CN111232827A - Gantry crane with high stability for bridge construction - Google Patents

Gantry crane with high stability for bridge construction Download PDF

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Publication number
CN111232827A
CN111232827A CN202010092384.XA CN202010092384A CN111232827A CN 111232827 A CN111232827 A CN 111232827A CN 202010092384 A CN202010092384 A CN 202010092384A CN 111232827 A CN111232827 A CN 111232827A
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CN
China
Prior art keywords
lifting
sliding
block
motor
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010092384.XA
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Chinese (zh)
Inventor
曹燕红
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Guangzhou Jinghai Technology Co ltd
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Guangzhou Jinghai Technology Co ltd
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Application filed by Guangzhou Jinghai Technology Co ltd filed Critical Guangzhou Jinghai Technology Co ltd
Priority to CN202010092384.XA priority Critical patent/CN111232827A/en
Publication of CN111232827A publication Critical patent/CN111232827A/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-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
    • B66C1/10Load-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
    • B66C1/22Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34Crane hooks
    • B66C1/36Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00Trolleys or crabs, e.g. operating above runways
    • B66C11/02Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
    • B66C11/04Underhung trolleys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00Trolleys or crabs, e.g. operating above runways
    • B66C11/16Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • B66C11/20Arrangements, e.g. comprising differential gears, enabling simultaneous or selective operation of travelling and hoisting gear; Arrangements using the same rope or cable for both travelling and hoisting, e.g. in Temperley cranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00Cranes
    • B66C2700/01General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
    • B66C2700/012Trolleys or runways

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

The invention relates to a gantry crane with high stability for bridge construction, which comprises a beam, a translation block, a processor, a lifting mechanism, a translation mechanism, a flat plate, a lifting hook, a connecting mechanism and two struts, wherein the lifting mechanism comprises a driving assembly and four lifting assemblies, each lifting assembly comprises a driven bevel gear, a rotating shaft, a wire coil, a steel wire rope and two supporting units, the connecting mechanism comprises a lifting plate, two sliding rings and four connecting assemblies, each connecting assembly comprises a connecting block, a fastening unit and two rollers, the gantry crane with high stability for bridge construction realizes the safe lifting movement of the flat plate and the lifting hook by tightening or loosening the four steel wire ropes in the lifting mechanism, prevents goods from falling and causing safety accidents, and not only can the connecting blocks move along the axes of the struts through the connecting mechanism and can be fixed on the lifting plates so as to prevent the goods from shaking caused by wind blowing in the transportation process, the stability of transportation is guaranteed, and the practicality of equipment is improved.

Description

Gantry crane with high stability for bridge construction
Technical Field
The invention relates to the field of bridge construction, in particular to a gantry crane with high stability for bridge construction.
Background
The gantry crane is a deformation of a bridge crane, is called a gantry crane for short, is mainly used for loading and unloading outdoor goods yard, stock yard goods and bulk goods, has the characteristics of high field utilization rate, large operation range, wide application range, strong universality and the like, and is widely applied to port goods yards and bridge construction sites.
When carrying out transportation work, the current portal crane mainly relies on the lifting hook to catch on the goods, then tighten up or relax the rope by the hoist and drive lifting hook and goods and go up and down, and horizontal position through the adjustment hoist engine, the transportation position of adjustment goods, in the transportation, because equipment is in outdoor operation, receive the external environment influence, when wind-force is stronger, blow the goods on the lifting hook easily, make the goods take place to rock, the stability of transportation has been influenced, moreover, the portal crane relies on single wire rope to hoist the heavy object under couple and the couple, after wire rope is ageing, easy snap, make the goods fall subaerial, probably cause the incident when damaging the goods, cause current portal crane practicality to reduce.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the gantry crane with high stability for bridge construction is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a gantry crane with high stability for bridge construction comprises a cross beam, a translation block, a processor, a lifting mechanism, a translation mechanism, a flat plate, a lifting hook, a connecting mechanism and two pillars, wherein the cross beam is erected on the two pillars, the bottom end of each pillar is provided with a moving mechanism, the translation block is arranged below the cross beam through the translation mechanism, the lifting hook is arranged below the flat plate, the flat plate is arranged below the lifting mechanism through the connecting mechanism, the lifting mechanism is arranged below the translation block, the processor is fixed on the translation block, an antenna and a PLC are arranged in the processor, and the antenna is electrically connected with the PLC;
the lifting mechanism comprises a driving assembly and four lifting assemblies, the four lifting assemblies are uniformly distributed on the periphery of the driving assembly in the circumferential direction, each lifting assembly comprises a driven bevel gear, a rotating shaft, a wire coil, a steel wire rope and two supporting units, the driving assembly is in transmission connection with the driven bevel gear, the driven bevel gear is fixed at one end of the rotating shaft, the wire coil is coaxially fixed on the rotating shaft, one end of the steel wire rope is wound on the wire coil, the other end of the steel wire rope is connected with the connecting mechanism, the two supporting units are respectively positioned on two sides of the wire coil, and the rotating shaft is arranged below the translation block through the supporting units;
coupling mechanism includes lifter plate, two sliding rings and four coupling assembling, two sliding rings are fixed respectively at the both ends of lifter plate, the sliding ring cover is established on the pillar, and four coupling assembling are two liang of setting respectively in the both sides of lifter plate, and four coupling assembling are located the top of dull and stereotyped four corners department respectively, coupling assembling includes connecting block, fastening unit and two gyro wheels, the shape of connecting block is the U-shaped, the connecting block is connected with wire rope, the connecting block is fixed in dull and stereotyped top, the U-shaped opening of connecting block is towards the lifter plate, and two gyro wheels set up respectively at the both ends of connecting block, and two gyro wheels lean on respectively in the top and the below of lifter plate, the connecting block passes through fastening unit and is.
Preferably, in order to drive the horizontal movement of the translation block, the translation mechanism comprises a first motor, a bearing and a screw rod, the first motor and the bearing are both fixed below the cross beam, the translation block is abutted against the lower side of the cross beam, the first motor is electrically connected with the PLC, the first motor is in transmission connection with one end of the screw rod, the other end of the screw rod is arranged in the bearing, the translation block is sleeved on the screw rod, and a thread matched with the screw rod is arranged at the connection part of the translation block and the screw rod.
Preferably, in order to drive the driven bevel gear to rotate, the driving assembly comprises a second motor and a driving bevel gear, the second motor is fixed below the translation block and is electrically connected with the PLC, the second motor is in transmission connection with the driving bevel gear, and the driving bevel gear is meshed with the driven bevel gear.
Preferably, in order to support the rotating shaft to rotate, the supporting unit comprises a supporting ring, the supporting ring is fixed below the translation block, and the supporting ring is sleeved on the rotating shaft.
Preferably, in order to realize the stable rotation of the rotating shaft, clamping plates are arranged at two ends of the supporting ring and are fixed on the rotating shaft.
As preferred, in order to realize the fixed connection of connecting block and lifter plate, fastening unit includes sliding element, flexible unit, expansion plate and two fixed units, the both ends of expansion plate are connected with two fixed units respectively, the expansion plate is located the one side of keeping away from the lifter plate of connecting block, the expansion plate passes through flexible unit and is connected with sliding element, sliding element sets up on the lifter plate, fixed unit includes slide bar, sawtooth piece and rack, the top at the lifter plate is fixed to the rack, the sawtooth piece passes through the slide bar and is connected with the expansion plate.
Preferably, in order to control the movement of the expansion plate, the expansion unit comprises an air cylinder and an opening, the opening is arranged at the center of the connecting block, the air cylinder is electrically connected with the PLC, one end of a cylinder body of the air cylinder is connected with the lifting plate through a sliding unit, the cylinder body of the air cylinder is fixed on the inner side of the opening, and an air rod of the air cylinder is fixedly connected with the expansion plate.
Preferably, in order to facilitate the sliding of the telescopic unit, the sliding unit comprises a sliding groove and a sliding block, the sliding block is connected with the telescopic unit, the sliding block is connected with the sliding groove in a sliding manner, and the sliding groove is arranged on the lifting plate.
Preferably, the sliding groove is a dovetail groove to achieve stable sliding of the telescopic unit.
Preferably, in order to drive the pillar to move, the moving mechanism comprises a third motor, a lantern ring, a sliding rail and two moving wheels, the third motor is fixed at the bottom end of the pillar, the lantern ring is fixed below the third motor, the lantern ring is sleeved on the sliding rail, the two moving wheels are respectively positioned at two sides of the third motor, the third motor is in transmission connection with the moving wheels, and the third motor is electrically connected with the PLC.
The gantry crane with high stability for bridge construction has the advantages that safe lifting movement of the flat plate and the lifting hook is realized by tightening or loosening four steel wire ropes in the lifting mechanism, so that goods are prevented from falling off and causing safety accidents, and moreover, the connecting block can move along the axis of the pillar through the connecting mechanism and can be fixed on the lifting plate, so that the goods are prevented from shaking due to wind blowing in the transportation process, the transportation stability is ensured, and the practicability of equipment is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a gantry crane for bridge construction with high stability, which is disclosed by the invention;
FIG. 2 is a schematic structural diagram of a lifting mechanism of a gantry crane with high stability for bridge construction, which is disclosed by the invention;
FIG. 3 is a schematic structural diagram of a connecting mechanism of a gantry crane with high stability for bridge construction according to the present invention;
FIG. 4 is a schematic structural diagram of a moving mechanism of a gantry crane with high stability for bridge construction according to the present invention;
in the figure: 1. the device comprises a beam, 2. a translation block, 3. a processor, 4. a flat plate, 5. a lifting hook, 6. a support column, 7. a driven bevel gear, 8. a rotating shaft, 9. a wire coil, 10. a steel wire rope, 11. a lifting plate, 12. a sliding ring, 13. a connecting block, 14. a roller, 15. a first motor, 16. a bearing, 17. a screw rod, 18. a second motor, 19. a driving bevel gear, 20. a supporting ring, 21. a clamping plate, 22. a telescopic plate, 23. a sliding rod, 24. a sawtooth block, 25. a rack, 26. a cylinder, 27. a sliding groove, 28. a sliding block, 29. a third motor, 30. a lantern ring, 31. a sliding rail and 32. a moving wheel.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, a gantry crane with high stability for bridge construction includes a beam 1, a translation block 2, a processor 3, a lifting mechanism, a translation mechanism, a plate 4, a hook 5, a connection mechanism and two pillars 6, wherein the beam 1 is erected on the two pillars 6, the bottom end of each pillar 6 is provided with a moving mechanism, the translation block 2 is arranged below the beam 1 through the translation mechanism, the hook 5 is arranged below the plate 4, the plate 4 is arranged below the lifting mechanism through the connection mechanism, the lifting mechanism is arranged below the translation block 2, the processor 3 is fixed on the translation block 2, an antenna and a PLC are arranged in the processor 3, and the antenna is electrically connected with the PLC;
a PLC, i.e., a programmable logic controller, which employs a programmable memory for storing therein a program, executing instructions for user-oriented operations such as logic operation, sequence control, timing, counting, and arithmetic operation, and controlling various types of machines or production processes through digital or analog input/output, is essentially a computer dedicated for industrial control, has a hardware structure substantially the same as that of a microcomputer, and is generally used for data processing and instruction reception and output for realizing central control.
When an operator uses the gantry crane to construct a bridge, wireless signals can be generated to equipment through devices such as a mobile phone computer and the like, the wireless signals are received by the antenna and then transmitted to the PLC, and the PLC controls the equipment to operate according to the signals, so that a remote control function is realized. In this portal crane, utilize moving mechanism to drive pillar 6 and remove, the jack-up position of adjustment goes up and down, through two 6 fixed stay crossbeams 1 of pillar, the below of crossbeam 1 drives 2 horizontal migration of translation piece through translation mechanism, after the horizontal position of adjustment jack-up, drives dull and stereotyped 4 elevating movement by elevating system accessible coupling mechanism, hangs the goods on the couple to can realize the transportation function of goods.
As shown in fig. 2, the lifting mechanism includes a driving assembly and four lifting assemblies, the four lifting assemblies are uniformly distributed on the periphery of the driving assembly in the circumferential direction, the lifting assembly includes a driven bevel gear 7, a rotating shaft 8, a wire coil 9, a steel wire rope 10 and two supporting units, the driving assembly is in transmission connection with the driven bevel gear 7, the driven bevel gear 7 is fixed at one end of the rotating shaft 8, the wire coil 9 is coaxially fixed on the rotating shaft 8, one end of the steel wire rope 10 is wound on the wire coil 9, the other end of the steel wire rope 10 is connected with the connecting mechanism, the two supporting units are respectively located at two sides of the wire coil 9, and the rotating shaft 8 is arranged below the translation block 2 through the supporting;
when the lifting mechanism operates, the lifting mechanism is started by the driving assembly, four lifting assemblies are driven to operate simultaneously, rotating shafts 8 in the four lifting assemblies simultaneously stably rotate under the supporting effect of two supporting units, a wire coil 9 rotates, a steel wire rope 10 is tightened or loosened, a flat plate 4 and a lifting hook 5 below the connecting mechanism move up and down, transportation is facilitated, four lifting assemblies are adopted in the lifting mechanism to carry out transportation work simultaneously, when the steel wire rope 10 on the wire coil 9 in a certain lifting assembly is broken and damaged, the other three lifting work can still be carried out on goods, the goods are prevented from falling and being damaged, safety accidents are avoided, and the safety of the gantry crane is improved.
As shown in fig. 3, the connecting mechanism includes a lifting plate 11, two sliding rings 12 and four connecting assemblies, the two sliding rings 12 are respectively fixed at two ends of the lifting plate 11, the sliding rings 12 are sleeved on the supporting column 6, the four connecting assemblies are respectively arranged on two sides of the lifting plate 11 in pairs, the four connecting assemblies are respectively located above four corners of the flat plate 4, each connecting assembly includes a connecting block 13, a fastening unit and two rollers 14, the connecting block 13 is U-shaped, the connecting block 13 is connected with the steel wire rope 10, the connecting block 13 is fixed above the flat plate 4, a U-shaped opening of the connecting block 13 faces the lifting plate 11, the two rollers 14 are respectively arranged at two ends of the connecting block 13, the two rollers 14 are respectively abutted against the upper side and the lower side of the lifting plate 11, and the connecting block 13 is connected with the lifting plate 11.
In the connecting mechanism, the connecting block 13 is connected with the steel wire rope 10 and the flat plate 4, so that when the steel wire rope 10 is tightened or loosened, the flat plate 4 is driven to move up and down through the connecting block 13, the rollers 14 at the two ends of the connecting block 13 abut against the upper side and the lower side of the lifting plate 11, the lifting plate 11 and the connecting block 13 can move up and down synchronously, the two sliding rings 12 at the two ends of the lifting plate 11 are respectively sleeved on the two supporting columns 6, the moving direction of the lifting plate 11 is fixed, the lifting plate 11 is prevented from being deviated due to wind blowing, the connecting block 13 and the flat plate 4 are further prevented from being deviated due to wind blowing, the rollers 14 can roll along the surface of the lifting plate 11, the relative positions of the lifting plate 11 and the connecting block 13 are adjusted, after the adjustment is completed, the connection between the connecting block 13 and the lifting plate 11 is reinforced by the fastening, the stability of freight has been guaranteed, the practicality of equipment has been improved.
As shown in fig. 1, the translation mechanism includes a first motor 15, a bearing 16 and a screw rod 17, the first motor 15 and the bearing 16 are both fixed below the cross beam 1, the translation block 2 is abutted against the lower side of the cross beam 1, the first motor 15 is electrically connected with the PLC, the first motor 15 is in transmission connection with one end of the screw rod 17, the other end of the screw rod 17 is arranged in the bearing 16, the translation block 2 is sleeved on the screw rod 17, and a connection part of the translation block 2 and the screw rod 17 is provided with a thread matched with the screw rod 17.
The PLC controls the first motor 15 to be started, the screw rod 17 is driven to rotate under the supporting effect of the bearing 16, and the screw rod 17 acts on the translation block 2 through threads, so that the translation block 2 moves along the axis of the screw rod 17.
As shown in fig. 2, the driving assembly comprises a second motor 18 and a driving bevel gear 19, the second motor 18 is fixed below the translation block 2, the second motor 18 is electrically connected with the PLC, the second motor 18 is in transmission connection with the driving bevel gear 19, and the driving bevel gear 19 is meshed with the driven bevel gear 7.
The PLC controls the second motor 18 to start, drives the driving bevel gear 19 to rotate, and the driving bevel gear 19 acts on the four driven bevel gears 7 meshed with the driving bevel gear 19, so that the driven bevel gears 7 rotate.
Preferably, in order to support the rotating shaft 8 to rotate, the supporting unit includes a supporting ring 20, the supporting ring 20 is fixed below the translation block 2, and the supporting ring 20 is sleeved on the rotating shaft 8. The support spindle 8 is facilitated to rotate about the axis of the support ring 20 by means of the support ring 20 fixed below the translation block 2.
Preferably, in order to realize the stable rotation of the rotating shaft 8, the two ends of the supporting ring 20 are provided with clamping plates 21, and the clamping plates 21 are fixed on the rotating shaft 8. The support ring 20 is limited from two ends of the support ring 20 by two clamping plates 21 fixed on the rotating shaft 8, so that the rotating shaft 8 and the support ring 20 are prevented from sliding relatively, and the rotating shaft 8 is convenient to support and rotate stably.
As shown in fig. 3, the fastening unit includes sliding unit, telescopic unit, expansion plate 22 and two fixed units, the both ends of expansion plate 22 are connected with two fixed units respectively, expansion plate 22 is located the one side of keeping away from lifter plate 11 of connecting block 13, expansion plate 22 is connected with sliding unit through telescopic unit, sliding unit sets up on lifter plate 11, fixed unit includes slide bar 23, serration block 24 and rack 25, rack 25 fixes the top at lifter plate 11, serration block 24 is connected with expansion plate 22 through slide bar 23.
In the fastening unit, flexible unit accessible sliding unit slides along the side of lifter plate 11, and gyro wheel 14 rolls simultaneously, and after connecting block 13 adjustment position finishes, the flexible unit operation of PLC control drives expansion plate 22 and is close to connecting block 13 and removes for slide bar 23 drives sawtooth block 24 and supports and lean on sawtooth strip 25, thereby has fixed the position of connecting block 13, prevents that connecting block 13 from sliding along lifter plate 11 side.
Preferably, in order to control the movement of the expansion plate 22, the expansion unit includes a cylinder 26 and an opening, the opening is disposed at the center of the connection block 13, the cylinder 26 is electrically connected to the PLC, one end of a cylinder body of the cylinder 26 is connected to the lifting plate 11 through a sliding unit, the cylinder body of the cylinder 26 is fixed inside the opening, and an air rod of the cylinder 26 is fixedly connected to the expansion plate 22. The PLC controls the cylinder 26 to start, and can drive the air rod of the cylinder 26 to move, so that the telescopic plate 22 can move.
Preferably, in order to facilitate the sliding of the telescopic unit, the sliding unit includes a sliding slot 27 and a sliding block 28, the sliding block 28 is connected with the telescopic unit, the sliding block 28 is connected with the sliding slot 27 in a sliding manner, and the sliding slot 27 is disposed on the lifting plate 11. The sliding track of the slider 28 is fixed by the sliding groove 27 fixed on the lifting plate 11, so that the telescopic unit can slide along the side surface of the lifting plate 11.
Preferably, the sliding groove 27 is a dovetail groove to realize stable sliding of the telescopic unit. The slide groove 27 is a dovetail groove so that the slide block 28 cannot be separated from the slide groove 27, where the slide block 28 is connected with the telescopic unit, facilitating stable sliding of the telescopic unit and the connecting block 13.
As shown in fig. 4, the moving mechanism includes a third motor 29, a collar 30, a slide rail 31 and two moving wheels 32, the third motor 29 is fixed at the bottom end of the pillar 6, the collar 30 is fixed below the third motor 29, the collar 30 is sleeved on the slide rail 31, the two moving wheels 32 are respectively located at two sides of the third motor 29, the third motor 29 is in transmission connection with the moving wheels 32, and the third motor 29 is electrically connected with the PLC.
In the moving mechanism, the slide rail 31 is fixedly installed on the ground, the PLC controls the third motor 29 to be started, the moving wheels 32 on two sides can be driven to roll on the ground, the lantern ring 30 is driven to move along the slide rail 31, meanwhile, the third motor 29 is driven to move, therefore, the pillar 6 is moved, the hoisting position is adjusted, and the practicability of the equipment is improved.
This portal crane is in the transportation, act on four elevating system through drive assembly, realize dull and stereotyped 4's lifting movement, be convenient for transport goods, four elevating system are in the transportation, even there is the wire rope 10 fracture in an elevating system, in addition three still can continue to drive the freight, prevent that the goods from dropping damage and causing the incident, moreover, make connecting block 13 can drive lifter plate 11 and dull and stereotyped 4 synchronous lifting movement through coupling assembling, utilize fastening unit to consolidate being connected of connecting block 13 and lifter plate 11, the sliding ring 12 at lifter plate 11 both ends makes lifter plate 11 along the axis lifting movement of pillar 6, thus, prevent to receive the wind-blowing and take place the skew in the transportation, the stability of transportation has been guaranteed, the practicality of equipment has been improved.
Compared with the prior art, this a portal crane for stability of bridge construction is high tightens up or relaxs up through four wire rope 10 among the elevating system and realizes dull and stereotyped 4 and lifting hook 5's safe elevating movement, prevent that the goods from dropping and causing the incident, moreover, make connecting block 13 can remove along 6 axes of pillar through coupling mechanism, and can make connecting block 13 fix on lifter plate 11, prevent to receive the wind-blowing and rock in the freight transportation, guarantee the stability of transportation, the practicality of equipment has been improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The gantry crane is high in stability and used for bridge construction, and is characterized by comprising a cross beam (1), a translation block (2), a processor (3), a lifting mechanism, a translation mechanism, a flat plate (4), a lifting hook (5), a connecting mechanism and two support columns (6), wherein the cross beam (1) is erected on the two support columns (6), the bottom ends of the support columns (6) are provided with moving mechanisms, the translation block (2) is arranged below the cross beam (1) through the translation mechanism, the lifting hook (5) is arranged below the flat plate (4), the flat plate (4) is arranged below the lifting mechanism through the connecting mechanism, the lifting mechanism is arranged below the translation block (2), the processor (3) is fixed on the translation block (2), an antenna and a PLC are arranged in the processor (3), and the antenna is electrically connected with the PLC;
the lifting mechanism comprises a driving assembly and four lifting assemblies, the four lifting assemblies are circumferentially and uniformly distributed on the periphery of the driving assembly, each lifting assembly comprises a driven bevel gear (7), a rotating shaft (8), a wire coil (9), a steel wire rope (10) and two supporting units, the driving assembly is in transmission connection with the driven bevel gear (7), the driven bevel gear (7) is fixed at one end of the rotating shaft (8), the wire coil (9) is coaxially fixed on the rotating shaft (8), one end of the steel wire rope (10) is wound on the wire coil (9), the other end of the steel wire rope (10) is connected with the connecting mechanism, the two supporting units are respectively positioned on two sides of the wire coil (9), and the rotating shaft (8) is arranged below the translation block (2) through the supporting units;
the connecting mechanism comprises a lifting plate (11), two sliding rings (12) and four connecting assemblies, the two sliding rings (12) are respectively fixed at two ends of the lifting plate (11), the sliding rings (12) are sleeved on the supporting columns (6), the four connecting assemblies are respectively arranged on two sides of the lifting plate (11) in pairs, the four connecting assemblies are respectively positioned above four corners of the flat plate (4), each connecting assembly comprises a connecting block (13), a fastening unit and two rollers (14), the connecting block (13) is U-shaped, the connecting block (13) is connected with a steel wire rope (10), the connecting block (13) is fixed above the flat plate (4), a U-shaped opening of the connecting block (13) faces the lifting plate (11), the two rollers (14) are respectively arranged at two ends of the connecting block (13), and the two rollers (14) are respectively abutted against the upper part and the lower part of the lifting plate (11), the connecting block (13) is connected with the lifting plate (11) through a fastening unit.
2. The gantry crane with high stability for bridge construction according to claim 1, wherein the translation mechanism comprises a first motor (15), a bearing (16) and a screw rod (17), the first motor (15) and the bearing (16) are both fixed below the cross beam (1), the translation block (2) abuts against the lower side of the cross beam (1), the first motor (15) is electrically connected with the PLC, the first motor (15) is in transmission connection with one end of the screw rod (17), the other end of the screw rod (17) is arranged in the bearing (16), the translation block (2) is sleeved on the screw rod (17), and a screw thread matched with the screw rod (17) is arranged at the connection part of the translation block (2) and the screw rod (17).
3. The gantry crane with high stability for bridge construction according to claim 1, wherein the driving assembly comprises a second motor (18) and a driving bevel gear (19), the second motor (18) is fixed below the translation block (2), the second motor (18) is electrically connected with the PLC, the second motor (18) is in transmission connection with the driving bevel gear (19), and the driving bevel gear (19) is meshed with the driven bevel gear (7).
4. The gantry crane with high stability for bridge construction according to claim 1, wherein the support unit comprises a support ring (20), the support ring (20) is fixed below the translation block (2), and the support ring (20) is sleeved on the rotating shaft (8).
5. The gantry crane with high stability for bridge construction according to claim 4, wherein the support ring (20) is provided with clamping plates (21) at both ends, and the clamping plates (21) are fixed on the rotating shaft (8).
6. The gantry crane with high stability for bridge construction according to claim 1, wherein the fastening unit comprises a sliding unit, a telescopic plate (22) and two fixing units, two ends of the telescopic plate (22) are respectively connected with the two fixing units, the telescopic plate (22) is located on one side of the connecting block (13) far away from the lifting plate (11), the telescopic plate (22) is connected with the sliding unit through the telescopic unit, the sliding unit is arranged on the lifting plate (11), the fixing unit comprises a sliding rod (23), a sawtooth block (24) and a rack (25), the rack (25) is fixed above the lifting plate (11), and the sawtooth block (24) is connected with the telescopic plate (22) through the sliding rod (23).
7. The gantry crane with high stability for bridge construction according to claim 1, wherein the telescopic unit comprises a cylinder (26) and an opening, the opening is arranged at the center of the connecting block (13), the cylinder (26) is electrically connected with the PLC, one end of a cylinder body of the cylinder (26) is connected with the lifting plate (11) through a sliding unit, the cylinder body of the cylinder (26) is fixed at the inner side of the opening, and an air rod of the cylinder (26) is fixedly connected with the telescopic plate (22).
8. The gantry crane with high stability for bridge construction according to claim 7, wherein the sliding unit comprises a sliding chute (27) and a sliding block (28), the sliding block (28) is connected with the telescopic unit, the sliding block (28) is connected with the sliding chute (27) in a sliding manner, and the sliding chute (27) is arranged on the lifting plate (11).
9. The gantry crane with high stability for bridge construction according to claim 8, wherein the sliding groove (27) is a dovetail groove.
10. The gantry crane with high stability for bridge construction according to claim 1, wherein the moving mechanism comprises a third motor (29), a collar (30), a sliding rail (31) and two moving wheels (32), the third motor (29) is fixed at the bottom end of the pillar (6), the collar (30) is fixed below the third motor (29), the collar (30) is sleeved on the sliding rail (31), the two moving wheels (32) are respectively located at two sides of the third motor (29), the third motor (29) is in transmission connection with the moving wheels (32), and the third motor (29) is electrically connected with the PLC.
CN202010092384.XA 2020-02-14 2020-02-14 Gantry crane with high stability for bridge construction Withdrawn CN111232827A (en)

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CN112265907A (en) * 2020-11-22 2021-01-26 李闯 Portal frame device for mechanical automation processing
CN112551380A (en) * 2020-11-30 2021-03-26 浙江二十冶建设有限公司 Steel corridor hoisting method and equipment thereof
CN112694012A (en) * 2020-12-22 2021-04-23 孙淑华 Anti-swing tower crane for building construction
CN112919331A (en) * 2021-03-08 2021-06-08 海南科技职业大学 Hoisting accessory for mechanical engineering
CN113598111A (en) * 2021-09-01 2021-11-05 陵水晨海种业有限公司 Intelligent feeding device for marine fish culture
CN113896100A (en) * 2021-10-26 2022-01-07 胡丽敏 Lifting equipment for petroleum pipeline installation
CN114524370A (en) * 2022-03-15 2022-05-24 西南交通大学 Cargo loading and transporting device
CN114800361A (en) * 2022-04-22 2022-07-29 马书权 Lifting equipment capable of assisting in disassembling ceramic fiber module
CN116986479A (en) * 2023-09-27 2023-11-03 江苏卫华海洋重工有限公司 Portal crane for loading and unloading cargoes in cargo yard, stock yard and bulk cargo
CN117228544A (en) * 2023-11-15 2023-12-15 青岛力克川液压机械有限公司 Portal crane equipment based on hydraulic motor drive
CN112265907B (en) * 2020-11-22 2024-06-04 陕西嘉融精密机械科技有限公司 Portal frame device for mechanical automation processing

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CN112125143A (en) * 2020-09-23 2020-12-25 国网安徽省电力有限公司经济技术研究院 Multi-point type supporting and hoisting device for installation and construction of electric power iron tower
CN112265907A (en) * 2020-11-22 2021-01-26 李闯 Portal frame device for mechanical automation processing
CN112265907B (en) * 2020-11-22 2024-06-04 陕西嘉融精密机械科技有限公司 Portal frame device for mechanical automation processing
CN112551380A (en) * 2020-11-30 2021-03-26 浙江二十冶建设有限公司 Steel corridor hoisting method and equipment thereof
CN112694012A (en) * 2020-12-22 2021-04-23 孙淑华 Anti-swing tower crane for building construction
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CN113598111A (en) * 2021-09-01 2021-11-05 陵水晨海种业有限公司 Intelligent feeding device for marine fish culture
CN113896100A (en) * 2021-10-26 2022-01-07 胡丽敏 Lifting equipment for petroleum pipeline installation
CN114524370A (en) * 2022-03-15 2022-05-24 西南交通大学 Cargo loading and transporting device
CN114800361A (en) * 2022-04-22 2022-07-29 马书权 Lifting equipment capable of assisting in disassembling ceramic fiber module
CN114800361B (en) * 2022-04-22 2023-11-03 山西同力卡耐科技有限公司 Lifting device capable of assisting in disassembling ceramic fiber module
CN116986479A (en) * 2023-09-27 2023-11-03 江苏卫华海洋重工有限公司 Portal crane for loading and unloading cargoes in cargo yard, stock yard and bulk cargo
CN116986479B (en) * 2023-09-27 2023-12-22 江苏卫华海洋重工有限公司 Portal crane for loading and unloading cargoes in cargo yard, stock yard and bulk cargo
CN117228544A (en) * 2023-11-15 2023-12-15 青岛力克川液压机械有限公司 Portal crane equipment based on hydraulic motor drive
CN117228544B (en) * 2023-11-15 2024-02-20 青岛力克川液压机械有限公司 Portal crane equipment based on hydraulic motor drive

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Application publication date: 20200605