CN116986479A - Portal crane for loading and unloading cargoes in cargo yard, stock yard and bulk cargo - Google Patents
Portal crane for loading and unloading cargoes in cargo yard, stock yard and bulk cargo Download PDFInfo
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- CN116986479A CN116986479A CN202311253106.8A CN202311253106A CN116986479A CN 116986479 A CN116986479 A CN 116986479A CN 202311253106 A CN202311253106 A CN 202311253106A CN 116986479 A CN116986479 A CN 116986479A
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- 230000005540 biological transmission Effects 0.000 claims description 52
- 230000000712 assembly Effects 0.000 claims description 26
- 238000000429 assembly Methods 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect 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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
- B66C13/14—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices to load-engaging elements or motors associated therewith
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a portal crane for loading and unloading operations of goods yards, stock yards and bulk cargos, and relates to the technical field of portal cranes, comprising a portal frame, wherein the portal frame is integrally formed by a left T-shaped supporting rod, a right T-shaped supporting rod and a cross beam rod welded between the top end sections of the two T-shaped supporting rods, four wheels are symmetrically and fixedly arranged at the bottoms of the two T-shaped supporting rods in a front-back manner, two strip-shaped sliding grooves are symmetrically and transversely penetrated on the cross beam rod, and two vertically supported clamping plates are symmetrically and slidably arranged on the two strip-shaped sliding grooves; the top ends of the two clamping plates are welded with a soil-shaped sliding block, and the two soil-shaped sliding blocks are correspondingly matched with the two strip-shaped sliding grooves in a sliding way; the middle section of the portal beam rod is penetrated and provided with a threading hole, and the top end of the beam rod is symmetrically supported and welded with two mounting seats with rectangular structures. The invention can avoid the trouble of tightening and loosening the goods by manually exerting force to the two opposite sliding clamping plates before and after lifting the goods, simplifies the using and operating steps of the crane, and saves time and labor.
Description
Technical Field
The invention relates to the technical field of portal cranes, in particular to a portal crane for loading and unloading operations of goods yards, stock yards and bulk cargoes.
Background
When loading and unloading operations are carried out on stock ground cargoes and bulk cargoes in a cargo yard, the movable gantry crane can be generally used because the cargoes are heavier to facilitate transporting the cargoes, and most of the conventional gantry cranes are provided with compression limiting assemblies for preventing shaking during hoisting and transporting the cargoes, but the compression limiting assemblies are required to be additionally manually operated to be elastic before and after hoisting the cargoes, so that the cargoes cannot be driven by hoisting power linkage, the operation is inconvenient, and although some cranes are provided with compression limiting assemblies driven by hoisting power linkage, the problem that the normal hoisting operation of the cargoes is affected because the compression limiting assemblies and the hoisting assembly are in a linkage mechanism has design defects, and the compression limiting assemblies clamp the cargoes when the cargoes are not hoisted off is easily caused.
Disclosure of Invention
The invention aims to provide a portal crane for loading and unloading operations of goods in a goods yard, goods in a stock yard and bulk goods, which is provided with inserting rods, the distance between two transmission frames and a stress ring can be adjusted and changed through selective inserting matching of two inserting rods and two rows of inserting holes on two vertical positioning plates, the portal crane is applicable to lifting goods with different heights, has wide application, and solves the problem that when the goods meet higher goods, the goods are not lifted off the ground, and the stress ring is lifted to be in abutting contact with the two transmission frames to drive the two clamping plates to clamp the goods, so that the normal lifting operation of the goods is affected.
In order to achieve the above purpose, the present invention provides the following technical solutions: the portal crane for loading and unloading cargoes, stockyards and bulk cargoes comprises a portal frame, wherein the portal frame is integrally formed by a left T-shaped supporting rod, a right T-shaped supporting rod and a cross beam rod welded between the top end sections of the two T-shaped supporting rods, four wheels are symmetrically and fixedly arranged at the bottoms of the two T-shaped supporting rods in a front-back mode, two strip-shaped sliding grooves are symmetrically and transversely formed in a penetrating mode on the cross beam rod, and clamping plates for two vertical supports are symmetrically and slidably arranged on the two strip-shaped sliding grooves; the top ends of the two clamping plates are welded with a soil-shaped sliding block, and the two soil-shaped sliding blocks are correspondingly matched with the two strip-shaped sliding grooves in a sliding way; the middle section of the portal beam rod is provided with a threading hole in a penetrating way, the top end of the beam rod is symmetrically supported and welded with two mounting seats with rectangular structures, the left mounting seat is provided with an electric box, and the right mounting seat is provided with a hoisting motor; a steel wire rope on a winding disc of the winding motor passes through a threading hole on a beam rod to hang downwards, a stress ring is fixedly arranged at the bottom section of the steel wire rope, and the bottommost end of the steel wire rope is connected with a lifting hook; two vertical positioning rods are symmetrically welded on the two T-shaped supporting rods in a left-right symmetry manner, and two sliding assemblies are sleeved on the two vertical positioning rods in a sliding manner through spring pushing; four vertical supporting rail shafts are symmetrically welded on the two T-shaped supporting rods in front and back, two transmission frames with U-shaped structures are slidably arranged on the four vertical supporting rail shafts at intervals in front and back, a vertical short shaft is welded in the middle of the top end of the front transmission frame, and a sliding plate is slidably sleeved on the vertical short shaft; four connecting short rods are welded between the left vertical supporting rods and the right vertical supporting rods of the two transmission frames at intervals up and down; the stress ring slides upwards along with the steel wire rope to be in abutting contact with the top end cross braces of the two transmission frames; two positioning blocks are symmetrically welded on the left end section and the right end section of the front side transmission frame top cross brace, the whole positioning block is formed by jointly welding a large circular plate and a small circular plate, the top horizontal section of the two folding and turning plug-in connector is correspondingly in penetrating sliding fit with the two large-diameter circular plates on the two positioning blocks, and a six-edge sliding shaft is penetrated and sliding on the two small-diameter circular plates on the two positioning blocks.
Preferably, two groups of positioning rings are symmetrically welded at the middle positions of the top ends of the two connecting short rods at the bottom, two inserting rods are symmetrically welded at the bottom of the vertical supporting section of the two folding and turning plug connector, and the two inserting rods penetrate through sliding fit with the two groups of positioning rings through spring pushing.
Preferably, the whole sliding assembly is formed by welding a vertical sliding sleeve and two longitudinal supporting shaft rods which are welded on the middle section of the vertical sliding sleeve in a front-back symmetrical mode, wherein the two longitudinal supporting shaft rods are both rotationally connected with an inclined swinging rod.
Preferably, the head ends of the four inclined swinging rods on the two sliding assemblies are correspondingly connected with the middle sections of the two clamping plates in a rotating way.
Preferably, two vertical positioning plates are welded upwards on the vertical sliding sleeve of the two sliding assemblies, a row of jacks are arranged on the two vertical positioning plates at equal intervals, and the head end sections of the two inserted bars are correspondingly matched with the two rows of jacks in a plugging manner.
Preferably, a lifting plate is welded downwards on the middle section of the sliding plate, and a trapezoid stress block is welded at the bottom of the lifting plate.
Preferably, a guide wheel is rotatably arranged on the middle section of the six-edge sliding shaft, and the guide wheel slides rightwards to be in abutting contact with the inclined plane of the trapezoid stress block.
Preferably, the tail ends of the horizontal sections at the top ends of the two folding crutch splicing pieces are rotationally connected with two connecting rods, and the head ends of the two connecting rods are correspondingly rotationally connected with the left end and the right end of the sliding plate.
It should be noted that in order to ensure that the stock and bulk goods in the cargo yard are protected from impact or heavy pressure deformation, a wooden support protection frame is mostly arranged around the periphery of the stock and bulk goods, and two clamping plates are clamped on the wooden support protection frame.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, when goods are hoisted, the two clamping plates can slide towards the steel wire rope to clamp and fix the hoisted goods, so that the situation that the goods are swayed and rocked along with the steel wire rope when the goods move along with the portal is avoided, and the portal is overturned to cause the goods to be impacted and damaged;
2. according to the invention, through the power transmission of the stress ring, the steel wire rope can push and drive the two transmission frames and the two sliding assemblies to slide upwards to control the two clamping plates to slide inwards in a linkage manner so as to clamp and fix the lifted goods, and after the stress ring is separated from the two transmission frames and the ground goods are dropped under the steel wire rope, the springs on the two vertical positioning rods can push and drive the two sliding assemblies to slide downwards and reset to automatically control the two clamping plates to slide outwards so as to loosen the goods, so that the trouble of applying additional manual force to slide the two clamping plates in opposite directions before and after lifting the goods is omitted, the using and operating steps of the crane are simplified, and time and labor are saved;
3. according to the invention, the distance between the two transmission frames and the stress ring can be adjusted and changed through the selective plugging cooperation of the two plugging rods and the two rows of jacks on the two vertical positioning plates, so that the lifting device is applicable to lifting cargoes with different heights, has wide application, avoids the cargoes from being lifted off the ground when encountering higher cargoes, and can drive the two clamping plates to clamp the cargoes by lifting, abutting and contacting with the two transmission frames, thereby causing barriers to the normal lifting of the cargoes;
4. according to the invention, through the inclined plane guiding principle, the six-edge sliding shaft slides rightwards, the guide wheel can push and drive the trapezoidal stress block and the sliding plate to slide downwards to control the two inserting rods to slide outwards synchronously, so that the trouble of sequentially carrying out pulling and inserting tightness on the two inserting rods step by step is omitted, the two inserting rods can be pulled out only by sliding the six-edge sliding shaft rightwards, the operation is simple, the two inserting rods can be loosened and loosened in the cargo lifting process due to the characteristic of simplicity in operation, and when the two inserting rods loosen the two transmission frames, the two transmission frames can directly drive the upper sliding to adjust the height by using lifting force from the stress ring, and the trouble of manually lifting and adjusting the transmission frames is omitted;
5. according to the invention, the height of the transmission frame can be intuitively adjusted according to the height of the goods by loosening the two inserted bars in real time in the lifting process (namely, when the height of the transmission frame is adjusted according to the height of the goods, the transmission frame can be pushed and lifted by the stress ring by loosening the two inserted bars, and after the goods are lifted off the ground, the two inserted bars are reset and inserted immediately, so that the two transmission frames can timely transmit lifting force to the two vertical positioning plates and the two sliding assemblies, and the clamping of the goods by the two clamping plates is controlled in a linkage manner at accurate time.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall rear structure of the present invention;
FIG. 3 is a schematic view of the overall bottom structure of the present invention;
FIG. 4 is a schematic diagram of a driving frame structure of the present invention;
FIG. 5 is a schematic view of a six-sided slide shaft according to the present invention;
FIG. 6 is a schematic view of a gantry structure of the present invention;
FIG. 7 is a schematic view of the structure of the clamping plate of the present invention;
FIG. 8 is a schematic view of the mounting location of the vertical positioning rod of the present invention;
FIG. 9 is an enlarged schematic view of the portion A of FIG. 2 according to the present invention;
in the figure, the correspondence between the component names and the drawing numbers is:
1. a door frame; 101. a mounting base; 102. a vertical positioning rod; 103. vertically supporting a rail shaft; 2. a hoisting motor; 3. a clamping plate; 301. a soil-shaped sliding block; 4. a transmission frame; 401. a positioning block; 402. a vertical minor axis; 5. a six-edge sliding shaft; 501. a guide wheel; 6. a folding crutch splicing piece; 601. a rod; 602. a connecting rod; 7. a sliding assembly; 701. a vertical positioning plate; 702. tilting the swing rod; 8. a stress ring; 9. a sliding plate; 901. trapezoidal stress block.
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 to 9, an embodiment of the present invention provides: the portal crane for loading and unloading operations of goods in a goods yard, goods in a stock yard and bulk goods comprises a portal frame 1, wherein the portal frame 1 is integrally formed by a left T-shaped supporting rod, a right T-shaped supporting rod and a cross beam rod welded between the top end sections of the two T-shaped supporting rods, four wheels are symmetrically and fixedly arranged at the bottoms of the two T-shaped supporting rods in a front-back mode, two strip-shaped sliding grooves are symmetrically and transversely penetrated through the cross beam rod, and clamping plates 3 of two vertical supports are symmetrically and slidably arranged on the two strip-shaped sliding grooves; the top ends of the two clamping plates 3 are welded with a soil-shaped sliding block 301, and the two soil-shaped sliding blocks 301 are correspondingly matched with the two strip-shaped sliding grooves in a sliding way; the middle section of the beam rod of the portal 1 is provided with a threading hole in a penetrating way, the top end of the beam rod is symmetrically supported and welded with two mounting seats 101 with rectangular structures, wherein an electric box is arranged on the left mounting seat 101, and a hoisting motor 2 is arranged on the right mounting seat 101; the steel wire rope on the winding disc of the winding motor 2 passes through the threading hole on the beam rod to hang downwards, the bottom section of the steel wire rope is fixedly provided with a stress ring 8, and the bottommost end of the steel wire rope is connected with a lifting hook; two vertical positioning rods 102 are symmetrically welded on the two T-shaped support rods in a left-right symmetry manner, and two sliding assemblies 7 are sleeved on the two vertical positioning rods 102 in a sliding manner through spring pushing; four vertical supporting rail shafts 103 are symmetrically welded on the two T-shaped supporting rods in front and back, two transmission frames 4 with U-shaped structures are slidably arranged on the four vertical supporting rail shafts 103 at intervals in front and back, a vertical short shaft 402 is welded in the middle of the top end of the front transmission frame 4, and a sliding plate 9 is slidably sleeved on the vertical short shaft 402; four connecting short rods are welded between the left vertical supporting rods and the right vertical supporting rods of the two transmission frames 4 at intervals up and down; the stress ring 8 slides upwards along with the steel wire rope to be in abutting contact with the top transverse supporting rods of the two transmission frames 4, the steel wire rope can push and drive the two transmission frames 4 and the two sliding assemblies 7 to slide upwards to control the two clamping plates 3 to slide inwards to clamp and fix the hoisted goods when lifting the goods upwards through the power transmission of the stress ring 8, after the steel wire rope falls down to the ground goods, the springs on the two vertical positioning rods 102 can push and drive the two sliding assemblies 7 to slide downwards to reset to automatically control the two clamping plates 3 to slide outwards to loosen the goods, the trouble that the two clamping plates 3 apply tightness to the goods when lifting the goods is omitted, the using operation steps of the crane are simplified, and time and labor are saved; two positioning blocks 401 are symmetrically welded on the left end section and the right end section of the top end cross brace of the front side transmission frame 4, the whole positioning block 401 is formed by jointly welding two large circular plates and one small circular plate, the top end horizontal sections of the two folding and turning connectors 6 are correspondingly in penetrating sliding fit with the two large-diameter circular plates on the two positioning blocks 401, and a six-edge sliding shaft 5 is penetrated and sliding on the two small-diameter circular plates on the two positioning blocks 401; a lifting plate is welded downwards on the middle section of the sliding plate 9, and a trapezoid stress block 901 is welded at the bottom of the lifting plate; two groups of positioning rings are symmetrically welded at the middle positions of the top ends of the two connecting short rods at the bottom, two inserting rods 601 are symmetrically welded at the bottom of the vertical supporting section of the two folding crutch splicing pieces 6, and the two inserting rods 601 are in penetrating sliding fit with the two groups of positioning rings through spring pushing; the whole sliding assembly 7 is formed by jointly welding a vertical sliding sleeve and two longitudinal support shafts which are welded on the middle section of the vertical sliding sleeve in a front-back symmetrical mode, wherein the two longitudinal support shafts are respectively connected with an inclined swing rod 702 in a rotating mode.
As shown in fig. 2, the front ends of the four inclined swinging rods 702 on the two sliding assemblies 7 are correspondingly connected with the middle sections of the two clamping plates 3 in a rotating manner, when goods are hoisted, the two clamping plates 3 can slide towards the steel wire rope to clamp and fix the hoisted goods, the situation that the goods swing along the steel wire rope to shake when the goods move along with the portal 1 is avoided, the portal 1 is tilted to cause the goods to collide and damage is avoided, the two sliding assemblies 7, the two clamping plates 3, the four inclined swinging rods 702 and the two soil-shaped sliding blocks 301 are jointly connected to form a two-position double-crank sliding block mechanism, and the two clamping plates 3 can be pushed to be driven to slide inwards and outwards to implement tightness on the hoisted goods by sliding the two sliding assemblies 7 up and down through the two-position double-crank sliding assemblies, and attention should be paid to push and transfer the goods along the arrangement direction of the beam rod of the portal 1.
As shown in fig. 6, two vertical positioning plates 701 are welded upwards on the vertical sliding sleeve of the two sliding assemblies 7, a row of jacks are arranged on the two vertical positioning plates 701 at equal intervals, the head end sections of the two inserting rods 601 are correspondingly matched with the two rows of jacks in an inserting manner, the two inserting rods 601 can enable the two transmission frames 4, the two vertical positioning plates 701 and the two sliding assemblies 7 to be inserted together, the upward sliding lifting force of the steel wire rope can be transmitted to the two sliding assemblies 7 through the two transmission frames 4, normal implementation of the linkage driving function of the steel wire rope on the two clamping plates 3 is ensured, the distance between the two transmission frames 4 and the stress ring 8 can be adjusted through the selective inserting matching of the two inserting rods 601 and the two rows of jacks on the two vertical positioning plates 701, the lifting of cargos with different heights is applicable, the application is wide, and the problem that the cargos are not lifted off the ground when encountering higher cargos is avoided, the stress ring 8 is in contact with the two transmission frames 4 in an upward pushing manner to drive the two clamping plates 3 to clamp the cargos, and the normal lifting of the cargos are blocked.
As shown in fig. 1, a guide wheel 501 is rotatably installed on the middle section of the six-edge sliding shaft 5, the guide wheel 501 slides rightward and contacts with the inclined plane of the trapezoid stress block 901 in an abutting manner, through the inclined plane guiding principle, the guide wheel 501 can push and drive the trapezoid stress block 901 and the sliding plate 9 to slide downward to control the two inserting rods 601 to slide synchronously and outwards, the trouble of sequentially carrying out the pulling and inserting tightness on the two inserting rods 601 step by step is omitted, the two inserting rods 601 can be pulled and separated only by sliding the six-edge sliding shaft 5 rightward, the operation is simple, due to the characteristic of simplicity of operation, the two inserting rods 601 can be carried out in the lifting process of goods, when the two inserting rods 601 loosen the two transmission frames 4, the two transmission frames 4 can be driven to slide upward by directly using lifting force from the stress ring 8, the trouble of manually lifting and adjusting the transmission frames 4 is omitted, in addition, the height of the transmission frames 4 can be adjusted intuitively according to the height of the goods in real time by adjusting the height of the two inserting rods 601 (namely, when the transmission frames 4 are adjusted according to the height of the goods, the height of the transmission frames are adjusted by sliding the two inserting rods 4, the two inserting rods can be adjusted in advance, and the two transmission frames are positioned at the position 4 can be adjusted by the two lifting frames are adjusted in advance, compared with the accuracy by the lifting force of the lifting rings 4, and the two transmission frames are adjusted in advance, and the two transmission frames are adjusted by the height is adjusted by the lifting frame 4 in advance by the lifting frame 4, and the lifting force is adjusted by the lifting frame 4 in advance by the lifting accuracy is compared with the accuracy by the lifting frame 4 is adjusted by the lifting accuracy.
As shown in fig. 4, the tail ends of the top horizontal sections of the two folding and turning connectors 6 are rotatably connected with two connecting rods 602, the head ends of the two connecting rods 602 are correspondingly rotatably connected with the left and right ends of the sliding plate 9, the two folding and turning connectors 6, the two connecting rods 602 and the sliding plate 9 are jointly connected to form a two-connecting-rod opposite sliding mechanism, and the sliding plate 9 can drive the two folding and turning connectors 6 and the two inserting rods 601 to synchronously draw and insert the two transmission frames 4 and the two vertical positioning plates 701 in the inside and outside directions to implement tightness.
Working principle: during use, the goods are pushed and transferred along the arrangement direction of the beam rods of the portal 1, when the goods are hoisted, through the power transmission of the stress ring 8, the steel wire rope can push and drive the two transmission frames 4 and the two sliding components 7 to slide upwards when the goods are lifted, and as the two sliding components 7, the two clamping plates 3, the four inclined swinging rods 702 and the two soil-shaped sliding blocks 301 are jointly connected to form the two double-crank sliding block mechanisms, the two sliding components 7 can push and drive the two clamping plates 3 to slide inwards upwards to clamp the hoisted goods, so that the situation that the goods are overturned to cause the damage of the goods due to collision caused by the tipping of the portal 1 when the goods move along with the pushing of the portal 1 is avoided;
the two inserting rods 601 can be used for inserting and connecting the two transmission frames 4, the two vertical positioning plates 701 and the two sliding assemblies 7 together, so that the upward sliding lifting force of the steel wire rope can be transmitted to the two sliding assemblies 7 through the two transmission frames 4, the normal implementation of the linkage driving function of the steel wire rope to the two clamping plates 3 is ensured, the distance between the two transmission frames 4 and the stress rings 8 can be adjusted and changed through the selective inserting matching of the two inserting rods 601 and the two rows of jacks on the two vertical positioning plates 701, and the lifting device is suitable for lifting cargoes with different heights;
through the inclined plane guiding principle, the guide wheel 501 can push and drive the trapezoidal stress block 901 and the sliding plate 9 to slide downwards, and as the two folding crutch splicing pieces 6, the two connecting rods 602 and the sliding plate 9 are connected together to form a double-connecting-rod opposite sliding mechanism, the sliding plate 9 can further move downwards to drive the two folding crutch splicing pieces 6 and the two inserting rods 601 to slide outwards synchronously to loosen the two transmission frames 4 and the two vertical positioning plates 701.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A gantry crane for goods yard, stock yard goods, bulk cargo handling operations, its characterized in that: the portal crane comprises a portal frame (1), wherein the portal frame (1) is integrally formed by a left T-shaped supporting rod, a right T-shaped supporting rod and a cross beam rod welded between the top end sections of the two T-shaped supporting rods, four wheels are symmetrically and fixedly arranged at the bottoms of the two T-shaped supporting rods in a front-back mode, two strip-shaped sliding grooves are symmetrically and transversely formed in the cross beam rod in a penetrating mode, and two vertically-supported clamping plates (3) are symmetrically and slidably arranged on the two strip-shaped sliding grooves; the top ends of the two clamping plates (3) are welded with a soil-shaped sliding block (301), and the two soil-shaped sliding blocks (301) are correspondingly matched with the two strip-shaped sliding grooves in a sliding way; a threading hole is formed in the middle section of a beam rod of the portal (1) in a penetrating mode, two mounting seats (101) with rectangular structures are symmetrically supported and welded at the top end of the beam rod, an electric box is mounted on the left mounting seat (101), and a hoisting motor (2) is mounted on the right mounting seat (101); a steel wire rope on a winding disc of the winding motor (2) passes through a threading hole on a beam rod to hang downwards, a stress ring (8) is fixedly arranged at the bottom section of the steel wire rope, and the bottommost end of the steel wire rope is connected with a lifting hook; two vertical positioning rods (102) are symmetrically welded on the two T-shaped supporting rods in a left-right mode, and two sliding assemblies (7) are sleeved on the two vertical positioning rods (102) in a sliding mode through spring pushing and symmetrical sliding; four vertical supporting rail shafts (103) are symmetrically welded on the two T-shaped supporting rods in front and back, two transmission frames (4) with U-shaped structures are slidably arranged on the four vertical supporting rail shafts (103) at intervals in front and back, a vertical short shaft (402) is welded in the middle of the top end of the front transmission frame (4), and a sliding plate (9) is slidably sleeved on the vertical short shaft (402); four connecting short rods are welded between the left vertical supporting rods and the right vertical supporting rods of the two transmission frames (4) at intervals up and down; the stress ring (8) slides upwards along with the steel wire rope to be in abutting contact with the top transverse supporting rods of the two transmission frames (4); two positioning blocks (401) are symmetrically welded on the left end section and the right end section of the top end cross brace of the front side transmission frame (4), the whole positioning block (401) is formed by jointly welding two circular plates which are large and small, the top end horizontal section of the two folding and turning plug-in connector (6) is correspondingly in penetrating sliding fit with the two large-diameter circular plates on the two positioning blocks (401), and a six-edge sliding shaft (5) is penetrated and sliding on the two small-diameter circular plates on the two positioning blocks (401).
2. A gantry crane for use in yard, stock yard, bulk handling operations according to claim 1, characterized in that: two groups of positioning rings are symmetrically welded at the middle positions of the top ends of the two connecting short rods at the bottom, two inserting rods (601) are symmetrically welded at the bottom of the vertical supporting section of the two folding and turning plug connector (6), and the two inserting rods (601) penetrate through sliding fit with the two groups of positioning rings through spring pushing.
3. A gantry crane for use in yard, stock yard, bulk handling operations according to claim 1, characterized in that: the sliding assembly (7) is integrally formed by welding a vertical sliding sleeve and two longitudinal supporting shaft rods which are welded on the middle section of the vertical sliding sleeve in a front-back symmetrical mode, wherein the two longitudinal supporting shaft rods are both connected with an inclined swing rod (702) in a rotating mode.
4. A gantry crane for use in yard, stock yard goods, bulk handling operations according to claim 3, characterized in that: the head ends of the four inclined swing rods (702) on the two sliding assemblies (7) are correspondingly connected with the middle sections of the two clamping plates (3) in a rotating way.
5. A gantry crane for use in yard, stock yard, bulk handling operations according to claim 2, characterized in that: two vertical locating plates (701) are welded upwards on the vertical sliding sleeve of the two sliding assemblies (7), a row of jacks are arranged on the two vertical locating plates (701) at equal intervals, and the head end sections of the two inserting rods (601) are correspondingly matched with the two rows of jacks in an inserting mode.
6. A gantry crane for use in yard, stock yard, bulk handling operations according to claim 1, characterized in that: a lifting plate is welded downwards on the middle section of the sliding plate (9), and a trapezoid stress block (901) is welded at the bottom of the lifting plate.
7. A gantry crane for use in yard, stock yard, bulk handling operations according to claim 6, characterized in that: the middle section of the six-edge sliding shaft (5) is rotatably provided with a guide wheel (501), and the guide wheel (501) slides rightwards to be abutted against the inclined surface of the trapezoid stress block (901).
8. A gantry crane for use in yard, stock yard, bulk handling operations according to claim 1, characterized in that: the tail ends of the top horizontal sections of the two folding crutch connectors (6) are rotationally connected with two connecting rods (602), and the head ends of the two connecting rods (602) are correspondingly rotationally connected with the left end and the right end of the sliding plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311253106.8A CN116986479B (en) | 2023-09-27 | 2023-09-27 | Portal crane for loading and unloading cargoes in cargo yard, stock yard and bulk cargo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311253106.8A CN116986479B (en) | 2023-09-27 | 2023-09-27 | Portal crane for loading and unloading cargoes in cargo yard, stock yard and bulk cargo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116986479A true CN116986479A (en) | 2023-11-03 |
| CN116986479B CN116986479B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311253106.8A Active CN116986479B (en) | 2023-09-27 | 2023-09-27 | Portal crane for loading and unloading cargoes in cargo yard, stock yard and bulk cargo |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210064929U (en) * | 2019-06-14 | 2020-02-14 | 宁夏重工起重设备有限公司 | Automatic clamping device of gantry crane |
| CN111232827A (en) * | 2020-02-14 | 2020-06-05 | 广州京海科技有限公司 | Gantry crane with high stability for bridge construction |
| CN212292613U (en) * | 2020-06-05 | 2021-01-05 | 中发集运(天津)物流发展有限公司 | Logistics loading and unloading conveying equipment |
| CN213894967U (en) * | 2020-10-11 | 2021-08-06 | 广州五杰机械有限公司 | Gantry crane protection device |
| CN218145478U (en) * | 2022-08-19 | 2022-12-27 | 光明起重集团有限公司 | Gantry crane with prevent structure of toppling |
| CN218665040U (en) * | 2022-09-13 | 2023-03-21 | 阳春新钢铁有限责任公司 | Movable gantry crane device |
| CN218754679U (en) * | 2022-12-20 | 2023-03-28 | 董爱萍 | Support frame for gantry crane |
| CN219408996U (en) * | 2023-03-23 | 2023-07-25 | 湖南兰德科技发展有限公司 | Electromechanical device installation device |
-
2023
- 2023-09-27 CN CN202311253106.8A patent/CN116986479B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210064929U (en) * | 2019-06-14 | 2020-02-14 | 宁夏重工起重设备有限公司 | Automatic clamping device of gantry crane |
| CN111232827A (en) * | 2020-02-14 | 2020-06-05 | 广州京海科技有限公司 | Gantry crane with high stability for bridge construction |
| CN212292613U (en) * | 2020-06-05 | 2021-01-05 | 中发集运(天津)物流发展有限公司 | Logistics loading and unloading conveying equipment |
| CN213894967U (en) * | 2020-10-11 | 2021-08-06 | 广州五杰机械有限公司 | Gantry crane protection device |
| CN218145478U (en) * | 2022-08-19 | 2022-12-27 | 光明起重集团有限公司 | Gantry crane with prevent structure of toppling |
| CN218665040U (en) * | 2022-09-13 | 2023-03-21 | 阳春新钢铁有限责任公司 | Movable gantry crane device |
| CN218754679U (en) * | 2022-12-20 | 2023-03-28 | 董爱萍 | Support frame for gantry crane |
| CN219408996U (en) * | 2023-03-23 | 2023-07-25 | 湖南兰德科技发展有限公司 | Electromechanical device installation device |
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| CN116986479B (en) | 2023-12-22 |
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