CN117142318B - Ocean engineering crane - Google Patents
Ocean engineering crane Download PDFInfo
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- CN117142318B CN117142318B CN202311121581.XA CN202311121581A CN117142318B CN 117142318 B CN117142318 B CN 117142318B CN 202311121581 A CN202311121581 A CN 202311121581A CN 117142318 B CN117142318 B CN 117142318B
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- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 239000000872 buffer Substances 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 15
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 description 6
- 239000003550 marker Substances 0.000 description 5
- 230000035882 stress Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
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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
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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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
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
- B66C13/14—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices to load-engaging elements or motors associated therewith
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9093—Arrangements for supporting the sensor; Combinations of eddy-current sensors and auxiliary arrangements for marking or for rejecting
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Jib Cranes (AREA)
Abstract
The invention relates to the field of marine cranes, in particular to a marine engineering crane which comprises a frame, wherein the marine crane is used for solving the problem that the influence caused by sea wind in the hoisting process is very large, and the strong sea wind can cause the hoisted object to swing or even rotate, so that the bearing capacity of a lifting rope can be continuously challenged, and the damage and ageing of the lifting rope are accelerated to cause serious potential safety hazards; an eddy current inspection device; the range identification module is arranged at the bottom of the frame, and the vortex detection device is arranged in the range identification module; a retractable limiting module; the range buffer mechanism is arranged at the bottom of the frame, and the top end of the second sleeve is movably connected with the range buffer mechanism; the multi-directional unreeling mechanism and the rope sliding mechanism realize the purpose of avoiding overlarge swing of the steel wire rope in the hoisting process of the crane, detect the damage condition of the steel wire rope in real time and also avoid breakage caused by limit of the rope sliding load capacity when the wind power is strong.
Description
Technical Field
The invention relates to the field of marine cranes, in particular to a marine engineering crane.
Background
A crane refers to a multi-action lifting machine that vertically lifts and horizontally conveys weights within a certain range. Also known as crown block, aerial crane and crane.
The lifting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms of taking materials, moving, unloading and the like in one working cycle work alternately, and the crane is increasingly widely developed and used in the market. Because landing leg hanging weight and hanging weight running are not needed, accidents often occur, and the running speed is higher than that of a crawler crane (crawler crane); the operation is stable, the lifting capacity is high, the crane can walk in a specific range, but the road is smooth and firm, the tire pressure meets the requirement, and the crane cannot be lifted off the ground by more than 50CM; and forbidding long-distance walking with load. In order to ensure the operation safety, the hoisting operation is basically forbidden without landing legs in China. The steel wire rope varieties matched with the crane comprise phosphatized coating steel wire ropes, galvanized steel wire ropes and polished steel wire ropes.
Chinese patent: CN202111246422.3 discloses a special buffer gear of ocean engineering hoist and mount operation, to the current traditional hoisting machinery when lifting heavy object do not have buffer gear, can lead to lifting rope and lifting equipment to appear fatigue damage for a long time use to lead to the problem of incident emergence, the scheme of proposing, it includes the base, the top of base is provided with four buffering damper, and four buffering damper's top is provided with same roof, and the top of base is provided with a plurality of universal wheels, is provided with two buffering stop gear between base and the roof, still is provided with two restriction mobile mechanism and two warning sign telescopic machanism on the base, and the invention is convenient to shift and fix, uses comparatively convenient, can reduce the impact force when lifting equipment is hoisted through buffering damper, avoids lifting rope and lifting equipment to appear fatigue damage prematurely, thereby leads to the incident emergence.
The crane is operated at sea, the influence caused by sea wind in the hoisting process is very large, the strong sea wind can cause the hoisted object to swing or even rotate, the bearing capacity of the lifting rope can be continuously challenged, the damage and aging of the lifting rope are quickened, and serious potential safety hazards are caused, so that the problem of causing the impact force source is only solved by damping the crane main body without solving the problem, the symptoms are treated, and the crane for ocean engineering needs to be provided for solving the problem.
Disclosure of Invention
To solve the technical problems.
The application provides a marine engineering crane, which comprises a frame, wherein the frame is arranged on a crane main body, and a first pulley for guiding the trend of a steel wire rope is arranged on the frame; the vortex detection device is used for detecting damage condition of the steel wire rope; the range identification module is arranged at the bottom of the frame, and the vortex detection device is arranged in the range identification module; the telescopic limiting module comprises a connector, a first sleeve and a second sleeve, the connector is connected with the movable end of the steel wire rope, the connector is arranged at the bottom end of the first sleeve, and the top end of the first sleeve is in sliding connection with the second sleeve; the range buffer mechanism is arranged at the bottom of the frame, and the top end of the second sleeve is movably connected with the range buffer mechanism; the multidirectional unreeling mechanism is arranged at the top of the rack; and the plurality of sliding ropes are arranged, one ends of the plurality of sliding ropes are arranged on the connecting head in a surrounding manner, and the other ends of the plurality of sliding ropes are connected with the output end of the multidirectional unreeling mechanism.
Preferably, the range identification module comprises a first fixing frame, the first fixing frame is arranged at the bottom of the frame, and the vortex detection device is arranged at the middle part of the first fixing frame; the electric push rods are respectively positioned at the upper side and the lower side of the first fixing frame, and the output ends of the electric push rods are provided with marker pens; and the rotary driver is arranged on the first fixing frame, and the output ends of the rotary driver are respectively connected with the two electric push rods.
Preferably, the rotary driver comprises a first servo motor which is arranged on the first fixing frame and fixedly connected with the first fixing frame; the first gears are respectively arranged on the upper side and the lower side of the first fixing frame and are rotatably connected with the first fixing frame, and the first servo motors are respectively connected with the two first gears in a transmission way; and the rotating rings are respectively arranged on the upper side and the lower side of the first fixing frame and are rotatably connected with the first fixing frame, the electric push rod is arranged on the rotating rings and is fixedly connected with the rotating rings, the first gear ring is sleeved on the rotating rings and is fixedly connected with the rotating rings, and the first gear is meshed with the first gear ring.
Preferably, the range buffer mechanism comprises an annular frame, the annular frame is arranged below the range identification module, and the annular frame is fixedly connected with the non-working part of the range identification module; the limiting ring is arranged at the bottom of the annular frame and is fixedly connected with the annular frame; and the movable ring is arranged at the top end of the second sleeve, the movable ring is positioned above the limiting ring, and the outer diameter of the movable ring is positioned between the outer diameter and the inner diameter of the limiting ring.
Preferably, the range buffer mechanism further comprises a first spring, the first spring is arranged on the annular frame in a surrounding mode, and the output end of the first spring is connected with the outer edge of the movable ring; and an air bag which is arranged on the annular frame and surrounds the movable ring.
Preferably, the multidirectional unreeling mechanism comprises a tray frame, wherein the tray frame is arranged above the rack, a plurality of winding rods are arranged around the tray frame and are rotatably connected with the tray frame, the chute rope is wound on the winding rods, and a second gear is arranged at the stress end of the winding rods; the second gear ring is arranged on the tray frame and is rotatably connected with the tray frame, and the second gear ring is meshed with the plurality of second gears; and the second servo motor is arranged on the disc frame and fixedly connected with the disc frame, a third gear is arranged at the output end of the second servo motor, and the third gear is meshed with the second gear ring.
Preferably, the crane further comprises overload pressure relief mechanisms, the number of the overload pressure relief mechanisms corresponds to the number of the sliding ropes, the overload pressure relief mechanisms are arranged on the top of the frame in a surrounding mode, and the sliding ropes pass through the output ends of the overload pressure relief mechanisms; and the push-back mechanism is arranged at the top of the frame, and the output end of the push-back mechanism is communicated with the inside of the overload pressure relief mechanism.
Preferably, the overload relief mechanism includes a second pulley; the groove frame is fixedly connected with the top of the frame, and the second pulley is in sliding connection with the groove frame; the second spring is arranged in the groove frame, and the output end of the second spring is abutted against the second pulley; and the pressure-bearing sheet is arranged in the groove frame and is close to the second pulley.
Preferably, the push-back mechanism comprises a second fixing frame, and the second fixing frame is arranged at the top of the frame; the linear driver is arranged on the second fixing frame; the number of the connecting rods is consistent with that of the overload pressure relief mechanisms, and the connecting rods are arranged at the output end of the linear driver in a surrounding mode; and the push rod is arranged at the tail part of the groove frame and is in sliding connection with the groove frame, and the output end of the connecting rod is hinged with the push rod.
Preferably, the linear driver comprises a sliding ring, a limiting rod is arranged on the sliding ring, penetrates through the second fixing frame and is in sliding connection with the second fixing frame, and the stress end of the connecting rods is arranged at the bottom end of the sliding ring in a surrounding manner and is hinged with the sliding ring; the sliding ring is sleeved on the threaded rod and is in threaded connection with the threaded rod; and the output end of the third servo motor is connected with the threaded rod.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the device, through the arrangement of the frame, the vortex detection device, the range identification module, the telescopic limiting module, the range buffer mechanism, the multidirectional unreeling mechanism and the sliding rope, the purpose of avoiding overlarge swing amplitude of the steel wire rope in the hoisting process of the crane is achieved, the damage condition of the steel wire rope is detected in real time, the risks that the steel wire rope is damaged and broken in the swing and torsion processes due to wind force are solved, and potential safety hazards caused when the steel wire rope is damaged and no detection is found are avoided;
2. according to the telescopic limiting module, the annular frame, the limiting ring, the movable ring, the first spring and the air bag are arranged, so that the movable process of the telescopic limiting module can be buffered while the movable space of the telescopic limiting module is reserved, and the position of the movable ring is quickly corrected through the extrusion action of the air bag so as to assist the stability in the lifting process;
3. according to the device, through the arrangement of the overload pressure relief mechanism and the push-back mechanism, the rope sliding load capacity can be prevented from reaching the limit and breaking when the wind force is strong, and the balanced steel wire rope function of the rope sliding can be recovered in time when the wind force is weakened;
4. through the setting of first mount, electric putter, marker pen and rotary actuator, can mark wire rope damage scope for the staff can find wire rope damage point fast and carry out corresponding measure.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic perspective view of an eddy current inspection device and a range identification module according to the present invention;
FIG. 5 is a front view of the eddy current inspection apparatus and range identification module of the present invention;
FIG. 6 is a schematic perspective view of a second sleeve and range buffering mechanism of the present invention;
FIG. 7 is a top view of a second sleeve and range buffer mechanism of the present invention;
FIG. 8 is a front view of a second sleeve and range buffer mechanism of the present invention;
FIG. 9 is a cross-sectional view taken in the direction A-A of FIG. 8;
FIG. 10 is a schematic perspective view of a multidirectional unwinding mechanism of the present invention;
FIG. 11 is a schematic perspective view of the frame, overload relief mechanism and push-back mechanism of the present invention;
FIG. 12 is a side view of the frame, overload relief mechanism, and push-back mechanism of the present invention;
fig. 13 is a schematic view of the internal structure of the overload relief mechanism and pushrod of the present invention.
The reference numerals in the figures are:
1-a frame; 1 A-A first pulley; 1 b-guiding the wheelset;
2-eddy current testing device;
3-a range identification module; 3 A-A first mount; 3 b-electric push rod; 3 c-a marker pen; a 3 d-rotation driver; 3d 1-a first servo motor; 3d 2-first gear; 3d 3-rotating ring; 3d 4-first ring gear;
4-a telescopic limiting module; 4 A-A connector; 4 b-a first sleeve; 4 c-a second sleeve;
5-range buffer mechanism; 5 A-A ring frame; 5 b-a limiting ring; 5 c-a mobile ring; 5 d-a first spring; 5 e-balloon;
6-a multidirectional unreeling mechanism; 6 A-A tray rack; 6 b-winding the roll; 6b 1-a second gear; 6 c-a second ring gear; 6 d-a second servo motor; 6d 1-third gear;
7-rope slipping;
8-an overload pressure relief mechanism; 8 A-A second pulley; 8 b-a trough rack; 8 c-a second spring; 8 d-pressing the sheet;
9-a push-back mechanism; 9 A-A second mount; 9 b-linear drive; 9b 1-slip ring; 9b 2-a limit rod; 9b 3-threaded rod; 9b 4-a third servomotor; 9 c-a connecting rod; 9 d-push rod;
10-a steel wire rope;
11-lifting hook.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
As shown in fig. 1 to 3, the following preferred technical solutions are provided:
the marine engineering crane comprises a frame 1, wherein the frame 1 is arranged on a crane main body, and a first pulley 1a for guiding the trend of a steel wire rope is arranged on the frame 1; the eddy current testing device 2 is used for detecting the damage condition of the steel wire rope; the range identification module 3 is arranged at the bottom of the frame 1, and the vortex detection device 2 is arranged inside the range identification module 3; the telescopic limiting module 4 comprises a connector 4a, a first sleeve 4b and a second sleeve 4c, wherein the connector 4a is connected with the movable end of the steel wire rope, the connector 4a is arranged at the bottom end of the first sleeve 4b, and the top end of the first sleeve 4b is in sliding connection with the second sleeve 4 c; the range buffer mechanism 5 is arranged at the bottom of the frame 1, and the top end of the second sleeve 4c is movably connected with the range buffer mechanism 5; the multidirectional unreeling mechanism 6 is arranged at the top of the frame 1; the plurality of slide ropes 7 are arranged, one ends of the plurality of slide ropes 7 are arranged on the connector 4a in a surrounding mode, and the other ends of the plurality of slide ropes 7 are connected with the output end of the multidirectional unreeling mechanism 6;
specifically, in order to solve the technical problem that the steel wire rope is damaged to generate potential safety hazards, the mechanisms are arranged on the crane main body and form the crane, the steel wire rope is unreeled through a winch when the hoisting is started, in the process of unreeling the steel wire rope, the connector 4a of the telescopic limiting module 4 is driven to descend along with the movable ends of the steel wire rope, the connector 4a drives the movable ends of the plurality of slide ropes 7 to descend along with the movable ends of the steel wire rope, the multi-directional unreeling mechanism 6 is matched with the descent of the steel wire rope to unreel the slide ropes 7, the multi-directional unreeling mechanism 6 ensures that the slide ropes 7 are not in a tight state, the connector 4a drives the first sleeve 4b and the second sleeve 4c to extend gradually, the first sleeve 4b and the second sleeve 4c can be continuously additionally arranged according to the use condition to adapt to the length, in the process of descending the steel wire rope continuously passes through the working ends of the vortex detecting device 2, the eddy current detecting device 2 is mature existing equipment, so that details are not needed, the eddy current detecting device 2 detects the passing steel wire rope in real time, when the steel wire rope has defects of wire breakage, outer diameter change, internal corrosion, abrasion and the like, a computer qualitatively judges the type of the wire breakage defect of the steel wire rope according to the collected signals, meanwhile, the range identification module 3 is opened, the range identification module 3 marks the damaged part of the steel wire rope so that workers can immediately find the damaged position and take countermeasures, the damage of the steel wire rope is required to be classified into types, the hoisting process is not influenced when slight damage occurs, the detection of the steel wire rope is used as the collection of the damage degree, the workers can prepare for countermeasures in advance, and timely reminding when the damage degree of the steel wire rope is insufficient for hoisting tasks, the lifting hook at the movable end of the steel wire rope is connected with a hoisted object, when windy conditions occur in the hoisting process, the steel wire rope cannot swing due to the axial limitation of the telescopic limiting module 4, and the telescopic limiting module 4 only has one connecting point of the second sleeve 4c at the top end and the range buffer mechanism 5, so that the connection at the top end of the telescopic limiting module 4 is easy to break and damage when the telescopic limiting module 4 bears pressure, the stable state of the steel wire rope is maintained through a plurality of sliding ropes 7, the telescopic limiting module 4 can horizontally move in a small range through the arrangement of the range buffer mechanism 5, and a certain moving space is reserved for the telescopic limiting module 4 by unwinding the sliding ropes 7 with a small length, so that the telescopic limiting module 4 is prevented from bearing too much pressure, and meanwhile, the swinging impact force is released, but when the swinging amplitude is too large, the sliding ropes 7 opposite to the swinging direction pull the steel wire rope through the connecting heads 4a, so that the balance of the steel wire rope hoisted goods is maintained.
As shown in fig. 4, the following preferred technical scheme is provided:
the range identification module 3 comprises a first fixing frame 3a, the first fixing frame 3a is arranged at the bottom of the frame 1, and the vortex detection device 2 is arranged at the middle part of the first fixing frame 3 a; the electric push rods 3b are respectively positioned at the upper side and the lower side of the first fixing frame 3a, and the output ends of the electric push rods 3b are provided with marking pens 3c; the rotary driver 3d is arranged on the first fixing frame 3a, and the output ends of the rotary driver 3d are respectively connected with the two electric push rods 3 b;
specifically, in order to solve the technical problem of marking the damaged portion of the steel wire rope, when the vortex detecting device 2 detects that the steel wire rope is damaged, the electric push rod 3b below the vortex detecting device 2 pushes the marking pen 3c to contact the surface of the steel wire rope, the rotary driver 3d indirectly drives the marking pen 3c below the vortex detecting device 2 to move around the steel wire rope to finish marking, when the vortex detecting device 2 detects that the steel wire rope is in a normal state, the electric push rod 3b above the vortex detecting device 2 pushes the marking pen 3c to contact the surface of the steel wire rope, and the rotary driver 3d indirectly drives the marking pen 3c above the vortex detecting device 2 to move around the steel wire rope to finish marking, and at the moment, marking of the damaged portion of the steel wire rope is finished.
As shown in fig. 5, the following preferred technical scheme is provided:
the rotary driver 3d comprises a first servo motor 3d1, and the first servo motor 3d1 is arranged on the first fixing frame 3a and fixedly connected with the first fixing frame; the first gears 3d2 are respectively arranged on the upper side and the lower side of the first fixing frame 3a and are rotatably connected with the first fixing frame, and the first servo motor 3d1 is respectively connected with the two first gears 3d2 in a transmission way; the rotating rings 3d3 are respectively arranged on the upper side and the lower side of the first fixing frame 3a and are rotatably connected with the first fixing frame 3a, the electric push rod 3b is arranged on the rotating rings 3d3 and is fixedly connected with the rotating rings, the rotating rings 3d3 are sleeved with first gear rings 3d4 and are fixedly connected with the first gear rings 3d4, and the first gear 3d2 is meshed with the first gear rings 3d 4;
specifically, in order to solve the technical problem of driving the marker pen 3c to scribe the wire rope, the output end of the first servo motor 3d1 drives two first gears 3d2 to rotate, the two first gears 3d2 drive two rotating rings 3d3 to rotate through two first gear rings 3d4 respectively, and the marker pen 3c above or below the eddy current detection device 2 is driven by the rotating rings 3d3 to scribe the surface of the wire rope when contacting the wire rope.
As shown in fig. 6, the following preferred technical scheme is provided:
the range buffer mechanism 5 comprises an annular frame 5a, the annular frame 5a is arranged below the range identification module 3, and the annular frame 5a is fixedly connected with a non-working part of the range identification module 3; the limiting ring 5b is arranged at the bottom of the annular frame 5a and is fixedly connected with the annular frame 5 a; the movable ring 5c is arranged at the top end of the second sleeve 4c, the movable ring 5c is positioned above the limiting ring 5b, and the outer diameter of the movable ring 5c is positioned between the outer diameter and the inner diameter of the limiting ring 5 b;
specifically, in order to solve the technical problem that the telescopic limiting module 4 receives excessive radial force, the second sleeve 4c can move in the inner diameter range of the limiting ring 5b through the arrangement of the limiting ring 5b and the movable ring 5c, so that the excessive impact force of the telescopic limiting module 4 during swinging in the steel wire rope hoisting is avoided, and the annular frame 5a is used for fixed support.
As shown in fig. 7 to 9, the following preferred technical solutions are provided:
the range buffer mechanism 5 further comprises a first spring 5d, the first spring 5d is arranged on the annular frame 5a in a surrounding mode, and the output end of the first spring 5d is connected with the outer edge of the movable ring 5c; and an air bag 5e, the air bag 5e being provided on the annular frame 5a, and the air bag 5e surrounding the movable ring 5c;
specifically, in order to solve the technical problems of impact force and position correction when buffering the movement of the second sleeve 4c, the second sleeve 4c is driven to move along with the second sleeve when the second sleeve 4c starts to move horizontally under the action of the steel wire rope, and at the moment, the movable ring 5c is pushed back in any moving direction through the first spring 5d which is arranged in a surrounding manner, so that the second sleeve 4c is prevented from directly colliding with the inner edge of the limiting ring 5b, when the wind force weakens and swings and tends to be stable, the stable speed of the steel wire rope needs to be accelerated to finish hoisting, the air pump is connected with the air bag 5e, and the air bag 5e is inflated to expand and squeeze the movable ring 5c, so that the movable ring 5c and the limiting ring 5b are positioned on the same axis.
As shown in fig. 10, the following preferred technical scheme is provided:
the multidirectional unreeling mechanism 6 comprises a tray frame 6a, wherein the tray frame 6a is arranged above the rack 1, the tray frame 6a is provided with a plurality of reeling rods 6b in a surrounding mode and is rotatably connected with the reeling rods 6b, a chute 7 is wound on the reeling rods 6b, and a second gear 6b1 is arranged at the stress end of the reeling rods 6 b; a second ring gear 6c, the second ring gear 6c being provided on the disc carrier 6a and rotatably connected thereto, the second ring gear 6c being meshed with the plurality of second gears 6b1; the second servo motor 6d is arranged on the disc frame 6a and fixedly connected with the disc frame 6a, a third gear 6d1 is arranged at the output end of the second servo motor 6d, and the third gear 6d1 is meshed with the second gear ring 6 c;
specifically, in order to solve the technical problem of simultaneously winding and unwinding the plurality of directional ropes 7, a guide wheel set 1b is arranged above the frame 1, the guide wheel set 1b is used for guiding the moving direction of the ropes 7, in the process of unwinding the steel wire ropes, the multidirectional unwinding mechanism 6 is matched with the descending of the steel wire ropes to unwind the ropes 7, the output end of the second servo motor 6d drives a third gear 6d1 to rotate, the third gear 6d1 drives a plurality of second gears 6b1 to rotate through a second gear ring 6c, the second gear 6b1 drives a winding rod 6b to rotate to complete the unwinding of the ropes 7, and the ropes 7 are kept in a non-tightening state, so that the telescopic limiting module 4 can have a certain movable space to complete the unloading force.
As shown in fig. 2, 3 and 11, the following preferred technical solutions are provided:
the crane further comprises overload pressure relief mechanisms 8, the number of the overload pressure relief mechanisms 8 corresponds to the number of the slide ropes 7, the overload pressure relief mechanisms 8 are arranged on the top of the frame 1 in a surrounding mode, and the slide ropes 7 pass through the output ends of the overload pressure relief mechanisms 8; the push-back mechanism 9 is arranged at the top of the frame 1, and the output end of the push-back mechanism 9 is communicated with the inside of the overload pressure relief mechanism 8;
specifically, in order to solve the technical problem that the excessive load of the chute rope 7 can cause breakage, the stressed chute rope 7 can transmit pressure to the output end of the overload pressure relief mechanism 8, when the wind force is too strong, the overload pressure relief mechanism 8 can stop tightening the chute rope 7 and enable the chute rope 7 to obtain a larger moving range, when the wind force weakens and swings and tends to be stable, the output end of the push-back mechanism 9 drives the output end of the corresponding overload pressure relief mechanism 8 to reset so that the telescopic limiting module 4 is restored to be balanced again.
As shown in fig. 13, the following preferred technical scheme is provided:
the overload relief mechanism 8 comprises a second pulley 8a; the groove frame 8b is arranged at the top of the frame 1 and fixedly connected with the frame, and the second pulley 8a is in sliding connection with the groove frame 8 b; and a second spring 8c, the second spring 8c is arranged in the groove frame 8b, and the output end of the second spring 8c is abutted against the second pulley 8a; and a pressure-bearing sheet 8d, the pressure-bearing sheet 8d being disposed inside the groove frame 8b and being close to the second pulley 8a;
specifically, in order to solve the technical problem of avoiding the excessive load pressure of the sliding rope 7, when the steel wire rope hoist is affected by wind, the sliding rope 7 in the corresponding direction is correspondingly pulled, the sliding rope 7 presses the second pulley 8a, and when the second pulley 8a is pressed too much, the sliding rope 7 is also at risk of fracture, that is, the bearing piece 8d cannot bear the pressure of the second pulley 8a and breaks to enable the bearing piece to obtain a larger movable space when the pressure value is reached, the second spring 8c buffers the movement of the second pulley 8a, the second pulley 8a is also used for guiding the sliding rope 7, and the groove frame 8b is used for fixedly supporting.
As shown in fig. 11, the following preferred technical scheme is provided:
the push-back mechanism 9 comprises a second fixing frame 9a, and the second fixing frame 9a is arranged at the top of the frame 1; and a linear driver 9b, the linear driver 9b being disposed on the second mount 9 a; the number of the connecting rods 9c is consistent with that of the overload relief mechanisms 8, and the connecting rods 9c are arranged at the output end of the linear driver 9b in a surrounding mode; the push rod 9d is arranged at the tail part of the groove frame 8b and is in sliding connection with the groove frame, and the output end of the connecting rod 9c is hinged with the push rod 9 d;
specifically, in order to solve the technical problem of recovering the balanced state of the steel wire rope, when the wind force weakens and swings and tends to be stable, the output end of the linear driver 9b pushes the stressed ends of the plurality of connecting rods 9c to descend, the output ends of the plurality of connecting rods 9c radially push the push rods 9d to move outwards, and the overload pressure release mechanism 8 with the broken bearing piece 8d is pushed by the push rods 9d to reset the second pulley 8a, so that the rope sliding 7 also recovers the function of controlling the balance of the steel wire rope.
As shown in fig. 12, the following preferred technical scheme is provided:
the linear driver 9b comprises a sliding ring 9b1, a limiting rod 9b2 is arranged on the sliding ring 9b1, the limiting rod 9b2 penetrates through the second fixing frame 9a and is in sliding connection with the second fixing frame, and the stress end of the plurality of connecting rods 9c is arranged at the bottom end of the sliding ring 9b1 in a surrounding manner and is hinged with the bottom end of the sliding ring; the threaded rod 9b3, the threaded rod 9b3 is arranged on the second fixing frame 9a and is rotatably connected with the second fixing frame, and the sliding ring 9b1 is sleeved on the threaded rod 9b3 and is in threaded connection with the threaded rod 9 a; the third servo motor 9b4, the third servo motor 9b4 is arranged on the second fixing frame 9a, and the output end of the third servo motor 9b4 is connected with the threaded rod 9b 3;
specifically, in order to solve the technical problem of driving a plurality of second pulleys 8a to reset simultaneously, the output end of the third servo motor 9b4 drives the threaded rod 9b3 to rotate, the threaded rod 9b3 drives the sliding ring 9b1 to descend, the sliding ring 9b1 descends and simultaneously drives a plurality of connecting rods 9c to move along with the stressed ends, the output ends of the connecting rods 9c radially expand outwards to move and push the push rods 9d, and the push rods 9d push the bearing pieces 8d to generate broken second pulleys 8a of the overload pressure relief mechanism 8 to reset in the moving process.
According to the device, through the arrangement of the frame 1, the vortex detection device 2, the range identification module 3, the telescopic limiting module 4, the range buffer mechanism 5, the multidirectional unreeling mechanism 6, the rope sliding 7 overload pressure release mechanism 8 and the push-back mechanism 9, the purpose of avoiding overlarge swing of the steel wire rope in the hoisting process of the crane is achieved, the damage condition of the steel wire rope is detected in real time, the risks of damage and breakage of the steel wire rope in the swing and torsion processes due to wind force action are solved, and potential safety hazards caused when the steel wire rope is damaged and no detection is found are avoided; the rope sliding device can also prevent the rope sliding 7 from breaking when the load capacity reaches the limit when the wind force is strong, and can recover the balanced steel wire rope function of the rope sliding 7 in time when the wind force is weakened.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The ocean engineering crane is characterized by comprising a frame (1), wherein the frame (1) is arranged on a crane main body, and a first pulley (1 a) for guiding a steel wire rope to move is arranged on the frame (1); and
the eddy current detection device (2) is used for detecting the damage condition of the steel wire rope; and
the vortex flow detection device comprises a range identification module (3), wherein the range identification module (3) is arranged at the bottom of the frame (1), and the vortex flow detection device (2) is arranged in the range identification module (3); and
the telescopic limiting module (4), the telescopic limiting module (4) comprises a connector (4 a), a first sleeve (4 b) and a second sleeve (4 c), the connector (4 a) is connected with the movable end of the steel wire rope, the connector (4 a) is arranged at the bottom end of the first sleeve (4 b), and the top end of the first sleeve (4 b) is in sliding connection with the second sleeve (4 c); and
the range buffer mechanism (5), the range buffer mechanism (5) is arranged at the bottom of the frame (1), and the top end of the second sleeve (4 c) is movably connected with the range buffer mechanism (5); and
the multidirectional unreeling mechanism (6) is arranged at the top of the frame (1); and
the plurality of the sliding ropes (7) are arranged, one ends of the plurality of the sliding ropes (7) are arranged on the connector (4 a) in a surrounding mode, and the other ends of the plurality of the sliding ropes (7) are connected with the output end of the multidirectional unreeling mechanism (6); the range identification module (3) comprises a first fixing frame (3 a), the first fixing frame (3 a) is arranged at the bottom of the frame (1), and the vortex detection device (2) is arranged at the middle part of the first fixing frame (3 a); and
the electric push rods (3 b) are respectively positioned at the upper side and the lower side of the first fixing frame (3 a), and the output ends of the electric push rods (3 b) are provided with marking pens (3 c); and
the rotary driver (3 d) is arranged on the first fixing frame (3 a), and the output ends of the rotary driver (3 d) are respectively connected with the two electric push rods (3 b); the rotary driver (3 d) comprises a first servo motor (3 d 1), and the first servo motor (3 d 1) is arranged on the first fixing frame (3 a) and fixedly connected with the first fixing frame; and
the first gears (3 d 2), the first gears (3 d 2) are respectively arranged on the upper side and the lower side of the first fixing frame (3 a) and are rotatably connected with the first fixing frame, and the first servo motor (3 d 1) is respectively connected with the two first gears (3 d 2) in a transmission way; and
the rotating ring (3 d 3), the rotating ring (3 d 3) is respectively arranged on the upper side and the lower side of the first fixing frame (3 a) and is rotatably connected with the first fixing frame, the electric push rod (3 b) is arranged on the rotating ring (3 d 3) and is fixedly connected with the rotating ring, the rotating ring (3 d 3) is sleeved with a first gear ring (3 d 4) and is fixedly connected with the first gear ring (3 d 4), and the first gear (3 d 2) is meshed with the first gear ring (3 d 4); the range buffer mechanism (5) comprises an annular frame (5 a), the annular frame (5 a) is arranged below the range identification module (3), and the annular frame (5 a) is fixedly connected with a non-working part of the range identification module (3); and
the limiting ring (5 b) is arranged at the bottom of the annular frame (5 a) and is fixedly connected with the annular frame (5 a); and
the movable ring (5 c) is arranged at the top end of the second sleeve (4 c), the movable ring (5 c) is positioned above the limiting ring (5 b), and the outer diameter of the movable ring (5 c) is positioned between the outer diameter and the inner diameter of the limiting ring (5 b); the range buffer mechanism (5) further comprises a first spring (5 d), the first spring (5 d) is arranged on the annular frame (5 a) in a surrounding mode, and the output end of the first spring (5 d) is connected with the outer edge of the movable ring (5 c); and
an air bag (5 e), the air bag (5 e) is arranged on the annular frame (5 a), and the air bag (5 e) surrounds the movable ring (5 c).
2. The ocean engineering crane according to claim 1, wherein the multidirectional unreeling mechanism (6) comprises a tray frame (6 a), the tray frame (6 a) is arranged above the frame (1), the tray frame (6 a) is provided with a plurality of winding rods (6 b) in a surrounding mode and is rotatably connected with the winding rods (6 b), the sliding rope (7) is wound on the winding rods (6 b), and a second gear (6 b 1) is arranged at the stress end of the winding rods (6 b);
the second gear ring (6 c), the second gear ring (6 c) is set up on the disc rack (6 a) and connected with it rotatably, the second gear ring (6 c) is meshed with multiple second gears (6 b 1); and
the second servo motor (6 d), second servo motor (6 d) set up on tray frame (6 a) and rather than fixed connection, and the output of second servo motor (6 d) is equipped with third gear (6 d 1), and third gear (6 d 1) and second ring gear (6 c) meshing.
3. The ocean engineering crane according to claim 1, further comprising overload pressure relief mechanisms (8), wherein the number of the overload pressure relief mechanisms (8) corresponds to the number of the slide ropes (7), the overload pressure relief mechanisms (8) are arranged on the top of the frame (1) in a surrounding mode, and the slide ropes (7) pass through the output ends of the overload pressure relief mechanisms (8); and
the push-back mechanism (9), the push-back mechanism (9) is arranged at the top of the frame (1), and the output end of the push-back mechanism (9) is communicated with the inside of the overload pressure release mechanism (8).
4. A crane according to claim 3, characterized in that the overload relief mechanism (8) comprises a second pulley (8 a); and
the groove frame (8 b), the groove frame (8 b) is arranged at the top of the frame (1) and fixedly connected with the frame, and the second pulley (8 a) is in sliding connection with the groove frame (8 b); and
the second spring (8 c) is arranged in the groove frame (8 b), and the output end of the second spring (8 c) is abutted against the second pulley (8 a); and
and the bearing piece (8 d) is arranged in the groove frame (8 b) and is close to the second pulley (8 a).
5. The ocean engineering crane according to claim 4, wherein the push-back mechanism (9) comprises a second fixing frame (9 a), and the second fixing frame (9 a) is arranged at the top of the frame (1); and
a linear driver (9 b), wherein the linear driver (9 b) is arranged on the second fixing frame (9 a); and
the number of the connecting rods (9 c) is consistent with that of the overload relief mechanisms (8), and the connecting rods (9 c) are arranged at the output end of the linear driver (9 b) in a surrounding mode; and
the push rod (9 d), push rod (9 d) set up in the afterbody of cell frame (8 b) and with its sliding connection, the output of connecting rod (9 c) articulates with push rod (9 d).
6. The ocean engineering crane according to claim 5, wherein the linear driver (9 b) comprises a sliding ring (9 b 1), a limiting rod (9 b 2) is arranged on the sliding ring (9 b 1), the limiting rod (9 b 2) penetrates through the second fixing frame (9 a) and is in sliding connection with the second fixing frame, and the stress end of the plurality of connecting rods (9 c) is arranged at the bottom end of the sliding ring (9 b 1) in a surrounding manner and is hinged with the sliding ring; and
the threaded rod (9 b 3), the threaded rod (9 b 3) is arranged on the second fixing frame (9 a) and is rotatably connected with the second fixing frame, and the sliding ring (9 b 1) is sleeved on the threaded rod (9 b 3) and is in threaded connection with the threaded rod;
and a third servo motor (9 b 4), wherein the third servo motor (9 b 4) is arranged on the second fixing frame (9 a), and the output end of the third servo motor (9 b 4) is connected with the threaded rod (9 b 3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311121581.XA CN117142318B (en) | 2023-08-31 | 2023-08-31 | Ocean engineering crane |
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|---|---|---|---|
| CN202311121581.XA CN117142318B (en) | 2023-08-31 | 2023-08-31 | Ocean engineering crane |
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| CN117800209B (en) * | 2024-03-02 | 2024-05-03 | 江苏坚力电子科技股份有限公司 | Large-scale reactor lifting device in extra-high voltage 1100kVGIS alternating-current withstand voltage test |
| CN117819399B (en) * | 2024-03-05 | 2024-06-18 | 河南隧通机械有限公司 | Bridge crane |
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