JP-7855403-B2 - Conveying device and conveying method

Inventors

• 洲本 康樹
• 岩本 信人

Assignees

• 中国電力株式会社
• 住友重機械搬送システム株式会社

Dates

Publication Date

20260508

Application Date

20220520

Claims (5)

1. A conveying device that holds an object to be conveyed between a lower conveying belt and an upper conveying belt and conveys the object upward, The lower conveyor belt and the upper conveyor belt are facing each other, and the system includes a preparation region in which the curvature of the cross-section in the width direction of each changes, and an upward region in which the lower conveyor belt and the upper conveyor belt face each other to grip the object to be conveyed and raise the object to be conveyed. In the preparation area, starting from the upstream side in the conveying direction of the conveying device, A first roller supports the lower ear portion of the lower conveyor belt so that it is above the central portion of the lower conveyor belt, A second roller supports the upper ear portion of the upper conveyor belt so that it is located below the central portion of the upper conveyor belt, A third roller supports the lower edge portion of the lower conveyor belt so that it is above the central portion of the lower conveyor belt, A conveying device equipped with the following features.
2. The third roller has a rotating shaft extending substantially horizontally, with a diameter that is largest in the center and decreases towards both ends, and has two barrel-shaped rollers that support the lower ear portion. The conveying device according to claim 1.
3. The first roller is, A cylindrical horizontal roller having a rotating shaft extending in a nearly horizontal direction, The horizontal roller has two cylindrical trough floras on both sides, each having a rotation axis inclined with respect to the rotation axis and supporting the lower ear portion. The second roller is A cylindrical horizontal roller having a rotating shaft extending in a nearly horizontal direction, It has two cylindrical trough floras that have rotation axes inclined with respect to the rotation axis on both sides of a cylindrical horizontal roller and support the upper lug portion, The conveying device according to claim 1 or 2.
4. In the first roller, the inclination angle of the rotation axis of the traflora with respect to the rotation axis of the horizontal roller is approximately 18 degrees. The conveying device according to claim 3.
5. A conveying method in which an object to be conveyed is held between a lower conveying belt and an upper conveying belt, and the object to be conveyed is conveyed upward, With the lower conveyor belt and the upper conveyor belt facing each other, in the preparation area for changing the curvature state in the widthwise cross-section of each, The lower ear portion of the lower conveyor belt is supported so that it is above the central portion of the lower conveyor belt. The upper ear portion of the upper conveyor belt is supported so that it is below the central portion of the upper conveyor belt. By supporting the lower ear portion of the lower conveyor belt so that it is above the central portion of the lower conveyor belt, the curvature state in each widthwise cross-section is changed. In the lifting region, with the lower conveyor belt and the upper conveyor belt facing each other, the conveyed object is gripped and lifted. Transportation method.

Description

This invention relates to a conveying device and a conveying method. Traditionally, when transporting coal and other materials from low places to high places, such as from silos to bunkers, using conveying equipment such as belt conveyors, the upward inclination angle of the belt conveyor is limited by the angle of repose of the material being transported. Therefore, the greater the difference in elevation during transport, the longer the transport distance required to lift the material, resulting in the problem of a larger installation area for the conveying equipment. To solve this problem, in recent years, conveying devices have been used that sandwich the object to be conveyed between a lower conveyor belt and an upper conveyor belt and transport it upward (see Patent Document 1). Patent Application No. 2015-238145 This is a diagram illustrating the overall configuration of the transport device according to the embodiment.This is a view of the horizontal rollers positioned in the horizontal area, seen from the width direction.This is a view of the fourth roller from the width direction.This is a view of the first roller from the width direction.This is a view of the second roller from the width direction.This is a view of the third roller from the width direction.This is a view of the roller for the lifting area from the width direction.This diagram schematically shows the change in the curvature of the upper and lower conveyor belts at positions a, b, c, d, and e. The following describes embodiments of the present invention. Figure 1 is a diagram illustrating the overall configuration of the conveying device 1 of the embodiment. The conveying device 1 comprises an upper belt conveyor 10 and a lower belt conveyor 20 installed below the upper belt conveyor 10. The conveying device 1 transports an object to be conveyed 2 (not shown in Figure 1) upwards by sandwiching it between the upper belt conveyor 10 and the lower belt conveyor 20. (Upper belt conveyor 10) The upper belt conveyor 10 comprises an upper head pulley 11 positioned above, an upper tail pulley 12 positioned below, and an endless upper conveying belt 13 stretched between the upper head pulley 11 and the upper tail pulley 12. The upper conveyor belt 13 has an upper conveying section 13C that contributes to the conveying of the object 2 along the conveying direction D from the upper tail pulley 12 to the upper head pulley 11, and an upper return section 13R above the upper conveying section 13C, returning from the upper head pulley 11 to the upper tail pulley 12 in the opposite direction to the upper conveying section 13C. An upper drive pulley 14 is provided in the middle of the upper return section 13R to provide driving force to the upper conveyor belt 13. (Lower belt conveyor 20) The lower belt conveyor 20 is positioned below the upper belt conveyor 10, and its upstream side extends further than the upper belt conveyor 10. The lower belt conveyor 20 comprises a lower head pulley 21 positioned above, a lower tail pulley 22 positioned below, and an endless lower conveying belt 23 stretched between the lower head pulley 21 and the lower tail pulley 22. The lower conveyor belt 23 has a lower conveying section 23C that contributes to the conveying of the object 2 along the conveying direction D from the lower tail pulley 22 to the lower head pulley 21, and a lower return section 23R that returns from the lower head pulley 21 to the lower tail pulley 22 in the opposite direction to the lower conveying section 23C, below the lower conveying section 23C. A lower drive pulley 24 is provided in the middle of the lower return section 23R to provide driving force to the lower conveyor belt 23. The conveying device 1 has a horizontal region H in which the object to be conveyed 2 is placed on the lower conveying belt 23 and conveyed substantially horizontally without being covered by the upper conveying belt 13; a preparation region P in which the lower conveying belt 23 and the upper conveying belt 13 face each other but the object to be conveyed 2 has not yet begun to rise; and an upward region J in which the lower conveying belt 23 and the upper conveying belt 13 face each other and grasp the object to be conveyed 2 as it rises. The lower conveyor belt 23 is stretched longitudinally between the lower head pulley 21 and the lower tail pulley 22, thereby applying tension. The upper conveyor belt 13 is stretched longitudinally between the upper head pulley 11 and the upper tail pulley 12, thereby applying tension. In the upward region J, this tension causes the lower conveyor belt 23 and the upper conveyor belt 13 to adhere closely to each other. The lower conveyor belt 23 and the upper conveyor belt 13 then sandwich and enclose the object to be conveyed 2, thereby transporting the object upward without spillage. (Horizontal area H) The horizontal region H is the region between the lower tail pulley 22 of the lower conveyor belt 23 and the upper tail pu