CN114852844B - Lifting hook for hoisting box girder steel reinforcement framework - Google Patents
Lifting hook for hoisting box girder steel reinforcement framework Download PDFInfo
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- CN114852844B CN114852844B CN202210467661.XA CN202210467661A CN114852844B CN 114852844 B CN114852844 B CN 114852844B CN 202210467661 A CN202210467661 A CN 202210467661A CN 114852844 B CN114852844 B CN 114852844B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
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Abstract
The invention provides a lifting hook for lifting a box girder steel bar framework, which comprises a truss and a plurality of suspension assemblies, wherein the suspension assemblies are arranged at the bottom of the truss at intervals, each suspension assembly comprises a left suspension arm and a right suspension arm, the left suspension arm and the right suspension arm are symmetrically arranged at the bottom of the truss, movable suspension heads are arranged on the left suspension arm and the right suspension arm respectively, each suspension head comprises a mounting plate, a front lifting hook, a rear lifting hook, a first gear, a second gear, a driving gear, a first rotating shaft, a second rotating shaft and a driving rotating shaft, and the front lifting hook and the rear lifting hook are arranged on two sides of the mounting plate respectively. The problems that when the steel reinforcement framework is hoisted in a transmission mode, the steel reinforcement framework is easy to deform, the structure of the steel reinforcement framework is influenced, the connection is complex and slow, the fault tolerance rate is low, the working efficiency is low and the like are solved.
Description
Technical Field
The invention relates to the technical field of box girder steel reinforcement framework hoisting, in particular to a lifting hook for hoisting a box girder steel reinforcement framework.
Background
The box girder is one of middle girders in bridge engineering, has a hollow inner part, and flanges at two sides of the upper part of the box girder are similar to a box, so the box girder is named. Firstly, binding a formed steel reinforcement framework on a forming die of an independent site, arranging a corrugated pipe for forming a prestressed tendon pore passage, then installing a special steel template of a beam body, pouring concrete and maintaining, performing prestressed rope penetrating after the strength of the concrete reaches design requirements, tensioning and anchoring the prestressed tendon in sequence, and then performing processes such as grouting, anchor sealing and the like to complete the prefabrication of the beam body.
The box girder steel reinforcement framework mainly comprises a U-shaped underframe and a top plate frame, and most of the box girder steel reinforcement frameworks adopt a crane or a gantry crane, a lifting lug capable of being lifted is not arranged on a common box girder steel reinforcement framework, usually, a plurality of steel ropes are sleeved on the box girder steel reinforcement framework, and then the box girder steel reinforcement framework is lifted by the crane through steel ropes; however, the steel ropes are flexible structures, and the box girder steel reinforcement framework is extremely heavy, so that the steel ropes easily deform the lifting points of the box girder steel reinforcement framework, and the structural stability of the box girder is influenced; in addition, box girder framework of steel reinforcement needs the level to be placed on the child mould to avoid the friction and collision, but because traditional method of hanging warp easily, be difficult to guarantee promptly that the focus of rising is located lifting hook department, and then makes box girder framework of steel reinforcement slope easily, brings the difficulty for box girder framework of steel reinforcement's location and installation, and the fault-tolerant rate is low, needs constantly to adjust. And every time all be artifical and bind and dismantle, increased work load, reduced work efficiency, the framework of steel reinforcement of different sizes moreover, the interval between main muscle and the vice muscle is also different, leads to being difficult to pass and bind.
Disclosure of Invention
The invention aims to provide a lifting hook for lifting a box girder reinforcement cage, which solves the problems that the reinforcement cage is easy to deform, the structure of the reinforcement cage is influenced, the connection is complex and slow, the fault tolerance rate is low, the working efficiency is low and the like when the reinforcement cage is lifted in a transmission manner.
The embodiment of the invention is realized by the following technical scheme: a lifting hook for lifting a box girder steel reinforcement framework comprises a truss and a plurality of suspension assemblies, wherein the suspension assemblies are arranged at the bottom of the truss at intervals, each suspension assembly comprises a left suspension arm and a right suspension arm, the left suspension arm and the right suspension arm are symmetrically arranged at the bottom of the truss, and movable suspension heads are arranged on the left suspension arm and the right suspension arm;
the suspension head comprises a mounting plate, a front lifting hook, a rear lifting hook, a first gear, a second gear, a driving gear, a first rotating shaft, a second rotating shaft and a driving rotating shaft, wherein the front lifting hook and the rear lifting hook are respectively arranged on two sides of the mounting plate, the first rotating shaft, the second rotating shaft and the driving rotating shaft are rotationally arranged on the mounting plate, two ends of the first rotating shaft, the second rotating shaft and the driving rotating shaft extend out of two sides of the mounting plate, the first gear, the second gear and the driving gear are respectively sleeved on the first rotating shaft, the second rotating shaft and the driving rotating shaft, the first gear is meshed with the second gear, and the driving gear is meshed with the upper part of the first gear;
the front lifting hook is characterized by further comprising a first driving rod and a first auxiliary rod, wherein the first driving rod and the first auxiliary rod are arranged in parallel, one end of the first driving rod is connected with the first rotating shaft, the other end of the first driving rod is hinged to the upper end of the front lifting hook, one end of the first auxiliary rod is hinged to the bottom of the mounting plate, and the other end of the first auxiliary rod is hinged to the middle of the front lifting hook;
still include second actuating lever and second auxiliary rod, second actuating lever and second auxiliary rod parallel arrangement, second actuating lever one end with the second pivot is connected, the second actuating lever other end with back lifting hook upper end is articulated, second auxiliary rod one end with the mounting panel bottom is articulated, the second auxiliary rod other end with back lifting hook middle part is articulated.
Furthermore, the front hook and the rear hook are parallel to the mounting plate, the first driving rod is hinged to one side, far away from the mounting plate, of the front hook, and the first auxiliary rod is hinged to one side, close to the mounting plate, of the front hook;
the second actuating lever with the back lifting hook is kept away from mounting panel one side is articulated, the second auxiliary rod with the back lifting hook is close to mounting panel one side is articulated.
Furthermore, the left suspension arm comprises an outer support plate, an inner support plate, a screw rod, a guide rod and a sliding seat, the outer support plate and the inner support plate are arranged on the outer side and the inner side of the truss respectively, two ends of the screw rod are connected with the outer support plate and the inner support plate in a rotating mode respectively, the guide rod is arranged above the screw rod, two ends of the guide rod are connected with the inner support plate and the outer support plate respectively, the sliding seat is provided with a threaded hole and a sliding hole respectively, the screw rod is arranged in the threaded hole in a penetrating mode in a matching mode, the guide rod is arranged in the sliding hole in a penetrating mode, the suspension head is arranged at the bottom of the sliding seat, and the structure of the right suspension arm is the same as that of the left suspension arm.
The left suspension arm and the right suspension arm are sleeved with a first bevel gear, a second bevel gear, a main driving shaft and a rear supporting plate respectively, the first bevel gear and the second bevel gear are sleeved on screw rods of the left suspension arm and the right suspension arm respectively, two ends of the rear supporting plate are connected with inner supporting plates of the left suspension arm and the right suspension arm respectively, the main driving shaft is rotatably arranged on the rear supporting plate, the main bevel gear is sleeved on the main driving shaft, and the main bevel gear is meshed with the first bevel gear and the second bevel gear respectively.
The suspension head driving mechanism further comprises a first connecting rod and a first universal joint, the first universal joint is arranged at each of two ends of the first connecting rod, and the driving rotating shafts of two adjacent suspension heads are in transmission connection through the first universal joints at the two ends of the first connecting rod respectively.
Furthermore, the two-stage transmission device further comprises a second connecting rod and a second universal joint, wherein the second universal joint is arranged at each of two ends of the second connecting rod, and the two adjacent main driving shafts are in transmission connection with the second universal joints at the two ends of the second connecting rod respectively.
Furthermore, be located it is provided with little fixed plate to slope on the slide of truss tip, it is provided with little regulating stem to rotate on the little fixed plate, little regulating stem with little fixed plate is perpendicular, little regulating stem one end is passed through first universal joint with the transmission of drive pivot is connected, the little regulating stem other end is provided with the small turntable.
Furthermore, truss one end slope is provided with big fixed plate, it is provided with big adjusting lever to rotate on the big fixed plate, big adjusting lever with big fixed plate is perpendicular, big adjusting lever one end is passed through second universal joint with the main drive axle transmission is connected, big adjusting lever other end is provided with the big carousel.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
the invention has reasonable design and simple structure, and the front lifting hook and the rear lifting hook can hook two different main reinforcements in a back-to-back manner, and when the distance between the adjacent main reinforcements is longer, the state of the formed graph can be adjusted firstly, so that the front lifting hook and the rear lifting hook are opposite to hook one main reinforcement together. Simultaneously because preceding lifting hook and back lifting hook are located the both sides of mounting panel respectively, can also make preceding lifting hook and back lifting hook be located two adjacent holes, dislocation looks hook, more stable and practical, also not worry that framework of steel reinforcement can slide etc. a plurality of suspension assembly catches on framework of steel reinforcement simultaneously, it is parallel with the truss to enable whole framework of steel reinforcement, guarantee hanging the in-process of changeing, framework of steel reinforcement can remain the level in the error band all the time, can not crooked or atress inequality, lead to framework of steel reinforcement to warp etc., the level is put down when placing, also can not have the part and does not stretch out and produce friction etc. with other positions.
When the front lifting hook and the rear lifting hook need to be taken out, the truss is only required to be lowered, the front lifting hook and the rear lifting hook can automatically fall off under the action of gravity, the front lifting hook and the rear lifting hook are mutually closed to form a superposed image state from the lower end through the rotation driving rotating shaft, and finally, the front lifting hook and the rear lifting hook are vertically lifted. The connection and the separation are very simple, the working efficiency and the reliability are greatly improved, and the labor and the time cost are saved. The small rotary disc is rotated, the small rotary disc drives the small adjusting rod to rotate, the small adjusting rod, the first universal joints and the first connecting rods are matched to drive the driving rotating shaft, the driving gear is driven to rotate, synchronous adjustment of the front lifting hook and the rear lifting hook is achieved, the steel bar framework is hooked or loosened, the working efficiency is improved, when the truss and the steel bar framework are not aligned or incline due to inaccurate gravity center, separation and hooking can be achieved rapidly, then re-adjustment is achieved, and the fault tolerance rate and the working efficiency are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a lifting hook for hoisting a box girder steel reinforcement framework, provided by the invention;
fig. 2 is a left side view of the lifting hook for lifting the box girder steel reinforcement framework provided by the invention;
FIG. 3 is an enlarged view of the point A in FIG. 1;
fig. 4 is a front cross-sectional view of a suspension head and a sliding seat of the lifting hook for hoisting the box girder steel reinforcement framework provided by the invention;
fig. 5 is a left side view of a suspension head and a sliding seat of the lifting hook for hoisting the box girder steel reinforcement framework provided by the invention;
fig. 6 is a right side view of a suspension head and a slide seat of the lifting hook for lifting the box girder steel reinforcement framework provided by the invention;
fig. 7 is a schematic top view of the connection between two adjacent driving shafts of the lifting hook for lifting a box girder steel reinforcement framework provided by the invention;
fig. 8 is a schematic top view illustrating connection between two adjacent main driving shafts of the lifting hook for lifting a box girder steel reinforcement framework provided by the invention;
fig. 9 is a schematic view of a suspension head of the lifting hook for lifting a box girder steel reinforcement framework provided by the invention;
fig. 10 is a schematic view of a suspension head of the lifting hook for lifting a box girder steel reinforcement framework provided by the invention;
an icon: 1. truss, 2, left suspension arm, 3, right suspension arm, 4, suspension head, 401, mounting plate, 402, front suspension hook, 403, rear suspension hook, 404, first gear, 405, second gear, 406, driving gear, 407, first rotating shaft, 408, second rotating shaft, 409, driving rotating shaft, 410 first driving rod, 411, first auxiliary rod, 412, second driving rod, 413, second auxiliary rod, 5, outer support plate, 6, inner support plate, 7, screw, 8, guide rod, 9, sliding seat, 10, first bevel gear, 11, second bevel gear, 12, main bevel gear, 13, main driving shaft, 14, rear support plate, 15, first connecting rod, 16, first universal joint, 17, second connecting rod, 18, second universal joint, 19, small fixing plate, 20, small adjusting rod, 21, small rotating disk, 22, large fixing plate, 23, large adjusting rod, 24, large rotating disk.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 10, the present embodiment provides a lifting hook for lifting a box girder steel bar framework, including a truss 1 and a plurality of suspension assemblies, where the suspension assemblies are arranged at the bottom of the truss 1 at intervals, each suspension assembly includes a left suspension arm 2 and a right suspension arm 3, the left suspension arm 2 and the right suspension arm 3 are symmetrically arranged at the bottom of the truss 1, and both the left suspension arm 2 and the right suspension arm 3 are provided with movable suspension heads 4;
the suspension head 4 comprises a mounting plate 401, a front hook 402, a rear hook 403, a first gear 404, a second gear 405, a driving gear 406, a first rotating shaft 407, a second rotating shaft 408 and a driving rotating shaft 409, wherein the front hook 402 and the rear hook 403 are respectively arranged on two sides of the mounting plate 401, the first rotating shaft 407, the second rotating shaft 408 and the driving rotating shaft 409 are all rotatably arranged on the mounting plate 401, two ends of the first rotating shaft 407, the second rotating shaft 408 and the driving rotating shaft 409 extend out of two sides of the mounting plate 401, the first gear 404, the second gear 405 and the driving gear 406 are respectively sleeved on the first rotating shaft 407, the second rotating shaft 408 and the driving rotating shaft 409, the first gear 404 is meshed with the second gear 405, and the driving gear 406 is meshed with the upper part of the first gear 404;
the lifting device further comprises a first driving rod 410 and a first auxiliary rod 411, wherein the first driving rod 410 and the first auxiliary rod 411 are arranged in parallel, one end of the first driving rod 410 is connected with the first rotating shaft 407, the other end of the first driving rod 410 is hinged with the upper end of the front lifting hook 402, one end of the first auxiliary rod 411 is hinged with the bottom of the mounting plate 401, and the other end of the first auxiliary rod 411 is hinged with the middle of the front lifting hook 402;
the lifting device further comprises a second driving rod 412 and a second auxiliary rod 413, the second driving rod 412 and the second auxiliary rod 413 are arranged in parallel, one end of the second driving rod 412 is connected with the second rotating shaft 408, the other end of the second driving rod 412 is hinged to the upper end of the rear hook 403, one end of the second auxiliary rod 413 is hinged to the bottom of the mounting plate 401, and the other end of the second auxiliary rod 413 is hinged to the middle of the rear hook 403.
The front hook 402 and the rear hook 403 are both parallel to the mounting plate 401, the first driving rod 410 is hinged with one side of the front hook 402, which is far away from the mounting plate 401, and the first auxiliary rod 411 is hinged with one side of the front hook 402, which is close to the mounting plate 401;
the second driving rod 412 is hinged to the side of the rear hook 403 away from the mounting plate 401, and the second auxiliary rod 413 is hinged to the side of the rear hook 403 close to the mounting plate 401.
As shown in fig. 1-10, in the actual usage process, a crane or a gantry crane is used to hoist a truss 1 horizontally, so as to align the truss 1 along the placement direction of the steel reinforcement framework as much as possible, when the truss is lowered to be connected with the steel reinforcement framework, the orientation of the truss 1 can be adjusted by manually slightly rotating the truss 1, and the distances between the hanging heads 4 respectively positioned on the left hanging arm 2 and the right hanging arm 3 are adjusted according to the width of the steel reinforcement framework, the main ribs of the steel reinforcement framework are generally thicker and have the same length as the steel reinforcement framework, meanwhile, the auxiliary ribs are sleeved around a plurality of main ribs, so that the main ribs are the best hoisting positions, when the hole between the main ribs is smaller, the hanging heads can be adjusted to be in the state of fig. 9, at this time, the front hook 402 and the rear hook 403 are overlapped to facilitate entering from the hole, then the front hook 402 and the rear hook 403 are far away from each other along the facing positions of the hook mouths, the grooves of the front hook 402 and the rear hook 403 reach the main ribs on both sides of the hole, and when the main ribs abut against the main hook, the main hook 1 directly hoists and the whole steel reinforcement framework can be hoisted.
During the concrete implementation, through rotating drive pivot 409, and then drive gear 406 rotates, drive gear 406 drives first gear 404 and rotates, first gear 404 drives second gear 405 and rotates simultaneously, first actuating lever 410 drives front hook 402 and rotates simultaneously, because first actuating lever 410 is articulated with front hook 402, front hook 402's middle part articulates simultaneously has first auxiliary rod 411, first auxiliary rod 411 is articulated with mounting panel 401 bottom, and then guarantee front hook 402 when rotating along with first pivot 407, remain vertical state throughout, and then can not unhook, lifting hook 403 rotates along with second pivot 408 after the same reason, also keep vertical state, with the synchronous incorgruous motion of front hook 402.
As shown in fig. 9, the front hook 402 and the rear hook 403 can hook two different main bars in a back direction, when the distance between the adjacent main bars is far away, the state of fig. 10 can be adjusted first, so that the front hook 402 and the rear hook 403 face to each other and hook a main bar together, the hooking method is more stable, different hooking methods can be adopted according to different sizes or shapes of the steel bar framework, when a U-shaped chassis is hooked, a clasping type hooking method can be adopted, and certainly, according to actual conditions, a back-to-back type hooking method can be adopted when a top plate is hooked. Simultaneously because preceding lifting hook 402 and back lifting hook 403 are located the both sides of mounting panel 401 respectively, can also make preceding lifting hook 402 and back lifting hook 403 be located two adjacent holes, dislocation looks hook, more stability and practicality, also do not worry that framework of steel reinforcement can slide etc. a plurality of subassemblies that hang catch on framework of steel reinforcement simultaneously, enable whole framework of steel reinforcement and truss 1 parallel, guarantee hanging the in-process of changeing, framework of steel reinforcement can remain the level in the error range throughout, can not bend by a wide margin or atress inequality, lead to framework of steel reinforcement deformation etc. when placing the level put down, also can not have the part not to stretch out and produce friction etc. with other positions.
When the front lifting hook 402 and the rear lifting hook 403 need to be taken out, the truss 1 is only required to be lowered, the front lifting hook 402 and the rear lifting hook 403 can automatically fall off under the action of gravity, and then the front lifting hook 402 and the rear lifting hook 403 are mutually closed from the lower ends through the rotating shaft 409 to coincide into a figure 9 state, and finally the front lifting hook 402 and the rear lifting hook 403 can be vertically lifted. The connection and the separation are very simple, the working efficiency and the reliability are greatly improved, and the labor and the time cost are saved.
The left suspension arm 2 comprises an outer support plate 5, an inner support plate 6, a screw rod 7, a guide rod 8 and a sliding seat 9, the outer support plate 5 and the inner support plate 6 are respectively arranged on the outer side and the inner side of the truss 1, two ends of the screw rod 7 are respectively connected with the outer support plate 5 and the inner support plate 6 in a rotating mode, the guide rod 8 is arranged above the screw rod 7, two ends of the guide rod 8 are respectively connected with the inner support plate 6 and the outer support plate 5, the sliding seat 9 is respectively provided with a threaded hole and a sliding hole, the screw rod 7 is arranged in the threaded hole in a penetrating mode in a matching mode, the guide rod 8 is arranged in the sliding hole in a penetrating mode, the suspension head 4 is arranged at the bottom of the sliding seat 9, and the structure of the right suspension arm 3 is the same as that of the left suspension arm 2.
The suspension arm type transmission mechanism further comprises a first bevel gear 10, a second bevel gear 11, a main bevel gear 12, a main driving shaft 13 and a rear supporting plate 14, wherein the first bevel gear 10 and the second bevel gear 11 are respectively sleeved on the screw rods 7 of the left suspension arm 2 and the right suspension arm 3, two ends of the rear supporting plate 14 are respectively connected with the inner supporting plates 6 of the left suspension arm 2 and the right suspension arm 3, the main driving shaft 13 is rotatably arranged on the rear supporting plate 14, the main bevel gear 12 is sleeved on the main driving shaft 13, and the main bevel gear 12 is respectively meshed with the first bevel gear 10 and the second bevel gear 11.
The two-stage transmission device further comprises a second connecting rod 17 and a second universal joint 18, wherein the second universal joint 18 is arranged at each of two ends of the second connecting rod 17, and the two adjacent main driving shafts 13 are in transmission connection with the second universal joints 18 at the two ends of the second connecting rod 17 respectively.
One end of the truss 1 is obliquely provided with a large fixing plate 22, a large adjusting rod 23 is rotatably arranged on the large fixing plate 22, the large adjusting rod 23 is perpendicular to the large fixing plate 22, one end of the large adjusting rod 23 is in transmission connection with the main driving shaft 13 through a second universal joint 18, and the other end of the large adjusting rod 23 is provided with a large rotary table 24.
As shown in fig. 1-3 and fig. 7, when adjusting the distance between two suspension heads 4 on the same suspension assembly, by rotating the large rotary table 24, the large rotary table 24 drives the main driving shaft 13 on each suspension assembly to rotate through the large adjusting rod, the plurality of second universal joints 18 and the plurality of second connecting rods 17, the main driving shaft 13 drives the main bevel gear 12 to rotate, the main bevel gear 12 simultaneously drives the first bevel gear 10 and the second bevel gear 11 to rotate, at the same time, the first bevel gear 10 and the second bevel gear 11 respectively drive the screw rods 7 on the left suspension arm 2 and the right suspension arm 3 to rotate, the slide carriage 9 is slidably connected with the guide rod 8, and the slide carriage 9 is in threaded fit with the screw rods 7, so that while the screw rods 7 rotate, the slide carriage 9 is driven to move, the two slide carriages 9 synchronously and anisotropically drive the suspension heads 4 at the respective lower ends to move, and the distance between the two suspension heads 4 on the plurality of suspension assemblies can be adjusted directly by rotating the large rotary table 24, thereby adjusting different suspension distances according to different reinforcement cage sizes.
The suspension head further comprises a first connecting rod 15 and a first universal joint 16, the first universal joint 16 is arranged at each of two ends of the first connecting rod 15, and the driving rotating shafts 409 of two adjacent suspension heads 4 are in transmission connection through the first universal joints 16 at the two ends of the first connecting rod 15.
A small fixing plate 19 is obliquely arranged on the sliding seat 9 at the end part of the truss 1, a small adjusting rod 20 is rotatably arranged on the small fixing plate 19, the small adjusting rod 20 is perpendicular to the small fixing plate 19, one end of the small adjusting rod 20 is in transmission connection with a driving rotating shaft 409 through a first universal joint 16, and a small rotating disc 21 is arranged at the other end of the small adjusting rod 20.
As shown in fig. 1-6 and fig. 8, in specific implementation, the small turntable 21 is rotated, the small turntable 21 drives the small adjusting rod 20 to rotate, the small adjusting rod 20, the first universal joints 16 and the first connecting rods 15 cooperate to drive the driving shaft 409, and further drive the driving gear 406 to rotate, so as to achieve synchronous adjustment of the front hook 402 and the rear hook 403, hook or release the steel reinforcement framework, thereby improving the working efficiency.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a lifting hook is used in hoisting of case roof beam framework of steel reinforcement which characterized in that: the movable suspension device comprises a truss (1) and a plurality of suspension assemblies, wherein the suspension assemblies are arranged at the bottom of the truss (1) at intervals, each suspension assembly comprises a left suspension arm (2) and a right suspension arm (3), the left suspension arm (2) and the right suspension arm (3) are symmetrically arranged at the bottom of the truss (1), and movable suspension heads (4) are arranged on the left suspension arm (2) and the right suspension arm (3);
the suspension head (4) comprises a mounting plate (401), a front hook (402), a rear hook (403), a first gear (404), a second gear (405), a driving gear (406), a first rotating shaft (407), a second rotating shaft (408) and a driving rotating shaft (409), wherein the front hook (402) and the rear hook (403) are respectively arranged on two sides of the mounting plate (401), the first rotating shaft (407), the second rotating shaft (408) and the driving rotating shaft (409) are respectively arranged on the mounting plate (401) in a rotating manner, two ends of the first rotating shaft (407), the second rotating shaft (408) and the driving rotating shaft (409) are respectively extended out of two sides of the mounting plate (401), the first gear (404), the second gear (405) and the driving gear (406) are respectively sleeved on the first rotating shaft (407), the second rotating shaft (408) and the driving rotating shaft (409), the first gear (404) is meshed with the second gear (405), and the driving gear (406) is meshed with the upper part of the first gear (404);
the lifting device is characterized by further comprising a first driving rod (410) and a first auxiliary rod (411), wherein the first driving rod (410) and the first auxiliary rod (411) are arranged in parallel, one end of the first driving rod (410) is connected with the first rotating shaft (407), the other end of the first driving rod (410) is hinged to the upper end of the front lifting hook (402), one end of the first auxiliary rod (411) is hinged to the bottom of the mounting plate (401), and the other end of the first auxiliary rod (411) is hinged to the middle of the front lifting hook (402);
still include second actuating lever (412) and second auxiliary rod (413), second actuating lever (412) and second auxiliary rod (413) parallel arrangement, second actuating lever (412) one end with second pivot (408) are connected, second actuating lever (412) other end with back lifting hook (403) upper end is articulated, second auxiliary rod (413) one end with mounting panel (401) bottom is articulated, second auxiliary rod (413) other end with back lifting hook (403) middle part is articulated.
2. A lifting hook for lifting a box girder steel reinforcement framework according to claim 1, wherein the front lifting hook (402) and the rear lifting hook (403) are both parallel to the mounting plate (401), the first driving rod (410) is hinged with one side of the front lifting hook (402) far away from the mounting plate (401), and the first auxiliary rod (411) is hinged with one side of the front lifting hook (402) near the mounting plate (401);
the second actuating lever (412) with back lifting hook (403) are kept away from mounting panel (401) one side is articulated, second auxiliary rod (413) with back lifting hook (403) are close to mounting panel (401) one side is articulated.
3. The lifting hook for lifting the steel reinforcement framework of the box girder according to claim 1, wherein the left suspension arm (2) comprises an outer support plate (5), an inner support plate (6), a screw (7), a guide rod (8) and a sliding seat (9), the outer support plate (5) and the inner support plate (6) are respectively arranged on the outer side and the inner side of the truss (1), two ends of the screw (7) are respectively rotatably connected with the outer support plate (5) and the inner support plate (6), the guide rod (8) is arranged above the screw (7), two ends of the guide rod (8) are respectively connected with the inner support plate (6) and the outer support plate (5), the sliding seat (9) is respectively provided with a threaded hole and a sliding hole, the screw (7) is arranged in the threaded hole in a matching manner, the guide rod (8) is arranged in the sliding hole in a penetrating manner, the suspension head (4) is arranged at the bottom of the sliding seat (9), and the structure of the right suspension arm (3) is the same as that of the left suspension arm (2).
4. The lifting hook for lifting the steel reinforcement framework of the box girder according to claim 3, further comprising a first bevel gear (10), a second bevel gear (11), a main bevel gear (12), a main driving shaft (13) and a rear supporting plate (14), wherein the first bevel gear (10) and the second bevel gear (11) are respectively sleeved on the screw rods (7) of the left suspension arm (2) and the right suspension arm (3), two ends of the rear supporting plate (14) are respectively connected with the inner supporting plates (6) of the left suspension arm (2) and the right suspension arm (3), the main driving shaft (13) is rotatably arranged on the rear supporting plate (14), the main bevel gear (12) is sleeved on the main driving shaft (13), and the main bevel gear (12) is respectively engaged with the first bevel gear (10) and the second bevel gear (11).
5. A lifting hook for lifting a box girder steel bar framework, as claimed in claim 4, further comprising a first connecting rod (15) and a first universal joint (16), wherein the first universal joint (16) is arranged at each of two ends of the first connecting rod (15), and the driving rotating shafts (409) of two adjacent suspension heads (4) are respectively in transmission connection through the first universal joints (16) at the two ends of the first connecting rod (15).
6. A lifting hook for lifting a box girder steel reinforcement framework according to claim 4, characterized by further comprising a second connecting rod (17) and a second universal joint (18), wherein the second universal joint (18) is arranged at each of two ends of the second connecting rod (17), and two adjacent main driving shafts (13) are in transmission connection with the second universal joints (18) at the two ends of the second connecting rod (17) respectively.
7. A lifting hook for lifting a box girder steel reinforcement framework, as claimed in claim 5, wherein a small fixing plate (19) is obliquely arranged on a sliding base (9) at the end of the truss (1), a small adjusting rod (20) is rotatably arranged on the small fixing plate (19), the small adjusting rod (20) is perpendicular to the small fixing plate (19), one end of the small adjusting rod (20) is in transmission connection with the driving rotating shaft (409) through the first universal joint (16), and a small rotating disc (21) is arranged at the other end of the small adjusting rod (20).
8. A lifting hook for lifting a steel reinforcement framework of a box girder according to claim 6, wherein one end of the truss (1) is obliquely provided with a large fixing plate (22), the large fixing plate (22) is rotatably provided with a large adjusting rod (23), the large adjusting rod (23) is perpendicular to the large fixing plate (22), one end of the large adjusting rod (23) is in transmission connection with the main driving shaft (13) through the second universal joint (18), and the other end of the large adjusting rod (23) is provided with a large rotating disc (24).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210467661.XA CN114852844B (en) | 2022-04-29 | 2022-04-29 | Lifting hook for hoisting box girder steel reinforcement framework |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210467661.XA CN114852844B (en) | 2022-04-29 | 2022-04-29 | Lifting hook for hoisting box girder steel reinforcement framework |
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| CN114852844A CN114852844A (en) | 2022-08-05 |
| CN114852844B true CN114852844B (en) | 2023-03-31 |
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| CN202210467661.XA Active CN114852844B (en) | 2022-04-29 | 2022-04-29 | Lifting hook for hoisting box girder steel reinforcement framework |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117902456B (en) * | 2024-03-18 | 2024-06-28 | 中铁四局集团有限公司 | Lifting appliance for prefabricated small box girder left and right web plate reinforcing steel meshes and application method thereof |
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| JPH02204297A (en) * | 1989-01-30 | 1990-08-14 | Nippon Steel Corp | Automatic sling device |
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| JPH0826662A (en) * | 1994-07-14 | 1996-01-30 | Masago Kogyo Kk | Coil lifter |
| JP2002173289A (en) * | 2000-12-11 | 2002-06-21 | Komai Technos:Kk | Lifting gear of roll |
| JP5037456B2 (en) * | 2008-08-27 | 2012-09-26 | 鹿島建設株式会社 | Railway girder moving installation device, railway girder moving installation method and railway girder removal method |
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| CN206511811U (en) * | 2017-03-01 | 2017-09-22 | 四川建筑职业技术学院 | It is a kind of to lift clamping device apart from adjustable positioning |
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