CN117088251B - Improved connecting structure and connecting piece for girder of gantry crane truss - Google Patents
Improved connecting structure and connecting piece for girder of gantry crane truss Download PDFInfo
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- CN117088251B CN117088251B CN202311351866.2A CN202311351866A CN117088251B CN 117088251 B CN117088251 B CN 117088251B CN 202311351866 A CN202311351866 A CN 202311351866A CN 117088251 B CN117088251 B CN 117088251B
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- 230000000670 limiting effect Effects 0.000 claims abstract description 67
- 238000003825 pressing Methods 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 30
- 238000009434 installation Methods 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention belongs to the technical field of bearing equipment, in particular to an improved connecting structure and a connecting piece of a girder of a gantry crane, which aim at the problem that the girder of the traditional gantry crane can only be cut and damaged when being disassembled. According to the invention, the rectangular limiting block moves to enter the rectangular hole of the transverse bearing rod, so that the effect of connection and fixation is achieved, and when the rectangular frame is disassembled, the rectangular rod at the end part of the rectangular limiting block can be separated from the transverse bearing rod through the operation of the servo motor, so that the whole frame is convenient to reuse, and the waste is reduced.
Description
Technical Field
The invention relates to the technical field of lifting equipment, in particular to an improved connecting structure and a connecting piece of a girder of a gantry crane truss.
Background
Gantry cranes are a variant of bridge cranes. In port, the method is mainly used for loading and unloading operations of outdoor goods yards, stock yards and bulk cargos. The metal structure of the utility model is like a door-shaped frame, two supporting legs are arranged under the bearing main beam, the walking device can walk on the track on the ground directly, and the two ends of the main beam can be provided with overhanging cantilever beams. The gantry crane has the characteristics of high field utilization rate, large operation range, wide application range, strong universality and the like, and is widely used in port cargo yards.
At present, most of truss girder connection modes of the existing gantry crane are connected through welding, and when the truss girder connection modes are dismantled, the truss girder connection modes are generally only dismantled through cutting, so that the crane frame cannot be used, waste is caused, and reutilization is not facilitated, and therefore an improved connection structure and an improved connection piece of the truss girder of the gantry crane are needed.
Disclosure of Invention
The improved connecting structure of the girder of the portal crane truss comprises two transverse bearing rods, wherein end rectangular rods are arranged on two sides between the two transverse bearing rods, rectangular holes are formed in two ends of one side between the two transverse bearing rods, clamping block plates are fixedly welded at two ends of the two end rectangular rods, a plurality of through holes are formed in two ends of one side between the tops of the two transverse bearing rods, limiting rods are arranged on inner walls of the through holes, the limiting rods penetrate through the tops of the clamping block plates, mounting holes are formed in grooves of the clamping block plates, limiting holes are formed in the middle of one side between the two end rectangular rods, plug-in bearing blocks are spliced on inner walls of the two limiting holes, limiting jacks are formed in non-adjacent sides of the bottoms of the two ends of the two plug-in bearing blocks, one end of each plug-in bearing block is fixedly welded with one lifting equipment mounting rod, two sides of the inner walls of the mounting holes are detachably provided with fixing mechanisms through bolts, one end between the bottoms of the inner walls of the mounting holes is provided with a pushing mechanism, the rear ends of the bottoms of the inner walls of the two limiting holes are provided with limiting mechanisms, and the rear ends of the two limiting holes are provided with limiting mechanisms which are provided with limiting holes.
Preferably, the fixing mechanism comprises two sliding rails, the two sliding rails are respectively fixed on two sides of the inner wall of the mounting hole, the same rectangular limiting block is arranged in the same mounting hole in a sliding manner, the rectangular limiting block can slide into the rectangular hole of the transverse bearing rod, the middle part of one end of the transverse bearing rod, far away from the rectangular limiting block, of the rectangular limiting block is provided with an inserting round hole, the bottoms of the inner walls of the mounting holes are fixedly provided with a bottom plate, and one side, close to the transverse bearing rod, of the top of the bottom plate is fixedly provided with a bearing base block in a welding manner.
Preferably, the inner walls of the plurality of mounting holes are far away from the middle part of one end of the transverse bearing rod, a round rod is fixedly welded, the round rod can be inserted into the inserting round hole of the rectangular limiting block in the same mounting hole, and the outer walls of the circumferences of the plurality of round rods are sleeved with the second springs.
Preferably, the pushing mechanism comprises two bases, the two bases are fixed at the top of the bottom plate, the two bases are detachably mounted with the same servo motor through bolts, the rear end of an output shaft of the servo motor is provided with a gear plate, a plurality of rack bars are arranged in the middle of the bottom of the rectangular limiting block, and the gear plate inside the same mounting hole is meshed with the rack bars.
Preferably, the front end middle part of handling equipment installation pole is opened there is the through-hole, and the inner wall grafting of through-hole has crooked carrier bar, and the both ends of crooked carrier bar are fixed in the top of two horizontal carrier bars, two the both sides of horizontal carrier bar bottom all are provided with the support column.
Preferably, the middle parts of the front ends and the rear ends of the tops of the two end rectangular rods are fixedly welded with connecting rods, and the other ends of the connecting rods are fixedly arranged on the tops of the transverse bearing rods.
Preferably, the sliding limiting mechanism comprises two sliding chute straight rods, the two sliding chute straight rods are fixed at the bottoms of the inner walls of the limiting holes, the tops of the two sliding chute straight rods are slidably provided with the same sliding seat, the tops of the sliding seats are fixedly welded with round plug-in columns, and the round plug-in columns can be plugged in limiting jacks of the plug-in bearing blocks.
A connecting piece, the top welded fastening of circular spliced pole has the connecting block, and the top welded fastening of connecting block has the inclined plane sliding block, and the top of inclined plane sliding block is the slope form, and open at the rear end middle part of circular spliced pole has the trepanning.
Preferably, sleeve shafts are welded and fixed at the bottoms of the rear ends of the inner walls of the limiting holes, the sleeve shafts can be inserted into sleeve holes of the round plug-in posts, and the first springs are sleeved on the outer circumferential walls of the sleeve shafts.
Preferably, the pressing mechanism comprises two pressing columns, the two pressing columns respectively penetrate through the top of the end rectangular rod, the bottom ends of the two pressing columns are fixedly welded with pressing inclined blocks, and the pressing inclined blocks are matched with the inclined surfaces of the inclined sliding blocks.
The beneficial effects of the invention are as follows:
1. according to the device, the transverse bearing rod, the end rectangular rod, the rectangular limiting block and other devices are arranged, the rectangular limiting block is driven by the servo motor to move during installation, and the rectangular limiting block enters the rectangular hole of the transverse bearing rod, so that the effect of connection and fixation is achieved, and during disassembly, the end rectangular rod and the transverse bearing rod can be separated through the servo motor operation, so that the whole frame can be reused, and waste is reduced.
2. The device provided by the invention is provided with the lifting equipment mounting rod, the plug-in bearing block, the circular plug-in column and other devices, when in use, the pressing column is pressed by a large force, the circular plug-in column is driven to be pressed down, the inclined surface of the descending pressing inclined block contacts with the inclined surface sliding block to be pushed to move on the straight rod of the chute, the spring is pushed to be plugged into the round hole of the plug-in bearing block to limit the plug-in bearing block, and the plug-in bearing block plugged into the limit hole can be detached by pressing when the device is detached, so that the damage of cutting to a shelf is avoided, and the shelf body is stored to the maximum extent.
3. The device is provided with the transverse bearing rods, the lifting equipment mounting rods and other devices, and the lifting equipment is mounted through the two transverse bearing rods and the lifting equipment mounting rods, so that the device has better bearing capacity and higher stability.
Drawings
Fig. 1 is a schematic diagram of a three-dimensional structure of an improved connection structure of a girder of a gantry crane truss;
FIG. 2 is a schematic perspective view of a clamping block plate of an improved connection structure of a girder of a gantry crane truss;
FIG. 3 is a schematic perspective view of an end rectangular bar of an improved connection structure for a girder of a gantry crane truss according to the present invention;
FIG. 4 is a schematic perspective view of a circular spliced pole of an improved connector of a girder of a gantry crane truss;
FIG. 5 is a schematic perspective view of an improved link ramp slider for a girder of a gantry crane in accordance with the present invention;
fig. 6 is a schematic perspective view of a rectangular limiting block with an improved connection structure for a girder of a gantry crane truss;
fig. 7 is a schematic bottom perspective view of a rectangular limiting block with an improved connection structure for a girder of a gantry crane truss;
fig. 8 is a schematic view of a part of a cross-sectional structure of a transverse load-bearing bar of an improved connection structure of a girder of a gantry crane truss according to the present invention.
In the figure: 1. a transverse load-bearing rod; 2. bending the carrier bar; 3. a lifting device mounting rod; 4. pressing the column; 5. splicing a bearing block; 6. a support column; 7. a clamping block plate; 8. a connecting rod; 9. an end rectangular bar; 10. a rectangular limiting block; 11. a bearing base block; 12. a rack bar; 13. a bottom plate; 14. a slide rail; 15. a circular plug-in column; 16. pressing the inclined block; 17. an inclined surface sliding block; 18. a first spring; 19. sleeving a shaft rod; 20. a straight rod of the chute; 21. a sliding seat; 22. a connecting block; 23. a base; 24. a servo motor; 26. a circular rod; 27. a second spring; 28. a mounting hole; 29. a gear plate; 30. a limiting hole; 31. and a limit rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-8, the improved connection structure of the girder of the portal crane truss comprises two transverse bearing rods 1, wherein two ends of the rectangular rods 9 are respectively arranged on two sides between the two transverse bearing rods 1, rectangular holes are respectively formed in two ends of one side between the two transverse bearing rods 1, clamping block plates 7 are respectively welded and fixed at two ends of the rectangular rods 9, a plurality of through holes are respectively formed in two ends of one side between the tops of the two transverse bearing rods 1, limiting rods 31 are respectively arranged on inner walls of the through holes, the limiting rods 31 respectively penetrate through the tops of the clamping block plates 7, mounting holes 28 are respectively formed in grooves of the clamping block plates 7, limiting holes 30 are respectively formed in the middle parts of one side between the rectangular rods 9 of the two ends, plug-in bearing blocks 5 are respectively plugged in inner walls of the two limiting holes 30, limiting jacks are respectively formed in non-adjacent sides of the bottoms of the two ends of the two plug-in bearing blocks 5, one end between two splicing bearing blocks 5 is welded and fixed with the same lifting equipment installation rod 3, a slidable lifting mechanism is installed at the bottom of the lifting equipment installation rod 3, two ends of the lifting mechanism are also slidably installed at the bottoms of two transverse bearing rods 1, fixing mechanisms are detachably installed on two sides of the inner wall of a plurality of installation holes 28 through bolts, a pushing mechanism is arranged at one end between the bottoms of the inner walls of the installation holes 28, sliding limiting mechanisms are arranged at the rear ends of the bottoms of the inner walls of two limiting holes 30, pressing holes are formed in the rear ends of the tops of the inner walls of the two limiting holes 30, pressing mechanisms are arranged at the inner walls of the pressing holes, when the lifting equipment is used and installed, two end rectangular rods 9 are installed between the two transverse bearing rods 1, the outer walls of the transverse bearing rods 1 are clamped through clamping block plates 7, meanwhile, the inner pushing mechanisms push the fixing mechanisms to move towards rectangular openings of the transverse bearing rods 1, connect it, when installing handling equipment installation pole 3, insert the spacing downthehole 30 of tip rectangular rod 9 between will pegging graft bearing block 5, carry out spacing to pegging graft bearing block 5 through sliding stop mechanism, prevent to drop, simultaneously when rectangular stopper 10 gets into the rectangular hole of horizontal bearing rod 1, can promote many gag lever posts 31 upward movement, pass fixture block board 7, can carry out spacing effect to fixture block board 7, prevent that fixture block board 7 from breaking away from horizontal bearing rod 1 outer wall.
Referring to fig. 2, fig. 3, fig. 6, fig. 7, the fixed establishment includes two slide rails 14, and two slide rails 14 are fixed in the both sides of mounting hole 28 inner wall respectively, two slide rails 14 slidable mounting have same rectangle stopper 10 in the same mounting hole 28, and rectangle stopper 10 slidable enters into the rectangle downthehole of horizontal bearing rod 1, the middle part that rectangle stopper 10 kept away from horizontal bearing rod 1 one end is opened there is the grafting round hole, the bottom of a plurality of mounting hole 28 inner walls all welded fastening has bottom plate 13, and the one side welded fastening that bottom plate 13 top is close to horizontal bearing rod 1 has bearing foundation block 11, rectangle stopper 10 can be in the inside of mounting hole 28, through installing on slide rail 14, can stretch out mounting hole 28 after receiving the impetus, and enter into inside the rectangular hole of horizontal bearing rod 1, reach spacing connection's effect, set up bearing foundation block 11 simultaneously in mounting hole 28, guarantee that rectangle stopper 10 is to its bearing when connecting.
Referring to fig. 6 and 7, the middle part of one end of the inner wall of the plurality of mounting holes 28 far away from the transverse bearing rod 1 is fixedly welded with a round rod 26, the round rod 26 can be inserted into the inserting round hole of the rectangular limiting block 10 in the same mounting hole 28, the second springs 27 are sleeved on the outer circumferential walls of the plurality of round rods 26, when the servo motor 24 is used, the rectangular limiting block 10 can be driven to move towards one end of the round rod 26, the round rod 26 can be inserted into the inserting round hole of the rectangular limiting block 10, meanwhile, the rectangular limiting block 10 can squeeze the second springs 27, and when the servo motor 24 is not used, the second springs 27 can be reacted with the rectangular limiting block 10.
Referring to fig. 6 and 7, the pushing mechanism includes two bases 23, and the two bases 23 are all fixed at the top of the bottom plate 13, the top of the two bases 23 is detachably mounted with the same servo motor 24 through bolts, and the rear end of the output shaft of the servo motor 24 is provided with a gear plate 29, the bottom middle parts of the rectangular limiting blocks 10 are all provided with a plurality of rack bars 12, and the gear plate 29 inside the same mounting hole 28 is mutually meshed with the rack bars 12, when being mounted or dismounted, the servo motor 24 can operate to drive the gear plate 29 to rotate, so as to mesh the rack bars 12, push the rectangular limiting blocks 10, and achieve the effect of mounting and inserting.
Referring to fig. 1, a through hole is formed in the middle of the front end of a lifting device installation rod 3, a bending bearing rod 2 is inserted into the inner wall of the through hole, two ends of the bending bearing rod 2 are fixed at the tops of two transverse bearing rods 1, support columns 6 are arranged on two sides of the bottoms of the two transverse bearing rods 1, a lifting device installation rod 3 is installed in the middle of the two transverse bearing rods 1, the bending bearing rod 2 penetrates through the lifting device installation rod 3, two ends of the bending bearing rod 2 are located inside grooves in the tops of the transverse bearing rods 1, the lifting device installation rods 3 of the bending bearing rod are suspended for bearing, and the bearing force of a bearing block 5 is scattered.
Referring to fig. 1 and 2, connecting rods 8 are welded and fixed at the middle parts of the front ends and the rear ends of the tops of two end rectangular rods 9, the other ends of the connecting rods 8 are fixed at the tops of the transverse bearing rods 1, and the connecting rods 8 are connected with the end rectangular rods 9 and the transverse bearing rods 1 to avoid separation.
A kind of junction piece;
referring to fig. 4 and 5, the sliding limiting mechanism comprises two sliding chute straight rods 20, the two sliding chute straight rods 20 are fixed at the bottoms of the inner walls of the limiting holes 30, the tops of the two sliding chute straight rods 20 are slidably provided with the same sliding seat 21, the tops of the sliding seats 21 are fixedly welded with round plug-in columns 15, the round plug-in columns 15 can be plugged into limiting jacks of the plug-in bearing blocks 5, when the sliding limiting mechanism is installed, the plug-in bearing blocks 5 are inserted into the limiting holes 30, the round plug-in columns 15 and the sliding seats 21 slide at the tops of the sliding chute straight rods 20 to drive the round plug-in columns 15 to move, and the moving round plug-in columns 15 can be inserted into the limiting jacks of the plug-in bearing blocks 5 to limit the plug-in bearing blocks 5.
Referring to fig. 4, a connection block 22 is welded and fixed at the top of the circular plug-in column 15, an inclined surface sliding block 17 is welded and fixed at the top of the connection block 22, the top of the inclined surface sliding block 17 is inclined, a sleeve hole is formed in the middle of the rear end of the circular plug-in column 15, the inclined surface sliding block 17 is mounted at the top of the circular plug-in column 15, and the inclined surface is convenient for contact pushing.
Referring to fig. 4 and 5, the bottom of the rear end of the inner wall of the two limiting holes 30 is welded and fixed with a sleeve shaft rod 19, the sleeve shaft rod 19 can be inserted into the sleeve hole of the circular inserting column 15, the outer circumferential wall of the sleeve shaft rod 19 is sleeved with a first spring 18, the first spring 18 can push the circular inserting column 15 to move towards one side of the inserting bearing block 5 under the condition that the pressing column 4 is not pressed, the first spring 18 is inserted into the inserting hole of the inserting bearing block 5 to avoid falling off, the inclined surface sliding block 17 is driven to move, and the inclined surface of the inclined surface sliding block 17 can jack up the pressing inclined block 16.
Referring to fig. 4 and 5, the pressing mechanism includes two pressing columns 4, and two pressing columns 4 respectively pass through the top of the end rectangular rod 9, the bottom ends of two pressing columns 4 are welded and fixed with pressing inclined blocks 16, and the pressing inclined blocks 16 are matched with the inclined planes of the inclined plane sliding blocks 17, when the plug-in bearing block 5 is required to be inserted into the limiting hole 30, the pressing columns 4 are pressed by a worker, the inclined planes of the pressing inclined blocks 16 below the pressing columns 4 can contact with the inclined planes of the inclined plane sliding blocks 17, and the inclined plane sliding blocks 17 and the circular plug-in columns 15 are pushed to move on the chute straight rods 20.
During the use, at first with the fixture block board 7 card at two tip rectangular bar 9 both ends on two horizontal bearing bars 1, servo motor 24 moves simultaneously, can drive its gear board 29 rotation, thereby mesh rack bar 12, can push away rectangular stopper 10, can drive rectangular stopper 10's to circular pole 26 one end removal, circular pole 26 can insert in rectangular stopper 10's the grafting round hole simultaneously rectangular stopper 10 can extrude spring two 27, when servo motor 24 does not use, spring two 27 can react rectangular stopper 10, promote rectangular stopper 10 and prevent to follow the rectangular hole internal sliding of horizontal bearing bar 1, when rectangular stopper 10 gets into the rectangular hole of horizontal bearing bar 1, can promote many gag lever post 31 upward movement, pass fixture block board 7, can carry out the limiting action to fixture block board 7, prevent fixture block board 7 break away from horizontal bearing bar 1 outer wall, simultaneously when installing handling equipment installation pole 3, when needs insert grafting supporting block 5 inside spacing hole 30, the pressure post 4, the inclined plane of pressing down sloping block 16 below pressing down post 4 can contact inclined plane sliding block 17, the inclined plane of pushing down block 17, when the inclined plane of pressing down supporting block 16, the inclined plane sliding block 17 is carried out the inclined plane 15 and carrying out the sliding block 15 is carried out to the jack 15 and can be carried out the circular sliding block 15 and can be carried out to the jack 15 simultaneously in the jack 5, can be prevented to the jack 5 is moved to the jack-up, can be carried out the jack-down, can be moved to the jack 15 is realized, and the jack-down is realized and the jack 15 is realized.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a connection structure that gantry crane truss girder improves, includes two horizontal bearing bars (1), two both sides between horizontal bearing bars (1) all are provided with tip rectangular bar (9), rectangular hole all is opened at the both ends of one side between two horizontal bearing bars (1), and the both ends of two tip rectangular bar (9) all welded fastening has fixture block board (7), and a plurality of through-holes all open at the both ends of one side between two horizontal bearing bars (1) tops, and the inner wall of through-hole all is provided with gag lever post (31), many gag lever posts (31) all pass the top of fixture block board (7), open in the recess of fixture block board (7) has mounting hole (28), its characterized in that, two all open in the middle part of one side between tip rectangular bar (9) has spacing hole (30), and the inner wall of two spacing holes (30) all peg graft and have socket weight (5), the non-adjacent one side in both ends bottom of two socket weight (5) all opens spacing jack, the one end between socket weight (5) all has a plurality of same root equipment (3), the inner wall (28) have mounting hole (28) and the inner wall that push mechanism (30) have between the both sides to dismantle after the inner wall (30) have the inner wall, the inner wall (30) is all provided with spacing hole, the inner wall of the pressing hole is provided with a pressing mechanism;
during installation, two end rectangular rods (9) are installed between two transverse bearing rods (1), the outer walls of the transverse bearing rods (1) can be clamped through clamping block plates (7), meanwhile, the inner pushing mechanism can push the fixing mechanism to move, rectangular holes of the transverse bearing rods (1) are moved to be connected, when the lifting equipment installation rods (3) are installed, the inserting supporting blocks (5) are inserted into limiting holes (30) of the end rectangular rods (9), the inserting supporting blocks (5) are limited through the sliding limiting mechanism, falling is prevented, meanwhile, when rectangular limiting blocks (10) enter the rectangular holes of the transverse bearing rods (1), a plurality of limiting rods (31) are pushed to move upwards, the clamping block plates (7) are penetrated, limiting action is carried out on the clamping block plates (7), and the clamping block plates (7) are prevented from being separated from the outer walls of the transverse bearing rods (1).
2. The improved connecting structure of the girder of the portal crane truss according to claim 1, wherein the fixing mechanism comprises two sliding rails (14), the two sliding rails (14) are respectively fixed on two sides of the inner wall of the mounting hole (28), the two sliding rails (14) in the same mounting hole (28) are slidably provided with the same rectangular limiting block (10), the rectangular limiting block (10) can be slidably inserted into the rectangular hole of the transverse bearing rod (1), the middle part of one end of the rectangular limiting block (10) far away from the transverse bearing rod (1) is provided with an inserting round hole, the bottoms of the inner walls of the mounting holes (28) are fixedly welded with a bottom plate (13), and one side, close to the transverse bearing rod (1), of the top of the bottom plate (13) is fixedly welded with a bearing base block (11).
3. The improved connecting structure of the girder of the portal crane truss according to claim 2, wherein the middle parts of one ends of the inner walls of the plurality of mounting holes (28) far away from the transverse bearing rods (1) are welded and fixed with round rods (26), the round rods (26) can be inserted into the inserting round holes of the rectangular limiting blocks (10) in the same mounting hole (28), and the second springs (27) are sleeved on the circumferential outer walls of the plurality of round rods (26).
4. The improved connection structure of the girder of the portal crane truss according to claim 3, wherein the pushing mechanism comprises two bases (23), the two bases (23) are fixed at the top of the bottom plate (13), the same servo motor (24) is detachably mounted at the top of the two bases (23) through bolts, a gear plate (29) is arranged at the rear end of an output shaft of the servo motor (24), a plurality of rack bars (12) are arranged at the middle parts of the bottoms of the rectangular limiting blocks (10), and the gear plates (29) inside the same mounting holes (28) are meshed with the rack bars (12).
5. The improved connecting structure of the portal crane truss girder according to claim 4, wherein a through hole is formed in the middle of the front end of the lifting device installation rod (3), a bending bearing rod (2) is inserted into the inner wall of the through hole, two ends of the bending bearing rod (2) are fixed at the tops of two transverse bearing rods (1), and supporting columns (6) are arranged on two sides of the bottoms of the two transverse bearing rods (1).
6. The improved connecting structure of the girder of the portal crane truss as claimed in claim 5, wherein the connecting rods (8) are welded and fixed at the middle parts of the front ends and the rear ends of the tops of the two end rectangular rods (9), and the other ends of the plurality of connecting rods (8) are fixed at the tops of the transverse bearing rods (1).
7. The improved connection structure of the girder of the gantry crane truss according to claim 6, wherein the sliding limiting mechanism comprises two sliding chute straight rods (20), the two sliding chute straight rods (20) are fixed at the bottoms of the inner walls of the limiting holes (30), the same sliding seat (21) is slidably mounted at the tops of the two sliding chute straight rods (20), a circular inserting column (15) is fixedly welded at the top of the sliding seat (21), and the circular inserting column (15) can be inserted into the limiting insertion holes of the inserting bearing blocks (5).
8. The improved connection structure of the portal crane truss girder according to claim 7, wherein the top of the round plug-in column (15) is fixedly welded with a connecting block (22), the top of the connecting block (22) is fixedly welded with an inclined sliding block (17), the top of the inclined sliding block (17) is inclined, and a sleeve hole is formed in the middle of the rear end of the round plug-in column (15).
9. The improved connecting structure of the girder of the portal crane truss as claimed in claim 8, wherein sleeve shafts (19) are welded and fixed at the bottoms of the rear ends of the inner walls of the two limiting holes (30), the sleeve shafts (19) can be inserted into sleeve holes of the circular inserting columns (15), and the first springs (18) are sleeved on the circumferential outer walls of the sleeve shafts (19).
10. The improved connection structure of the girder of the portal crane truss according to claim 9, wherein the pressing mechanism comprises two pressing columns (4), the two pressing columns (4) respectively penetrate through the top of the rectangular end rod (9), the bottom ends of the two pressing columns (4) are fixedly welded with pressing inclined blocks (16), and the pressing inclined blocks (16) are matched with inclined surfaces of the inclined sliding blocks (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311351866.2A CN117088251B (en) | 2023-10-19 | 2023-10-19 | Improved connecting structure and connecting piece for girder of gantry crane truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311351866.2A CN117088251B (en) | 2023-10-19 | 2023-10-19 | Improved connecting structure and connecting piece for girder of gantry crane truss |
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| Publication Number | Publication Date |
|---|---|
| CN117088251A CN117088251A (en) | 2023-11-21 |
| CN117088251B true CN117088251B (en) | 2023-12-29 |
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| CN202311351866.2A Active CN117088251B (en) | 2023-10-19 | 2023-10-19 | Improved connecting structure and connecting piece for girder of gantry crane truss |
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| CN218145474U (en) * | 2022-07-23 | 2022-12-27 | 大畏机床(江苏)有限公司 | Portal crane convenient to build |
| CN115594091A (en) * | 2022-09-17 | 2023-01-13 | 河南迅隆实业有限公司（Cn） | Modular assembly type house hoisting device and hoisting method |
| CN218595918U (en) * | 2022-07-27 | 2023-03-10 | 安徽克鲁克智能装备有限公司 | Bridge frame of gantry crane |
| CN219174052U (en) * | 2023-02-22 | 2023-06-13 | 新乡市恒升起重机械有限公司 | Combined bridge structure of gantry crane |
| CN116768068A (en) * | 2022-03-24 | 2023-09-19 | 江运全 | Bridge crane beam structure |
| CN219731654U (en) * | 2023-05-06 | 2023-09-22 | 广西交科集团有限公司 | Bridge guardrail support frame |
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2023
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| CN210103304U (en) * | 2019-06-21 | 2020-02-21 | 江苏泛洲船务有限公司 | Assembled hanging beam |
| CN214570142U (en) * | 2021-02-01 | 2021-11-02 | 武汉汉维起重设备制造有限公司 | Support quick assembly disassembly's gantry crane |
| CN215249129U (en) * | 2021-07-23 | 2021-12-21 | 中起重工机械有限公司 | Gantry crane girder |
| CN215924175U (en) * | 2021-08-18 | 2022-03-01 | 绍兴南特起重设备有限公司 | Combined main beam of crane |
| CN116768068A (en) * | 2022-03-24 | 2023-09-19 | 江运全 | Bridge crane beam structure |
| CN115258964A (en) * | 2022-06-17 | 2022-11-01 | 阮有奎 | Electric hoist bridge crane |
| CN218145474U (en) * | 2022-07-23 | 2022-12-27 | 大畏机床(江苏)有限公司 | Portal crane convenient to build |
| CN218595918U (en) * | 2022-07-27 | 2023-03-10 | 安徽克鲁克智能装备有限公司 | Bridge frame of gantry crane |
| CN115594091A (en) * | 2022-09-17 | 2023-01-13 | 河南迅隆实业有限公司（Cn） | Modular assembly type house hoisting device and hoisting method |
| CN219174052U (en) * | 2023-02-22 | 2023-06-13 | 新乡市恒升起重机械有限公司 | Combined bridge structure of gantry crane |
| CN219731654U (en) * | 2023-05-06 | 2023-09-22 | 广西交科集团有限公司 | Bridge guardrail support frame |
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| CN117088251A (en) | 2023-11-21 |
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