CN111747303A - Lifting appliance anti-twisting device, lifting and winding system and port crane - Google Patents
Lifting appliance anti-twisting device, lifting and winding system and port crane Download PDFInfo
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- CN111747303A CN111747303A CN202010669817.3A CN202010669817A CN111747303A CN 111747303 A CN111747303 A CN 111747303A CN 202010669817 A CN202010669817 A CN 202010669817A CN 111747303 A CN111747303 A CN 111747303A
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- wire rope
- assembly
- pulley
- rope
- fixing
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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
- B66C13/063—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads electrical
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
- B66D3/08—Arrangements of sheaves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to the technical field of port loading and unloading, in particular to a lifting appliance anti-twisting device, a lifting winding system and a port crane. The sling anti-twisting device comprises a driving assembly, a transmission assembly and a fixing assembly, wherein the fixing assembly is arranged on the transmission assembly and is used for fixedly connecting a steel wire rope assembly of a sling; the driving assembly can drive the transmission assembly to move back and forth along the first direction, so that the fixing assembly pulls the steel wire rope assembly back and forth along the first direction. The lifting winding system comprises the sling anti-twisting device. The port crane comprises the lifting winding system. This device is prevented turning round by hoist, plays to rise winding system and port crane need not the manual hoist wrench movement that resumes of operating personnel, can make the hoist turn round fast and reach rapidly to the case position, practices thrift the manpower and improve to case efficiency to improve the handling efficiency of bank bridge, can eliminate the inertia wrench movement of hoist, avoid "hitting the case" occurence of failure, and then avoid the hoist wrench movement aggravation.
Description
Technical Field
The invention relates to the technical field of port loading and unloading, in particular to a lifting appliance anti-twisting device, a lifting winding system and a port crane.
Background
The port crane usually lifts the shore bridge and then loads and unloads the container through the lifting of the lifting appliance, and after the shore bridge is lifted, the lifting operation needs a longer steel wire rope, so that the steel wire rope is easy to swing or twist in the process of pulling and releasing the steel wire rope, and then the lifting appliance below the steel wire rope is easy to be subjected to inertial twisting or tilting, so that the container is difficult to be aligned with the container.
In the correlation technique, the manual operation is usually adopted to recover the twisting of the lifting appliance, the recovery efficiency of the manual twisting mode is low, the labor is consumed, the working experience of personnel is depended on, the recovery effect of misoperation on the twisting of the lifting appliance is not ideal, and even the occurrence of a box collision accident is easily caused.
Disclosure of Invention
The first purpose of the invention is to provide a sling anti-twisting device, which solves the technical problems of excessive dependence on operator experience and low efficiency caused by the manual recovery of sling twisting by an operator in the prior art to a certain extent.
A second object of the present invention is to provide a hoisting winding system, so as to solve the technical problem of excessive dependence on operator experience and low efficiency caused by the manual recovery of the twisting of the spreader by the operator in the prior art to a certain extent.
A third object of the present invention is to provide a harbour crane to solve, to some extent, the technical problem of the prior art that the manual resumption of spreader twisting by an operator is required, which results in excessive dependence on operator experience and inefficiency.
In order to achieve the above object, the present invention provides the following technical solutions;
based on the first purpose, the sling anti-twisting device provided by the invention comprises a driving component, a transmission component and a fixing component, wherein the fixing component is arranged on the transmission component and is used for fixedly connecting a steel wire rope component of a sling;
the driving assembly can drive the transmission assembly to perform reciprocating translation along a first direction, so that the fixing assembly pulls the steel wire rope assembly along the first direction.
In any of the above solutions, optionally, the driving assembly includes a motor, and the transmission assembly includes a gear and a rack that are engaged with each other;
the motor is connected with the gear and can drive the gear to rotate, the fixing assembly is arranged on the rack, and the tooth profile of the rack extends along the first direction.
In any of the above technical solutions, optionally, the driving assembly further includes a speed reducer and a brake;
a driving shaft of the speed reducer is connected with the motor, and an output shaft of the speed reducer is coaxially connected with the gear;
the brake is connected with the motor and can brake the motor.
In any of the above technical solutions, optionally, the fixing assembly includes a base fixedly connected to the rack, and at least one wire rope clamp sequentially disposed on the base along the first direction, and an axis of a through hole of the at least one wire rope clamp extends along the first direction;
the motor the reduction gear with the integrated setting of stopper to form trinity speed reducer.
In any of the above technical solutions, optionally, the base and the rack are integrally formed;
the steel wire rope clamp is detachably connected with the base through a fastener;
the fixed component further comprises a sliding rail extending along the first direction, and the base is in a sliding block shape matched with the sliding rail, so that the base can move back and forth along the sliding rail.
In any of the above technical solutions, optionally, the number of the racks and the number of the fixing assemblies are two, the two fixing assemblies are disposed on the two racks in a one-to-one correspondence, and the two racks are disposed on two sides of the gear in a mutually facing manner.
Based on the second purpose, the hoisting winding system provided by the invention comprises the sling torsion prevention device provided by any one of the technical schemes.
In any one of the above technical solutions, optionally, the hoisting winding system includes a spreader, a first wire rope, a second wire rope, four pulley blocks, and the spreader anti-twisting device in any one of the above technical solutions;
the first steel wire rope is fixedly connected with a first fixing component of the sling anti-twisting device, and the second steel wire rope is fixedly connected with a second fixing component of the sling anti-twisting device;
each pulley block comprises a fixed pulley arranged on a trolley, a movable pulley arranged on the lifting appliance and a guide pulley arranged between the trolley and the fixed component;
the first fixing component is used as a boundary, the first steel wire rope comprises a first rope section and a second rope section, and the second fixing component is used as a boundary, the second steel wire rope comprises a third rope section and a fourth rope section;
one end of the first rope segment, which is far away from the first fixing component, winds around the first fixed pulley and the first movable pulley after extending along the second direction, and one end of the second rope segment, which is far away from the first fixing component, winds around the second guide pulley and winds around the second fixed pulley and the second movable pulley after extending along the second direction; the first movable pulley and the second movable pulley are arranged along the first direction, and the second direction and the first direction form an included angle;
one end of the third rope segment, which is far away from the second fixing component, winds around a third guide pulley to extend along the second direction and then winds around a third fixed pulley and a third movable pulley in a crossed manner, and one end of the fourth rope segment, which is far away from the second fixing component, winds around a fourth guide pulley to extend along the second direction and then winds around a fourth fixed pulley and a fourth movable pulley in a crossed manner; wherein the third movable pulley and the first movable pulley are arranged along the second direction, and the third movable pulley and the fourth movable pulley are arranged along the first direction.
Based on the third purpose, the port crane provided by the invention comprises the lifting winding system in any technical scheme.
By adopting the technical scheme, the invention has the beneficial effects that:
according to the anti-twisting device for the lifting appliance, the driving assembly can drive the transmission assembly to move back and forth along the first direction, so that the fixing assembly pulls the steel wire rope assembly back and forth along the first direction, the lifting appliance rotates to the box aligning position or counteracts the inertial torsion of the lifting appliance, and the lifting appliance is stabilized at the box aligning position. This device is prevented turning round by hoist need not the manual hoist wrench movement that resumes of operating personnel on the one hand, can make the hoist turn round fast and reach rapidly to the case position, practices thrift the manpower and improve case efficiency to improve the handling efficiency of bank bridge, be particularly suitable for the initiative of automatic bank bridge to prevent turning round, on the other hand can eliminate the inertial wrench movement of hoist, avoids "hitting the case" occurence of failure, and then avoids the hoist wrench movement aggravation. In addition, the recovery accuracy and speed of the twisting of the spreader can be adjusted by the driving amplitude and speed of the driving assembly, independent of the experience of the operator.
The lifting winding system provided by the invention comprises the sling anti-twisting device, so that all the beneficial effects of the sling anti-twisting device can be realized.
The port crane provided by the invention comprises the lifting and winding system, so that all beneficial effects of the lifting and winding system can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a spreader torsion device according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
fig. 4 is a schematic structural diagram of a hoisting winding system provided in a second embodiment of the present invention.
Icon: 1-a sling anti-twisting device; 10-an electric motor; 11-a transmission assembly; 110-a gear; 111-a first rack; 112-a second rack; 12-a first fixation assembly; 120-a base; 121-wire rope clamps; 13-a second fixation assembly; 14-a slide rail; 2, lifting and winding the system; 20-a first wire rope; 200-a first rope segment; 201-a second rope segment; 21-a second wire rope; 210-a third rope segment; 211-a fourth rope segment; 220-a first guide pulley; 221-a first fixed pulley; 222-a first movable sheave; 230-a second guide pulley; 231-a second fixed pulley; 232-a second movable pulley; 240-a third guide pulley; 241-a third fixed pulley; 242 — a third movable sheave; 250-a fourth guide pulley; 251-a fourth fixed pulley; 252-a fourth movable sheave; 26-a spreader.
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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1 to 3, the present embodiment provides a spreader anti-twisting device; fig. 1 is a schematic structural diagram of a spreader torsion preventing device provided by the present embodiment, in which a first direction is shown by a, and a second direction is shown by b; FIG. 2 is an enlarged view of a portion of FIG. 1 at A; fig. 3 is a partial enlarged view of fig. 2 at B.
The lifting appliance torsion preventing device provided by the embodiment is used for a lifting winding system.
Referring to fig. 1 to 3 in combination with fig. 4, the spreader anti-twisting device 1 provided by the present embodiment includes a driving assembly, a transmission assembly 11 and a fixing assembly.
The fixing component is arranged on the transmission component 11 and is used for fixedly connecting a steel wire rope component of a lifting appliance 26; the drive assembly can drive transmission assembly 11 and reciprocate the translation along first direction, because fixed subassembly and transmission assembly 11 relatively fixed, so can make fixed subassembly follow first direction reciprocating pull wire rope subassembly.
The fixed component is fixedly connected with the middle of the steel wire rope component, and the two ends of the steel wire rope component are both connected with the lifting appliance 26, so that the lifting appliance 26 is pulled through the steel wire rope to offset the twisting tendency and the twisting movement. Specifically, when the driving assembly drives the transmission assembly 11 to translate along the positive direction of the first direction, the fixing assembly pulls the wire rope assembly along the positive direction of the first direction, and then the wire rope assembly pulls the spreader 26 in the counterclockwise direction, so that the spreader 26 rotates to the box aligning position or counteracts the clockwise inertial torsion to stabilize the spreader 26 at the box aligning position. When the driving assembly drives the transmission assembly 11 to translate along the opposite direction of the first direction, the fixing assembly pulls the steel wire rope assembly along the opposite direction of the first direction, and then the steel wire rope assembly pulls the lifting appliance 26 clockwise, so that the lifting appliance 26 rotates to the box aligning position or counteracts the counterclockwise inertial torsion to stabilize the lifting appliance 26 at the box aligning position.
Wherein, the lifting appliance 26 is rotated to the box aligning position, so that the active torsion is realized through the lifting appliance torsion-proof device 1 to rapidly align the box; the sling 26 is offset from the inertial torsion, so that the passive torsion prevention is realized through the sling torsion prevention device 1, and the aggravation of the inertial torsion of the sling 26 is avoided.
In the device 1 for preventing twisting of a spreader in this embodiment, the driving component can drive the transmission component 11 to perform reciprocating translation along the first direction, so that the fixing component pulls the steel wire rope component along the first direction, thereby rotating the spreader 26 to the box aligning position or offsetting the inertial twisting of the spreader 26 and stabilizing the spreader 26 at the box aligning position. This device 1 is prevented turning round by hoist need not the manual hoist 26 wrench movement of resuming of operating personnel on the one hand, can make hoist 26 turn round fast and reach rapidly to the case position, practices thrift the manpower and improves case efficiency to improve the handling efficiency of bank bridge, be particularly suitable for the initiative of automatic bank bridge to prevent turning round, on the other hand can eliminate hoist 26's inertia wrench movement, avoids "bumping into case" occurence of failure, and then avoids hoist 26 wrench movement aggravation. Furthermore, the accuracy and speed of recovery from twisting of the spreader 26 can be adjusted by the drive amplitude and speed of the drive assembly, independent of the operator's experience.
Adopt to set up in the multi-functional hydraulic pressure of bank bridge afterbody to prevent hanging storehouse and vert the device and drive and play to rise wire rope to drive the technical scheme that the hoist made the action of verting, it is bulky to have hydraulic means, and the structure is complicated, and the speed of verting is relatively slower, and hydraulic power unit and pipeline easily take place the technical problem of oil leak.
In an alternative of this embodiment, the drive assembly comprises an electric motor 10 and the transmission assembly 11 comprises a gear 110 and a rack that mesh.
On the first hand, the sling anti-torsion device 1 is driven by the motor 10, the driving speed of the sling anti-torsion device is tens of times that of hydraulic driving, the sling 26 can quickly offset inertial torsion, the box position is quickly reached, the loading and unloading efficiency of a shore bridge is improved, and the automation degree of the shore bridge anti-torsion is improved. In a second aspect, the motor 10 is connected to a gear 110 and is capable of driving the gear 110 to rotate, and the fixing assembly is provided to a rack, the tooth profile of which extends in a first direction. The gear 110 is adopted for rack transmission, so that rotation is converted into translation along the first direction, and compared with hydraulic driving, the hydraulic driving device has the advantages of small occupied space and reliable and stable transmission. In the third aspect, the motor 10 is in transmission fit with the gear 110, so that the structure is simple, the cost can be reduced, and the control program can be simplified. That is, the sling anti-twisting device using the motor 10 as a power element has the advantages of small volume, stability, reliability, simple control and low cost.
In an alternative of this embodiment, the drive assembly further comprises a retarder and a brake.
The drive shaft of the reducer is connected to the motor 10, and the output shaft of the reducer is coaxially connected to the gear 110. This device 1 is prevented turning round by hoist can realize the pulling to wire rope's many grades of pulling forces, many grades of speeds through setting up the reduction gear, and then can match suitable pulling force and speed according to the condition of turning round of hoist 26 to make the rapidity and the stability of the anti-turning round of hoist 26 move reach the optimization.
The brake is connected to the motor 10 and is capable of braking the motor 10. The lifting appliance torsion prevention device 1 can brake the motor 10 at any time according to working conditions through the brake so as to meet the requirements of temporary stop or emergency stop.
In an alternative of this embodiment, the motor 10, the reducer and the brake are integrated to form a three-in-one reducer with smooth operation, low noise and long service life.
In an alternative of this embodiment, the fixing assembly includes a base 120 fixedly connected with the rack and at least one wire rope clamp 121 sequentially disposed on the base 120 along a first direction, and an axis of a through hole of the at least one wire rope clamp 121 extends along the first direction. Wherein, wire rope can wear to locate in the through-hole of wire rope clamp 121 to the clamping action through wire rope clamp 121 makes wire rope's middle part and base 120 fixed connection, so that wire rope can with fixed subassembly along the synchronous translation of first direction.
Optionally, the number of wire rope clamps 121 is one or more. The wire rope clamp 121 may be an existing wire rope clamp 121, and is not described herein.
Alternatively, the axes of the through holes of the plurality of wire rope clamps 121 are all located on a straight line extending in the first direction.
In an alternative of this embodiment, the fixing assembly further includes a slide rail 14 extending along the first direction, and the base 120 is in a slide block shape adapted to the slide rail 14, so that the base 120 can move back and forth along the slide rail 14. Through the cooperation between slide rail 14 and base 120, can provide the direction for the pulling of fixed subassembly to the wire rope subassembly, and then improve the stability of wire rope subassembly motion and this hoist anti-twist device 1's anti-twist efficiency.
In an alternative of this embodiment, as shown in fig. 3, the base 120 is integrally formed with the first rack 111, which is beneficial to improve the synchronization performance of the base 120 with the translation of the first rack 111. The second rack 112 is similar to the base 120.
The wire rope clamp 121 and the base 120 are detachably connected through a fastener, on one hand, the clamping degree of the wire rope clamp 121 on a wire rope can be adjusted through adjusting the fastening degree of the fastener, and on the other hand, the lifting appliance torsion preventing device 1 is convenient to detach and overhaul.
In an alternative of this embodiment, the number of the racks and the fixing assemblies is two, the two fixing assemblies are disposed on the two racks in a one-to-one correspondence, and the two racks are disposed on two sides of the gear 110 facing each other.
Specifically, the two racks are a first rack 111 and a second rack 112, respectively, and correspondingly, the two fixing assemblies are a first fixing assembly 12 and a second fixing assembly 13, respectively. The first rack 111 and the second rack 112 are oppositely arranged on two sides of the gear 110, the first fixing component 12 is arranged on the first rack 111, the second fixing component 13 is arranged on the second rack 112, the steel wire rope component comprises a first steel wire rope 20 and a second steel wire rope 21, the first steel wire rope 20 is connected with the first fixing component 12, the first fixing component 12 is used as a boundary point, the first steel wire rope 20 comprises a first rope segment 200 and a second rope segment 201, the second steel wire rope 21 is connected with the second fixing component 13, the second fixing component 13 is used as a boundary point, and the second steel wire rope 21 comprises a third rope segment 210 and a fourth rope segment 211.
When the hanger 26 is inertially rotated clockwise, the motor 10 rotates clockwise to drive the first rack 111 and the second rack 112 to respectively translate along the opposite direction of the first direction through the gear 110, the first rack 111 drives the first steel wire rope 20 to translate along the forward direction of the first direction, the second rack 112 drives the second steel wire rope 21 to translate along the reverse direction of the second direction, and the first rope segment 200 and the fourth rope segment 211 are tensioned, so that the hanger 26 can rotate counterclockwise under the common pulling of the first rope segment 200 and the fourth rope segment 211. Meanwhile, the second rope segment 201 moves along with the first rope segment 200 and the third rope segment 210 moves along with the fourth rope segment 211, so that the stability of the counterclockwise rotation of the hanger 26 can be improved.
When the hanger 26 rotates counterclockwise due to inertia, the motor 10 rotates counterclockwise to drive the first rack 111 and the second rack 112 to translate along the opposite direction of the first direction through the gear 110, the first rack 111 drives the first steel wire rope 20 to translate along the reverse direction of the first direction, and the second rack 112 drives the second steel wire rope 21 to translate along the forward direction of the second direction, so that the hanger 26 rotates clockwise under the common pulling of the second rope segment 201 and the third rope segment 210. Meanwhile, the first rope segment 200 moves along with the second rope segment 201 and the fourth rope segment 211 moves along with the third rope segment 210, so that the clockwise rotation stability of the lifting appliance 26 can be improved.
Example two
The second embodiment provides a hoisting winding system, the second embodiment comprises the sling torsion-prevention device in the first embodiment, the technical features of the sling torsion-prevention device disclosed in the first embodiment are also applicable to the second embodiment, and the technical features of the sling torsion-prevention device disclosed in the first embodiment are not repeated.
Fig. 4 is a schematic structural diagram of the hoisting winding system provided in the embodiment, and an axonometric view is adopted for more clearly expressing the structure.
Referring to fig. 4 in combination with fig. 1 to 3, a hoisting winding system 2 provided by the present embodiment includes a spreader torsion preventing apparatus 1 provided by the first embodiment.
In an alternative of this embodiment, the hoisting winding system 2 includes a spreader 26, a first wire rope 20, a second wire rope 21, four pulley blocks and a spreader torsion preventing device 1; the first steel wire rope 20 is fixedly connected with the first fixing component 12 of the sling torsion-proof device 1, and the second steel wire rope 21 is fixedly connected with the second fixing component 13 of the sling torsion-proof device 1.
Each pulley block comprises a fixed pulley arranged on the trolley, a movable pulley arranged on the lifting appliance 26 and a guide pulley arranged between the trolley and the fixed component; the first steel cable 20 comprises a first rope portion 200 and a second rope portion 201, delimited by the first fixing element 12, and the second steel cable 21 comprises a third rope portion 210 and a fourth rope portion 211, delimited by the second fixing element 13.
The end of the first rope segment 200 away from the first fixing component 12 is wound around the first guide pulley 220 to extend along the second direction and then wound around the first fixed pulley 221 and the first movable pulley 222, and the end of the second rope segment 201 away from the first fixing component 12 is wound around the second guide pulley 230 to extend along the second direction and then wound around the second fixed pulley 231 and the second movable pulley 232; the first movable pulley 222 and the second movable pulley 232 are arranged along a first direction, and the second direction forms an included angle with the first direction.
An end of the third rope segment 210 far from the second fixing member 13 is wound around the third guide pulley 240 to extend in the second direction and then wound around the third fixed pulley 241 and the third movable pulley 242 in a crossing manner, and an end of the fourth rope segment 211 far from the second fixing member 13 is wound around the fourth guide pulley 250 to extend in the second direction and then wound around the fourth fixed pulley 251 and the fourth movable pulley 252 in a crossing manner; wherein the third movable pulley 242 and the first movable pulley 222 are arranged in the second direction, and the third movable pulley 242 and the fourth movable pulley 252 are arranged in the first direction.
When the hanger 26 undergoes clockwise inertial torsion, the first movable pulley 222 and the fourth movable pulley 252 are arranged diagonally, so that the counterclockwise torque generated by the pulling force applied to the first movable pulley 222 by the first rope segment 200 and the pulling force applied to the fourth movable pulley 252 by the fourth rope segment 211 can be maximized to efficiently counteract the trend or movement of the clockwise inertial torsion, that is, the first rope segment 200 and the fourth rope segment 211 pull the hanger upwards to generate a lateral turning force, and the second rope segment 201 and the third rope segment 210 generate a rope loosening effect, so that the counterclockwise turning of the hanger 26 is more stable.
When the hanger 26 has counterclockwise inertial torsion, the second movable pulley 232 and the third movable pulley 242 are arranged diagonally, so that the clockwise torque generated by the pulling force applied to the second movable pulley 232 by the second rope segment 201 and the pulling force applied to the third movable pulley 242 by the third rope segment 210 can be maximized to efficiently counteract the counterclockwise inertial torsion trend or movement, that is, the hanger is pulled upward by the second rope segment 201 and the third rope segment 210 to generate a lateral turning force, and the first rope segment 200 and the fourth rope segment 211 generate a rope loosening effect, so that the clockwise turning of the hanger 26 is more stable.
By making the second rope segment 201 and the fourth rope segment 211 in a cross-shaped arrangement, the stability of the turning of the spreader 26 can be further improved.
Optionally, the determination of the direction and magnitude of the inertial torsion of the spreader 26 is prior art and will not be described herein.
The hoisting winding system in the embodiment has the advantages of the sling torsion prevention device in the first embodiment, and the advantages of the sling torsion prevention device disclosed in the first embodiment are not described repeatedly herein.
EXAMPLE III
The third embodiment provides a port crane, the third embodiment comprises the lifting and winding system in the first embodiment, the technical features of the lifting and winding system disclosed in the first embodiment are also applicable to the third embodiment, and the technical features of the lifting and winding system disclosed in the first embodiment are not described repeatedly.
The port crane in this embodiment has the advantages of the hoisting and winding system in the second embodiment, and the advantages of the hoisting and winding system disclosed in the second embodiment are not described again here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (9)
1. The sling anti-twisting device is characterized by comprising a driving assembly, a transmission assembly and a fixing assembly, wherein the fixing assembly is arranged on the transmission assembly and is used for fixedly connecting a steel wire rope assembly of a sling;
the driving assembly can drive the transmission assembly to perform reciprocating translation along a first direction, so that the fixing assembly pulls the steel wire rope assembly along the first direction.
2. The spreader anti-torque device according to claim 1, wherein the driving assembly comprises an electric motor, and the transmission assembly comprises a meshed gear and a rack;
the motor is connected with the gear and can drive the gear to rotate, the fixing assembly is arranged on the rack, and the tooth profile of the rack extends along the first direction.
3. The spreader anti-twist device according to claim 2, wherein the driving assembly further comprises a decelerator and a brake;
a driving shaft of the speed reducer is connected with the motor, and an output shaft of the speed reducer is coaxially connected with the gear;
the brake is connected with the motor and can brake the motor.
4. The sling anti-torque device according to claim 3, wherein the fixing assembly comprises a base fixedly connected with the rack and at least one wire rope clamp sequentially arranged on the base along the first direction, and the axis of the through hole of at least one wire rope clamp extends along the first direction;
the motor the reduction gear with the integrated setting of stopper to form trinity speed reducer.
5. The spreader anti-twist device according to claim 4, wherein the base is integrally formed with the rack;
the steel wire rope clamp is detachably connected with the base through a fastener;
the fixed component further comprises a sliding rail extending along the first direction, and the base is in a sliding block shape matched with the sliding rail, so that the base can move back and forth along the sliding rail.
6. The sling anti-twisting device according to claim 4, wherein the number of the racks and the fixing assemblies is two, the two fixing assemblies are arranged on the two racks in a one-to-one correspondence, and the two racks are arranged on two sides of the gear in a mutually facing manner.
7. A hoist spooling system, comprising a spreader anti-twist device as claimed in any of claims 1 to 5.
8. A hoisting winding system, comprising a spreader, a first wire rope, a second wire rope, four pulley blocks and the spreader anti-twist device of claim 6;
the first steel wire rope is fixedly connected with a first fixing component of the sling anti-twisting device, and the second steel wire rope is fixedly connected with a second fixing component of the sling anti-twisting device;
each pulley block comprises a fixed pulley arranged on a trolley, a movable pulley arranged on the lifting appliance and a guide pulley arranged between the trolley and the fixed component;
the first fixing component is used as a boundary, the first steel wire rope comprises a first rope section and a second rope section, and the second fixing component is used as a boundary, the second steel wire rope comprises a third rope section and a fourth rope section;
one end of the first rope segment, which is far away from the first fixing component, winds around the first fixed pulley and the first movable pulley after extending along the second direction, and one end of the second rope segment, which is far away from the first fixing component, winds around the second guide pulley and winds around the second fixed pulley and the second movable pulley after extending along the second direction; the first movable pulley and the second movable pulley are arranged along the first direction, and the second direction and the first direction form an included angle;
one end of the third rope segment, which is far away from the second fixing component, winds around a third guide pulley to extend along the second direction and then winds around a third fixed pulley and a third movable pulley in a crossed manner, and one end of the fourth rope segment, which is far away from the second fixing component, winds around a fourth guide pulley to extend along the second direction and then winds around a fourth fixed pulley and a fourth movable pulley in a crossed manner; wherein the third movable pulley and the first movable pulley are arranged along the second direction, and the third movable pulley and the fourth movable pulley are arranged along the first direction.
9. A port crane comprising a hoisting and winding system according to claim 7 or 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010669817.3A CN111747303A (en) | 2020-07-13 | 2020-07-13 | Lifting appliance anti-twisting device, lifting and winding system and port crane |
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| CN202010669817.3A CN111747303A (en) | 2020-07-13 | 2020-07-13 | Lifting appliance anti-twisting device, lifting and winding system and port crane |
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| CN111747303A true CN111747303A (en) | 2020-10-09 |
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| CN117326443A (en) * | 2023-11-13 | 2024-01-02 | 佳木斯大学 | Wind driven generator installation loading attachment |
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Application publication date: 20201009 |