JP5360876B2 - Carriage support structure for ground mounted two-rail transportation vehicles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To absorb the unbalance of a load and the installation error of rails, in a double rail carrier installed over the ground. <P>SOLUTION: A carriage support structure is provided for the double rail carrier installed over the ground traveling on a double rail having a main rail and a sub rail which are installed over the ground. On a main rail side, main roller units arranged at two front/rear positions in a rail longitudinal direction support a carriage to be rotatable around a vertical shaft via left and right hinges rotatable in a rail width direction. On a sub rail side, sub roller units arranged at two front/rear positions of a lower sub frame extending in the rail longitudinal direction support the carriage to be rotatable around the vertical shaft, an upper sub frame continuous from the carriage is provided on the upper side of the lower sub frame, and front and rear hinges rotatable in the rail longitudinal direction support the longitudinal central portion of the upper sub frame on the lower sub frame. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a cart support structure for a ground-mounted two-rail transport vehicle that transports a relatively heavy, long material or the like.

  In large-scale construction such as pipelines and bridges installed in the wilderness and forests away from the base camp, rail vehicles are used to transport various materials and personnel. There are many types of rail transport vehicles that are installed on the ground with rails installed on the ground. According to this, it is not necessary to strictly level the ground, and the surrounding trees can be cut down with a narrow width. The advantage is that the cost is low. In general, the rails of a rail-type transport vehicle have many single rails, but when carrying a heavy weight or a long load, a two-rail consisting of a main rail and a sub rail is used.

In Patent Document 1 below, a two-rail carriage is proposed, but in the preceding example, both the main and sub rails are laid directly on the ground, so that some leveling is required. Therefore, laying costs are also required. In addition, when the rails are laid on the ground, the rails cannot be held from above and below by the wheels (rollers), so that special means for preventing the wheels from lifting are required. On the other hand, if the two-rail type is used, the height and width of the rails do not exactly match, and loads including personnel cannot be perfectly balanced. The stability of the car body will be lacking.
JP 2000-289605 A

  The present invention embodies a ground-mounted two-rail transport vehicle that is relatively low in laying cost and capable of transporting heavy loads with two rails. Even if the accuracy is slightly inferior or the load is unbalanced, the stability of the vehicle body can be maintained.

  Under the above-mentioned problems, the present invention is a carriage support structure for a ground-mounted two-rail transport vehicle that travels on a two-rail composed of a main rail and a sub-rail built on the ground according to claim 1, On the rail side, the carriage is supported by a main roller unit provided at two positions in the longitudinal direction of the rail so as to be rotatable about the vertical axis via left and right hinges that can be rotated in the rail width direction. The carriage is supported by two sub-roller units provided at the front and rear of the lower sub-frame extending in the longitudinal direction of the rail so as to be rotatable around the vertical axis, and an upper sub-frame is provided above the lower sub-frame, following the carriage. Bogie in a two-rail carriage on the ground, characterized in that the front and rear center of the subframe is supported by a lower subframe and a front and rear hinge that can rotate in the rail longitudinal direction. It is obtained by providing a lifting structure.

Further, the present invention provides the above-described cart support structure, wherein the main roller unit has four upper and lower, front and rear rollers for holding the main rail from above and below, and front and rear of the upper roller. Means provided so as to be rotatable around a horizontal axis provided at the center, the sub roller unit according to claim 3 having two rollers before and after rolling on the sub rail, and each Means provided so as to be rotatable around a horizontal axis provided at the front and rear center of the roller, Means according to claim 4, wherein each roller constituting the sub roller unit is provided wide relative to the sub rail, According to a fifth aspect of the present invention , there is provided means for setting the height of the main rail higher than the height of the sub rail.

  According to the first aspect of the present invention, the main roller unit having the roller that rolls on the main rail is provided with the left and right hinges that can rotate in the rail width direction with respect to the carriage, and also rolls on the sub rail. The sub-roller unit with rollers has a front and rear hinge that rotates in the longitudinal direction of the rail, so even if there are some differences in the height, width, and gradient of the main and sub rails, this is absorbed Keep the stability. In addition, the stability of the vehicle body is maintained even if the load is unbalanced.

  According to the second aspect, the followability to the main rail of the main roller unit is improved, and lifting can be prevented. According to the means of claim 3, the followability of the sub roller unit to the sub rail is enhanced, and according to the means of claim 4, the sub roller unit is detached from the sub rail even if there is an installation error in the distance between both rails. Can be prevented. According to the means of claim 5, it contributes to the stability of the vehicle body by causing the weight of the carriage to be borne more on the subrail side.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a trolley of a ground-mounted two-rail transport vehicle showing an example of the present invention, and FIG. 2 is a front view. The trolley 1 has a front frame 3 and a rear frame 4 before and after a cargo frame 2. (It is possible to pass a cross bar (not shown) to the front frame 3 and the rear frame 4 as appropriate to form a box). On the ground, a main rail 5 and a sub rail 6 each composed of a square pipe are installed at fixed heights by columns 7 and 8, respectively, and a main roller unit 9 provided on the back surface of the cargo bed frame 2 and a sub rail are provided. The roller unit 10 rolls on the main rail 5 and the sub rail 6 to run.

  In addition, although illustration is abbreviate | omitted, the trolley | bogie 1 is towed with a tow vehicle, and this tow vehicle is a single-rail type | formula which drive | works with the main rail 5 as a guide. For this reason, a rack 11 is attached to the main rail 5 on one side, and travels with the rack 11 meshing with a pinion constituting a drive mechanism driven by a prime mover mounted on the towing vehicle. In this respect, even if the rail has a certain degree of steep slope, it is possible to climb, and if the pinion is locked, it can also be a powerful braking mechanism.

  3 is a front sectional view of the main roller unit 9, and FIG. 4 is a partial sectional side view. The main roller unit 9 is mounted on the front and rear of the cargo bed frame 2, and is disposed on the side of the main rail 5. Four rollers, which are an upper front roller 13, an upper rear roller 14, and a lower front roller 15 and a lower rear roller 16, are attached to a hanging vertical plate 12 so as to hold the main rail 5 from above and below. Each of the rollers 13 to 16 in this case has a flange, which prevents the wheel from being removed.

  Then, the horizontal shaft 17 is projected on the main rail 5 from the front and rear center of the vertical plate 12 (the middle between the upper front roller 13 and the upper rear roller 14), and the upper front roller 13 and the upper rear roller 14 are attached to the horizontal shaft 17. A horizontal plate 18 having a space inside is mounted so as to be rotatable in the longitudinal direction of the rail (hereinafter referred to as the front-rear direction), and the vertical shaft 19 is erected from the horizontal shaft 17 to mount the vertical shaft 19 on the housing 20. And supported by a horizontal bearing 21 provided so as to be horizontally rotatable.

  Furthermore, the horizontal bearing 21 and the back surface of the loading frame 2 are connected via a left and right hinge 22 that can be rotated in the rail width direction (hereinafter, left and right direction). The left and right hinges 22 in this case are not limited to the configuration as long as they can be rotated in the left and right directions, but the one shown in the drawing is a rotation shaft on a front and rear horizontal sleeve 23 attached to the loading frame 2. 24 is rotatably inserted, and both ends of the rotating shaft 24 are supported by bearing plates 25 fixed to the housing 20 of the horizontal bearing 21. Thereby, the loading frame 2 on the main rail 5 side can be rotated in the horizontal direction and in the horizontal plane, and the main roller unit 9 can also be rotated back and forth around the horizontal shaft 17. In addition, a brake device may be provided also on the loading platform frame 2 side using the rack 11 described above.

  5 is a front sectional view of the sub-roller unit 10 and FIG. 6 is a partial sectional side view. The sub-roller unit 10 has a lower sub-frame 26 extending in the front-rear direction on the back surface of the cargo bed frame 2 and is A roller cover 27 is attached to the front and rear ends of the subframe 26, and a front roller 28 and a rear roller 29 that are mounted on the subrail 6 are rotatably attached to the roller cover 27. Then, a support cylinder 31 that can rotate in the front-rear direction is raised on the horizontal shaft 30 through the horizontal shaft 30 at the center of the roller cover 27 (intermediate between the front roller 28 and the rear roller 29). It is supported by.

  On the other hand, above the lower subframe 26, an upper subframe 32 extends in the front-rear direction on the back surface of the loading platform frame 2, and a center of the upper subframe 32 is a front / rear hinge 33 that can be rotated in the front-rear direction by the lower subframe 26. To support. In this case, the front / rear hinge 33 may have the same structure as the left / right hinge 22 including the sleeve 24 and the rotation shaft 24.

  Thereby, the loading platform frame 2 positioned above the sub rail 6 can be rotated in the horizontal direction and in the horizontal plane, and the sub roller unit 10 can also be rotated back and forth around the support shaft 30. When the main roller unit 9 and the sub roller unit 10 have the above configuration, the main rail 9 is structurally higher than the sub rail 10.

  In order to run the above transport vehicle, it is necessary to construct the main rail 5 and the sub rail 6. For this purpose, the heights, widths, and gradients of both rails 5 and 6 need to match those set. Therefore, careful erection work is performed using a gauge or the like, but perfect coincidence is virtually impossible. In addition, the length of the carriage 1 is 2 to 4 m, and even if both the rails 5 and 6 are installed as set, all the rollers of the main roller unit 9 and the sub roller unit 10 are supported without any load. It is very difficult. Therefore, it is necessary to absorb this error, but this can be absorbed by the main roller unit 9 and the sub roller unit 10 having the above-described configuration.

  Specifically, the two front and rear main roller units 9 are respectively supported by the left and right hinges 21 and can be rotated in the left-right direction, and the main roller unit 9 itself can be rotated in the front-rear direction. Further, the lower sub-frame 26 can be rotated in the front-rear direction by the front-rear hinge 33 with respect to the upper sub-frame 32, and the sub-roller unit 10 itself can be rotated in the front-rear direction with respect to the lower sub-frame 26. . In addition, the main roller unit 9 and the sub roller unit 10 can also be rotated in a horizontal plane with respect to the cargo bed frame 2 and the lower sub frame 26, respectively.

  By the way, since the main roller unit 9 holds the main rail 5 from above and below by the four rollers 13 to 16, it does not deviate from the main rail 5 even in a curve, but the two rollers constituting the sub roller unit 10 Since 28 and 29 are only rolling on the sub-rail 6, if there is a wide and narrow error between the two rails 5 and 6, the positions of the two rollers 28 and 29 may be shifted with respect to the sub-rail 6. . Even in such a case, the two rollers 28 and 29 are wider than the width of the subrail 6, so that no wheel is removed. In addition, it is suitable that the width of the two rollers 28 and 29 is at least twice the width of the subrail 6.

It is a side view of a two-rail transportation vehicle. It is a front view of a two-rail transportation vehicle. It is front sectional drawing of a main roller unit. It is a partial cross section side view of a main roller unit. It is front sectional drawing of a sub-roller unit. It is a partial cross section side view which shows the relationship between a sub-roller unit and an upper part and a lower sub-frame.

Explanation of symbols

1 Cart 2 Cargo Frame 3 Front Frame 4 Rear Frame 5 Main Rail 6 Sub Rail 7 Post 8 Post 9 Main Roller Unit 10 Sub Roller Unit 11 Rack 12 Vertical 13 Upper Front Roller 14 Upper Rear Roller 15 Lower Front Roller 16 Lower Rear Roller 17 Horizontal shaft 18 Horizontal 19 Vertical shaft 20 Housing 21 Horizontal bearing 22 Left and right hinge 23 Sleeve 24 Rotating shaft 25 Bearing plate 26 Lower subframe 27 Roller cover 28 Front roller 29 Rear roller 30 Horizontal shaft 31 Support cylinder 32 Upper subframe 33 Front and rear Hinge

Claims (5)

  It is a truck support structure for a ground-mounted two-rail carriage that travels on a two-rail consisting of a main rail and a sub-rail built on the ground. On the main rail side, the truck is provided at two locations in the longitudinal direction of the rail. The main roller unit is supported so as to be able to rotate around the vertical axis via left and right hinges that can rotate in the rail width direction, and on the sub rail side, the carriage is provided at two positions in the front and rear of the lower sub frame extending in the rail longitudinal direction. The sub-roller unit is supported so that it can rotate around the vertical axis, and the upper sub-frame that follows the carriage is provided above the lower sub-frame, and the front and rear centers of the upper sub-frame can be rotated in the rail longitudinal direction by the lower sub-frame. A cart support structure in a ground-mounted two-rail transport vehicle characterized by being supported by a simple front and rear hinge.   2. The main roller unit has four rollers, upper and lower, front and rear, which hold the main rail from above and below, and is provided so as to be rotatable around a horizontal axis provided at the front and rear center of the upper roller. Trolley support structure for ground-mounted two-rail transport vehicles.   The sub-roller unit has two front and rear rollers that roll on the sub-rail, and is provided so as to be rotatable about a horizontal axis provided at the front-rear center of each roller. Carriage support structure for ground-mounted two-rail transport vehicles. The cart support structure in a ground mounted two-rail transport vehicle according to any one of claims 1 to 3, wherein each roller constituting the sub roller unit is provided wider than the sub rail. The bogie support structure in a ground-mounted two-rail transport vehicle according to any one of claims 1 to 4, wherein a height of the main rail is set higher than a height of the sub rail.