CN216764256U

CN216764256U - Wind power tower cylinder girth welding lift platform

Info

Publication number: CN216764256U
Application number: CN202220522720.4U
Authority: CN
Inventors: 朱玉瑞; 徐超; 蔡春辉; 陈文渊; 谷燕楠
Original assignee: Huaneng Weining Wind Power Co ltd
Current assignee: Huaneng Weining Wind Power Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-06-17
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses a wind power tower cylinder girth welding lifting platform which comprises a portal vertical frame, a bottom sliding beam fixed at the bottom of the portal vertical frame, a top sliding beam fixed at the top of the bottom of the portal vertical frame and a lifting welding table connected to one side of the portal vertical frame in a sliding mode, wherein a lifting device used for driving the lifting welding table to move up and down along the portal vertical frame is arranged on the top sliding beam, limiting guide mechanisms in adaptive connection with guide rails on a workshop are respectively arranged on end columns on the left side and the right side of the top of the portal vertical frame, a horizontal driving device in adaptive connection with a workshop ground rail is arranged on the bottom sliding beam, and a crawling ladder is arranged on the left side of the portal vertical frame. The gantry welding platform is composed of the gantry vertical frame with the single-side structure and the lifting welding table, has the advantage of light structure, can be integrally moved along the extension direction of the drum set of the wind power tower drum by being matched with the bottom sliding beam and the top sliding beam, and has more flexible operability and reduced equipment cost compared with the conventional gantry welding platform.

Description

Wind power tower cylinder girth welding lift platform

Technical Field

The utility model relates to the technical field of wind power tower cylinder processing, in particular to a lifting platform for girth welding of a wind power tower cylinder.

Background

Wind power generation equipment is a power device which converts wind energy into mechanical power and is also called a windmill. The tower is higher and higher along with the increase of the unit power of the existing wind power generation equipment, the height of the tower of the wind power generation unit with a large horizontal shaft exceeds one hundred meters, a generator, a hydraulic system and a heat and cold exchange system are all placed in a cabin and supported by the tower, and the cabin is arranged on the top of the tower, so that the requirement on the reliability of each part is extremely high. The wind power tower barrel foundation ring is an indispensable important part of a wind power tower, the weight of the foundation ring is from several tons to tens of tons according to different power settings of a generator, and the foundation ring is a relatively heavy steel structural member, so that pairing, welding and displacement of the foundation ring body are difficult. The girth welding quality of the wind power tower is one of the key factors of the quality of the whole wind power tower. Because the working environment of the wind power tower cylinder is severe, if the welding quality is not over-critical, fatigue caused by long-time work can cause serious accidents such as tower falling and the like. Therefore, girth welding of wind towers is particularly critical. The existing wind power tower cylinder girth welding platform mostly adopts a gantry type welding platform, and the platform is heavy in structure, inconvenient to move and not flexible enough to use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a lift platform for girth welding of a wind power tower.

The technical scheme adopted by the utility model for realizing the technical effects is as follows:

the utility model provides a wind power tower cylinder girth welding lift platform, includes the gate-type grudging post, fixes the bottom sliding beam of gate-type grudging post bottom, fix the top sliding beam at the top of gate-type grudging post bottom to and sliding connection are in the lift welding bench of gate-type grudging post one side, be equipped with on the sliding beam of top and be used for the drive the lift welding bench is followed the hoisting device that the gate-type grudging post reciprocated, be equipped with respectively on the top left and right sides end post of gate-type grudging post with guide rail adapter coupling in the workshop spacing guiding mechanism, be equipped with on the sliding beam of bottom with workshop ground rail adapter coupling's horizontal drive device, the left side of gate-type grudging post is equipped with the cat ladder.

Preferably, in foretell wind power tower cylinder girth welding lift platform, the lift welding bench includes main frame platform and connects the distolateral extension frame platform of main frame platform, the left and right sides of main frame platform is equipped with the guardrail, the rear end left and right sides of main frame platform is equipped with the spacing arm of level respectively, the terminal inboard of the spacing arm of level is equipped with interior restraint gyro wheel, interior restraint gyro wheel with the inboard roll butt of the vertical gatepost of portal frame, the bottom left and right sides of main frame platform is equipped with vertical spacing arm, the lower extreme inboard of vertical spacing arm is equipped with outer restraint gyro wheel, outer restraint gyro wheel with the outside roll butt of the vertical gatepost of portal frame.

Preferably, in foretell wind power tower cylinder girth welding lift platform, hoisting device is including fixing the promotion motor in the middle of the top smooth beam, the left and right sides of top smooth beam is fixed with relative left sprocket shaft seat and the right sprocket shaft seat that sets up respectively, be equipped with left sprocket shaft on the left sprocket shaft seat, be equipped with the right sprocket shaft on the right sprocket shaft seat, there is synchronous drive wheel through the coupling joint between the looks remote site of left sprocket shaft and right sprocket shaft, synchronous drive wheel with the action wheel transmission of promotion motor is connected, be equipped with in the left sprocket shaft seat and fix the epaxial left sprocket of left sprocket, be equipped with in the right sprocket shaft seat and fix the epaxial right sprocket of right sprocket, left sprocket and right sprocket respectively through drive chain with lift welding platform's left and right both ends are connected.

Preferably, in the wind tower cylinder girth welding lifting platform, the limiting and guiding mechanism comprises a front limiting and guiding wheel and a rear limiting and guiding wheel which are arranged in front and at back, and an adaptive space for adaptive connection of the guide rail on the workshop is formed between the front limiting and guiding wheel and the rear limiting and guiding wheel.

Preferably, in foretell wind power tower cylinder girth welding lift platform, horizontal drive device is including fixing drive wheel and servo motor on bottom skid beam right side is distolateral and fix the driven wheel on bottom skid beam left side, the shaft inner of drive wheel is fixed with driven sprocket, be fixed with drive sprocket on servo motor's the motor shaft, driven sprocket through drive chain with drive sprocket transmission is connected, the drive wheel with driven wheel respectively with workshop ground rail adaptation connection.

Preferably, in the wind power tower girth welding lifting platform, a cross-shaped reinforcing connecting piece is arranged in a frame of the portal vertical frame.

Preferably, in the wind power tower cylinder girth welding lifting platform, a motor fixing seat is arranged in the middle of the top sliding beam, and the lifting motor is fixed on the motor fixing seat.

The utility model has the beneficial effects that: the lift platform for girth welding of the wind power tower cylinder is composed of the door type vertical frame and the lift welding table which are of single-side structures, has the advantage of light structure, and can be integrally moved along the extension direction of the cylinder group of the wind power tower cylinder by matching with the bottom sliding beam and the top sliding beam.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is an overall view of the portal frame, bottom sliding beam and top sliding beam of the present invention;

FIG. 4 is a perspective view of the lift weld station of the present invention;

fig. 5 is a structural view of the lifting device of the present invention.

Detailed Description

For a further understanding of the utility model, reference is made to the following description taken in conjunction with the accompanying drawings and specific examples, in which:

in the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, an embodiment of the present invention provides a lift platform for girth welding of a wind power tower, which includes a portal frame 1, a bottom sliding beam 2 fixed at the bottom of the portal frame 1, a top sliding beam 3 fixed at the top of the bottom of the portal frame 1, and a lift welding table 4 slidably connected to one side of the portal frame 1. Wherein, be equipped with on this top sliding beam 3 and be used for driving lift welding bench 4 along portal frame 1 hoisting device 5 who reciprocates, can promote and hover lift welding bench 4 at different heights through hoisting device 5, provide different operating height positions for the welding. In order to ensure that the portal vertical frame 1 has a flexible linear movement function, the end posts on the left side and the right side of the top of the portal vertical frame 1 are respectively provided with a limiting guide mechanism 6 which is connected with a guide rail (not shown in the figure) on a workshop in an adaptive manner, the guide rail on the workshop is matched with the limiting guide mechanism 6, on one hand, the guide is provided for the linear movement of the portal vertical frame 1, on the other hand, the limiting constraint is carried out on the portal vertical frame 1, and the portal vertical frame 1 is prevented from tilting. For the convenience of the door type vertical frame 1 to move along the extension direction of the cylinder group of the wind power tower cylinder, a horizontal driving device 7 which is connected with a workshop ground rail (not shown in the figure) in an adaptive mode is arranged on the bottom sliding beam 2, wherein the workshop upper guide rail and the workshop ground rail coincide on a vertical projection, the workshop upper guide rail is limited in a limiting guide mechanism 6 through sliding clamping, and the workshop ground rail is limited in the bottom sliding beam 2 through sliding clamping, so that the door type vertical frame 1 keeps a posture which is perpendicular to the workshop ground. In order to facilitate the maintenance of the lifting device 5 on the top sliding beam 3, as shown in fig. 1, a ladder 8 is arranged on the left side of the portal frame 1, and guard rails are arranged on both sides of the ladder 8.

Further, in a preferred embodiment of the present invention, as shown in fig. 2 and 4, the elevation welding stage 4 includes a main stage 41 and an extension stage 42 connected to an outer end side of the main stage 41. The main frame stage 41 provides a main supporting function for a welding robot or a welding operator, and the extension frame stage 42 provides a certain extension space for the main frame stage 41. The main frame 41 has guard rails 43 on both left and right sides. Specifically, as shown in fig. 4, horizontal limit arms 44 are provided on the left and right sides of the rear end of the main frame 41, respectively, and an inner restraint roller 45 is provided inside the end of the horizontal limit arm 44, and the inner restraint roller 45 is in rolling contact with the inside of the vertical door post of the door stile 1. The vertical limiting arms 46 are arranged on the left side and the right side of the bottom of the main frame 41, the outer limiting rollers 47 are arranged on the inner sides of the lower ends of the vertical limiting arms 46, and the outer limiting rollers 47 are in rolling contact with the outer sides of the vertical doorposts of the door type vertical frame 1. When lifting welding bench 4 reciprocated along the vertical gatepost of portal grudging post 1, the horizontal spacing arm 44 and the interior restraint gyro wheel 45 of the left and right sides provide the holding power for whole lifting welding bench 4, make lifting welding bench 4 be restricted and remove in the vertical direction, avoid it to heel about and remove, simultaneously, the vertical spacing arm 46 and the exterior restraint gyro wheel 47 of the left and right sides provide the holding power for whole lifting welding bench 4, the plane that makes lifting welding bench 4 place is perpendicular with the plane that portal grudging post 1 place all the time, avoid it to decline. Meanwhile, the inner constraint roller 45 and the outer constraint roller 47 are in rolling butt joint with the vertical doorpost of the door type vertical frame 1, so that the flexibility of the lifting welding table 4 in up-down adjustment is improved, and the friction resistance is reduced.

Further, in the preferred embodiment of the present invention, as shown in fig. 5, the lifting device 5 includes a lifting motor 51 fixed in the middle of the top sliding beam 3, and a left sprocket shaft seat 52 and a right sprocket shaft seat 53 oppositely arranged are respectively fixed on the left and right sides of the top sliding beam 3, wherein the left sprocket shaft seat 52 is provided with a left sprocket shaft 54, and the right sprocket shaft seat 53 is provided with a right sprocket shaft 55. Specifically, as shown in fig. 5, a synchronous transmission wheel 56 is coupled between opposite ends of the left sprocket shaft 54 and the right sprocket shaft 55, and the synchronous transmission wheel 56 is in transmission connection with a driving wheel of the lifting motor 51. The left chain wheel shaft seat 52 is internally provided with a left chain wheel 57 fixed on the left chain wheel shaft 54, the right chain wheel shaft seat 53 is internally provided with a right chain wheel 58 fixed on the right chain wheel shaft 55, wherein the left chain wheel 57 and the right chain wheel 58 are respectively connected with the left end and the right end of the lifting welding table 4 through transmission chains.

Further, in the preferred embodiment of the present invention, as shown in fig. 3, the limit guide mechanism 6 comprises a front limit guide wheel 61 and a rear limit guide wheel 62 which are arranged in front and rear, wherein an adapting space 63 for adapting and connecting the guide rail on the workshop is formed between the front limit guide wheel 61 and the rear limit guide wheel 62. Specifically, the on-board guide rail is fitted in this fitting space 63 while the opposing rims of the front and rear

limit guide wheels

61 and 62 are in rolling contact with both side faces of the on-board guide rail. By rolling and abutting, on one hand, the door type vertical frame 1 can be limited, lateral deviation is prevented, and the linear movement stability of the whole platform is improved; on the other hand, the friction resistance between the top sliding beam 3 and the guide rail on the workshop can be reduced, and the linear movement flexibility of the whole platform is improved.

Further, in the preferred embodiment of the present invention, as shown in fig. 2 and 3, the horizontal driving means 7 includes a driving wheel 71 and a servo motor 72 fixed to the right end side of the bottom slide beam 2, and a driven wheel 75 fixed to the left end side of the bottom slide beam 2. A driven sprocket 73 is fixed at the inner end of the wheel axle of the driving wheel 71, a driving sprocket 74 is fixed on the motor shaft of the servo motor 72, and the driven sprocket 73 is in transmission connection with the driving sprocket 74 through a transmission chain. Specifically, drive wheel 71 and follower 75 respectively with workshop ground rail adaptation connection, be equipped with the recess on the rim of drive wheel 71 and follower 75, workshop ground rail slip adaptation can further prevent that portal frame 1 from taking place lateral deviation in the recess, improves the linear movement stability of whole platform.

Further, in the preferred embodiment of the present invention, as shown in fig. 1, in order to reinforce the structural strength of the portal frame 1, a cross-shaped reinforcing connecting member 11 is provided in the frame of the portal frame 1. In order to fix the lifting motor 51 conveniently, as shown in fig. 3, a motor fixing seat 12 is provided in the middle of the top sliding beam 3, and the lifting motor 51 is fixed on the motor fixing seat 12.

In conclusion, the lift platform for girth welding of the wind power tower cylinder is composed of the door type vertical frame and the lift welding table which are of the unilateral structure, has the advantage of light structure, and can be matched with the bottom sliding beam and the top sliding beam to enable the whole platform to move along the extension direction of the cylinder group of the wind power tower cylinder.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a wind power tower cylinder girth welding lift platform, its characterized in that includes gate-type grudging post (1), fixes bottom sliding beam (2) of gate-type grudging post (1) bottom, fix top sliding beam (3) at the top of gate-type grudging post (1) bottom to and sliding connection are in lift welding platform (4) of gate-type grudging post (1) one side, be equipped with on top sliding beam (3) and be used for the drive lift welding platform (4) are followed hoisting device (5) that gate-type grudging post (1) reciprocated, be equipped with respectively on the top left and right sides end post of gate-type grudging post (1) with spacing guiding mechanism (6) of guide rail adaptation connection on the workshop, be equipped with on bottom sliding beam (2) with horizontal drive device (7) of workshop ground rail adaptation connection, the left side of gate-type grudging post (1) is equipped with cat ladder (8).

2. The wind tower girth welding lifting platform of claim 1, the lifting welding table (4) comprises a main frame table (41) and an extension frame table (42) connected to the outer end side of the main frame table (41), the left side and the right side of the main frame platform (41) are provided with guardrails (43), the left side and the right side of the rear end of the main frame platform (41) are respectively provided with a horizontal limiting arm (44), the inner side of the tail end of the horizontal limiting arm (44) is provided with an inner constraint roller (45), the inner constraint roller (45) is in rolling contact with the inner side of a vertical door post of the door type vertical frame (1), vertical limiting arms (46) are arranged on the left side and the right side of the bottom of the main frame platform (41), the inner side of the lower end of the vertical limiting arm (46) is provided with an external restraint roller (47), the external restraint roller (47) is in rolling contact with the outer side of a vertical door post of the door type vertical frame (1).

3. The lift platform for girth welding of a wind tower according to claim 1, wherein the lifting device (5) comprises a lifting motor (51) fixed in the middle of the top sliding beam (3), the left and right sides of the top sliding beam (3) are respectively fixed with a left sprocket shaft seat (52) and a right sprocket shaft seat (53) which are oppositely arranged, the left sprocket shaft seat (52) is provided with a left sprocket shaft (54), the right sprocket shaft seat (53) is provided with a right sprocket shaft (55), the opposite ends of the left sprocket shaft (54) and the right sprocket shaft (55) are connected with a synchronous transmission wheel (56) through a coupling, the synchronous transmission wheel (56) is in transmission connection with a driving wheel of the lifting motor (51), the left sprocket shaft seat (52) is provided with a left sprocket wheel (57) fixed on the left sprocket shaft (54), the right sprocket shaft seat (53) is provided with a right sprocket wheel (58) fixed on the right sprocket shaft (55), the left chain wheel (57) and the right chain wheel (58) are respectively connected with the left end and the right end of the lifting welding table (4) through a transmission chain.

4. The lift platform for girth welding of a wind tower according to claim 1, wherein the limiting and guiding mechanism (6) comprises a front limiting and guiding wheel (61) and a rear limiting and guiding wheel (62) which are arranged in a front-back manner, and an adapting space (63) for adapting and connecting the guide rail on the workshop is formed between the front limiting and guiding wheel (61) and the rear limiting and guiding wheel (62).

5. The wind tower girth welding lifting platform as claimed in claim 1, wherein the horizontal driving device (7) comprises a driving wheel (71) and a servo motor (72) which are fixed on the right end side of the bottom sliding beam (2), and a driven wheel (75) which is fixed on the left end side of the bottom sliding beam (2), a driven sprocket (73) is fixed on the inner end of the wheel shaft of the driving wheel (71), a driving sprocket (74) is fixed on the motor shaft of the servo motor (72), the driven sprocket (73) is in transmission connection with the driving sprocket (74) through a transmission chain, and the driving wheel (71) and the driven wheel (75) are respectively in adaptation connection with a workshop ground rail.

6. The lift platform for girth welding of a wind tower according to claim 1, characterized in that a cross-shaped reinforcing connecting piece (11) is arranged in the frame of the portal frame (1).

7. The lift platform for girth welding of a wind tower according to claim 3, wherein a motor fixing seat (12) is provided in the middle of the top sliding beam (3), and the lifting motor (51) is fixed on the motor fixing seat (12).