley are all vertical to the radial section of the steel wire rope drum 13, the pulley end faces of the third pulley, the fifth pulley, the eighth pulley and the tenth pulley are all parallel to the top face of the lifting appliance 16.
As shown in fig. 6, the winding sequence of the wire rope group on the wire rope reel 13 is as follows: a fifth wire rope 27, a first wire rope 23, a sixth wire rope 28, a seventh wire rope 29, a second wire rope 24, an eighth wire rope 30, a third wire rope 25 and a fourth wire rope 26, which form an eight-rope anti-sway arrangement, the first connecting plate 19 is connected with the second wire rope 24 and the fourth wire rope 26: the second steel wire rope 24 is connected with the first connecting plate 19 by winding the first pulley after being turned around the third pulley, and the fourth steel wire rope 26 is connected with the first connecting plate 19 by winding the sixth pulley after being turned around the fifth pulley; the second connecting plate 20 is connected with a fifth steel wire rope 27 and a seventh steel wire rope 29: the fifth steel wire rope 27 is connected with the second connecting plate 20 by winding the seventh pulley after being turned around the eighth pulley, and the seventh steel wire rope 29 is connected with the second connecting plate 20 by winding the twelfth pulley after being turned around the tenth pulley; the third connecting plate 21 is connected with a first steel wire rope 23 and a sixth steel wire rope 28: the first steel wire rope 23 is wound around the second pulley and then connected with the third connecting plate 21, and the sixth steel wire rope 28 is wound around the ninth pulley and then connected with the third connecting plate 21; the eighth wire rope 30 and the third wire rope 25 are connected to the fourth connecting plate 22: and an eighth steel wire rope 30 is wound around the eleventh pulley and then connected with the fourth connecting plate 22, and a third steel wire rope 25 is wound around the fourth pulley and then connected with the fourth connecting plate 22. The turnbuckle screws are obliquely and crosswise connected to the middle points of the four sides of the lifting appliance 16 in the connection mode to form 4 equal isosceles triangles, so that the horizontal component force of the steel wire rope sets in the driving direction is large enough, the anti-swing function of the lifting appliance 16 in the driving direction is realized by the component force, when the lifting appliance 16 starts to swing, the horizontal component force generated by the steel wire rope on the other side can inhibit the swing of the lifting appliance 16, and the rigidity of the lifting appliance assembly 6 is improved.
The power control system comprises an energy feedback unit, a power distribution system, a PLC control system, a variable-frequency dragging system, a linkage table operating system, a touch screen monitoring system, a communication command system and a safety and state monitoring system.
The power distribution system is provided with reliable electrical protection measures such as short circuit, overcurrent, overvoltage, undervoltage, voltage loss, phase dislocation and the like, important protection limits such as lifting impact top (heavy hammer) limit, overspeed switch and the like, is interlocked with the power supply contactor, and is provided with emergency stop buttons in a driver cab, an electric room and each operation station. When an emergency and an important fault occur, the power supply is disconnected, and the brakes of all mechanisms are automatically braked after the brakes are in a voltage loss state, so that a larger accident is avoided. Non-important protection limit such as door limit, anchoring limit, stroke limit and the like are connected into the PLC system to control the power supply contactor to stop but continuously start.
The PLC control system is flexible and efficient, the performance is strong, the PLC can flexibly expand the input interface module and the output interface module, the modular structure can be rapidly disassembled and replaced on site without causing long-time shutdown, the working condition requirements of loading and unloading operation of a railway gantry crane are met, and the efficiency of a site engineer for solving faults is greatly improved due to the powerful online diagnosis function; accurate motor 15 control effectively reduces mechanical wear: the frequency converter can accurately control the torque of the motor 15, stepless speed regulation is realized, zero-speed brake of the mechanism is realized, mechanical impact is reduced to the minimum, and the service life of the equipment is effectively prolonged; the strong communication bus makes the control system simple and has higher control performance, greatly increases the reliability of the system, and provides a large amount of original diagnosis data for intelligent fault diagnosis of the system.
The communication command system and the safety and state monitoring system can comprehensively monitor the safety condition and the working state of the hoisting machinery, and the remote equipment monitoring platform has the functions of real-time video monitoring, safety and state monitoring, intelligent fault diagnosis, remote equipment maintenance, maintenance plan management, equipment management, operation management, automatic information pushing and the like of the crane, can effectively provide comprehensive and timely data assistance for management decision-making personnel, and simultaneously assists maintenance personnel in monitoring and maintaining the equipment. The system consists of a digital high-definition voice intercom system, a digital high-definition video monitoring system, a state monitoring system, a local monitoring host, network transmission equipment and a remote monitoring platform.
The energy feedback unit comprises an energy feedback device, the energy feedback device is arranged on the lifting appliance assembly 6, so that potential energy released in the full-load, load or no-load lower stage in the container carrying process is fed back to the power grid through the energy feedback device, and the purpose of energy conservation is achieved.
As shown in fig. 1 and 2, each of the first portal frame 1 and the second portal frame 2 includes a cross beam 37, one end of the cross beam 37 is provided with a flexible leg 31, the other end of the cross beam 37 is provided with a rigid leg 32 with a climbing ladder, the bottom ends of the flexible leg 31 and the rigid leg 32 are both provided with a traveling part 33, the traveling part 33 includes 6 wheels, a balance beam, a bogie frame, a wheel set, a pin shaft, a bearing and the like, the design of the 6 wheels disperses the wheel pressure of each wheel, and ensures that the traveling mechanism has reliable quality and stable use. An anchoring device 34 is arranged between the two opposite walking components 33, the anchoring device 34 is arranged on the supporting beam between the opposite flexible supporting legs 31 and is matched with an existing anchoring groove of a field for anchoring, each anchoring groove can bear horizontal force under specified wind speed, the flexible supporting legs 31 comprise upper supporting legs and lower supporting legs, the upper supporting legs and the lower supporting legs are connected through pin shafts, and the gaps between the upper supporting legs and the lower supporting legs are 4-5 mm; an access door hanger 35 is arranged between the first portal frame 1 and the second portal frame 2, and a wind measuring and lightning protection device 36 is arranged on the access door hanger 35.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. Go up special hoist of rotary energy repayment intelligent container, its characterized in that: including electric control system and running gear, running gear is including first portal frame and the second portal frame that the symmetry set up, it is equipped with the driving assembly to slide between first portal frame and the second portal frame, the driving assembly includes the driving frame, sets up driving rotation mechanism on the driving frame is in with the setting hoist assembly on the driving rotation mechanism is right through electric control system the driving assembly is controlled, is in after messenger's hoist assembly lifts the container rotatory or remove between first portal frame and the second portal frame.
2. The upper rotary energy feedback intelligent container dedicated crane according to claim 1, wherein: four ends of the travelling crane frame are provided with travelling crane running mechanisms, each travelling crane running mechanism comprises a horizontal wheel and a motor for driving the horizontal wheel, and sliding grooves matched with the horizontal wheels are formed in the first portal frame and the second portal frame.
3. The upper rotary energy feedback intelligent container dedicated crane according to claim 1, wherein: the driving swing mechanism comprises a circular swing track and a swing frame, swing wheels are arranged at the four corners of the swing frame, horizontal guide wheels perpendicular to the swing frame are arranged at positions close to the swing wheels, the swing wheels slide in the swing track, and the outer edges of the horizontal guide wheels are tangent to the inner wall of the swing track, so that the swing frame rotates along the swing track under the action of the swing wheels.
4. The upper rotary energy feedback intelligent container dedicated crane according to claim 3, wherein: the four groups of rotary wheels are respectively provided with a motor for driving the rotary wheels, any one group of rotary wheels is provided with a photoelectric sensor and an encoder, and a supporting seat is arranged between the horizontal guide wheel and the rotary frame.
5. The upper rotary energy feedback intelligent container dedicated crane according to claim 3, wherein: the lifting appliance assembly is installed on the rotary traveling crane frame, the lifting appliance assembly comprises a steel wire rope reel, a first pulley block and a second pulley block, the first pulley block and the second pulley block are arranged on two sides of the steel wire rope reel, a rotating shaft is arranged in the steel wire rope reel, two ends of the rotating shaft are connected with a motor through a speed reducer, a steel wire rope group is wound on the steel wire rope reel, and the steel wire rope group penetrates through the first pulley block and the second pulley block to be connected with a lifting appliance.
6. The upper rotary energy feedback intelligent container dedicated crane according to claim 5, wherein: four sides of the lifting appliance are respectively provided with a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate; the steel wire rope group comprises a first steel wire rope, a second steel wire rope, a third steel wire rope and a fourth steel wire rope which turn towards the first pulley block, and a fifth steel wire rope, a sixth steel wire rope, a seventh steel wire rope and an eighth steel wire rope which turn towards the second pulley block.
7. The upper rotary energy feedback intelligent container dedicated crane according to claim 1, wherein: the power control system comprises an energy feedback unit, a power distribution system, a PLC control system, a variable-frequency dragging system, a linkage table operating system, a touch screen monitoring system, a communication command system and a safety and state monitoring system.
8. The upper rotary energy feedback smart container specialized crane according to claim 7, wherein: the energy feedback unit comprises an energy feedback device, and the energy feedback device is installed on the lifting appliance assembly.
9. The upper rotary energy feedback intelligent container dedicated crane according to claim 1, wherein: the first portal frame and the second portal frame both comprise a cross beam, one end of the cross beam is provided with a flexible supporting leg, the other end of the cross beam is provided with a rigid supporting leg with a climbing ladder, the bottom ends of the flexible supporting leg and the rigid supporting leg are both provided with a walking part, an anchoring device is arranged between the two opposite walking parts, the flexible supporting leg comprises an upper supporting leg and a lower supporting leg, the upper supporting leg and the lower supporting leg are connected through a pin shaft, and the gap between the upper supporting leg and the lower supporting leg is 4-5 mm.
10. The upper rotary energy feedback smart container specialized crane according to claim 9, wherein: an access door hanger is arranged between the first portal frame and the second portal frame, and a wind measuring and lightning protection device is arranged on the access door hanger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111505142.XA CN114212676A (en) | 2021-12-10 | 2021-12-10 | Special crane for upper rotation energy feedback intelligent container |
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| CN202111505142.XA CN114212676A (en) | 2021-12-10 | 2021-12-10 | Special crane for upper rotation energy feedback intelligent container |
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| CN202111505142.XA Pending CN114212676A (en) | 2021-12-10 | 2021-12-10 | Special crane for upper rotation energy feedback intelligent container |
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Cited By (1)
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