Ship anchor chain cutting equipment

Abstract

The present invention discloses a ship anchor chain shearing device, comprising a supporting mechanism, a tie rod mechanism and a shearing mechanism, wherein the supporting mechanism comprises a base supported on the ground, a bracket installed on the inner side of the base, an outer cover installed on the base, a positioning member connected to the outer cover, and a limit clamp installed on both ends of the positioning member. By opening a circular hole adapted to a nut inside a cutting disc, and clamping and installing two pads on both sides of the cutting disc that can limit and constrain the grinding disc, and fixing and installing a clamping disc in a positioning state on the outermost sides of the two pads and the grinding disc, when the cutting disc rotates at high speed and shears the anchor chain raw material, the anchor chain raw material located in the inner groove of the sub-clamp and the main clamp can be rotated and sheared under the driving force driven by the rotation of the outer side of the grinding disc, thereby effectively reducing the problem of burrs on the rear end face of the sheared anchor chain raw material.

Description

Technical Field

[0001] The invention relates to the technical field of anchor chain processing, in particular to a ship anchor chain shearing device used for anchor chain production. Background Art

[0002] Anchor chain refers to a special chain that is connected to the anchor and the hull and transmits the anchor holding force. It is usually composed of anchor end links, intermediate links and terminal links. According to the structure of the chain links, anchor chains can be divided into two types: stud anchor chains and studless anchor chains. The former is stronger than the latter, but the former has a more complex structure, while the latter has a simpler structure. At the same time, according to the manufacturing method, anchor chains can be divided into cast steel anchor chains and electric welded anchor chains.

[0003] At present, the raw material metal of ship anchor chains needs to be standardized sheared before processing. During the processing, the shearing port of the anchor chain raw material is easily affected by excessive heat energy during shearing, resulting in many burrs and rough edges. At the same time, when the shearing equipment applies uneven pressure to the shearing part of the anchor chain raw material, it will also cause local bending and deformation of the anchor chain raw material after shearing.

[0004] According to the above, how to reduce the bottom burrs during the shearing of the anchor chain raw material and ensure the integrity of the anchor chain raw material after shearing is the technical difficulty to be solved by the present invention. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is:

[0007] A ship anchor chain shearing device, comprising a supporting mechanism, a tie rod mechanism and a shearing mechanism, wherein the supporting mechanism comprises a base supported on the ground, a bracket installed on the inner side of the base, an outer cover installed on the base, a positioning piece connected to the outer cover, a limit clamp installed at both ends of the positioning piece, a beam plate connected to the outer cover and a base installed on the top of the beam plate, the tie rod mechanism installed on the supporting mechanism comprises a rotating shaft movably installed inside the outer cover, a sub-clamp and a main clamp welded to the outside of the rotating shaft, a guide inclined plate installed on the inner side of the main clamp and a secondary chain connected to the outer end of the rotating shaft, and the shearing mechanism installed on the supporting mechanism comprises a transmission shaft installed on the inner side of the base, a gear shaft installed on the transmission shaft, and a gear shaft connected at both ends of the transmission shaft. A gear part, a cross chain connected to the gear shaft, a ring cutting component connected to the cross chain and away from one end of the gear shaft, and an expansion component installed on the ring cutting component, the ring cutting component includes a first rotating shaft and a second rotating shaft connected to the base, a transmission plate movably installed on the inner ends of the first rotating shaft and the second rotating shaft, a chuck installed in the transmission plate, two pads installed on the inner side of the chuck, a grinding disc inserted in the pad, a nut movably connected inside the pad, and a cutting disc clamped between two adjacent pads, the expansion component includes a scale ruler installed in the first rotating shaft or the second rotating shaft by a nut, a telescopic rod located inside the first rotating shaft or the second rotating shaft, and a mother tube movably installed on the inner ends of two adjacent telescopic rods.

[0008] In a preferred example, the present invention can be further configured as follows: an annular recessed hole recessed inward is provided in the middle of the inner side of the outer cover, and the annular recessed hole in the middle of the inner side of the outer cover is adapted to the guide rod protrusion at the outer end of the rotating shaft.

[0009] By adopting the above technical solution, by opening an annular recessed hole in the middle of the inner side of the outer cover to constrain the rotating shaft, when the rotating shaft performs a circular rotation, the outer cover can maintain the stability of the rotating shaft and the base as a whole.

[0010] In a preferred example, the present invention can be further configured as follows: an inclined groove in an inclined state is provided inside the base, and the inclined groove in the base is adapted to the secondary chain.

[0011] By adopting the above technical solution, by using the inclined groove for constraining the secondary chain on the base, the base can maintain the overall stable operation of the shearing mechanism while ensuring that the rotating shaft is stably driven by the secondary chain.

[0012] In a preferred example, the present invention can be further configured as follows: the outer ends of the sub-clamp and the main clamp are both provided with semicircular buckles, and a gap suitable for the cutting disc and two grinding discs is provided between the sub-clamp and the main clamp.

[0013] By adopting the above technical solution, semicircular ring buckles are opened on the outer ends of the sub-clamp and the main clamp, and the grooves on the inner sides of the sub-clamp and the main clamp are used to limit the anchor chain raw material. When the anchor chain raw material is sheared by the cutting piece, the sub-clamp and the main clamp can apply stabilization protection to the entire anchor chain raw material to prevent it from deformation.

[0014] In a preferred example, the present invention can be further configured as follows: the guide inclined plate is formed by welding a rectangular stainless steel plate and an inclined stainless steel thin plate.

[0015] By adopting the above technical solution, the guide inclined plate is installed in the middle of the inner side of the main clamp. At this time, the top end of the inclined stainless steel sheet on the guide inclined plate will be welded to the outer side of the semicircular ring buckle of another main clamp. At this time, the anchor chain raw material located on the inner side of the main clamp can be effectively protected during shearing.

[0016] In a preferred example, the present invention can be further configured as follows: the gear shaft is composed of a gear and an I-shaped core shaft and two ring-locking shaft discs, and the grooves on the outside of the two ring-locking shaft discs are adapted to the cross chain.

[0017] By adopting the above technical solution, three evenly distributed gear shafts are installed on the outside of the transmission shaft, and the three gear shafts are respectively connected to cross chains to drive the entire ring cutting component in an independent state to rotate, so that the entire ring cutting component in an independent state can achieve the purpose of uniform force.

[0018] In a preferred example, the present invention can be further configured as follows: the first rotating shaft and the second rotating shaft are both composed of a transverse cylinder, an annular gasket and a low-temperature inner nut spirally connected in the annular gasket, and a threaded groove is provided inside the transverse cylinder.

[0019] By adopting the above technical solution, the first rotating shaft and the second rotating shaft are set as an assembled structure, and the first rotating shaft and the second rotating shaft inner transverse cylinder are combined to limit the one end of the telescopic rod, so that the transmission plate, the chuck, the grinding plate, the pad and the cutting plate can be stably rotated and controlled.

[0020] In a preferred example, the present invention can be further configured as follows: the pad is made of a thickened stainless steel circular plate, and the outer side of the pad is provided with arc grooves distributed along the circumference and adapted to the protrusions on the inner side of the grinding disc.

[0021] By adopting the above technical solution, the pad is thickened as a whole, and the outer arc groove is used to limit the grinding disc. When the transmission disc drives the chuck to rotate, the chuck clamps the pad, and the grinding disc can perform circular grinding on the end face of the sheared raw material of the anchor chain.

[0022] By adopting the above technical solution, the beneficial effects achieved by the present invention are:

[0023] 1. In the present invention, as shown above, a circular hole adapted to the nut is opened inside the cutting disc, and two pads that can limit the grinding disc are clamped and installed on both sides of the cutting disc, and a chuck in a positioning state is fixedly installed on the outermost sides of the two pads and the grinding disc. When the cutting disc rotates at high speed and shears the anchor chain raw material, the shear end face of the anchor chain raw material is subjected to annular friction from the outside of the grinding disc and the driving force driven by the rotation of the outside of the grinding disc. At this time, the anchor chain raw material located in the inner grooves of the sub-clamp and the main clamp can be rotationally sheared, thereby effectively reducing the problem of burrs on the rear end face of the sheared anchor chain raw material.

[0024] 2. In the present invention, as shown above, a semicircular groove is provided on the inner side of the outwardly protruding end of the sub-clamp and the main clamp, and the sub-clamp and the main clamp are used to limit the anchor chain raw material in the specification state. When the outer end teeth of the cutting piece contact the anchor chain raw material, it is subjected to the pressure brought by the shearing of the cutting piece. At this time, the grooves on the inner side of the sub-clamp and the main clamp can fully stabilize the anchor chain raw material, thereby effectively reducing the problem of local deformation during the shearing process of the anchor chain raw material.

[0025] 3. In the present invention, as shown above, a mother tube that can be extended or contracted in a horizontal state is provided, and symmetrically distributed telescopic rods are movably installed at both ends of the inner cavity of the mother tube, and a scale for measuring the shearing length gap of the anchor chain raw material is fixedly assembled on the first rotating shaft or the second rotating shaft by a nut. When the inner end pull rod of the telescopic rod is adjusted to expand and move horizontally, the two adjacent cutting blades can perform precise shearing processing on the anchor chain raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of a dispersion of an embodiment of the present invention;

[0028] Figure 3 An embodiment of the present invention Figure 2 A partial cross-sectional schematic diagram of ;

[0029] Figure 4 An embodiment of the present invention Figure 3 Schematic diagram of the internal dispersion of

[0030] Figure 5 An embodiment of the present invention Figure 4 A partial bottom-up schematic diagram of

[0031] Figure 6 An embodiment of the present invention Figure 5 Schematic diagram of the internal dispersion of

[0032] Figure 7 An embodiment of the present invention Figure 6 Schematic diagram of dispersion;

[0033] Figure 8 An embodiment of the present invention Figure 7 Schematic diagram of the internal explosion diagram;

[0034] Fig. 9 An embodiment of the present invention Figure 5 A partial top view of a

[0035] Fig.10 An embodiment of the present invention Fig. 9 Schematic diagram of local dispersion.

[0036] Reference numerals:

[0037] 100, support mechanism; 110, base; 120, bracket; 130, limit clamp; 140, positioning member; 150, outer cover; 160, beam plate; 170, base;

[0038] 200, tie rod mechanism; 210, rotating shaft; 220, secondary chain; 230, sub-clamp; 240, main clamp; 250, guide inclined plate;

[0039] 300, shearing mechanism; 310, transmission shaft; 320, gear shaft; 330, gear member; 340, cross chain; 350, ring cutting assembly; 351, first rotating shaft; 352, second rotating shaft; 353, transmission disc; 354, chuck; 355, grinding disc; 356, pad; 357, nut; 358, cutting disc; 360, expansion assembly; 361, scale ruler; 362, telescopic rod; 363, mother tube. DETAILED DESCRIPTION

[0040] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0041] A ship anchor chain shearing device provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0042] Embodiment 1:

[0043] Combination Figure 1-Figure 10 As shown, the present invention provides a ship anchor chain shearing device for ship anchor chain production, comprising a support mechanism 100, a tie rod mechanism 200 and a shearing mechanism 300, wherein the tie rod mechanism 200 is installed on the support mechanism 100, and the shearing mechanism 300 is connected to the support mechanism 100.

[0044] The supporting mechanism 100 includes a base 110, a bracket 120, a limit clamp 130, a positioning member 140, an outer cover 150, a beam plate 160 and a base 170. The rod restraining mechanism 200 includes a rotating shaft 210, a secondary chain 220, a sub-clamp 230, a main clamp 240 and a guide inclined plate 250. The shearing mechanism 300 includes a transmission shaft 310, a gear shaft 320, a gear member 330, a cross chain 340, a ring cutting assembly 350 and an expansion assembly 360. The ring cutting assembly 350 also includes a first rotating shaft 351, a second rotating shaft 352, a transmission disk 353, a chuck 354, a grinding disc 355, a pad 356, a nut 357 and a cutting disc 358. The expansion assembly 360 also includes a scale ruler 361, a telescopic rod member 362 and a mother tube 363.

[0045] Specifically, the bracket 120 is installed on the inner side of the base 110, the outer cover 150 is installed on the base 110, the positioning member 140 is connected to the outer cover 150, the limit clamp 130 is installed at both ends of the positioning member 140, the beam plate 160 is connected to the outer cover 150, the base 170 is installed on the top of the beam plate 160, the rotating shaft 210 is movably installed inside the outer cover 150, the sub-clamp 230 and the main clamp 240 are welded to the outside of the rotating shaft 210, the guide inclined plate 250 is installed on the inner side of the main clamp 240, the secondary chain 220 is connected to the outer end of the rotating shaft 210, the transmission shaft 310 is installed on the inner side of the base 170, the gear shaft 320 is installed on the transmission shaft 310, the gear member 330 is connected to both ends of the transmission shaft 310, the cross chain 340 is connected to the gear shaft 320, and the ring cutting assembly 35 0 is connected to one end of the cross chain 340, the expansion component 360 is installed on the ring cutting component 350, the first rotating shaft 351 and the second rotating shaft 352 are connected in the base 170, the transmission disk 353 is movably installed on the inner ends of the first rotating shaft 351 and the second rotating shaft 352, the chuck 354 is installed in the transmission disk 353, two pads 356 are installed on the inner side of the chuck 354, the grinding disc 355 is inserted in the pad 356, the nut 357 is movably connected inside the pad 356, the cutting disc 358 is clamped between two adjacent pads 356, the scale ruler 361 is installed in the first rotating shaft 351 or the second rotating shaft 352 by using a nut, the telescopic rod 362 is located inside the first rotating shaft 351 or the second rotating shaft 352, and the mother tube 363 is movably installed on the inner ends of the two adjacent telescopic rods 362.

[0046] The sub-clamp 230 and the main clamp 240 are used to limit the anchor chain raw material in the standard state. When the outer end of the cutting blade 358 contacts the anchor chain raw material, it is subjected to the pressure brought by the shearing of the cutting blade 358. At this time, the grooves inside the sub-clamp 230 and the main clamp 240 can fully stabilize the anchor chain raw material. At the same time, a circular hole suitable for the nut 357 is opened inside the cutting blade 358, and two pads 355 that can limit the grinding blade 355 are clamped and installed on both sides of the cutting blade 358. 6, and the chuck 354 is fixedly installed in a positioning state on the outermost side of the two pads 356 and the grinding disc 355. When the cutting disc 358 rotates at a high speed and shears the anchor chain raw material, the annular friction of the outer side of the grinding disc 355 on the sheared end surface of the anchor chain raw material and the driving force driven by the external rotation of the grinding disc 355 can be used. At this time, the anchor chain raw material located in the inner groove of the sub-clamp 230 and the main clamp 240 can be rotated and sheared, thereby effectively reducing the problem of burrs on the rear end surface of the anchor chain raw material after shearing.

[0047] Embodiment 2:

[0048] Combination Figure 1-Figure 4 As shown, on the basis of embodiment one, an inwardly recessed annular hole is provided in the middle of the inner side of the outer cover 150, and the annular hole in the middle of the inner side of the outer cover 150 is adapted to the guide rod protrusion at the outer end of the rotating shaft 210, and an inclined groove is provided inside the base 170, and the inclined groove inside the base 170 is adapted to the secondary chain 220.

[0049] By opening an annular recessed hole in the middle of the inner side of the outer cover 150 to constrain the rotating shaft 210, when the rotating shaft 210 performs a circular rotation, the outer cover 150 can maintain the overall stability of the rotating shaft 210 and the base 170. At the same time, an inclined groove for constraining the sub-chain 220 is opened in the base 170. When the base 170 maintains the overall stable operation of the shearing mechanism 300, it can ensure that the rotating shaft 210 is stably driven by the sub-chain 220.

[0050] Embodiment three:

[0051] Combination Fig. 9 and Fig.10 As shown, on the basis of Example 1, the outer ends of the sub-clamp 230 and the main clamp 240 are provided with semicircular buckles, and a gap suitable for the cutting blade 358 and the two grinding blades 355 is provided between the sub-clamp 230 and the main clamp 240, and the guide ramp 250 is welded by a rectangular stainless steel plate and an inclined stainless steel thin plate.

[0052] By opening semicircular buckles at the outer ends of the sub-clamp 230 and the main clamp 240, and using the grooves on the inner sides of the sub-clamp 230 and the main clamp 240 to limit the anchor chain raw material, when the anchor chain raw material is sheared by the cutting blade 358, the sub-clamp 230 and the main clamp 240 can apply stabilization protection to the entire anchor chain raw material to prevent it from deformation. At the same time, the guide bevel 250 is installed in the middle of the inner side of the main clamp 240. At this time, the top end of the inclined stainless steel sheet on the guide bevel 250 will be welded to the outer side of the semicircular buckle of another main clamp 240. At this time, the anchor chain raw material located on the inner side of the main clamp 240 can be effectively protected during shearing.

[0053] Embodiment 4:

[0054] Combination Figure 4-Figure 8 As shown, on the basis of Example 1, the gear shaft 320 is composed of a gear and an I-shaped core shaft and two ring-locking shaft disks, and the grooves on the outside of the two ring-locking shaft disks are adapted to the cross chain 340, the first rotating shaft 351 and the second rotating shaft 352 are both composed of a cross cylinder, an annular gasket and a low-temperature internal nut spirally connected in the annular gasket, and a threaded groove is provided inside the cross cylinder, the pad 356 is made of a thickened stainless steel circular plate, and the outer side of the pad 356 is provided with arc grooves distributed along the circumference and adapted to the inner protrusion of the grinding disc 355.

[0055] By using three gear shafts 320 evenly distributed installed on the outside of the transmission shaft 310, and using the three gear shafts 320 to connect the cross chain 340 respectively to drive the ring cutting component 350 in an independent state to rotate as a whole, and combining the first rotating shaft 351 and the second rotating shaft 352 to limit the position of the cross tube on one end of the telescopic rod 362, at the same time, the pad 356 is thickened as a whole, and combined with its outer arc groove to limit the position of the grinding disc 355, when the transmission disc 353 drives the chuck 354 to rotate, the chuck 354 clamps the pad 356 and fixes it. At this time, the grinding disc 355 can perform circumferential grinding on the end face of the sheared raw material of the anchor chain, so that the ring cutting component 350 in an independent state can achieve the purpose of uniform force as a whole, and the transmission disc 353, chuck 354, grinding disc 355, pad 356 and cutting disc 358 can be stably rotated and controlled.

[0056] The working principle and use process of the present invention are as follows: the operator needs to pre-adjust the two telescopic rods 362 movably installed inside the mother tube 363, and control the horizontal flipping and lateral movement of the pull rod at the outer end of the telescopic rod 362 to control the spacing between the two adjacent ring cutting components 350. When the anchor chain raw material needs to be cut according to the specified length, the two ring cutting components 350 with the adjusted spacing width can cut the anchor chain raw material in the conveying state, and then use the external drive chain and servo motor to link the multiple gear shafts 330 installed outside the transmission shaft 310. 20, then close the power supply of the external servo motor, and then adjust the positioning member 140 to rotate in a circle along the outer end cross bar of the outer cover 150, so that the positioning member 140 drives the limiting clamp 130 to realize a circular rotation, until the transverse holes opened at both ends of the limiting clamp 130 are exposed to the external environment, and then dock one end of the anchor chain raw material along the transverse hole at the outer end of the limiting clamp 130, and pass the anchor chain raw material as a whole through the inner side of the sub-clamp 230 and the main clamp 240. At this time, the anchor chain raw material entering the inner side of the sub-clamp 230 and the main clamp 240 will be affected by the main The guide inclined plate 250 on the inner side of the clamp 240 is tilted to provide a sliding guide, and the anchor chain raw material on the inner side of the main clamp 240 can quickly fall into the semi-cylindrical groove on the inner side of the sub-clamp 230 and the main clamp 240. Then the operator needs to start and run the external servo motor. At this time, the servo motor drives the external chain and drives the gear shaft 320 to rotate, and the rotation of the gear shaft 320 will synchronously drive the cross chain 340 and the sub-chain 220. At this time, the clockwise rotation of the sub-chain 220 will penetrate the inner grooves of the sub-clamp 230 and the main clamp 240. The anchor chain raw material in the shear mechanism 300 rotates in a circle. At the same time, the rotation of the cross chain 340 will also drive the transmission plate 353, the clamping plate 354, the grinding disc 355, the pad 356 and the cutting disc 358 to perform a circular cutting operation on the gap between two adjacent main clamps 240 or the gap between the sub-clamp 230 and the main clamp 240. When the anchor chain raw material, which is constrained by the shear mechanism 300 as a whole and distributed in a ring shape, contacts the outer teeth of the cutting disc 358, the constrained anchor chain raw material can be quickly sheared while reducing the appearance of burrs after shearing of the anchor chain raw material.

[0057] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A ship anchor chain cutting device, characterized in that: include: The support mechanism (100) comprises a base (110) supported on the ground, a bracket (120) installed inside the base (110), an outer cover (150) installed on the base (110), a positioning member (140) connected to the outer cover (150), limit clamps (130) installed at both ends of the positioning member (140), a beam plate (160) connected to the outer cover (150), and a base (170) installed on the top of the beam plate (160); A tie rod mechanism (200) mounted on the support mechanism (100), the tie rod mechanism (200) comprising a rotating shaft (210) movably mounted inside the outer cover (150), a sub-clamp (230) and a main clamp (240) welded to the outside of the rotating shaft (210), a guide inclined plate (250) mounted on the inside of the main clamp (240), and a secondary chain (220) connected to the outer end of the rotating shaft (210); A shearing mechanism (300) mounted on a supporting mechanism (100), the shearing mechanism (300) comprising a transmission shaft (310) mounted on the inner side of a base (170), a gear shaft (320) mounted on the transmission shaft (310), a gear member (330) connected to both ends of the transmission shaft (310), a cross chain (340) connected inside the gear shaft (320), a ring cutting assembly (350) connected inside the cross chain (340) and away from one end of the gear shaft (320), and an expansion assembly (360) mounted on the ring cutting assembly (350); The circular cutting assembly (350) comprises a first rotating shaft (351) and a second rotating shaft (352) connected to the base (170), a transmission plate (353) movably mounted on the inner ends of the first rotating shaft (351) and the second rotating shaft (352), a chuck (354) mounted in the transmission plate (353), two pads (356) mounted on the inner side of the chuck (354), a grinding disc (355) inserted in the pad (356), a nut (357) movably connected to the inside of the pad (356), and a cutting disc (358) clamped between two adjacent pads (356); The expansion assembly (360) comprises a scale ruler (361) installed in the first rotating shaft (351) or the second rotating shaft (352) by means of a nut, a telescopic rod (362) located inside the first rotating shaft (351) or the second rotating shaft (352), and a mother tube (363) movably installed on the inner ends of two adjacent telescopic rods (362).

2. The ship anchor chain cutting device according to claim 1, characterized in that: An inwardly recessed annular hole is provided in the middle of the inner side of the outer cover (150), and the annular hole in the middle of the inner side of the outer cover (150) is adapted to fit the guide rod protrusion at the outer end of the rotating shaft (210).

3. The ship anchor chain cutting device according to claim 1, characterized in that: The base (170) is provided with an inclined groove in an inclined state inside, and the inclined groove in the base (170) is adapted to fit the secondary chain (220).

4. The ship anchor chain cutting device according to claim 1, characterized in that: The outer ends of the sub-clamp (230) and the main clamp (240) are both provided with semicircular ring buckles, and a gap adapted for a cutting sheet (358) and two grinding sheets (355) is provided between the sub-clamp (230) and the main clamp (240).

5. The ship anchor chain cutting device according to claim 1, characterized in that: The guide inclined plate (250) is formed by welding a rectangular stainless steel plate and an inclined stainless steel thin plate.

6. The ship anchor chain cutting device according to claim 1, characterized in that: The gear shaft (320) is composed of a gear, an I-shaped core shaft and two buckled shaft discs, and the grooves on the outside of the two buckled shaft discs are adapted to the cross chain (340).

7. The ship anchor chain cutting device according to claim 1, characterized in that: The first rotating shaft (351) and the second rotating shaft (352) are both composed of a transverse cylinder, an annular gasket, and a low-temperature inner nut screwed into the annular gasket, and a threaded groove is provided inside the transverse cylinder.

8. The ship anchor chain cutting device according to claim 1, characterized in that: The pad (356) is made of a thickened stainless steel circular plate, and the outer side of the pad (356) is provided with arc grooves distributed along the circumference and adapted to the inner protrusions of the grinding disc (355).

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