Heavy-load tensile welding chain

Abstract

The invention provides a heavy-load tensile welding chain, and relates to the technical field of chain equipment. A heavy-load tensile welding chain comprises a plurality of chain links, the chain links are alternately connected, an energy absorption mechanism is arranged in each chain link, each energy absorption mechanism comprises two supporting ribs and an energy absorption cavity, the positions of the two supporting ribs are symmetrically distributed relative to the center positions of the chain links, and the energy absorption cavities are arranged in the supporting ribs. One ends of the two supporting ribs are fixedly connected with the two sides of the chain links respectively. When the chain is subjected to negative pressure in the working process, the pressure can be transmitted to hydraulic oil through the supporting ribs and the piston connecting plates, the pressure is partially absorbed through the hydraulic oil, and the residual pressure can be transmitted to the other side of the chain link through the energy absorption cavity, so that pressure sharing is achieved, the integrity of stress of the chain link is improved, and the service life of the chain link is prolonged. The service life of the whole chain is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of chain equipment, and specifically to a heavy-duty tensile welded chain. Background Art

[0002] A welded chain is a metal chain formed by bending round steel into oval rings and then connecting them by forging welding or electric welding, and is widely used in industrial fields such as heavy machinery, hoisting and lifting.

[0003] Traditional welded chains need to work under large loads continuously, and the pressure borne by their own structures is extremely uneven. Such a working state for a long time is very likely to affect their service life. Summary of the Invention

[0004] (I) Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides a heavy-duty tensile welded chain, which solves the problem that traditional welded chains need to work under large loads continuously, and the pressure borne by their own structures is extremely uneven. Such a working state for a long time is very likely to affect their service life.

[0005] (II) Technical Solutions To achieve the above objectives, the present invention is realized through the following technical solutions: A heavy-duty tensile welded chain includes a plurality of chain links. The plurality of chain links are connected alternately. An energy absorption mechanism is provided inside each of the plurality of chain links. The energy absorption mechanism includes two support ribs and an energy absorption cavity. The positions of the two support ribs are symmetrically distributed with respect to the central position of the chain link. One end of each of the two support ribs is fixedly connected to both sides of the chain link. A piston connecting plate is fixedly connected to the end of each support rib away from the inner wall of the chain link. An energy absorption cavity is provided below each of the two support ribs. The two energy absorption cavities are respectively fixedly connected to the left and right inner walls of the chain link. A piston plate is slidably disposed inside the energy absorption cavity.

[0006] Preferably, the energy absorption cavity is filled with hydraulic oil.

[0007] Preferably, a connecting sleeve is provided at the middle position of one of the support ribs.

[0008] Working Principle: During use, when the chain is under negative pressure during operation, the pressure will be transmitted to the hydraulic oil through the support ribs and the piston connecting plate. The hydraulic oil will absorb part of the pressure, and the remaining pressure will be transmitted to the other side of the chain link through the energy absorption cavity, thereby achieving pressure sharing, improving the integrity of the force borne by the chain link itself, and extending the service life of the overall chain.

[0009] (III) Beneficial Effects The present invention provides a heavy-duty tensile welded chain. It has the following beneficial effects: When the chain is under negative pressure during operation, the overload tensile welding chain will transfer the pressure to the hydraulic oil through the support ribs and the piston connecting plate. Part of the pressure will be absorbed by the hydraulic oil, and the remaining pressure will be transferred to the other side of the link through the energy absorption cavity, thus achieving pressure sharing, improving the integrity of the force on the link itself, and extending the service life of the overall chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 for the present invention Figure 1 is an enlarged view of part A.

[0011] Among them, 1, link; 2, support rib; 3, connecting sleeve; 4, hydraulic energy absorption liquid; 5, energy absorption cavity; 6, piston connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0013] As Figure 1-2 shown, in an embodiment of the present invention, a heavy-duty tensile welding chain has multiple links 1 connected alternately. An energy absorption mechanism is provided inside each of the multiple links 1. The energy absorption mechanism includes two support ribs 2 and an energy absorption cavity 5. The positions of the two support ribs 2 are symmetrically distributed about the central position of the link 1. One end of each of the two support ribs 2 is fixedly connected to both sides of the link 1. A piston connecting plate 6 is fixedly connected to the end of each support rib 2 away from the inner wall of the link 1. An energy absorption cavity 5 is provided below each of the two support ribs 2. The two energy absorption cavities 5 are respectively fixedly connected to the left and right inner walls of the link 1. The piston plate 6 is slidably disposed inside the energy absorption cavity 5.

[0014] The inside of the energy absorption cavity 5 is filled with hydraulic oil; preferably, a connecting sleeve 3 is provided at the middle position of one of the support ribs 2.

[0015] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An overloaded tensile welded chain, comprising a plurality of chain links (1), characterized in that: A plurality of the link sections (1) are connected alternately, and an energy absorption mechanism is arranged inside each of the plurality of link sections (1). The energy absorption mechanism includes two support ribs (2) and an energy absorption cavity (5). The positions of the two support ribs (2) are symmetrically distributed with respect to the central position of the link section (1). One end of each of the two support ribs (2) is fixedly connected to both sides of the link section (1). A piston connecting plate (6) is fixedly connected to one end of each support rib (2) away from the inner wall of the link section (1). An energy absorption cavity (5) is arranged below each of the two support ribs (2). The two energy absorption cavities (5) are respectively fixedly connected to the left and right inner walls of the link section (1). The piston plate (6) is slidably arranged inside the energy absorption cavity (5).

2. The heavy-duty tensile welded chain according to claim 1, wherein: The inside of the energy absorption cavity (5) is filled with hydraulic oil.

3. The heavy-duty tensile welded chain according to claim 1, wherein: A connecting sleeve (3) is arranged at the middle position of one of the support ribs (2).

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