Self-assembly type wind power maintenance crane

Abstract

The invention discloses a self-assembly type wind power maintenance crane which comprises an upper climbing ring beam assembly, a horizontal pile embracing push rod, a lifting oil cylinder, a lower ring beam and a hoisting assembly. The upper climbing ring beam assembly is of a double-layer ring beam structure; the multiple sets of horizontal pile holding push rods are arranged on the upper climbing ring beam assembly and the lower ring beam correspondingly. The lifting oil cylinder is arranged between the double-layer ring beam structures of the upper climbing ring beam assembly; the lower ring beam is positioned below the upper climbing ring beam assembly; and the hoisting assembly is connected to the side edges of the upper climbing ring beam assembly and the lower ring beam. The invention provides wind power maintenance equipment which is not influenced by water depth and tide, can be repeatedly assembled and used on a plurality of pile foundations and independently operates.

Description

Technical Field

[0001] The present invention relates to wind power equipment and crane technology, and more particularly to a self-assembling wind power maintenance crane. Background Art

[0002] The maintenance of wind power equipment is an indispensable part of the entire wind power industry chain. The maintenance cost and convenience of wind power equipment have a profound impact on the subsequent development of the wind power industry.

[0003] At present, maintenance of land-based wind power equipment, including the facilities on the top of wind turbine piles, such as blades, is usually completed using crawler cranes with large outreach or other lifting equipment. For sea-based wind power equipment, floating cranes or professional operation and maintenance platforms must be used. At the same time, due to the influence of operating water depth and tides, maintenance work cannot be carried out all day long. On the other hand, if you want to arrange a maintenance crane on the top of the pile for wind power equipment maintenance, it is constrained by construction costs and cannot achieve full coverage installation of the top crane. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a self-assembling wind power maintenance crane, which provides a wind power maintenance equipment that is not affected by water depth and tides, can be repeatedly assembled and used on multiple pile foundations, and operates independently.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A self-assembly type wind power maintenance crane comprises an upper climbing ring beam assembly, a horizontal pile holding push rod, a lifting cylinder, a lower ring beam and a lifting assembly;

[0007] The upward climbing ring beam assembly is configured as a double-layer ring beam structure;

[0008] The horizontal pile holding push rods are provided with multiple sets, which are respectively arranged on the upper climbing ring beam assembly and the lower ring beam;

[0009] The lifting cylinder is arranged between the double-layer ring beam structures of the upward climbing ring beam assembly;

[0010] The lower ring beam is located below the upper climbing ring beam assembly;

[0011] The lifting assembly is connected to the upper climbing ring beam assembly and the side of the lower ring beam.

[0012] Preferably, the upper climbing ring beam assembly includes two detachable polygonal upper ring beams arranged vertically.

[0013] Preferably, the horizontal pile-holding push rod comprises a clamping cylinder, a clamping shaft and a friction plate;

[0014] The clamping oil cylinder is arranged on the upper ring beam and the lower ring beam;

[0015] The clamping shaft is arranged on the output side of the clamping cylinder;

[0016] The friction plate is arranged at the end of the clamping shaft.

[0017] Preferably, the bottom of the lifting cylinder is connected to the upper ring beam located below;

[0018] The output side of the lifting cylinder is connected to the upper ring beam located above.

[0019] Preferably, the lifting assembly comprises a long outreach crane and a mounting base;

[0020] The mounting base is respectively connected to the upper ring beam and the lower ring beam located above;

[0021] The long outreach crane is arranged on the mounting base.

[0022] Preferably, the mounting base is provided with a hydraulically driven upper latch and a lower latch;

[0023] The mounting base is connected to the upper ring beam and the lower ring beam located above through the upper layer latch and the lower layer latch respectively;

[0024] The long outreach crane is connected to the mounting base via a slewing bearing.

[0025] Preferably, a lifting device is provided on the upper ring beam located above.

[0026] Preferably, the upper ring beam and the lower ring beam are configured as detachable polygons.

[0027] The self-assembling wind power maintenance crane provided by the present invention can be used for the maintenance of wind power facilities that are difficult to achieve with conventional maintenance means. The maintenance crane can be installed by its own equipment. The ring beam can adapt to larger changes in pile diameter. The larger distance between the upper and lower ring beams can effectively resist the torque generated by the load. At the same time, for existing piles, only effective support needs to be added inside the ring beam docking position. The maintenance cost is much lower than the current maintenance cost using large floating cranes and other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the front view of the self-assembly type wind power maintenance crane of the present invention;

[0029] Figure 2 It is a side view schematic diagram of the self-assembly type wind power maintenance crane of the present invention;

[0030] Figure 3 yes Figure 2 Schematic diagram of the AA direction. DETAILED DESCRIPTION

[0031] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Combination Figures 1 to 3 As shown, the present invention provides a self-assembly type wind power maintenance crane, which includes an upper climbing ring beam assembly 1, a horizontal pile holding push rod 2, a lifting cylinder 3, a lower ring beam 4 and a lifting assembly 5.

[0033] The climbing ring beam assembly 1 is configured as a double-layer ring beam structure, and adopts a detachable polygonal structure, which is used to hold the pile column 100 tightly.

[0034] A plurality of sets of horizontal pile holding push rods 2 are provided and are respectively installed on the upper climbing ring beam assembly 1 and the lower ring beam 4.

[0035] The lifting cylinder is arranged between the double-layer ring beam structures of the upper climbing ring beam assembly 1.

[0036] The lower ring beam 4 is located below the upper climbing ring beam assembly 1 .

[0037] The lifting assembly 5 is connected to the side positions of the upper climbing ring beam assembly 1 and the lower ring beam 4.

[0038] The upper climbing ring beam assembly 1 comprises two upper ring beams 11 arranged one above the other.

[0039] The horizontal pile-holding push rods 2 each include a clamping oil cylinder, a clamping shaft and a friction plate.

[0040] The clamping cylinder is installed on the upper ring beam 11 and the lower ring beam 4.

[0041] The clamping shaft is installed on the output side of the clamping cylinder;

[0042] The friction plate is mounted on the end of the clamping shaft.

[0043] The clamping shaft is driven by a clamping oil cylinder, and the friction plate is in contact with the pile column 100 , which can provide greater friction resistance when clamping the pile column 100 . The stroke of the clamping oil cylinder can cover the diameter change of the pile column 100 .

[0044] The lifting cylinders 3 are all arranged between the two upper ring beams 11 , with their bottoms connected to the upper ring beam 11 located below, and their output sides connected to the upper ring beam 11 located above.

[0045] At the same time, a ring beam guide 6 is also arranged between the two upper ring beams 11 .

[0046] The upper ring beam 11 at the top is also provided with a lifting device to enable it to have a higher lifting capacity.

[0047] The lifting assembly 5 comprises a long outreach crane 51 and a mounting base 52 .

[0048] The long outreach crane 51 is connected to the mounting base 52 via a slewing bearing 53 .

[0049] The mounting base 52 is provided with a hydraulically driven upper latch 54 and a lower latch 55. The mounting base 52 is connected to the upper ring beam 11 and the lower ring beam 4 located above through the upper latch 54 and the lower latch 55 respectively to transfer vertical loads and bending moments.

[0050] The lower ring beam 4 also adopts a detachable polygonal structure for holding the pile column 100. A guide and mounting structure for mounting a base 52 is arranged on one side of the lower ring beam 4.

[0051] During the assembly process of the self-assembly type wind power maintenance crane of the present invention, the upper climbing ring beam assembly 1 can be stepped up to the upper part of the pile column 100 and supported firmly, and the lower ring beam 4 is hoisted into place by using its own lifting equipment. Then the lifting assembly 5 is hoisted, and the large outreach crane 51 is connected to the installation base 52 through the slewing bearing 53. The installation base 52 is connected to the upper ring beam 11 and the lower ring beam 4 located above through the upper layer latch 54 and the lower layer latch 55, respectively, to form a longer bending resistance distance to cope with the bending moment caused by the lifting weight.

[0052] Example

[0053] Refer to Figures 1 to 3 As shown, the self-assembled wind power maintenance crane of this embodiment includes an upper climbing ring beam assembly 1, a horizontal pile holding push rod 2, a lifting cylinder 3, a lower ring beam 4 and a lifting assembly 5.

[0054] The upper climbing ring beam assembly 1 is composed of two upper ring beams 11 arranged in the upper and lower layers. The upper ring beams 11 are hexagonal and detachable structures. The upper ring beam 11 of the upper layer is provided with a lifting winch and a ring beam guide column 6, and a horizontal pile holding push rod 2 is arranged inside the beam body. The upper ring beam 11 of the lower layer is provided with a ring beam guide hole, and a horizontal pile holding push rod 2 is also arranged inside the beam body. One side of the upper ring beams 11 of the upper and lower layers has a pin hole structure for installing the lifting assembly 5.

[0055] The horizontal pile holding push rod 2 is composed of a clamping oil cylinder, a clamping shaft, and a friction plate with multiple degrees of freedom at the shaft end. The length of the clamping oil cylinder and the clamping shaft depends on the diameter variation range of the pile column 100. The swingable angle of the friction plate with multiple degrees of freedom at the shaft end depends on the diameter variation speed of the pile column 100. The friction force generated by the clamping force driven by the horizontal pile holding push rod 2 can meet the vertical load requirement of the equipment's deadweight.

[0056] The lifting cylinder 3 is a set of driving cylinders connected to the two upper ring beams 11. Through the alternating actions of the lifting cylinder 3 and the horizontal pile-holding push rod 2, the alternating actions of the two upper ring beams 11 are realized to rise to the desired position.

[0057] The lower ring beam 4 is also a hexagonal, detachable box-shaped structure. A horizontal pile-holding push rod 2 is arranged inside the beam body. When the horizontal pile-holding push rod 2 holds the pile column 100 tightly, the lower ring beam 4 can bear loads in all directions.

[0058] The lifting assembly 5 includes a long reach crane 51 and a mounting base 52, which are connected by a slewing bearing 53 to achieve limited angle rotation. The height of the mounting base 52 is determined by the distance between the upper climbing ring beam assembly 1 and the lower ring beam 4. The upper layer latch 54 and the lower layer latch 55 with high strength and large diameter are respectively connected to the upper climbing ring beam assembly 1 and the lower ring beam 4 to transmit the vertical load and bending moment of the long reach crane 51 and its load.

[0059] The self-assembly type wind power maintenance crane of this embodiment is assembled in the following steps:

[0060] 1) hoisting the upper ring beam 11 of the middle and lower layers of the upper climbing ring beam assembly 1 (including the internal horizontal pile-holding push rod 2) to the pile column 100, and completing the closing of the structure;

[0061] 2) The upper ring beam 11 (including the guide column) of the upper climbing ring beam assembly 1 (including the internal horizontal pile holding push rod 2) is hoisted to the pile column 100 and is located above the lower upper ring beam 11. After the structure is closed, the upper ring beam 11 of the upper layer is slowly lowered by the auxiliary crane. During the process, the guide column of the upper ring beam 11 of the upper layer should pass through the guide hole of the upper ring beam 11 of the lower layer;

[0062] 3) Fix the lifting cylinder 3 between the upper ring beams 11 of the upper and lower layers;

[0063] 4) Alternately extend the lifting cylinder 3, the upper ring beam 11 of the upper layer holds the pile, and retract the lifting cylinder 3, the upper ring beam 11 of the lower layer holds the pile, so that the climbing ring beam assembly 1 reaches a predetermined height. The diameter change of the pile column 100 is adjusted by the extension distance of the horizontal pile holding push rod 2;

[0064] 5) The lifting equipment equipped by the ring beam assembly lifts the lifting assembly 5 to the installation position, and the installation base 52 is connected and fixed to the upper climbing ring beam assembly 1 and the lower ring beam 4 respectively through the upper latch 54 and the lower latch 55;

[0065] 6) After the connection is secure, normal operation can begin.

[0066] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A self-assembling wind power maintenance crane, characterized in that: It includes an upper climbing ring beam assembly, a horizontal pile holding push rod, a lifting cylinder, a lower ring beam and a lifting assembly; The upward climbing ring beam assembly is configured as a double-layer ring beam structure; The horizontal pile holding push rods are provided with multiple sets, which are respectively arranged on the upper climbing ring beam assembly and the lower ring beam; The lifting cylinder is arranged between the double-layer ring beam structures of the upward climbing ring beam assembly; The lower ring beam is located below the upper climbing ring beam assembly; The lifting assembly is connected to the upper climbing ring beam assembly and the side of the lower ring beam.

2. The self-assembly type wind power maintenance crane according to claim 1 is characterized in that: The upper climbing ring beam assembly comprises two detachable polygonal upper ring beams arranged up and down.

3. The self-assembly type wind power maintenance crane according to claim 2 is characterized in that: The horizontal pile-holding push rods all include a clamping oil cylinder, a clamping shaft and a friction plate; The clamping oil cylinder is arranged on the upper ring beam and the lower ring beam; The clamping shaft is arranged on the output side of the clamping cylinder; The friction plate is arranged at the end of the clamping shaft.

4. The self-assembly type wind power maintenance crane according to claim 2 is characterized in that: The bottom of the lifting cylinder is connected to the upper ring beam located below; The output side of the lifting cylinder is connected to the upper ring beam located above.

5. The self-assembly type wind power maintenance crane according to claim 2, characterized in that: The lifting assembly includes a long-reach crane and a mounting base; The mounting base is respectively connected to the upper ring beam and the lower ring beam located above; The long outreach crane is arranged on the mounting base.

6. The self-assembly type wind power maintenance crane according to claim 5, characterized in that: The mounting base is provided with a hydraulically driven upper latch and a lower latch; The mounting base is connected to the upper ring beam and the lower ring beam located above through the upper layer latch and the lower layer latch respectively; The long outreach crane is connected to the mounting base via a slewing bearing.

7. The self-assembly type wind power maintenance crane according to claim 2, characterized in that: A lifting device is provided on the upper ring beam located above.

8. The self-assembly type wind power maintenance crane according to claim 1, characterized in that: The lower ring beam is configured as a detachable polygon.

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