CN205369055U - Rotatory lifting device of suspension bridge stiffening beam - Google Patents

Abstract

The utility model discloses a rotatory lifting device of suspension bridge stiffening beam, include to the stiffening beam section hoist and can to the stiffening beam section of hoist carry on horizontal rotation rotatory hoist, be located the balance beam directly over the rotatory hoist and construct through the hoisting machine that balance beam pairing rotation hoist goes on hoisting, the hoist and mount of stiffening beam section are on rotatory hoist, rotatory hoist hoist and mount are on balance beam, the balance beam hoist and mount construct at hoisting machine goes up below just it is located the hoisting machine structure, hoisting machine constructs and to install on the cable support tower of construction suspension bridge, rotatory hoist puts up, installs the vertical pivot on the hoist and mount frame and drive the rotary driving mechanism that horizontal rotation is carried out in vertical pivot including hoist and mount, and the hoist and mount of stiffening beam section are installed on hoisting the frame at vertical pivot below, rotary driving mechanism, rotatory hoist and balance beam all are the level and lay. The utility model has the advantages of simple structure and reasonable design and use easy and simple to handle, excellent in use effect, can accomplish suspension bridge stiffening beam's hoist and mount and the process of erectting portably, fast.

Description

Suspension Bridge Stiffening Beam Rotary Hoisting Equipment

technical field

The utility model belongs to the technical field of bridge construction, in particular to a rotating hoisting device for a stiffening beam of a suspension bridge.

Background technique

Suspension bridge, also known as suspension bridge, refers to a bridge with cables (or steel chains) suspended by towers and anchored on both banks (or both ends of the bridge) as the main load-bearing components of the upper structure. In order to avoid the deformation of the bridge deck along with the suspension cables during the running of vehicles, modern suspension bridges are generally equipped with rigid girders (also known as stiffening girders). The stiffening beam of the suspension bridge mainly plays the role of supporting and transmitting the load, and is the main component bearing the wind load and other transverse horizontal forces. Most of the stiffened girders of long-span suspension bridges use steel structures, generally truss girders and flat steel box girders; prestressed concrete stiffened girders are only suitable for suspension bridges with a span of less than 500m, and most of them use box girders.

At present, there are two main types of erection methods for the stiffening girders of suspension bridges, which are segmental erection and component erection. Among them, due to the long construction period and the difficulty in controlling the alignment of stiffened beams, the scattered erection method of components has been seldom used in China.

At present, the following two methods are often used for the erection of stiffening beam segments of suspension bridges. One method is the method of cross-cable crane frame. The installation of the beam section is characterized by a large hoisting mass and can be moved vertically and along the bridge, but the moving distance is limited; another way is to use a cable crane to transport the beam section from both banks or under the bridge to the installation location for beam section installation, which is called The cable crane frame method is characterized by large vertical lifting and walking along the bridge direction, and can carry out small-scale swing lifting method, which is widely used in the construction of long-span suspension bridges.

With the rapid development of my country's economy, more and more highways and cross-sea and island-connecting projects have been built, and the projects of building long-span suspension bridges on valleys and deep ditches, rapid rivers, high-wave seas and busy waterways have gradually increased. When hoisting the stiffening girder of the suspension bridge under the above working conditions, the method of spanning the cable crane frame is no longer applicable, and the method of the cable crane frame also has the disadvantages of difficult construction, poor safety and reliability, and uneconomical. Therefore, it is urgent to study a It is an economical and practical hoisting equipment suitable for the erection of stiffened beams of suspension bridges with low construction difficulty, high safety and reliability.

Utility model content

The technical problem to be solved by the utility model is to provide a suspension bridge stiffening beam rotary hoisting device for the above-mentioned deficiencies in the prior art. Beam hoisting and erection process.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a suspension bridge stiffening beam rotating hoisting equipment, which is characterized in that: it includes a rotating hoist that can hoist the stiffened beam section and can horizontally rotate the hoisted stiffened beam section. Tool, shoulder pole beam located directly above the rotating spreader, and a hoisting mechanism for lifting the rotating spreader through the shoulder pole beam, the stiffening beam section is hoisted on the rotating spreader and it is located directly below the rotating spreader, and the rotating spreader is hoisted On the pole beam and it is located directly below the pole beam, the pole beam is hoisted on the hoisting mechanism and it is located below the hoisting mechanism; the hoisting mechanism is installed on the cable tower of the construction suspension bridge; the rotation The hanger includes a hoisting frame, a vertical shaft installed on the hoisting frame, and a rotary drive mechanism that drives the vertical shaft to rotate horizontally. The stiffening beam section is hoisted below the vertical shaft and connected to the vertical The rotating shaft is connected, and the rotating driving mechanism is installed on the lifting frame and is connected to the vertical rotating shaft through a transmission mechanism; the rotating lifting device and the pole beam are arranged horizontally.

The above-mentioned rotating and hoisting equipment for stiffening beams of suspension bridges is characterized in that: the rotating driving mechanism is a driving motor controlled by a remote controller.

The above-mentioned rotating and hoisting equipment for stiffening beams of suspension bridges is characterized in that: the transmission mechanism is a gear transmission mechanism, the vertical rotating shaft is a gear shaft arranged vertically, and the gear transmission mechanism includes a coaxial fixed sleeve on the upper part of the gear shaft The driven gear and the driving gear meshed with the driven gear, the driven gear and the driving gear are arranged horizontally; the driving gear is in transmission connection with the rotary drive mechanism.

The above-mentioned rotating and hoisting equipment for stiffening beams of suspension bridges is characterized in that: the hoisting frame is equipped with a rotating shaft for the driving gear to be installed, the rotating shaft is arranged vertically and is connected with the hoisting frame through a bearing, so The driving gear is coaxially and fixedly set on the rotating shaft, and the driving gear is connected to the rotating drive mechanism through the rotating shaft; the gear shaft is installed in the middle of the lifting frame, and the middle of the lifting frame is equipped with A gear shaft sleeve coaxially sleeved on the gear shaft, the gear shaft sleeve and the gear shaft are connected through bearings.

The above-mentioned rotating hoisting equipment for stiffening beams of suspension bridges is characterized in that: the hoisting frame includes a horizontal rotating platform and a hanger supported under the horizontal rotating platform; The bottoms of the left and right sides of the pole beam are respectively provided with a lower ring for hoisting by a sling, and the upper parts of the left and right sides of the shoulder beam are respectively provided with an upper ring for hoisting by the hoisting mechanism; the vertical shaft is installed on a horizontal on the rotating platform.

The above-mentioned rotating hoisting device for stiffening beams of suspension bridges is characterized in that: the stiffening beam section is hoisted on the vertical shaft through multiple connecting ropes.

The above-mentioned rotating and hoisting equipment for stiffening beams of suspension bridges is characterized in that two universal hinges are arranged directly below the vertical rotating shaft, and the two universal hinges are respectively the first ten thousand joints installed at the bottom of the vertical rotating shaft. to the hinge and the second universal hinge located directly below the first universal hinge, the first universal hinge is tightly connected to the second universal hinge; the connecting rope is connected to the first universal hinge The first connecting rope connected to the hinge or the second connecting rope connected to the second universal hinge, the number of the first connecting rope and the second connecting rope is multiple; each of the first connecting ropes The upper ends of the connecting ropes are all fixed on the first universal hinge and the lower ends are fixed on the second lifting piece, and the upper ends of each second connecting rope are fixed on the second universal hinge and its The lower ends are all fixed on the second hoisting piece.

The above-mentioned rotating hoisting equipment for stiffening beams of suspension bridges is characterized in that: the number of the second hoisting parts is eight, and the eight second hoisting parts are arranged in three rows, and the second hoisting parts in the three rows are arranged from front to back They are the first row of hoisting parts, the second row of hoisting parts and the third row of hoisting parts; the first row of hoisting parts and the third row of hoisting parts each include three The second hoisting parts on the same straight line, the three second hoisting parts from left to right are the left side hoisting part, the middle part hoisting part and the right side hoisting part; the second row of hoisting parts is located on the vertical shaft directly below, the first row of hoisting parts and the third row of hoisting parts are symmetrically arranged on the front and rear sides of the second row of hoisting parts, and the second row of hoisting parts includes left and right two of the first row of hoisting parts Two lifting parts;

The two second slings in the second row of slings and the middle slings in the first row of slings and the third row of slings are all connected to the first row of slings through the first connecting rope. The first universal joint is connected, and the four second lifting parts connected with the first universal joint are arranged on four vertices of a rhombus; the first row of lifting parts and the third row of lifting parts The left hanging part and the right hanging part in the parts are both connected to the second universal hinge through the second connecting rope, and the four second universal hinges connected to the second universal hinge The lifting parts are arranged on the four vertices of a rectangle;

The first universal hinge includes a first hinge base arranged horizontally, a first hinge shaft installed in the middle of the first hinge base, and two first hinge shafts symmetrically installed on the front and rear sides of the first hinge shaft. Two articulated shafts, the first articulated shaft and the two second articulated shafts are installed on the first articulated seat and all three are arranged in parallel, the first articulated shaft and the two second articulated shafts The hinged shafts are arranged horizontally; the two second suspended parts in the second row of suspended parts are respectively connected to the first hinged shaft through the first connecting ropes, and the first row of suspended parts and The middle hoisting parts of the third row of hoisting parts are respectively connected to the two second hinge shafts through the first connecting ropes;

The second universal hinge includes a second hinge base arranged horizontally and two third hinge shafts mounted symmetrically on the second hinge base at the front and rear, the two third hinge shafts are front hinged respectively. shaft and the rear side hinge shaft located on the right side of the front side hinge shaft; the left side hoisting piece and the right side hoisting piece in the first row of hoisting pieces are respectively connected to the The front side hinge shaft is connected, and the left side suspension part and the right side suspension part in the third row of suspension parts are respectively connected to the rear side hinge shaft through the second connecting rope.

The above-mentioned rotating hoisting equipment for stiffening beams of suspension bridges is characterized in that: the hoisting mechanism includes two groups of traveling cranes symmetrically arranged on the left and right, two left and right load-bearing rails for the two groups of traveling cranes to move back and forth respectively, and drives the two groups of cranes to move forward and backward. The crane traction mechanism for the traveling crane to move back and forth and the crane driven by the two groups of traveling cranes to move forward and backward, the two load-bearing rails are arranged symmetrically and both are arranged along the longitudinal bridge direction; The construction suspension bridge is provided with two front and rear cable towers, and the front and rear ends of each load-bearing rail are respectively anchored on the two cable towers, and the two cable towers are respectively the front side cable tower and the The rear cable tower on the rear side of the front cable tower; the crane is located between the two cable towers, the crane is located under the two groups of traveling cranes and it is connected to the two groups of the traveling cranes. The trolleys are connected as a whole; each group of the traveling cranes includes two traveling cranes installed on the same load-bearing rail cable and moving forward and backward synchronously along the load-bearing rail cable. Fastened and connected as a whole by connecting pieces, and the two are respectively the front crane and the rear crane located at the rear side of the front crane; The front traction cables on the front crown and the left and right rear traction cables respectively connected to the two rear crowns, the two front traction cables are arranged symmetrically, and the two rear traction cables are arranged symmetrically. The side traction cables are arranged symmetrically; two left and right front traction drive structures are arranged on the front cable tower, and the front ends of the two front traction cables are respectively connected to the two front traction drive structures; Two left and right rear traction drive structures are arranged on the rear cable tower, and the rear ends of the two rear traction cables are respectively connected to the two rear traction drive structures; the front traction drive structure and The rear traction drive mechanism is a winch; the shoulder beam is hoisted on the crane and is located below the crane.

The above-mentioned rotary hoisting equipment for stiffening beams of suspension bridges is characterized in that: the number of the cranes is two and the two cranes are symmetrically arranged on the left and right, and the two cranes are respectively hoisted under the two groups of the traveling cranes The number of the shoulder-pole beams is two, the two shoulder-pole beams are arranged horizontally and both are arranged along the longitudinal bridge direction, the two shoulder-pole beams are symmetrically arranged on the left and right, and the two are respectively hoisted in two places. below the crane;

Each of the cranes includes an assembled spreader and a hoisting mechanism connected with the assembled spreader, the hoisting mechanism includes a hoisting rope and two hoisting drive mechanisms, and the two hoisting drives Both mechanisms are winches and the two are respectively installed on the two pylons, and the front and rear ends of the hoisting rope are connected to the two hoisting drive mechanisms respectively; the assembled spreader includes two front and rear The upper sling and the two lower slings that are connected with the two upper slings by hoisting ropes, the two upper slings and the two lower slings are all located on the same vertical plane and are located on both sides. Between the two pylons; the two upper slings are respectively the upper sling on the front side and the upper sling on the rear side located at the rear side of the upper sling on the front side;

The front upper spreaders of the two cranes are respectively located directly below the two front cranes and are assembled with the two front cranes respectively. The rear upper hangers are respectively located directly below the two rear cranes and they are respectively assembled with the two rear cranes; each shoulder beam is hoisted on the two lower cranes. Below the spreader.

Compared with the prior art, the utility model has the following advantages:

1. The structure is simple and the processing is easy, and the input cost is low.

2. The structural design is reasonable, mainly consisting of a rotating hoist that hoists the stiffened beam section and can horizontally rotate the hoisted stiffened beam, a pole beam located directly above the hoisting beam, and hoisting the hoisting hoist through the pole beam. It is composed of a hoisting mechanism that can move forward and backward along the longitudinal bridge, and the actual installation and layout are convenient.

3. The rotary hoist adopted is simple in structure, reasonable in design, easy to manufacture and use, and has good effect. It mainly includes the hoisting frame, the vertical shaft installed on the hoisting frame and the rotary drive that drives the vertical shaft to rotate horizontally. The mechanism can smoothly rotate the stiffened beam section on the horizontal plane. The rotation process is safe and reliable, so that the simple and fast longitudinal translation of the stiffened beam section can be realized. Because the central axis of the currently erected stiffened beam section is along the The layout is carried out in the direction of the cross bridge, which can effectively reduce the size of the beam transport trolley, and can effectively improve the stability of the beam transport process. At the same time, the currently erected stiffening beam section can be moved to the position of the cable tower as much as possible.

4. The hoisting mechanism adopted is simple in structure, reasonable in design, easy to install, easy to use and operate, and has good effect. The position of the longitudinal bridge is adjusted easily and quickly, so that the currently erected stiffening beam section can be easily and quickly moved to the pre-designed erection position, effectively improving the construction progress.

5. It is easy to operate, strong in operability and good in use effect. It is suitable for erecting stiffening beams of suspension bridges, and has low construction difficulty, high safety and reliability, and is economical and practical.

6. The hoisting method is simple in steps, reasonable in design, convenient in implementation, and good in use. It can effectively solve the problems caused by existing stiffening beam erection methods when building large-span suspension bridges in deep valleys, rapid rivers, sea areas with high waves, and busy waterways. In the case of too much clearance under the bridge, limited construction site, turbulent water flow under the bridge and prohibited interruption of the channel, it is impossible or difficult to transport the stiffening beam segment to the directly below the design position, and it is difficult to use the cable crane to move vertically or in a small range When hoisting the stiffening girder segment (that is, the stiffening girder section) and using the girder truck to transport the stiffening girder to the predetermined position for installation on the completed bridge surface, it is necessary to pass through the bridge tower area and install the stiffening girder in the design direction. The technical challenge of steering a stiffened beam.

7. It has high practical value and wide application prospects, and can be widely used in various special working conditions, especially in the hoisting and erection process of stiffened beams where it is difficult to transport the stiffened beams to the lower part of the bridge design position. After being transported to the predetermined position, the stiffening beam is hoisted to the vertical position through the cooperation of the cable crane and the bridge deck winch, and then rotated horizontally before installation. The construction process is safe, reliable and practical.

To sum up, the utility model has the advantages of simple structure, reasonable design, convenient operation and good effect, and can easily and quickly complete the hoisting and erecting process of the stiffening beam of the suspension bridge.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the connection state between the vertical shaft of the utility model and the hoisted stiffening beam section.

Fig. 3 is a structural diagram of the lifting frame, the vertical shaft and the transmission mechanism of the utility model.

Fig. 4 is a schematic diagram of the construction state before the stiffened beam section is hoisted by the utility model.

Fig. 5 is a schematic diagram of the construction state when the stiffened beam section is hoisted in place by the utility model.

Fig. 6 is a flow chart of the method for erecting the stiffening beam of the suspension bridge by adopting the utility model.

Explanation of reference signs:

1—Traveling crane; 2—Crown connecting wire rope; 3-1—Front traction rope;

3-2—rear traction cable; 4—load-bearing rail cable; 5—lifting cable;

6—upper sling; 7—lower sling; 7-1—third hoisting piece;

8—shoulder beam; 8-1—lower ring; 8-2—first lifting piece;

9—rotary spreader; 9-1—rotary platform; 10—hanger;

10-1—hanging ring; 11—universal hinge; 12—connecting rope;

13—stiffening beam section; 13-1—second hoisting piece; 14—drive motor;

15—gear shaft; 15-1—driven gear; 15-2—driving gear;

15-3—rotating shaft; 16—gear shaft sleeve; 17—balance cable;

18—balance cable hoist; 19—beam transport trolley; 20—cable tower;

21—sling; 22—fixer; 23—cable;

24—rear side beam body.

detailed description

As shown in Figure 1, the utility model includes a rotating hoist 9 for hoisting the stiffened beam section 13 and horizontally rotating the hoisted stiffened beam section 13, a pole beam 8 directly above the hoisting hoist 9, and The beam 8 is a hoisting mechanism that hoistes the rotating hoist 9 and can move back and forth along the longitudinal direction of the bridge. It is hoisted on the shoulder pole beam 8 and it is located directly below the shoulder pole beam 8, and the shoulder pole beam 8 is hoisted on the lifting mechanism and it is located below the lifting mechanism. The hoisting mechanism is installed on the cable tower 20 of the suspension bridge under construction; the rotating sling 9 includes a hoisting frame, a vertical shaft installed on the hoisting frame, and a rotary drive mechanism that drives the vertical shaft to rotate horizontally , the stiffening beam section 13 is hoisted below the vertical shaft and is connected to the vertical shaft, the rotation drive mechanism is installed on the suspension frame and is connected to the vertical shaft through a transmission mechanism. Drive connection. Both the rotating hanger 9 and the pole beam 8 are arranged horizontally.

In this embodiment, the rotation driving mechanism is a driving motor 14 controlled by a remote controller. Therefore, the actual control is very simple.

Moreover, the drive motor 14 is a drive motor.

Referring to Fig. 3, in this embodiment, the transmission mechanism is a gear transmission mechanism, the vertical shaft is a gear shaft 15 arranged vertically, and the gear transmission mechanism includes a coaxial fixed sleeve on the top of the gear shaft 15. The driven gear 15-1 and the driving gear 15-2 meshed with the driven gear 15-1, the driven gear 15-1 and the driving gear 15-2 are arranged horizontally; The rotary drive mechanism is connected by transmission.

In actual use, the transmission mechanism may also adopt other types of transmission devices.

In this embodiment, the hoisting frame is equipped with a rotating shaft 15-3 for the driving gear 15-2 to be installed, and the rotating shaft 15-3 is arranged vertically and is connected to the hoisting frame through a bearing. , the driving gear 15-2 is coaxially fixedly set on the rotating shaft 15-3, and the driving gear 15-2 is connected to the rotating drive mechanism through the rotating shaft 15-3; the gear shaft 15 is installed on The middle part of the lifting frame is equipped with a gear shaft sleeve 16 coaxially sleeved on the gear shaft 15, and the gear shaft sleeve 16 is connected with the gear shaft 15 through a bearing.

During actual processing, the hoisting frame includes a horizontal rotating platform 9-1 and a hanger 10 supported below the horizontal rotating platform 9-1. In this embodiment, the hanger 10 is arranged horizontally and is a rectangular frame, and the horizontal rotating platform 9 - 1 is a rectangular platform and its front and rear ends are respectively supported above the front and rear sides of the hanger 10 .

In this embodiment, the hanger 10 is a steel frame. During actual construction, the hanger 10 may also use other materials, such as a stainless steel frame.

During actual installation, the gear shaft sleeve 16 is fixedly installed on the horizontal rotating platform 9-1.

In this embodiment, the rotating shaft 15-3 is in transmission connection with the power output shaft of the driving motor 14, and the driving motor 14 is located above the rotating shaft 15-3.

And, for the ease of assembly, the driving gear 15-2 is processed as one with the rotating shaft 15-3, and the driven gear 15-1 and the driving gear 15-2 are arranged on the same horizontal plane, and the rotating shaft 15-3 The bottom is installed on the horizontal rotating platform 9-1 by bearings.

In this embodiment, the driving motor 14 is located directly above the rotating shaft 15-3.

In this embodiment, the pole beam 8 is a shaped steel beam.

Moreover, the rotating hoisting device 9 is hoisted on the pole beam 8 by two groups of slings 21 at the front and rear, and the bottoms of the front and rear sides of the pole beam 8 are respectively provided with a lower ring 8-1 for hoisting by the slings 21. A first hoisting part 8-2 for hoisting by the hoisting mechanism is respectively arranged on the front and back sides of the shoulder pole beam 8 . Described vertical rotating shaft is installed on the horizontal rotating platform 9-1.

With reference to Fig. 4 and Fig. 5, in this embodiment, the hoisting mechanism includes two groups of traveling cranes 1 arranged symmetrically on the left and right, two left and right load-bearing rails 4 for the two groups of traveling cranes 1 to move back and forth respectively, The crane traction mechanism that drives the two groups of traveling cranes 1 to move back and forth and the crane that is driven by the two groups of traveling cranes 1 to move back and forth, and the two load-bearing rails 4 are symmetrically arranged and both Arranged along the longitudinal bridge. The construction suspension bridge is provided with two front and rear cable towers 20, and the front and rear ends of each load-bearing rail 4 are respectively anchored on the two cable towers 20, and the two cable towers 20 are respectively the front side A cable tower and a rear side cable tower positioned at the rear side of the front side cable tower. The crane is located between the two pylons 20, the crane is located below the two groups of traveling cranes 1 and is connected with the two groups of traveling cranes 1 as a whole. Each group of traveling cranes 1 includes two traveling cranes 1 installed on the same load-bearing rail 4 and moving forward and backward synchronously along the load-bearing rail 4. Between the two traveling cranes 1 The connecting parts are fastened and connected as a whole, and the two are respectively the front crown block and the rear crown block located at the rear side of the front crown block. The crane traction mechanism includes two left and right front side traction cables 3-1 respectively connected to the two front cranes and two left and right rear traction cables respectively connected to the two rear cranes. Cables 3-2, the two front traction cables 3-1 are arranged symmetrically, and the two rear traction cables 3-2 are symmetrically arranged. Two left and right front traction drive structures are arranged on the front cable tower, and the front ends of the two front traction cables 3-1 are respectively connected to the two front traction drive structures. Two left and right rear traction drive structures are arranged on the rear cable tower, and the rear ends of the two rear traction cables 3-2 are respectively connected to the two rear traction drive structures. Both the front traction drive structure and the rear traction drive mechanism are winches. The shoulder pole beam 8 is hoisted on the crane and it is located below the crane. And, the cables 23 of the suspension bridge being constructed are suspended between the two cable towers 20 .

In this embodiment, the load-bearing rail 4 is a steel wire rope, and its front and rear ends are respectively anchored to the tops of the two cable towers 20 by anchors. In addition, the front traction drive structure and the rear traction drive mechanism are respectively installed on the tops of the two cable towers 20 .

In this embodiment, the connecting piece is a crane connecting steel wire rope 2, through which the two traveling cranes 1 before and after are connected as a whole, so as to ensure that the two traveling cranes 1 travel synchronously.

For easy operation, both the front traction drive mechanism and the rear traction drive mechanism are controlled by a remote controller. During actual use, the traveling cranes 1 of the two groups are connected to the front traction drive structure and the rear traction drive mechanism through traction cables 3 to realize traction braking and drive the stiffening beam section 13 The purpose of longitudinal movement.

In this embodiment, the number of the cranes is two and the two cranes are symmetrically arranged left and right, and the two cranes are respectively hoisted under two groups of the traveling cranes 1 . The number of the shoulder pole beams 8 is two, the two shoulder pole beams 8 are arranged horizontally and both are arranged along the longitudinal bridge direction, the two shoulder pole beams 8 are symmetrically arranged on the left and right, and the two are hoisted on two sides respectively. below the crane.

Each of the cranes includes an assembled spreader and a lifting mechanism connected with the assembled spreader. Described hoisting mechanism comprises a hoisting cable 5 and two hoisting driving mechanisms, and two described hoisting driving mechanisms are winches and both are respectively installed on two described cable towers 20, and described hoisting cable The front and back ends of 5 are respectively connected on the two described lifting drive mechanisms. The assembled spreader includes two front and rear upper spreaders 6 and two front and rear lower spreaders 7 connected with the two upper spreaders 6 by hoisting ropes 5, the two upper spreaders 6 and the two The lower spreaders 7 are all located on the same vertical plane and are located between the two pylons 20; Side spreader.

The front upper spreaders of the two cranes are respectively located directly below the two front cranes and are assembled with the two front cranes respectively. The upper hangers on the rear side are respectively located directly below the two rear cranes and the two are respectively assembled with the two rear cranes; each shoulder beam 8 is hoisted on the two rear cranes. Lower the spreader 7 below.

In this embodiment, the two cranes are respectively located on the left and right sides between the two cable towers 20 .

Moreover, the two lifting drive mechanisms are respectively installed on the tops of the two cable towers 20 . For easy operation, the two lifting drive mechanisms are controlled by remote controllers.

In actual use, a third hoisting part 7-1 for hoisting the shoulder beam 8 is provided at the bottom of the two lower hoisting devices 7 . Moreover, the two third hanging parts 7-1 are respectively connected to the two first hanging parts 8-2 provided on the upper part of the shoulder pole beam 8. The connection between the third hanging part 7-1 and the first hanging part 8-2 is hinged. In this embodiment, the third hoisting part 7-1 is connected to the first hoisting part 8-2 through a pin shaft or pin, and the third hoisting part 7-1 is connected to the first hoisting part 8-2. All are provided with installation holes for the installation of the pin shafts or pin bolts. Both the third hoisting part 7-1 and the first hoisting part 8-2 are hoisting rings.

In this embodiment, the hanger 10 is hoisted on the two pole beams 8 by two sets of slings 21 at the front and rear, and each set of slings 21 includes two left and right lines respectively fixed on the two poles. Sling 21 on beam 8. The hanger 10 is respectively provided with four upper suspension rings 10 - 1 for hoisting by the four slings 21 respectively, and the four upper suspension rings 10 - 1 are arranged on four vertices of a rectangle. Moreover, the lower hanging ring 8-1 is connected to the upper hanging ring 10-1 through a pin shaft or a pin bolt.

In this embodiment, both the upper sling 6 and the lower sling 7 use a pulley block and the two are connected by a hoisting cable 5 .

As shown in Figure 1, the upper spreader 6 includes an upper mounting frame and 5 upper pulleys mounted on the upper mounting frame from front to rear, and the lower lifting device 7 includes a lower mounting frame and 3 pulleys mounted on the upper mounting frame from front to rear. For the lower pulley on the lower mounting frame, the upper pulley and the lower pulley are arranged in a staggered manner, and the 5 upper pulleys and the 3 lower pulleys are connected by hoisting ropes 5 .

As shown in Figure 2, the stiffening beam section 13 is hoisted on the vertical shaft by multiple connecting ropes 12, and the upper part of the beam body of the stiffening beam section 13 is provided with a plurality of connecting ropes 12 fixed respectively. The second hanging part 13-1.

Two universal hinges 11 are arranged directly below the vertical rotating shaft, and the two universal hinges 11 are respectively the first universal hinge installed at the bottom of the vertical rotating shaft and the first universal hinge located at the first universal hinge. The second universal hinge below the hinge, the first universal hinge is tightly connected with the second universal hinge; the connecting rope 12 is the first connecting rope connected with the first universal hinge or The second connecting rope connected with the second universal hinge, the number of the first connecting rope and the second connecting rope is multiple; the upper end of each first connecting rope is fixed on the On the first universal hinge and its lower end is fixed on the second suspension part 13-1, and the upper end of each second connecting rope is fixed on the second universal hinge and its lower end is fixed on the second universal hinge. On the lifting part 13-1.

In this embodiment, the number of the second hoisting parts 13-1 is eight, and the eight second hoisting parts 13-1 are arranged in three rows, and the second hoisting parts 13-1 in the three rows To the end are respectively the first row of hoisting parts, the second row of hoisting parts and the third row of hoisting parts; the first row of hoisting parts and the third row of hoisting parts each include three along the direction of the transverse bridge from left to right The second hoisting parts 13-1 arranged on the same straight line, the three second hoisting parts 13-1 are left side hoisting parts, middle part hoisting parts and right side hoisting parts respectively from left to right; The hoisting parts are located directly below the vertical shaft, the first row of hoisting parts and the third row of hoisting parts are symmetrically arranged on the front and rear sides of the second row of hoisting parts, and the second row of hoisting parts including two left and right second lifting parts 13-1;

The two second slings 13-1 in the second row of slings and the middle slings in the first row and the third row of slings all pass through the first connection The rope is connected with the first universal joint, and the four second lifting parts 13-1 connected with the first universal joint are arranged on four vertices of a rhombus; the first row of lifting parts and The left hanging piece and the right hanging piece in the third row of hanging pieces are both connected to the second universal hinge through the second connecting rope, and the second universal hinge connected The four second suspension parts 13-1 are arranged on four vertices of a rectangle.

In this embodiment, the second lifting part 13-1 is a lifting ring.

In this embodiment, the first universal hinge includes a first hinge seat arranged horizontally, a first hinge shaft installed in the middle of the first hinge seat, and two symmetrically mounted on the first hinge shaft. The second articulated shafts on the front and rear sides, the first articulated shaft and the two second articulated shafts are installed on the first articulated seat and all three are arranged in parallel, the first articulated shaft and the two The two second articulated shafts are arranged horizontally; the two second slings 13-1 in the second row of slings are respectively connected to the first articulated shafts by the first connecting ropes, The first row of hoisting parts and the middle part of the third row of hoisting parts are respectively connected to the two second hinge shafts through the first connecting ropes.

The second universal hinge includes a second hinge base arranged horizontally and two third hinge shafts mounted symmetrically on the second hinge base at the front and rear, the two third hinge shafts are front hinged respectively. shaft and the rear side hinge shaft located on the right side of the front side hinge shaft; the left side hoisting piece and the right side hoisting piece in the first row of hoisting pieces are respectively connected to the The front side hinge shaft is connected, and the left side suspension part and the right side suspension part in the third row of suspension parts are respectively connected to the rear side hinge shaft through the second connecting rope.

In this embodiment, the two third hinge axes are respectively located directly below the two second hinge axes.

As shown in Figure 6, when adopting the utility model to erect the stiffening beam of the suspension bridge, the suspension bridge of the construction is provided with two said pylons 20 before and after; From front to back, it is divided into a front side beam body, a middle beam body and a rear side beam body 24, the middle beam body is located between the two cable towers 20, and the front side beam body is located in front of the front side cable towers. side, and the rear side beam body 24 is located at the rear side of the rear side cable tower; and when erecting the stiffened beam of the suspension bridge under construction, the following steps are included:

Step 1, erecting the rear side beam body: erecting the rear side beam body 24;

Step 2, hoisting balance mechanism installation: a balance cable hoist 18 is installed at the rear end of the rear side beam body 24, and a fixing member 22 for fixing the balance cable 17 is arranged in the middle of the pole beam 8 of the rotary hoisting device; the balance cable The upper end of 17 is fixed on the fixture 22 and its lower end is fixed on the balance cable winch 18;

Step 3. Erection of the middle beam body: use the rotary hoisting equipment to erect the middle beam body; the middle beam body is formed by splicing a plurality of stiffened beam sections 13, and the plurality of stiffened beam sections 13 are formed along the length of the longitudinal bridge. Lay out from front to back;

When erecting the middle beam body, erect a plurality of stiffened beam sections 13 from back to front, and the erection methods of a plurality of stiffened beam sections 13 are all the same; for any one of the stiffened beam sections 13 When erecting, the process is as follows:

Step 301, longitudinal translation of the beam section: use the beam transport trolley 19 to translate the currently erected stiffened beam section 13 along the beam body currently erected in the stiffened beam until the currently erected stiffened beam section 13 is translated to the Above the front end of the currently erected beam body; during the translation process, the central axis of the currently erected stiffening beam section 13 is laid along the transverse bridge direction;

Step 302, move the rotating sling above the beam section: move the rotating sling 9 of the rotating hoisting device to the current position that has been translated in step 301 through the balance cable hoist 18 installed at the rear end of the rear side beam body 24 Erect the top of the stiffening beam section 13, and connect the currently erected stiffening beam section 13 with the rotating hoist 9;

Step 303, hoisting the beam section: using the hoisting mechanism of the rotary hoisting device to hoist the currently erected stiffening beam section 13;

Step 304, horizontal rotation of the beam section: through the rotation drive mechanism of the rotary hoisting device, the currently erected stiffened beam section 13 is driven to rotate horizontally by 90° until the central axis of the currently erected stiffened beam section 13 moves along the longitudinal bridge direction layout;

Step 305, beam segment hoisting: through the hoisting mechanism of the rotating hoisting device, hoist the currently erected stiffened beam segment 13 horizontally rotated in place in step 304 until the currently erected stiffened beam segment 13 is hoisted to the pre-designed the erection position;

Step 306, beam section erection: fasten and connect the currently erected stiffened beam section 13 hoisted in place in step 305 with the currently erected beam body of the stiffened beam, and complete the erection process of the currently erected stiffened beam section 13;

Step 307, erecting the next beam section: install the method described in step 301 to step 306, and erect the next stiffening beam section 13;

Step 308, repeat step 307 one or more times until the erection process of all stiffening beam segments 13 in the middle beam body is completed, and the erection process of the middle beam body is completed;

Step 4. Erection of the front side beam body or the rear side beam body: erect the front side beam body or the rear side beam body 24, and complete the stiffening beam erection process of the suspension bridge under construction. The middle beam body is fastened and connected between the front side beam body and the rear side beam body 24 .

In this embodiment, the number of the balance cable hoist 18 in step 2 is two, and the two balance cable hoists 18 are symmetrically arranged left and right, and the two balance cable hoists 18 pass through one of the balance cable 17 respectively. Connect with two said pole beams 8.

Moreover, a fixing piece 22 for fixing the balance cable 17 is arranged in the middle of each shoulder beam 8 .

In this embodiment, when the beam section is hoisted in step 303, the currently erected stiffened beam section 13 is lifted upwards from the beam transport trolley 19 by controlling the two lifting drive mechanisms; and by controlling the balance cable hoist 18, the The two lower slings 7 are respectively moved to directly below the two upper slings 6 ; after the lifting of the beam section in step 303 is completed, the currently erected stiffening beam section 13 is located above the rear side beam body 24 .

When the beam section is hoisted in step 305, the vertical height of the currently erected stiffening beam section 13 is adjusted by controlling the two lifting drive mechanisms; The rear traction drive structure moves the currently erected stiffening beam section 13 forward and backward along the longitudinal bridge direction until the currently erected stiffening beam section 13 is hoisted to a pre-designed erection position.

Moreover, in step 302, only the balance cable winch 18 needs to be started, and the rotating hoisting device 9 of the rotating hoisting device can be easily and quickly moved above the currently erected stiffening beam section 13 that has been translated in place in step 301 . When lifting the beam section in step 303, by controlling the two lifting drive mechanisms and the balance cable hoist 18, under the cooperation of the lifting cable 5 and the balance cable 17, the currently erected stiffening beam section will be completed simply and quickly. In the hoisting process of 13, the currently erected stiffening beam section 13 is hoisted to a vertical position, and at this time, the two lower spreaders 7 are moved to directly below the two upper spreaders 6 respectively.

Moreover, when the beam section is hoisted in step 305, the vertical height of the currently erected stiffening beam section 13 is adjusted through the hoisting cable 5, and the longitudinal bridge position of the currently erected stiffening beam section 13 is adjusted through the traction cable 3, the actual operation It is simple and easy to implement, and can easily and quickly hoist the currently erected stiffening beam section 13 to a pre-designed erection position.

In this embodiment, the currently erected beam body described in step 301 and step 306 is the rear side beam body 24 or the rear side beam body 24 and the front side of the rear side beam body 24 and is currently installed. A spliced beam body formed by assembling all the stiffened beam sections 13 that have been erected.

In this embodiment, after the erection of the beam section in step 306 is completed, the connection between the currently erected stiffening beam section 13 and the rotating hoist 9 is released, and the erection process of the currently erected stiffening beam section 13 is completed.

In this embodiment, when the hoisting balance mechanism is installed in step 2, the balance cable hoist 18 is installed above the rear end of the rear side beam body 24 .

In this embodiment, the load-bearing rail 4 is in the shape of a catenary. The front side traction cable 3-1 and the rear side traction cable 3-2 are also catenary.

In this embodiment, the front and rear ends of the stiffening beam of the construction suspension bridge are respectively erected on the front and rear bridge piers, and the two bridge piers are respectively the front piers and the rear piers located behind the front piers. Side abutment; the front side beam body is erected between the front side abutment and the front side cable tower, and the rear side beam body 24 is erected between the rear side abutment and the rear side cable tower between.

Moreover, both the front abutment and the rear abutment are abutments.

In the actual construction process, when erecting the middle beam body, multiple stiffened beam sections 13 can also be erected from front to rear; at this time, when the lifting balance mechanism is installed in step 2, the Install the balance cable hoist 18 at the front end of the front side beam body; when performing the longitudinal translation of the beam section in step 301, use the beam transport trolley 19 and carry out the longitudinal translation of the currently erected stiffening beam section 13 along the front side beam body until the The currently erected stiffening beam section 13 is translated to above the rear end of the front side beam body.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (10)

1. A suspension bridge stiffened beam rotary hoisting device, characterized in that: comprise a stiffened beam section (13) that is hoisted and can carry out a rotating hoisting device (9) that can horizontally rotate the hoisted stiffened beam section (13), located in the rotating The shoulder pole beam (8) directly above the spreader (9) and the hoisting mechanism for hoisting the rotating spreader (9) through the shoulder pole beam (8), the stiffening beam section (13) is hoisted on the rotating spreader (9) and its Located directly below the rotating hoist (9), the rotating hoist (9) is hoisted on the pole beam (8) and it is located directly below the pole beam (8), and the pole beam (8) is hoisted on the on the hoisting mechanism and it is located below the hoisting mechanism; the hoisting mechanism is installed on the cable tower (20) of the construction suspension bridge; the rotating hanger (9) includes a hoisting frame, a vertical A rotary drive mechanism that rotates horizontally to the rotary shaft and drives the vertical rotary shaft, the stiffening beam section (13) is hoisted below the vertical rotary shaft and connected with the vertical rotary shaft, the rotary drive mechanism is installed on the The lifting frame is connected to the vertical rotating shaft through a transmission mechanism; the rotating hoisting device (9) and the pole beam (8) are arranged horizontally. 2. The suspension bridge stiffening beam rotation hoisting device according to claim 1, characterized in that: the rotation driving mechanism is a driving motor (14) controlled by a remote controller. 3. According to claim 1 or 2 described rotating and hoisting equipment for stiffening beams of suspension bridges, it is characterized in that: the transmission mechanism is a gear transmission mechanism, and the vertical rotating shaft is a gear shaft (15) arranged vertically, so The gear transmission mechanism includes a driven gear (15-1) coaxially fixedly set on the upper part of the gear shaft (15) and a driving gear (15-2) meshed with the driven gear (15-1). Both the gear (15-1) and the driving gear (15-2) are arranged horizontally; the driving gear (15-2) is in transmission connection with the rotation driving mechanism. 4. According to the suspension bridge stiffening beam rotary hoisting device according to claim 3, it is characterized in that: a rotating shaft (15-3) for driving gear (15-2) is installed on the said hoisting frame, and said rotating shaft (15-2) -3) It is arranged vertically and is connected with the hoisting frame through a bearing, the driving gear (15-2) is coaxially and fixedly sleeved on the rotating shaft (15-3), and the driving gear ( 15-2) Transmission connection with the rotary drive mechanism through the rotating shaft (15-3); the gear shaft (15) is installed in the middle of the lifting frame, and the middle part of the lifting frame is equipped with a coaxial sleeve The gear shaft sleeve (16) on the gear shaft (15), is connected by a bearing between the gear shaft sleeve (16) and the gear shaft (15). 5. The suspension bridge stiffening beam rotation hoisting device according to claim 1 or 2, characterized in that: the hoisting frame comprises a horizontal rotating platform (9-1) and a hanger supported below the horizontal rotating platform (9-1) (10); the rotating sling (9) is hoisted on the pole beam (8) by two groups of slings (21) before and after, and the left and right sides bottoms of the pole beam (8) are respectively provided with a sling ( 21) The lower ring (8-1) for hoisting, the upper part of the left and right sides of the shoulder beam (8) is respectively provided with an upper ring (8-2) for the hoisting of the hoisting mechanism; the vertical shaft is installed on On the horizontal rotating platform (9-1). 6. According to the suspension bridge stiffening beam rotating hoisting device according to claim 1 or 2, it is characterized in that: the stiffening beam section (13) is hoisted on the vertical rotating shaft by multiple connecting ropes (12), and the stiffening beam section The upper part of the beam body of (13) is provided with a plurality of second hanging parts (13-1) for fixing the plurality of connecting ropes (12) respectively. 7. According to the suspension bridge stiffening beam rotary hoisting device according to claim 6, it is characterized in that: two universal hinges (11) are arranged directly below the vertical rotating shaft, and the two universal hinges (11) are respectively It is the first universal hinge installed at the bottom of the vertical shaft and the second universal hinge located directly below the first universal hinge, and the first universal hinge is tightly connected to the second universal hinge. fixed connection; the connecting rope (12) is the first connecting rope connected with the first universal hinge or the second connecting rope connected with the second universal hinge, the first connecting rope and the The quantity of the second connecting ropes is multi-track; the upper end of each first connecting rope is fixed on the first universal hinge and its lower end is fixed on the second hanging part (13-1). The upper ends of the second connecting ropes are all fixed on the second universal hinge and the lower ends are all fixed on the second sling (13-1). 8. According to the suspension bridge stiffening beam rotary hoisting device according to claim 7, it is characterized in that: the number of the second hoisting parts (13-1) is eight, and the eight second hoisting parts (13-1) It is arranged in three rows, and the second hoisting parts (13-1) in the three rows are respectively the first row of hoisting parts, the second row of hoisting parts and the third row of hoisting parts from front to back; the first row of hoisting parts All include three second hoisting parts (13-1) arranged on the same straight line from left to right along the transverse bridge direction in the third row of hoisting parts, and the three second hoisting parts (13-1) From left to right, they are the left hanging piece, the middle hanging piece and the right hanging piece; The hoisting pieces are arranged symmetrically on the front and back sides of the second row of hoisting pieces, and the second row of hoisting pieces includes two left and right second hoisting pieces (13-1); The two second slings (13-1) of the second row of slings and the middle slings of the first row and the third row of slings pass through the first A connecting rope is connected with the first universal hinge, and the four second lifting parts (13-1) connected with the first universal hinge are arranged on four vertices of a rhombus; the first Both the left side hoisting piece and the right side hoisting piece in the row of hoisting pieces and the third row of hoisting pieces are connected to the second universal joint through the second connecting rope, and connected to the second universal joint. The four second lifting parts (13-1) connected to the hinge are arranged on four vertices of a rectangle; The first universal hinge includes a first hinge base arranged horizontally, a first hinge shaft installed in the middle of the first hinge base, and two first hinge shafts symmetrically installed on the front and rear sides of the first hinge shaft. Two articulated shafts, the first articulated shaft and the two second articulated shafts are installed on the first articulated seat and all three are arranged in parallel, the first articulated shaft and the two second articulated shafts The hinge shafts are arranged horizontally; the two second hoisting parts (13-1) in the second row of hoisting parts are respectively connected to the first hinge shafts through the first connecting ropes, and the first The first row of slings and the middle slings of the third row of slings are respectively connected to the two second hinge shafts through the first connecting rope; The second universal hinge includes a second hinge base arranged horizontally and two third hinge shafts mounted symmetrically on the second hinge base at the front and rear, the two third hinge shafts are front hinged respectively. shaft and the rear side hinge shaft located on the right side of the front side hinge shaft; the left side hoisting piece and the right side hoisting piece in the first row of hoisting pieces are respectively connected to the The front side hinge shaft is connected, and the left side suspension part and the right side suspension part in the third row of suspension parts are respectively connected to the rear side hinge shaft through the second connecting rope. 9. According to claim 1 or 2, the rotating hoisting device for stiffening beams of suspension bridges is characterized in that: the hoisting mechanism includes two groups of traveling cranes (1) symmetrically arranged on the left and right sides, and two left and right roads for the two groups of walking cranes respectively. The load-bearing rails (4) for the crane (1) to move back and forth, the crane traction mechanism for driving the two groups of traveling cranes (1) to move back and forth, and the two groups of traveling cranes (1) to drive the two groups of traveling cranes (1) to move forward and backward For the mobile crane, the load-bearing rails (4) of the two roads are arranged symmetrically and both are laid along the longitudinal direction of the bridge; The front and rear ends of the track cable (4) are respectively anchored on the two cable towers (20), and the two cable towers (20) are respectively the front cable tower and the rear cable tower located at the rear side of the front cable tower. Side cable tower; the crane is located between the two cable towers (20), the crane is located below the two groups of the traveling cranes (1) and it is connected to the two groups of the traveling cranes (1) connected as a whole; each group of the traveling cranes (1) includes two front and rear traveling cranes (1) that are installed on the same load-bearing rail (4) and move forward and backward synchronously along the load-bearing rail (4). ), the two traveling cranes (1) are fastened and connected as a whole by a connecting piece, and the two are respectively the front crane and the rear crane located at the rear side of the front crane; the crane The vehicle traction mechanism includes two left and right front traction cables (3-1) respectively connected to the two front cranes and two left and right rear traction cables respectively connected to the two rear cranes. (3-2), the two front traction cables (3-1) are arranged symmetrically, and the two rear traction cables (3-2) are symmetrically arranged; the front cable tower is provided with There are two left and right front traction drive structures, the front ends of the two front traction cables (3-1) are respectively connected to the two front traction drive structures; The rear traction drive structure, the rear ends of the two rear traction cables (3-2) are respectively connected to the two rear traction drive structures; the front traction drive structure and the rear traction drive structure The mechanisms are hoists; the pole beam (8) is hoisted on the crane and is located below the crane. 10. According to the suspension bridge stiffening beam rotary hoisting device according to claim 9, it is characterized in that: the number of the cranes is two and the two cranes are symmetrically arranged on the left and right, and the two cranes are respectively hoisted on Below the two groups of traveling cranes (1); the number of the shoulder-pole beams (8) is two, and the two shoulder-pole beams (8) are arranged horizontally and both are arranged along the longitudinal bridge direction. The shoulder pole beams (8) are symmetrically arranged left and right, and the two are respectively hoisted below the two cranes; Each of the cranes includes an assembled hanger and a hoisting mechanism connected with the assembled hanger, the hoisting mechanism includes a hoisting rope (5) and two hoisting drive mechanisms, the two The hoisting drive mechanism is a winch and the two are respectively installed on the two pylons (20), and the front and rear ends of the hoisting cable (5) are respectively connected to the two described hoisting drive mechanisms; The assembled sling includes two front and rear upper slings (6) and two front and rear lower slings (7) connected to the two upper slings (6) by hoisting ropes (5). The tool (6) and the two lower slings (7) are located on the same vertical plane and are located between the two pylons (20); the two upper slings (6) are respectively the front a side upper spreader and a rear upper spreader located behind said front upper spreader; The front upper spreaders of the two cranes are respectively located directly below the two front cranes and are assembled with the two front cranes respectively. The upper hangers on the rear side are respectively located directly below the two rear cranes and the two are respectively assembled with the two rear cranes; each shoulder beam (8) is hoisted on two Below the lower spreader (7).