CN218491285U - Wind generating set becomes oar gear box hoist - Google Patents

Abstract

The utility model provides a wind generating set variable pitch gear box lifting appliance, which comprises a C-shaped lifting beam, a lifting frame, universal rotary lifting ring screws and a step pressing plate; the hanging bracket is mounted on the mounting flange surface of the variable pitch gearbox; the universal rotating lifting ring screw is arranged on the hanging bracket and is positioned right above the center of gravity of the variable pitch gearbox in the mounting state, so that a reasonable hoisting point is provided for hoisting the variable pitch gearbox; the step pressing plates are uniformly distributed along the circumferential direction of the hanging bracket, and the hanging bracket with the universal rotary lifting ring screws and the variable pitch gearbox are axially positioned; the difficulty that the transverse distance between the mounting position of the variable pitch gearbox and the hoisting hole is large and the space in the height direction is small is overcome, the hoisting position of the variable pitch gearbox is not required to be corrected by manual assistance to complete mounting, and the labor intensity is reduced.

Description

Wind generating set becomes oar gear box hoist

Technical Field

The utility model belongs to the technical field of the mechanical skill and specifically relates to a wind generating set becomes oar gear box hoist is related to.

Background

The wind generating set comprises a wind wheel, a cabin, a tower barrel and other components, wherein the wind wheel is divided into a blade, a flow guide cover, a hub assembly and other parts, and a variable pitch gear box is one of important components forming the hub assembly;

at present, the installation of the variable pitch gearbox adopts a hoisting mode, the specific hoisting process mainly adopts a circular hoisting belt to block a waist to bind the variable pitch gearbox, and then a C-shaped hoisting beam is used for hoisting, so that the following defects are found:

1. when the variable-pitch gear box of the wind generating set is installed, the gear end is required to be inclined upwards by a certain angle and is positioned below the top surface of the inner cavity of the hub, the transverse distance between the hoisting hole and the installation surface is large, the space in the height direction is small, the installation requirement of a circular hoisting belt cannot be met, and an ideal hoisting point does not exist, so that the variable-pitch gear box cannot be accurately hoisted in place, the installation position and the angle are not ideal, the variable-pitch gear box needs to be pushed to the installation surface of the variable-pitch gear box of the hub for installation by means of manual intervention, and the labor intensity is high;

2. the variable pitch gear needs to be meshed with a variable pitch bearing which is installed on the hub in advance to realize variable pitch of the blade, the variable pitch gear and an inner ring of the variable pitch bearing form an inner gear pair, the variable pitch gear and the variable pitch gear box have a certain eccentric distance, and the meshing backlash is realized through circumferential rotation of the variable pitch gear, but in the adjusting process, the outer cylindrical surface of the variable pitch gear box can generate abrasion of different degrees on the surface of the circular hoisting belt.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind generating set becomes oar gear box hoist to solve the problem that exists among the prior art.

In order to solve the technical problem, the utility model provides a wind generating set variable pitch gearbox lifting appliance, which comprises a C-shaped lifting beam, a lifting frame, universal rotary lifting ring screws, a step pressing plate and the like;

a hanging bracket is arranged on the lower side of the C-shaped hanging beam;

the hanging bracket is arranged on the mounting flange surface of the variable pitch gearbox through the spigot;

the universal rotating lifting ring screw is arranged on the hanging bracket and is positioned right above the center of gravity of the variable pitch gearbox in the mounting state, so that a reasonable hoisting point is provided for hoisting the variable pitch gearbox;

the step pressing plates are uniformly distributed along the circumferential direction of the hanging bracket, and the hanging bracket with the universal rotary lifting ring screws and the variable pitch gearbox are axially positioned;

furthermore, the step pressing plate is mounted to a mounting flange of the variable pitch gearbox through a bolt, and the variable pitch gearbox can rotate around the axis of the variable pitch gearbox in the hanging bracket through a gap reserved between the step pressing plate and the hanging bracket in the axial direction.

Furthermore, a lifting ring is further arranged on the universal rotary lifting ring screw, and a connecting line of the lifting ring and the center of gravity of the variable pitch gearbox is perpendicular to the ground.

Furthermore, the C-shaped hanging beam is hung on a hanging ring of the universal rotary hanging ring screw through a hanging beam hook head at the lower end.

And the counterweight block is arranged at the upper end of the C-shaped hanging beam through an inner hexagonal socket head cap screw to keep the balance of the hanging tool.

Further, the lifting device comprises a shackle which is adjustably arranged on the C-shaped hanging beam.

Preferably, the C-shaped hanging beam is further provided with an adjusting hole, and the mounting position of the shackle is adjusted according to the deviation condition of the actual gravity center and the theoretical gravity center of the variable pitch gearbox, so that the hanging point and the gravity center of the hung object are on the same vertical line.

Furthermore, the lifting device also comprises a circular lifting belt, wherein the circular lifting belt is arranged on the shackle and is used for being connected with a lifting hook of the crane.

Further, the hanging bracket is provided with an inner flange hole.

Furthermore, the mounting flange of the variable pitch gearbox and the flange hole in the hanging bracket form a spigot matching structure, so that a positioning effect is achieved.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

the utility model provides a pair of wind generating set becomes oar gear box hoist, through the ladder clamp plate of circumference equipartition, with the gallows with become the oar gear box and assemble together, realize axial positioning, for becoming the oar gear box and providing the special hoisting point of an ideal. In addition, the universal rotary lifting ring screw with small height is arranged on the hanger and at a position right above the gravity center of the variable pitch gearbox in the mounting state of the variable pitch gearbox, so that the position of the hanger relative to the hanger and the gravity center of the variable pitch gearbox reaches an ideal position and an inclination angle during lifting, the C-shaped hanging beam and the universal rotary lifting ring screw are used for lifting, the difficulties that the distance between the mounting position of the variable pitch gearbox and a lifting hole is large in the horizontal direction and the space is small in the vertical direction are overcome, the lifting position is corrected without manual assistance, the mounting is completed, and the labor intensity is reduced;

the utility model provides a wind generating set becomes oar gear box hoist, assemble the gallows to the mounting flange face of the change oar gear box through the ladder clamp plate, clearance fit between ladder clamp plate and the gallows guarantees that the change oar gear box can rotate around its axis to the adjustment of the meshing backlash of the change oar gear has created the condition, compared with the mode that prior art adopted the waist to bind, when this application adjusts the backlash, change oar gear box and gallows and can rotate relatively, the hoist can not produce wearing and tearing, has prolonged the life of hoist;

the utility model provides a wind generating set becomes oar gear box hoist, through the axial position of the mounting hole of the universal rotatory eyebolt relative to the change oar gear box on the reasonable definite gallows, make the line of mounting hole and change oar gear box focus perpendicular to ground, make change oar gear box gear end reach the target state of the suitable angle of tilt up;

the utility model provides a pair of wind generating set becomes oar gear box hoist is provided with tang cooperation structure between gallows and the mounting flange face that becomes the oar gear box, plays the spacing effect of axial to the gallows.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 isbase:Sub>A schematic view of rotation A-A shown in FIG. 1;

FIG. 3 is a schematic view of the rotation of B-B shown in FIG. 1;

fig. 4 is a side view of the present invention;

FIG. 5 is a partial schematic view of the C-shaped hanging beam of the present invention with a counterweight;

fig. 6 is a schematic diagram of a state of the hoisting target of the present invention.

Reference numerals:

1-inner hexagonal socket head screw, 2-balancing weight, 3-circular hoisting belt, 4-shackle, 5-C-shaped hoisting beam, 6-universal rotary hoisting ring screw, 7-step pressing plate, 8-bolt, 9-hoisting frame, 10-gear box, 11-hoisting beam hook head and 12-hoisting ring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The present invention will be further explained with reference to specific embodiments.

As shown in fig. 1 to 4, the lifting appliance for the pitch gearbox of the wind generating set provided by the embodiment comprises a C-shaped lifting beam 5, a lifting frame 9, a universal rotary lifting bolt 6 and a step pressing plate 7;

a hanging bracket 9 is arranged at the lower side of the C-shaped hanging beam 5;

the hanging bracket 9 is arranged on the mounting flange surface of the variable pitch gearbox 10;

the universal rotary lifting ring screw 6 is arranged on the lifting frame and is positioned right above the center of gravity of the variable pitch gearbox 10 in the mounting state, so that a reasonable hoisting point is provided for hoisting the variable pitch gearbox 10;

the step pressing plates 7 are uniformly distributed along the circumferential direction of the hanger 9, and the hanger 9 with the universal rotary lifting ring screws 6 and the variable pitch gearbox 10 are axially positioned;

further, a lifting ring 12 is further arranged on the universal rotating lifting ring screw 6, a connecting line of the lifting ring 12 and the center of gravity of the variable pitch gearbox 10 is perpendicular to the ground, and the target state is shown in fig. 6.

Further, the stepped pressing plate 7 is assembled to a flange of the variable pitch gearbox 10 through a bolt 8, and a gap is axially reserved between the stepped pressing plate 7 and the hanger 9, so that the variable pitch gearbox 10 can rotate around the axis of the variable pitch gearbox in the hanger.

Further, the C-shaped suspension beam 5 is suspended from a suspension ring 12 of the universal swivel suspension bolt 6 via a suspension beam hook 11 at the lower end.

Further, still include balancing weight 2, balancing weight 2 installs the upper end at C shape hanging beam 5 through hexagon socket head cap screw 1 for keep the balance of hoist.

Furthermore, the lifting device also comprises a shackle which is arranged on the C-shaped lifting beam 5.

Preferably, the C-shaped hanging beam 5 is further provided with an adjusting hole, and the mounting position of the shackle is adjusted according to the deviation condition of the actual gravity center and the theoretical gravity center of the variable pitch gearbox, so that the hanging point and the gravity center of the hung object are located on the same vertical line.

Furthermore, the lifting device also comprises a circular lifting belt 3, wherein the circular lifting belt 3 is arranged on the shackle and is used for being connected with a crane hook.

According to the lifting appliance for the pitch-variable gearbox of the wind generating set, the lifting frame 9 is provided with the inner flange hole.

Furthermore, a flange mounting flange of the variable pitch gearbox 10 and a flange hole in the hanging bracket form a spigot matching structure, and a positioning effect is achieved.

The working principle is as follows: mounting a hanger 9 on a mounting flange surface of a variable pitch gearbox 10, enabling a through hole in a step pressure plate 7 to correspond to a threaded hole in the mounting flange surface, and assembling the hanger 9 on the flange surface through a bolt 8; universal rotatory eyebolt 6 on gallows 9 is connected with C shape hanging beam 5, and C shape hanging beam 5 upper end is connected through setting up balancing weight 2 and guaranteeing the balance of whole hoist, is connected through circular hoist and mount area 3 between shackle 4 and the crane lifting hook, through starting the crane, drives the hoist and removes, will become the installation of oar gear box 10 to wheel hub in.

The lifting frame 9 and the variable pitch gearbox 10 are assembled together through the step pressing plates 7 which are uniformly distributed in the circumferential direction, axial positioning is achieved, an ideal special lifting point is provided for the variable pitch gearbox 10, meanwhile, the universal rotary lifting bolt 6 with a small height is arranged at a position right above the center of gravity when the variable pitch gearbox 10 is in a mounting state on the lifting frame, and a lifting ring 12 on the universal rotary lifting bolt 6 and a connection line of the center of gravity of the variable pitch gearbox 10 are located on the same vertical line. Moreover, during installation, the gear end is required to be inclined upwards by a certain angle, for example, 5 °, and the universal rotary lifting bolt 6 is arranged at a proper position, so that the gear end is reasonable in position relative to the hanger 9 and the hanger 9 relative to the center of gravity of the variable pitch gearbox 10, and the purpose is to achieve an ideal position and a proper inclination angle (as shown in a target state in fig. 6, an angle alpha line in the figure is a vertical line during hoisting) during hoisting of the variable pitch gearbox 10, so that the installation is more convenient.

Finally, the step pressing plate 7 is used for assembling the hanging bracket 9 on the variable pitch gearbox 10, and the gap fit between the pressing plate 7 and the hanging bracket 9 ensures that the variable pitch gearbox 10 can rotate around the axis of the variable pitch gearbox, so that conditions are created for adjusting the meshing backlash of the variable pitch gear pair, and the adjustment of the meshing backlash is facilitated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims (9)

1. A wind generating set variable pitch gearbox lifting appliance is characterized by comprising a C-shaped lifting beam, a lifting frame, universal rotary lifting ring screws and a step pressing plate;

a hanging bracket is arranged on the lower side of the C-shaped hanging beam;

the hanging bracket is mounted on a mounting flange surface of the variable pitch gear box;

the C-shaped hanging beam is arranged on the upper side of the hanging bracket;

the universal rotary lifting ring screw is arranged on the lifting frame and is positioned right above the center of gravity of the variable pitch gearbox in the mounting state, so that a reasonable lifting point is provided for lifting the variable pitch gearbox;

the step pressing plates are uniformly distributed along the circular direction of the hanging bracket, and the hanging bracket with the universal rotary lifting bolt and the variable pitch gearbox are axially positioned.

2. The wind generating set pitch gearbox lifting appliance according to claim 1, wherein the universal rotary lifting ring screw is further provided with a lifting ring, and a connecting line of the lifting ring and the center of gravity of the pitch gearbox is perpendicular to the ground.

3. The wind generating set pitch gearbox lifting appliance according to claim 1, wherein the step pressing plate is assembled to a mounting flange of the pitch gearbox through bolts, and a gap reserved in the axial direction of the step pressing plate and the lifting frame ensures that the pitch gearbox can rotate around the axis of the lifting frame.

4. The wind generating set pitch gearbox lifting appliance according to claim 1, wherein an inner flange hole is formed in the inner side of the lifting frame.

5. The wind generating set pitch gearbox lifting appliance according to claim 4, wherein the pitch gearbox mounting flange and the lifting frame inner flange hole form a spigot matching structure to play a positioning role.

6. The wind generating set pitch gearbox hanger of claim 1, wherein the C-shaped hanging beam is hung on a hanging ring of the universal rotary hanging ring screw through a hanging beam hook head at the lower end.

7. The wind generating set pitch gearbox lifting appliance according to claim 1, further comprising a weight block, wherein the weight block is mounted at the upper end of the C-shaped lifting beam through an inner hexagonal socket head cap screw so as to keep balance of the lifting appliance.

8. The wind generating set pitch gearbox hanger of claim 1, further comprising a shackle disposed on the C-shaped lifting beam.

9. The wind generating set variable pitch gearbox lifting appliance according to claim 1, wherein the C-shaped lifting beam is further provided with an adjusting hole, and the mounting position of the shackle is adjusted according to the deviation condition of the actual gravity center and the theoretical gravity center of the variable pitch gearbox, so that the lifting point and the gravity center of the lifted object are on the same vertical line.

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