JP2017007586A - Carriage for monorail and railway-conveyance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-traveling carriage straddling a columnar monorail with a further simplified structure and further reduced weight as well as with an ability to securely prevent a slip.SOLUTION: A self-traveling carriage for monorail comprises: a body 1; driving wheels 12 which are supported by the body 1 and which pressure-contact an outer peripheral surface of a monorail 21; compression coil springs 14 energizing the driving wheels 12 toward the monorail 21; and a motor M1 driving the driving wheel 12. An outer peripheral surface of the driving wheel 12 includes: a concave surface 121 having a curvature substantially the same as that of the outer peripheral surface of the monorail 21; and gear teeth 122 formed on both axial sides of an outer peripheral edge. The gear teeth 122 of adjacent driving wheels 12 are meshed with each other during pressure-contact with the monorail 21.SELECTED DRAWING: Figure 1

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in protection of the natural environment, it is also desired that the transport device is a device that can be withdrawn without destroying the forest.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

  Therefore, the applicant of the present invention has proposed, prior to the filing of the present application, a cart and a track transporting device that have a simpler structure than that of the prior art and that are excellent in climbing performance and that can be easily installed in rough forests or the like (Patent Document 4).

JP-A-61-85263 Japanese Patent Laid-Open No. 9-2255 JP-A-10-16771 JP 2014-131905 A

  In order to install an orbital transportation device on rough terrain and steep forests, it is desired to further reduce the weight of the carriage. In addition, when carrying out timber or the like from a forest, it is also desired to increase the gripping force between the wheels of the carriage and the single rail to reliably prevent the carriage from slipping.

  The present invention has been made to meet such demands, and its object is to further simplify the structure and reduce the weight of the carriage, and to prevent slipping with certainty, and a track transportation device using the same. Is to provide.

  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. Two or more drive wheels that are pressed against the outer periphery of the single rail, biasing means for biasing the two or more drive wheels in the direction of the single rail, and the two or more drive wheels. An outer peripheral surface of the two or more driving wheels is a concave surface having substantially the same curvature as the outer periphery of the single rail, and gear teeth are formed at both ends in the axial direction of the outer peripheral edge. The gear teeth of the driving wheels to be fitted are engaged with each other in a pressure contact state with the single rail.

  The said structure WHEREIN: The structure which the said 2 or more drive wheel press-contacts to the said single rail at equal intervals in the circumferential direction is preferable.

  Moreover, in the said structure, the structure which 50%-90% of the outer periphery of the said single rail is covered with the said two or more drive wheels in the press-contact state of the said two or more drive wheels and the said single rail.

  Further, in the above configuration, the drive wheel includes five drive wheels, one of which is in pressure contact with the single rail on a vertical line passing through the central axis of the single rail, and the remaining four drive wheels are the center of the single rail. A configuration in which the single rail is press-contacted symmetrically with respect to the axis is preferable.

  Moreover, in the said structure, it is preferable to set it as the structure which provides the drive part which consists of the said 2 or more drive wheel before and behind the advancing direction of the said trolley | bogie.

  Moreover, according to the present invention, it is provided with a track having a columnar single rail, and a cart that is self-propelled across the single rail, and the single rail cart according to any one of the above is used as the cart. An orbital transport device is provided.

  In the cart of the present invention, gear teeth are formed on the outer peripheral edge of the drive wheel, and when the drive wheel and the single rail are in pressure contact with each other, the gear teeth of the adjacent drive wheels mesh and transmit the driving force. The conventional driving force transmission mechanism used is not necessary, and the weight can be greatly reduced. At the same time, since the contact area between the drive wheel and the single rail becomes long, the grip force is increased. As a result, slipping of the carriage is surely prevented, and even heavy objects such as felled timber and work equipment and materials can be easily transported, and the climbing ability is excellent.

  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.

It is a vertical sectional view of the direction perpendicular to the direction of travel of the trolley and track transportation device concerning the present invention. It is a vertical sectional view parallel to the traveling direction of the cart and the track transportation device according to the present invention. It is a vertical cross-sectional perspective view of the drive wheel 12a used by this invention. 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 perpendicular to the traveling direction of the single rail carriage and the track transport device according to the present invention, and FIG. 2 is a vertical sectional view parallel to the traveling direction. The track transport device of FIG. 1 includes a track 2 having a columnar single rail 21 and a carriage 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 carriage 1 includes a housing 11 and five drive wheels 12 a, 12 b, 12 c, 12 d, which are supported by the housing 11 and are in pressure contact with the outer periphery of the single rail 21 at equal intervals in the circumferential direction. 12e (hereinafter may be collectively referred to as "drive wheel 12"). A compression coil spring (biasing means) 14 is interposed between a bearing (not shown) that rotatably supports the drive wheel 12 and the housing 11. A motor (drive source) M1 for rotating the drive wheel 12 is provided in the vicinity of the drive wheel 12a.

  In addition, a pair of sliding members 17a and 17b are provided at the center lower portion of the casing 1 in the width direction (left and right direction on the paper surface). 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 1 is suppressed.

  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.

  The driving wheel 12a is pressed against the single rail 21 by the weight of the carriage 1 on a vertical line passing through the central axis of the single rail 21, and the remaining four driving wheels 12b, 12c, 12d, and 12e are pointed around the central axis of the single rail 21. It arrange | positions symmetrically and is press-contacted to the single track 21 with the urging | biasing force of the compression coil spring 14, respectively. As a load by the compression coil spring 14, about several thousand N is preferable normally, More preferably, it is 4000 N or more.

  As shown in FIG. 3, the outer peripheral surface of the drive wheel 12 is a concave surface 121 having substantially the same curvature as the outer periphery of the single rail 21, and gear teeth 122 are formed at both axial ends of the outer peripheral edge. The gear teeth 122 of the adjacent drive wheels mesh with each other in a state of being pressed against the single rail 21. Further, in a state where the five drive wheels 12 a, 12 b, 12 c, 12 d, and 12 e are in pressure contact with the single rail 21, about 83% of the outer periphery of the single rail 21 is covered with the five drive wheels 12. As a result, the grip force of the single rail 21 by the drive wheel 12 is increased, and the carriage 1 is reliably prevented from slipping and can be easily transported even with heavy objects such as felled wood and work equipment / materials. As the contact area between the drive wheel 12 and the single rail 21 increases, the grip force of the drive wheel improves, but it is usually preferable to cover 50% to 90% of the outer periphery of the single rail 21 with the drive wheel 12.

  In FIG. 1, the driving force of the motor M1 is transmitted to the driving gear 16 (shown in FIG. 2) via the gear box 51, and the transmission gear 15 that meshes with the driving gear 16 rotates as the driving gear 16 rotates. Then, the drive wheel 12a attached to the same rotation shaft as the transmission gear 15 rotates. The drive wheel 12a and the drive wheels 12b and 12e on both sides thereof are meshed with gear teeth 122 formed on the outer peripheral edge of the drive wheel. Thereby, when the drive wheel 12a rotates, the drive wheels 12b and 12e also rotate. Similarly, the drive wheels 12c and 12d and the adjacent drive wheels 12b and 12e are meshed with the gear teeth 121 formed on the outer peripheral edge of the drive wheel, so when the drive wheels 12b and 12e rotate. The drive wheels 12c and 12d also rotate. In this way, the five drive wheels 12 are all driven. The other drive unit D2 has the same configuration.

  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.

  The carriage 1 can be attached to and detached from the track because the installation and removal work is complicated from the existing track installed in the forest or the like. Therefore, a moving track having a single rail slightly longer than the length of the carriage 1 in the traveling direction is prepared in advance and moved. The carriage 1 is attached to the track, the movement track is connected to the end of the existing track constructed in the forest, and the carriage 1 is moved from the movement track to the existing track, thereby attaching the carriage to the existing track. When removing the carriage from the existing track, the procedure is the reverse of that described above.

  Electric power is supplied to the motors M1 and M2 from a battery (not shown) mounted on the carriage 1. If an inverter is interposed between the battery and the motors M1 and M2, the traveling speed of the carriage 1 can be adjusted.

  In the embodiment described above, the motors M1 and M2 are provided in the front drive unit D1 and the rear drive unit D2, respectively, and the drive wheels 12 are rotated. However, the front and rear drive units D1 and D2 are rotated by one motor. All drive wheels may be rotated.

  Regarding the construction of the track, the construction method exemplified in Japanese Patent Application Laid-Open No. 2014-131905 filed by the present applicant can also be applied in the present invention.

  FIG. 4 shows a schematic diagram of a photograph when the orbital transport device of the present invention is temporarily installed in a forest. The track 2 is formed by connecting a frame body F, which is a unit of a predetermined length, to a column P standing on the ground at a predetermined interval. In the frame F, a single rail 21 having a predetermined length and a horizontal pipe 23 are positioned parallel to each other with a predetermined interval in the vertical direction, and a plurality of lattices 24 are “c” between the single rail 21 and the horizontal pipe 23. It is repeatedly provided in a letter shape.

  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.

  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. .

  In the cart of the present invention, gear teeth are formed on the outer peripheral edge of the drive wheel, and when the drive wheel and the single rail are in pressure contact with each other, the gear teeth of the adjacent drive wheels mesh and transmit the driving force. The conventional driving force transmission mechanism that has been used is not necessary, and it is useful in that the weight can be significantly reduced. At the same time, the contact area between the drive wheel and the single rail increases, which increases the gripping force and reliably prevents the carriage from slipping. It can be easily transported even with heavy materials such as felled wood and work equipment / materials. is there.

1 dolly 2 track D1, D2 drive unit M1, M2 motor (drive source)
P support 11 casing 12a, 12b, 12c, 12d, 12e driving wheel 14 compression coil spring (biasing means)
17a, 17b Sliding member 21 Single rail 121 Concave surface 122 Gear teeth

Claims (6)

It is a cart that is self-propelled across a cylindrical single rail,
A housing,
Two or more drive wheels supported by the housing and pressed against the outer periphery of the single rail;
A biasing means for biasing the two or more drive wheels in the direction of the single rail;
A drive source for driving the two or more drive wheels,
The outer peripheral surfaces of the two or more drive wheels are concave surfaces having substantially the same curvature as the outer periphery of the single rail, and gear teeth are formed at both axial ends of the outer peripheral edge,
A single rail carriage characterized in that gear teeth of adjacent drive wheels mesh with each other in a pressure contact state with the single rail.   The single rail carriage according to claim 1, wherein the two or more drive wheels are in pressure contact with the single rail at equal intervals in the circumferential direction.   The single-rail carriage according to claim 1 or 2, wherein 50% to 90% of the outer circumference of the single rail is covered by the two or more drive wheels in the pressure contact state between the two or more drive wheels and the single rail.   Five drive wheels are provided, and one of the drive wheels is pressed against the single rail on a vertical line passing through the central axis of the single rail, and the remaining four drive wheels are pointed around the central axis of the single rail. The single rail carriage according to any one of claims 1 to 3, wherein the single rail is in pressure contact with the single rail symmetrically.   The single rail bogie according to any one of claims 1 to 4, wherein a drive unit including the two or more drive wheels is provided before and after the carriage in the traveling direction. 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 5 as the bogie.