CN215249190U

CN215249190U - Aerogenerator driftage platform maintains auxiliary fixtures

Info

Publication number: CN215249190U
Application number: CN202121272885.2U
Authority: CN
Inventors: 钟佳炜; 杜杰; 高宏飙; 陈洋洋; 吴垠峰
Original assignee: Jiangsu Marine Longyuan Wind Power Generation Co Ltd
Current assignee: Jiangsu Longyuan Offshore Wind Power Co Ltd; Jiangsu Marine Longyuan Wind Power Generation Co Ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-21
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses an aerogenerator driftage platform maintains auxiliary fixtures, the on-line screen storage device comprises a base, one side of base top is fixed with folding supporting mechanism, folding supporting mechanism's top articulates there is main davit, the other pot head of main davit is equipped with flexible davit, the upper and lower both ends of flexible davit are fixed with universal fixture and hoisting mechanism respectively, the lower extreme interval of main davit is equipped with at least three altitude mixture control card I, the most inboard be connected with the safety lock between altitude mixture control card I and the folding supporting mechanism, all the other arbitrary one be connected with the pneumatic cylinder between altitude mixture control card I and the folding supporting mechanism. The utility model discloses collect driftage calliper lift by crane change and hydraulic pressure tensile head, moment rifle etc. maintenance tool's clamping function in an organic whole, greatly promoted the work efficiency that the platform of driftage was maintained, improved stability and security, practiced thrift the cost input.

Description

Aerogenerator driftage platform maintains auxiliary fixtures

Technical Field

The utility model relates to a wind power generation technical field specifically says, relates to a aerogenerator driftage platform maintains auxiliary fixtures.

Background

In wind generators, a yaw deck is often used; the yaw platform is mainly responsible for wind alignment and cable release, and needs to be maintained and overhauled irregularly in the long-time working process. The maintenance and overhaul of the yawing platform mainly relate to the following working conditions: 1. replacing the yaw calipers; 2. maintaining the moment of clamping and tightening the bolt by yawing; 3. maintaining the moment of the connecting bolt of the yaw caliper and the main frame; 4. and maintaining the moment of the connecting bolt of the top tower and the yawing gear ring. For the moment maintenance of the bolt, a maintenance worker is generally required to maintain the lifting posture and operate by using a hydraulic stretching head and a moment gun; the replacement of the yaw calipers with the weight of more than 200kg needs to be carried out by matching with a safe hoisting device.

At present, the existing yaw platform maintenance auxiliary tool cannot replace a yaw caliper and perform torque maintenance on each bolt in a yaw platform, is difficult to adapt to different operation requirements at the same time, and has high operation difficulty and low working efficiency; simultaneously, this type of frock uses the flexibility ratio general, and generally only carries out auxiliary stay through the liquid level jar as the power supply, and stability and security are general, and the operation process risk is big, in case the pneumatic cylinder became invalid, very easily causes the emergence of incident.

The chinese patent publication No. CN109264590A discloses a foldable hydraulic crane with brake function, wherein the base is symmetrically provided with two foldable bases, a column is fixed in the middle of one side of the base close to the foldable bases, supporting rods are fixed on both sides of the column, the bottom end of the supporting rod is fixed on the outer side of the base, the top end of the column is connected with a suspension arm, the suspension arm is composed of a rotating arm and a moving arm sleeved in the rotating arm, the bottom of one side of the rotating arm is movably hinged with the top end of the column, the top end of the moving arm is provided with a lifting hook, and one side of the lower end of the column is connected with the rotating arm

Hydraulic cylinders are connected. This prior art only is connected with the pneumatic cylinder between stand and the swinging boom, and stability and security are poor, and the piston rod mounted position of pneumatic cylinder can't be adjusted, uses the flexibility general, can not solve the technical problem of moment maintenance to each bolt in the platform of yawing simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the existing yaw platform maintenance auxiliary tool provided in the background technology can not only change the yaw calipers but also carry out the torque maintenance of each bolt in the yaw platform, is difficult to adapt to different operation requirements simultaneously, has large operation difficulty and low working efficiency; simultaneously, this type of frock uses the flexibility ratio general, and generally only carries out auxiliary stay through the liquid level jar as the power supply, and stability and security are general, and the operation process risk is big, in case the pneumatic cylinder became invalid, very easily causes the technical problem of incident's emergence.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a maintenance auxiliary tool for a yaw platform of a wind driven generator comprises a base, wherein a plurality of universal casters are mounted below the base, a balancing weight is arranged above one side above the base, and a folding supporting mechanism is fixed on the other side above the base; the foldable support mechanism comprises a folding support mechanism and a foldable support mechanism, wherein the top end of the folding support mechanism is hinged with a main suspension arm, the other end of the main suspension arm is sleeved with a telescopic suspension arm, the telescopic suspension arm is an electric telescopic suspension arm and is of an inverted L-shaped structure, the telescopic suspension arm comprises a lifting support arm and a clamping support arm, one end of the lifting support arm is connected with the main suspension arm, the other end of the lifting support arm extends outwards and downwards to form the clamping support arm, a chain sling is fixed at the lower end of one side, close to the clamping support arm, of the lifting support arm, and a central mounting hole is formed in the clamping support arm; the universal clamping mechanism is used for clamping a hydraulic stretching head and a torque gun to realize torque maintenance of each bolt of a yaw platform, and comprises a universal ball head, wherein the universal ball head comprises a universal joint, a working retainer and a mounting frame which are sequentially connected from top to bottom, the universal joint consists of two hemispherical shells which are vertically and symmetrically and fixedly connected, a position locking rod is connected to the side surface of the working retainer, a mounting bolt matched with a central mounting hole is arranged in the mounting frame in a penetrating manner, and the mounting bolt is coaxially connected with the working retainer; the lower extreme interval of main davit is equipped with at least three altitude mixture control card I, the most inboard be connected with the safety lock between altitude mixture control card I and the folding supporting mechanism, the safety lock can play new supporting role, all the other arbitrary one to main davit and flexible davit under the condition that the pneumatic cylinder became invalid be connected with manual formula's pneumatic cylinder between altitude mixture control card I and the folding supporting mechanism, make the altitude mixture control of main davit and corresponding flexible davit more nimble and adjustment range wider, finally make lift by crane process and clamping process more stable and convenient laborsaving.

Wherein, folding supporting mechanism includes oblique stand and support frame, the support frame symmetry is fixed in the inboard at the base at the left and right sides of oblique stand and its lower extreme, be connected with the support post between the outside of base and oblique stand, the hand push handle is installed on the outside top of oblique stand, the hand push handle is located the top of support post, the inboard from the top down of oblique stand is equipped with the altitude mixture control card II that is used for connecting the safety lock in proper order, is used for connecting the altitude mixture control card III of the cylinder body of pneumatic cylinder.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in utilize the universal fixture of upper end to the tensile head of hydraulic pressure and the centre gripping of moment rifle to realize the moment maintenance of each bolt of driftage platform, the lifting mechanism that utilizes the lower extreme to cooperate promotes the change to driftage calliper, when making the field maintenance personnel not need very hard just can move the driftage calliper up and down and change, changed the field maintenance personnel and lasted the operating condition of maintenance tools such as the tensile head of hydraulic pressure and moment rifle, greatly promoted the work efficiency that the driftage platform was maintained, practiced thrift the input of maintenance cost;

2. the utility model discloses the setting of safety lock between oblique stand and the main davit in can play new supporting role to main davit and telescopic boom under the condition that the pneumatic cylinder became invalid, avoided maintenance tool such as driftage calliper and hydraulic pressure drawing head and moment rifle to drop and injure the people by a crashing object to the emergence of incident that leads to has reduced the risk of operation process, has greatly promoted operation security and stability, has prolonged the life of whole frock simultaneously;

3. the arrangement of the height adjusting clamps I facilitates the adjustment of the connecting position of the piston rod of the hydraulic cylinder, so that the height adjustment of the main suspension arm and the corresponding telescopic suspension arm is more flexible and wider in adjusting range, and finally the lifting process and the clamping process are more stable, convenient and labor-saving;

4. the universal joint composed of two hemispherical shells which are fixedly connected in an up-and-down symmetrical manner and the position locking rod in the universal ball head are convenient for clamping maintenance tools such as a hydraulic stretching head, a torque gun and the like and adjusting and locking the position of the maintenance tools; meanwhile, the universal clamping mechanism and the telescopic boom are more stably and firmly installed by matching with the installation bolt and the installation frame;

5. the telescopic suspension arm in the utility model consists of a lifting support arm and a clamping support arm, and the arrangement of the inverted L-shaped structure facilitates the respective installation of a chain lifting appliance and a universal ball head;

6. the hydraulic cylinder in the utility model is a manual hydraulic cylinder and is matched with the universal caster, thereby further improving the convenience of the operation and the movement of the whole tool and indirectly improving the working efficiency;

7. the utility model discloses a base only needs can partially tear open through a set of connecting bolt of self installation and fold to hand push handle, and hand push handle's setting has guaranteed the stability after the base is folding, and whole frock can be folded after the pneumatic cylinder pressure release simultaneously, is applicable to the restricted operation environment in driftage platform space.

Drawings

FIG. 1 is a schematic view of the working principle of the present invention;

fig. 2 is a schematic folding view of the present invention;

FIG. 3 is a schematic structural view of the universal ball head of the present invention;

in the figure: 1. the base, 101, the base crossbeam, 102, the base main support, 103, folding landing leg, 104, connecting bolt, 2, oblique stand, 3, the support post, 4, the pneumatic cylinder, 5, the main davit, 6, universal ball head, 601, the universal joint, 602, the work holder, 603, the mounting bracket, 604, the position locking lever, 605, construction bolt, 7, the safety lock, 8, flexible davit, 801, central mounting hole, 9, the hand push handle, 10, the support frame, 11, universal caster, 12, altitude mixture control card I, 13, altitude mixture control card II, 14, altitude mixture control card III, 15, the chain hoist, 16, the balancing weight.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, an auxiliary maintenance tool for a yaw platform of a wind driven generator is shown, which includes a base 1, 6 universal casters 11 are distributed below the base 1, a counterweight 16 is arranged on one side above the base 1, and a folding support mechanism is fixed on the other side above the base 1; the base 1 comprises a base cross beam 101, a base main support 102 and folding legs 103, the folding support mechanism comprises an inclined upright post 2, a support upright post 3 and support frames 10, the folding legs 103 are bilaterally and symmetrically connected to the base main support 102 through connecting bolts 104, a balancing weight 16 is positioned at the front ends of the two folding legs 103, the base cross beam 101 is installed on one side, away from the folding legs 103, of the base main support 102, the inclined upright post 2 is fixed above the middle of one side, close to the folding legs 103, of the base main support 102, a hand-push handle 9 is fixed at the top end of the outer side of the inclined upright post 2, the support upright post 3 is connected between the outer side of the inclined upright post 2 and the middle of the base cross beam 101, the support upright post 3 is positioned below the hand-push handle 9, the support frames 10 are symmetrically arranged on the left side and the right side of the inclined upright post 2, and the lower ends of the support frames 10 are all fixed on the inner side of the base main support 102; meanwhile, the top end of the inclined upright post 2 is hinged with a main suspension arm 5, the lower end of the main suspension arm is provided with three height adjusting clamps I at intervals, a safety lock 7 is connected between the innermost height adjusting clamp I12 and the inclined upright post 2, a manual hydraulic cylinder 4 is connected between the second height adjusting clamp I12 and the inclined upright post 2, a piston rod of the hydraulic cylinder 4 is fixedly connected with the second height adjusting clamp I12, and a height adjusting clamp II 13 used for connecting the safety lock 7 and a height adjusting clamp III 14 used for connecting a cylinder body of the hydraulic cylinder 4 are sequentially arranged on the inner side of the inclined upright post 2 from top to bottom; the other pot head of main davit 5 is equipped with the flexible davit 8 that is the type of falling L structure, flexible davit 8 is electronic flexible davit, flexible davit 8 comprises lifting by crane support arm and centre gripping support arm, the one end of lifting by crane the support arm is connected with main davit 5, the other end of lifting by crane the support arm extends to outside below and forms the centre gripping support arm, the lower extreme that lifts by crane the support arm and is close to centre gripping support arm one side is fixed with chain hoist 15, set up the installation center mounting hole 801 that is used for universal bulb 6 on the centre gripping support arm.

The universal ball head 6 is fixed at the upper end of the clamping support arm and comprises a universal joint 601, a work retainer 602 and a mounting rack 603 which are sequentially connected from top to bottom, the universal joint 601 is composed of two hemispherical shells which are fixedly connected in an up-down symmetrical mode, the side face of the work retainer 602 is connected with a position locking rod 604, a mounting bolt 605 matched with the central mounting hole 801 penetrates through the mounting rack 603, and the mounting bolt 605 is coaxially connected with the work retainer 602.

When the universal maintenance device works, firstly, the main suspension arm 5 is adjusted to a proper working position by utilizing the pressing of the hydraulic cylinder 4, then the telescopic suspension arm 8 is adjusted and fixed, the safety lock 7 is connected between the inclined upright post 2 and the main suspension arm 5, then a torque gun serving as a maintenance tool penetrates through the universal ball head 6, and the universal ball head 6 plays a supporting role and is used for maintaining torque of a yaw caliper and a fastening bolt; then opening a universal joint 601 of the universal ball head 6, clamping and fixing a hydraulic stretching head serving as a maintenance tool, and maintaining the torque of the connecting bolt of the yaw caliper and the main frame and the torque of the connecting bolt of the top tower and the yaw gear ring; when the yawing calipers are replaced, the chain lifting appliance 15 is used for fixing the lifting hook of the yawing calipers to be disassembled, the height is continuously lifted until the chain lifting appliance 15 is stressed, the yawing calipers are disassembled, after the yawing calipers are disassembled, the safety lock 7 is unlocked from the main lifting arm 5, the hydraulic cylinder 4 is decompressed, the yawing calipers are put down, and the process of installing new yawing calipers is opposite to the process of disassembling the yawing calipers. In addition, after the maintenance is finished, the folding supporting legs 103 can detach a group of connecting bolts 104 and fold the connecting bolts to the hand-push handle 9, and then the hydraulic cylinder 4 is decompressed, so that the whole tool can be folded.

Claims

1. The utility model provides an aerogenerator driftage platform maintains auxiliary fixtures, includes the base, one side of base top is fixed with folding supporting mechanism, folding supporting mechanism's top articulates there is main davit, the other pot head of main davit is equipped with flexible davit, its characterized in that, the upper and lower both ends of flexible davit are fixed with universal fixture and hoisting mechanism respectively, the lower extreme interval of main davit is equipped with at least three altitude mixture control card I, the most inboard be connected with the safety lock between altitude mixture control card I and the folding supporting mechanism, all the other arbitrary one be connected with the pneumatic cylinder between altitude mixture control card I and the folding supporting mechanism.

2. The maintenance auxiliary tool for the yawing platform of the wind driven generator according to claim 1, wherein the hoisting mechanism comprises a chain hanger, the universal clamping mechanism comprises a universal ball head, the universal ball head comprises a universal joint, a working holder and a mounting frame which are sequentially connected from top to bottom, the universal joint comprises two hemispherical shells which are fixedly connected in an up-down symmetrical manner, a position locking rod is connected to the side surface of the working holder, a mounting bolt for fixedly connecting the telescopic boom penetrates through the mounting frame, and the mounting bolt is coaxially connected with the working holder.

3. The maintenance auxiliary tool for the yawing platform of the wind driven generator according to claim 2, wherein the telescopic boom is an electric telescopic boom in an inverted L-shaped structure, the telescopic boom comprises a lifting support arm and a clamping support arm, one end of the lifting support arm is connected with the main boom, the other end of the lifting support arm extends outwards and downwards to form the clamping support arm, a chain sling is fixed at the lower end of one side of the lifting support arm close to the clamping support arm, and a central mounting hole matched with a mounting bolt is formed in the clamping support arm.

4. The maintenance auxiliary tool for the yawing platform of the wind driven generator according to claim 1, wherein the folding supporting mechanism comprises an inclined upright post and supporting frames respectively fixed on the left side and the right side of the inclined upright post, the lower ends of the supporting frames are symmetrically fixed on the inner side of the base, a supporting upright post is connected between the outer side of the inclined upright post and the base, and a height adjusting clamp II for connecting a safety lock and a height adjusting clamp III for connecting a hydraulic cylinder are sequentially arranged on the inner side of the inclined upright post from top to bottom.

5. The maintenance auxiliary tool for the yawing platform of the wind driven generator according to claim 4, wherein a hand-push handle is fixed to the top end of the outer side of the inclined upright post and is positioned above the supporting upright post.

6. The maintenance auxiliary tool for the yawing platform of the wind driven generator according to claim 4, wherein the hydraulic cylinder is a manual hydraulic cylinder, a piston rod of the hydraulic cylinder is fixedly connected with the height adjusting clamp I, and a cylinder body of the hydraulic cylinder is fixedly connected with the height adjusting clamp III.

7. The maintenance auxiliary tool for the yawing platform of the wind driven generator according to claim 1, wherein a balancing weight is arranged above the other side above the base.

8. The maintenance auxiliary tool for the yaw platform of the wind driven generator according to claim 1, wherein a plurality of universal casters are mounted below the base.