JP3370150B2 - Cart - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The bogie according to the present invention is towed by a monorail for construction in which a main drive wheel to be propelled is a single-rail type, and loads and transports construction materials and human resources. With respect to the bogie, the vehicle direction of the bogie is freely changed along the torsion of the main rail (herein, the main rail is simply referred to as a rail), and the rail is distorted by the guide roller due to the torsion of the rail. It is an object of the present invention to prevent the traction force from being reduced due to an increase in resistance generated at the guide roller. [0002] A truck used for transporting materials by pulling a monorail on an attached rail has upper and lower guide rollers sandwiching the main rail inside, and auxiliary rollers on both sides or one side of the guide roller are mainly used. It rides on an auxiliary rail attached along the rail, thereby keeping the truck stable. The torsion of the rail causes a greater increase in the resistance of the bogie guide rollers.To prevent this increase in resistance, the torsion of the rail is supported between the mounting frame of the guide rollers running on the rails and the lower part of the bogie. As a result, it is necessary to provide a trolley block as a device of the swivel unit that allows the direction of the bogie to freely change. When the rail is laid on the terrain that rises or descends while bending, a device that smoothly rotates the guide roller according to the twist of the rail is provided between the guide roller mounting frame of the bogie and the bogie main body. . Such a device is called a trolley block, and the function of the trolley block is to make the direction of the bogie up and down and right and left freely.
It is intended to prevent the rail from being damaged by the guide roller and to prevent a reduction in traction force. [0003] In the prior art, a truck towed by a monorail has a complicated structure of a device of a turning section for changing the direction of the truck in response to the torsion of the rail and preventing a decrease in the tractive force.
There was a drawback that the position of the truck with the center of gravity was high. That is,
The rotating plate 1 is attached to the bolts
8 is provided, the shaft 20 is provided on the left and right bearings 19 provided thereon, and the upper shaft 24 which is welded perpendicularly to the shaft is provided on the front and rear upper bearings 23 provided on the mounting plate 22 of the upper bearing. The flat plate 25 provided on the mounting plate 22 is mounted on the bogie main body. In the structure of the revolving section device, the revolving section becomes large because the two shafts provided on the front and rear or both left and right bearings are orthogonal, and the position of the center of gravity of the bogie is high due to the thickness of the revolving section. And the stability of the truck becomes poor. For this reason, it is useless if the stopper for limiting the inclination angle of the bogie main body is small, and it has been difficult to attach the enlarged stopper. [0004] In the prior art, the structure of the swivel portion using the double bearings increases the size of the swivel portion, which inevitably increases the center of gravity of the bogie. Therefore, the present invention is an improvement on the conventional disadvantage. The trolley block, which is a device for the turning part of the bogie, uses a self-aligning bearing to enable the direction of the bogie to be freely changed according to the torsion of the rail. It is intended to propose a new bogie with a lower center of gravity in the trolley block that is used. [0005] A self-aligning bearing is a bearing of a device that can freely change the direction of a bearing surface according to the inclination of a shaft. According to the present invention, a cart is provided in which a roller floor is rotatably provided above a king pin provided above a guide roller mounting frame, and which serves as a stopper against the roller floor provided above the king pin in response to the rotation of the king pin. A configuration of a trolley block provided on a mounting frame provided below the main body, and provided with a self-aligning bearing provided with the kingpin as a center shaft on the inner ring at the lower portion of a bogie main body provided on the mounting frame. Is what you do. In the present invention, since the guide roller is inclined by the inclination of the plane of the twisted rail, the guide roller mounting frame provided with the guide roller is inclined and the guide roller is mounted. Taking advantage of the fact that the kingpin provided upright on the top of the frame is inclined, the inclination of the kingpin can be freely changed by the self-aligning bearing. The bearing having the king pin provided on the inner ring is provided on a mounting frame provided on the bogie main body so that the direction of the bogie can be freely changed. That is, a kingpin is provided upright on the upper part of the guide roller mounting frame,
The upper outer diameter of this kingpin is smaller than the lower outer diameter, a step is provided between the lower outer diameter and the upper outer diameter, a roller floor is provided on the step, and a lid is placed on the roller floor. Attach the roller floor to the top of the kingpin with the mounting bolts. The king pin is provided at the center of the inner ring, an outer ring is provided around the inner ring with a steel ball interposed, and the king pin of the inner ring is provided so as to be rotatable in the outer ring. A convex curved surface is provided on the outer periphery of the outer ring, and the convex curved surface on the outer periphery is inscribed in a concave curved surface provided inside the pillow block main body, and the outer ring is rotatable within the concave curved surface of the pillow block main body. It is provided as follows. The pillow block body is provided in a mounting frame having a clearance hole, a stopper is provided around the clearance hole of the mounting frame, and a slight gap between the tip of the stopper and the periphery of the roller floor is adjusted. The position adjustment bolt to be obtained is provided on the mounting frame.
The trolley block has a mounting frame for the trolley block provided on the trolley body. The direction of the carriage according to the present invention is as follows. When the guide roller is inclined along the rail, the king pin provided with the guide roller mounting frame is inclined, and the roller floor provided above the king pin serves as the stopper. The kingpin can rotate easily inside the clearance hole by contact. When the bogie is turning to the left or right, the inner ring provided with the kingpin rotates, so the guide rollers will adjust to the rails and turn, and if the bogie tilts to the front, back, left or right Since the direction of the bogie is free due to the deviation of the convex curved surface of the outer ring along the concave curved surface of the pillow block main body, the direction of the bogie can be freely changed with respect to the torsion of the rail. By loosening the position adjustment bolt provided on the side of the mounting frame and changing the mounting position of the stopper provided on the mounting frame, the freedom of the kingpin there is limited in the clear hole inside the stopper, The maximum inclination angle of the guide roller can be easily changed. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings illustrate an embodiment of a truck according to the present invention. The present invention will be described in detail with reference to the drawings. 1 is a longitudinal sectional view taken along the line AA of FIG. 1, illustrating the structure of a trolley block, FIG. 2 is a perspective view illustrating the structure of a conventional swivel unit, and FIG. 3 is a plan view of a truck connected to a monorail. 4 is a side view of the bogie, FIG. 5 is a plan view of a rail provided between the two points AB, and shows a state of a rail plane which rises Hm while bending from point A to point B, and FIG. , AB is a side view of a rail provided between the two points, and shows a state of a rail plane that rises by Hm while bending from point A to point B in the side view. Each part of the bogie will be described based on the reference numerals attached to the drawings. 1 is a rail for guiding a truck pulled by a monorail, 2 is a guide roller disposed above and below the rail, 3 is a guide roller mounting frame, 4 is
A guide roller shaft provided on the guide roller mounting frame, 5 is a king pin provided on the upper portion of the guide roller mounting frame, 6 is a steel ball provided between the inner ring and the outer ring, 7
Is an outer ring having a convex curved surface on the periphery, 8 is a pillow block body having a concave curved surface on the inner periphery, 9 is a clearance hole provided in the mounting frame 10, 10 is a mounting frame for mounting the pillow block main body, 11 is Stopper mounting bolt, 12
Is a stopper, 13 is a position adjusting bolt of the stopper, 14 is a roller floor attached to the upper part of the kingpin, 15 is a lid of the roller floor, 16 is a mounting bolt of the lid, 17 is a bogie body, Reference numeral 18 denotes a rotating plate of a revolving portion in the conventional technique, 19 denotes a bearing, 20 denotes a shaft provided on both bearings, 22 denotes a mounting plate of an upper bearing,
23 is an upper bearing, 24 is an upper shaft provided by welding on the shaft 20, 25 is an intermediate flat plate provided between the mounting plate of the upper bearing and the bogie main body, and 26 is a bogie. Monorail to pull, 27 is a trolley block, 28
Denotes a trolley block mounting frame, and 29 denotes an inner ring fitted around a kingpin. The rail 1 for guiding the carriage 17 towed by the monorail 26 is provided so as to pass through both points AB. If the rail becomes higher by Hm from the point A to the point B, the flat surface 1a of the rail is inclined, so that the bogie is inclined. Therefore, the rail is twisted and attached. The guide rollers 3 arranged above and below the rail 1 are affected by the torsion of the rail. Assuming that the direction of the bogie does not change freely, the guide rollers 2 provided before and after the bogie 17 are fixed in their respective directions against the torsion of the rails. The traction is weaker. The guide roller 2 is provided on a guide roller shaft 4 provided on the guide roller mounting frame 3. A king pin 5 is provided above the guide roller mounting frame 3, a step is provided around the king pin 5, an inner ring 29 is provided on the step, and a king pin 5 protruding above the inner ring 29 is provided. Provide a step around the top,
A roller floor 14 mounted on the step is rotatably provided, and a cover 15 is placed on the roller floor 14 so that the roller floor 14 does not come off over the kingpin. Attach with 16. The steel ball 6 is provided between the inner ring 29 and the outer ring 7, and the inner ring 29 is freely rotatable to enable the rotation of the king pin 5 provided at the center of the inner ring. The outer ring 7 has a convex curved surface around it. The outer ring is provided so as to rotate in a concave curved surface which is provided on the inner periphery of the pillow block body 8. The convex curved surface of the outer ring 7 and the concave curved surface of the pillow block main body 8 which is provided so as to be freely rotatable can simultaneously absorb inclination in the left, right, front and rear directions. Pillow block body 8
The mounting frame 10 is provided with a clearance hole 9 at the center of the mounting frame 10. The size of the clearance hole is large enough to allow the movement of the king pin 5 inserted in the hole to have a sufficient space. The mounting frame 10 for mounting the pillow block body includes a king pin 5
A plurality of stoppers 12 are provided with mounting bolts 11 of stoppers for limiting a kingpin from the surrounding area or fixing a kingpin from the surrounding area, and position adjusting bolts 13 of each stopper are provided on a side surface of the mounting frame 10. When the truck 17 is inclined, the tip of the stopper 12 hits around the rotatable roller floor 14 attached to the upper part of the king pin 5, and when the truck 17 is abnormally inclined, the king pin 5 is inclined with the inclination. The periphery of the stopper 14 is pushed by the tip of the stopper 12, and the stopper 12 prevents the truck from inclining to a certain angle or more. If the mounting bolts 11 are loosened and the position adjusting bolts 13 of the stoppers are tightened to set the respective stoppers 12 at the fixed positions of the king pins 5, the respective stoppers press the king pins 5 in the clearance holes from the periphery thereof to be fixed. Can be fixed. According to the truck of the present invention, the maximum inclination angle of the guide roller in the truck in which the driving wheels serving as the propulsion force are pulled by a single-rail monorail is adjusted according to the twist of the attached rail. Since the adjustment is possible, useless movement of the guide roller is restricted after the adjustment, and the movement of the trolley block is smooth. Between the top of the guide roller mounting frame and the bogie main body, there is room for the thickness of the pillow block main body in which the inner ring is provided with a king pin that has a lower end provided above the mounting frame and the guide roller mounting frame. Just good. Therefore, the trolley block provided between the guide roller and the bogie main body so that the direction of the bogie can be freely changed leads to downsizing of the bogie main body.
The bogie is necessary for transporting a long object, a person, or the like on a mountain such as a construction site by pulling with a traction force of a monorail. Transporting the monorail, which pulls the trolley while minimizing the resistance of the trolley, without losing the traction, maximizes the traction with a small amount of fuel and produces the economic effect of transporting the trolley over long distances. In addition, it produces a clean effect with good fuel consumption efficiency and exerts social impact. According to the present invention, such an excellent economic and social effect can be expected because the technical effect reduces the resistance of the bogie to be pulled by the single-rail monorail.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view taken along the line AA of FIG. 1 illustrating the structure of a trolley block. FIG. 2 is a perspective view illustrating the structure of a conventional swivel unit. FIG. 3 is a truck connected to a monorail. FIG. 4 is a side view of a bogie. FIG. 5 is a plan view of a rail provided between points A and B. FIG. 6 is a side view of a rail provided between points A and B. Explanation of reference numerals] . . Rail2. . . Guide roller 3. . . Guide roller mounting frame 4. . . Guide roller shaft 5. . . Kingpin 6. . . Steel ball7. . . Outer ring 8. . . Pillow block body 9. . . Clear hole 10. . . Mounting frame 11. . . Mounting bolts 12. . . Stopper 13. . . Position adjustment bolt 14. . . Roller floor 15. . . Lid 16. . . Mounting bolt 17. . . Cart body 18. . . Rotating plate 19. . . Bearing 20. . . Axis 22. . . Mounting plate for upper bearing 23. . . Upper bearing 24. . . Upper shaft 25. . . Middle plate 26. . . Monorail 27. . . Trolley block 28. . . Trolley block mounting frame 29. . . Inner ring

Claims (1)

(57) [Claims 1] A kingpin 5 is provided upright with respect to the upper part of the guide roller mounting frame 3, and the outer diameter of the upper part of the kingpin is smaller than the outer diameter of the lower part. A step is provided in the middle of the outer diameter of the upper part, a roller floor 14 is provided on this step, a lid 15 is put on the step, the roller floor 14 is mounted on the king pin 5 with mounting bolts 16, and the king pin 5 is It is provided at the center of the inner ring 29, the outer ring 7 is rotatably provided around the inner ring with the steel ball 6 interposed therebetween, and a convex curved surface is provided on the outer periphery of the outer ring, and the convex curved surface is provided on the pillow block body 8. The pillow block body is provided freely in contact with the concave curved surface, and the pillow block body is provided with the
And a stopper 12 is provided around the clearance hole 9 of the mounting frame 10, and a position adjusting bolt 13 capable of adjusting a slight gap between the tip of the stopper and the periphery of the roller floor 14 is mounted. A trolley, wherein the trolley block provided on the frame (10) is provided on the trolley body (17).