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CN-224226464-U - Crane heavy-load chain structure

CN224226464UCN 224226464 UCN224226464 UCN 224226464UCN-224226464-U

Abstract

The utility model relates to the technical field of heavy-duty chains and discloses a crane heavy-duty chain structure, which comprises a chain, wherein the chain is formed by connecting a plurality of chain rings, two ends of the chain are connected with a first connecting ring and a second connecting ring, wear-resistant layers are sleeved at the two ends of the first connecting ring, the second connecting ring and the chain rings, a lifting hook is arranged at the bottom end of the first connecting ring, and one end of the chain is connected with a crane through the second connecting ring. Through setting up the wearing layer that increases at the both ends of chain ring, the wearing layer adopts alloy steel material simultaneously, has better wear-resisting and high temperature resistant effect, and the wearing layer forms for tubular welding, can in time change when wearing and tearing appear, avoids wearing and tearing the chain ring, increases the life of chain ring to the cover groove of corresponding thickness has been seted up to the position of installation wearing layer, and the wearing layer installation back, junction is in smooth state, and protruding state can not appear in the junction.

Inventors

  • ZHU SONGHUA

Assignees

  • 杭州环链机械有限公司

Dates

Publication Date
20260512
Application Date
20250725

Claims (6)

  1. 1. A heavy-duty chain structure of a crane, comprising: The chain (1), the chain (1) is formed by connecting a plurality of chain rings, the two ends of the chain (1) are connected with a first connecting ring (2) and a second connecting ring (3), and wear-resistant layers (25) are sleeved at the two ends of the first connecting ring (2), the second connecting ring (3) and the chain rings; the lifting hook (4) is arranged at the bottom end of the first connecting ring (2), and one end of the chain (1) is connected with the crane through the second connecting ring (3).
  2. 2. The heavy-duty chain structure of a crane according to claim 1, wherein the top end of the lifting hook (4) is fixedly provided with a lifting ring (41), and the lifting ring (41) is sleeved at one end of the first connecting ring (2).
  3. 3. The heavy-duty chain structure of a crane according to claim 1, wherein openings are formed in one sides of the first connecting ring (2) and the second connecting ring (3), and a sealing tube (21) is arranged at the opening.
  4. 4. A heavy-duty chain structure of a crane according to claim 3, wherein a stopper (22) is fixedly arranged at one end of the opening, a connecting block (23) is fixedly arranged at the other end of the opening, and one end of the sealing tube (21) is in threaded connection with the connecting block (23).
  5. 5. A heavy-duty chain structure for a crane according to claim 1, wherein the wear-resistant layer (25) is made of alloy steel, and the wear-resistant layer (25) is of a tubular structure.
  6. 6. The heavy-duty chain structure of a crane according to claim 1, wherein the first connecting ring (2), the second connecting ring (3) and the outer surfaces of the two ends of the chain ring are provided with sleeve grooves (24), and the wear-resistant layer (25) is sleeved on the outer surfaces of the sleeve grooves (24), and the depth of the wear-resistant layer (25) is the same as the thickness of the sleeve grooves (24).

Description

Crane heavy-load chain structure Technical Field The utility model relates to the technical field of heavy-duty chains, in particular to a heavy-duty chain structure of a crane. Background The heavy-duty chain is a standard high-strength hoisting device and is mainly used for lifting heavy objects in industrial, ship, wharf and other scenes. The chain is made of manganese steel materials, and strength is improved through a high Wen Zhanhuo and quenching process. For example, chinese patent CN219472653U discloses an explosion-proof hoisting chain, including the monocyclic of metal preparation, constitute the hoisting chain through monocyclic end to end, the monocyclic includes outer loop portion and reinforcement portion, outer loop portion cup joints the surface at reinforcement portion, outer loop portion includes the metal inner ring, the spread groove has all been seted up to the welding position at metal inner ring both ends, two the inside of spread groove is fixedly connected with joint piece respectively and has seted up the joint groove, reinforcement portion includes the reinforcement ring, the cladding groove has been seted up to the surface of reinforcement ring. This explosion-proof jack-up chain increases the welding area through seting up the spread groove at the welding position of metal inner ring to fixed connection joint piece and seting up joint groove and peg graft each other on the platform of spread groove respectively, when the metal inner ring received tensile, joint piece and joint groove were held down each other and are reduced the atress of metal inner ring junction, reached the effect that promotes jack-up chain security, but traditional heavy load chain when user state, the both ends of chain link can rub, use both ends department can slowly wearing and tearing for a long time, thereby lead to unable use, so put forward a hoist heavy load chain structure in order to solve above-mentioned problem. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides a heavy-duty chain structure of a crane, which has the advantages of increasing the wear resistance of the two ends by adding a wear-resistant layer, and the like, and solves the problem of wear of the two ends of the traditional chain ring. (II) technical scheme In order to achieve the aim of increasing the wear resistance of two ends, the utility model provides the following technical scheme that the heavy-duty chain structure of the crane comprises the following components: The chain is formed by connecting a plurality of chain rings, two ends of the chain are connected with a first connecting ring and a second connecting ring, and wear-resistant layers are sleeved at the two ends of the first connecting ring, the second connecting ring and the chain rings; The lifting hook is arranged at the bottom end of the first connecting ring, and one end of the chain is connected with the crane through the second connecting ring. Preferably, the top end of the lifting hook is fixedly provided with a lifting ring, the lifting ring is sleeved at one end of the first connecting ring, and the chain is connected with the lifting hook through the first connecting ring with one section. Preferably, the opening is all offered to one side of first go-between and second go-between, the opening part is provided with the pipe seal, open-ended one end fixed mounting has the dog, open-ended other end fixed mounting has the connecting block, and the one end and the connecting block threaded connection of pipe seal, accessible rotation pipe seal makes one end of pipe seal break away from the connecting block to open the opening, be convenient for connect the chain. Preferably, the wearing layer is alloy steel, the wearing layer is tubular structure, has better wear-resisting and high temperature resistant effect, and the wearing layer is tubular welding and forms, can in time change when wearing and tearing appear, avoids wearing and tearing the chain ring, increases the life of chain ring. Preferably, the sleeve grooves are formed in the outer surfaces of the two ends of the first connecting ring, the second connecting ring and the chain ring, the wear-resistant layer is sleeved on the outer surfaces of the sleeve grooves, the depth of the wear-resistant layer is the same as the thickness of the sleeve grooves, after the wear-resistant layer is installed, the connecting position is in a smooth state, and the connecting position is not in a protruding state. (III) beneficial effects Compared with the prior art, the utility model provides a crane heavy-duty chain structure, which has the following beneficial effects: Through setting up the wearing layer that increases at the both ends of chain ring, the wearing layer adopts alloy steel material simultaneously, has better wear-resisting and high temperature resistant effect, and the wearing layer forms for tubular welding, can in