JP2014005632A - Material conveyance device and material conveyance method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a material conveyance device and a material conveyance method capable of improving working efficiency when the material is laterally moved while securing safety in the conveyance of the material in a railroad track.SOLUTION: A material conveyance device 1 includes: a frame 10; traveling wheels 14A and 14C; a traveling motor; lateral transfer wheels 16A and 16C; a lateral transfer motor; suspension members 11; and lifting devices 18A and 18C. The lateral transfer wheels 16A and 16C are configured such that rotary shafts can rotate within a horizontal surface, and a pair of suspension members 11 are disposed so as to be independently movable in the longitudinal direction of the frame 10. The lower end of the lateral transfer wheels 16A and 16C at the maximum ascent position elevated by the lifting devices 18A and 18C is higher than the lower end of the traveling wheels 14A and 14C, and the lower end of the lateral transfer wheels 16A and 16C at the maximum descent position lowered by the lifting devices 18A and 18C is lower than the lower end of the traveling wheels 14A and 14C.

Description

  The present invention relates to a material transporting apparatus and a material transporting method for transporting a material in a track.

  In railway work performed on a track, a material transport device that travels on a rail and transports construction materials while holding construction materials such as building materials may be used in order to improve work efficiency. In such an apparatus, in order to install the construction material at a predetermined position, it is necessary to transport the construction material to the side of the track.

  2. Description of the Related Art Conventionally, a technique for moving a device laterally after transporting construction materials to a work position side using a rail is known. For example, in Patent Document 1, a longitudinal beam member integrated with a bridge girder, a horizontal beam device that supports the longitudinal beam member and has a wheel at a lower portion, and a horizontal beam that is disposed in an upper flange portion of H-shaped steel and H-shaped steel. An apparatus for bridge girder construction comprising a cross beam member having a take-off rail is disclosed. In this bridge girder construction device, the vertical beam member is carried into the side space of the bridge girder construction section, and then the horizontal beam member is swung in the direction spanned between the upper and lower lines, so that the horizontal device is moved along the horizontal rail. It is moved to the railway line.

Japanese Patent No. 4405958

  In the bridge girder construction apparatus described in Patent Document 1, it is necessary to keep the horizontal rail in order to safely move the horizontal apparatus laterally. In the apparatus described in Patent Document 1, a safety beam is secured by maintaining the horizontal of the horizontal rail by installing a receiving beam below the horizontal beam member and finely adjusting the height of each position of the horizontal beam member. Yes. However, in the apparatus described in Patent Document 1, since it is necessary to install a receiving beam below the horizontal beam member every time it is moved laterally, the installation and removal of the receiving beam is necessary in railway construction where construction time is restricted at night. There is a problem that the construction labor for the construction increases and the work efficiency is poor. In addition, in this apparatus, it is necessary to move the vehicle to the vicinity of the bridge girder erection section by a track motor car.

  Accordingly, an object of the present invention is to provide a material conveying device and a material conveying method that can improve work efficiency during lateral movement while ensuring safety in conveying materials in a track. To do.

  The material carrying device according to claim 1 is attached to the elongate frame, a traveling wheel attached to the frame, capable of traveling on a pair of rails, a traveling motor for applying driving force to the traveling wheel, and the frame. Connected to multiple horizontal wheels, a horizontal motor that applies driving force to multiple horizontal wheels, a pair of suspension members that suspend material up and down below the gantry, and multiple horizontal wheels A plurality of lifting devices that lift and lower the plurality of horizontal wheels with respect to the gantry, and the horizontal wheels are configured such that the rotation shaft is rotatable in a horizontal plane, and the pair of suspension members are independent of each other. The lower end portion of the horizontal wheel at the maximum rising position by the lifting device is higher than the lower end portion of the traveling wheel, and the lower end portion of the horizontal wheel at the maximum lowering position by the lifting device. From the lower end of the traveling wheel Lower it and said.

  In this material transport device, the lower end of the horizontal wheel at the maximum ascending position by the lifting device is higher than the lower end of the traveling wheel, and the lower end of the horizontal wheel at the maximum lowered position by the lifting device is the lower end of the traveling wheel. It is comprised so that it may become lower than this, and a material conveyance apparatus can be moved laterally using a plurality of side wheels. In addition, a plurality of lifting devices are respectively connected to the plurality of horizontal wheels, and the plurality of horizontal wheels are moved up and down with respect to the frame, so that the frame can be kept horizontal without using a receiving beam or the like. Therefore, according to this material conveyance device, it is possible to improve work efficiency during lateral movement while ensuring safety.

  Moreover, in the material conveying apparatus of Claim 2, each rotating shaft of a preparatory wheel can be independently rotated within a horizontal surface. According to this configuration, it is possible to realize various traveling modes such as traveling in an oblique direction in plan view of the material transporting device, so that obstacles and the like are avoided even in a track track where the movable range is narrow. The material carrying device can be moved laterally.

  Moreover, in the material conveyance apparatus of Claim 3, a horizontal wheel is a no-puncture tire of a solid structure. According to this configuration, work stoppage caused by tire puncture can be prevented, so work efficiency and safety during lateral movement can be improved.

  The material transport method according to claim 4 is a material transport method for moving a material to a construction area using the material transport device described above, wherein the material is provided by a suspension step of suspending the material on the suspension member and the suspension member. A hoisting process for lifting the hoisting wheel, a driving process for rotating the driving wheel by a driving motor and moving the material conveying device to the side of the construction area in a state where the hoisting wheel is raised with respect to the ground surface, In a state where the rotation axis of the wheel is directed in a direction intersecting the direction in which the work area exists, the first grounding step of lowering the horizontal wheel by the lifting device and grounding the horizontal wheel by the lifting device and the horizontal by the lifting device The lower end of the take-up wheel is lowered below the lower end of the traveling wheel, and the take-off wheel lowering step for causing the traveling wheel to float with respect to the pair of rails, and the elevating device Adjust the height 1 including an adjustment process, a horizontal preparative wheel is driven to rotate by Yokoto motor, a first Yokoto step of moving the material handling apparatus construction region.

  In this material transporting method, the height of the horizontal wheel is adjusted by the lifting device so that the gantry is horizontal, and the horizontal wheel is driven to rotate by the horizontal motor to move the material transport device to the construction area. ing. Thus, during lateral movement, the material can be safely moved laterally without using a receiving beam or the like by adjusting the gantry to be horizontal by the lifting device. Therefore, according to this material conveyance method, it is possible to improve work efficiency during lateral movement while ensuring safety.

  Further, the material transporting method according to claim 5 further includes an installation step of suspending the material while keeping it horizontal by the suspension member and installing the material in the construction area after the first pre-emption step. According to such a method, the work efficiency of material installation can be improved while ensuring safety.

  Moreover, in the material conveyance method of Claim 6, between the lifting process and the traveling process, the height of the horizontal wheel is raised by the lifting device so that the gantry is horizontal with the horizontal wheel being grounded. A second adjustment step for adjusting, a second horizontal step for rotating the horizontal wheels by a horizontal motor, and moving the material conveying device onto a pair of rails; A second grounding step of grounding the traveling wheels to the pair of rails. In this case, since the material transport device can be moved on the rail while the material transport device is adjusted to be horizontal, it is possible to improve the material transport efficiency while ensuring safety. it can.

  Moreover, in the material conveyance method of Claim 7, before the 1st earthing | grounding process, the process of laying a railroad lining in the position removed from a pair of rail is further included. In this case, the traveling area of the side wheel can be flattened by track lining, and safety can be ensured.

  ADVANTAGE OF THE INVENTION According to this invention, in the conveyance of the material in a track track, the work efficiency at the time of a lateral movement can be improved, ensuring safety | security.

It is a side view of the material conveyance apparatus which concerns on one Embodiment of this invention. It is a top view of the material conveyance apparatus which concerns on one Embodiment of this invention. It is sectional drawing of the material conveyance apparatus along the III-III line of FIG. It is a side view explaining the maximum raising position of a pre-rolling wheel. It is a side view explaining the maximum descent position of a side wheel. It is a side view explaining the method to adjust a mount frame horizontally with a raising / lowering apparatus. It is a top view explaining the whole material conveyance method concerning one embodiment of the present invention. (A) is a side view explaining a lifting process, (b) is a side view explaining a lifting process. It is process drawing explaining the material conveyance procedure which concerns on one Embodiment of this invention. It is process drawing explaining the procedure following FIG. It is process drawing explaining the procedure following FIG. (A) is a side view explaining the installation process of PC construction girder, (b) is a side view explaining the process after PC construction girder installation. It is a figure which shows the relationship with an electric stop time zone when a track closed time zone.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same or an equivalent part, and the overlapping description is abbreviate | omitted.

  The material transport device 1 is a device that transports construction materials to a construction area. FIG. 1 is a side view of the material transport device 1 according to the present embodiment, and FIG. 2 is a plan view thereof. FIG. 3 is a cross-sectional view taken along line III-III in FIG. Below, the material conveyance apparatus 1 demonstrates as what conveys the construction girder B as construction material. The construction girder B is, for example, a steel construction girder or a PC (prestressed concrete) girder.

  As shown in FIGS. 1 to 3, the material transport device 1 includes a long gantry 10 that extends in a substantially horizontal direction. As shown in FIGS. 2 and 3, the gantry 10 includes a first frame 10 </ b> A, a second frame 10 </ b> B, and a joint material 10 </ b> C. The first frame 10 </ b> A and the second frame 10 </ b> B are elongate members that are disposed at side positions of the gantry 10 and extend in the extending direction of the gantry 10. Rails 10D extending in the extending direction of the first frame 10A and the second frame 10B are provided on the upper surfaces of the first frame 10A and the second frame 10B. The joint material 10C is disposed substantially horizontally between the steel materials 10A and 10B. The joint material 10C is fixed to the first frame 10A and the second frame 10B by, for example, welding.

  A pair of suspension members 11 are provided on the upper surface of the gantry 10. The suspension member 11 is a member that suspends the work girder B so that it can be moved up and down below the gantry 10, and is movable independently in the longitudinal direction of the gantry 10. The suspension member 11 includes a carriage part 11A, a support part 11B, a girder part 11C, a chain block 11D, a suspension girder 11E, and a lifting bracket 11F. A bolt hole 11G is formed in the lifting bracket 11F.

  The carriage unit 11A has a substantially rectangular parallelepiped shape and is disposed on the rail 10D. The cart unit 11 </ b> A has wheels at the lower part, and travels on the rail 10 </ b> D by the wheels. When the carriage unit 11A travels on the rail 10D, the suspension member 11 moves in the longitudinal direction of the gantry 10. The support part 11B is fixed to the upper part of the carriage part 11A and supports the beam part 11C. The girder portion 11 </ b> C is a long member that is fixed above the carriage portion 11 </ b> A by the support portion 11 </ b> B and extends in the width direction of the gantry 10. The length of the girder portion 11 </ b> C in the longitudinal direction is slightly longer than the width of the gantry 10. A chain block 11D is attached to both ends of the beam portion 11C, and the suspension beam 11E is suspended by the chain block 11D. A suspension girder 11E is suspended from the chain block 11D. The chain block 11D includes a winch (not shown), and the hanging girder 11E can be moved up and down by the winch.

  The hanging girder 11E is provided with a lifting metal fitting 11F, and the construction girder B is fixed to the hanging girder 11E by inserting a bolt into the bolt hole 11G of the lifting metal fitting 11F. When the construction beam B is suspended by the suspension member 11, the load by the construction beam B is supported by the first frame 10A and the second frame 10B.

  Traveling wheels 14 </ b> A to 14 </ b> D are provided below the gantry 10. The traveling wheels 14 </ b> A to 14 </ b> D are wheels for traveling on the traveling rail L and are placed on the traveling rail L. The material conveyance device 1 includes a traveling motor M1 that applies driving force to the traveling wheels 14A to 14D. The travel motor M1 is driven to rotate the travel wheels 14A to 14D, so that the material transport device 1 self-travels on the travel rail L by the travel wheels 14A to 14D. The traveling wheels 14A and 14B and the traveling wheels 14C and 14D are connected by wheel shafts 15A and 15B, respectively. The wheel shafts 15 </ b> A and 15 </ b> B swing along a horizontal plane including the wheel shaft 15 with the center position as a fulcrum. With such a configuration, the material transport device 1 can travel along the travel rail L even when the travel rail L is curved.

  On the lower side of the four corners of the gantry 10, side wheels 16A to 16D are provided. The side wheels 16 </ b> A to 16 </ b> D are wheels for causing the material transport device 1 to travel in a direction that intersects (for example, orthogonally intersects) the direction in which the construction area exists. The horizontal wheels 16A to 16D are configured such that the directions of their respective rotation axes (that is, the axles of the horizontal wheels 16A to 16D) can be changed in a horizontal plane. That is, the direction of the pre-rolling wheels 16A to 16D can be changed so as to change the traveling direction of the material transport device 1. The material conveyance device 1 includes a pre-emption motor M2 that applies a driving force to the pre-emption wheels 16A to 16D. The material transport device 1 is self-propelled by the pre-rolling wheels 16A to 16D by driving the pre-preparation motor M2 and rotating the pre-preparation wheels 16A to 16D.

  Moreover, the material conveyance apparatus 1 is provided with the turning motor which is not shown in figure which changes the direction of the rotating shaft of the horizontal wheels 16A-16D within a horizontal surface. The lateral wheels 16A to 16D are configured to be capable of turning 180 degrees in the horizontal plane with the direction of the rotation axis independently. The material conveying apparatus 1 is provided with four turning motors, and each turning motor turns the four side wheels 16A to 16D, respectively. In addition, as the steered wheels 16A to 16D, for example, solid punctured tires can be used.

Lifting devices 18 </ b> A to 18 </ b> D are provided at four corners of the gantry 10. In the gantry 10, the lifting device 18A~18D is respectively installed position _P A to P _D position provided. Moreover, the raising / lowering apparatuses 18A-18D are respectively connected to the corresponding side wheels 16A-16D. Lifting device 18A~18D is a device for lifting and lowering with respect to the installation position _P A to P _D connected by Yokoto wheels 16 A- 16 D. The elevating devices 18A to 18D have, for example, built-in hydraulic cylinders, and elevate the horizontal wheels 16A to 16D with hydraulic oil from the hydraulic pump.

  FIG. 4 is a side view illustrating the maximum ascending position of the steered wheels 16A to 16D. As shown in FIG. 4, the lower end portions of the horizontal wheels 16 </ b> A to 16 </ b> D at the maximum ascending positions by the elevating devices 18 </ b> A to 18 </ b> D are held at positions higher than the lower end portions of the traveling wheels 14 </ b> A to 14 </ b> D. For this reason, in the state where the intercepting wheels 16A to 16D are raised to the maximum ascent position by the elevating devices 18A to 18D, the traveling wheels 14A to 14D are grounded to the traveling rail L and the capturing wheels 16A to 16D are brought to the ground surface. It is supported in a floating state.

  On the other hand, FIG. 5 is a side view for explaining the maximum lowered position of the side wheels 16A to 16D. As shown in FIG. 5, the lower end portions of the side wheels 16A to 16D at the maximum lowered position by the elevating devices 18A to 18D are held at positions lower than the lower end portions of the traveling wheels 14A to 14D. For this reason, in the state where the side wheels 16A to 16D are lowered to the maximum lowered position by the elevating devices 18A to 18D, the side wheels 16A to 16D are grounded and the traveling wheels 14A to 14D are connected to the traveling rail L. Supported in a floating state.

Moreover, the raising / lowering apparatuses 18A-18D can raise / lower the connected side-wheel 16A-16D each independently. When the gantry 10 is inclined, the side wheels 16A to 16D connected to a relatively low installation position are lowered by the lifting devices 18A to 18D, or connected to a relatively high installation position. The gantry 10 is held horizontally by raising the horizontal wheels 16A to 16D being lifted by the lifting devices 18A to 18D. For example, FIG. 6 shows a state in which the gantry 10 is tilted with respect to the traveling rail L. In this case, as shown in FIG. 6, so that the installation position P _A of the gantry 10 is held higher than the installation position P _C. In this case, lowers the Yokoto wheels 16C by the elevating device 18C, by maintaining a high position of the installation position P _C, it is possible to adjust the frame 10 horizontally.

  Next, the material conveyance method using the material conveyance apparatus 1 which concerns on this embodiment is demonstrated using FIGS. FIG. 7 is a diagram illustrating the entire work process of the material transport method according to the present embodiment. A track track region R in FIG. 7 is a region in the track line of the business line, and a pair of travel rails L1 and a pair of travel rails L2 are provided in this region. In the present embodiment, description will be made assuming a construction in which the construction beam B is installed in the construction area C on the traveling rail L1 in order to double the traveling rail. Since the track track area R is an area within the track line of the business line, the track track area R cannot be entered while the train is operating. Therefore, the material transport device 1 stands by in the carry-in area Y until the train operation ends.

  In the material transport method according to the present embodiment, first, as shown in FIG. 7, the track lining 20 is laid at a position deviated from the travel rail L1 and the travel rail L2 in the track track region R. Here, the position deviated from the traveling rail L1 and the traveling rail L2 is a position where the traveling rail L1 and the traveling rail L2 are not provided. Specifically, the positions outside the rails and between the rails are defined as positions. Show. The track lining 20 is a member for eliminating a step so that the material transport device 1 can move laterally across the traveling rail L1 and the traveling rail L2, and has a thickness that is equal to or less than the height of the rail L1 and the traveling rail L2. Have. In addition, in the carry-in area Y, the construction beam B is connected to the suspension member 11 and suspended (suspending process). FIG. 8 is a diagram showing this suspension process. In the suspension process, as shown in FIG. 8A, the material transport device 1 lowers the suspension girder 11 </ b> E by the chain block 11 </ b> D of the suspension member 11. Next, the lifting bracket 11F and the construction beam B are bolted. Thereafter, the suspension member 11 suspends the construction beam B. Then, as shown in FIG.8 (b), the material conveyance apparatus 1 raises the construction girder B by raising the suspension girder 11E with the chain block 11D of the suspension member 11 (lifting process). The above-described suspension process and the lifting process are performed in a state in which the side wheels 16A to 16D are grounded and the traveling wheels 14A to 14D are levitated.

  The construction area C is in a state where the traveling rail L1 is removed and excavated for the construction girder B installation. For this reason, the construction beam B cannot be transported by traveling the material transport device 1 on the travel rail L1. Therefore, the pre-roller wheel is rotated by the pre-emption motor M2, and the material transport device 1 is moved from the carry-in region Y to the region A on the travel rail L2 as shown in FIG. 9 (second pre-emption step). At the time of this 2nd side taking process, as shown in FIG. 6, it adjusts so that the base 10 may become horizontal by raising / lowering the side wheels 16A-16D independently by the raising / lowering apparatus 18A-18D (2nd adjustment). Process).

  After moving to the region A of the traveling rail L2, the material transporting device 1 raises the side wheels 16A to 16D by the lifting devices 18A to 18D and grounds the traveling wheels 14A to 14D to the traveling rail L2 (second grounding). Process). Thereafter, the elevating devices 18A to 18D are further raised to the side wheels 16A to 16D, the positions of the side wheels 16A to 16D are raised from the positions of the traveling wheels 14A to 14D, and the side wheels 16A to 16D are moved with respect to the ground surface. To raise.

  Next, as shown in FIG. 10, the material transport device 1 rotates the traveling wheels 14 </ b> A to 14 </ b> D by the traveling motor M <b> 1 with the side wheels 16 </ b> A to 16 </ b> D raised with respect to the ground surface, and the traveling rail L <b> 2. It travels above and moves to the side of the construction area C of the construction beam B (traveling process). Thereafter, in the state where the rotation axis of the side wheels 16A to 16D is directed in the direction intersecting the direction in which the construction area C exists, the side wheels 16A to 16D are lowered by the elevating devices 18A to 18D. The wheels 16A to 16D are grounded (first grounding step). Thereafter, the elevating devices 18A to 18D are further lowered by the side wheels 16A to 16D, and the lower ends of the side wheels 16A to 16D are pushed down to be lower than the lower ends of the traveling wheels 14A to 14D. 14D is lifted with respect to the traveling rail L2 (horizontal wheel lowering step). Under the present circumstances, it adjusts so that the mount frame 10 may become horizontal by raising / lowering the horizontal collection wheels 16A-16D independently by the raising / lowering apparatus 18A-18D (1st adjustment process).

  Thereafter, as shown in FIG. 11, the side wheels 16 </ b> A to 16 </ b> D are rotationally driven by the side motor M <b> 2, and the material transport device 1 is laterally moved so as to straddle the construction area C (first side step). During this lateral movement, the gantry 10 may be adjusted so as to keep the level by raising and lowering the lateral wheels 16A to 16D independently by the lifting devices 18A to 18D.

  Next, the material transport apparatus 1 installs the construction beam B in the construction area C by the hanging member 11 (installation process). That is, as shown in FIG. 12A, the material transport device 1 lowers the suspension girder 11E while keeping the construction girder B horizontal by the chain block 11D of the suspension member 11, and moves the construction girder B to the construction area C. Install. Thereafter, as shown in FIG. 12B, the bolts connecting the lifting bracket 11F and the construction beam B are removed to release the connection, and then the suspension beam 11E is raised by the chain block 11D of the suspension member 11. In this way, the construction beam B is installed in the construction area C.

  As described above, in the material transport device 1 according to the present embodiment, the lowest one of the lower end portions of the side wheels 16A to 16D at the maximum ascending position by the lifting devices 18A to 18D is the traveling wheels 14A to 14D. Higher than the highest one of the lower ends of the wheels, and the highest one of the lower ends of the side wheels 16A to 16D at the maximum lowered position by the lifting devices 18A to 18D is the highest of the lower ends of the traveling wheels 14A to 14D. It is configured to be lower than the lower one. Therefore, the material conveyance apparatus 1 can be made to travel in a direction that intersects the direction in which the construction area C exists using the plurality of side wheels 16A to 16D. Further, the plurality of lifting devices 18A to 18D are connected to the plurality of side wheels 16A to 16D, respectively, and the plurality of side wheels 16A to 16D are moved up and down with respect to the gantry 10 without using a receiving beam or the like. The gantry 10 can be kept horizontal. Therefore, according to the material conveyance apparatus 1 which concerns on this embodiment, the work efficiency at the time of a lateral movement can be improved, ensuring safety | security.

  Moreover, in this embodiment, since the track | orbit track area | region R in which the construction area | region C exists is an area | region in the track line of a business line, the time which can work in the track | truck track area | region R is restrict | limited severely. In the case of a method in which a heavy machine such as a crane is carried into the track track area R and the work girder B is installed in the work area C as in the prior art, the crane arm or the like may touch the overhead wire in the track track area R. Therefore, the installation work of the construction girder B was performed in the “power feeding stop time zone” which is a time zone during which power transmission to the overhead line is stopped. Since the “power stoppage time zone” is often limited to a very short time, the conventional method using a crane or the like has a problem that the work time is short and the work efficiency is low.

  In this respect, according to the material transport device 1 of the present embodiment, the construction beam B is suspended by the pair of suspension members 11 so that it can be lifted and lowered below the gantry. Can be transported and installed. For this reason, the material transport device 1 has no fear of touching the overhead line in the track track region R, and in the “track closed time zone” in which the track is closed so that the train cannot enter the work section, the construction beam B Can be installed. As shown in FIG. 13, the “track closing time zone” is a longer time zone than the “power feeding stop time zone”, so that the work efficiency of the construction beam B installation can be improved.

  Further, in the material transport device 1, the carriage unit 11A travels on the rail 10D, whereby the pair of suspension members 11 can be independently moved in the longitudinal direction of the gantry. Thereby, the construction girder B of a different length can be suspended by adjusting the distance between the pair of suspension members 11.

  Furthermore, since the material transport apparatus 1 includes the travel motor M1 that rotationally drives the travel wheels 14A to 14D, the material transport apparatus 1 can travel on its own. Therefore, since it is not necessary to use a power truck or the like that pulls the material transport device 1, work efficiency can be improved.

  Moreover, in the material conveyance apparatus 1 of this embodiment, since each rotating shaft of the preparatory wheels 16A-16D can be independently rotated within a horizontal plane, the material conveyance apparatus 1 is obliquely viewed in plan view. Various traveling modes such as traveling in a direction can be realized, and the material transport device 1 can be moved laterally while avoiding an obstacle or the like even in a track orbit having a narrow movable range.

  Moreover, the material conveyance apparatus 1 which concerns on this embodiment uses the no-puncture tire of a solid structure as the side wheels 16A-16D. For this reason, when the material conveyance apparatus 1 is moved laterally, it is possible to prevent the operation stop caused by the tire puncture from occurring.

  Furthermore, in the material conveyance method according to the present embodiment, the heights of the horizontal wheels 16A to 16D are adjusted by the elevating devices 18A to 18D so that the gantry 10 is horizontal, and the horizontal wheels 16A are adjusted by the horizontal motor M2. ˜16D is rotationally driven to move the material transport device 1 to the construction area C. As described above, according to the material transport method according to the present embodiment, during horizontal movement, by adjusting the gantry 10 to be horizontal by the elevating devices 18A to 18D, it can be safely performed without using a receiving beam or the like. Since the construction girder B can be moved laterally, according to this material transport method, it is possible to improve work efficiency during lateral movement while ensuring safety.

  Moreover, in the material conveyance method which concerns on this embodiment, in the state which grounded wheel 16A-16D was earth | grounded, the height of horizontal wheel 16A-16D is raised by raising / lowering apparatus 18A-18D so that the mount frame 10 may become horizontal. The adjustment is performed, and the horizontal wheels 16A to 16D are rotationally driven by the horizontal motor M2 to move the material transport device 1 from the carry-in area Y to the travel rail L2, so that the material transport device 1 becomes horizontal. In the adjusted state, the material transport device 1 can be moved onto the travel rail L2, and as a result, the material transport efficiency can be improved while ensuring safety.

  Further, in the material transport method in the present embodiment, by laying the track lining 20 at a position deviated from the travel rail L1 and the travel rail L2 in the track track region R, the level difference during lateral movement can be reduced. The material transport device 1 can be moved laterally safely.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, a traveling rail may be laid in the carry-in area Y. In this case, the suspension process and the lifting process described with reference to FIG. 8 are performed in a state where the traveling wheels 14A to 14D are placed on the traveling rail and the side wheels 16A to 16D are floated. In this case, a step of lowering the side wheels 16A to 16D by the elevating devices 18A to 18D and causing the traveling wheels 14A to 14D to float with respect to the traveling rail is added before the second side step. . Moreover, you may adjust so that the mount frame 10 may become horizontal by raising / lowering the horizontal collection wheels 16A-16D independently by the raising / lowering apparatus 18A-18D in this case.

  In the said embodiment, after moving the material conveyance apparatus 1 to the side of the construction area | region C, the material conveyance apparatus 1 was moved laterally to the side, However, The material conveyance apparatus 1 can be moved to arbitrary directions. it can. That is, the material transport device 1 can be moved in a desired direction by turning the rotation shafts of the horizontal wheels 16A to 16D in a specific direction by the turning motor.

  Moreover, in the said embodiment, although four turning motors are provided in order to make each taking wheel 16A-16D turn independently, respectively, only two turning motors are provided and a front wheel and a rear wheel are turned independently. May be. Moreover, you may change the direction of a rotating shaft using other motive power, such as a crane, without providing a turning motor, and you may change the direction of the rotating shaft of the side wheels 16A-16D manually.

  Moreover, the installation positions of the horizontal wheels 16A to 16D and the lifting devices 18A to 18D are not limited to the four corners of the gantry 10, and can be installed at arbitrary positions. Further, the track lining 20 can be laid at an arbitrary timing as long as it is before the first grounding step.

DESCRIPTION OF SYMBOLS 1 ... Material conveying apparatus 10 ... Base 10A ... 1st frame 10A
10B ... 2nd frame 10B
10C ... Jointing material 10D ... Rail 11 ... Hanging member 11A ... Carriage part 11B ... Supporting part 11C ... Girder part 11D ... Chain block 11E ... Hanging girder 11F ... Lifting bracket 11G ... Bolt holes 14, 14A, 14B, 14C, 14D ... Traveling Wheels 16, 16A, 16B, 16C, 16D ... Traverse wheel 18 ... Lifting device B ... Construction girder C ... Construction area L, L1, L2 ... Traveling rail M1 ... Traveling motor M2 ... Tracing motor R ... Track track area Y ... Loading area

Claims (7)

A long frame,
A traveling wheel attached to the mount and capable of traveling on a pair of rails;
A travel motor for applying a driving force to the travel wheels;
A plurality of side wheels attached to the mount;
A preemption motor that applies a driving force to the plurality of preparatory wheels;
Below the gantry, a pair of suspending members that suspend material up and down, and
A plurality of lifting devices that are respectively connected to the plurality of side wheels and lift the plurality of side wheels with respect to the gantry;
With
The horizontal wheel has a rotating shaft that is rotatable in a horizontal plane,
The pair of suspension members are provided independently to be movable in the longitudinal direction of the gantry,
The lower end portion of the side wheel at the maximum ascending position by the lifting device is higher than the lower end portion of the traveling wheel, and the lower end portion of the side wheel at the maximum lowered position by the lifting device is the lower end portion of the traveling wheel. Material conveying device, characterized by being lower than.   The material conveyance device according to claim 1, wherein each of the horizontal wheels has a rotation shaft that is independently rotatable in a horizontal plane.   The material conveying apparatus according to claim 1 or 2, wherein the steered wheel is a solid punctured tire. A material carrying method for moving material to a construction area using the material carrying device according to any one of claims 1 to 3,
A suspension step of suspending materials on the suspension member;
A lifting step of lifting the material by the suspension member;
In the state where the steered wheel is raised with respect to the ground surface, the traveling wheel is driven to rotate by the traveling motor, and the material conveying device is moved to the side of the construction area, and
First grounding for lowering the horizontal wheel by the lifting device and grounding the horizontal wheel with the rotating shaft of the horizontal wheel oriented in a direction intersecting the direction in which the construction area exists Process,
A lowering step of lowering the lower end of the steered wheel than the lower end of the traveling wheel by the elevating device, and causing the traveling wheel to float with respect to the pair of rails;
A first adjustment step of adjusting the height of the side wheel by the lifting device so that the gantry is horizontal;
A material transporting method comprising: a first steering step of rotating the steered wheel by the steerer motor and moving the material transporter to the construction area.   The material conveyance method according to claim 4, further comprising an installation step of suspending the material while being kept horizontal by the suspension member and installing the material in the construction area after the first pre-emption step. Between the lifting process and the traveling process,
A second adjustment step of adjusting the height of the horizontal wheel by the lifting device so that the gantry is horizontal in a state where the horizontal wheel is grounded;
A second side step of rotating the side wheels by the side motor and moving the material conveying device onto the pair of rails;
The material conveying method according to claim 4, further comprising: a second grounding step in which the lifting wheel is lifted by the lifting device and the traveling wheel is grounded to the pair of rails.   The material conveying method according to claim 4 or 5, further comprising a step of laying a track lining at a position separated from the pair of rails before the first grounding step.

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