CN116216534A - Fixed-orientation cantilever crane for improving bridge construction safety - Google Patents
Fixed-orientation cantilever crane for improving bridge construction safety Download PDFInfo
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- CN116216534A CN116216534A CN202310293630.1A CN202310293630A CN116216534A CN 116216534 A CN116216534 A CN 116216534A CN 202310293630 A CN202310293630 A CN 202310293630A CN 116216534 A CN116216534 A CN 116216534A
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- cantilever
- guide wheel
- telescopic arm
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- support
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of road traffic, in particular to a fixed-orientation cantilever crane for improving bridge construction safety, which comprises a vertical support frame, a first cantilever, a second cantilever, a guide wheel group, a hoisting mechanism, an orientation substrate and a telescopic arm, wherein the vertical support frame, the first cantilever, the second cantilever and the orientation substrate form a space quadrilateral structure, the first cantilever and the second cantilever are driven to rotate through a rotary driving mechanism, the end face of the orientation substrate is always parallel to the end face of the vertical support frame in the rotating process, the telescopic arm and a load borne by the telescopic arm below the telescopic arm are kept in a fixed orientation in the rotating process, and the operation is more convenient and the safety is higher in the process of stacking, loading and shifting the load.
Description
Technical Field
The invention relates to the technical field of road traffic, in particular to a directional cantilever crane for improving bridge construction safety.
Background
In the bridge construction process, a large amount of building materials such as concrete columns, round steel pipes and glass steel pipes are required, and in the production, processing and transferring processes of the concrete columns, the round steel pipes and the glass steel pipes, the long strip loading is often required to be shifted and piled, and because the long strip loading is large in size and heavy in weight, a crane is usually required to be used for lifting. For lifting of long-strip load, if a single lifting point is adopted for lifting, the load is lifted without limiting the rotation of the lifting rope, so that the load is easy to generate uncontrollable rotation in the lifting and shifting processes.
In the prior art, two or more lifting points are adopted to lift the load of the long strip, so that the direction of the load always coincides with the straight line determined by the lifting points in the process of lifting and shifting the load. However, in the existing cantilever crane, the running area of the whole cantilever is fan-shaped in the rotating and shifting process of the swing arm, so that when the cantilever rotates from one angle to another angle, a plurality of hanging points distributed on the cantilever also inevitably rotate, and therefore, the load mounted below the cantilever crane also inevitably changes the direction along with the rotation of the cantilever, and then certain operation barriers are generated for the stacking, loading and shifting of the load.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the fixed-orientation cantilever crane for improving bridge construction safety, a plurality of hanging points can be arranged below the cantilevers to avoid uncontrollable rotation of loads, and meanwhile, the orientation of the telescopic arms for mounting the loads is always kept fixed by the arrangement mode of the cantilevers, so that the stacking, loading and shifting of the strip-shaped loads can be more conveniently carried out.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the fixed-orientation cantilever crane comprises a vertical support frame, a first cantilever, a second cantilever, a guide wheel group, a hoisting mechanism, a directional substrate and a telescopic arm, wherein the first cantilever and the second cantilever are rotatably connected to the vertical support frame through a hinged support, and a certain interval is reserved between the first cantilever and the second cantilever in the transverse direction of the vertical support frame and also in the vertical direction of the vertical support frame;
the upper side of one end of the orientation substrate is rotationally connected with the first cantilever, and the lower side of the other end of the orientation substrate is rotationally connected with the second cantilever;
the telescopic boom comprises a main telescopic boom and an auxiliary telescopic boom, the lower part of the main telescopic boom is connected with a hanging bracket through a second lifting rope, and the lower part of the auxiliary telescopic boom is connected with another hanging bracket through a first lifting rope;
the two hanging frames respectively bear two ends of a long-strip-shaped load, the first lifting rope and the second lifting rope are connected with the hoisting mechanism after being guided by the guide wheel set, and the hoisting mechanism drives the load to lift;
the main telescopic arm and the auxiliary telescopic arm realize relative telescopic movement through the linear driving mechanism, so that the distance between the two hanging brackets can be changed, and the load with different lengths can be lifted;
the vertical support frame, the first cantilever, the second cantilever and the directional substrate form a space quadrilateral structure, the first cantilever and the second cantilever are driven to rotate through the rotary driving mechanism, the end face of the directional substrate is always parallel to the end face of the vertical support frame in the rotating process, and the telescopic arm and the load borne by the lower side of the telescopic arm keep a fixed orientation in the rotating process.
Further, the structures of the first cantilever and the second cantilever are similar, each of the first cantilever and the second cantilever comprises a first main beam, a second main beam and a diagonal reinforcement frame, the diagonal reinforcement frame of the first cantilever is fixedly connected with the upper sides of the first main beam and the second main beam, and the diagonal reinforcement frame of the second cantilever is fixedly connected with the lower sides of the first main beam and the second main beam;
the vertical support frame comprises a first upper hinged support, a first lower hinged support, a second upper hinged support, a second lower hinged support, a guide wheel plate, a cantilever rotating shaft and a swing arm drive;
the first upper hinge support, the first lower hinge support, the second upper hinge support, the second lower hinge support and the guide wheel plate are all arranged on the same end face of the vertical support frame, the distance between the first upper hinge support and the first lower hinge support is L, and the distance between the second upper hinge support and the second lower hinge support is L;
constructing an XY axis coordinate system on the end face of the vertical support frame, wherein the position of the guide wheel plate is taken as an original point, the position coordinate of the first lower hinge seat is (-A, H), the coordinate position of the first upper hinge seat is (-A, H+L), the position coordinate of the second upper hinge seat is (A, -H), and the position coordinate of the second lower hinge seat is (A, -H-L);
the hinge seat on the diagonal reinforcement frame of the first cantilever corresponds to the first upper hinge seat, the hinge seat on the main beam of the first cantilever corresponds to the first lower hinge seat, the hinge seat on the diagonal reinforcement frame of the second cantilever corresponds to the second lower hinge seat, and the hinge seat on the main beam of the second cantilever corresponds to the second upper hinge seat;
the first cantilever and the second cantilever are respectively connected with the first upper hinged support, the first lower hinged support, the second upper hinged support and the second lower hinged support in a rotatable manner through cantilever rotating shafts, are in transmission connection with the cantilever rotating shafts through swing arm driving, and are driven to horizontally rotate through the swing arm driving.
Further, the directional substrate comprises a substrate body, a first substrate hinged support, a second substrate rotating shaft and a first substrate rotating shaft;
the first substrate hinge seat is positioned on the upper side of one end of the substrate body, and the second substrate hinge seat is positioned on the lower sides of two ends of the substrate body;
the main beam of the first cantilever is rotatably connected with the first substrate hinged support through a first substrate rotating shaft, and the main beam of the second cantilever is rotatably connected with the second substrate hinged support through a second substrate rotating shaft;
and the second substrate rotating shaft and the first substrate rotating shaft are mutually parallel to the two cantilever rotating shafts on the first cantilever and the second cantilever, and the position coordinates of the first lower hinged support, the second upper hinged support, the first substrate hinged support and the second substrate hinged support form a space parallelogram structure.
Further, the telescopic arm further comprises an accommodating hole, a rack, a driving gear and a telescopic drive;
the main telescopic arm is fixedly arranged on the substrate body, the extending direction of the main telescopic arm is perpendicular to the end face of the substrate body, and the main telescopic arm is provided with an auxiliary telescopic arm capable of telescopic sliding;
the bottom plate of the auxiliary telescopic arm is provided with a containing hole, telescopic driving is arranged on the bottom plate of the main telescopic arm in a region corresponding to the containing hole, racks are arranged on the bottom plate of the auxiliary telescopic arm and positioned on two sides of the containing hole, driving gears are arranged at two ends of the telescopic driving in a transmission mode, and the driving gears are meshed with the racks;
the telescopic driving drives the main telescopic arm and the auxiliary telescopic arm to relatively slide in a telescopic manner through the driving gear and the rack.
Further, the guide wheel group comprises a first vertical guide wheel, a second vertical guide wheel, a first lifting rope, a second lifting rope, a first pair of wheel groups, a second transverse guide wheel, a second hanger guide wheel, a first transverse guide wheel and a first hanger guide wheel;
a first pair of wheel sets and a second pair of wheel sets are arranged on two sides of a bottom plate, close to one end of the vertical support frame, of the main telescopic arm, and a first vertical guide wheel and a second vertical guide wheel are respectively arranged on the guide wheel plate through a steerable wheel seat;
a second transverse guide wheel is arranged on one side of the bottom plate of the main telescopic arm, and a second hanger guide wheel is arranged in the middle of the bottom plate of the main telescopic arm;
a first transverse guide wheel is arranged on one side of the bottom plate of the auxiliary telescopic arm, and a first hanger guide wheel is arranged in the middle of the bottom plate of the auxiliary telescopic arm;
the first hanger guide wheel and the second hanger guide wheel are positioned on the central line of the telescopic arm;
one end of the first lifting rope is connected with the hanging frame, and then sequentially passes through the guide of the first hanging frame guide wheel, the first transverse guide wheel, the first pair of wheel sets and the first vertical guide wheel and is connected with the hoisting mechanism;
one end of the second lifting rope is connected with the hanging frame, and then sequentially passes through the second hanging frame guide wheel, the second transverse guide wheel, the second pair of wheel sets and the second vertical guide wheel to be connected with the hoisting mechanism.
Further, after the first cantilever and the second cantilever swing from the middle position to two sides, a certain included angle is formed between the telescopic arm and the first cantilever and between the telescopic arm and the second cantilever;
the first lifting rope passes through the middle of the first pair of wheel groups, the second lifting rope passes through the middle of the second pair of wheel groups, and the trend of the first lifting rope and the trend of the second lifting rope are changed through the first pair of wheel groups and the second pair of wheel groups so as to adapt to the included angle formed by the telescopic arm, the first cantilever and the second cantilever.
Further, the winding mechanism comprises a winding drive, a winding seat, a first winding drum and a second winding drum;
the winding device comprises a winding drum seat, a winding drum driving device and a clutch device, wherein the winding drum seat is supported on two sides of a first winding drum and a second winding drum, and the winding drum driving device respectively drives the first winding drum and the second winding drum to independently rotate/synchronously rotate;
the first lifting rope is wound on the first winding drum, and the second lifting rope is wound on the second winding drum;
when the main telescopic arm and the auxiliary telescopic arm are telescopic relatively, the winch drives the first winding drum to rotate independently;
when the load is synchronously lifted through the two hanging brackets, the winch drives the first winding drum and the second winding drum to synchronously rotate.
Further, the first vertical guide wheel and the second vertical guide wheel are located right above the hoisting mechanism, and the first vertical guide wheel, the second vertical guide wheel, the first pair of wheel sets, the second transverse guide wheel, the second hanger guide wheel, the first transverse guide wheel and the first hanger guide wheel are approximately located on the same horizontal plane.
Compared with the prior art, the invention provides the fixed-orientation cantilever crane for improving bridge construction safety, which has the following beneficial effects:
1. according to the invention, the first cantilever, the second cantilever, the vertical support frame and the directional substrate form a space parallelogram structure by arranging the first cantilever and the second cantilever which are spaced and parallel to each other, and the directional substrate is always parallel to the vertical support frame in the rotating process of the first cantilever and the second cantilever by utilizing the motion characteristic of the parallelogram, and the telescopic arm is fixedly arranged on the directional substrate, so that the orientation of the telescopic arm is always unchanged in the rotating process of the first cantilever and the second cantilever.
2. The telescopic arm of the invention respectively realizes the bearing of the long-strip load through the two independent ropes and the hanging frame, can avoid uncontrollable rotation after lifting and suspending the load, and simultaneously can ensure that the bearing direction of the load is always unchanged in the lifting and shifting process because the bearing direction of the telescopic arm is always unchanged, thereby being more convenient and safer in the load stacking, loading and shifting processes.
3. According to the invention, the first cantilever and the second cantilever are spatially staggered and parallel, and the first cantilever and the second cantilever have a certain interval in the vertical direction, so that after the first cantilever and the second cantilever are connected with the directional substrate, the vertical shearing load force born by the directional substrate can be increased, and the structural strength of the cantilever can be further improved.
4. The guide wheel group can synchronously/independently drive the two independent hanging brackets, and simultaneously, the two independent lifting ropes can downwards extend at the center line position of the telescopic arm through the second transverse guide wheel, the second hanging bracket guide wheel, the first transverse guide wheel and the first hanging bracket guide wheel, so that the two hanging brackets are positioned under the telescopic arm, and the whole telescopic arm is balanced in stress.
5. According to the invention, the two opposite wheel sets clamp the lifting rope from two directions and guide the lifting rope, so that when the cantilever and the telescopic arm form included angles in different directions relatively, the lifting rope can be guided from two directions through the opposite wheel sets.
Drawings
FIG. 1 is a schematic view of the overall structure of a jib crane of the present invention;
FIG. 2 is a schematic view of another direction of the jib crane of the present invention;
FIG. 3 is a schematic view of a directional substrate according to the present invention;
FIG. 4 is a schematic cross-sectional view of a guide wheel set of the present invention;
FIG. 5 is a schematic cross-sectional view of a telescoping arm of the present invention;
FIG. 6 is a top view of the present invention, wherein FIG. 6A is a diagram illustrating the swing to the left and FIG. 6B is a diagram illustrating the swing to the right;
in the figure: vertical support frame 1, first upper hinge support 101, first lower hinge support 102, second upper hinge support 103, second lower hinge support 104, guide pulley plate 105, boom rotation shaft 106, swing arm drive 107, first boom 2, first main beam 201, second main beam 202, cable reinforcement 203, second boom 3, guide pulley set 4, first vertical guide pulley 401, second vertical guide pulley 402, first hoist cable 403, second hoist cable 404, first pair of pulley sets 405, second pair of pulley sets 406, second horizontal guide pulley 407, second spreader guide pulley 408, first horizontal guide pulley 409, first spreader guide pulley 410, hoist mechanism 5, hoist drive 501, reel holder 502, first reel 503, second reel 504, directional substrate 6, substrate body 601, first substrate hinge holder 602, second substrate hinge support 603, second substrate rotation shaft 604, first substrate rotation shaft 605, telescopic arm 7, main telescopic arm 701, auxiliary telescopic arm 702, accommodation hole 703, rack 704, drive gear 705, telescopic drive 706, 8, load 9.
Description of the embodiments
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is described in detail below with reference to fig. 1-6, and the fixed-direction cantilever crane for bridge construction of the invention comprises a vertical support frame 1, a first cantilever 2, a second cantilever 3, a guide wheel set 4, a hoisting mechanism 5, a directional substrate 6 and a telescopic arm 7, wherein the vertical support frame 1 is rotatably connected with the first cantilever 2 and the second cantilever 3 through a hinged support, and the first cantilever 2 and the second cantilever 3 have a certain interval in the transverse direction of the vertical support frame 1 and also have a certain interval in the vertical direction of the vertical support frame 1;
the upper side of one end of the orientation substrate 6 is rotationally connected with the first cantilever 2, and the lower side of the other end of the orientation substrate 6 is rotationally connected with the second cantilever 3;
the telescopic boom 7 is fixedly arranged on the directional substrate 6, the telescopic boom 7 comprises a main telescopic boom 701 and an auxiliary telescopic boom 702, a hanging bracket 8 is connected below the main telescopic boom 701 through a second lifting rope 404, and another hanging bracket 8 is connected below the auxiliary telescopic boom 702 through a first lifting rope 403;
the two hangers 8 respectively bear two ends of a long-strip-shaped load 9, the first lifting rope 403 and the second lifting rope 404 are connected with the hoisting mechanism 5 after being guided by the guide wheel group 4, and the load 9 is driven to lift by the hoisting mechanism 5;
the main telescopic arm 701 and the auxiliary telescopic arm 702 realize relative telescopic movement through a linear driving mechanism, so that the distance between the two hanging brackets 8 can be changed, and the load 9 with different lengths can be lifted;
the vertical support frame 1, the first cantilever 2, the second cantilever 3 and the directional substrate 6 form a space quadrilateral structure, the first cantilever 2 and the second cantilever 3 are driven to rotate through the rotary driving mechanism, the end face of the directional substrate 6 is always parallel to the end face of the vertical support frame 1 in the rotating process, and the telescopic arm 7 and the load 9 borne below the telescopic arm are kept in a fixed orientation in the rotating process.
Further, the structures of the first cantilever 2 and the second cantilever 3 are similar, each of the first cantilever 2 and the second cantilever 3 comprises a first main beam 201, a second main beam 202 and a cable-stayed reinforcing frame 203, the cable-stayed reinforcing frames 203 of the first cantilever 2 are fixedly connected with the upper sides of the first main beam 201 and the second main beam 202, and the cable-stayed reinforcing frames 203 of the second cantilever 3 are fixedly connected with the lower sides of the first main beam 201 and the second main beam 202;
the vertical support frame 1 comprises a first upper hinge seat 101, a first lower hinge seat 102, a second upper hinge seat 103, a second lower hinge seat 104, a guide wheel plate 105, a cantilever rotating shaft 106 and a swing arm driving 107;
the first upper hinge support 101, the first lower hinge support 102, the second upper hinge support 103, the second lower hinge support 104 and the guide wheel plate 105 are all arranged on the same end face of the vertical support frame 1, the distance between the first upper hinge support 101 and the first lower hinge support 102 is L, and the distance between the second upper hinge support 103 and the second lower hinge support 104 is L;
constructing an XY axis coordinate system on the end face of the vertical support frame 1, wherein the position of the guide wheel plate 105 is taken as an original point, the position coordinate of the first lower hinge seat 102 is (-A, H), the coordinate position of the first upper hinge seat 101 is (-A, H+L), the position coordinate of the second upper hinge seat 103 is (A-H), and the position coordinate of the second lower hinge seat 104 is (A-H-L);
wherein a is the horizontal distance between the first lower hinge support 102 and the guide plate 105, and the second upper hinge support 103 and the guide plate 105, H is the vertical distance between the first lower hinge support 102 and the guide plate 105, and the second upper hinge support 103 and the guide plate 105, and L is the vertical distance between the first upper hinge support 101 and the first lower hinge support 102, and the second upper hinge support 103 and the second lower hinge support 104.
The hinge seat on the cable-stayed reinforcement 203 of the first cantilever 2 corresponds to the first upper hinge seat 101, the hinge seat on the main beam of the first cantilever 2 corresponds to the first lower hinge seat 102, the hinge seat on the cable-stayed reinforcement 203 of the second cantilever 3 corresponds to the second lower hinge seat 104, and the hinge seat on the main beam of the second cantilever 3 corresponds to the second upper hinge seat 103;
the first cantilever 2 and the second cantilever 3 are respectively and rotatably connected with the first upper hinged support 101, the first lower hinged support 102, the second upper hinged support 103 and the second lower hinged support 104 through a cantilever rotating shaft 106, are in transmission connection with the cantilever rotating shaft 106 through a swinging arm driving 107, and are driven to horizontally rotate through the swinging arm driving 107.
Further, the orientation substrate 6 includes a substrate body 601, a first substrate hinge 602, a second substrate hinge 603, a second substrate rotating shaft 604, and a first substrate rotating shaft 605;
the first substrate hinge base 602 is located at an upper side of one end of the substrate body 601, and the second substrate hinge base 603 is located at a lower side of both ends of the substrate body 601;
the main beam of the first cantilever 2 is rotatably connected with the first substrate hinged support 602 through a first substrate rotating shaft 605, and the main beam of the second cantilever 3 is rotatably connected with the second substrate hinged support 603 through a second substrate rotating shaft 604;
and the second substrate rotating shaft 604, the first substrate rotating shaft 605 and the two cantilever rotating shafts 106 on the first cantilever 2 and the second cantilever 3 are parallel to each other, and the position coordinates of the first lower hinge support 102, the second upper hinge support 103, the first substrate hinge support 602 and the second substrate hinge support 603 form a space parallelogram structure.
Further, the telescopic arm 7 further comprises a containing hole 703, a rack 704, a driving gear 705 and a telescopic driving 706;
the main telescopic arm 701 is fixedly arranged on the substrate body 601, the extending direction of the main telescopic arm 701 is perpendicular to the end surface of the substrate body 601, and the main telescopic arm 701 is provided with a subsidiary telescopic arm 702 capable of telescopic sliding;
a bottom plate of the auxiliary telescopic arm 702 is provided with a containing hole 703, a telescopic drive 706 is arranged on the bottom plate of the main telescopic arm 701 and in a region corresponding to the containing hole 703, racks 704 are arranged on the bottom plate of the auxiliary telescopic arm 702 and positioned at two sides of the containing hole 703, drive gears 705 are arranged at two ends of the telescopic drive 706 in a transmission manner, and the drive gears 705 are meshed with the racks 704;
the telescopic drive 706 drives the main telescopic arm 701 and the auxiliary telescopic arm 702 to slide in a telescopic manner relative to each other through the drive gear 705 and the rack 704.
Further, the guide wheel set 4 includes a first vertical guide wheel 401, a second vertical guide wheel 402, a first hoisting rope 403, a second hoisting rope 404, a first pair of wheel sets 405, a second pair of wheel sets 406, a second transverse guide wheel 407, a second hanger guide wheel 408, a first transverse guide wheel 409, and a first hanger guide wheel 410;
a first pair of wheel sets 405 and a second pair of wheel sets 406 are arranged on two sides of the bottom plate of the main telescopic arm 701, which is close to one end of the vertical support frame 1, and a first vertical guide wheel 401 and a second vertical guide wheel 402 are respectively arranged on the guide wheel plate 105 through a steerable wheel seat;
a second transverse guide wheel 407 is arranged at one side of the bottom plate of the main telescopic arm 701, and a second hanger guide wheel 408 is arranged at the middle part of the bottom plate of the main telescopic arm 701;
a first transverse guide wheel 409 is arranged at one side of the bottom plate of the auxiliary telescopic arm 702, and a first hanger guide wheel 410 is arranged at the middle part of the bottom plate of the auxiliary telescopic arm 702;
the first hanger guide wheel 410 and the second hanger guide wheel 408 are positioned on the middle line of the telescopic arm 7;
one end of the first hoisting rope 403 is connected with the hanger 8, and then sequentially passes through the first hanger guide wheel 410, the first transverse guide wheel 409, the first pair of wheel sets 405 and the first vertical guide wheel 401 to be guided and then connected with the hoisting mechanism 5;
one end of the second hoisting rope 404 is connected to the hanger 8, and then sequentially passes through the second hanger guide wheel 408, the second transverse guide wheel 407, the second pair of wheel sets 406, and the second vertical guide wheel 402, and then is connected to the hoisting mechanism 5.
As shown in fig. 6, after the first cantilever 2 and the second cantilever 3 swing from the middle position to two sides, the telescopic arm 7 forms a certain included angle with the first cantilever 2 and the second cantilever 3;
the first lifting rope 403 passes through the middle of the first pair of wheel sets 405, the second lifting rope 404 passes through the middle of the second pair of wheel sets 406, and the trend of the first lifting rope 403 and the second lifting rope 404 is changed through the first pair of wheel sets 405 and the second pair of wheel sets 406 so as to adapt to the included angle formed by the telescopic arm 7 and the first cantilever arm 2 and the second cantilever arm 3.
Further, the winding mechanism 5 comprises a winding drive 501, a winding drum seat 502, a first winding drum 503 and a second winding drum 504;
the spool seat 502 is supported on two sides of the first spool 503 and the second spool 504, and the winding drive 501 drives the first spool 503 and the second spool 504 to rotate independently/synchronously through a clutch device;
the first hoisting rope 403 is wound on the first reel 503, and the second hoisting rope 404 is wound on the second reel 504;
when the main telescopic arm 701 and the auxiliary telescopic arm 702 are telescopic relatively, the winch drive 501 drives the first winding drum 503 to rotate independently;
when the load 9 is lifted and lowered synchronously by the two hangers 8, the winch drive 501 drives the first reel 503 and the second reel 504 to rotate synchronously.
Further, the first vertical guide wheel 401 and the second vertical guide wheel 402 are located right above the hoisting mechanism 5, and the first vertical guide wheel 401, the second vertical guide wheel 402, the first pair of wheel sets 405, the second pair of wheel sets 406, the second transverse guide wheel 407, the second hanger guide wheel 408, the first transverse guide wheel 409 and the first hanger guide wheel 410 are approximately located on the same horizontal plane.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an improve orientation cantilever crane of bridge construction safety, includes vertical support frame (1), first cantilever (2), second cantilever (3), guide pulley group (4), hoist mechanism (5), directional base plate (6) and flexible arm (7), its characterized in that:
the vertical support frame (1) is rotatably connected with a first cantilever (2) and a second cantilever (3) through a hinged support, the first cantilever (2) and the second cantilever (3) have a certain interval in the transverse direction of the vertical support frame (1), and also have a certain interval in the vertical direction of the vertical support frame (1);
the upper side of one end of the orientation substrate (6) is rotationally connected with the first cantilever (2), and the lower side of the other end of the orientation substrate (6) is rotationally connected with the second cantilever (3);
the telescopic boom (7) is fixedly arranged on the directional substrate (6), the telescopic boom (7) comprises a main telescopic boom (701) and an auxiliary telescopic boom (702), a hanging bracket (8) is connected below the main telescopic boom (701) through a second lifting rope (404), and another hanging bracket (8) is connected below the auxiliary telescopic boom (702) through a first lifting rope (403);
the two hanging frames (8) respectively bear two ends of a long-strip-shaped load (9), the first lifting rope (403) and the second lifting rope (404) are connected with the hoisting mechanism (5) after being guided by the guide wheel group (4), and the load (9) is driven to lift by the hoisting mechanism (5);
the main telescopic arm (701) and the auxiliary telescopic arm (702) realize relative telescopic movement through a linear driving mechanism, so that the distance between the two hanging brackets (8) can be changed, and the load (9) with different lengths can be lifted.
2. The directional cantilever crane for improving bridge construction safety according to claim 1, wherein: the vertical support frame (1), the first cantilever (2), the second cantilever (3) and the directional substrate (6) form a space quadrilateral structure, the first cantilever (2) and the second cantilever (3) are driven to rotate through the rotary driving mechanism, the end face of the directional substrate (6) is always parallel to the end face of the vertical support frame (1) in the rotating process, and the telescopic arm (7) and a load (9) borne below the telescopic arm keep a fixed orientation in the rotating process;
the structure of the first cantilever (2) and the structure of the second cantilever (3) are similar, the first cantilever comprises a first main beam (201), a second main beam (202) and a diagonal reinforcement frame (203), the diagonal reinforcement frame (203) of the first cantilever (2) is fixedly connected with the upper sides of the first main beam (201) and the second main beam (202), and the diagonal reinforcement frame (203) of the second cantilever (3) is fixedly connected with the lower sides of the first main beam (201) and the second main beam (202);
the vertical support frame (1) comprises a first upper hinge seat (101), a first lower hinge seat (102), a second upper hinge seat (103), a second lower hinge seat (104), a guide wheel plate (105), a cantilever rotating shaft (106) and a swing arm driving device (107);
the first upper hinge support (101), the first lower hinge support (102), the second upper hinge support (103), the second lower hinge support (104) and the guide wheel plate (105) are all arranged on the same end face of the vertical support frame (1), the distance between the first upper hinge support (101) and the first lower hinge support (102) is L, and the distance between the second upper hinge support (103) and the second lower hinge support (104) is L;
constructing an XY axis coordinate system on the end face of the vertical support frame (1), wherein the position of the guide wheel plate (105) is taken as an original point, the position coordinate of the first lower hinge support (102) is (-A, H), the coordinate position of the first upper hinge support (101) is (-A, H+L), the position coordinate of the second upper hinge support (103) is (A-H), and the position coordinate of the second lower hinge support (104) is (A-H-L);
the hinge seat on the inclined-pulling reinforcing frame (203) of the first cantilever (2) corresponds to the first upper hinge seat (101), the hinge seat on the main beam of the first cantilever (2) corresponds to the first lower hinge seat (102), the hinge seat on the inclined-pulling reinforcing frame (203) of the second cantilever (3) corresponds to the second lower hinge seat (104), and the hinge seat on the main beam of the second cantilever (3) corresponds to the second upper hinge seat (103);
the first cantilever (2) and the second cantilever (3) are respectively connected with the first upper hinged support (101), the first lower hinged support (102), the second upper hinged support (103) and the second lower hinged support (104) in a rotatable mode through a cantilever rotating shaft (106), are in transmission connection with the cantilever rotating shaft (106) through a swinging arm driving device (107), and are driven to horizontally rotate through the swinging arm driving device (107).
3. The directional cantilever crane for improving bridge construction safety according to claim 2, wherein:
the directional substrate (6) comprises a substrate body (601), a first substrate hinged support (602), a second substrate hinged support (603), a second substrate rotating shaft (604) and a first substrate rotating shaft (605);
the first substrate hinge support (602) is located at the upper side of one end of the substrate body (601), and the second substrate hinge support (603) is located at the lower sides of two ends of the substrate body (601);
the main beam of the first cantilever (2) is rotatably connected with the first substrate hinged support (602) through a first substrate rotating shaft (605), and the main beam of the second cantilever (3) is rotatably connected with the second substrate hinged support (603) through a second substrate rotating shaft (604);
and the second substrate rotating shaft (604), the first substrate rotating shaft (605) and the two cantilever rotating shafts (106) on the first cantilever (2) and the second cantilever (3) are mutually parallel, and the position coordinates of the first lower hinged support (102), the second upper hinged support (103), the first substrate hinged support (602) and the second substrate hinged support (603) form a space parallelogram structure.
4. A directional cantilever crane for improving bridge construction safety according to claim 3, wherein:
the telescopic arm (7) further comprises a containing hole (703), a rack (704), a driving gear (705) and a telescopic driving device (706);
the main telescopic arm (701) is fixedly arranged on the substrate body (601), the extending direction of the main telescopic arm (701) is perpendicular to the end face of the substrate body (601), and the main telescopic arm (701) is provided with a telescopic sliding auxiliary telescopic arm (702);
a containing hole (703) is formed in the bottom plate of the auxiliary telescopic arm (702), telescopic driving (706) is arranged on the bottom plate of the main telescopic arm (701) and in a region corresponding to the containing hole (703), racks (704) are arranged on the bottom plate of the auxiliary telescopic arm (702) and positioned on two sides of the containing hole (703), driving gears (705) are arranged at two ends of the telescopic driving (706) in a transmission mode, and the driving gears (705) are meshed with the racks (704);
the telescopic drive (706) drives the main telescopic arm (701) and the auxiliary telescopic arm (702) to relatively slide in a telescopic manner through the drive gear (705) and the rack (704).
5. The directional cantilever crane for improving bridge construction safety according to claim 4, wherein:
the guide wheel set (4) comprises a first vertical guide wheel (401), a second vertical guide wheel (402), a first lifting rope (403), a second lifting rope (404), a first pair of wheel sets (405), a second pair of wheel sets (406), a second transverse guide wheel (407), a second hanger guide wheel (408), a first transverse guide wheel (409) and a first hanger guide wheel (410);
a first pair of wheel sets (405) and a second pair of wheel sets (406) are arranged on two sides of a bottom plate, close to one end of the vertical support frame (1), of the main telescopic arm (701), and a first vertical guide wheel (401) and a second vertical guide wheel (402) are respectively arranged on the guide wheel plate (105) through a steerable wheel seat;
a second transverse guide wheel (407) is arranged on one side of the bottom plate of the main telescopic arm (701), and a second hanger guide wheel (408) is arranged in the middle of the bottom plate of the main telescopic arm (701);
a first transverse guide wheel (409) is arranged on one side of the bottom plate of the auxiliary telescopic arm (702), and a first hanger guide wheel (410) is arranged in the middle of the bottom plate of the auxiliary telescopic arm (702);
the first hanger guide wheel (410) and the second hanger guide wheel (408) are positioned on the central line of the telescopic arm (7);
one end of the first lifting rope (403) is connected with the lifting frame (8), and then sequentially passes through the first lifting frame guide wheel (410), the first transverse guide wheel (409), the first pair of wheel sets (405) and the first vertical guide wheel (401) to be guided and then connected with the lifting mechanism (5);
one end of the second lifting rope (404) is connected with the lifting frame (8), and then sequentially passes through the second lifting frame guide wheel (408), the second transverse guide wheel (407), the second pair of wheel sets (406) and the second vertical guide wheel (402) to be guided and then is connected with the lifting mechanism (5).
6. The directional cantilever crane for improving bridge construction safety according to claim 5, wherein:
after the first cantilever (2) and the second cantilever (3) swing from the middle position to two sides, the telescopic arm (7) forms a certain included angle with the first cantilever (2) and the second cantilever (3);
the first lifting rope (403) passes through the middle of the first pair of wheel sets (405), the second lifting rope (404) passes through the middle of the second pair of wheel sets (406), and the trend of the first lifting rope (403) and the trend of the second lifting rope (404) are changed through the first pair of wheel sets (405) and the second pair of wheel sets (406) so as to adapt to the included angle formed by the telescopic arm (7) and the first cantilever (2) and the second cantilever (3).
7. The directional cantilever crane for improving bridge construction safety according to claim 6, wherein:
the hoisting mechanism (5) comprises a hoisting drive (501), a reel seat (502), a first reel (503) and a second reel (504);
the winding drum seat (502) is supported on two sides of the first winding drum (503) and the second winding drum (504), and the winding drive (501) drives the first winding drum (503) and the second winding drum (504) to independently rotate/synchronously rotate through a clutch device respectively;
the first lifting rope (403) is wound on the first winding drum (503), and the second lifting rope (404) is wound on the second winding drum (504);
when the main telescopic arm (701) and the auxiliary telescopic arm (702) are telescopic relatively, the winch drive (501) drives the first winding drum (503) to rotate independently;
when the load (9) is synchronously lifted through the two hanging brackets (8), the winch driving device (501) drives the first winding drum (503) and the second winding drum (504) to synchronously rotate.
8. The directional cantilever crane for improving bridge construction safety according to claim 7, wherein:
the first vertical guide wheel (401) and the second vertical guide wheel (402) are located right above the hoisting mechanism (5), and the first vertical guide wheel (401), the second vertical guide wheel (402), the first pair of wheel sets (405), the second pair of wheel sets (406), the second transverse guide wheel (407), the second hanger guide wheel (408), the first transverse guide wheel (409) and the first hanger guide wheel (410) are approximately located on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310293630.1A CN116216534A (en) | 2023-03-24 | 2023-03-24 | Fixed-orientation cantilever crane for improving bridge construction safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310293630.1A CN116216534A (en) | 2023-03-24 | 2023-03-24 | Fixed-orientation cantilever crane for improving bridge construction safety |
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| Publication Number | Publication Date |
|---|---|
| CN116216534A true CN116216534A (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310293630.1A Pending CN116216534A (en) | 2023-03-24 | 2023-03-24 | Fixed-orientation cantilever crane for improving bridge construction safety |
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| CN (1) | CN116216534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117088272A (en) * | 2023-09-06 | 2023-11-21 | 安徽欧力德汽车配件有限公司 | Auto-parts intelligence hoist and mount conveyor |
-
2023
- 2023-03-24 CN CN202310293630.1A patent/CN116216534A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117088272A (en) * | 2023-09-06 | 2023-11-21 | 安徽欧力德汽车配件有限公司 | Auto-parts intelligence hoist and mount conveyor |
| CN117088272B (en) * | 2023-09-06 | 2024-02-06 | 安徽欧力德汽车配件有限公司 | Auto-parts intelligence hoist and mount conveyor |
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