JP2017128409A - Suspension device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension device capable of easily performing engagement with and detachment from an object to be hoisted or lowered.SOLUTION: A suspension device comprises an engaging part 10 having a first weight member 14 fixed to an edge part of engaging plate members 12, 12 so as to be deviated from a virtual line L connecting a coupling bar 11 and an engaging bar 13. The engaging part 10 is configured to have a mass which is asymmetric with respect to the virtual line L due to the first weight member 14. Thus, the deviation of a center of gravity of the engaging part 10 from the virtual line L inclines the engaging part 10 so that an angle between the virtual line L and downward vertical line becomes an acute angle when no downward vertical force is applied to the engaging bar 13.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a suspension device, and more particularly to a suspension device for lifting or hanging an object.

  A conventional suspension device is described in Patent Document 1. The suspension device includes a guide rope connected to a suspension ring fixed to an object, a hook that can be engaged with and detached from the suspension ring while being guided by the guide rope, and a suspension chain connected to the hook. It has.

  When lifting an object, the hook is lowered with a chain while being guided by the guide rope with the concave portion of the hook down. When the guide rope is pulled up while lifting the chain in a state where the concave portion of the hook hits the hanging ring, the hook rotates while being hooked on the upper part of the hanging ring, and the hook and the hanging ring are engaged. When the chain is pulled up in this state, the object is lifted. On the other hand, when hanging an object, the object is lowered while loosening the guide rope. When the object has landed, pull down the chain while pulling the guide rope. Then, the hook rotates and the hook is detached from the hanging ring.

Special opening and closing 7-215657 gazette

  However, the suspension device described in Patent Document 1 requires the operation of the chain and the guide rope to engage and disengage the hook and the suspension ring, and the operation is complicated and the configuration of the suspension device is complicated. there were.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a suspension device that can be easily engaged and disengaged from a suspended or suspended object.

The suspension device according to the present invention is a suspension device that suspends an object provided with a hook, and the suspension device includes a main body portion and an engagement portion that is rotatably provided to the main body portion via a connecting member. The engaging portion is provided with an engaging member that engages with the hook, and when the engaging member is not applied with a downward force in the vertical direction, an imaginary line that connects the connecting member and the engaging member is in the vertical direction. The engaging part is inclined so as to form an acute angle with respect to the downward direction. When the hook and the engaging member are engaged and the object is lifted by the lifting device, the imaginary line is engaged so as to be parallel to the vertical direction. The part rotates around the connecting member.
The engaging portion may be inclined so that the imaginary line forms an acute angle with respect to the downward in the vertical direction in a state where the downward force in the vertical direction is not applied to the engaging member by the configuration in which the mass is asymmetric with respect to the imaginary line. . By providing the first weight member at a position deviated from the imaginary line in the engaging part, the engaging part may be configured such that the mass is asymmetric with respect to the imaginary line.
There may be further provided a tilting means for tilting the engaging portion so that the virtual line forms an acute angle with respect to the downward in the vertical direction. The tilting means may be an elastic member having one end connected to the main body and the other end connected to the engaging portion. The tilting means includes a string member having one end connected to the engaging portion, a second weight member connected to the other end of the string member, and a support member fixed to the main body, and the string member includes one end It may be on the support member between the other end.

  According to this invention, in a state where the downward force in the vertical direction is not applied to the engaging member, the engaging portion is inclined so that the imaginary line connecting the connecting member and the engaging member forms an acute angle with respect to the downward in the vertical direction. When the hook and the engaging member engage with each other and the object is lifted by the suspension device, the engaging portion rotates about the connecting member so that the imaginary line is parallel to the vertical direction. Can be easily engaged and disengaged.

It is a figure of the state before lifting a tundish in the hanging apparatus which concerns on Embodiment 1 of this invention. 3 is a configuration diagram of an engaging portion of the suspension device according to Embodiment 1. FIG. It is a figure of the state which lifted the tundish in the hanging apparatus which concerns on Embodiment 1. FIG. It is a block diagram of the engaging part of the hanging apparatus which concerns on Embodiment 2. FIG. FIG. 10 is a configuration diagram of an engaging portion of a suspension device according to a third embodiment. It is a block diagram of the engaging part of the hanging apparatus which concerns on Embodiment 4.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 shows a suspension device 1 according to Embodiment 1 of the present invention. In the first embodiment, the object that is lifted or hung by the lifting device 1 is a tundish 100 that stores molten steel in a continuous casting machine. The upper edge portion 102 of the tundish 100 is provided with four hooks 101 (only two hooks 101 are shown in FIG. 1).

  The suspension device 1 includes a main body 2 and a wire 3 that is connected to the main body 2 to lift or lower the main body 2. The main body 2 includes a base 7, a suspension ring 4 provided on the top of the base 7, and four rods 6 extending downward from the bottom of the base 7 (only two rods 6 are shown in FIG. 1). And). A hook 5 is provided at the end of the wire 3, and the main body 2 and the wire 3 are connected by engaging the hook 5 with the suspension ring 4. Four rods 6 are arranged so that each rod 6 is positioned right above each hook 5 when the main body 2 is positioned above the tundish 100.

  As shown in FIG. 2A, an engaging portion 10 is attached to the lower end of each rod 6 so as to be rotatable about the connecting bar 11 by a cylindrical connecting bar 11 that is a connecting member. The engaging portion 10 has two elongated plate-like engaging plate members 12 and 12 whose both ends are rounded. As shown in FIG. 2B, the two engaging plate members 12, 12 sandwich the rod 6, and the connecting bar 11 is located near one end of each engaging plate member 12, 12. The engaging portion 10 is attached to the rod 6 so as to pass through the rod 12 and the rod 6. In the vicinity of the other end of the two engagement plate members 12, 12, a cylindrical engagement bar 13 is provided so as to penetrate therethrough. Since the engaging bar 13 engages with the hook 101 (see FIG. 1) by an operation described later, it constitutes an engaging member.

  As shown in FIG. 2A, assuming an imaginary line L that is a virtual straight line connecting the connecting bar 11 and the engaging bar 13, the engaging portion 10 is shifted from the imaginary line L. The first weight member 14 is provided so as to be fixed to the edge of each engagement plate member 12, 12. Due to the first weight member 14, the engaging portion 10 is configured to be asymmetric in mass with respect to the imaginary line L. As described above, since the center of gravity of the engaging portion 10 is deviated from the virtual line L, the virtual line L is vertically downward (FIG. 2A) when the vertical force is not applied to the engaging bar 13. ), The engaging portion 10 is inclined so as to form an acute angle with respect to the arrow drawn with a one-dot chain line). This angle may be any number as long as it is an acute angle, but an angle of about 45 ° is preferable. This angle can be changed by adjusting the mass of the first weight member 14.

Next, the operation of the suspension device 1 according to the embodiment of the present invention will be described.
As shown in FIG. 1, when the tundish 100 is lifted by the lifting device 1, the wire 3 is operated to move the main body 2 downward in the vertical direction as indicated by the arrow (1). Eventually, each engaging portion 10 hits the upper edge portion 102 of the tundish 100. Here, each engaging portion 10 is inclined as described above, and can rotate around the connecting bar 11 with respect to the rod 6, so that the main body portion 2 has moved slightly downward. However, since each engaging part 10 hits the upper edge part 102 and rotates around the connecting bar 11, the downward force by the main body part 2 is not applied to the upper edge part 102 of the tundish 100. If the engaging portion 10 cannot be rotated, or if it is rotatable but not tilted, a downward force by the main body portion 2 is directly applied to the upper edge portion 102 of the tundish 100, and the tundish 100. May be deformed or damaged, or may be vibrated or turned over.

  Next, by operating the wire 3, the main body 2 is moved in the horizontal direction as indicated by an arrow (2) so that each engaging portion 10 moves toward each hook 101. Eventually, the engagement bar 13 of each engagement portion 10 hits the hook 101. Thereafter, the wire 3 is operated to move the main body 2 upward in the vertical direction as indicated by an arrow (3). Then, the engagement bar 13 comes into contact with the curved portion of the hook 101. That is, the engagement bar 13 and the hook 101 are engaged. When the main body 2 is further moved as indicated by an arrow (3) in this state, a downward force is applied to the engaging bar 13, and the engaging portion 10 is centered on the connecting bar 11 as shown in FIG. And the virtual line L becomes parallel to the vertical direction. When the main body 2 is further moved as indicated by the arrow (3), the tundish 100 is lifted by the lifting device 1. Thereafter, the tundish 100 is moved to a desired position.

  When the tundish 100 is lowered to a desired position, the wire 3 is operated to move the main body 2 downward in the vertical direction. When the tundish 100 is lowered to a desired position, the downward force in the vertical direction applied to the engagement bar 13 disappears. Then, the engaging portion 10 rotates around the connecting bar 11 and is in a tilted state as shown in FIG. The fact that the engaging portion 10 is in an inclined state can be easily recognized by a person who operates the suspension device 1, and the engagement between the engagement bar 13 and the hook 101 by moving the suspension device 1 in the horizontal direction. The match is released.

  Thus, in a state where the downward force in the vertical direction is not applied to the engagement bar 13, the imaginary line L connecting the connection bar 11 and the engagement bar 13 forms an acute angle with respect to the downward downward direction in the vertical direction. 10 is inclined, and when the hook 101 and the engaging bar 13 are engaged and the tundish 100 is lifted by the lifting device 1, the engaging portion 10 is connected to the connecting bar so that the imaginary line L is parallel to the vertical direction. By rotating about 11, engagement and disengagement with the tundish 100 can be easily performed.

Embodiment 2. FIG.
Next, a suspension device according to Embodiment 2 of the present invention will be described. In the following embodiments, the same reference numerals as those in FIGS. 1 to 3 are the same or similar components, and thus detailed description thereof is omitted.
The suspension device according to the second embodiment is obtained by changing the configuration of the engaging portion with respect to the first embodiment.

  As shown in FIG. 4A, an engaging portion 20 is attached to the lower end of each rod 6 so as to be rotatable around the connecting bar 11 by a cylindrical connecting bar 11 that is a connecting member. The engaging portion 20 has two engaging plate members 22 and 22 provided so as to sandwich the rod 6 (FIG. 4A shows only one engaging plate member 22). ). The engagement plate member 22 has a triangular shape in which one side of the imaginary line L protrudes in a direction perpendicular to the imaginary line L and each vertex is rounded as a whole. With such a shape of the engaging plate member 22, the engaging portion 20 has a configuration in which the mass is asymmetric with respect to the virtual line L. As described above, since the center of gravity of the engaging portion 20 is deviated from the imaginary line L, the imaginary line L is directed downward in the vertical direction (FIG. ), The engaging portion 20 is inclined so as to form an acute angle with respect to the arrow drawn with a dashed line. Other configurations are the same as those of the first embodiment.

  As shown in FIG. 4B, the hook 101 (see FIG. 1) and the engagement bar 13 are engaged, and the tundish 100 (see FIG. 1) is lifted by the suspension device 1 (see FIG. 1). Thus, when a downward force (arrow A) in the vertical direction is applied to the engagement bar 13, the engagement portion 10 rotates about the connection bar 11, and the imaginary line L becomes parallel to the vertical direction. The subsequent operations for the lifting device 1 to lift or suspend the tundish 100 are the same as those in the first embodiment.

  In this way, the shape of the engagement plate member 22 is asymmetric with respect to the imaginary line L, and the engagement portion 20 is configured so that the mass is asymmetric with respect to the imaginary line L. When the force is not applied, the engaging portion 20 is tilted so that the imaginary line L connecting the connecting bar 11 and the engaging bar 13 forms an acute angle with respect to the downward direction in the vertical direction. An effect can be obtained.

  In the second embodiment, the engagement plate member 22 has a triangular shape in which each vertex is rounded as a whole, but is not limited to this shape. Whatever the shape of the engagement plate member 22 is, the shape of the engagement plate member 22 is asymmetric with respect to the imaginary line L so that the imaginary line L forms an acute angle with respect to the vertical downward direction. It is only necessary that the portion 20 can be tilted.

Embodiment 3 FIG.
Next, a suspension device according to Embodiment 3 of the present invention will be described.
The suspension device according to the third embodiment is provided with tilting means for tilting the engaging portion with respect to the first embodiment.

  As shown in FIG. 5A, an engaging portion 30 is attached to the lower end of each rod 6 so as to be rotatable about the connecting bar 11 by a cylindrical connecting bar 11 as a connecting member. As an inclining means for inclining the engaging portion 30, a spring 31 which is an elastic member having one end connected to the base portion 7 and the other end connected to the engaging plate member 12 is provided. In a state where the downward force in the vertical direction is not applied to the engagement bar 13 due to the elastic force of the spring 31, the imaginary line L is acute with respect to the downward direction in the vertical direction (an arrow drawn with a dashed line in FIG. 5A). The engaging portion 30 is inclined so as to make an angle of. Other configurations are the same as those of the first embodiment except that the first weight member 14 (see FIG. 2A) is not provided.

  As shown in FIG. 5B, the hook 101 (see FIG. 1) and the engagement bar 13 are engaged, and the tundish 100 (see FIG. 1) is lifted by the suspension device 1 (see FIG. 1). Thus, when a downward force (arrow B) in the vertical direction is applied to the engagement bar 13, the engagement portion 30 rotates about the connection bar 11 and the imaginary line L becomes parallel to the vertical direction. The subsequent operations for the lifting device 1 to lift or suspend the tundish 100 are the same as those in the first embodiment.

  Thus, even if the engaging portion 30 is tilted so that the imaginary line L connecting the connecting bar 11 and the engaging bar 13 forms an acute angle with respect to the downward in the vertical direction by the elastic force of the spring 31, the embodiment 1 can be obtained.

  In the third embodiment, one end of the spring 31 may be connected to any part of the main body 2. For example, the rod 6 may be provided with a portion protruding in the horizontal direction, and one end of the spring 31 may be connected to this portion. Further, the other end of the spring 31 may be connected to any portion of the engaging portion 30 instead of the engaging plate member 12. For example, the other end of the spring 31 may be connected to the engagement bar 13.

Embodiment 4 FIG.
Next, a suspension device according to a fourth embodiment of the present invention will be described.
The suspension device according to the fourth embodiment is different from the first embodiment in that an inclination means having a configuration different from that of the third embodiment is provided.

  As shown in FIG. 6A, an engaging portion 40 is attached to the lower end of each rod 6 so as to be rotatable about the connecting bar 11 by a columnar connecting bar 11 that is a connecting member. As a tilting means for tilting the engaging portion 40, a string member 41 having one end connected to the engaging plate member 12, a second weight member 42 connected to the other end of the string member 41, and a support fixed to the base portion 7 A pulley 43 as a member is provided. The string member 41 rests on the pulley 43 between one end and the other end thereof. When the gravity of the second weight member 42 pulls the engaging portion 40 via the string member 41, the imaginary line L is directed downward in the vertical direction (FIG. 6) in a state where no vertical downward force is applied to the engaging bar 13. The engaging portion 40 is inclined so as to form an acute angle with respect to the arrow (indicated by a one-dot chain line in (a)). Other configurations are the same as those of the first embodiment except that the first weight member 14 (see FIG. 2A) is not provided.

  As shown in FIG. 6B, the hook 101 (see FIG. 1) and the engagement bar 13 are engaged, and the tundish 100 (see FIG. 1) is lifted by the suspension device 1 (see FIG. 1). Thus, when a downward force (arrow C) in the vertical direction is applied to the engagement bar 13, the engagement portion 40 rotates about the connection bar 11 and the imaginary line L becomes parallel to the vertical direction. The subsequent operations for the lifting device 1 to lift or suspend the tundish 100 are the same as those in the first embodiment.

  Thus, when the gravity of the second weight member 42 pulls the engaging portion 40 through the string member 41, the imaginary line L connecting the connecting bar 11 and the engaging bar 13 has an acute angle with respect to the downward in the vertical direction. Even if the engaging portion 40 is tilted as it is, the same effect as in the first embodiment can be obtained.

  In the fourth embodiment, one end of the string member 41 may be connected to any part of the engaging portion 40 instead of the engaging plate member 12. For example, one end of the string member 41 may be connected to the engagement bar 13. Further, the pulley 43 may be connected to any part of the main body 2. For example, the rod 6 may be provided with a portion protruding in the horizontal direction, and the pulley 43 may be provided at this portion. Furthermore, as long as the support member is not the pulley 43 but the string member 41 slides, it may be a cylindrical member or a bar member having another shape.

  In the first to fourth embodiments, the engaging portions 10, 20, 30, and 40 are inclined so that the engaging bar 13 is positioned on the opposite side of the hook 101 with respect to the extension line in the longitudinal direction of the rod 6. You may make it incline to the opposite side. In the first to fourth embodiments, the tundish 100 is lifted or hung by the hanging device 1, but is not limited thereto. Any object may be used as long as the hook 101 that can be engaged with the engagement bar 13 is provided. Further, the number of hooks 101 provided in the tundish 100 is not limited to four, and may be one or any number of two or more. The number of rods 6 included in the main body 2 and the engaging portions 10, 20, 30, and 40 provided on the rods 6 are not necessarily the same as the number of hooks 101, but are the same as the number of hooks 101. It is preferable.

  DESCRIPTION OF SYMBOLS 1 Suspension device, 2 Main-body part, 10, 20, 30, 40 Engagement part, 11 Connection bar (connection member), 13 Engagement bar (engagement member), 14 1st weight member, 31 Spring (elastic member, inclination) Means), 41 string member, 42 second weight member, 43 pulley (support member), 100 tundish (object), 101 hook, L virtual line.

Claims (6)

A hanging device for hanging an object provided with a hook,
The suspension device
The main body,
An engagement portion provided rotatably on the main body portion via a connecting member;
The engaging portion is provided with an engaging member that engages with the hook. When no vertical downward force is applied to the engaging member, an imaginary line that connects the connecting member and the engaging member is provided. When the engaging part is inclined so that an acute angle is formed with respect to the downward direction in the vertical direction and the hook and the engaging member are engaged and the object is lifted by the suspension device, the imaginary line becomes vertical. A suspension device in which the engaging portion rotates around the connecting member so as to be parallel to the direction.   The engagement portion has a configuration in which the mass is asymmetric with respect to the imaginary line, so that the imaginary line forms an acute angle with respect to the downward direction in the vertical direction when no downward force is applied to the engagement member. The suspension device according to claim 1, wherein the suspension device is inclined.   The suspension device according to claim 2, wherein a mass of the engaging portion is asymmetric with respect to the virtual line by providing a first weight member at a position shifted from the virtual line in the engaging portion.   The suspension device according to claim 1, further comprising a tilting unit for tilting the engaging portion so that the virtual line forms an acute angle with respect to a downward downward direction in the vertical direction.   The suspension device according to claim 4, wherein the tilting means is an elastic member having one end connected to the main body and the other end connected to the engaging portion. The tilting means is
A string member having one end connected to the engaging portion;
A second weight member connected to the other end of the string member;
A support member fixed to the main body,
The suspension device according to claim 4, wherein the string member rests on the support member between the one end and the other end.

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