JP2014131905A - Monorail bogie and rail transport system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bogie that is excellent in traveling uphill with a simple structure and can be readily installed on an uneven ground in a mountain or forest.SOLUTION: Included are a housing 11, three driving wheels 12a, 12b, and 12c that are supported by the housing 11 and are equidistantly pressed against the periphery of a monorail 21 in a circumferential direction, compression coil springs 14a and 14b that energize the driving wheels 12b and 12c in the direction of the monorail 21, and a motor M1 that drives the driving wheels 12a, 12b, and 12c. Herein, a drive unit including the driving wheels 12a, 12b, and 12c is preferably disposed back and force in an advancing direction of a bogie 1. From the viewpoint of suppressing a deformation of the monorail 21 due to pressures from the driving wheels 12a, 12b, and 12c, driven wheels 16a and 16b that come into contact with the monorail 21 and roll are preferably further included between the driving wheels 12a and 12b and between the driving wheels 12a and 12c.

Description

  TECHNICAL FIELD The present invention relates to a cart that self-propels over a single rail and a track transport device including the same.

  For example, in the forestry industry, carrying equipment and materials to the work site in the mountains and carrying out the harvested timber are very hard work, and the burden on workers is great. In addition, coupled with the recent aging of forestry workers, there is a demand for an apparatus that can easily carry equipment, materials, and felled timber.

  In addition, due to the recent increase in protection of the natural environment, it is also desired that the transport device is a device that can be withdrawn without destroying the forest.

  Until now, in orchards and the like on sloping terrain, a device has been used in which a rail made of a square pipe is installed and a rail carriage is run using this rail as a guide. For example, in Patent Document 1, a square columnar rail is sandwiched from above and below by an upper wheel and a lower wheel provided on a transport vehicle, and a pinion provided on the transport vehicle is meshed with a rack welded to the side of the rail, Techniques have been proposed in which a transport vehicle is moved by rotationally driving a pinion.

  However, this proposed technique requires a pinion and a rack in addition to the rail and the upper and lower wheels, and has a large number of device parts and a complicated mechanism.

  Further, in Patent Documents 2 and 3, a pair of opposed drives that are installed in an athletic field, etc., are mounted on devices such as cameras and follow a player, and magnetically attract and roll on upper and lower rails. Proposals have been made to provide wheels.

  However, in the proposed technique in which the driving wheel is magnetically attracted to the rail, when it is provided in rough forest or the like, magnetite powder (sand iron) or metal debris contained in the ground is applied to the driving wheel or rail. There is a possibility that the traveling body cannot smoothly travel because magnetic attraction is considered.

Japanese Patent Laid-Open No. 61-85263 Japanese Patent Laid-Open No. 9-2255 Japanese Patent Laid-Open No. 10-16771

  The present invention has been made in view of the conventional problems as described above, and an object of the present invention is to use a cart that has a simple structure, excellent climbing ability, and that can be easily installed in rough forests and the like. It is to provide an orbital transport device.

  A single-rail trolley according to the present invention that achieves the above-described object (hereinafter sometimes simply referred to as a “trolley”) is a trolley that is self-propelled across a cylindrical single-rail, and includes a housing and the housing. And at least three driving wheels that are pressed against the outer circumference of the single rail at equal intervals in the circumferential direction, biasing means that biases at least one of the driving wheels in the direction of the single rail, and the driving wheel Drive means for driving the motor.

  Here, it is preferable that the driving unit including the at least three driving wheels is provided before and after the traveling direction of the carriage.

  Further, from the viewpoint of suppressing the deformation of the single rail due to pressure from the drive wheel or the like, at least two driven wheels that roll in contact with the single rail are further provided between the at least three drive wheels. Is preferred.

  According to the present invention, there is provided a track having a track having a columnar single rail and a cart that is self-propelled across the single rail, and the single-rail cart described above is used as the cart. An apparatus is provided.

  Here, from the viewpoint of suppressing the swing of the carriage around the single rail, a pair of sliding members that are spaced apart from each other with the track interposed below the single rail may be provided.

  Alternatively, the track further includes an auxiliary rail parallel to the single rail below the single rail, and a pair of auxiliary wheels arranged to face each other so as to roll side surfaces of the auxiliary rail on the carriage. It may be provided.

  It is preferable that the single rail and the auxiliary rail serve as a power return line to the driving unit.

  In addition, a plurality of pillars that are driven into the ground at predetermined intervals and attached to the single rail are provided on the track, and the pillars are separably attached to a cylindrical main body part and one end side of the main body part. A plurality of tongue pieces by a plurality of incisions formed toward the other end side at a predetermined interval in the circumferential direction. You may use what was formed.

  Alternatively, the column has a columnar main body as the support, and a plurality of tongue pieces are formed at the end of the main body by a plurality of incisions formed at predetermined intervals in the circumferential direction toward the other end. A cylindrical restraining member is fitted on the outer periphery of the tongue piece portion so that the tongue piece portion does not spread outward in the radial direction. You may use what moves upwards, remove | deviates from the outer periphery of the said tongue piece part, and the said tongue piece part spreads to radial direction outward.

  Since the cart of the present invention is driven by at least three drive wheels that are pressed against the outer circumference of the single rail at equal intervals in the circumferential direction, it can easily carry heavy objects such as felled wood and work equipment / materials. Also excellent.

  Moreover, if the drive part which consists of the said at least 3 drive wheel is provided before and behind the advancing direction of the said trolley | bogie, the conveyance property and climbability of a heavy load will further improve.

  In addition, when at least two driven wheels that roll in contact with the single rail are further provided between the at least three drive wheels, deformation of the single rail due to pressure from the drive wheels or the like is suppressed.

  Since the track transportation device of the present invention has a simple structure in which a carriage is self-propelled on a single rail, it can be easily installed in rough forests.

  Here, if a pair of sliding members that are spaced apart from each other and sandwich the track below the single rail is provided on the cart, the swing of the cart around the single rail is suppressed.

  Alternatively, the track is further provided with an auxiliary rail parallel to the single rail below the single rail, and a pair of auxiliary wheels disposed on the carriage so as to roll each side of the auxiliary rail. Also by providing, the swaying of the bogie around the single rail is suppressed, and further stable running can be obtained.

  If the single rail and the auxiliary rail are used as a return line of electric power to the driving means, the carriage can be surely traveled even at a long distance.

  Provided to the track are a plurality of pillars that are driven into the ground at predetermined intervals and to which the single rail is attached, and as the pillars, a columnar main body part and a sharpened part that is separably attached to one end side of the main body part If the end of the main body is formed with a tongue piece at the end to which the sharpened portion is attached, even if the track is installed in a wet ground where the ground is loose, Settlement is suppressed and deformation of the track is suppressed.

  Alternatively, the column has a columnar main body as the support, and a plurality of tongue pieces are formed at the end of the main body by a plurality of incisions formed at predetermined intervals in the circumferential direction toward the other end. A cylindrical restraining member is fitted on the outer periphery of the tongue piece portion so that the tongue piece portion does not spread outward in the radial direction. Even if the tongue piece part moves upward and is disengaged from the outer periphery of the tongue piece part and the tongue piece part spreads outward in the radial direction, settling of the column is suppressed and deformation of the track is suppressed.

It is a vertical sectional view of a cart and a track transportation device according to the present invention. It is a side view of the trolley and track transportation device concerning the present invention. It is a vertical sectional view showing other embodiments of a cart and a track transportation device according to the present invention. It is a side view which shows other embodiment of the trolley | bogie and track transportation apparatus which concern on this invention. It is a figure explaining the installation method of a support | pillar. It is a figure explaining the installation method of the support | pillar of another form. It is a figure explaining the installation method of a track. It is a figure explaining the other installation methods of a track. It is a copy figure of a photograph when the track transportation device concerning the present invention is temporarily installed in a forest.

  Hereinafter, the single rail carriage and the track transportation device according to the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments.

  FIG. 1 is a vertical sectional view of a single rail carriage and a track transportation device according to the present invention, and FIG. 2 is a side view thereof. The single rail bogie shown in FIG. 1 includes a track 2 having a columnar single rail 21 and a bogie 1 that travels over the single rail 21. The carriage 1 includes two drive units D1 and D2 before and after the traveling direction in the housing 11 (see FIG. 2). As shown in FIG. 1, the drive unit D1 is supported by the housing 11 and has three drive wheels 12a, 12b, and 12c that are pressed against the outer periphery of the single rail 21 at equal intervals in the circumferential direction, and bearings 56a and 56b. Compression coil springs (biasing means) 14a, 14b and driving wheels 12a, 12b, 12c, which are interposed between the plates 57a, 57b, respectively, and bias the driving wheel 12b and the driving wheel 12c in the direction of the single rail 21. And a motor M1 for rotating the motor.

  An auxiliary rail 22 is further provided below the single rail 21 of the track 2 in parallel with the single rail 21. A pair of left and right auxiliary wheels 13a and 13b are provided below the two drive units D1 and D2, respectively. The pair of left and right auxiliary wheels 13a and 13b roll with the side surface of the auxiliary rail 22 sandwiched from both sides. As will be described later, since the single rail 21 and the auxiliary rail 22 are also used as a return line for supplying power to the motors M1 and M2, the single rail 21 and the auxiliary rail 22 have conductivity, and the auxiliary rail. 22 is attached to the grid 24 in an electrically insulated state. In addition, a conductive brush 15 (shown in FIG. 2) is provided in the housing 11 so as to contact the auxiliary rail 22.

  In FIG. 1, the driving force of the motor M1 is transmitted from the driving shaft (not shown) of the motor M1 to the rotating shaft 52 in the gear box 51, and the driving wheel 12a and the bevel gears 53a and 53b rotate. The driving force is transmitted to the rotating shaft 55a by the engagement of the bevel gear 53a and the bevel gear 54a, and the driving wheel 12b rotates. Similarly, the driving force is transmitted to the rotary shaft 55b by the meshing of the bevel gear 53b and the bevel gear 54b, and the drive wheel 12c rotates. The other drive unit D2 has the same configuration.

  The driving wheel 12b and the driving wheel 12c are urging forces of the compression coil springs 14a and 14b, and the driving wheel 12a is in pressure contact with the single rail 21 by its own weight. In addition, since the pressure contact positions of the single rails 21 of the three drive wheels 12a, 12b, 12c are equally spaced in the circumferential direction, the frictional force between the drive wheels 12a, 12b, 12c and the single rail 21 is large, and the carriage No. 1 travels efficiently on the single rail 21 and has high climbability. In addition, since the carriage 1 includes two sets of drive units D1 and D2 in the front-rear direction, for example, heavy materials such as construction materials and equipment for forest roads and felled timber can be transported. It has been confirmed that the prototype device created by the inventor can carry up to 200 kg so far. Furthermore, since the horizontal position of the carriage 1 is determined by the pair of auxiliary wheels 13a and 13b, the movement of the carriage 1 around the single rail 21 during traveling can be suppressed. The load by the compression coil springs 14a, 14b is usually preferably about several thousand N, more preferably 4000 N or more.

  The carriage 1 can be easily attached to and detached from the single rail 21 by releasing the urging force of the compression coil springs 14a and 14b on the drive wheels 12b and 12c and separating the drive wheels 12b and 12c from the single rail 21. . Specifically, the holding plates 57a and 57b holding one ends of the compression coil springs 14a and 14b are attached so as to be movable in the expansion / contraction direction of the compression coil spring by a screw member (not shown) and held by the screw member. The drive wheels 12b, 12c and the single rail 21 can be separated from each other by moving the members 57a, 57b away from the bearings 56a, 56b. The separation distance between the drive wheels 12b, 12c and the single rail 21 necessary for attaching and detaching the carriage 1 is usually about several millimeters.

  The single rail 21 and the auxiliary rail 22 also function as a return line to the motors M1 and M2. That is, a DC voltage is applied between the single rail 21 and the auxiliary rail 22, and electric power is supplied to the motors M1 and M2. Electric power is supplied from the auxiliary rail 22 as the forward line to the brush 15 (shown in FIG. 2) and the battery (not shown), and flows from the battery to the single rail 21 as the return line via the drive wheel 12a. Then, electric power is appropriately supplied from the battery to the motors M1 and M2. Thereby, the cart 1 can travel even over a long distance. Even if there is a section where power cannot be supplied, the carriage 1 can travel on its own with the battery. Furthermore, if an inverter is interposed between the battery and the motors M1 and M2, the traveling speed of the carriage 1 can be adjusted.

  Of course, a battery may be mounted on the carriage 1 to supply power to the motors M1 and M2 without using the single rail 21 and the auxiliary rails 22 as return lines to the motors M1 and M2. .

  3 and 4 show another embodiment of the cart and the track transportation device according to the present invention. FIG. 3 is a vertical sectional view of the cart and the track transportation device according to the present invention, and FIG. 4 is a side view. In addition, description is abbreviate | omitted about the same structure and member as the trolley | bogie shown in FIG.1 and FIG.2 of the trolley | bogie shown in these figures here, and only a different structure and member are demonstrated.

  The cart 1a has a circumferential center position between the driving wheel 12a and the driving wheel 12b (position facing the driving wheel 12c and the single rail 21) and a circumferential center position between the driving wheel 12a and the driving wheel 12c. Further, driven wheels 16a and 16b that contact and roll on the single rail 21 are further provided (positions facing the drive wheel 12b and the single rail 21). The driven wheels 16a and 16b may be in pressure contact with the single rail 21 by urging means, or may simply be in contact with each other. By providing the driven wheels 16a and 16b in this manner at the opposing positions of the drive wheels 12b and 12c that are pressed against the single rail 21 by the compression coil springs 14a and 14b, respectively, a hollow cylindrical shape is used as the single rail 21. Even if it is, the deformation | transformation of the cross-sectional shape of the single rail 21 is prevented effectively. The attachment position of the driven wheels 16a and 16b is not particularly limited as long as it is between the drive wheels 12a and 12b and between the drive wheels 12a and 12c. From the viewpoint of preventing the cross-sectional shape of the single rail 21 from being deformed, A position facing the wheel across the single rail 21 is desirable.

  Further, the cart 1a includes a pair of sliding members 17a and 17b instead of the driven wheels 13a and 13b of the cart 1 shown in FIGS. The sliding members 17a and 17b are rods having a rectangular cross section, and are arranged so as to be spaced apart from each other with the track 2 below the single rail 21. By the sliding members 17a and 17b, shaking around the single rail 21 of the traveling carriage 1a is suppressed. In this case, it is not necessary to provide the auxiliary rail 22 (shown in FIG. 2) for contacting the sliding members 17a and 17b on the track 2 side.

  As the material of the sliding members 17a and 17b, a material having a small friction coefficient and high wear resistance is preferable. For example, polyacetal, polyamide, PTFE, polyphenylene sulfide and the like can be mentioned, and among these, polyacetal is preferable. In addition, you may make it provide such a material with a small friction coefficient only in the opposing surface side with the track | orbit 2 of a sliding member.

  In any of the embodiments described above, the motors M1 and M2 are provided to the front drive unit D1 and the rear drive unit D2, respectively, and the drive wheels 12a, 12b, and 12c are rotated. All the drive wheels of the drive units D1 and D2 may be rotated, or one motor may be provided for each drive wheel and rotated. Alternatively, a motor may be provided for each of the corresponding front and rear drive wheels of the front and rear drive units D1 and D2 to rotate the drive wheels.

  Next, the construction of the track will be described. FIG. 5 shows an installation example of the column P. Since the orbital transportation device of the present invention is intended to be installed in rough forests or the like, it is possible to prevent deformation of the orbit 2 due to subsidence after installation even in swamps and wetlands. It is necessary. Therefore, it is preferable to use a column P having non-sinkability as shown in FIG. 5 has a hollow cylindrical main body 31 and a sharpened portion 32 that is detachably attached to one end of the main body 31. And the sharpened part 32 of the main-body part 31 is attached, and the notch 33 is formed in the edge part toward the other end side by the predetermined spacing in the circumferential direction, and, thereby, the tongue piece part 34 is formed. .

  In order to install such a support P on the ground, the support P is first driven to a predetermined depth (FIG. 5A). The depth to be driven may be determined as appropriate from the length of the column P, etc., but it is desirable to drive at least until the notch 33 enters the ground. Next, the rod-shaped member 4 is inserted from the upper end opening of the hollow cylindrical main body 31 and pressed down downward. Then, the sharp part 32 and the main body part 31 are disconnected from each other, and the sharp part 32 is positioned deeper in the ground than the main body part 31 (FIG. 5B). Thereafter, the rod-shaped member 4 is extracted, and the main body 31 is further driven (FIG. 5C). Then, the tongue piece 34 at the tip of the main body 31 spreads outward in the radial direction in the ground, and becomes a resistance to driving the column P beyond that. Thereby, even if a load is applied to the support (main body part) P in a swamp or a wetland, the support P does not further sink.

  FIG. 6 shows another embodiment of the support column. The column Pa has a hollow cylindrical main body 31, and a plurality of cuts 33 are formed at the end of the main body 31 toward the other end at predetermined intervals in the circumferential direction. A portion 34 is formed. A cylindrical restraining member 35 is fitted on the outer periphery of the tongue piece 34 so that the tongue piece 34 does not spread radially outward. When the column Pa is driven into the ground, the restraining member 35 gradually moves upward in the axial direction due to frictional resistance with the ground, and comes off the outer periphery of the tongue piece 34 (FIG. 6B). When the support column Pa is driven further into the ground, the tongue piece 34 spreads outward in the radial direction, which becomes a resistance to driving the support column Pa beyond that. Thereby, like the support | pillar P shown in FIG. 5, even if a load is applied to the support | pillar Pa in a swamp, a wetland, etc., the support | pillar Pa does not sink further.

  FIG. 7 shows an explanatory diagram in which the frame body F having the single rail 21 and the auxiliary rail 22 is attached to the column P to form the track 2. When the pillars P are installed at a predetermined interval, a laterally long frame body F having a single rail 21 and an auxiliary rail 22 is attached between these pillars to form the track 2. As shown in FIG. 7, in the frame F, the single rail 21 and the horizontal pipe 23 are positioned in parallel in the vertical direction at a predetermined interval, and a plurality of lattices 24 are provided between the single rail 21 and the horizontal pipe 23. It is repeatedly provided continuously in a “C” shape. An auxiliary rail 22 is attached to the lattice 24 in parallel with the single rail 21 at a predetermined position between the single rail 21 and the horizontal pipe 23.

  The shape of the track 2 in a plan view is not limited to a straight line, and may be a curved line. What is necessary is just to form so that the single rail 21 may continue by combining the frame body F of a straight line or a curve according to the topography of an installation place. For example, when carrying out timber from the mountains, it is preferable that the track 2 be a closed loop so that the carriage can circulate in one direction. The height of the single rail 21 from the ground can be adjusted by the length of the column P, the attachment position of the frame F to the column P, and the like. It is preferable from the viewpoint of work efficiency that the frame F is prepared in advance in a factory or the like so that it can be attached to the column P at the installation site.

  FIG. 8 is a diagram illustrating another method for installing the track. Two struts Pa are driven obliquely with respect to the ground and intersect on the ground. The frame Fa is supported at the upper part of the intersection. The frame Fa used here is different from the frame F and does not include the auxiliary rail 22 (shown in FIG. 7). Thus, by supporting the frame Fa with the two columns Pa, the sinking and deformation of the column Pa can be suppressed even when a heavy object such as wood is transported by a carriage.

  FIG. 9 shows a copy of a photograph when the track transportation device of the present invention is temporarily installed in a forest. Here, the track 2 having the single rail 21 and the auxiliary rail 22 shown in FIG. The carriage 1 is mounted on the single rail 21 of the frame F. When the carriage 1 was actually traveled in this state, the carriage 1 traveled without any problem including the ascending slope section and the curve section.

  After the transportation of materials, equipment, wood, etc. is completed, the remaining track 2 can be used as it is as a handrail or fence by removing the carriage 1 from the single rail 21. Of course, the track 2 can be easily removed. Further, if the handrail of the promenade and the upper pipe of the fence can be used as the single rail 21, the carriage 1 can be transported at any time by attaching the carriage 1 to the upper pipe of the handrail or the fence. .

  Since the cart of the present invention travels with at least three driving wheels that are in pressure contact with the outer circumference of the single rail at equal intervals in the circumferential direction, it can be easily transported by heavy objects such as felled timber and work equipment / materials. Excellent and useful. In addition, since the track transport device of the present invention has a simple structure in which a carriage is self-propelled on a single rail, it can be easily installed in rough forests and the like and is useful.

1 dolly 2 track D1, D2 drive unit M1, M2 motor (drive means)
P strut Pa strut 11 housing 12a, 12b, 12c drive wheel 13a, 13b auxiliary wheel 14a, 14b compression coil spring (biasing means)
16a, 16b Driven wheels 17a, 17b Sliding member 21 Rail 22 Auxiliary rail 31 Body portion 32 Sharp portion 33 Cut 34 Tongue piece portion 35 Restraint member

Claims (9)

It is a cart that is self-propelled across a cylindrical single rail,
A housing, at least three driving wheels supported by the housing and pressed against the outer circumference of the single rail at equal intervals in the circumferential direction, and biasing at least one of the driving wheels in the direction of the single rail A single rail carriage having a biasing means and a driving means for driving the driving wheel.   The single rail carriage according to claim 1, wherein a drive unit including the at least three drive wheels is provided in front of and behind the carriage in the traveling direction.   The single-rail carriage according to claim 1 or 2, further comprising at least two driven wheels that roll in contact with the single rail between the at least three drive wheels. A track having a cylindrical single rail, and a carriage that travels over the single rail,
A track transportation device using the single rail bogie according to any one of claims 1 to 3 as the bogie.   The track transportation device according to claim 4, wherein the carriage further includes a pair of sliding members that are opposed to each other with the track interposed below the single rail. The track further has an auxiliary rail parallel to the single rail below the single rail,
The track transportation device according to claim 4, wherein the carriage further includes a pair of auxiliary wheels arranged to face each other so as to roll on the side surfaces of the auxiliary rail.   The track transportation device according to claim 6, wherein the single rail and the auxiliary rail serve as a return line of electric power to the driving unit. The track has a plurality of struts that are driven into the ground at predetermined intervals and to which the single rail is attached,
The support column has a columnar main body portion and a sharpened portion detachably attached to one end side of the main body portion, and an end portion of the main body portion to which the sharpened portion is attached has a circumferential direction. The track transport device according to claim 4, wherein a plurality of tongue pieces are formed by a plurality of cuts formed toward the other end side at predetermined intervals. The track has a plurality of struts that are driven into the ground at predetermined intervals and to which the single rail is attached,
The column has a cylindrical main body, and a plurality of tongue pieces are formed at the end of the main body by a plurality of cuts formed at predetermined intervals in the circumferential direction toward the other end. On the outer periphery of the tongue piece portion, a cylindrical restraining member is fitted so that the tongue piece portion does not spread radially outwardly,
8. The device according to claim 4, wherein, when the support column is driven into the ground, the restraining member moves upward in the axial direction so as to be disengaged from the outer periphery of the tongue piece portion, and the tongue piece portion extends radially outward. Orbital transport device.