CN201397253Y

CN201397253Y - Blade testing side-pulling loading device

Info

Publication number: CN201397253Y
Application number: CN2009201536985U
Authority: CN
Inventors: 易强
Original assignee: Zhongneng Wind Power Equipment Co Ltd
Current assignee: Zhongneng Wind Power Equipment Co Ltd
Priority date: 2009-05-08
Filing date: 2009-05-08
Publication date: 2010-02-03
Anticipated expiration: 2019-05-08

Abstract

The utility model discloses a blade testing side-pulling loading device, comprising a bracket, a first transmission part, a second transmission part and anchor; wherein a connection module is fixed onone end of a wire rope A of the first transmission part and another end of the wire rope bypasses a guide pulley, an angle pulley and a tension pulley block to be coiled on a rope-up drum; and the tension pulley block is hung on a bottom seat of a movable pulley; one end of a wire rope B of the second transmission part is fixed on a bottom seat of a fixed pulley and another end of the wire rope Bbypasses pulleys and guide pulleys in a fixed pulley set and a movable pulley set, the goes around a winch drum fixed on an output axle of a worm reducer; a plurality of installation holes are openedon the bracket of the bearing for fixing the guide pulley. The time for adjusting the load force is short, the loading force is easy to control and the loading speed is suitable and stable; the loading process is large and the loading force is huge, the loading number is reduced, the loading force value deviation is small, the testing is more accurate, the testing time is saved. The applicabilityof the side-pulling loading device is increased. The blade testing side-pulling loading device is suitable for testing of blades of various types at different installation heights.

Description

Blade testing layback charger

One, technical field:

The utility model belongs to the field tests of wind power generation blade, relates in particular to blade testing layback charger.

Two, background technology:

Whole world wind energy resources is contained huge, reaches 27.4 trillion watts approximately, and wherein available wind energy is 2,000 ten thousand megawatts, and is also bigger 10 times than tellurian hydraulic power potentials total amount, but it is huge to continue potentiality to be exploited.Wind wheel blade is the critical component of wind power generating set, and its structure is very complicated, and geometric shape is also extremely irregular; Blade moves stressed complexity and load is not easy accurately to determine; The used variety of raw material specification of production blade is more, performance is dispersed big; Different production technologies is bigger to the intensity and the quality influence of blade.Therefore, present computational analysis method can't be carried out accurate assessment to blade strength.In this case, blade full size structure test intuitively just becomes correctness, the reliability of checking blade design, the rationality of manufacturing process and the actual bearer ability of assessment blade construction and a kind of effective means in serviceable life.Test of static strength is a main project of blade testing, and it generally uses the layback charger to test.The layback charger is a kind of windlass at present, and simple in structure, physical dimension is less, can not transfer the height of load(ing) point according to the height that blade is installed, it adopts the mode of driven by motor speed reduction unit directly to load, and the loading dynamics is less, and it is more often to cause loading to count.The mode of driven by motor speed reduction unit directly loads, increase the effect of turning round though played reduction of speed to a certain extent, but speed is still very fast, maximum load power value is also less, adds to load to count morely, and adjusting function is just poor, can increase the adjusting time of test of static strength load like this, increasing is to the damage of blade, and loading force value deviation is big, and accuracy of measurement is poor.Model is big more, and it is just many more to count, just difficult more adjusting.Use so its suitable ting model blade is made test of static strength, and the model of adaptation blade is single.In order to increase maximum load power value as best one can, the power of motor of its use is big, and the reduction gear ratio and the moment of torsion of reductor are big, and then the cost height.

Three, utility model content:

The purpose of this utility model is exactly to solve now with the problems referred to above that exist in the technology, and a kind of height that can transfer load(ing) point according to the height that blade is installed is provided, and the maximum load value is big, the blade testing layback charger that the scope of application is wide.

For finishing the purpose of this utility model, its technical solution is: a kind of blade testing layback charger, and it comprises support, the 1st running part, the 2nd running part and lower margin; Lower margin is installed in parallel in the lower end of support; The 1st running part comprises wire rope A, leading block, angle pulley and receipts rope reel; The 2nd running part comprises wire rope B, gin wheel group, correcting pulley, niggerhead, worm decelerating machine, motor and control system; Wire rope A one end is fixed with coupling assembling, and it is connected on the loading frock of blade by coupling assembling; After the other end of wire rope A is walked around leading block and angle pulley, walk around the tension pulley block of gin wheel group lower end again after, twist in and receive on the rope reel, receiving on the axle of rope reel has handle; The gin wheel component is fixed pulley group, running block and the tension pulley block corresponding with the fixed pulley group, and tension pulley block hangs on the travelling block base; Wire rope B one end is fixed on the fixed pulley base of gin wheel group upper end, and the other end is walked around each pulley in fixed pulley group and the running block in proper order, walk around the correcting pulley at last after, on niggerhead; Niggerhead is fixed on the worm decelerating machine output shaft, and the belt pulley on the input shaft of worm decelerating machine is connected with the belt pulley of motor by belt: motor is by the lead connection control system; Leading block, angle pulley, receipts rope reel and correcting pulley are fixed on the axle bed by axle, and axle bed is fixed on the support, and the pulley of the fixed pulley group of gin wheel group is installed on the fixed pulley base by axle, and the fixed pulley base is fixed on the support upper end; Worm decelerating machine, motor are fixed on the frame of support; Have many group mounting holes on the support of the axle bed of fixed guide pulley, the axle bed of leading block can be installed in every group of mounting hole according to the needs of height.

Above-mentioned described the utility model also comprises road wheel, and its symmetry is installed in both sides, support lower end.

Adopted the utility model when work of such scheme, fixed after being placed on the working position.Crank handle, make receive behind the rope reel tense wire rope A fixing; The driven by motor reductor rotates then, and wire rope B is reeled by the niggerhead tension, and running block is raised, and tension pulley block is raised, and tense wire rope A gives the blade loading force.The size that the utility model is only regulated loading force by the stroke of regulating running block, the adjusting time is short, and loading force is easy to control, has regulating and controlling performance preferably; Its loading velocity is suitable, steady, and the loading stroke is big, loads great efforts, can reduce to load and count, and loading force value deviation is little, and it is more accurate to test, and precision is higher, and has saved test period.The utility model adopts motor band speed reduction unit to slow down to increase and turns round, pulley decelerates, and the mode that pulley blocks carries out deceleration force amplifier again loads, so required motor power is little, reductor reduction gear ratio and moment of torsion are all very little, thereby have reduced cost.Belt pulley has good limit for tonnage performance, and motor has been played the certain protection effect.The installation site of leading block is adjustable up and down, the height of scalable load(ing) point, and the angle of the loading line of force, layback charger lower margin can be regulated along guide rail and install, and then the position of adjusting vane load(ing) point.In a word, the utility model has increased the adaptability of layback charger, can be fit to the test of the blade of various models and different setting height(from bottom)s.Be added with manual loading power,, also can test even when not having electricity.

Four, description of drawings

Below in conjunction with embodiment, the utility model will be further described:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a front view of the present utility model;

Fig. 3 is a right view of the present utility model.

Five, embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, present embodiment comprises support the 8, the 1st running part, the 2nd running part, road wheel 13 and lower margin 14.Road wheel 13 symmetries are installed in both sides, support 8 lower end, and lower margin 14 is installed in parallel in the lower end of support 8, and road wheel 13 places on the ground, and lower margin 14 is stuck in the guide rail of layback charger.The 1st running part comprises wire rope A, leading block 1, angle pulley 18 and receives rope reel 19.The 2nd running part comprises wire rope B, gin wheel group, correcting pulley 9, niggerhead 12, worm decelerating machine 15, motor 22 and control system.Coupling assembling is made up of shackle 2, power biography 3 and shackle 4, and power passes 3 one ends and is fixed on the wire rope A by shackle 4, and the other end is connected on the loading frock of blade by shackle 2.After the other end of wire rope A is walked around leading block 1 and angle pulley 18, walk around the tension pulley block 11 of gin wheel group lower end again after, twist in and receive on the rope reel 19.On the axle of receipts rope reel 19 handle is arranged.The gin wheel component is fixed pulley group 7, running block 10 and the tension pulley block 11 corresponding with fixed pulley group 7, and tension pulley block 11 hangs on the travelling block base 20.Wire rope B one end is fixed on the fixed pulley base 21 of gin wheel group upper end, and the other end is walked around each pulley in fixed pulley group 7 and the running block 11 in proper order, walk around correcting pulley 9 at last after, on niggerhead 12.Niggerhead 12 is fixed on worm decelerating machine 15 output shafts, belt pulley 24 on the input shaft of worm decelerating machine 15 is connected with the belt pulley 23 of motor 22 by belt, motor 22 is by the lead connection control system, and an end of the input shaft of worm decelerating machine 15 is equipped with handle 25.Leading block 1, angle pulley 18, receipts rope reel 19 and correcting pulley 9 are fixed on the axle bed by axle, axle bed is fixed on the support 8, the pulley of the fixed pulley group 7 of gin wheel group is installed on the fixed pulley base 21 by axle, and fixed pulley base 21 is fixed on support 8 upper ends by supporting pin 26.Worm decelerating machine 15, motor 22 are fixed on the frame of support 8.Have many group mounting holes 17 on the support 8 of the axle bed of fixed guide pulley 1, the axle bed of leading block 1 can be installed in every group of mounting hole 17 according to the needs of height.Support 8 upper ends are welded with a support bar 6, and pulley 5 is installed on the support bar 6, and wire rope one end is fixed on leading block 1 axle bed, and the other end is walked around pulley 5 for puller system or with pulling use.Protection network 16 is installed around the support 8.

The installation of the axle bed of leading block also can be used crane and fork truck.

Claims

1, a kind of blade testing layback charger is characterized in that: it comprises support (8), the 1st running part, the 2nd running part and lower margin (14); Lower margin (14) is installed in parallel in the lower end of support (8); The 1st running part comprises wire rope (A), leading block (1), angle pulley (18) and receives rope reel (19); The 2nd running part comprises wire rope (B), gin wheel group, correcting pulley (9), niggerhead (12), worm decelerating machine (15), motor (22) and control system; Wire rope (A) end is fixed with coupling assembling, and it is connected on the loading frock of blade by coupling assembling; After the other end of wire rope (A) is walked around leading block (1) and angle pulley (18), walk around the tension pulley block (11) of gin wheel group lower end again after, twist in and receive on the rope reels (19), receiving on the axle of rope reels (19) has handle; The gin wheel component is fixed pulley group (7), running block (10) and the tension pulley block (11) corresponding with fixed pulley group (7), and tension pulley block (11) hangs on the travelling block base (20); Wire rope (B) end is fixed on the fixed pulley base (21) of gin wheel group upper end, and the other end is walked around each pulley in fixed pulley group (7) and the running block (11) in proper order, walk around correcting pulley (9) at last after, on niggerhead (12); Niggerhead (12) is fixed on worm decelerating machine (15) output shaft, and the belt pulley (24) on the input shaft of worm decelerating machine (15) is connected with the belt pulley (23) of motor (22) by belt; Motor (22) is by the lead connection control system, and an end of the input shaft of worm decelerating machine (15) is equipped with handle (25); Leading block (1), angle pulley (18), receipts rope reel (19) and correcting pulley (9) are fixed on the axle bed by axle, axle bed is fixed on the support (8), the pulley of the fixed pulley group (7) of gin wheel group is installed on the fixed pulley base (21) by axle, and fixed pulley base (21) is fixed on support (8) upper end; Worm decelerating machine (15), motor (22) are fixed on the frame of support (8); Have many group mounting holes (17) on the support (8) of the axle bed of fixed guide pulley (1), the axle bed of leading block (1) can be installed in every group of mounting hole (17) according to the needs of height.

2, blade testing layback charger according to claim 1 it is characterized in that: further comprising road wheel (13), and its symmetry is installed in support (8) both sides, lower end.

3, according to claim 1 or 2 described blade testing layback chargers, it is characterized in that: described coupling assembling passes (3) by shackle (2), power and shackle (4) is formed, power passes (3) one ends and is fixed on the wire rope (A) by shackle (4), and the other end is connected on the loading frock of blade by shackle (2).

4, blade testing layback charger according to claim 3, it is characterized in that: described support (8) upper end is welded with a support bar (6), pulley (5) is installed on the support bar (6), wire rope one end is fixed on leading block (1) axle bed, and the other end is walked around pulley (5) for puller system or with pulling use.

5, according to claim 1 or 2 described blade testing layback chargers, it is characterized in that: described support (8) upper end is welded with a support bar (6), pulley (5) is installed on the support bar (6), wire rope one end is fixed on leading block (1) axle bed, and the other end is walked around pulley (5) for puller system or with pulling use.

6, blade testing layback charger according to claim 4 is characterized in that: protection network (16) is installed around the described support.

7, blade testing layback charger according to claim 5 is characterized in that: protection network (16) is installed around the described support.

8, according to claim 1 or 2 described blade testing layback chargers, it is characterized in that: protection network (16) is installed around the described support.