JP5027247B2 - Rail-type transport device - Google Patents

Description

  The present invention relates to a rail-type transport device that transports various automated facilities for performing various operations on a heat insulating material attached to an inner wall surface of a cargo compartment of a ship.

  Generally, in order to insulate the internal space of the cargo space of a ship, thousands or tens of thousands of panel-like heat insulating materials (for example, heat insulation panels) are attached to the inner wall surface of the ship's cargo room. Most of the work for attaching the heat insulating material is performed manually, and the work is partially performed using automated equipment. In particular, conventional automated machines for performing strut mounting operations in a ship's cargo compartment are designed and created for use with specific panels, and thus various problems have been pointed out as described below. .

  The term “specific panel” means a type of panel that is formed in a generally rectangular parallelepiped shape and is used only in a specific cargo compartment. The panel includes a heat insulating layer and a plywood layer overlaid on the heat insulating layer. A slit is formed around the joint between the plywood layer and the heat insulating layer. A plurality of the specific panels are arranged on the inner wall surface of the luggage compartment according to the technical standard for the luggage compartment. A groove between heat insulating materials is formed between adjacent panels and extends in a lattice direction. In view of this, the conventional automated machine for working in the cargo space of a ship uses the friction force generated when pushing the side surface of the plywood layer as a support base to A driving method of moving along the groove between materials is used. Specifically, the conventional automated machine includes a drive unit that moves while a guide mechanism such as a ski is inserted into and supported by the slit.

  However, since the driving unit of the conventional automated machine needs to move while pushing the plywood layer of the panel, the side surface area of the plywood layer is damaged by excessive force applied to the side surface of the plywood layer. There is a fear.

  In addition, it is necessary to provide a slit having a specific shape below the plywood layer of the panel, and it is necessary to attach a guide mechanism inserted into the slit to the conventional automated machine. To occur. In this regard, the guide mechanism that is inserted into the slit is a kind of prevention that prevents the drive unit from falling off or coming off the groove between the heat insulating materials while the drive unit moves in the vertical and horizontal directions. Acts as a safety device.

  In particular, regions where the plywood layer does not exist are formed in the inter-heat insulating groove due to the arrangement characteristics of the panels. Therefore, it is necessary to further use a plurality of connectors for bridging a region where the plurality of plywood layers do not exist. Aside from the inconvenience that arises when attaching the connector, when the connector is additionally attached to an area where the plywood layer does not exist, it is difficult for a conventional automated machine to maintain accurate movement performance.

  In the prior art, the heat insulation panel is manually attached. Therefore, even if a skilled worker makes every possible effort to accurately arrange and attach the panel to the inner wall surface of the cargo room, a gap remains at the joint between the plywood layers of each panel. The presence of the gap makes it difficult for the wheels of the machine to rotate along a precise path.

  Therefore, the present invention has been made in view of the above circumstances, and its purpose is to transport various automated equipment for performing various operations on the heat insulating material attached to the inner wall surface of the cargo compartment of a ship. It is providing the rail-type conveyance apparatus which performs. In addition, the rail-type transport device can improve the efficiency of work performed on the heat insulating material, and can provide accurate movement performance without damaging the heat insulating material.

  According to one aspect of the present invention, there is provided a rail-type transport device for transporting various automated equipment for performing various operations on a heat insulating material attached to an inner wall surface of a cargo compartment of a ship, A pair of rails removably attached to a heat insulating material, a transport frame that is detachably attached to the rail and that can move along the rail, and that is installed on the transport frame. And a drive unit having a drive wheel configured to come into roll contact with the rail when the transport frame is mounted on the rail, and installed in the transport frame and engaged with or detached from the rail. And a support wheel assembly having a support wheel movable in a direction toward or away from the rail.

  As used herein, the term “various postures” refers to the various postures that the transport device exhibits while the transport device automatically moves along the inner wall surface of the ship's cargo compartment, and is flat. It is used to mean attitude, horizontal attitude, vertical attitude, upward arrangement attitude, and the like.

  The rail-type transport device of the present invention is of a type in which the transport frame moves along the rail. This provides the advantage that there is no risk of damage to the insulation or plywood layer.

  Moreover, the rail-type transport device of the present invention is of a type in which the transport frame is supported by the inner end of the rail and moves along the inner end of the rail. This eliminates the need to form a slit in the lower part of the plywood layer of each heat insulating material. In addition, this improves the movement performance of the transport frame, and enables traveling while taking any one of various postures while ensuring accurate movement control.

  Furthermore, the rail-type transport device of the present invention uses rails. This eliminates the need to additionally attach a connector for bridging a region where the plywood layer does not exist in the inter-heat insulating groove.

  In addition, the rail-type transport device of the present invention uses a screw tightening type or spring-biased support wheel assembly when the transport frame is attached to the rail. This allows the carrying frame to be attached to and detached from the rail quickly and easily, thereby improving the convenience for the operator.

It is a perspective view of a rail type transportation device by one embodiment of the present invention. It is a sectional side view of this rail-type conveyance apparatus including the figure which expanded a part of rail-type conveyance apparatus shown in FIG. It is sectional drawing of the support wheel assembly used with the rail type conveying apparatus of this invention. FIG. 4 is a side view of the support wheel assembly with the support wheel assembly shown in FIG. 3 partially cut away.

  Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a rail-type transport device according to an embodiment of the present invention. FIG. 2 is a side sectional view of the rail-type transport device including a detailed enlarged view of a predetermined portion of the rail-type transport device shown in FIG. FIG. 3 is a cross-sectional view of a support wheel assembly used in the rail-type transport device of the present invention. FIG. 4 is a side view of the support wheel assembly with the support wheel assembly shown in FIG. 3 partially cut away.

  First, as shown in FIG.1 and FIG.2, the rail-type conveyance apparatus of this invention is for performing various operation | work with respect to the heat insulating material 1 (for example, heat insulation panel) attached to the inner wall surface of the ship's luggage compartment. It has a transport frame 100 that carries a variety of automated equipment. Examples of operations performed by the automated equipment include attaching a cover sheet to the heat insulating material 1, pretreatment with plasma on the surface of the cover sheet or the surface of the heat insulating material 1, inserting a foam plug into the bolt hole, and adjacent. For example, a flat joint may be attached to the heat insulating material 1. Needless to say, the transport frame 100 may carry other equipment or devices that need to be moved along the inner wall surface of the ship's cargo compartment. In this regard, the inter-heat insulating groove 9 is formed so as to extend in the lattice direction directly above the gap 8 between the adjacent heat insulating materials 1.

  The rail-type transport device of the present invention further includes a pair of parallel rails 200 fixedly attached to two adjacent heat insulating materials 1 extending along the inter-heat insulating material grooves 9. The rail 200 serves as a support base, and the transport frame 100 moves along the rail 200.

  The rail 200 is detachably fixed to the heat insulating material 1 using fasteners (conventional fixing means) such as bolts and clamps. For example, the rail 200 is fixed to the heat insulating material 1 by fastening a nut to a stud bolt that is inserted through the fixing hole 99 of the heat insulating material 1 and protrudes upward.

  The transport frame 100 includes driving units 300 arranged on both side portions of the transport frame 100. The driving unit 300 is operated by power such as electric power, and is configured to move the transport frame 100 along the rail 200. Each drive unit 300 includes a drive motor 320.

  The transport frame 100 is a structure for mounting a controller of various devices or systems, an automation module, a portable power source, a safety device, and other devices necessary for performing assigned work. The transport frame 100 is made of a very lightweight structural material such as aluminum and is made to have a structure that has a strong resistance to strain or other deformation.

  The carrying frame 100 has a pair of longitudinal girder members and a plurality of beams attached to the pair of longitudinal girder members so as to be in a spaced relationship. When the carrier frame 100 is assembled, the pair of longitudinal girder members and the plurality of beams are such that the assembled carrier frame 100 can conform to specific design requirements regarding direction, size, specifications and layout. Assembled together with appropriate fasteners. Although not shown, the transport frame 100 includes support legs, a handle, and a safety bar. Various equipment, devices, sensors and components including the drive motor 320 can be freely attached to the transport frame 100 using bolts and nuts.

  The rails 200 are attached to the upper corner portions of the heat insulating material 1 disposed on both sides of the inter-heat insulating material groove 9. The rail 200 can extend in the length direction (for example, the X-axis direction) of the inter-heat insulating groove 9.

  Each rail 200 is formed with a locking step portion 211 that is in close contact with the upper corner portion of the corresponding heat insulating material 1. Furthermore, each rail 200 has an engagement surface 212 formed on the opposite side of the locking step portion 211 so as to form a recess from the upper surface of the corresponding rail 200. Guide surfaces 213 and 214 that are inclined upward and downward are formed in the upper and lower regions of one side end of each rail 200. The one end of each rail 200 is formed to have a pentagonal cross section so that a support wheel 351, which will be described later, can contact like a cam follower. A distal end surface 219 is formed at the one end between the guide surfaces 213 and 214.

  An elongated rack gear 220 is attached to the engagement surface 212 of each rail 200 using a set screw. The rack gear 220 is attached so that a pinion gear 310 of each driving unit 300 described later can be engaged with the rack gear 220. Alternatively, the rack gear 220 can be formed integrally with each rail 200. Each rail 200 is temporarily or removably attached to the heat insulating material 1 using fasteners such as bolts and clamps, and is removed from the heat insulating material 1 after a desired operation is completed.

  The rail 200 is preferably made of a wood material such as timber, a high-strength lightweight metal such as an aluminum alloy, a high-strength synthetic resin material such as engineering plastic, or a composite material such as glass-reinforced plastic or carbon fiber-reinforced plastic. If the material can withstand a predetermined load or provides sufficient allowable strain to withstand that load, the rail 200 can be made of such material.

  The engagement surface 212 of each rail 200 has a width W sufficient for a pinion gear 310 of each drive unit 300 described later to freely move along the engagement surface 212 without interfering with the rail 200. The drive unit 300 is paired and attached to each of the front, rear, left and right portions of the transport frame 100, and thus the drive unit 300 can travel the transport frame 100 along the rail 200.

  As best shown in FIG. 2, each drive unit 300 includes a pinion gear 310 that engages the rack gear 220 of each rail 200, and a drive motor 320 attached to the transport frame 100 to rotate the pinion gear 310. including. A mounting bracket 330 extending in the lateral direction is fixedly attached to the motor casing of the drive motor 320. A support wheel assembly 340 is attached to the attachment bracket 330. The support wheel assembly 340 is selectively coupled to one end of each rail 200 to prevent derailment of the transport frame 100. The support wheel assembly 340 is attached to the mounting bracket 330 and can move in the axial direction, the wheel support block 350 attached to the tip of the movable shaft 341, and the wheel support block 350 so as to be rotatable. In addition, it includes a pair of support wheels 351 disposed in a manner to engage with one end of each rail 200 and a lever-like handle 342 attached to the other end of the movable shaft 341. When the lever-like handle 342 is rotated in the forward direction or the reverse direction, the movable shaft 341, the wheel support block 350, and the support wheel 351 move in a direction approaching or moving away from the one end of each rail 200.

  In the transport frame 100, the pinion gear 310 of each drive unit 300 is engaged with the rack gear 220 of each rail 200, and the support wheel 351 of the support wheel assembly 340 is in roll contact with the guide surfaces 213 and 214 of each rail 200 (rolling). It moves along the rail 200 in a state of being in contact.

  Although not shown, the torque of the drive motor 320 can be transmitted to the support wheels 351 of the support wheel assembly 340 or can be transmitted to separate drive wheels that are in roll contact with the guide surfaces 213, 214 of each rail 200. . In this case, the transport frame 100 is driven by a frictional force generated between the support wheels 351 or a frictional force generated between separate drive wheels and the rail 200.

  The support wheel 351 is held with an inclination of + 45 ° upward wheel arrangement angle and −45 ° downward wheel arrangement angle with respect to a virtual plane (a plane having the axis of the movable shaft 341). Accordingly, the support wheels 351 can be in intimate contact with the guide surfaces 213 and 214 of each rail 200, thereby preventing derailment of the transport frame 100.

  In the present invention, the drive motor 320 can be either a DC motor or a servo motor. The drive motor 320 includes a reduction gear, a bearing, a motor encoder, and a built-in brake. In this regard, the built-in brake serves as a traveling brake (not shown).

  The travel brake is built in the drive motor 320, and is configured such that the drive motor 320 resists rotation. The traveling brake is usually provided with electromagnetic restraining means that is not engaged with the shaft of the drive motor 320. In the event of an emergency or when it is necessary to stop operation of the transport frame 100 during normal work processes, power (from an emergency or commercial power source such as a battery or capacitor) is supplied to the electromagnetic restraining means. . In response to the supply of power, the electromagnetic restraining means causes the shaft of the drive motor 320 to resist rotation, thereby stopping the operation of the transport frame 100.

  A guide bush 360 is attached between the mounting bracket 330 and the movable shaft 341 for lubrication and foreign matter removal. The lever-like handle 342 of the support wheel assembly 340 is used with a well-known tailstock so that the lever-like handle 342 can generate a clamping force when manually rotated in a particular direction. Combined with screw type tightening mechanism.

  For example, when the lever-like handle 342 of the support wheel assembly 340 is rotated in the forward direction or the reverse direction, the movable shaft 341 moves forward or backward as indicated by the double arrow S. In other words, when the tightening force is generated by rotating the handle 342 in the forward direction, the movable shaft 341 is moved in a direction approaching the rail 200, and the support wheel 351 is in roll contact with the guide surfaces 213 and 214. It can be so. Therefore, the transport frame 100 is engaged with the rail 200, and unintentional derailment is prevented. Conversely, when a loosening force is generated by rotating the handle 342 in the reverse direction, the movable shaft 341 is moved away from the rail 200 so that the support wheel 351 can be separated from the guide surfaces 213 and 214. To do. As a result, the transport frame 100 can be removed from the rail 200.

  When the transport frame 100 is mounted on the rail 200, the pinion gear 310 of each drive unit 300 engages with the rack gear 220 of each rail 200. When the drive motor 320 is operated in this state, the torque of the drive motor 320 is transmitted to the pinion gear 310, and the pinion gear 310 can be rotated and moved along the rack gear 220. This allows the transport frame 100 to move toward the destination along the inter-heat insulation groove 9.

  As described above, in the rail-type transport device of the present invention, the transport frame 100 is configured to move along the rail 200 attached to the heat insulating material 1. Therefore, there is no possibility of damaging the plywood layer of the heat insulating material 1.

  In addition, the rail-type transport device of the present invention is of a type in which the transport frame 100 is supported by the rail 200 and moves along the rail 200. This eliminates the need to form a slit below the plywood layer of each heat insulating material 1. This also eliminates the need for additional connectors to bridge areas where there is no plywood layer present in the inter-heat insulation groove 9.

  In this embodiment, the engagement handle assembly 340 is attached to both sides of the transport frame 100, but it is also possible to attach one support wheel assembly to only one side of the transport frame 100. .

  In this embodiment, the transport frame 100 is moved by the driving force of the rack-pinion mechanism. However, if other drive systems can move the transport frame 100 along the rail 200, such other The driving method can also be used.

  Referring to FIGS. 3 and 4, the support wheel assembly 340 includes a cylindrical housing 343 fixedly attached to a mounting bracket 330 of each driving unit 300. The cylindrical housing 343 has a spiral guide groove 344. A lever-like handle 342 is fitted into the spiral guide groove 344 in a quick coupling manner so that the lever-like handle 342 can move along the movement path defined by the spiral guide groove 344 when rotating. To do. The spiral guide groove 344 serves as a mechanical guide for guiding the movement of the handle 342.

  The support wheel assembly 340 further includes a hollow rotating cylinder 345 rotatably mounted on the cylindrical housing 343. The inner end of the handle 342 is fixed to the rotary cylinder 345. When the handle 342 spirally moves in the forward or reverse direction along the spiral guide groove 344, the rotary cylinder 345 also moves forward or backward while rotating.

  An extension shaft member 341 a having a diameter smaller than that of the movable shaft 341 and formed integrally with the movable shaft 341 is inserted into the rotary cylinder 345. A stopper space having a diameter larger than the diameter of the extension shaft member 341a is formed at one end of the rotating cylinder 345 in the longitudinal direction. A washer 347 is accommodated in the stopper space, and is attached to one end of the extension shaft member 341a using a set screw. The washer 347 serves as a stopper that allows the movable shaft 341 and the extension shaft member 341a to move only within the range of the stroke permitted by the stopper space.

  A guide slot 341 b extending in the axial direction of the movable shaft 341 is formed on the outer peripheral surface of the movable shaft 341. A key portion protruding inward from the inner peripheral surface of the cylindrical housing 343 is slidably engaged with the guide slot 341b. As a result, the movable shaft 341 and the extension shaft member 341a move linearly without rotating.

  A compression spring 346 is installed around the extension shaft member 341a to generate an elastic reaction force necessary to quickly couple and release the support wheel assembly 340. One end of the compression spring 346 is in contact with a stopper ring attached to an intermediate portion of the rotary cylinder 345, and the other end of the compression spring 346 is kept in contact with the step surface 341c of the movable shaft 341.

  By using the elastic reaction force of the compression spring 346, the support wheel assembly 340 can perform a relatively quick lock operation, a pressure adjustment operation, and a relatively quick release operation.

  In the locking operation, when the operator rotates the handle 342 in the forward direction, the handle 342 moves spirally along a spiral path defined by the spiral guide groove 344 and then the straight line of the spiral guide groove 344. Stop at the end of the route. At this time, the direction in which the elastic reaction force of the compression spring 346 acts is perpendicular to the straight path of the spiral guide groove 344. Accordingly, the handle 342 is kept stopped in the straight path of the spiral guide groove 344.

  Simultaneously with the helical movement of the handle 342, the rotary cylinder 345 also moves helically and then stops. At this time, the compression spring 346 is compressed by the stopper ring of the rotary cylinder 345, and as a result, the elastic reaction force of the compression spring 346 acts on the step surface 341 c of the movable shaft 341. As a result, the movable shaft 341, the wheel support block 350, and the support wheel 351 are moved in a direction approaching the guide surfaces 213 and 214 of the rail 200. The support wheels 351 engage the guide surfaces 213 and 214 of each rail 200, thereby preventing the transport frame 100 from coming off the rail 200.

  In the release operation, when the operator rotates the handle 342 in the reverse direction, the handle 342 moves from the linear path of the spiral guide groove 344 and enters the spiral path. At this time, the handle 342 is elastic of the compression spring 346. It is quickly returned to its original position by the reaction force. At the same time, the rotating cylinder 345 is retracted, thereby pushing the washer 347 of the extension shaft member 341a. As a result, the movable shaft 341, the wheel support block 350, and the support wheel 351 are quickly returned to their original positions. This allows the transport frame 100 to be removed from the rail 200.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. It should be understood that various changes and modifications can be made without departing from the scope of the invention as defined in the claims.

  INDUSTRIAL APPLICABILITY The rail-type transport device of the present invention can be advantageously used in the field related to transporting various automated equipment for performing various operations on the heat insulating material attached to the inner wall surface of the cargo compartment of a ship. .

Claims (8)

A rail-type transport device for transporting automated equipment for performing various operations on the heat insulating material attached to the inner wall surface of the cargo compartment of a ship,
A pair of rails removably attached to the insulation;
A transport frame for transporting the automated equipment, detachably attached to the rail and movable along the rail;
A drive unit installed on the transport frame and having drive wheels configured to make roll contact with the rail when the transport frame is mounted on the rail;
Wherein installed in the carriage frame, seen including a support wheel assembly having a support wheel which can move closer or away from the direction relative to the rail to be or a leaving engagement with the rail,
The support wheel assembly includes:
A cylindrical housing formed with a spiral groove;
A hollow rotating cylinder rotatably installed in the cylindrical housing;
A movable shaft that is slidably inserted into the cylindrical housing so as to be able to move toward or away from the rail, and that holds the support wheel at its tip;
An extension shaft member fixed to the movable shaft and slidably installed in the cylindrical housing;
A compression spring installed to surround the extension shaft member;
The fitted in the spiral groove of the cylindrical housing, rail type transportation device in which the inner end is characterized in that it comprises a handle fixed to said hollow rotary cylinder. Each rail has an upper inclined guide surface and a lower inclined guide surface at one end thereof,
The rail-type transport device according to claim 1, wherein the support wheel is configured to be in roll contact with the upper inclined guide surface and the lower inclined guide surface. The rail-type transport device according to claim 2 , wherein a locking step portion for contacting an upper corner portion of the heat insulating material is formed on a lower surface of the one end portion of each rail. The rail-type transport device according to claim 2 , wherein the rail is made of one member selected from the group consisting of a wood material, a high-strength lightweight metal, a high-strength synthetic resin material, and a composite material. . The rail-type transport device according to claim 4 , wherein the high-strength lightweight metal includes an aluminum alloy. The rail-type transport device according to claim 4 , wherein the high-strength synthetic resin material includes engineering plastic. The rail-type transport device according to claim 4 , wherein the composite material includes glass reinforced plastic and carbon fiber reinforced plastic. Each of the rails has an elongated rack gear extending in the longitudinal direction;
The rail-type transport device according to claim 1, wherein the drive wheel is a pinion gear that can be engaged with the rack gear when the transport frame is mounted on the rail.

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