JP2018118814A - Suspension turning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension turning device capable of simplifying construction by reducing the number of components.SOLUTION: A suspension turning device 10 comprises: a base substance 50; a hoist; a hook block 110 which vertically moves in accordance with winding-up and winding-down of a load chain C2 by drive of a motor; chain terminal fixing means which is mounted on one end side of the width direction of the base substance 50 and fixes the one end side of the load chain C2; a stationary sling unit 60 which is mounted on the other end side of the width direction of the base substance 50, is connected to the other end part of a long load and comprises fixed-length hanging means; a chain bucket which is disposed between the chain terminal fixing means and the stationary sling unit 60 in the width direction and houses the load chain C2; and an upper limit switch mechanism which is mounted on one end side of the load chain C2 in the downward direction of the chain terminal fixing means and detects an upper limit position of the hook block 110.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a suspension turning device for hanging a long object while turning it upright.

  For example, in a construction site or the like, a long object such as a pillar member is suspended using a crane, lifted to a predetermined height, and then the suspended long object is lowered to a predetermined position. In many cases, the long object is placed at a predetermined placement location so that the longitudinal direction is horizontal (hereinafter, this state is referred to as a horizontal state). Therefore, when a long object such as a pillar member is suspended, it is suspended while maintaining its horizontal state so as not to damage its edges, etc., but the long object is generally along the vertical direction (hereinafter referred to as this In some cases, the column members are joined together by lowering the state so as to be in an upright state.

  In order to perform such work, a suspension turning device is used. In order to prevent damage to the edge or the like of a long object, the suspension rolling device hooks hooks on both ends of the long object and lifts it in a horizontal state. Then, in a state where the long object is suspended in the air, the long object is turned so as to stand upright.

  An example of such a suspension turning device is disclosed in Patent Document 1. Patent Document 1 discloses a configuration in which a pair of load sheaves are attached to a frame body, and each load sheave is driven by a motor. Thereby, it has the structure which raises / lowers the hook currently latched by the both ends side of a long thing.

Japanese Patent No. 5317455

  Incidentally, the suspension rolling device disclosed in Patent Document 1 has a problem that the configuration is complicated. That is, in the configuration disclosed in Patent Document 1, a pair of motors, load sheaves, and the like are provided for winding and unwinding each of the pair of suspension chains. Therefore, the number of parts including a motor and a load sheave increases, and the configuration becomes complicated.

  Further, in the configuration disclosed in Patent Document 1, when lifting a suspended load (long object) in a horizontal state, the pair of suspension chains open away from each other toward the suspended load. Inclined with respect to the vertical direction. Therefore, it is necessary to provide a structure for swinging the main body-side idle sheave corresponding to the inclination of the chain. In addition, since there is a pair of main body side idle sheaves, not only one structure but also a pair of the above-described main body side idle sheaves are required to be swung, which complicates the structure.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a suspension rolling device capable of simplifying the configuration by reducing the number of parts.

  In order to solve the above-described problem, according to a first aspect of the present invention, there is provided a suspension rolling device capable of rolling a long object in a horizontal state so that the long object is turned upright. And a hoisting device that is attached to the base body and includes a motor and rotates the load sheave by driving the motor, and the other end of the long object. A hook block that is suspended via a load chain and moves up and down in response to the winding and lowering of the load chain driven by a motor, and is attached to one end side in the width direction of the base. A chain end fixing means to be fixed and attached to the other end side in the width direction of the base body and connected to the other end of the long object, and suspended at a fixed length without being wound up or lowered. A fixed sling unit having suspended hanging means, a chain bucket disposed between the chain end fixing means and the fixed sling unit in the width direction, and housing the load chain, and a load chain below the chain end fixing means. There is provided a suspension rolling device comprising an upper limit switch mechanism attached to one end side and detecting an upper limit position of the hook block.

  In addition, according to another aspect of the present invention, in the above-described invention, a lower limit switch mechanism is provided on the side of the hoisting device below the load sheave and where the load chain is fed from the chain bucket to the load sheave. The lower limit position of the hook block is preferably detected by detecting the other end side of the load chain by the lower limit switch mechanism.

  Further, according to another aspect of the present invention, in the above-described invention, the hook block includes a pair of hook sheaves, a load chain is wound around each hook sheave, and an idle sheave is freely rotatable on the base body. It is preferable that a load chain existing between a pair of hook sheaves is hung around the idle sheave, and the idle sheave is preferably provided so that its rotational direction is parallel to the width direction. .

  Further, according to another aspect of the present invention, in the above-described invention, an upper sling unit for hanging on an external crane is attached to the base, and a flat plate for receiving the upper sling unit is attached to the upper part of the base. A sling receiving member having a shape-like portion is provided, and a braking resistor is disposed below the sling receiving member for converting electric energy into heat when the motor is controlled by an inverter and releasing it to the outside. It is preferable.

  According to the present invention, it is possible to simplify the configuration by reducing the number of parts in the suspension rolling device.

It is a perspective view which shows the external appearance of the suspension turning apparatus which concerns on one embodiment of this invention. It is a perspective view which shows the state which removed the cover from the suspension rolling apparatus shown in FIG. It is a perspective view which shows the structure of the support plate group, fixed sling unit, hoisting device, hook block, and chain bucket vicinity of the suspension rolling device shown in FIG. It is a perspective view which shows the structure of FIG. 3 from a back side. It is a perspective view which shows the fixed sling unit of the suspension rolling apparatus shown in FIG. 1, a winding device, and a hook block. It is sectional drawing which shows the structure of the upper side of the winding apparatus and hook block of a suspension rolling apparatus shown in FIG. 1, and is a figure which shows the state cut | disconnected by the YZ plane. It is a perspective view which shows the load sheave of the suspension rolling apparatus shown in FIG. 1, a chain guide mechanism, and the hook sheave of a hook block. It is a partial plane sectional view which expands and shows the structure of the guide roller and idle sheave vicinity of the suspension rolling apparatus shown in FIG. It is a perspective view which shows the structure of the chain terminal clamp and upper limit switch mechanism of the suspension turning apparatus shown in FIG. FIG. 2 is a partially exploded perspective view showing a configuration of a hook block of the suspension rolling device shown in FIG. 1. It is an electrical block diagram which shows the detailed structure of the control part vicinity of the suspension rolling apparatus shown in FIG. It is a figure which shows the state which suspended the elongate object in the horizontal state on the suspension rolling apparatus shown in FIG. It is a figure which shows the state which the load chain inclined from the state shown in FIG. It is a figure which shows the winding apparatus of a conventional structure, and arrangement | positioning of a guide member.

  Hereinafter, a suspended turning device 10 according to an embodiment of the present invention will be described with reference to the drawings. The suspension turning device 10 is hung on a crane hook or the like, for example, at a construction site or the like, and lifts a long object N1 (see FIG. 12) as a load while maintaining a horizontal state. The long object N1 is turned to allow the long object N1 to stand upright. The suspension turning device 10 is lifted by a crane or the like and moves in a vertical direction or the like over a relatively long distance. Therefore, the suspension rolling device 10 is mounted with a battery inside thereof to serve as a power source and drive a motor or the like.

<About the overall configuration of the suspension turning device>
FIG. 1 is a perspective view showing the external appearance of the suspension rolling device 10. FIG. 2 is a perspective view showing a state in which the cover is removed from the suspension turning device 10 shown in FIG. In the following description, an XYZ orthogonal coordinate system will be used as necessary. 1 and 2, the support plate set 50 is located between the pair of frames 30, but the X direction indicates the direction connecting the pair of frames 30, and the X1 side is shown in FIGS. 2 indicates the right side, and the X2 side indicates the left side in FIGS. 1 and 2. The Y direction refers to the direction connecting the pair of shackles 24, the Y1 side indicates the near side and the right side in FIGS. 1 and 2, and the Y2 side indicates the left side and the back side in FIGS. Shall. Further, the Z direction refers to the vertical direction in which the entire suspension and turning device 10 moves up and down, the Z1 side refers to the upper side of the paper in FIGS. 1 and 2, and the Z2 side refers to the lower side of the paper.

  As shown in FIGS. 1 and 2, the suspension and turning device 10 includes an upper sling unit 20, a frame 30, a cover 40, a support plate set 50, a fixed sling unit 60, a hoisting device 70, and a load. Chain C2, chain guide mechanism 80, chain end fastener 90, upper limit switch mechanism 100, hook block 110, chain bucket 130, lower limit switch mechanism 140, control unit 150, inverter device 160, The battery system 170 and the sling receiving member 190 are main components.

<Upper sling unit>
As shown in FIGS. 1 and 2, the upper sling unit 20 is a portion for hanging the suspension and turning device 10 as a whole by being hung on a hook or the like of a crane device installed at a construction site or the like. The upper sling unit 20 includes an upper ring 21, and an upper chain C <b> 1 in which a plurality of metal rings are connected to the upper ring 21 via a chain connector 22. A chain connector 23 is also connected to the lower end side of the upper chain C1, and the chain connector 23 is connected to the shackle 24. The shackle 24 is rotatably attached to a fixed shaft S1 attached to a support plate set 50 described later.

  In the configuration shown in FIG. 1, two upper chains C <b> 1 are connected to one upper ring 21 via a chain connector 22. However, only one upper chain C1 or three or more upper chains C1 may be provided as long as the suspension and suspension device 10 can be suspended on a crane hook or the like in a state where the weight balance is achieved. .

<About the frame and cover>
Further, as shown in FIG. 2, the suspension turning device 10 is provided with a pair of frames 30. The frame 30 is a portion on which a battery (battery system 170 described later) and a control unit 150 are mounted, and is disposed on one side (X1 side) and the other side (X2 side) with a support plate set 50 described later interposed therebetween. Is provided. The frame 30 is formed by combining a plurality of angles having an L-shaped cross section, but may be formed by combining a square pipe or other members. A support plate (not shown) is appropriately installed inside the frame 30, and the battery system 170 and the control unit 150 are mounted on the support plate.

  A leg 31 is provided at the lower end of the frame 30. The leg portion 31 is a portion that supports the entire suspension turning device 10 when the suspension turning device 10 is placed on an installation surface such as the ground.

  As shown in FIG. 1, a cover 40 is attached to the frame 30. The cover 40 covers the entire side surface, front surface, top surface, and the like of the frame 30. Thereby, the electrical components including the battery of the suspension rolling device 10 are protected. The cover 40 is, for example, a metal plate, but may be a resin panel when a strong impact is not applied from the outside. By attaching the cover 40 via, for example, a waterproof packing or the like, the electrical system of the suspension turning device 10 is protected from rainwater and external impacts.

<About support plate assembly>
As shown in FIG. 1 and FIG. 2, the support plate set 50 is a part that supports the entire load excluding the upper sling unit 20 of the suspended turning device 10 via the shackle 24. The support plate set 50 corresponds to the base. FIG. 3 is a perspective view showing a configuration in the vicinity of the support plate set 50, the fixed sling unit 60, the hoisting device 70, the hook block 110, and the chain bucket 130. FIG. 4 is a perspective view showing the configuration of FIG. 3 from the back side.

  As shown in FIGS. 3 and 4, the support plate group 50 has a plurality (three in the present embodiment) of support plates 51, 52, and 53, and these support plates 51, 52 and 53 are in a state of having a predetermined interval. It is fixed. In the following description, the support plate 51 located on one side (X1 side) in the X direction is referred to as a motor side plate 51 and the support plate 53 located on the other side (X2 side) in the X direction is referred to as necessary. Sometimes referred to as a gear side plate 53. In addition, the support plate 52 between the motor side plate 51 and the gear side plate 53 may be referred to as an intermediate plate 52.

  These support plates 51, 52, 53 directly support each part of the suspended turning device 10 including the fixed sling unit 60 and the hoisting device 70. Among these, the fixed sling unit 60 is supported on the other side (Y2 side) and the lower side (Z2 side) of the support plates 51, 52, and 53 in the width direction (Y direction). Specifically, the sling shaft member S2 is attached to the above-described portions of the support plates 51, 52, and 53 so as to penetrate these portions. The sling shaft member S2 includes a sling shaft (not shown), and a connecting fitting 61 of the fixed sling unit 60 is rotatably attached to the sling shaft.

<About fixed sling unit>
FIG. 5 is a perspective view showing the fixed sling unit 60, the hoisting device 70, and the hook block 110. As shown in FIG. 5, the fixed sling unit 60 includes a pair of connecting fittings 61. The pair of connecting fittings 61 are attached so as to face each other. In addition, of the pair of connecting fittings 61, one connecting fitting 61 is rotatably attached between the motor side plate 51 and the intermediate plate 52 by a sling shaft (not shown), and the other connecting fitting 61 is Similarly, it is rotatably attached between the intermediate plate 52 and the gear side plate 53 by a sling shaft. Therefore, a space in which a spacer or the like (not shown) can be attached is secured between the pair of connecting fittings 61.

  A fastener 62 is disposed between the pair of connecting fittings 61. On the lower side (Z2 side) of the fastener 62, the upper end of the fixed chain C3 is fixed via a connecting shaft or the like. Further, the upper side of the clasp 62 is a sliding shaft portion (not shown) having a smaller diameter than the lower side, and a pair of fixing brackets 63 are provided on the lower side (Z2 side) of the sliding shaft portion. It arrange | positions in the state fixed to the connection metal fitting 61. FIG. The fixing metal 63 is provided with an insertion hole penetrating in the vertical direction (Z direction), and the lower portion of the above-described sliding shaft portion is inserted into the insertion hole.

  Further, a thrust bearing member 64 corresponding to the bearing is disposed on the upper portion of the fixing metal 63, and a nut member 65 is disposed above the thrust bearing member 64. A sliding shaft portion is inserted through the thrust bearing member 64, and the nut member 65 is fixed in a state of preventing the upper side of the sliding shaft portion from coming off. Therefore, the clasp 62 is rotatably supported between the pair of connecting clasps 61.

  As described above, the upper end portion of the fixed chain C3 is fixed to the fastener 62, and the chain connector 66 is connected to the lower end side of the fixed chain C3. A lower ring 67 is connected. Then, it is possible to connect one end side of the long object N1 through the lower ring 67. The fixed chain C3 corresponds to the hanging means.

  Next, the hoisting device 70 will be described. The hoisting device 70 is supported on one side (Y1 side) in the width direction (Y direction) of the support plates 51, 52, 53 described above. Specifically, the hoisting device 70 is attached to the through holes existing in the above-described portions of the support plates 51, 52, 53.

<About the hoisting device>
FIG. 6 is a cross-sectional view showing the configuration of the upper side of the hoisting device 70 and the hook block 110, and shows a state cut along the YZ plane. As shown in FIG. 6, the hoisting device 70 includes a load sheave 71 that is rotatable while the load chain C <b> 2 is wound around. The load sheave 71 includes a vertical pocket and a horizontal pocket (not shown; corresponding to a chain pocket) into which metal rings C2a arranged alternately in a vertical shape and a horizontal shape in the load chain C2 are fitted. Therefore, when the load sheave 71 rotates, the load chain C2 can be reliably sent.

  The hoisting device 70 includes a motor 72 as shown in FIGS. 4 and 5, and the load sheave 71 described above is driven by the motor 72. The hoisting device 70 is also provided with a gear mechanism 73 (see FIG. 10), and the driving force of the motor 72 is decelerated by the gear mechanism 73 and transmitted to the load sheave 71. By adopting such a configuration, the hoisting device 70 can wind up or lower the load chain C <b> 2 according to the rotation direction of the load sheave 71.

<About chain guide mechanism>
FIG. 7 is a perspective view showing the load sheave 71, the chain guide mechanism 80, and the hook sheave of the hook block 110. FIG. 8 is a partial plan sectional view showing an enlarged configuration in the vicinity of the guide rollers 81 to 83 and the idle sheave 85. As shown in FIGS. 7 and 8, the load chain C <b> 2 is guided by a chain guide mechanism 80. The chain guide mechanism 80 includes guide rollers 81 to 84 and an idle sheave 85. The guide rollers 81 to 84 are provided with groove portions 81a to 84a, respectively, and the groove portions 81a to 84a have a flat YZ plane (small dimension in the X direction) in the load chain C2. The ring load chain C2a enters.

  Among these, the guide roller 81 and the guide roller 82 are arranged so as to be aligned in the Y direction. Moreover, the outer peripheral surface of the guide roller 81 and the outer peripheral surface of the guide roller 82 are close to each other at a distance that is narrower than the width of the metal ring C2a (dimension in the Y direction) but larger than the diameter of the steel wire of each metal ring C2a. ing. Accordingly, the metal ring C2a perpendicular to the YZ plane is allowed to pass between the guide roller 81 and the guide roller 82 while preventing the metal ring C2a whose YZ plane is a flat plane from coming off. The guide rollers 81 to 84 and the idle sheave 85 are all free to rotate.

  Here, when going from the guide rollers 81 and 82 to the lower side (Z2 side) along the load chain C2, the load chain C2 is wound around the hook sheave 111 of the hook block 110. At that time, the load chain C2 is sent to one side (X1 side) in the X direction. Then, when heading upward (Z1 side) along the load chain C2, the guide roller 83 and the idle sheave 85 are opposed to each other. The guide roller 83 and the idle sheave 85 are arranged so as to be aligned in the Y direction.

  In the present embodiment, the guide roller 83 and the guide roller 81 are pivotally supported by a rotation shaft SH1 that extends in the X direction (with a common shaft). The guide roller 81 and the guide roller 83 are provided with the same outer diameter. The outer diameter of the guide rollers 81 and 83 is larger than the outer diameter of the guide roller 82 and the outer diameter of the idle sheave 85. It is provided in a small diameter.

  Further, the idle sheave 85 is pivotally supported with the guide roller 82 by a rotation shaft SH2 extending in the X direction (with a common shaft). Similar to the load sheave 71, the idle sheave 85 includes a vertical pocket 85a and a horizontal pocket 85b (see FIG. 8; corresponding to the chain pocket), and can reliably send the load chain C2 according to the rotation. ing. As is clear from FIGS. 7 and 8, the rotation shaft SH2 is provided with a larger diameter than the rotation shaft SH1.

  In addition, the diameter of the pitch circle around which the load chain C2 is wound around the idle sheave 85 is approximately the same diameter as the pitch circle around which the load chain C2 is wound around the guide roller 82. In addition, the outer peripheral surface of the guide roller 83 and the outer peripheral surface of the idle sheave 85 are close to each other at a distance narrower than the width (dimension in the Y direction) of the metal ring C2a in which the YZ plane is a flat surface. It is prevented from coming off from the idle sheave 85. It should be noted that the distance between the outer peripheral surface of the guide roller 83 and the outer peripheral surface of the idle sheave 85 is preferably smaller than the distance between the outer peripheral surface of the guide roller 81 and the outer peripheral surface of the guide roller 82.

  Further, a guide roller 84 is provided so as to face and oppose the idle sheave 85. The idle sheave 85 is located on the side opposite to the guide roller 83 in the width direction (Y direction). That is, the guide roller 83 is located on the other side (Y2 side) in the width direction (Y direction) than the idle sheave 85, but the guide roller 84 is on one side (Y direction) in the width direction (Y direction) than the idle sheave 85. (Y1 side).

  However, in the present embodiment, the guide roller 84 is located above the guide roller 83 and the idle sheave 85 in the height direction (Z direction) (Z1 side). Therefore, the load chain C <b> 2 hung around the idle sheave 85 is in a state that is difficult to be detached from the idle sheave 85. Further, by adopting such an arrangement, the guide roller 84 is arranged on the same YZ plane with respect to the guide roller 83 and the idle sheave 85.

  The outer peripheral surface of the guide roller 84 and the outer peripheral surface of the idle sheave 85 are also close to each other at a distance narrower than the width of the metal ring C2a where the YZ plane is a flat surface to prevent the load chain C2 from coming off the idle sheave 85. doing. It should be noted that the distance between the outer peripheral surface of the guide roller 84 and the outer peripheral surface of the idle sheave 85 is preferably smaller than the distance between the outer peripheral surface of the guide roller 81 and the outer peripheral surface of the guide roller 82.

  Then, when going from the idle sheave 85 to the lower side (Z2 side) along the load chain C2, the load chain C2 is hung around the hook sheave 112 of the hook block 110. At this time, the load chain C2 is sent to the other side (X2 side) in the X direction, contrary to the hook sheave 111.

  Then, when traveling from the hook sheave 112 upward (Z1 side) along the load chain C2, the load chain C2 reaches a chain end fastener 90 as shown in FIG.

<About chain end fasteners>
FIG. 9 is a perspective view showing the configuration of the chain end fastener 90 and the upper limit switch mechanism 100. As shown in FIG. 2, the chain end fastener 90 is fixed between the intermediate plate 52 and the gear side plate 53, and holds one end side of the load chain C2. That is, the width of the chain end fastener 90 is equal to the distance between the intermediate plate 52 and the gear side plate 53. The chain end fastener 90 corresponds to the chain end fixing means.

  Here, a roller shaft 92 is inserted into the upper through hole 91 of the chain end fastener 90, and this roller shaft 92 is inserted into a through hole (not shown) of the intermediate plate 52 and the gear side plate 53. ing. The roller shaft 92 is a member that rotatably supports the guide roller 84 described above, and the roller shaft 92 also serves to fix the chain end fastener 90. A metal fixture shaft 94 is inserted into the lower through hole 93 of the chain end metal fitting 90. This metal fixture shaft 94 is also inserted into the through holes, not shown, of the intermediate plate 52 and the gear side plate 53. As described above, the chain end fastener 90 is fixed to the intermediate plate 52 and the gear side plate 53 via the roller shaft 92 and the bracket fixing shaft 94.

  As shown in FIG. 8, a chain fixing portion 95 is provided on the lower end side of the chain end fastener 90. The chain fixing portion 95 is provided with a concave portion 96 that is recessed upward. Therefore, the chain fixing part 95 is provided so as to surround the recess 96. The chain fixing portion 95 is provided with an insertion hole 97 along the X direction. The insertion holes 97 are formed in the chain fixing portions 95 on both sides of the recess 96, and the insertion holes 97 on both sides are provided coaxially. Therefore, the end of the load chain C2 is fixed to the chain end fastener 90 by inserting the metal ring C2a at one end of the load chain C2 into the recess 96 and inserting the chain pins 98 into the insertion holes 97 on both sides. .

  In this way, one end side of the load chain C2 is fixed to the chain end fastener 90, and the middle part of the load chain C2 is hung around the load sheave 71, so that the load such as the long object N1 can be loaded. It is configured to move up and down with the rotation of 71.

<Upper limit switch mechanism>
Moreover, as shown in FIG. 9, the upper limit switch mechanism 100 is attached to the metal ring C2a on the terminal side of the load chain C2. That is, the upper limit switch mechanism 100 is attached to the metal ring C2a located below the most end of the load chain C2. For this reason, the upper limit switch mechanism 100 is located below the chain end fastener 90. The upper limit switch mechanism 100 has a pair of stopper fittings 101, and the pair of stopper fittings 101 are provided so as to sandwich the metal ring C2a.

  In the configuration shown in FIG. 9, a concave portion 102 a that is recessed upward is provided at the opposing portion of the pair of stopper fittings 101. Further, as shown in FIG. 6, an insertion hole 102b is provided upward from the upper end surface of the recess 102a. The metal ring C2a whose YZ plane is a flat surface enters the recess 102a described above, but the metal ring C2a cannot pass through the insertion hole 102b. However, the lower side of the metal ring C2a whose XZ plane is a flat surface is positioned in the concave portion 102a, and the upper side thereof extends to above the pair of stopper fittings 101.

  As shown in FIG. 9, a limit switch 105 is attached to the stopper fitting 101 (stopper fitting 101A) on the X1 side. The limit switch 105 is attached to the flange portion 103 of the stopper fitting 101A. Further, the above-described flange portion 103 is provided with an insertion hole 104 that penetrates in the vertical direction (Z direction), and the insertion projection 104 of the limit switch 105 is inserted into the insertion hole 104. The pushing protrusion 106 protrudes downward (Z2 side) from the lower end surfaces of the pair of stopper fittings 101. Therefore, when the hook block 110 is lifted, the upper end surface of the hook block 110 can push the push projection 106 so that the upper limit position of the hook block 110 can be detected. Yes.

<About hook block>
A hook block 110 that is hung around the load chain C2 is located below the upper limit switch mechanism 100. FIG. 10 is a partially exploded perspective view showing the configuration of the hook block 110. As shown in FIG. 10, the hook block 110 includes a pair of side plates 111 and 112 and an intermediate plate 113, which are fixed via a plurality of fixing bolts 114. The pair of side plates 111 and 112 are located on both sides of the hook block 110 in the width direction (Y direction). In addition, an intermediate plate 113 is disposed between the pair of side plates 111 and 112 to partition the pair of hook sheaves.

  A sheave shaft 115 is inserted into the through-holes (only the through-hole 111a is illustrated) of the pair of side plates 111 and 112 and the through-hole (not illustrated) of the intermediate plate 113, thereby the sheave shaft 115 is a pair. The side plates 111 and 112 and the intermediate plate 113 are supported.

  The sheave shaft 115 rotatably supports hook sheaves 116 and 117 via bearings B1 and B2. Like the load sheave 71 and the idle sheave 85 described above, the hook sheaves 116 and 117 are provided with a vertical pocket and a horizontal pocket (not shown; corresponding to the chain pocket), so that the load chain C2 can be reliably sent according to the rotation. It is possible.

  In the configuration shown in FIG. 10, a guide fitting 118 is provided in close proximity to and opposite to each hook sheave 116, 117 in order to prevent the load chain C2 from being detached from the hook sheave 116, 117. The guide fitting 118 is attached so as to be symmetric in the angle direction of the hook sheaves 116 and 117. Therefore, the load chain C2 is prevented from coming off the hook sheaves 116, 117 on the side where the load chain C2 enters the hook sheaves 116, 117 and the side where the load chain C2 is sent out from the hook sheaves 116, 117, respectively. The upper end side of the guide fitting 118 is provided in an annular shape. Therefore, it is possible to reliably prevent the load chain C2 from being detached from the guide fitting 118 and the hook sheaves 116 and 117.

  Further, as shown in FIG. 10, a lower hook 120 is provided on the lower side (Z2 side) of the hook block 110. The lower hook 120 includes a hook portion 120a and a shaft support portion (not shown). The hook portion 120a is a portion on which a load such as a long object N1 is applied. Further, a lever 121 for preventing the load attached to the lower hook 120 from being removed is attached to the hook portion 120a. One end side of the lever 121 is located on the upper side (Z1 side), and the lever 121 is provided so as to be rotatable about the rotation shaft 121a on the one end side. Further, the other end side of the lever 121 is located on the lower side (Z2 side), and is provided so as to contact the inner periphery on the tip side of the hook portion 120a.

  The lever 121 is provided with an urging force by a spring (not shown) so that the other end always comes into contact with the inner periphery on the tip side of the hook portion 120a. Thereby, in a state where no external force is applied to the lever 121, the closed state of the lever 121 can be maintained, and the lever 121 can be prevented from being opened and the load falling.

  Further, the lower hook 120 includes a shaft support portion (not shown). The shaft support portion is a portion located on the upper side of the lower hook 120 and is a portion provided in a shaft shape. The shaft support portion is inserted into a through hole (not shown) formed in the support fitting 122 shown in FIG. 9, passes through the hole portion of the thrust bearing member 123, and is screwed into the nut member 124. The support fitting 122 is fixed to the lower side of the pair of side plates 111 and 112. Specifically, the boss portion 122a of the support fitting 122 is inserted into the fixing holes (only the fixing hole 111b is shown) of the pair of side plates 111 and 112, so that the support fitting 122 is attached to the pair of side plates 111 and 112. It is fixed.

  A thrust bearing member 123 corresponding to the bearing is disposed above the support fitting 122, and a nut member 124 is disposed above the thrust bearing member 123. The thrust bearing member 123 has the shaft support portion of the lower hook 120 inserted therethrough, and the nut member 124 is fixed so as to prevent the upper side of the shaft support portion from coming off. Thereby, the lower hook 120 is rotatably supported.

  As shown in FIGS. 5 and 6 and the like, the hook block 110 is attached with an impact absorbing mechanism 125. The shock absorbing mechanism 125 softens the shock when the hook block 110 moves up and collides with the limit switch 105 of the upper limit switch mechanism 100. Specifically, the shock absorbing mechanism 125 is attached to a guide fitting 118 that guides the load chain C2 toward the upper limit switch mechanism 100.

  The shock absorbing mechanism 125 includes a contact plate 126 and a buffer spring 127. The contact plate 126 is a ring-shaped member through which the load chain C2 can be inserted. When the hook block 110 is raised to the upper end, the contact plate 126 pushes the push protrusion 106. Further, the lower end side (Z2 side) of the buffer spring 127 is attached to the guide fitting 118, and the contact plate 126 is fixed on the upper end side (Z1 side) thereof. Therefore, the impact when the contact plate 126 collides with the upper limit switch mechanism 100 can be reduced. The load chain C2 is inserted through the center hole located at the center of the buffer spring 127 in the radial direction. Therefore, the load chain C2 is relatively movable with respect to the contact plate 126 and the buffer spring 127.

<About chain bucket>
Next, the chain bucket 130 will be described. The chain bucket 130 is a box-shaped member that houses the other end side of the load chain C2. As shown in FIG. 2, the chain bucket 130 is provided at a portion between the left and right frames 30, and the support plate 51, via a metal plate or the like (not shown) on the upper end side of the chain bucket 130. 53 is attached to the lower end side. The chain bucket 130 may be attached to the left and right frames 30 or may be attached only to the left and right frames 30.

  Further, as shown in FIGS. 3 and 4, the chain bucket 130 is located at a central portion in the width direction (Y direction) of the suspension and turning device 10. That is, the chain end fastener 90 and the hook block 110 after winding are disposed on one side (Y1 side) in the width direction (Y direction) of the chain bucket 130, and the other side in the width direction (Y direction). A fixed sling unit 60 is arranged on the (Y2 side). By adopting such a configuration, the suspension and turning device 10 has a space efficiency and an arrangement with an excellent weight balance.

<About the lower limit switch mechanism>
Next, the lower limit switch mechanism 140 will be described. The lower limit switch mechanism 140 detects a terminal on the other end side of the load chain C2. That is, it has already been described that the end of the load chain C2 is fixed to the chain end fastener 90, but the end of the other end of the load chain C2 is similar to the shock absorbing mechanism 125. The other end shock absorbing mechanism (not shown) is fixed. When the load chain C2 is sent out from the chain bucket 130 to the limit length, a contact plate (not shown) provided in the other end shock absorbing mechanism rises toward the load sheave 71 of the hoisting device 70. Then, by detecting this abutment plate with the lower limit switch mechanism 140, the operation of the motor 72 is stopped, and the further delivery of the load chain C2 is stopped.

  Here, the lower limit switch mechanism 140 includes a switch lever 141, and the switch lever 141 can rotate integrally with the rotation shaft 142 while using the rotation shaft 142 as a fulcrum. The lower limit switch mechanism 140 includes a limit switch (not shown). Accordingly, when the switch lever 141 is pushed by the contact plate and rotates, the rotating shaft 142 rotates, and the rotation of the rotating shaft 142 operates a limit switch (not shown), thereby operating the motor 72. Is configured to stop.

<Control section and battery system>
FIG. 11 is an electrical block diagram illustrating a detailed configuration of the control unit 150. As shown in FIGS. 2 and 11, the suspension and turning device 10 is provided with a control unit 150 that controls the suspension and turning device 10 and a battery system 170 as a power source. The controller 150 and the battery system 170 are housed in the frame 30 so as to prevent intrusion of rainwater and dust. In the present embodiment, an inverter device 160 that constitutes a part of the control unit 150 is also housed in one of the left and right frames 30. The motor 72 is configured to be driven by the inverter device 160 based on the control of the control unit 150. A braking resistor 165, which will be described later, is disposed outside the frame 30 as shown in FIG. 1 to suppress a temperature rise in the frame 30 and improve the heat dissipation of the braking resistor 165.

  The inverter device 160 includes a controller 161 that controls the inverter device 160, an AC / DC conversion unit 162 that converts AC power into DC power, and power that drives and controls the motor 72 that is an AC motor. A DC / AC conversion unit 163 for converting the data into The battery system 170 is connected to a DC circuit that connects the AC / DC converter 162 and the DC / AC converter 163. Connection unit 164 is electrically connected to AC / DC conversion unit 162 of inverter device 160 and serves as a connection unit for electrical connection with an external commercial power source. The inverter device 160 is configured to operate by AC power supplied via the connection unit 164 or power of the battery system 170. When it is desired to charge the battery system 170, the battery system 170 is connected to an external AC power supply (AC200V) via the connection unit 164. As a result, AC power supplied from the outside is converted to DC power by being supplied to the AC / DC conversion unit 163 via the connection unit 164, and the battery system 170 is charged.

  As shown in FIG. 11, in the present embodiment, the suspension rolling device 10 includes a PLC (programmable logic controller) 151 corresponding to the control unit 150. The PLC 151 is electrically connected to the communication circuit 152, and when receiving an electrical signal from the communication circuit 152, gives a command corresponding to the electrical signal to the controller 161 of the inverter device 160. The PLC 151 transmits an electrical signal corresponding to the operation status to the communication circuit 152, and wirelessly communicates with the external remote control device R1 based on the electrical signal. The remote control device R1 is not limited to a wireless communication device, and a wired remote control device (for example, a pendant switch) may be connected, and the remote control device may be directly connected to the inverter device 160.

  Furthermore, a detector such as an encoder (not shown) that measures the feeding length of the load chain C2, a load measuring instrument such as a load cell (not shown) that measures the load applied to the load chain C2 and the fixed chain C3 due to the load of the long object N1, Furthermore, a suspension angle measuring device (not shown) that measures the opening angle of the load chain C2 and the fixed chain C3 may be provided, and these measurement data may be taken into the PLC 151 to control the suspension turning operation. The control unit 150 can be operated by a touch panel (not shown) mounted on the suspension and turning device 10 in addition to the remote control device R1, and the touch panel screen has a payout length of the load chain C2, a remaining battery level, It displays the operation status and measured values of the equipment, operation history such as operation time, maintenance information, and the like.

  In addition, the battery system 170 is electrically connected to the inverter device 160 via the DC / DC converter 180. The battery system 170 includes a BMU (battery management unit) 171, a battery controller 172, and a battery module 173. The BMU 171 is a unit that monitors each battery module 173, processes information such as the voltage and temperature of each battery module 173, manages the state of battery deterioration, calculates the remaining battery level, Controls driving of the omitted cooling fan.

  Further, a battery controller 172 is disposed between the DC / DC converter 180 and the battery system 170, and when an abnormality occurs in the battery system 170, the DC / DC converter 180 is based on a command from the BMU 171. And the electrical connection of the battery system 170 is cut off. In addition, a plurality of battery modules 173 are provided in the battery system 170, and each can store predetermined power.

  The battery system 170 is configured to be able to be charged from regenerative power (electric energy) generated during the regenerative operation of the motor 72 in addition to being rechargeable from an external power source. That is, during the lowering operation of the motor 72, the motor 72 acts as a generator to generate regenerative power. This regenerative power is converted into DC power by the DC / AC converter 163 of the inverter device 160, and the DC power is supplied to the battery system 170 via the DC / DC converter 180, thereby charging the battery module 173. It is possible.

  The DC / DC converter 180 and the BMU 171 monitor the load status of the inverter device 160 and the state of the battery module 173, and control the charge / discharge current and voltage. When the battery module 173 or the like is heated or fully charged, and the regenerative power cannot be processed by the battery system 170, the regenerative power is converted into heat by the braking resistor 165 and processed. That is, when the regenerative power exceeds the chargeable power, the circuit voltage of the inverter device 160 increases. The inverter device 160 is configured to monitor the circuit voltage and supply regenerative power to the braking resistor 165 so as to exceed or not exceed a predetermined voltage. Accordingly, the regenerative electric power generated by the motor 72 is prioritized to charge the battery system 170, and is processed by the braking resistor 165 in a situation where the battery system 170 cannot be fully charged. Thus, the operation of the suspension and turning device 10 can be continued without increasing the size of the battery module 173. In addition, in the suspension rolling device 10, the battery system can be reduced in size while saving power, the suspension rolling device 10 can be reduced in size and weight, and less original power (charging the battery system before operation) can be achieved. It is possible to operate continuously for a long time with the power.

  The resistor of the braking resistor 165 may be any resistor as long as it can handle a large current, such as a hollow resistor or a cement resistor. Further, the braking resistor 165 may include a cooling fan (not shown). The battery system 170 is preferably provided with a lithium ion secondary battery as a battery module. However, in addition to the secondary battery, the battery system 170 is configured by a storage device having excellent portability such as lithium ion capacity and suitable for charging / discharging of a large current. It may be.

<About sling receiving member>
As shown in FIG. 1, the suspended turning device 10 includes a sling receiving member 190. The sling receiving member 190 is a portion on which the upper sling unit 20 is placed in a state where the suspended turning device 10 is not used, and has sufficient strength to support the upper sling unit 20. The sling receiving member 190 has a flat plate-like portion, and has an area where the upper sling unit 20 can be sufficiently placed. The sling receiving member 190 is configured to cover the braking resistor 165 described above. As shown in FIG. 1, the sling receiving member 190 completely covers the upper portion of the braking resistor 165, and protects the braking resistor 165 from rainwater and impact. Further, the sling receiving member 190 covers a portion between the left and right frames 30. Therefore, rainwater is prevented from entering the hoisting device 70 side.

<About the action of the suspension turning device>
The operation of the suspension rolling device 10 having the above configuration will be described below. The suspension turning device 10 of the present embodiment is suspended by a crane hook or the like. Then, the suspension and turning device 10 moves up and down in accordance with the winding and lowering of the wire of the crane. When suspending the long object N1 from such a suspension turning device 10, the suspension turning device 10 is lowered, and in this state, the lower ring 67 is fixed to the fixed sling unit 60 via a wire, a chain, or the like. Then, the other end of the long object N1 is connected. Further, one end of the long object N1 is connected to the lower hook 120 via a wire, a chain, or the like.

  At this time, the long object N1 is placed on the placement part in a horizontal state, but the wire of the crane is wound up, the height position of the suspension turning device 10 is adjusted, and the motor 72 is driven. Thus, the height position of the lower hook 120 is adjusted. As a result, the fixed chain C3 and the load chain C2 of the fixed sling unit 60 are stretched without being loosened with respect to the long object N1 placed horizontally.

  FIG. 12 is a diagram illustrating a state in which the long object N1 is suspended from the suspension rolling device 10 in a horizontal state. When the crane wire is wound up with the load chain C2 and the fixed chain C3 stretched as shown in FIG. 12, one end side and the other end side of the long object N1 are separated from the placement site almost simultaneously. Therefore, it is not necessary to damage the edge of the long object N1.

  Then, in a state where the long object N1 is lifted and exists in the air, when an operation for lowering the lower hook 120 is given to the control unit 150 by an operator's operation or automatically, a command from the control unit 150 is given. Accordingly, the motor 72 is inverter-controlled to lower the load chain C2. Then, one end side of the long object N1 descends due to its own weight, but the other end side of the long object N1 is connected to the fixed sling unit 60 and thus does not descend. Therefore, the long object N1 is turned so that the one end side descends with the other end side as a fulcrum. And the elongate object N1 will be in the state standing upright.

  After making the elongate object N1 upright, the crane wire is wound up and the elongate object N1 is installed at a predetermined installation site. After the installation, the crane wire is again unwound, and thereafter, the wire, the chain, etc. are connected to the long object N1 again, and the same operation is repeated.

  In addition, in the lowering operation in which the long object N1 is lowered from the horizontal state, the motor 72 functions as a generator, so that regenerative power is generated. The regenerative power is charged to each battery module 173 of the battery system 170 via the AC / DC conversion unit 163 of the inverter device 160. Thereby, in the battery module 173 of the battery system 170, it is prevented that the battery remaining amount decreases.

  Here, in the turning operation of the long object N1, the lowering operation as described above is mainly performed, so that each battery module 173 is fully charged or nearly full. In that case, regenerative power is supplied to the braking resistor 165 via the AC / DC converter 163 of the inverter device 160. Thereby, the regenerative electric power from the motor 72 is consumed by the braking resistor 165. This prevents the inverter device 160 from becoming overvoltage and continues the lowering operation of the long object N1.

<About effect>
The suspension and turning device 10 having the above-described configuration includes a support plate set 50 corresponding to a base body, and is attached to the support plate set 50, and includes a motor 72, and the load sheave 71 is rotated by driving the motor 72. The hoisting device 70 for hoisting and lowering the load chain C2 is connected to the other end of the long object N1, suspended via the load chain C2, and driven by the motor 72. There is provided a hook block 110 that moves up and down in accordance with the winding and lowering of the.

  The suspension rolling device 10 is attached to one end side (Y1 side) in the width direction (Y direction) of the support plate set 50, a chain end fastener 90 for fixing one end side of the load chain C2, and the support plate set. 50 is attached to the other end (Y2 side) in the width direction (Y direction) and is connected to the other end of the long object N1 and is suspended at a fixed length without being wound or lowered. And a fixed sling unit 60 including the fixed chain C3. Therefore, unlike the configuration disclosed in Patent Document 1, the chain on both ends of the long object N1 is wound and lowered, and only the load chain C2 on one end side of the long object N1 is wound and lowered. It becomes the composition which becomes. For this reason, it becomes possible to make the structure of the suspension rolling device 10 compact.

  In addition, the suspension turning device 10 includes a chain bucket 130 that houses the load chain C2. The chain bucket 130 is disposed between the chain end fastener 90 and the fixed sling unit 60 in the width direction (Y direction). Is arranged. Therefore, the suspension and turning device 10 can improve the space efficiency and the weight balance.

  The suspension rolling device 10 includes an upper limit switch mechanism 100 that detects the upper limit position of the hook block 110, and the upper limit switch mechanism 100 is disposed below the chain end fastener 90. For this reason, it is possible to prevent vibration at a portion where the upper limit switch mechanism 100 is provided, and it is possible to prevent chattering in which the switch is repeatedly turned on and off by vibration during detection. Here, in the conventional configuration as disclosed in Patent Document 1, for example, a cylindrical guide member such as the guide fitting 118 shown in FIG. 10 of the present embodiment is attached, and the guide member is interposed therebetween. The load chain is sent to the load sheave, and the load chain is sent out from the load sheave.

  FIG. 14 is a view showing the arrangement of the above-described conventional hoisting device 270 and guide member 280. In such a conventional suspension turning device, an upper limit switch mechanism is attached to the inlet side at the lower end of one guide member 280. Further, a lower limit switch mechanism is attached to the inlet side at the lower end of the other guide member 280.

  In such a conventional configuration shown in FIG. 14, the load chain C2 may vibrate at some time, and the guide member 280 may vibrate accordingly. In that case, the upper limit switch mechanism and the lower limit switch mechanism may vibrate, causing unintended switch on / off, and chattering that repeats driving and stopping of the motor may occur.

  However, in the present embodiment, the upper limit switch mechanism 100 is located below the chain end fastener 90. Moreover, the upper limit switch mechanism 100 is attached to the load chain C <b> 2 below the chain end fastener 90. Therefore, it is possible to effectively prevent the upper limit switch mechanism 100 from vibrating and causing chattering as described above.

  In the present embodiment, a chain end fastener 90 is attached to one end side (Y1 side) in the width direction (Y direction) of the support plate set 50, and one end of the load chain C2 below the chain end fastener 90 is provided. The upper limit switch mechanism 100 is attached to the side. Therefore, even if the long object N1 is suspended and the long object N1 is lifted, it is easy to come into contact with the upper limit switch mechanism 100 on one end side of the load chain C2, and the rising of the long object N1 is reliably detected. be able to. At this time, as shown in FIG. 12, the load chain C2 connected to the hook block 110 is inclined with respect to the vertical direction so as to be directed outward. In this case, the load chain C2 is attached to the load chain C2. The upper limit switch mechanism 100 is also inclined obliquely toward the outside. Therefore, the upper limit switch mechanism 100 can reliably detect the overwinding of the load chain C2 to safely stop the elevating of the long object N1.

  Further, in the present embodiment, a lower limit switch as shown in FIG. 7 is provided in the hoisting device 70 below the load sheave 71 and on the side where the load chain C2 is fed from the chain bucket 130 to the load sheave 71. A mechanism 140 is provided. The lower limit position of the hook block 110 is detected by detecting the other end side of the load chain C2 by the lower limit switch mechanism 140. Therefore, since the lower limit switch mechanism is not attached to the guide member 280 as shown in FIG. 11, it is possible to prevent the lower limit switch mechanism 140 from vibrating. That is, the chattering as described above can be prevented.

  Further, in the present embodiment, the hook block 110 includes a pair of hook sheaves 116, 117, and a load chain C2 is hung around each hook sheave 116, 117. Further, an idle sheave 85 is rotatably attached to the support plate set 50, and a load chain C <b> 2 existing between a pair of hook sheaves 116 and 117 is hung around the idle sheave 85. Further, the idle sheave 85 is provided such that its rotational direction is parallel to the width direction (Y direction).

  Here, when the long object N1 installed horizontally at the installation site is suspended, one end side of the long object N1 is connected to the lower hook 120, and the other end side of the long object N1 is connected to the fixed sling unit 60. Are connected. At this time, the fixed chain C3 of the fixed sling unit 60 and the load chain C2 on the side where the hook block 110 is suspended are separated from each other as it goes from the upper side (Z1 side) to the lower side (Z2 side). Opened.

  Here, in the conventional configuration, as shown in FIG. 5 of Patent Document 1, the idle sheave is arranged so that the idle sheave is orthogonal to the load sheave. That is, it is arranged so as to be orthogonal to the width direction (Y direction) of the suspension rolling device. For this reason, a mechanism for swinging the idle sheave is separately required in response to the pair of load chains provided in the conventional configuration of Patent Document 1 being in an open state such that they are separated from each other. Therefore, in the conventional configuration, the configuration becomes complicated and the number of parts increases.

  On the other hand, in the present embodiment, the idle sheave 85 is provided so that the rotation direction thereof is parallel to the width direction (Y direction). FIG. 13 is a diagram illustrating a state in which the load chain C2 is inclined from the state illustrated in FIG. As shown in FIG. 13, when hanging a long object N <b> 1 horizontally installed at the installation site, the load chain C <b> 2 is circumferentially parallel to the rotational direction of the idle sheave 85 as it goes downward from the idle sheave 85. , The load chain C2 moves. Therefore, a mechanism for swinging the idle sheave 85 as in the conventional configuration is not necessary, and the configuration can be simplified by reducing the number of parts.

  In addition, as shown in FIG. 13, when the upper limit position of the load chain C2 is reached, the upper limit switch mechanism 100 is surely pushed in at the upper end side (the contact plate 126 in FIG. 13) of the hook block 110. Can do. Therefore, the upper limit switch mechanism 100 can reliably detect the overwinding of the load chain C2, and the rising of the long object N1 can be stopped safely.

  Further, in the present embodiment, the support plate set 50 is attached with an upper sling unit 20 for hanging on an external crane, and the upper plate unit 50 receives the upper sling unit 20 on the upper part thereof. A sling receiving member 190 having a flat plate-like portion is provided. Further, below the sling receiving member 190, a braking resistor 165 is disposed for converting electric energy into heat when the motor 72 is controlled by an inverter and releasing the heat to the outside.

  For this reason, when the suspension rolling device 10 is not used, it is possible to prevent the upper sling unit 20 from hanging down unnecessarily and getting in the way. In addition, since the sling receiving member 190 is arranged so as to cover the upper portion of the braking resistor 165, it is possible to protect the braking resistor 165 from rain water or an impact when the upper sling unit 20 is placed.

<Modification>
As mentioned above, although each embodiment of this invention was described, this invention can be variously deformed besides this. This will be described below.

  In the above-described embodiment, the load chain C2 is used to suspend one end of the long object N1. However, a wire may be used instead of the load chain C2.

  Further, in the above-described embodiment, the fixed sling unit 60 is configured to include the fixed chain C3 as the hanging means. However, the suspension means is not limited to the fixed chain C3, and may be a wire having a fixed length.

  Moreover, in the above-mentioned embodiment, the suspension rolling device 10 is configured to mount the battery system 170 including the battery module 173. However, the motor 72 may be driven by supplying external commercial power through a cable for supplying power, or a motor may be mounted.

  In the above-described embodiment, the motor 72 is inverter-controlled. However, the motor 72 may not be inverter-controlled. The motor 72 is preferably an AC motor such as a three-phase AC motor, but may be a DC motor.

DESCRIPTION OF SYMBOLS 10 ... Suspension rolling device, 20 ... Upper sling unit, 21 ... Upper ring, 22, 23 ... Chain connector, 24 ... Shackle, 30 ... Frame, 31 ... Leg part, 40 ... Cover, 50 ... Support plate group (base | substrate) 51 ... motor side plate, 52 ... intermediate plate, 53 ... gear side plate, 60 ... fixed sling unit, 61 ... connecting bracket, 62 ... fastener, 63 ... fixing bracket, 64 ... thrust bearing member, 65 ... Nut member 66 ... Chain connector 67 ... Lower ring 70 ... Hoisting device 71 71 Load sheave 72 72 Motor 80 Chain guide mechanism 81-84 Guide roller 81a-84a Groove 85 Idle sheave 90 ... Chain end fastener (corresponding to chain end fixing means) 91 ... Through hole 92 ... Roller shaft 93 ... Through hole 94 ... Metal fixture shaft 95 Chain fixing part, 96 ... recess, 97 ... insertion hole, 98 ... chain pin, 100 ... upper limit switch mechanism, 101, 101A ... stopper metal fitting, 102a ... recess, 102b ... insertion hole, 103 ... flange part, 104 ... insertion hole , 105 ... limit switch, 106 ... push-in projection, 110 ... hook block, 111, 112 ... side plate, 111a ... through hole, 111b ... fixing hole, 113 ... intermediate plate, 114 ... fixing bolt, 115 ... sheave shaft, 116, 117: hook sheave, 118: guide fitting, 120 ... lower hook, 120a ... hook portion, 121 ... lever, 121a ... rotating shaft, 122 ... support fitting, 122a ... boss portion, 123 ... thrust bearing member, 124 ... nut member, 125 ... Shock absorbing mechanism, 126 ... Contact plate, 127 ... Buffer spring, 130 ... Chain bucket 140 ... lower limit switch mechanism, 141 ... switch lever, 142 ... rotating shaft, 150 ... control unit, 151 ... PLC, 152 ... communication circuit, 160 ... inverter device, 161 ... controller, 162 ... DC / AC conversion unit, 163 ... AC / DC converter, 164 ... connector, 165 ... brake resistor, 170 ... battery system, 171 ... BMU, 172 ... battery controller, 173 ... battery module, 180 ... DC / DC converter, 190 ... sling Receiving member, B1, B2 ... bearing, C1 ... upper chain, C2 ... load chain, C2a ... metal ring, C3 ... fixed chain (corresponding to suspension means), N1 ... long object, R1 ... remote control device, S1 ... Fixed shaft, S2 ... sling shaft member, SH1, SH2 ... rotating shaft

Claims (4)

A suspension turning device capable of turning a long object in a horizontal state so that the long object stands upright,
A substrate;
A hoisting device that is attached to the base body and includes a motor, and winds and lowers the load chain by rotating the load sheave by driving the motor;
A hook block that is connected to the other end of the long object, is suspended via the load chain, and moves up and down in response to winding and lowering of the load chain by driving of the motor,
Chain end fixing means attached to one end side in the width direction of the base body and fixing one end side of the load chain;
Suspension means attached to the other end of the base in the width direction and connected to the other end of the elongated object and suspended at a fixed length without being wound up or lowered. A fixed sling unit;
A chain bucket that is disposed between the chain end fixing means and the fixed sling unit in the width direction, and stores the load chain;
An upper limit switch mechanism that is attached to one end of the load chain below the chain end fixing means and detects an upper limit position of the hook block;
A suspension turning device characterized by comprising: The suspension rolling device according to claim 1,
Of the hoisting device, a lower limit switch mechanism is provided below the load sheave and on the side where the load chain is fed from the chain bucket to the load sheave,
By detecting the other end side of the load chain by the lower limit switch mechanism, the lower limit position of the hook block is detected.
A suspension turning device characterized by that. The suspension turning device according to claim 1 or 2,
The hook block includes a pair of hook sheaves, and the load chain is wound around each hook sheave,
An idle sheave is rotatably attached to the base, and the load sheave existing between a pair of the hook sheaves is hung around the idle sheave.
The idle sheave is provided such that its rotational direction is parallel to the width direction.
A suspension turning device characterized by that. The suspension turning device according to any one of claims 1 to 3,
The base is attached with an upper sling unit for hanging on an external crane,
On the upper part of the base, a sling receiving member having a flat part for receiving the upper sling unit is provided,
Below the sling receiving member, a braking resistor is disposed for converting electric energy into heat when the motor is controlled by an inverter and escaping to the outside.
A suspension turning device characterized by that.

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