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CN-224212286-U - Turning-over and lifting device for large-scale tower parts

CN224212286UCN 224212286 UCN224212286 UCN 224212286UCN-224212286-U

Abstract

The utility model belongs to the technical field of manufacturing of large-scale steel members, and discloses a turnover lifting device for a large-scale tower part, which comprises a rectangular frame; the inside of the rectangular frame is connected with a lifting frame in a sliding manner; the first sliding block is in sliding connection with the lifting frame, the second sliding block is in sliding connection with the bottom of the rectangular frame, two ends of the driving arm are respectively hinged with the first sliding block and the second sliding block, the middle shaft is in sliding connection with a vertical guide groove fixedly arranged in the middle of the rectangular frame, the driving arm is sleeved on the middle shaft, and the first sliding block and the second sliding block are respectively connected with a lifting rope. According to the utility model, in the process of the object to be suspended from lying to standing, the two groups of lifting ropes are synchronously and stably retracted, the operation is simple, the stress is balanced, the two groups of lifting ropes cannot be inclined even when the object to be suspended is completely vertical, the two groups of lifting ropes are always vertical, and the safety is ensured.

Inventors

  • Fang Haoyong
  • YANG CHUNXIANG
  • ZHANG ZHE

Assignees

  • 洛阳卓达石化设备有限公司

Dates

Publication Date
20260508
Application Date
20250626

Claims (6)

  1. 1. A turning-over lifting device for a large-sized tower part comprises a rectangular frame (1) with a lifting ring (11) at the top, and is characterized in that a winch (12) is arranged at the top of the rectangular frame (1), the tail end of a rope (13) connected with the winch (12) stretches into the rectangular frame (1) and is connected with the top of a lifting frame (2), the lifting frame (2) is slidably connected inside the rectangular frame (1), a first sliding block (31) is slidably connected with the lifting frame (2), a second sliding block (32) is slidably connected at the bottom of the rectangular frame (1), two ends of a driving arm (3) are hinged with the first sliding block (31) and the second sliding block (32) respectively, a middle shaft (33) is slidably connected in a vertical guide groove (14) fixedly arranged in the middle of the rectangular frame (1), a shaft hole is formed in the middle of the driving arm (3) and is used for being sleeved on the middle shaft (33), the first sliding block (31) and the second sliding block (32) are slidably connected with lifting ropes (35) respectively, and two ends of the driving arm (3) are connected with the two ends of the lifting rope (35) respectively.
  2. 2. The turnover lifting device for the large-scale tower parts according to claim 1 is characterized in that the rectangular frame (1) is hollow cuboid in shape and comprises two bottom cross beams (151) and bottom frames (15) formed by surrounding connection of two bottom longitudinal beams (152), four vertical upright posts (17) are respectively fixedly connected to four corners of the bottom frames (15), two top cross beams (162) and two top longitudinal beams (161) are respectively fixedly connected to four corners of the top frames (16) through top frames (16); The lifting frame (2) comprises a square frame formed by surrounding and connecting a pair of side beams (22) and a pair of end beams (23), sliding sleeves (21) are fixedly arranged at four corners of the square frame, and the four sliding sleeves (21) are respectively sleeved on the four upright posts (17) and are used for sliding connection of the lifting frame (2) and the rectangular frame (1); The two first sliding blocks (31) are respectively and slidably connected to the two side beams (22), the two second sliding blocks (32) are respectively and slidably connected to the two bottom cross beams (151), and the pair of first sliding blocks (31) and the pair of second sliding blocks (32) are used for hinging the two driving arms (3).
  3. 3. The turning-over and hoisting device for the large-scale tower parts according to claim 2, wherein the bottom frame (15) further comprises two inner cross beams (153), and two ends of the inner cross beams (153) are fixedly connected with the two bottom longitudinal beams (152) respectively and are arranged in parallel with the bottom cross beams (151); The lifting frame (2) further comprises two inner side beams (24) which are positioned right above the two inner cross beams (153), and two ends of each inner side beam (24) are fixedly connected with the two end beams (23) respectively; the inner beam (24) is connected with a third sliding block (41) in a sliding way, and the inner beam (153) is connected with a fourth sliding block (42) in a sliding way; The device further comprises two driven arms (4) which are equal in length to the driving arms (3), the driven arms (4) are arranged in a crossing mode with the driving arms (3), through holes are formed in the middle of the driven arms, the middle shafts (33) penetrate through the driving arms (3) and the driven arms (4), and two ends of the driven arms (4) are hinged to the third sliding block (41) and the fourth sliding block (42) respectively.
  4. 4. The turnover lifting device for the large-scale tower parts, as set forth in claim 1, is characterized in that a mounting plate (18) is fixedly arranged at the top of the rectangular frame (1), the winch (12) is mounted on the mounting plate (18), a passage opening (181) is formed in the mounting plate (18) and used for allowing the ropes (13) to pass through, and lifting lugs (36) are fixedly arranged at the top end of the lifting frame (2) and used for connecting the ropes (13).
  5. 5. The turning-over and hoisting device for the large-scale tower parts according to claim 4, wherein the top end of the guide groove (14) is fixedly connected with the lower end of the mounting plate (18).
  6. 6. The turning-over and hoisting device for the large-scale tower parts according to claim 1, wherein a square block part (34) is arranged in the middle of the intermediate shaft (33) and is used for being slidably inserted into the guide groove (14).

Description

Turning-over and lifting device for large-scale tower parts Technical Field The utility model belongs to the technical field of manufacturing of large-scale steel members, and relates to a turnover lifting device for a large-scale tower part. Background The tower vessel is one of the most important equipment in petrochemical, chemical and oil refining production. The tower is typically manufactured in segments of a plurality of tower components and then assembled. The individual tower sections are typically cylindrical in profile, long in length and heavy in weight. In the manufacturing process, the tower parts need to be turned over, namely, the tower parts in the horizontal posture are turned over to the vertical posture. Two lifting devices are typically used to lift the ends of the tower member separately for turning over. The turning-over lifting device, for example, patent No. CN205555864U, is characterized in that firstly, two lifting devices are difficult to coordinate synchronously, the bearing balance of two groups of ropes is ensured, the single rope is easy to break due to overlarge stress, and secondly, when a lifted object is close to vertical, the two lifting devices are inevitably close to each other but cannot be completely overlapped, so that the lifted object is difficult to finish vertical posture. For example, in the patent CN220264957U, two sliding lifting components are installed by a crane, which has the defect that the two lifting components need to translate and retract ropes, synchronous coordination is quite difficult, and the two groups of ropes are not stressed uniformly and are broken. Disclosure of utility model In order to overcome the defects in the background art, the utility model provides a turnover lifting device for a large-scale tower part, and aims to design a coordination mechanism capable of automatically balancing the retraction and the release of two groups of ropes according to the turnover requirement of a cylindrical part such as the tower part, so that the two groups of ropes are ensured to be retracted and released synchronously, and the turnover lifting device is balanced in stress, safe and reliable. The technical scheme is that the turnover lifting device for the large-sized tower part comprises a rectangular frame, wherein a lifting ring is arranged at the top of the rectangular frame, a winch is arranged at the top of the rectangular frame, the tail end of a rope connected with the winch stretches into the rectangular frame and is connected with the top of a lifting frame, the lifting frame is connected in the rectangular frame in a sliding mode, a first sliding block is connected with the lifting frame in a sliding mode, a second sliding block is connected at the bottom of the rectangular frame in a sliding mode, two ends of a driving arm are hinged with the first sliding block and the second sliding block respectively, an intermediate shaft is connected in a vertical guide groove fixedly arranged in the middle of the rectangular frame in a sliding mode, a shaft hole is formed in the middle of the driving arm and is used for being sleeved on the intermediate shaft, the first sliding block and the second sliding block are connected with lifting ropes respectively, and the tail ends of the two lifting ropes are connected with two ends of the tower part respectively. The rectangular frame is characterized by further optimizing, wherein the outline of the rectangular frame is a hollow cuboid, the rectangular frame comprises two bottom cross beams and two bottom longitudinal beams which are connected in a surrounding mode to form a bottom frame, four vertical upright posts are fixedly connected to four corners of the bottom frame respectively, two top cross beams and two top longitudinal beams are connected in a surrounding mode to form a top frame, four corners of the top frame are fixedly connected to top ends of the four upright posts respectively, the lifting frame comprises a square frame formed by surrounding a pair of side beams and a pair of end beams, sliding sleeves are fixedly arranged at four corners of the square frame, the four sliding sleeves are sleeved on the four upright posts respectively and used for sliding connection of the lifting frame and the rectangular frame, two first sliding blocks are connected to the two side beams respectively in a sliding mode, two second sliding blocks are connected to the two bottom cross beams respectively in a sliding mode, and a pair of first sliding blocks and a pair of second sliding blocks are used for hinging two main movable arms. The lifting frame further comprises two inner cross beams, two ends of each inner cross beam are fixedly connected with the two bottom longitudinal beams and are arranged in parallel with the two bottom cross beams, the lifting frame further comprises two inner side beams which are positioned right above the two inner cross beams, two ends of each inner side beam are fixe