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CN-122009387-A - Torsion correction device for chain links of anchor chains

CN122009387ACN 122009387 ACN122009387 ACN 122009387ACN-122009387-A

Abstract

The invention discloses an anchor chain link torsion correction device, and belongs to the technical field of link correction devices. The horizontal stress panel is fixed at the top of the main support assembly, the inclined stress assembly with an inclined surface is arranged in the side edge area of the horizontal stress panel, and the inclined stress assembly is of a folding structure which is fixed or driven to be unfolded by an internal transmission unit. According to the invention, the torsional anchor chain pressed downwards by gravity is supported by the horizontal stress panel, the anchor chain is forced to turn over and reset to the non-blocking side forcefully by utilizing the unidirectional blocking of the inclined stress assembly, and the mechanical initial positioning or internal linkage tensioning locking function of the device is combined, so that the safe automatic correction of the gravity is realized, an operator can be far away from a dangerous area during correction, and the intrinsic safety and the operation efficiency of the ship anchoring operation are greatly improved.

Inventors

  • HUANG XIAOXUE
  • QI YIN
  • TANG YANYU
  • SHAO GUOYU
  • XU JIAMING
  • TANG ZHIRU
  • SHAO PENGFEI
  • HE LIANG
  • HE YUNPENG
  • WU PENGFEI

Assignees

  • 渤海大学

Dates

Publication Date
20260512
Application Date
20260316

Claims (10)

  1. 1. An apparatus for correcting torsion of a chain link of an anchor chain, comprising A main support assembly disposed transversely above the anchor sprocket for providing a load bearing basis for the overall orthotic device; the circular arc-shaped bases (2) are symmetrically arranged at two ends of the main support assembly and are used for being clamped into a chain wheel groove of the anchor chain wheel to realize initial positioning; a traction assembly fixed to an outer side of the main support assembly, having a traction hole (31) for penetrating a traction rope to guide the device to move into position; A horizontal stress panel (4) fixed on the top of the main support assembly and used for bearing an anchor chain which is in a torsion state and is pressed down by gravity; The inclined stress assembly is arranged on the horizontal stress panel (4) and used for preventing the downward-pressed anchor chain from tilting to one side so as to force the anchor chain to forcedly overturn to the opposite side to finish correction.
  2. 2. The torsion correction device for chain links according to claim 1, characterized in that the main support assembly is a single-layer main support plate (1), the traction assembly is a triangular eye plate (3) welded between two sides of the main support plate (1) and the horizontal stress panel (4), the inclined stress assembly comprises a support side plate (5) and an inclined stress panel (6), the support side plate (5) is vertically welded at the edge of the horizontal stress panel (4), one end of the inclined stress panel (6) is welded between the position 1/3 of the length of the horizontal stress panel (4) and one end of the support side plate (5), and the surface of the inclined stress panel forms an inclined surface (61).
  3. 3. The torsion correction device for the chain links of the anchor chains according to claim 1, wherein the main support component is a main support seat (71) with a hollow inside, the traction component is a triangular eye plate (3) welded between two sides of the main support seat (71) and the horizontal stress panel (4), the inclined stress component comprises two folding panels (42) which are symmetrically arranged, two symmetrical containing sink grooves (41) which are positioned at 1/3 positions are correspondingly arranged on the horizontal stress panel (4), and the folding panels (42) are rotatably arranged in the containing sink grooves (41) and are initially parallel to the surface of the horizontal stress panel (4) to form the stress panel after being unfolded.
  4. 4. The torsion correction device for the chain links of the anchor chains according to claim 3, wherein an adapter seat (421) is fixed on the bottom surface of the folding panel (42), a swing supporting rod (43) is hinged on the adapter seat (421) through a pin shaft, a limiting sliding shaft (431) is fixed on the side surface of the other end of the swing supporting rod (43), limiting sliding grooves (44) are formed in two sides of the inner wall of the accommodating sink groove (41), the limiting sliding shaft (431) is slidably matched in the limiting sliding grooves (44) and used for providing support when the folding panel (42) is unfolded, and a through groove (45) is formed in the upper surface of the accommodating sink groove (41).
  5. 5. The device according to claim 4, further comprising a transmission unit, wherein the transmission unit comprises a jacking assembly (7) for selectively jacking any one of the folding panels (42) according to actual requirements, the jacking assembly (7) comprises a main rotating shaft (72) with a horizontal bearing arranged in a main supporting seat (71), and two jacking cams (74) fixedly sleeved on the main rotating shaft (72), the two jacking cams (74) are respectively located under corresponding through grooves (45) to respectively jack the two folding panels (42), and the width direction of the through grooves (45) covers the rotating path of the jacking cams (74).
  6. 6. The device according to claim 5, wherein a main supporting block (721) for supporting the main rotating shaft (72) in an auxiliary manner is fixed inside the main supporting seat (71), auxiliary supporting blocks (73) are vertically fixed on the bottom surface of the main supporting seat (71), four auxiliary supporting blocks (73) are sleeved on the main rotating shaft (72) and each two auxiliary supporting blocks are a group of jacking cams (74), the tips of the two jacking cams (74) are arranged in a staggered manner relatively, and the jacking cams are used for jacking up one corresponding folding panel (42) upwards when the main rotating shaft (72) is controlled to rotate leftwards by 90 degrees, and the other jacking cams are not contacted with the folding panel (42) and rotate rightwards by 90 degrees or vice versa.
  7. 7. The device for correcting torsion of chain links according to claim 6, characterized in that the transmission unit further comprises a driving unit, the driving unit comprises a worm wheel (76), a worm (77) and a control hand wheel (78), the worm wheel (76) is coaxially and fixedly sleeved on the main rotating shaft (72), the worm (77) is rotatably arranged on the main supporting seat (71) in a penetrating manner and meshed with the worm wheel (76), and one end of the worm (77) penetrates out of the main supporting seat (71) to be fixed with the control hand wheel (78) for providing manual input power.
  8. 8. The device according to claim 7, wherein the transmission unit further comprises two tensioning units which are arranged in a staggered and opposite mode and used for keeping the device clamped inside the anchor chain wheel without manual hand, the tensioning units comprise side support plates (75), a driving bevel gear (79) and a driven bevel gear (712), the side support plates (75) are vertically fixed on the bottom surface of the inner wall of the main support seat (71) and are positioned on one side of the main rotation shaft (72), the driving bevel gear (79) is coaxially and fixedly sleeved on the main rotation shaft (72), a horizontal bearing on the side support plates (75) penetrates through the transmission shaft (711), and the driven bevel gear (712) is fixed at one end of the transmission shaft (711) and meshed with the driving bevel gear (79).
  9. 9. The device according to claim 8, wherein the tensioning units further comprise a pushing cam (713), a guiding sliding rod (714) and a wedge-shaped pushing block (715), the top end of the inner wall of the main support seat (71) is vertically fixed with a guiding bracket (710), the pushing cam (713) is fixed at the other end of the transmission shaft (711) and is provided with two tips, the two tips of the pushing cams (713) of the two tensioning units are in a vertical state by default and are used for pushing the wedge-shaped pushing block (715) no matter the main rotation shaft (72) is driven to turn left or right by 90 degrees, the guiding sliding rods (714) are vertically arranged in parallel, the guiding sliding rods (714) corresponding to the two tensioning units are respectively extended outwards and reversely, the guiding bracket (710) corresponding to the main support seat (71), two ends of the main support seat (71) and the circular arc-shaped base (2) are respectively movably penetrated, and the wedge-shaped pushing block (715) is fixed at one ends of the guiding sliding rods (714) stretching into the main support seat (71) for converting the pushing force of the main support seat (71) into the transverse tensioning force.
  10. 10. The device according to claim 9, wherein the tensioning unit further comprises a tensioning seat (716), the tensioning seat (716) is externally connected with the guide sliding rod (714) of the tensioning unit at the corresponding side, a return spring (717) is sleeved on the guide sliding rod (714), two ends of the return spring (717) are respectively connected with the side face of the wedge-shaped push block (715) and the side face of the guide bracket (710), the tensioning seat (716) is initially attached to the circular arc-shaped base (2), and a silica gel anti-slip pad is arranged at a contact position between the surface of the tensioning seat (716) and the groove of the anchor chain.

Description

Torsion correction device for chain links of anchor chains Technical Field The invention relates to the technical field of chain ring correcting devices, in particular to an anchor chain ring torsion correcting device. Background In the anchoring and the pulling operations of the ship, the anchor chain is a key force-bearing component for connecting the ship body and the anchor. The common marine anchor chain is formed by connecting transverse rings and vertical rings which are mutually staggered by 90 degrees in series. In the normal anchor receiving process, the anchor chain can pass through the guide chain roller under the traction of the anchor machine, wherein the vertical ring is just smoothly clamped into a specific guide groove of the chain wheel, and the horizontal ring is flatly attached to the surface of the chain wheel, so that stable receiving and releasing are realized. However, the anchor chain suspended in the water is susceptible to integral torsion due to the influence of the current impact, the yaw of the ship or the overturning of the anchor body on the sea floor. When the twisted anchor chain is pulled to the anchor windlass, the vertical ring which originally enters the guide groove in the vertical posture deflects 90 degrees to be changed into the horizontal ring state, so that the anchor chain cannot be clamped into the guide groove of the chain wheel, the anchor chain is blocked or jumps, and the anchor windlass must be stopped at the moment. In the face of the emergency of the torsion dislocation of the anchor chain, currently, a shipman can only use conventional simple tools such as a steel wire rope, a chain block or a large crow bar to approach the anchor chain with extremely high stress, and the misplaced chain ring is forced to be pried or pulled by manpower to try to turn back to the correct posture. The existing operation mode of forcibly overturning misplaced chain links at close range by means of a simple tool has potential safety hazards, because the weight of a suspended anchor chain is extremely large and unpredictable dynamic high tension is brought along with sea waves, in the process of manually prying or pulling, the self weight of the anchor chain is large and the tension is in dynamic change, once the chain links are suddenly released after being blocked, or the pulling tool slips and trips, accumulated mechanical stress is instantaneously released to easily cause the heavy anchor chain to swing out of control, or the pulling tool is accidentally collapsed, so that potential safety hazards are caused to crews in a close range operation area. It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and, therefore, it may include information that does not form the prior art. Disclosure of Invention The embodiment of the invention provides a torsion correction device for chain links of an anchor chain, which aims to solve the technical problems of uncontrollable dynamic high-tension release and high operation danger coefficient in the existing mode of manually correcting misplaced chain links by means of a simple tool. The embodiment of the invention adopts the following technical scheme that the torsion correction device for the chain links of the anchor chains is provided. Comprises a main support assembly which is arranged above the anchor chain wheel in a crossing way and is used for providing a bearing foundation for the integral correction device; the circular arc-shaped bases are symmetrically arranged at two ends of the main support assembly and are used for being clamped into a chain wheel groove of the anchor chain wheel to realize initial positioning; the traction assembly is fixed on the outer side surface of the main support assembly and is provided with a traction hole for penetrating a traction rope to guide the device to move into position; The horizontal stress panel is fixed at the top of the main support assembly and is used for receiving an anchor chain which is in a torsion state and is pressed down by gravity; and the inclined stress assembly is arranged on the horizontal stress panel and used for blocking the downward-pressed anchor chain from tilting to the side so as to force the anchor chain to forcedly overturn to the opposite side to finish correction. Further, the main support assembly is a single-layer main support plate, the traction assembly is a triangular eye plate welded between two sides of the main support plate and the horizontal stress panel, the inclined stress assembly comprises a support side plate and an inclined stress panel, the support side plate is vertically welded at the edge of the horizontal stress panel, one end of the inclined stress panel is welded between the position 1/3 of the length of the horizontal stress panel and one end of the support side plate, and the inclined surface is formed on the surface of the inclined str