CN117699670A - Component gantry crane and fine adjustment balance control method thereof - Google Patents
Component gantry crane and fine adjustment balance control method thereof Download PDFInfo
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- CN117699670A CN117699670A CN202311754685.4A CN202311754685A CN117699670A CN 117699670 A CN117699670 A CN 117699670A CN 202311754685 A CN202311754685 A CN 202311754685A CN 117699670 A CN117699670 A CN 117699670A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000013519 translation Methods 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000010720 hydraulic oil Substances 0.000 claims description 24
- 230000005484 gravity Effects 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 230000036544 posture Effects 0.000 claims description 6
- 238000003491 array Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 14
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 8
- 238000011900 installation process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 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
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
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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
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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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
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
According to the component gantry crane and the fine adjustment balance control method thereof, the fine adjustment device is used for realizing component high-precision displacement adjustment so as to improve hoisting precision, engineering cost is correspondingly reduced, controllable stress of a lifting rope is ensured, and safety performance of assembly operation is improved on the premise of improving construction efficiency, so that the component gantry crane has important popularization value for installation of large subway stations. The component gantry crane comprises a gantry, two groups of omnibearing fine-adjustable crane trolley devices are movably arranged at the top of the gantry, the two groups of omnibearing fine-adjustable crane trolley devices respectively vertically suspend an adjustable balance sling, the adjustable balance sling is vertically arranged on a cross beam, 4 groups of sling force adjusting devices are arranged at the side of the cross beam, and a lifting rope suspends a prefabricated component; the omnibearing fine-adjustable lifting trolley device comprises an upper trolley lifting part and an upper trolley translation mechanism which are borne on a lower trolley running device; the operation between the upper layer trolley translation mechanism and the lower layer trolley operation device is vertical in the horizontal direction.
Description
Technical Field
The invention relates to a gantry crane for carrying out hoisting construction on oversized special-shaped components and a fine adjustment balance control method thereof, belonging to the fields of rail transit and mechanical design.
Background
The existing gantry crane is conventional equipment applied to hoisting large prefabricated parts, and along with the rapid development of domestic rail transit technology, subway stations with assembly type structural design and construction methods are widely applied.
Because the assembled station components are usually oversized special-shaped components, the positions of the components are required to be strictly limited in the field installation process, the assembly precision is correspondingly extremely high, the traditional gantry crane is easy to have low precision in the assembly and hoisting process, on one hand, a large number of field operators are required to be equipped, a large amount of manpower and material resource is required to be consumed in manual correction, and the overall construction efficiency is lower; on the other hand, the ultra-large special-shaped component needs to accurately adjust the tension value of the lifting rope according to the design data of the lifting point stress during lifting so as to realize stable lifting and avoid the stress damage of the component, but the lifting using the gantry crane is difficult to adjust the lifting rope stress in the prior art, and is difficult to meet complex site construction conditions in terms of construction safety and stability.
The patent application No. CN202110610248.X is named as an adjustable lifting appliance for mounting stress state of top plate of assembled subway station and application thereof, wherein the lifting hooks adopt hydraulic lifting hooks which can be controlled independently, and each lifting hook is controlled to be kept under a set lifting weight so as to realize balanced lifting of the top plate component. The patent discloses a monitoring means to lifting rope atress, finely tunes assembled station high vault board opening size through control lifting hook atress, but still can't realize that the gantry crane lifts by crane the accuracy and the flexibility control of large-scale component, and the lifting hook directly detects the influence of factors such as lifting rope atress receives wind load moreover, the unstable condition of detection atress numerical value easily appears, still has obvious technical short board in the aspect of the hoist and mount security.
To sum up, the actual construction installation precision of the prior art is lower, the stress of the lifting hook is unstable and can not be accurately detected, the stress of the lifting rope is timely improved, the precision is required to be adjusted by means of manpower when the subway station component with higher precision is assembled, and the construction safety and the economical efficiency can not be guaranteed.
In view of this, the present patent application is specifically filed.
Disclosure of Invention
The component gantry crane and the fine adjustment balance control method thereof provided by the invention aim to solve the problems in the prior art, and propose to realize high-precision displacement adjustment through the fine adjustment device so as to improve hoisting precision, thereby correspondingly reducing engineering cost on the premise of meeting the requirement of improving construction efficiency, further achieving the purposes of ensuring controllable stress of a lifting rope and improving safety performance of assembly operation, and having important popularization value for the technical design of large subway station installation.
In order to achieve the design purpose, the component gantry crane comprises a portal frame, two groups of omnibearing fine-tuning hoisting trolley devices are movably arranged at the top of the portal frame, the two groups of omnibearing fine-tuning hoisting trolley devices respectively vertically suspend an adjustable balance sling, the adjustable balance sling is vertically arranged on a cross beam, 4 groups of sling force adjusting devices are arranged at the side of the cross beam, and a hoisting rope suspends a prefabricated component; the omnibearing fine-adjustable lifting trolley device comprises an upper trolley lifting part and an upper trolley translation mechanism which are borne on a lower trolley running device;
the upper layer trolley translation mechanism runs on a first track arranged below the upper layer trolley translation mechanism through a first running mechanism at the bottom of the upper layer trolley translation mechanism, the lower layer trolley running device runs along the track at the top of the portal through a second running mechanism at the bottom of the lower layer trolley translation mechanism, and the running between the upper layer trolley translation mechanism and the lower layer trolley running device is vertical in the horizontal direction.
Further, the lifting part of the upper layer trolley comprises a bracket, a lifting operation motor, a speed reducer and an upper layer trolley pulley beam lifting fine-tuning device which is axially erected on the bracket and is driven to operate by the operation motor and the speed reducer.
Further, the upper trolley pulley beam lifting fine adjustment device comprises two groups of pulley beams which are oppositely arranged, a lifting fixed pulley block is erected between the two groups of pulley beams, a lifting hook is hung at the free end of the lifting fixed pulley block, the bottom of each group of pulley beams is vertically connected with a group of hydraulic oil tops, and the two groups of hydraulic oil tops are fixedly arranged on the support to jointly drive the lifting fixed pulley block to vertically lift.
Further, the upper layer trolley translation mechanism comprises a frame with a first travelling mechanism arranged at the bottom and a plurality of groups of side top oil cylinders fixedly connected to the lower layer trolley travelling mechanism, and driving ends of the plurality of groups of side top oil cylinders are symmetrically connected to two sides of the frame.
Further, the lower-layer trolley running mechanism comprises a lower-layer trolley bracket with a first track arranged at the top, and a second running mechanism driven to run by a servo speed reducing motor is arranged at the bottom of the lower-layer trolley bracket; under the drive of the servo speed reducing motor, the lower-layer trolley running mechanism runs along the direction parallel to the cross beam in the horizontal direction.
Further, the whole portal frame is of a double-beam structure, and each group of all-directional fine-tuning hanging trolley devices span and slide on rails on the tops of the double beams.
Further, the adjustable balance lifting appliance comprises a rotary support and lifting appliance force adjusting devices symmetrically arranged on the cross beam in arrays;
the lifting appliance force adjusting device comprises a force adjusting bracket, two groups of hydraulic cylinders, a jacking block, a pulley and a pulley bracket, wherein the force adjusting bracket is spanned and fixed on a beam, and the two groups of lifting ropes are used for lifting the prefabricated part through the pulley respectively;
the lifting block is integrated with the bearing in the middle of the pulley and is positioned outside the pulley bracket, the gravity sensor is positioned below the pulley bracket, the hydraulic cylinder is arranged below the gravity sensor, and the hydraulic cylinder drives the position of the lifting block to change, so that the height of the lifting rope is adjusted;
the two sides of the force adjusting bracket are respectively provided with a vertically distributed jacking adjusting groove, and the jacking block penetrates through and is accommodated in the jacking adjusting groove;
further, the top of the rotary support is symmetrically connected with two groups of lifting hooks of the omnibearing fine-adjustable lifting trolley device, the bottom of the rotary support is fixedly arranged at the horizontal center of the cross beam, and the rotary support is driven by a servo speed reducing motor to drive the cross beam to rotate at 360 degrees in the horizontal direction relative to the portal frame.
Based on the structural design for the component gantry crane, the application simultaneously provides the following component gantry crane fine adjustment balance control method: two groups of omnibearing fine-adjustable lifting trolley devices capable of simultaneously or independently adjusting the suspension postures of the prefabricated parts are arranged at the top of the portal frame, the two groups of omnibearing fine-adjustable lifting trolley devices vertically suspend the adjustable balance lifting device together, the adjustable balance lifting device is vertically arranged on the cross beam, 4 groups of lifting device force adjusting devices are arranged at the side of the cross beam, and the lifting ropes suspend the prefabricated parts;
the suspension posture includes a longitudinal direction in a horizontal direction, a lateral position, and a height position in a vertical direction;
the omnibearing fine-tuning hoisting trolley device runs along longitudinal and transverse tracks relative to the portal frame so as to adjust the hoisting position of the prefabricated part in the horizontal direction; when the prefabricated part reaches the installation station, each group of all-dimensional finely-adjustable lifting trolley device vertically adjusts the lifting height of the lifting hook through the top edge of hydraulic oil so as to finely adjust the vertical height of one end of the prefabricated part to realize accurate positioning;
the adjustable balance lifting appliance is arranged at the horizontal center of the cross beam, and can drive the cross beam to rotate in the horizontal direction so as to adjust the positioning of the prefabricated part;
the weight data borne by the lifting rope is monitored in real time through the gravity sensor, the position of the pulley support frame is supported by the hydraulic oil cylinder to change, so that the lifting block is driven to drive the lifting operation of the bearing at the middle part of the pulley, and the vertical length of the lifting rope is adjusted to finely adjust the actual suspension height of the prefabricated part, so that the load of the lifting rope is adjusted. Further, each stroke of the hydraulic oil jack vertical lifting is set to be not more than 2mm, and the total lifting stroke is set to be 100-150mm.
In summary, the component gantry crane and the fine adjustment balance control method thereof have the advantages that:
1. the method reduces the manual participation when hoisting the components, can effectively improve the component installation efficiency and the omnibearing and high-precision installation of the oversized prefabricated components, provides a convenient, reliable and applicable solution for the automatic and intelligent operation of the gantry crane for the construction of the assembled subway station, and has important popularization significance for the intelligent application of the gantry crane.
2. The application provides a high accuracy fine setting balancing component portal crane, has realized the fine setting control in vertical and horizontal direction and vertical play in-process when lifting through adopting the all-round fine setting to hang heavy dolly to keep lifting balance effectively, improved the lifting precision when lifting large-scale prefabricated component obviously, can replace artifical scene adjustment component position, lifting site operation's security and maneuverability are all higher.
3. The adjustable balance lifting appliance is adopted to monitor the stress condition of the lifting rope in a targeted and real-time manner, so that the lifting appliance can be adjusted and guaranteed to lift the component stably and safely in time, and is particularly suitable for construction of assembled subway stations with higher assembly precision requirements, high in construction efficiency and favorable for reducing engineering cost.
Drawings
FIG. 1 is a schematic view of the overall structure of a component gantry crane described herein;
FIG. 2 is a front view as shown in FIG. 1;
FIG. 3 is a schematic diagram of the structure of an omni-directional fine-tunable sling cart apparatus;
FIG. 4 is a side view as shown in FIG. 3;
FIG. 5 is a schematic structural view of an upper trolley pulley beam lifting fine adjustment device;
FIG. 6 is a front view as shown in FIG. 5;
FIG. 7 is a side view as in FIG. 5;
FIG. 8 is a view of the state of use of the spreader force adjustment device;
FIGS. 9-1 and 9-2 are schematic views of the construction and part of the spreader force adjustment device, respectively;
as shown in the above drawings, the omnibearing fine-adjustable lifting trolley device 1, the adjustable balance lifting appliance 2, the portal 3, the laser level 4, the beam 5, the lifting rope 6, the prefabricated part 7, the upper trolley lifting part 12, the upper trolley translation mechanism 13, the lower trolley operating device 14, the bracket 121, the upper trolley pulley beam lifting fine-adjustment device 122, the lifting operating motor and speed reducer 123, the pulley beam 1221, the hydraulic oil top 1222, the lifting hook 1223, the lifting fixed pulley block 1224, the first track 130, the first travelling mechanism 131, the side-lifting oil cylinder 133, the lower trolley bracket 141, the second travelling mechanism 142, the servo reducing motor 143, the slewing bearing 21, the servo reducing motor 211, the lifting appliance force adjusting device 22, the force adjusting bracket 220, the hydraulic oil cylinder 221, the gravity sensor 222, the lifting block 223, the lifting adjusting groove 224, the pulley 225 and the pulley bracket 226;
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, in which the technical solutions are clearly and completely described.
In the embodiment 1, as shown in fig. 1 to 9, the gantry crane comprises a gantry 3, two groups of movable omnibearing fine-tuning lifting trolley devices 1 are arranged at the top of the gantry 3, the two groups of omnibearing fine-tuning lifting trolley devices 1 respectively vertically suspend adjustable balance slings 2, the adjustable balance slings 2 are vertically arranged on a cross beam 5, 4 groups of sling force adjusting devices 22 are arranged on the side of the cross beam 5, and a suspension rope 6 thereof suspends a prefabricated part 7; the method comprises the steps of carrying out a first treatment on the surface of the
The omnibearing fine-adjustable lifting trolley device 1 comprises an upper trolley lifting part 12 and an upper trolley translation mechanism 13 which are borne on a lower trolley running device 14;
the upper trolley translation mechanism 13 runs on the first track 132 through the first travelling mechanism 131 at the bottom of the upper trolley translation mechanism;
the lower-layer trolley running device 14 runs along the track at the top of the portal frame 3 through a second running mechanism 142 at the bottom of the lower-layer trolley running device, and the running between the upper-layer trolley translation mechanism 13 and the lower-layer trolley running device 14 is vertical in the horizontal direction;
the upper layer trolley lifting part 12 comprises a bracket 121, a lifting operation motor and a speed reducer 123 which are arranged on the upper layer trolley translation mechanism 13, and an upper layer trolley pulley beam lifting fine adjustment device 122 which is axially erected on the bracket 121 and is driven to operate by the operation motor and the speed reducer 123;
the upper layer trolley pulley beam lifting fine adjustment device 122 comprises two groups of pulley beams 1221 which are oppositely arranged, a lifting fixed pulley block 1224 is arranged between the two groups of pulley beams 1221, a lifting hook 1223 is hung at the free end of the lifting fixed pulley block 1224, the bottom of each group of pulley beams 1221 is vertically connected with a group of hydraulic oil tops 1222, and the two groups of hydraulic oil tops 1222 are fixedly arranged on the bracket 121 to jointly drive the lifting fixed pulley block 1224 to vertically lift;
through the output of the vertical driving force of the hydraulic oil top 1222, the lifting hook 1223 can be driven to lift (through the adjustable balance lifting appliance 2) to adjust the vertical height and position of one end of the prefabricated part 7, when the hydraulic oil top 1222 of the two groups of all-dimensional fine-adjustable lifting trolley device 1 is lifted and regulated at the same time, the lifting fine adjustment in the lifting process can be realized even if the prefabricated part 7 belongs to an oversized part, and finally the balance is realized; the fine adjustment belongs to a frequency conversion control means, namely when the prefabricated part 7 reaches an installation station, two groups of hydraulic oil tops 1222 are adopted to run and lift the lifting fixed pulley blocks 1224 so as to adjust the accurate positioning of the prefabricated part 7;
further, each vertical lifting stroke of the hydraulic oil top 1222 can be set to be not more than 2mm, and the total lifting stroke is set to be 100-150mm so as to optimize the adjustment action of accurate installation and positioning, thereby being suitable for the installation process of the assembly type subway station component tenons and tenons;
the upper layer trolley translation mechanism 13 comprises a frame 130 with a first travelling mechanism 131 installed at the bottom and driving ends of 4 groups of side top cylinders 133,4 groups of side top cylinders 133 fixedly connected to the lower layer trolley travelling mechanism 14, and the driving ends are symmetrically connected to two sides of the frame;
further, the operation of the upper trolley translation mechanism 13 is vertical to the cross beam 5 in the horizontal direction;
further, in order to improve the horizontal displacement adjustment precision of the upper-layer trolley translation mechanism 13, the stroke range of each group of side top oil cylinders 133 is 300-350mm;
the lower-layer trolley running mechanism 14 comprises a lower-layer trolley bracket 141 with a first track 130 arranged at the top, and a second running mechanism 142 driven to run by a servo speed reducing motor 143 is arranged at the bottom of the lower-layer trolley bracket 141; the lower-layer trolley operating mechanism 14 operates in a direction parallel to the cross beam 5 in the horizontal direction under the drive of the servo speed reducing motor 143;
further, the servo reducing motor 143 is controlled by a double-speed motor in a variable frequency manner so that the running distance of each inching of the lower-layer trolley running mechanism 14 is not more than 3mm during the slow variable frequency running;
the portal frame 3 is of a double-beam structure as a whole, and each group of all-directional fine-adjustable lifting trolley devices 1 span and slide on rails on the tops of the double beams;
further, two sets of laser levels 4 are symmetrically arranged at the lower part of the portal frame 3 to jointly check the horizontal state of the suspended prefabricated member 7;
furthermore, the two groups of omnibearing fine-tuning hoisting trolley devices 1 can be controlled by variable frequency speed regulation, and can be lifted simultaneously or independently;
the adjustable balance lifting appliance 2 is arranged at the horizontal center of the cross beam 5, and the top of the adjustable balance lifting appliance is symmetrically connected with two groups of lifting hooks 1223 of the omnibearing fine-adjustable lifting trolley device 1, and the adjustable balance lifting appliance is a multifunctional rotary lifting appliance which can rotate 360 degrees and has an anti-swing function; in particular, the method comprises the steps of,
the adjustable balance lifting appliance 2 comprises a rotary support 21 and 4 groups of lifting appliance force adjusting devices 22 symmetrically arranged on the cross beam 5; the bottom of the rotary support 21 is fixedly arranged at the horizontal center of the cross beam 5, and the rotary support 21 is driven by a servo speed reducing motor 211 to drive the cross beam 5 to rotate in 360 degrees in the horizontal direction relative to the portal frame 3;
the lifting appliance force adjusting device 22 comprises a force adjusting bracket 220, two groups of hydraulic cylinders 221, a jacking block 223, a pulley 225 and a pulley bracket 226 which are spanned and fixed on the cross beam 5, and the two groups of lifting ropes 6 respectively lift the component 7 through the pulley 225; the method comprises the steps of carrying out a first treatment on the surface of the
The jacking block 223 is integrated with a bearing in the middle of the pulley 225 and is positioned outside the pulley bracket 226, the gravity sensor 222 is positioned below the pulley bracket 226, the hydraulic cylinder 221 is arranged below the gravity sensor 222, and the hydraulic cylinder 221 drives the position of the jacking block 223 to change, so that the height of the lifting rope is adjusted;
the two sides of the force adjusting bracket 220 are respectively provided with a vertically distributed jacking adjusting groove 224, and the jacking block 223 penetrates through and is accommodated in the jacking adjusting groove 224;
the gravity sensor 222 is used for displaying weight data carried by each group of lifting ropes 6 in real time, and when the lifting ropes 6 (i.e. the lifting hooks 1223) are stressed to a preset value or the lifting ropes 6 are not stressed, the height of the jacking block 223 in the jacking adjusting groove 224 can be adjusted by the hydraulic cylinder 221 so as to finely adjust the actual suspension height of the prefabricated part 7, thereby adjusting the load of the lifting ropes 6.
Based on the structural design of the gantry crane, the application simultaneously provides the following gantry crane fine adjustment balance control method:
two groups of omnibearing fine-adjustable lifting trolley devices 1 capable of simultaneously or independently adjusting the suspension postures of the prefabricated parts 7 are arranged at the top of the portal frame 3, the two groups of omnibearing fine-adjustable lifting trolley devices 1 jointly vertically suspend the adjustable balance lifting appliance 2, the adjustable balance lifting appliance 2 is vertically arranged on the cross beam 5, 4 groups of lifting appliance force adjusting devices are arranged on the side of the cross beam 5, and the lifting ropes suspend the prefabricated parts 7;
the suspension posture includes a longitudinal direction in a horizontal direction, a lateral position, and a height position in a vertical direction;
the omnibearing fine-adjustable hoisting trolley device 1 runs along longitudinal and transverse tracks relative to the portal frame 3 so as to adjust the hoisting position of the prefabricated part 7 in the horizontal direction; when the prefabricated part 7 reaches the installation station, each group of all-dimensional finely-adjustable lifting trolley device 1 vertically adjusts the lifting height of the lifting hook 1223 through the hydraulic oil top 1222 so as to finely adjust the vertical height of one end of the prefabricated part 7 to realize accurate positioning;
the adjustable balance lifting appliance 2 is arranged at the horizontal center of the cross beam 5, and the adjustable balance lifting appliance 2 can drive the cross beam 5 to rotate in the horizontal direction so as to adjust the positioning of the prefabricated part 7;
the weight data borne by the lifting rope 6 is monitored in real time through the gravity sensor 222, the hydraulic oil cylinder 221 drives the jacking block 223 to drive the lifting operation of the bearing in the middle of the pulley 225, and the vertical length of the lifting rope 6 is adjusted to finely adjust the actual suspension height of the prefabricated part 7, so that the load of the lifting rope 6 is adjusted.
Further, each stroke of the hydraulic oil top 1222 vertically lifting is set to not more than 2mm, and the total lifting stroke is set to 100-150mm.
Further, the omnibearing fine-adjustable lifting trolley device 1 comprises an upper trolley lifting part 12 and an upper trolley translation mechanism 13, wherein the upper trolley lifting part 12 is borne on a lower trolley running device 14, and the upper trolley translation mechanism 13 and the lower trolley running device 14 run vertically in the horizontal direction, so that fine adjustment of the precast member 7 in the longitudinal and transverse directions is realized when the omnibearing fine-adjustable lifting trolley device 1 is lifted.
Further, the upper trolley lifting part 12 includes an upper trolley pulley beam lifting fine adjustment device 122 axially erected on the support 121 and driven to operate by the operation motor and the speed reducer 123, the upper trolley pulley beam lifting fine adjustment device 122 includes two sets of pulley beams 1221 arranged in opposite directions, a lifting fixed pulley block 1224 is erected between the two sets of pulley beams 1221, a lifting hook 1223 is suspended at the free end of the lifting fixed pulley block 1224, the bottom of each set of pulley beams 1221 is vertically connected with a set of hydraulic oil top 1222, and the two sets of hydraulic oil top 1222 are fixedly installed on the support 121 to jointly drive the lifting fixed pulley block 1224 to vertically lift; the lifting hook 1223 is driven to rise and fall through the output of the vertical driving force of the hydraulic oil top 1222 to adjust the vertical height and the position balance of one end of the prefabricated part 7, so that the lifting fine adjustment and the optimal assembly precision during lifting are realized, and the lifting fine adjustment and the optimal assembly precision are more suitable for concave-convex falcon parts needing to be accurately installed;
further, the upper layer trolley translation mechanism 13 comprises a frame and 4 groups of side top oil cylinders 133 with driving ends symmetrically connected to two sides of the frame, and the travel range of each group of side top oil cylinders 133 is 300-350mm;
further, the lower-layer trolley operating mechanism 14 operates in a direction parallel to the cross beam 5, and the operating distance of each inching of the lower-layer trolley operating mechanism 14 is not more than 3mm during slow variable frequency operation;
further, two sets of laser levels 4 are symmetrically arranged at the lower part of the portal frame 3 to jointly check the horizontal state of the suspended prefabricated member 7; the laser level meter 4 can be matched with the balance-adjustable lifting appliance 2 for adjusting the component level condition so as to jointly improve the intelligent level of the prefabricated component 7 during installation, reduce labor and correspondingly improve the installation accuracy;
further, the adjustable balance sling 2 is arranged at the horizontal center of the cross beam 5, and comprises a slewing bearing 21 and 4 groups of sling force adjusting devices 22 symmetrically arranged on the cross beam 5; the slewing bearing 21 is driven by a servo reducing motor 211 to drive the cross beam 5 to rotate in 360 degrees in the horizontal direction relative to the portal 3;
the lifting appliance force adjusting device 22 comprises a force adjusting bracket 220, two groups of hydraulic cylinders 221, a jacking block 223, a pulley 225 and a pulley bracket 226 which are spanned and fixed on the cross beam 5; the lifting rope 6 is erected in the force adjusting bracket 220 through a pulley 225; the jacking block 223 is integrated with the middle bearing of the pulley 225 and is positioned outside the pulley bracket 226, the gravity sensor 222 is positioned below the pulley bracket 226, the hydraulic cylinder 221 is arranged below the gravity sensor 222, and the position of the pulley bracket 226 is supported by the hydraulic cylinder 221 to change so as to drive the jacking block 223 to drive the lifting operation of the middle bearing of the pulley 225, thereby adjusting the height of the lifting rope;
the two sides of the force adjusting bracket 220 are respectively provided with a vertically distributed jacking adjusting groove 224, and the jacking block 223 penetrates through and is accommodated in the jacking adjusting groove 224;
when the load of the hoist rope 6 does not reach the expected value or the hoist rope 6 is not loaded, the height of the jacking block 223 in the jacking adjustment groove 224 is adjusted by the hydraulic cylinder 221 to fine-tune the actual suspension height of the prefabricated part 7, thereby adjusting the load of the hoist rope 6.
The gravity sensor 222 is arranged in the adjustable balance lifting appliance 2, so that the stress condition of the lifting appliance can be intelligently controlled, and the safety problem caused by uneven stress of the lifting rope 6 is avoided; meanwhile, construction safety is guaranteed by optimizing stress of the lifting appliance, and potential safety hazards caused by different pre-buried conditions of the lifting appliance are reduced; in addition, the stress of the lifting rope is finely adjusted, so that the lifting points of the components can be uniformly stressed according to the design requirement, and the balance stability of the components is ensured.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (10)
1. A component gantry crane, characterized in that: the device comprises a portal, wherein two groups of omnibearing fine-adjustable lifting trolley devices are movably arranged at the top of the portal, the two groups of omnibearing fine-adjustable lifting trolley devices respectively vertically suspend an adjustable balance sling, the adjustable balance sling is vertically arranged on a cross beam, 4 groups of sling force adjusting devices are arranged at the side of the cross beam, and a lifting rope thereof suspends a prefabricated member;
the omnibearing fine-adjustable lifting trolley device comprises an upper trolley lifting part and an upper trolley translation mechanism which are borne on a lower trolley running device; the upper layer trolley translation mechanism runs on a first track arranged below the upper layer trolley translation mechanism through a first running mechanism at the bottom of the upper layer trolley translation mechanism, the lower layer trolley running device runs along the track at the top of the portal through a second running mechanism at the bottom of the lower layer trolley translation mechanism, and the running between the upper layer trolley translation mechanism and the lower layer trolley running device is vertical in the horizontal direction.
2. The component gantry crane of claim 1, wherein: the upper layer trolley lifting part comprises a bracket, a lifting operation motor, a speed reducer and an upper layer trolley pulley beam lifting fine-tuning device, wherein the bracket is arranged on the upper layer trolley translation mechanism, and the upper layer trolley pulley beam lifting fine-tuning device is axially erected on the bracket and driven to operate by the operation motor and the speed reducer.
3. The component gantry crane of claim 2, wherein: the upper layer trolley pulley beam lifting fine adjustment device comprises two groups of pulley beams which are arranged in opposite directions, a lifting fixed pulley block is erected between the two groups of pulley beams, a lifting hook is hung at the free end of the lifting fixed pulley block, the bottom of each group of pulley beams is vertically connected with a group of hydraulic oil tops, and the two groups of hydraulic oil tops are fixedly arranged on a support to jointly drive the lifting fixed pulley block to vertically lift.
4. The component gantry crane of claim 1, wherein: the upper layer trolley translation mechanism comprises a frame with a first travelling mechanism arranged at the bottom and a plurality of groups of side top oil cylinders fixedly connected to the lower layer trolley travelling mechanism, wherein the driving ends of the plurality of groups of side top oil cylinders are symmetrically connected to two sides of the frame.
5. The component gantry crane of claim 1, wherein: the lower-layer trolley running mechanism comprises a lower-layer trolley bracket with a first track at the top, and a second running mechanism driven by a servo speed reducing motor to run is arranged at the bottom of the lower-layer trolley bracket; under the drive of the servo speed reducing motor, the lower-layer trolley running mechanism runs along the direction parallel to the cross beam in the horizontal direction.
6. The component gantry crane of claim 1, wherein: the portal frame is integrally of a double-beam structure, and each group of all-dimensional fine-tuning hanging trolley devices span and slide on rails on the tops of the double beams.
7. The component gantry crane of claim 1, wherein: the adjustable balance lifting appliance comprises a rotary support and lifting appliance force adjusting devices symmetrically arranged on the cross beam in arrays;
the lifting appliance force adjusting device comprises a force adjusting bracket, two groups of hydraulic cylinders, a jacking block, a pulley and a pulley bracket, wherein the force adjusting bracket is spanned and fixed on a beam, and the two groups of lifting ropes are used for lifting the prefabricated part through the pulley respectively;
the lifting block is integrated with the bearing in the middle of the pulley and is positioned outside the pulley bracket, the gravity sensor is positioned below the pulley bracket, the hydraulic cylinder is arranged below the gravity sensor, and the hydraulic cylinder drives the position of the lifting block to change, so that the height of the lifting rope is adjusted;
and the two sides of the force adjusting bracket are respectively provided with vertically distributed jacking adjusting grooves, and the jacking blocks penetrate through and are accommodated in the jacking adjusting grooves.
8. The component gantry crane of claim 7, wherein: the top of the rotary support is symmetrically connected with two groups of lifting hooks of the omnibearing fine-adjustable lifting trolley device, the bottom of the rotary support is fixedly arranged at the horizontal center of the cross beam, and the rotary support is driven by a servo gear motor to drive the cross beam to rotate 360 degrees in the horizontal direction relative to the portal frame.
9. The fine adjustment balance control method of the component gantry crane according to any one of claims 1 to 8, characterized in that: two groups of omnibearing fine-adjustable lifting trolley devices capable of simultaneously or independently adjusting the suspension postures of the prefabricated parts are arranged at the top of the portal frame, the two groups of omnibearing fine-adjustable lifting trolley devices vertically suspend the adjustable balance lifting appliance together, the adjustable balance lifting appliance is vertically arranged on the cross beam, 4 groups of lifting appliance force adjusting devices are arranged at the side of the cross beam, and the lifting ropes suspend the prefabricated parts;
the suspension posture includes a longitudinal direction in a horizontal direction, a lateral position, and a height position in a vertical direction;
the omnibearing fine-tuning hoisting trolley device runs along longitudinal and transverse tracks relative to the portal frame so as to adjust the hoisting position of the prefabricated part in the horizontal direction; when the prefabricated part reaches the installation station, each group of all-dimensional finely-adjustable lifting trolley device vertically adjusts the lifting height of the lifting hook through the top edge of hydraulic oil so as to finely adjust the vertical height of one end of the prefabricated part to realize accurate positioning;
the adjustable balance lifting appliance is arranged at the horizontal center of the cross beam, and can drive the cross beam to rotate in the horizontal direction so as to adjust the positioning of the prefabricated part;
the weight data borne by the lifting rope is monitored in real time through the gravity sensor, the position of the pulley support frame is supported by the hydraulic oil cylinder to change, so that the lifting block is driven to drive the lifting operation of the bearing at the middle part of the pulley, and the vertical length of the lifting rope is adjusted to finely adjust the actual suspension height of the prefabricated part, so that the load of the lifting rope is adjusted.
10. The component gantry crane fine tuning balance control method according to claim 9, characterized in that: and setting the vertical lifting stroke of the hydraulic oil jack to be not more than 2mm each time, and setting the total lifting stroke to be 100-150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311754685.4A CN117699670A (en) | 2023-12-20 | 2023-12-20 | Component gantry crane and fine adjustment balance control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311754685.4A CN117699670A (en) | 2023-12-20 | 2023-12-20 | Component gantry crane and fine adjustment balance control method thereof |
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| CN117699670A true CN117699670A (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311754685.4A Pending CN117699670A (en) | 2023-12-20 | 2023-12-20 | Component gantry crane and fine adjustment balance control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119320094A (en) * | 2024-12-18 | 2025-01-17 | 河南省大方重型机器有限公司 | Double-lifting system type crane trolley |
-
2023
- 2023-12-20 CN CN202311754685.4A patent/CN117699670A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119320094A (en) * | 2024-12-18 | 2025-01-17 | 河南省大方重型机器有限公司 | Double-lifting system type crane trolley |
| CN119320094B (en) * | 2024-12-18 | 2025-03-04 | 河南省大方重型机器有限公司 | Double-lifting system type crane trolley |
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