JPS60148806A - Conveyor - Google Patents

Abstract

PURPOSE:To enhance the efficiency of cargo-handling and as well to facilitate the maintenance of a conveyor having a pair of conveyors which are made in press-contact with each other to form an ascending feed path, by urging belt carrier rollers which are foldable in the belt widthwise direction, in the conveying direction with the use of a weight and levers. CONSTITUTION:Supports levers 19, 19 are urged in the direction in which they approach together, by means of a weight, a suspension rope 23 and pulleys 22, 22, and therefore, upper and lower carrier rollers 10, 10 are made in press-contact with the conveying surfaces 4, 4 of conveyor belts 1, 2. When a material (m) to be conveyed is introduced into an ascending feed path 3 formed between the conveyor belts 1, 2, the reaction force with respect to the holding force for the material (m) acts upon the carrier rollers 10 and is then transmitted to the suspension rope 23 through a joint member 14, a support rod 17 and a support levers 19 so that the carrier rollers 10 are rotated about brackets 13 until they take a balance with the weight. Accordingly, the feed path 3 is enlarged. With this arrangement the material may be conveyed with a force corresponding to the material, thereby the material may be conveyed stably.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a competition 17, and particularly to a conveyor in which conveyor belts 1- are stretched in parallel to each other in order to form an ascending transport path for objects to be transported 11. In this case, supporting rollers are swingably provided so that the cross-sectional area of the ascending transfer path can be changed according to the amount of conveyed objects, and these supporting rollers are pressed onto the conveying belt by a single biasing member. Regarding something that is energized.

[Technical Background of the Invention and Problems 1] As a conveyor for conveying objects along a steeply sloped surface, a conveyor in which two sets of belt conveyors are arranged side by side with their respective conveying surfaces facing each other is known. There is.

However, in the above-mentioned conventional conveyor, since the support roller that supports the back side of the conveyor belt is fixed on the conveyor surface, the size of the upward transport path (trough) of the conveyed object divided by the conveyor belt is limited. The cross-sectional area was constant. For this reason, it is not possible to transport a large number of objects, and there is also a drawback that large-diameter objects may get caught and become clogged.

[Objective of the Invention 1 The present invention has been made in order to eliminate the drawbacks of the above-mentioned prior art, and its purpose is to automatically change the cross-sectional area of the trough according to the amount of conveyed objects, To provide a conveyor that can improve cargo handling efficiency as much as possible, can reliably bias all supporting rollers with one biasing member, and is easy to manufacture and maintain.

[Summary of the Invention] In order to achieve the above-mentioned object, the present invention comprises conveying belts that are passed in parallel with their conveying surfaces pressed against each other in order to form an upward conveyance path for the conveyed object. Support rollers are connected to the surface at suitable intervals along the conveyance direction and bendably in the width direction of the conveyor belt, and the support rollers are connected to the connecting portion of these support rollers so as to swing with respect to the conveyance surface. The present invention is characterized in that support levers are provided for freely supporting the support levers, and a biasing member is provided between these support levers for simultaneously biasing the support roller in the direction of pressing the support roller against the conveyance surface.

[Embodiments of the Invention] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numerals 1 and 2 denote conveyor belts that are stretched parallel to each other with their conveyor surfaces 4 pressed against each other to form an upward conveyance path 3 for the conveyed object. A hook is provided between a driving roller 5 and a driven roller 6 arranged at both ends. Reference numeral 7 denotes tension rollers that support the return sides of the conveyor belts 1 and 2, respectively. Both ends in the longitudinal direction of the ascending transfer path 3 are open, one end (lower end) thereof is formed as a carry-in port 8 for carrying in objects to be transported such as earth and sand, and the other end is formed as a carry-in port 9.

In addition, in order to support the conveying surfaces 4, 4 of the conveying belt 1.2 forming the ascending conveyance path 3 while urging them in the direction of pressure contact with each other from the respective back sides, the rear side of the conveying surfaces 2 is Support rollers 10 are arranged at appropriate intervals in the conveyance direction (in the illustrated example, in a lateral staggered manner). Each bearing roller 10 has a second
As shown in FIGS. 3 and 3, the hooks are connected to each other in a flexible manner in the width direction of the conveyor belt, and are specifically constructed as follows. That is, on each rear side of the conveying surface 4, a groove-shaped frame 11 whose conveying surface side is open is connected to the upward conveying path 3.
The arrangement is fixed along the opposite inner side Lj1a,
11b, one end of a roller shaft 12 of a pair of supporting rollers 10 is rotatably supported via a bracket 13. In this case, each bearing roller 10 is attached to a bracket 1
3 as a fulcrum and are set to swing in a direction perpendicular to the conveying surface 4. The other ends of the roller shafts 12 are flexibly connected to each other by a joint member 14 that allows relative displacement due to rocking. This joint member 14 has, for example, long holes 1 formed in both side walls of a groove-shaped member along its longitudinal direction.
These elongated holes 15 have protruding shafts 16 formed at the other end of the roller shaft 12 so as to be perpendicular thereto.
are engaged with each other. Therefore, when a force is applied to the support roller 10 from the conveying surface 4 side, the support roller 10 is bent at the joint member 14 in order to absorb the force. This joint member 14 is integrally formed with a support rod 17 that loosely passes through the frame 11 on the free end side, and a bracket 18 is attached to the free end of the support rod 17 with its proximal end attached to one end in the width direction of the frame 11. A substantially central portion in the longitudinal direction of the support lever 19 is pivotally supported by a bolt. That is, when the support lever 19 is swung in a direction perpendicular to the conveyance surface 4 with the bracket 18 as a fulcrum, the support roller 10 is swung in a direction perpendicular to the conveyance surface 4 with the bracket 13 as a fulcrum, and the upward transfer path It is designed to change the cross section of 3. A stopper 20 is formed on the support rod 17 to restrict its upward movement by engaging with the bottom surface of the frame 11 to hold the roller shaft 12 horizontally.

As shown in FIG. 2, the support rollers 10 having the above structure are arranged vertically across the ascending transfer path 3, and the support lever 1
The free ends of the frames 9 are directed toward the same side, and the upper and lower frames 11 and 11 are connected via a connecting frame 21. A pulley 2 is provided at the free end of the support lever 19.
2 are rotatably attached to these pulleys 22, and one end 23a of these pulleys 22 serves as a biasing member that simultaneously biases all the support rollers 10 in the direction of pressing the conveyance surface 4.
A hanging rope 23 is fixed to the nearby frame 11 and has a weight 24 suspended from the other end.This hanging rope 123 is extended from the loading port 9 side to the loading port by straddling the upper and lower pulleys 22 as shown in FIG. The hooks are passed sequentially in a zigzag pattern up to the 8th side.

Next, the operation of the present invention having the above configuration will be described.

Since tension is applied to the hanging row 123 by the weight 24, this tension causes the upper and lower pulleys 22, 22
That is, the upper and lower support levers 19.19 are biased toward each other. The upper and lower bearing rollers 10.10 therefore act to press the conveying surfaces 4, 4 of the conveyor belts 1, 2 against each other.

By the way, the conveyor belts 1 and 2 are rotationally driven so that their conveying surfaces move in the same direction at the same speed, and in this state, when an object to be conveyed such as earth and sand is brought in through the entrance 8, the object to be conveyed rises. It will be transported on the transport path 3. In this case, the bearing roller 1 supporting the conveying surface 4 of the conveying belt 1.2
0, a reaction force that clamps the conveyed object m acts, and this reaction force is transmitted from the joint member 14 to the support rod 17 and the support lever 19.
The tension is transmitted to the suspension row 123 via the suspension row 123, and the tension is balanced with that tension. That is, the tension of the hanging rope 23 allows the support roller 10 to rotate around the bracket 13 in accordance with the size of the conveyed object n1 passing through the ascending transfer path 3, thereby expanding the ascending transfer path 3. It turns out. By being held by the tension of the hanging rows 123, the objects to be conveyed are reliably and smoothly conveyed according to the amount of conveyance, without causing slippage in the case of clogging in the ascending transfer path 3.

[Modification 1 of the Invention Instead of the weight 24 described above, a spring, a cylinder, or the like may be employed. In the embodiment, the hanging rope 23 is passed continuously, but the hanging rope 123 may be divided into a plurality of blocks and the hanging rope 23 is passed for each block. Incidentally, the biasing member is not limited to the hanging row 123, and may be constructed by a link. Further, in the embodiment, a set of two supporting rollers 10 is used, but a set of three or more may be used, and these may be set according to the width of the conveyor belt. That will happen.

[Effects of the Invention] In summary, the present invention provides the following excellent effects.

(1) The support roller that supports and covers the conveyance surface of the conveyor belt is configured to be flexible, so that the reaction force exerted on the support roller by the conveyed object and the urging force of the urging member are balanced, so that the conveyance of the conveyed object is made easier. The cross-sectional area of the trough can be automatically changed depending on the amount.

(2) Therefore, the objects to be transported can be transported reliably and smoothly according to the amount of transport, and the cargo handling efficiency can be improved as much as possible.

(3) Since the biasing member that presses the support rollers against the conveyance surface is passed between the support levers that swing the support rollers relative to the conveyance surface, it is possible to reliably apply all the support rollers with one biasing member. The structure can be simplified, and manufacturing and maintenance are easy.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of the present invention; - Fig. 1 is a schematic side view of the conveyor, Fig. 2 is an enlarged sectional view taken along line A-A in Fig. 1, and Fig. 3 is an enlarged sectional view of the same essential parts. It is a diagram. In the figure, 1.2 is a conveyor belt, 3 is an ascending transfer path, 4 is a conveyance surface, 10 is a support roller, 19 is a support lever, and 23 is a hanging rope serving as a biasing member. Patent applicant: Ishikawajima-Harima Heavy Industries Co., Ltd. Agent: Patent attorney: Nobuo Kinutani Figure 2, 22

Claims (1)

[Claims] Conveyor belts are stretched in parallel with their conveyor surfaces pressed against each other to form an upward transfer path for the conveyed object, and conveyor belts are provided on the conveyor surfaces of these conveyor belts at appropriate intervals along the direction of the conveyor belt. The bearings L1--ra are connected to each other in a flexible manner in the width direction of the conveyor belt, and are connected to the connecting portion of these bearing rollers, so that the bearing rollers can be freely swung relative to the conveyance surface. The conveyor belt is characterized by comprising a support lever that is supported by the support lever, and a force member that is hooked between the support levers and simultaneously biases the support roller in a direction to press the support roller against the conveyance surface. V0