CN-224212251-U - Lifting appliance for tower drum of fan

Abstract

The utility model relates to the technical field of lifting appliances and discloses a fan tower lifting appliance, which comprises a base body, a supporting piece, a fastening piece and a lifting piece, wherein the top of the base body is provided with two first mounting grooves, the bottom of the base body is provided with two second mounting grooves, the first mounting grooves are communicated with the second mounting grooves, the width of each first mounting groove is larger than that of each second mounting groove, at least two supporting pieces are respectively arranged in each first mounting groove, the supporting pieces can slide in each first mounting groove, the supporting pieces are provided with first mounting holes, the fastening piece is arranged in each first mounting hole, one end of the fastening piece penetrates through each second mounting groove, and the lifting piece is arranged at the top of the base body.

Inventors

• ZHANG FANGBO
• TANG JIANJUN
• CAO DONGMEI
• Zhou Haofu
• ZHENG LIJUN
• LI YANXIAO
• XU MENG

Assignees

• 中国三峡新能源(集团)股份有限公司

Dates

Publication Date

20260508

Application Date

20250521

Claims (10)

1. 1. A lifting appliance for a tower drum of a fan, characterized by comprising the following steps: The novel portable electric power tool comprises a base body (1), wherein two first mounting grooves (101) are formed in the top of the base body (1), two second mounting grooves (102) are formed in the bottom of the base body (1), the first mounting grooves (101) are communicated with the second mounting grooves (102), and the width of each first mounting groove (101) is larger than that of each second mounting groove (102); The support pieces (2) are respectively arranged in the first mounting grooves (101), the support pieces (2) can slide in the first mounting grooves (101), and first mounting holes are formed in the support pieces (2); A fastener (3), wherein the fastener (3) is installed in the first installation hole, and one end of the fastener (3) penetrates through the second installation groove (102) and is suitable for being connected with a fan tower; The lifting piece (4), the lifting piece (4) is arranged at the top of the base body (1) and is positioned between the two first mounting grooves (101).
2. 2. The wind turbine tower crane of claim 1, further comprising: And at least one gasket (5), wherein the gasket (5) is detachably filled between the side wall of the first mounting groove (101) and the supporting piece (2) along the width direction of the first mounting groove (101).
3. 3. The wind turbine tower crane of claim 2, further comprising: The cover plate (6), the cover plate (6) is arranged in the first mounting groove (101) and is located at the top of the supporting piece (2) and the top of the gasket (5), a second mounting hole (601) is formed in the cover plate (6), the fastener (3) is installed in the second mounting hole (601) in a penetrating mode, and the second mounting hole (601) and the fastener (3) are in clearance fit in the width direction of the cover plate (6).
4. 4. A wind turbine tower crane according to claim 2 or 3, wherein the side of the base (1) is provided with a bar hole (103), the side of the support (2) is provided with a protrusion (201), the spacer (5) is provided with a notch (501), the protrusion (201) is movably mounted in the bar hole (103), and the protrusion (201) passes through the notch (501).
5. 5. The fan tower crane according to claim 1, wherein a third mounting hole is provided in the base body (1), the third mounting hole is provided between the two first mounting grooves (101), a support shaft (7) is mounted in the third mounting hole, and the crane (4) is connected with the support shaft (7).
6. 6. The fan tower spreader according to claim 5, characterized in that the supporting shaft (7) comprises a flange section (702) and a shaft section (701), the shaft section (701) is arranged in the third mounting hole in a penetrating way, and the hoisting member (4) is detachably connected with one end of the shaft section (701) away from the flange section (702).
7. 7. The wind turbine tower crane of claim 5, further comprising: -a first bearing (8), said first bearing (8) being arranged between said third mounting hole and said supporting shaft (7); -a second bearing (9), said second bearing (9) being arranged between said third mounting hole and said supporting shaft (7).
8. 8. The fan tower crane according to claim 6, wherein an end of the shaft section (701) remote from the flange section (702) is provided with an external thread, the crane (4) is provided with an internal thread, and the shaft section (701) is in threaded connection with the crane (4).
9. 9. The wind turbine tower crane according to claim 1, wherein the bottom of the support (2) and the inner bottom surface of the first mounting groove (101) are provided with corrugations (202).
10. 10. Fan tower spreader according to claim 1, characterized in that the angle between the extension directions of the two first mounting grooves (101) is smaller than 180 °, two of the support elements (2) being mounted in each of the first mounting grooves (101).

Description

Lifting appliance for tower drum of fan Technical Field The utility model relates to the technical field of lifting appliances, in particular to a fan tower cylinder lifting appliance. Background The wind turbine tower refers to a connecting component between a wind turbine generator and a foundation ring, and is of a complete cylindrical structure, is a supporting structure of a wind turbine generator, bears the weight of a cabin, blades and the like, and enables the wind turbine generator to stably operate in high altitude through the support and fixation of the tower, so that more wind energy is captured and converted into electric energy. The tower sections are usually connected by flanges, and the tower sections are fastened together by flange rings and bolts. After the tower is transported to a construction site, the tower is lifted and installed by utilizing a lifting appliance, the transversely arranged tower is gradually erected in sections and kept in a vertical state, and then the tower is leveled, the verticality of the tower is measured, and all bolts are fastened. In the prior art, a lifting appliance of a fan tower cylinder is generally provided with a base body, two connecting bolts and lifting pieces are arranged on the base body, one of the two connecting bolts adopts a strip hole to carry out transverse and longitudinal adjustment, and in the mode, the connecting speed is high, only one bolt is used as a reference on site, the other bolt is used for adjustment, and the lifting appliance can be fast fastened. But with the adoption of the mode, the number of bolts connected with the lifting appliance is limited, lifting pulling force applied to the tower barrel is concentrated in a smaller area, so that the load borne by the connecting bolts is uneven, the lifting appliance and the lifting rope are easy to fail, and the potential safety hazard is increased. Disclosure of utility model In view of the above, the utility model provides a fan tower crane, which solves the problems that in the prior art, the load borne by a fan tower crane connecting bolt is uneven, the crane and a sling are easy to fail, and the potential safety hazard is increased. The utility model provides a fan tower lifting appliance, which comprises a base body, a supporting piece, a fastening piece and a lifting piece, wherein two first mounting grooves are formed in the top of the base body, two second mounting grooves are formed in the bottom of the base body, the first mounting grooves are communicated with the second mounting grooves, the width of each first mounting groove is larger than that of each second mounting groove, at least two supporting pieces are respectively arranged in each first mounting groove, the supporting pieces can slide in the first mounting grooves, first mounting holes are formed in the supporting pieces, the fastening piece is arranged in the first mounting holes, one end of the fastening piece penetrates through each second mounting groove and is suitable for being connected with a fan tower, and the lifting piece is arranged at the top of the base body and is positioned between the two first mounting grooves. The support piece is movably arranged in the first mounting groove on the base body, and can provide more shearing-resistant load for the fastener in the lifting process of lifting the fan tower, so that the support piece can participate in load distribution, the stability of lifting the tower is improved, and meanwhile, the damage condition of concentrated local stress of the tower is avoided, so that the safety in lifting is ensured. In an alternative embodiment, the wind turbine tower spreader further comprises at least one spacer which is removably filled between the first mounting groove side wall and the support member in the direction of the first mounting groove width. The support has the advantages that the combination of the gasket and the support can provide more shearing load for the fastener, participate in load distribution, improve the stability of tower hoisting, avoid the damage condition of local stress concentration of the tower hoisting, and set the first mounting hole on the support to deviate from the central axis at the same time, so that the fastener has different offset, the preliminary coarse adjustment can be realized, and the fine adjustment can be realized through a smaller number of gaskets. In an alternative embodiment, the fan tower crane further comprises a cover plate, the cover plate is arranged in the first mounting groove and positioned at the top of the supporting piece and the gasket, a second mounting hole is formed in the cover plate, the fastener is installed in the second mounting hole in a penetrating mode, and the second mounting hole is in clearance fit with the fastener in the width direction of the cover plate. The cover plate has the beneficial effects that the support piece and the gasket can be tightly pressed by the cover plate, so t