WO2021085209A1 - 連結装置 - Google Patents

連結装置 Download PDF

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Publication number
WO2021085209A1
WO2021085209A1 PCT/JP2020/039234 JP2020039234W WO2021085209A1 WO 2021085209 A1 WO2021085209 A1 WO 2021085209A1 JP 2020039234 W JP2020039234 W JP 2020039234W WO 2021085209 A1 WO2021085209 A1 WO 2021085209A1
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WO
WIPO (PCT)
Prior art keywords
shackle
guide plate
connecting device
hook
chain
Prior art date
Application number
PCT/JP2020/039234
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
田中　智之
Original Assignee
株式会社Ｉｈｉポールワース
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｉｈｉポールワース filed Critical 株式会社Ｉｈｉポールワース
Priority to JP2021553419A priority Critical patent/JP7288516B2/ja
Publication of WO2021085209A1 publication Critical patent/WO2021085209A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B45/00—Hooks; Eyes
    • F16B45/04—Hooks with sliding closing member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
    • F16G15/06—Shackles designed for attachment by joint pins to chain elements, e.g. D-shackles so called harp links; the D-chain links are classified according to the corresponding kind of chain

Definitions

  • the present disclosure relates to a connecting device capable of connecting hooks.
  • This application claims the benefit of priority under Japanese Patent Application No. 2019-97090 filed on October 30, 2019, the contents of which are incorporated herein by reference.
  • a connecting device such as a shackle may be connected between the hook and the object (for example, Patent Document 1).
  • the shackle generally includes a U-shaped shackle body and a shackle pin that connects the ends of the shackle body.
  • the hook is connected to the shackle body, and the object to be lifted is connected to the shackle pin. If the object is not lifted while the hook is connected to the shackle body, the chain or wire rope (hereinafter referred to as the chain, etc.) may bend and the hook may move along the shackle body to the shackle pin side. is there. If the chain or the like is wound while the hook is moved to the shackle pin side, the chain or the like may be twisted when the hook is pulled and returns to the side opposite to the shackle pin. If the chain or the like is pulled in a twisted state, the chain or the like may break.
  • the object of the present disclosure is to provide a connecting device capable of preventing breakage of a chain or the like connected to a hook.
  • the connecting device includes a shackle body having a pair of extending portions extending from each of the curved portion and both ends of the curved portion, and the curved portion and the extending portion.
  • a guide plate is provided, wherein the direction of penetrating the enclosed inner space is the thickness direction, and a guide plate that forms a guide surface that intersects the shackle body is provided on the thickness direction side of the curved portion.
  • the connecting device may be provided with two guide plates, and the guide surfaces of the two guide plates may be arranged so as to be separated from each other and face each other.
  • the connecting device further includes a rod-shaped shackle pin capable of connecting a pair of extending portions to each other, and the guide plate may be connected to the shackle pin.
  • the guide plate may extend from the connecting portion with the shackle pin to both sides of the curved portion on the thickness direction side.
  • the connecting device may further include a washer that is connected between the extending portion of the shackle pin and the guide plate.
  • the guide plate may be formed with a stepped portion that displaces the curved portion side in the axial direction of the shackle pin with respect to the connecting portion side with the shackle pin.
  • the guide plate may be detachable from the shackle body by forming a recessed portion to be hung on the curved portion.
  • FIG. 1 is a partial fracture view showing an outline of a coke oven.
  • FIG. 2 is a partially enlarged view of the vicinity of the air inlet box.
  • FIG. 3 is a side view of the first air inlet box.
  • FIG. 3A shows a state in which the first lid portion is closed.
  • FIG. 3B shows a state in which the first lid portion is open.
  • FIG. 4 is a diagram showing the configuration of the first coupling device.
  • FIG. 4A is a plan view of the first coupling device.
  • FIG. 4B is a side view of the first coupling device.
  • FIG. 5 is a diagram showing the configuration of the guide plate.
  • FIG. 5A is a plan view of the guide plate.
  • FIG. 5B is a side view of the guide plate.
  • FIG. 5A is a plan view of the guide plate.
  • FIG. 5B is a side view of the guide plate.
  • FIG. 6 is a diagram showing the configuration of the second connecting device.
  • FIG. 6A is a plan view of the second connecting device.
  • FIG. 6B is a side view of the second coupling device.
  • FIG. 7 is a diagram showing the configuration of the guide plate.
  • FIG. 7A is a plan view of the guide plate.
  • FIG. 7B is a side view of the guide plate.
  • FIG. 8 is a side view showing a first connecting device including a guide plate extending only on one side surface of the curved portion.
  • FIG. 9 is a diagram showing a first connecting device including a removable guide plate.
  • FIG. 9A is a plan view of the first coupling device.
  • FIG. 9B is a side view of the first coupling device.
  • FIG. 9A is a plan view of the first coupling device.
  • FIG. 10 is a front view showing a first connecting device to which a guide plate is integrally connected.
  • FIG. 11 is a diagram showing another application example of the coupling device.
  • FIG. 11A shows an example applied to lifting a cylindrical member.
  • FIG. 11B shows an example applied to lifting a columnar member.
  • FIG. 11C shows an example applied to lifting a deck member.
  • FIG. 1 is a partial fracture view showing an outline of the coke oven 1.
  • the X direction, the Y direction, and the Z direction are defined as shown in the figure.
  • the X direction is the width direction of the coke oven 1
  • the Y direction is the depth direction of the coke oven 1
  • the Z direction is the height direction of the coke oven 1.
  • the coke oven 1 includes a carbonization chamber 10, a combustion chamber 12, a heat storage chamber 14, an air inlet box 16, and an M gas connection pipe 18.
  • the carbonization chamber 10, the combustion chamber 12, and the heat storage chamber 14 are spaces formed of, for example, refractory bricks.
  • the carbonization chamber 10 is formed so that the cross section perpendicular to the width direction is rectangular.
  • the carbonization chamber 10 has a short length in the depth direction and a long length in the width direction and the height direction.
  • a plurality of carbonization chambers 10 are formed so as to be laminated in the depth direction.
  • Coal which is a raw material for coke, is charged into the carbonization chamber 10.
  • Combustion chambers 12 are formed on both sides in the depth direction with the carbonization chamber 10 in between.
  • the combustion chamber 12 is formed in a pair of tubular shapes extending in the height direction and having vertical upper ends communicating with each other.
  • a plurality of combustion chambers 12 are arranged in the width direction on the side of the carbonization chamber 10.
  • the combustion chambers 12, separated by the carbonization chambers 10 and arranged in the width direction, function in groups of 1.
  • the combustion chamber 12 within the range separated by the carbonization chamber 10 may be referred to as a combustion group.
  • the heat storage chamber 14 is formed vertically below the combustion chamber 12 and the carbonization chamber 10.
  • the heat storage chamber 14 includes a trunk 20 and a branch 22.
  • the cadre 20 is provided for each combustion group and extends in the width direction.
  • the branch portion 22 is provided for each combustion chamber 12.
  • the vertical lower portion of the branch portion 22 communicates with the trunk portion 20, and the vertical upper portion of the branch portion 22 communicates with the vertical lower end of the combustion chamber 12.
  • the air inlet box 16 is provided for each combustion group.
  • the air inlet box 16 communicates with the executive 20 of the heat storage chamber 14. As will be described later, the air inlet box 16 can introduce air into the heat storage chamber 14 from outside the coke oven 1. The air introduced into the heat storage chamber 14 is sent to the combustion chamber 12.
  • the M gas connection pipe 18 communicates with the air inlet box 16.
  • the M gas connection pipe 18 can introduce a mixed gas, which is a combustion gas, into the heat storage chamber 14 through the air inlet box 16.
  • the mixed gas introduced into the heat storage chamber 14 is sent to the combustion chamber 12.
  • the combustion chamber 12 heat is generated by burning the mixed gas together with air.
  • the heat generated in the combustion chamber 12 heats the coal in the carbonization chamber 10 to cause a chemical reaction.
  • coke is generated in the carbonization chamber 10.
  • the heat storage chamber 14 stores the heat generated in the combustion chamber 12 and maintains the generation of coke in the carbonization chamber 10.
  • FIG. 2 is a partially enlarged view of the vicinity of the air inlet box 16.
  • a plurality of sets of air inlet boxes 16 are provided, with four types as one set.
  • FIG. 2 shows one set of air inlet boxes 16, and the first air inlet box 16a, the second air inlet box 16b, the third air inlet box 16c, and the fourth air inlet box 16d are shown in this order from the right.
  • the air inlet box 16 includes a hollow box main body 30 that communicates with the heat storage chamber 14.
  • the box body 30 of the first air inlet box 16a is formed with a first opening that communicates the inside and outside of the box body 30.
  • a first lid portion 32a capable of opening and closing the first opening is connected to the box main body portion 30.
  • a rotation shaft extending in the horizontal direction is connected to one side of the first lid portion 32a located vertically above.
  • the first lid portion 32a is rotatably supported by the box main body portion 30 via the rotation shaft.
  • the first lid portion 32a is formed with a second opening that communicates the inside and outside of the box main body portion 30.
  • a second lid portion 32b capable of opening and closing the second opening is connected to the first lid portion 32a.
  • a rotation shaft extending in the horizontal direction is connected to one side of the second lid portion 32b located vertically above.
  • the second lid portion 32b is rotatably supported by the first lid portion 32a via the rotation shaft.
  • the area of the second lid portion 32b is smaller than the area of the first lid portion 32a.
  • the box body 30 of the second air inlet box 16b is formed with a third opening that communicates the inside and outside of the box body 30.
  • a third lid portion 32c capable of opening and closing the third opening is connected to the box main body portion 30.
  • a rotation shaft extending in the horizontal direction is connected to one side of the third lid portion 32c located vertically above.
  • the third lid portion 32c is rotatably supported by the box body portion 30 via the rotation shaft.
  • the area of the third lid portion 32c is approximately equal to the area of the second lid portion 32b.
  • the M gas connecting pipe 18 communicates with the box main body 30 of the second air inlet box 16b.
  • the box body 30 of the third air inlet box 16c is formed with a fourth opening that communicates the inside and outside of the box body 30.
  • a fourth lid portion 32d capable of opening and closing the fourth opening is connected to the box main body portion 30.
  • a rotation shaft extending in the horizontal direction is connected to one side of the fourth lid portion 32d located vertically above.
  • the fourth lid portion 32d is rotatably supported by the box main body portion 30 via the rotation shaft.
  • the area of the fourth lid portion 32d is approximately equal to the area of the first lid portion 32a.
  • the fourth lid portion 32d is formed with a fifth opening that communicates the inside and outside of the box main body portion 30.
  • a fifth lid portion 32e capable of opening and closing the fifth opening is connected to the fourth lid portion 32d.
  • a rotation shaft extending in the horizontal direction is connected to one side of the fifth lid portion 32e located vertically above.
  • the fifth lid portion 32e is rotatably supported by the fourth lid portion 32d via the rotation shaft.
  • the area of the fifth lid portion 32e is smaller than the area of the fourth lid portion 32d and larger than the area of the second lid portion 32b and the third lid portion 32c.
  • the box body 30 of the fourth air inlet box 16d is formed with a sixth opening that communicates the inside and outside of the box body 30.
  • a sixth lid portion 32f capable of opening and closing the sixth opening is connected to the box main body portion 30.
  • a rotation shaft extending in the horizontal direction is connected to one side of the sixth lid portion 32f located vertically above.
  • the sixth lid portion 32f is rotatably supported by the box main body portion 30 via the rotation shaft.
  • the area of the sixth lid portion 32f is approximately equal to the area of the fifth lid portion 32e.
  • the M gas connecting pipe 18 communicates with the box main body 30 of the fourth air inlet box 16d.
  • the first shaft 40a, the second shaft 40b, the third shaft 40c, the fourth shaft 40d, the first winding portion 42a, the second winding portion 42b, the third winding portion 42c and the fourth A winding portion 42d is provided.
  • the first shaft 40a, the second shaft 40b, the third shaft 40c, and the fourth shaft 40d may be collectively referred to as a shaft.
  • Each shaft extends in the parallel direction of the air inlet box 16.
  • a drive device 44 such as a motor is connected to one end of each shaft. The drive device 44 rotates the shaft 40 about an axis.
  • the first winding portion 42a is connected to the first shaft 40a vertically above the first air inlet box 16a.
  • a first chain 50a whose one end is suspended vertically downward is wound around the first winding portion 42a.
  • the first winding portion 42a winds and feeds the first chain 50a according to the rotation of the first shaft 40a.
  • the second winding portion 42b is connected to the second shaft 40b vertically above the first air inlet box 16a and the second air inlet box 16b.
  • a second chain 50b whose one end is suspended vertically downward is wound around the second winding portion 42b.
  • the second winding portion 42b winds and feeds the second chain 50b according to the rotation of the second shaft 40b.
  • the third winding portion 42c is connected to the third shaft 40c vertically above the third air inlet box 16c.
  • a third chain 50c whose one end is suspended vertically downward is wound around the third winding portion 42c.
  • the third winding unit 42c winds up and feeds out the third chain 50c according to the rotation of the third shaft 40c.
  • the fourth hoisting portion 42d is connected to the fourth shaft 40d vertically above the third air inlet box 16c and the fourth air inlet box 16d.
  • a fourth chain 50d whose one end is suspended vertically downward is wound around the fourth winding portion 42d.
  • the fourth hoisting unit 42d winds up and feeds the fourth chain 50d according to the rotation of the fourth shaft 40d.
  • first chain 50a, the second chain 50b, the third chain 50c, and the fourth chain 50d may be collectively referred to as a chain.
  • the suspended tip side of the chain is bifurcated.
  • a hook 52 is connected to each of the branched tips in the chain.
  • a wire rope may be connected to the hook 52 instead of the chain.
  • chains or wire ropes may be collectively referred to as chains or the like.
  • the eye plate 54 is formed, for example, in the shape of a triangular flat plate.
  • the eye plate 54 is connected so as to stand vertically to the first lid portion 32a.
  • the eye plate 54 is formed with a connecting hole that penetrates the eye plate 54.
  • Each of the eye plates 54 of the first lid portion 32a is connected to the first connecting device 56a via a connecting hole.
  • One hook 52 of the first chain 50a is connected to one eye plate 54 of the first lid portion 32a via the first connecting device 56a.
  • the other hook 52 of the first chain 50a is connected to the other eye plate 54 of the first lid portion 32a via the first connecting device 56a.
  • the first coupling device 56a will be described in detail later.
  • the first connecting device 56a and the eye plate 54 are lifted through the hook 52. Then, the first lid portion 32a rotates about the rotation axis located on the vertically upper side by moving the eye plate 54 side vertically upward. As a result, the first lid portion 32a opens. Further, when the first winding portion 42a sends out the first chain 50a, the eye plate 54 moves vertically downward due to the weight of the first lid portion 32a. As a result, the first lid portion 32a is closed.
  • the second lid portion 32b is provided with a first arm portion 58a that projects toward the second air inlet box 16b side.
  • the eye plate 54 is connected to the first arm portion 58a so as to stand vertically to the first arm portion 58a.
  • the third lid portion 32c is provided with a second arm portion 58b that projects toward the first air inlet box 16a side.
  • the eye plate 54 is connected to the second arm portion 58b so as to stand vertically to the second arm portion 58b.
  • the eye plate 54 of the first arm portion 58a is connected to the second connecting device 56b via a connecting hole. Further, the eye plate 54 of the second arm portion 58b is connected to the second connecting device 56b via the connecting hole.
  • One hook 52 of the second chain 50b is connected to the eye plate 54 of the first arm portion 58a via the second connecting device 56b.
  • the other hook 52 of the second chain 50b is connected to the eye plate 54 of the second arm portion 58b via the second connecting device 56b.
  • the second coupling device 56b will be described in detail later.
  • Two eye plates 54 are provided on the fourth lid portion 32d.
  • the eye plate 54 is connected so as to stand vertically to the fourth lid portion.
  • a first connecting device 56a is connected to each of the eye plates 54 of the fourth lid portion 32d.
  • One hook 52 of the third chain 50c is connected to one eye plate 54 of the fourth lid portion 32d via the first connecting device 56a.
  • the other hook 52 of the third chain 50c is connected to the other eye plate 54 of the fourth lid portion 32d via the first connecting device 56a.
  • the fourth lid portion 32d rotates about the rotation axis located on the vertically upper side by moving the eye plate 54 side vertically upward. As a result, the fourth lid portion 32d opens. Further, when the third winding portion 42c sends out the third chain 50c, the eye plate 54 moves vertically downward due to the weight of the fourth lid portion 32d. As a result, the fourth lid portion 32d is closed.
  • the fifth lid portion 32e is provided with a third arm portion 58c that projects toward the fourth air inlet box 16d side.
  • the eye plate 54 is connected to the third arm portion 58c so as to stand vertically to the third arm portion 58c.
  • the sixth lid portion 32f is provided with a fourth arm portion 58d that projects toward the third air inlet box 16c side.
  • An eye plate 54 is connected to the fourth arm portion 58d so as to stand vertically to the fourth arm portion 58d.
  • the eye plate 54 of the third arm portion 58c is connected to the second connecting device 56b via the connecting hole.
  • the eye plate 54 of the fourth arm portion 58d is connected to the second connecting device 56b via the connecting hole.
  • One hook 52 of the fourth chain 50d is connected to the eye plate 54 of the third arm portion 58c via the second connecting device 56b.
  • the other hook 52 of the fourth chain 50d is connected to the eye plate 54 of the fourth arm portion 58d via the second connecting device 56b.
  • the eye plate 54 of the third arm portion 58c moves vertically downward due to the weight of the fifth lid portion 32e
  • the eye plate 54 of the fourth arm portion 58d Moves vertically downward due to the weight of the sixth lid portion 32f.
  • the fifth lid portion 32e and the sixth lid portion 32f are closed.
  • FIG. 3 is a side view of the first air inlet box 16a.
  • FIG. 3A shows a state in which the first lid portion 32a is closed.
  • FIG. 3B shows a state in which the first lid portion 32a is open.
  • the box body 30 and the furnace wall 60 are shown in cross section.
  • the first chain 50a is bent in a state where the hook 52 of the first chain 50a is connected to the first connecting device 56a, and the hook 52 of the second chain 50b is connected to the second connecting device 56b.
  • the second chain 50b bends in this state.
  • the first lid portion 32a is open with the second lid portion 32b closed.
  • air is introduced into the first air inlet box 16a from the outside of the first air inlet box 16a through the first opening.
  • the introduced air is sent to the heat storage chamber 14 and then to the combustion chamber 12.
  • the lid to be opened and closed in the air inlet box 16 is switched according to the type of gas to be burned and the amount of combustion.
  • the amount of air sent to the combustion chamber 12 can be controlled. That is, if the first lid portion 32a is opened, the amount of air introduced into the combustion chamber 12 can be increased, and if the first lid portion 32a is closed and the second lid portion 32b is opened, the amount of air introduced into the combustion chamber 12 can be increased. The amount can be reduced.
  • the first connecting device 56a and the second connecting device 56b are connecting devices according to the present embodiment.
  • the first coupling device 56a and the second coupling device 56b may be collectively referred to as a coupling device.
  • FIG. 4 is a diagram showing the configuration of the first connecting device 56a.
  • FIG. 4A is a plan view of the first connecting device 56a.
  • FIG. 4B is a side view of the first connecting device 56a.
  • the first connecting device 56a includes a shackle body 100, a shackle pin 102, a nut 104, a guide plate 106, and a washer 108.
  • the shackle body 100 has a curved portion 110 and an extending portion 112.
  • the curved portion 110 is a portion formed by bending a rod-shaped member such as a cylinder.
  • the curved portion 110 is curved in a semicircular ring shape, for example.
  • the extending portion 112 is a portion that extends linearly from both ends of the curved portion 110.
  • the extending portion 112 forms a pair on one end side and the other end side of the curved portion 110. That is, the shackle body 100 is formed in a U shape.
  • the shackle body 100 is made of, for example, a metal material. Through holes 114 are formed in each of the extending portions 112 of the shackle body 100 so as to penetrate coaxially.
  • the shackle pin 102 is formed in a rod shape like a cylinder and extends linearly in the axial direction.
  • the shackle pin 102 is made of, for example, a metal material.
  • a head 116 protruding in the radial direction is provided at one end of the shackle pin 102.
  • the outer diameter of the head 116 is larger than the hole diameter of the through hole 114.
  • a screw groove is formed on the outer peripheral surface of the other end of the shackle pin 102.
  • the shackle pin 102 can be commonly inserted into the through hole 114 of both extending portions 112.
  • the tip of the shackle pin 102 opposite to the head 116 projects to the outside of the shackle body 100.
  • the nut 104 is screwed into the thread groove at the tip of the shackle pin 102 projecting to the outside of the shackle body 100. That is, the shackle pin 102 can connect the pair of extending portions 112 of the shackle body 100 to each other.
  • the shackle pin 102 can be inserted into the connecting hole of the eye plate 54.
  • the shackle pin 102 is inserted into the through hole 114 of the shackle body 100, it is also inserted into the connecting hole of the eye plate 54. That is, the eye plate 54 is connected to the shackle pin 102 when the shackle body 100 and the shackle pin 102 are connected.
  • the shackle body 100 is formed in a U shape, a space is formed inside surrounded by the curved portion 110 and the pair of extending portions 112. Hereinafter, this space may be referred to as a clear portion 118. Further, the direction of penetrating the inner space (that is, the clear portion 118) surrounded by the curved portion 110 and the pair of extending portions 112 is called the thickness direction of the curved portion 110 (in other words, the shackle body 100). In some cases.
  • the direction of penetrating the clear portion 118 is the direction of penetrating the paper surface in FIG. 4A and the substantially left-right direction in FIG. 4B. When the shackle body 100 and the shackle pin 102 are connected, the clear portion 118 is an inner space surrounded by the curved portion 110, the extending portion 112, and the shackle pin 102.
  • the hook 52 includes a hook body 120 and a latch portion 122.
  • the hook body 120 is formed in a hook shape.
  • the latch portion 122 is connected to the base end portion of the hook main body 120 and extends toward the tip end portion of the hook main body 120.
  • the latch portion 122 can be opened and closed between the base end portion and the tip end portion of the hook main body 120.
  • the chain is connected to the base end portion of the hook main body 120.
  • the hook body 120 of the hook 52 is connected to the curved portion 110 of the shackle body 100. When the hook body 120 is connected to the shackle body 100, the latch portion 122 closes between the base end portion and the tip end portion of the hook body 120.
  • FIG. 5 is a diagram showing the configuration of the guide plate 106.
  • FIG. 5A is a plan view of the guide plate 106.
  • FIG. 5B is a side view of the guide plate 106.
  • the guide plate 106 is formed in a substantially rectangular flat plate shape.
  • the guide plate 106 is made of, for example, a metal material.
  • a through hole 132 penetrating the guide plate 106 is formed in the connecting portion 130 located on the base end side of the guide plate 106.
  • the inner diameter of the through hole 132 is approximately equal to the inner diameter of the through hole 114 of the shackle body 100.
  • a shackle pin 102 is inserted through the through hole 132. That is, the guide plate 106 is connected to the shackle pin 102 by inserting the shackle pin 102 into the through hole 132.
  • a recess 134 and a protrusion 136 are formed on the side of the guide plate 106 opposite to the connecting portion 130.
  • the recessed portion 134 is located at the center of the guide plate 106 in the width direction (that is, in the vertical direction of FIG. 5A), and is recessed toward the connecting portion 130 relative to the protruding portion 136.
  • the protruding portions 136 are located on both edge sides in the width direction of the guide plate 106, and extend to the side opposite to the connecting portion 130 relative to the recessed portion 134.
  • the separation distance between the protrusions 136 (that is, the width of the recess 134) is slightly longer than the thickness of the curved portion 110.
  • the surface of the protrusion 136 located in the thickness direction of the guide plate 106 functions as the guide surface 138.
  • the guide surface 138 will be described later.
  • the guide plate 106 is arranged in the clear portion 118. Further, in the guide plate 106, the connecting portion 130 side is arranged on the extending portion 112 side, and the protruding portion 136 side is arranged on the curved portion 110 side.
  • the recessed portion 134 of the guide plate 106 is located inside the curved portion 110. Further, in this state, the protruding portions 136 of the guide plate 106 extend to both sides of the curved portion 110 on the thickness direction side, avoiding the curved portion 110. The protruding portion 136 of the guide plate 106 extends outward from the arc outside the curved portion 110.
  • the guide surface 138 of the protruding portion 136 intersects the shackle main body 100 perpendicularly on the thickness direction side of the curved portion 110.
  • the guide surface 138 is not limited to intersecting the shackle body 100 perpendicularly, and may intersect the shackle body 100 diagonally on the thickness direction side of the curved portion 110.
  • two guide plates 106 are connected to the shackle pin 102.
  • the two guide plates 106 are arranged symmetrically with the eye plate 54 in between.
  • the two guide plates 106 are arranged so that their guide surfaces 138 are separated from each other and face each other.
  • the separation distance between the guide surfaces 138 is set to be equal to or greater than the thickness of the hook body 120.
  • the washer 108 is formed in the shape of an annular flat plate.
  • the inner diameter of the washer 108 is approximately equal to the inner diameter of the through hole 132 of the guide plate 106.
  • the washer 108 is connected between the extending portion 112 of the shackle pin 102 and the guide plate 106.
  • the washer 108 regulates the axial movement of the shackle pin 102 on the guide plate 106.
  • the shackle body 100, the shackle pin 102, the guide plate 106, the washer 108, and the eye plate 54 are connected to each other. After that, the hook 52 is connected to the curved portion 110 of the shackle body 100. At this time, the hook 52 is connected between the two guide plates 106 in the curved portion 110.
  • the hook 52 is connected to a connecting device (so-called normal shackle) without the guide plate 106 and the washer 108.
  • a connecting device so-called normal shackle
  • the hook 52 may move toward the shackle pin 102 along the length of the shackle body 100.
  • the chain may be wound while the hook 52 is moved to the shackle pin 102 side, the chain may be twisted when the hook 52 is pulled and returns to the side opposite to the shackle pin 102. If the chain is pulled in a twisted state, the chain may break.
  • the guide plate 106 is provided, and the hook 52 is located between the guide plates 106.
  • the movement of the connected hook 52 along the length of the shackle body 100 is restricted by the guide surface 138 of the protrusion 136 of the guide plate 106. That is, the first connecting device 56a can prevent the hook 52 from moving along the length of the shackle body 100 even if the chain is bent while the hook 52 is connected to the shackle body 100.
  • the first connecting device 56a even if the chain is wound up and the hook 52 is pulled, the connected hook 52 is always located at the curved portion 110, so that the twisting of the chain can be suppressed. As a result, the first connecting device 56a can prevent the chain from breaking.
  • FIG. 6 is a diagram showing the configuration of the second connecting device 56b.
  • FIG. 6A is a plan view of the second connecting device 56b.
  • FIG. 6B is a side view of the second connecting device 56b.
  • the second connecting device 56b includes a shackle body 200, a shackle pin 202, a nut 204, a guide plate 206, and a washer 208.
  • the shackle body 200 is an overall smaller size of the shackle body 100 of the first connecting device 56a. Therefore, the shape of the shackle body 200 is the same as that of the shackle body 100. Like the shackle body 100, the shackle body 200 has a curved portion 210 and an extending portion 212, and a through hole 214 is formed in the extending portion 212.
  • the shackle pin 202 is an overall smaller size of the shackle pin 102 of the first connecting device 56a. Similar to the shackle pin 102, the shackle pin 202 has a head portion 216 formed at one end and a screw groove formed on the outer peripheral surface of the other end. The shackle pin 202 is inserted into the through hole 214 of the shackle body 200, and the nut 204 is screwed into the shackle pin 202.
  • the shackle pin 202 When the shackle pin 202 is inserted into the through hole 214 of the shackle body 200, it is also inserted into the connecting hole of the eye plate 54.
  • a space that is, a clear portion 218, is formed inside the curved portion 210 and the pair of extending portions 212. Further, the direction of penetrating the clear portion 218 may be referred to as the thickness direction of the curved portion 210 (in other words, the shackle body 200). The hook 52 is connected to the curved portion 210.
  • FIG. 7 is a diagram showing the configuration of the guide plate 206.
  • FIG. 7A is a plan view of the guide plate 206.
  • FIG. 7B is a side view of the guide plate 206.
  • the guide plate 206 is formed in a substantially rectangular flat plate shape.
  • the guide plate 206 is made of, for example, a metal material.
  • a through hole 232 penetrating the guide plate 206 is formed in the connecting portion 230 located on the base end side of the guide plate 206.
  • the inner diameter of the through hole 232 is approximately equal to the inner diameter of the through hole 214.
  • a shackle pin 202 is inserted through the through hole 232. That is, the guide plate 206 is connected to the shackle pin 202 by inserting the shackle pin 202 into the through hole 232.
  • a recessed portion 234 and a protruding portion 236 are formed on the side of the guide plate 206 opposite to the connecting portion 230.
  • the recessed portion 234 is located at the center of the guide plate 206 in the width direction (vertical direction in FIG. 7A), and is recessed toward the connecting portion 230 relative to the protruding portion 236.
  • the protrusions 236 are located on both edges of the guide plate 206 in the width direction, and extend to the side opposite to the connecting portion 230 relative to the recessed portion 234.
  • the separation distance between the protrusions 236 (that is, the width of the recess 234) is slightly longer than the thickness of the curved portion 210.
  • the surface of the protrusion 236 located in the thickness direction of the guide plate 206 (that is, the vertical direction in FIG. 7B) functions as the guide surface 238.
  • the guide surface 238 will be described later.
  • the guide plate 206 is formed with a stepped portion 240 at the protruding portion 236.
  • the step portion 240 displaces the tip end side of the protruding portion 236 of the guide plate 206 in the thickness direction of the guide plate 206 (vertical direction in FIG. 7B) with respect to the connecting portion 230 side.
  • the amount of displacement in the step portion 240 is, for example, equal to or greater than the thickness of the guide plate 206.
  • the guide plate 206 is arranged on the clear portion 218. Further, in the guide plate 206, the connecting portion 230 side is arranged on the extending portion 212 side, and the protruding portion 236 side is arranged on the curved portion 210 side.
  • the guide plate 206 is arranged so that the tip end side of the protruding portion 236 is located outside the width direction (that is, the left-right direction of FIG. 6A) of the shackle main body 200 relative to the connecting portion 230 side. That is, the step portion 240 displaces the curved portion 210 side (in other words, the tip end side of the protruding portion 236) with respect to the connecting portion 230 side of the guide plate 206 in the axial direction of the shackle pin 202.
  • the recessed portion 234 and the stepped portion 240 of the guide plate 206 are located inside the curved portion 210. Further, in this state, the protruding portions 236 of the guide plate 206 extend to both sides of the curved portion 210 on the thickness direction side, avoiding the curved portion 210. The protruding portion 236 of the guide plate 206 extends outward from the outer arc of the curved portion 210.
  • the guide surface 238 of the protruding portion 236 intersects the shackle body 200 perpendicularly on the thickness direction side of the curved portion 210.
  • the guide surface 238 may intersect the shackle body 200 diagonally on the thickness direction side of the curved portion 210.
  • Two guide plates 206 are connected to the shackle pin 202.
  • the two guide plates 206 are arranged symmetrically with the eye plate 54 in between.
  • the two guide plates 206 are arranged so that their guide surfaces 238 are separated from each other and face each other.
  • the separation distance between the guide surfaces 238 located on the tip side of the protrusion 236 with respect to the step portion 240 is set to be equal to or greater than the thickness of the hook main body 120.
  • the washer 208 is connected between the shackle body 200 and the guide plate 206 on the shackle pin 202.
  • the washer 208 regulates the axial movement of the shackle pin 202 on the guide plate 206.
  • the hook 52 is connected between the two guide plates 206 in the curved portion 210.
  • the step portion 240 is formed on the guide plate 206 so that the separation distance between the guide surfaces 238 is equal to or larger than the thickness of the hook main body 120. Therefore, in the second connecting device 56b, the hook 52 can be connected between the guide plates 206 even if the size of the shackle main body 200 is small.
  • the movement of the connected hook 52 along the length of the shackle body 200 is regulated by the guide surface 238 of the protrusion 236 of the guide plate 206. That is, the second connecting device 56b moves along the length of the shackle main body 200 of the hook 52 even if the chain is bent while the hook 52 is connected to the shackle main body 200, similarly to the first connecting device 56a. Can be prevented.
  • the second connecting device 56b similarly to the first connecting device 56a, even if the chain is wound up and the hook 52 is pulled, the connected hook 52 is always located at the curved portion 210, so that the chain can be connected. Twisting can be suppressed. As a result, the second connecting device 56b can prevent the chain from breaking.
  • the connecting device of the present embodiment (specifically, the first connecting device 56a and the second connecting device 56b) is a shackle on the thickness direction side of the curved portions 110 and 210 of the shackle bodies 100 and 200.
  • the guide plates 106 and 206 forming the guide surfaces 138 and 238 intersecting the main bodies 100 and 200 are provided. Therefore, the connecting device of the present embodiment can prevent the hook 52 connected to the shackle bodies 100 and 200 from being moved along the length of the shackle bodies 100 and 200. As a result, the connecting device of the present embodiment can suppress twisting of the chain or the like connected to the hook 52.
  • the connecting device of the present embodiment since the movement of the hooks 52 along the lengths of the shackle bodies 100 and 200 is restricted, it is not necessary for the worker to monitor and correct the connecting state of the hooks 52. Therefore, in the connecting device of the present embodiment, it is possible to omit a worker who monitors and corrects the connecting state of the hook 52.
  • the guide surfaces 138 and 238 of the two guide plates 106 and 206 are arranged so as to be separated from each other and face each other.
  • the connecting device of the present embodiment can restrict the movement of the shackle bodies 100 and 200 on the hook 52 in both directions along the length of the shackle bodies 100 and 200. Therefore, the connecting device of the present embodiment can more reliably prevent the chain from breaking.
  • the number of guide plates 106 and 206 of the connecting device is not limited to two, and may be one. In this aspect, movement of the hook 52 in at least one direction along the length of the shackle bodies 100, 200 can be restricted.
  • the guide plates 106 and 206 are connected to the shackle pins 102 and 202.
  • ready-made products can be used for the shackle main bodies 100 and 200 and the shackle pins 102 and 202, and the connecting device can be easily configured.
  • the guide plates 106 and 206 are integrally molded with the shackle bodies 100 and 200, and the guide surfaces intersecting the shackle bodies 100 and 200 on the thickness direction side of the curved portions 110 and 210. 138 and 238 may be formed.
  • the guide plates 106 and 206 of the connecting device of the present embodiment extend from the connecting portions 130 and 230 with the shackle pins 102 and 202 to both sides of the curved portions 110 and 210 on the thickness direction side. Therefore, the connecting device of the present embodiment can surely regulate the movement of the shackle bodies 100 and 200 on the hook 52 along the length.
  • the guide plates 106 and 206 are not limited to the modes extending on both sides of the curved portions 110 and 210 on the thickness direction side.
  • the guide plates 106 and 206 may extend only to one side of the curved portions 110 and 210 on the thickness direction side.
  • FIG. 8 is a side view showing the first connecting device 356a including the guide plate 306 extending only on one side of the curved portion 110 on the thickness direction side.
  • the protruding portion 336 of the guide plate 306 is formed only on one edge side in the width direction of the guide plate 306. Further, the protruding portion 336 is located on the side opposite to the tip of the hook main body 120.
  • a guide surface 338 that intersects the shackle body 100 is formed on the thickness direction side of the curved portion 110. Therefore, even in this modification, the movement of the hook 52 along the length of the shackle body 100 can be restricted.
  • washers 108 and 208 are provided between the extending portions 112 and 212 of the shackle pins 102 and 202 and the guide plates 106 and 206.
  • the gap between the shackle bodies 100 and 200 and the guide plates 106 and 206 is filled with the washers 108 and 208. Therefore, the connecting device of the present embodiment can restrict the movement of the guide plates 106 and 206 and fix the positions of the guide surfaces 138 and 238.
  • the curved portion 210 side (the tip end side of the protruding portion 236) is displaced in the axial direction of the shackle pin 202 with respect to the connecting portion 230 side with the shackle pin 202.
  • a stepped portion 240 is formed.
  • the shackle body 200 having a large size may be used.
  • the guide plate 206 may be formed with a step portion 240 that displaces the hook 52 side toward the center side in the width direction of the shackle body 200 with respect to the eye plate 54 side.
  • the guide plates 106, 206, and 306 are connected to the shackle pins 102 and 202.
  • the guide plates 106, 206, and 306 may be detachably attached to the shackle bodies 100 and 200.
  • FIG. 9 is a diagram showing a first connecting device 456a including a removable guide plate 406.
  • FIG. 9A is a plan view of the first connecting device 456a.
  • FIG. 9B is a side view of the first connecting device 456a.
  • the guide plate 406 is formed in a substantially rectangular flat plate shape.
  • the guide plate 406 is formed with a recessed portion 434 that is recessed from one side to the other in the width direction.
  • the guide plate 406 functions as a guide surface 438 around the recessed portion 434.
  • the recessed portion 434 has a width and a depth that can be hung on the curved portion 110.
  • the guide plate 406 is inserted in the thickness direction of the shackle body 100 and attached to the curved portion 110 as shown by the white arrow in FIG. 9B. Further, the guide plate 406 is attached to each of both sides of the hook 52.
  • the guide plate 406 may fill the gap between the eye plate 54 and the extending portion 112 by partially increasing the thickness of the shackle pin 102 side of the recessed portion 434.
  • the guide plate 406 can be easily provided even when the shackle body 100 and the shackle pin 102 are connected to the eye plate 54.
  • the guide plates 406 on both sides of the hook 52 may be integrally connected.
  • FIG. 10 is a front view showing the first connecting device 556a to which the guide plate 406 is integrally connected. As shown in FIG. 10, the two guide plates 406 are connected by a connecting portion 550.
  • the connecting portion 550 is provided on the side of the guide plate 406 opposite to the side on which the recessed portion 434 is formed. Further, the connecting portion 550 is formed in an arch shape and does not come into contact with the connected hook 52.
  • the two guide plates 406 are detachably attached together. Therefore, in this modified example, the guide plate 406 can be easily attached and detached.
  • the coupling device of the above embodiment and the modified example has given an example of being applied to the coke oven 1.
  • the coupling device is not limited to the example applied to the coke oven, and may be applied to, for example, the lifting work of an object at a construction site, a manufacturing site, or the like.
  • FIG. 11 is a diagram showing another application example of the coupling device.
  • FIG. 11A shows an example applied to lifting the cylindrical member 610.
  • FIG. 11B shows an example applied to lifting the columnar member 620.
  • FIG. 11C shows an example applied to lifting the deck member 630.
  • a suspension piece 640 is provided along the circumference at the upper end of the cylindrical member 610. Further, as shown in FIG. 11B, a suspension piece 640 is provided on the outer periphery of the columnar member 620. Further, as shown in FIG. 11C, a suspension piece 640 is provided on the edge of the deck member 630.
  • a connecting device for example, a first connecting device 56a
  • a hook 52 is connected to the connecting device.
  • the coupling device can regulate the movement of the hook 52 by a guide plate 106 (not shown). Therefore, even in the lifting of a general heavy object as illustrated in FIGS. 11A to 11C, twisting of the chain or the like connected to the hook 52 can be suppressed, and breakage of the chain or the like can be prevented.
  • the present disclosure can be used for a connecting device capable of connecting hooks.
  • Hook 56a First connecting device 56b: Second connecting device 100
  • 200 Shackle body 102
  • 202 Shackle pin 106
  • 206 Guide plate 108
  • 208 Washer 110
  • 210 Curved part 112
  • 212 Extended Part 138
  • 238 Guide surface 240: Step part

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Load-Engaging Elements For Cranes (AREA)
PCT/JP2020/039234 2019-10-30 2020-10-19 連結装置 WO2021085209A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021553419A JP7288516B2 (ja) 2019-10-30 2020-10-19 連結装置

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Application Number Priority Date Filing Date Title
JP2019-197090 2019-10-30
JP2019197090 2019-10-30

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WO2021085209A1 true WO2021085209A1 (ja) 2021-05-06

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Country Link
JP (1) JP7288516B2 (enrdf_load_stackoverflow)
TW (1) TW202120420A (enrdf_load_stackoverflow)
WO (1) WO2021085209A1 (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106493U (enrdf_load_stackoverflow) * 1980-12-22 1982-06-30
JP2001208033A (ja) * 2000-01-21 2001-08-03 Masaaki Mizuta シャックル状吊具
US6282879B1 (en) * 1999-08-06 2001-09-04 Kong S.P.A. Shackle (clevis) for hooking onto a chain
KR20190111556A (ko) * 2018-03-23 2019-10-02 삼성중공업 주식회사 와이어 끼임 방지 치구 및 샤클

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58119646U (ja) * 1982-07-13 1983-08-15 近藤鉄工株式会社 連結金具

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106493U (enrdf_load_stackoverflow) * 1980-12-22 1982-06-30
US6282879B1 (en) * 1999-08-06 2001-09-04 Kong S.P.A. Shackle (clevis) for hooking onto a chain
JP2001208033A (ja) * 2000-01-21 2001-08-03 Masaaki Mizuta シャックル状吊具
KR20190111556A (ko) * 2018-03-23 2019-10-02 삼성중공업 주식회사 와이어 끼임 방지 치구 및 샤클

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TW202120420A (zh) 2021-06-01
JPWO2021085209A1 (enrdf_load_stackoverflow) 2021-05-06

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