CN103663168B - Special crane for transporting fan blade - Google Patents

Abstract

A special crane for transporting fan blades, including a main structure, a cart system, a lifting system, a spreader traverse system, a power station, and an operating platform; the main structure is a box-shaped beam structure, and the cart system includes a running mechanism and a slewing mechanism , is the running and steering system of the whole machine. The hoisting system is a system in which the hoist lifts the hook group through wire ropes and pulleys. The spreader traverse system is a system in which the hoist moves the spreader trolley through wire ropes and pulleys. The power station includes a diesel generator. And the hydraulic pump station; the operation console is equipped with command switches for the operation of various mechanisms to control the working status of the hoisting hoist, traversing hoist, hydraulic motor and hydraulic slewing reducer. The hoisting method is the joint operation of two special cranes for handling fan blades. Beneficial effects are: it can realize straddle crane, turning at any angle on the spot, moving forward, multi-layer and multi-column storage; flexible movement, high maneuverability and high efficiency; compact structure, light weight, good ground adaptability; safe lifting ,reliable.

Description

A special crane for handling fan blades

technical field

The invention belongs to the technical field of hoisting machinery, in particular to a special crane for handling fan blades.

Background technique

The fan blades of large-scale wind power generation equipment have the characteristics of special materials, easy damage, irregular shape, long size and non-uniformity. With the vigorous promotion of wind power generation, fan blades have achieved specialization, batch production, and flow-through production. Some companies have begun to plan dedicated blade storage yards or docks to transport the assembled fan blades from the factory building to the storage yard or dock. , with regular storage, and then shipped to the installation site by a special vehicle or ship when needed. In the prior art, two truck cranes or crawler cranes are generally used to hoist and transport large fan blades simultaneously in the form of a single arm frame. The disadvantages of the prior art are: due to the super-long blades and unprofessional equipment, it is not flexible when turning, and there will be a dead angle against the pole, which is inefficient and unsafe. Therefore, the special-purpose crane for transporting fan blades is a technical problem urgently to be solved in this field.

Contents of the invention

In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to develop a special crane for fan blade handling to realize flexible, safe and efficient hoisting and handling of fan blades.

The technical solution of the present invention is: a special crane for transporting fan blades, including a main structure, a cart system, a hoisting system, a spreader traverse system, a power station and an operating platform, and is characterized in that:

The main structure includes a rectangular frame composed of two upper beams, two track beams, four outriggers and two lower beams. Each beam forming the rectangular frame is a box-shaped beam structure. The upper ends of the outriggers are connected, and the lower ends of the two outriggers are respectively connected with the two ends of a lower beam. A track beam, two outriggers and a lower beam form a "mouth"-shaped structural frame, and the other track beam, another Two outriggers and another lower beam form another "mouth"-shaped structural frame. The tops of the four outriggers form a mouth-shaped frame;

The cart system includes a running mechanism and a slewing mechanism. The running mechanism includes tires, traveling reducer, hydraulic motor and wheel frame. The wheel frame is an inverted T-shaped box-shaped steel structure, and the inverted T-shaped box-shaped steel structure The three ends are in the form of flange connection plates. The travel reducer is installed at both ends of the horizontal beam of the wheel frame. The hydraulic motor is installed in the wheel frame and connected to the input end of the travel reducer. The tire is installed at the output end of the travel reducer. The slewing mechanism includes a slewing bearing, a pinion and a hydraulic slewing reducer. The hydraulic slewing reducer is installed at the lower part of the lower beam of the main structure, and the pinion is installed at the output end of the hydraulic slewing reducer. The slewing bearing is an external gear type. The upper part of the bearing is connected to the lower end of the lower beam of the main structure, the lower part of the slewing bearing is connected to the top of the column of the wheel frame, and the pinion gear installed at the output end of the hydraulic slewing reducer meshes with the large ring gear of the slewing bearing;

The hoisting system includes four hoisting hoists, two hoisting wire ropes, two sets of hoisting pulley blocks, two small hanging beams, a large hoisting beam and a hook group, and the four hoisting hoists are installed on the main structure The lower part of the two outriggers of a "mouth"-shaped structural frame, two sets on each outrigger, two small suspension beams are hinged at both ends of the large suspension beam, and the hook group is hinged in the middle of the large suspension beam. Each group of hoisting pulleys includes four redirection pulleys, two balance pulleys, two guide pulleys and a pair of lifting pulleys. The four redirection pulleys are installed on the top of the track beam of the main structure, two on one side , two balance pulleys are installed at the end of one side of the main structure track beam, two guide pulleys are installed on the spreader trolley of the traversing system, a pair of lifting pulleys includes two movable pulleys installed at both ends of the small suspension beam and three installation For the three fixed pulleys on the spreader trolley of the traversing system, a wire rope is wound around the hoisting pulley block and the small suspension beam, and the two ends are connected to two hoisting hoists to form a hoisting wire rope winding system for the spreader;

The spreader traversing system includes two sets of traversing devices installed on the rail beams on both sides of the main structure. and two rails, the two rails are installed in parallel on the top of the rail beam of the main structure, the spreader trolley is a box-shaped structure welded by plates, two rows of rollers matching the two rails are installed under the spreader trolley, the spreader trolley The top of the trolley is equipped with a mounting seat for the wire rope guide pulley, and the left and right sides of the spreader trolley are provided with mounting seats for installing the three fixed pulleys of the lifting system. The hoist is installed at the top end of the main structure track beam, the fixed pulley of the traversing pulley block is installed at the other end of the main structure track beam, the guide pulley of the traversing pulley set is installed on the top of the spreader trolley, and the traversing wire rope is wound on the A closed-loop spreader traverse wire rope traction system is formed between the double output rope drums and pulley blocks of the hoist;

The power station is a power source, including a diesel generator and a hydraulic pump station system. The power station is installed on the lower beam of the main structure; The hoist, hydraulic motor and hydraulic slewing reducer are connected to control the working status of the hoisting hoist, traversing hoist, hydraulic motor and hydraulic slewing reducer;

The console is installed at the front of the legs of the main structure; the console is equipped with command switches for diesel generators, hoisting winches, traverse hoists, hydraulic motors and hydraulic slewing reducers, and each command switch of the console is connected to the power The diesel generator in the station is connected with the hydraulic pump station system to control the working status of the diesel generator, hoisting hoist, traverse hoist, hydraulic motor and hydraulic slewing reducer.

The lifting method of a special crane for fan blade handling according to the present invention is characterized in that: the lifting method is two cranes specially used for fan blade handling for joint operation and lifting, and one special crane for fan blade handling is hooked. Hang the tail end of the fan blade, and hang the front part of the fan blade with the hook of another special crane for fan blade handling.

The beneficial effects of the present invention are:

1. It can straddle the crane, turn and move forward at any angle on the spot, and the equipment moves flexibly, with high mobility and high efficiency;

2. The operating mechanism adopts the direct drive form of "hydraulic motor + travel reducer + tire", which has compact structure, light weight and good ground adaptability;

3. The crane has the functions of lifting, lowering and lateral movement, which can easily realize the multi-layer and multi-column storage of blades in the yard or wharf;

4. Using straddle hoisting and handling, the blades can be hoisted on professional transport vehicles safely, reliably and efficiently;

5. A single piece of equipment can flexibly complete other suitable load hoisting and handling work in the factory; the large hanging beam can be easily removed, and the lower part of the small hanging beam can be replaced with a light hook group to realize double-sided lifting of a single machine.

Description of drawings

Figure 1 is a schematic diagram of the blade lifting method

Figure 2 is a schematic diagram of the cart system

Figure 3 is a schematic diagram of the lifting system

Figure 4 is a schematic diagram of the spreader traverse system

Figure 5 is a schematic diagram of the fan blade stacking method

In the figure: 1. Main structure, 2. Cart system, 2.1, Tires, 2.2, Travel reducer, 2.3, Hydraulic motor, 2.4, Wheel frame, 2.5, Slewing bearing, 2.6, Pinion, 2.7, Hydraulic slewing reducer , 3. Lifting system, 3.1, Lifting hoist, 3.2, Lifting wire rope, 3.3, Lifting pulley block, 3.4, Small lifting beam, 3.5, Large lifting beam, 3.6, Hook group, 4, Spreader traverse system , 4.1, traversing hoist, 4.2, traversing wire rope, 4.3, traversing pulley block, 4.4, spreader trolley, 4.5, track, 5, power station, 6, console, 7, fan blade.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

The special crane for fan blade handling includes main structure 1, cart system 2, hoisting system 3, spreader traverse system 4, power station 5 and operating platform 6;

The main structure 1 includes a rectangular frame composed of two upper beams, two track beams, four outriggers and two lower beams. The upper ends of the legs are connected, and the lower ends of the two outriggers are respectively connected with the two ends of a lower beam. A track beam, two outriggers and a lower beam form a "mouth"-shaped structural frame, and the other track beam and the other two The first outrigger and another lower beam form another "mouth"-shaped structural frame. The two ends of the two upper beams are respectively connected with the two "mouth"-shaped structural frames at the ends of the track beams. The top of the outrigger forms a mouth-shaped frame;

The cart system 2 includes a running mechanism and a slewing mechanism. The running mechanism includes a tire 2.1, a travel reducer 2.2, a hydraulic motor 2.3 and a wheel frame 2.4. The wheel frame 2.4 is an inverted T-shaped box-shaped steel structure with an inverted T shape. The three ends of the box-shaped steel structure are in the form of flange connection plates. The travel reducer 2.2 is installed at both ends of the horizontal beam of the wheel frame 2.4. The hydraulic motor 2.3 is installed in the wheel frame 2.4 and connected to the input end of the travel reducer 2.2. 2.1 is installed at the output end of the travel reducer 2.2, the slewing mechanism includes a slewing bearing 2.5, a pinion 2.6 and a hydraulic slewing reducer 2.7, the hydraulic slewing reducer 2.7 is installed at the lower part of the lower beam of the main structure 1, and the pinion 2.6 is installed at The output end of the hydraulic slewing reducer 2.7, the slewing bearing is an external gear type, the upper part of the slewing bearing 2.5 is connected to the lower end of the lower beam of the main structure 1, the lower part of the slewing bearing 2.5 is connected to the top of the column of the wheel frame 2.4, and installed in the hydraulic slewing reducer 2.7 The pinion 2.6 at the output end meshes with the large ring gear of the slewing bearing 2.5;

Lifting system 3 includes four lifting winches 3.1, two lifting wire ropes 3.2, two sets of lifting pulley blocks 3.3, two small lifting beams 3.4, one large lifting beam 3.5 and one hook group 3.6, four lifting winches 3.1 Installed on the lower part of the two outriggers of a "mouth"-shaped structural frame of the main structure 1, two on each outrigger, two small suspension beams 3.4 are hinged at both ends of the large suspension beam 3.5, and the hook group is hinged on the In the middle of the large suspension beam 3.5, each group of lifting pulleys 3.3 of the two groups of lifting pulleys 3.3 includes four redirection pulleys, two balance pulleys, two guide pulleys and a pair of lifting pulleys, and the four redirection pulleys are installed On the top of the track beam of the main structure 1, two on one side, two balance pulleys are installed at the end of one side of the track beam of the main structure 1, two guide pulleys are installed on the spreader trolley 4.4 of the traverse system 4, and one pair of lifting The pulleys include two movable pulleys installed at both ends of the small suspension beam 3.4 and three fixed pulleys installed on the traverse system 4 spreader trolley 4.4, a wire rope 3.2 is wound around the hoisting pulley block 3.3 and the small suspension beam 3.4, Both ends are connected to two hoisting hoists 3.1 to form a hoisting wire rope winding system for a spreader;

The spreader traversing system 4 includes two sets of traversing devices installed on the rail beams on both sides of the main structure 1, and each set of traversing devices includes a traversing winch 4.1, a traversing wire rope 4.2, a traversing pulley block 4.3, a The spreader trolley 4.4 and two rails 4.5, the two rails 4.5 are installed in parallel on the top of the rail beam of the main structure 1, the spreader trolley 4.4 is a box-shaped structure welded with plates, and the spreader trolley 4.4 is equipped with two rows and Two rails 4.5 supporting rollers, the top of the spreader trolley 4.4 is provided with a mounting seat for a wire rope guide pulley, the left and right sides of the spreader trolley 4.4 are provided with mounting seats for installing three fixed pulleys of the lifting system 3, and the traverse hoist 4.1 It is a hoist with double connections and double-out rope drums. The traversing hoist 4.1 is installed at the top end of the track beam of the main structure 1, and the fixed pulley of the traversing pulley block 4.3 is installed at the other end of the track beam of the main structure 1. The traversing The guide pulley of the pulley block 4.3 is installed on the top of the spreader trolley 4.4, and the traversing wire rope 4.2 is wound between the double output rope reels of the traversing hoist 4.1 and the traversing pulley block 4.3, forming a closed-loop spreader traversing wire rope traction system;

The power station 5 is a power source, including a diesel generator and a hydraulic pump station system. The power station 5 is installed on the lower beam of the main structure 1; the diesel generator is connected to the hydraulic pump station system, and the hydraulic pump station system is connected to the hoisting hoist 3.1, Traversing hoist 4.1, hydraulic motor 2.3 and hydraulic slewing reducer 2.7 are connected to control the working status of hoisting hoist 3.1, traversing hoist 4.1, hydraulic motor 2.3 and hydraulic slewing reducer 2.7;

The console 6 is installed at the front of the legs of the main structure 1; the console 6 is provided with command switches for a diesel generator, a lifting winch 3.1, a traverse hoist 4.1, a hydraulic motor 2.3 and a hydraulic rotary reducer 2.7, and the console 6 Each command switch is respectively connected with the diesel generator and the hydraulic pump station system of the power station 5 to control the working status of the diesel generator, hoisting hoist 3.1, traverse hoist 4.1, hydraulic motor 2.3 and hydraulic slewing reducer 2.7.

The hoisting method is the joint operation of two cranes dedicated to handling fan blades, one crane hooks the tail end of fan blades 7, and the other crane hangs the front of fan blades 7 with the hook , two special-purpose cranes for handling the fan blades carry out the transfer and multi-layer and multi-column storage of the fan blades 7 as required.

Claims (2)

1. A special crane for handling fan blades, including a main structure (1), a cart system (2), a lifting system (3), a spreader traverse system (4), a power station (5), and an operating platform ( 6), characterized in that: The main structure (1) includes a rectangular frame composed of two upper beams, two track beams, four legs and two lower beams, each beam forming the rectangular frame is a box-shaped beam structure, and the two ends of a track beam It is connected to the upper ends of two outriggers, and the lower ends of the two outriggers are respectively connected to both ends of a lower beam. A track beam, two outriggers and a lower beam form a "mouth"-shaped structural frame, and the other track The beam, the other two outriggers and another lower beam form another "mouth"-shaped structural frame. The two ends of the two upper beams are respectively connected with the two "mouth"-shaped structural frames at the end of the track beam. The track beam forms a square frame at the top of the four outriggers; The cart system (2) includes a running mechanism and a slewing mechanism, and the running mechanism includes tires (2.1), travel reducer (2.2), hydraulic motor (2.3) and wheel frame (2.4), and the wheel frame (2.4 ) is an inverted T-shaped box-shaped steel structure, and the three ends of the inverted T-shaped box-shaped steel structure are in the form of flange connection plates. The travel reducer (2.2) is installed at both ends of the horizontal beam of the wheel frame (2.4), and the hydraulic motor ( 2.3) Installed in the wheel frame (2.4) and connected to the input end of the travel reducer (2.2), the tire (2.1) is installed at the output end of the travel reducer (2.2), the slewing mechanism includes a slewing bearing (2.5), pinion (2.6) and a hydraulic rotary reducer (2.7), the hydraulic rotary reducer (2.7) is installed at the lower part of the lower beam of the main structure (1), and the pinion (2.6) is installed at the output end of the hydraulic rotary reducer (2.7), The slewing bearing is an external gear type, the upper part of the slewing bearing (2.5) is connected to the lower end of the lower beam of the main structure (1), the lower part of the slewing bearing (2.5) is connected to the top of the column of the wheel frame (2.4), and is installed on the hydraulic slewing reducer ( 2.7) The pinion gear (2.6) at the output end meshes with the large ring gear of the slewing bearing (2.5); The hoisting system (3) includes four hoisting winches (3.1), two hoisting wire ropes (3.2), two groups of hoisting pulley blocks (3.3), two small suspension beams (3.4), a large suspension beam ( 3.5) and a hook group (3.6), four lifting hoists (3.1) are installed on the lower part of the two legs of a "mouth"-shaped structural frame of the main structure (1), two on each leg, two A small suspension beam (3.4) is hinged at the two ends of the large suspension beam (3.5), and the suspension hook group is hinged at the middle part of the large suspension beam (3.5), and each group of lifting pulleys (3.3) of the two groups of lifting pulleys ( 3.3) Including four redirection pulleys, two balance pulleys, two guide pulleys and a pair of lifting pulleys, the four redirection pulleys are installed at both ends of the top of the track beam of the main structure (1), two on one side and two The balance pulley is installed on the end of one side of the main structure (1) track beam, two guide pulleys are installed on the traverse system (4) spreader trolley (4.4), and a pair of lifting pulleys are installed on the small suspension beam (3.4) Two movable pulleys at both ends and three fixed pulleys installed on the spreader trolley (4.4) of the traversing system (4), a steel wire rope (3.2) is wound around the hoisting pulley block (3.3), the small suspension beam (3.4) , both ends are connected to two hoisting hoists (3.1) to form a hoisting wire rope winding system for a spreader; The spreader traversing system (4) includes two sets of traversing devices installed on the rail beams on both sides of the main structure (1), each set of traversing devices includes a traversing hoist (4.1), a traversing wire rope (4.2), traversing pulley block (4.3), a spreader trolley (4.4) and two rails (4.5), the two rails (4.5) are installed in parallel on the top of the track beam of the main structure (1), and the spreader The trolley (4.4) is a box-shaped structure welded with plates. Two rows of rollers matching the two rails (4.5) are installed under the spreader trolley (4.4). The left and right sides of the spreader trolley (4.4) are provided with mounting seats for installing the three fixed pulleys of the hoisting system (3). 4.1) Installed on the top end of the track beam of the main structure (1), the fixed pulley of the traversing pulley block (4.3) is installed on the other end of the track beam of the main structure (1), and the guide pulley of the traversing pulley block (4.3) is installed On the top of the spreader trolley (4.4), the traversing wire rope (4.2) is wound between the double outlet drums of the traversing hoist (4.1) and the traversing pulley block (4.3), forming a closed-loop spreader traversing wire rope traction system; The power station (5) is a power source, including a diesel generator and a hydraulic pump station system, and the power station (5) is installed on the lower beam of the main structure (1); the diesel generator is connected with the hydraulic pump station system, and the hydraulic pump The station system is connected with the hoisting hoist (3.1), the traversing hoist (4.1), the hydraulic motor (2.3) and the hydraulic slewing reducer (2.7), and controls the hoisting hoist (3.1), the traversing hoist (4.1), the hydraulic motor ( 2.3) and the working status of the hydraulic rotary reducer (2.7); The console (6) is installed on the front part of the legs of the main structure (1); the console (6) is equipped with a diesel generator, a hoist (3.1), a traverse hoist (4.1), a hydraulic motor (2.3) and the command switch of the hydraulic slewing reducer (2.7), each command switch of the console (6) is connected with the diesel generator and the hydraulic pump station system of the power station (5) respectively, and controls the diesel generator, hoisting hoist (3.1 ), the working status of the traversing hoist (4.1), the hydraulic motor (2.3) and the hydraulic slewing reducer (2.7). 2. The hoisting method of a special crane for fan blade handling according to claim 1, characterized in that; The hook hangs the tail end of the fan blade (7), another special crane for handling the fan blade hangs the front part of the fan blade (7), and the two special cranes for handling the fan blade carry out the lifting of the fan blade (7) as required. Transfer and multi-layer, multi-column storage.