JP4109929B2 - Conveyor belt - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a conveyor belt.
[0002]
[Prior art]
If there is a bent part in the transport path of the conveyor device that transports irregular shaped objects such as earth and sand or ore, the trough of the roller that should be positioned on the radially outer side of the bend among the left and right rollers that make up the idler The angle is set larger than that of the roller that should be positioned on the inner side in the radial direction, and the conveying belt is forced to bend and travel.
[0003]
[Problems to be solved by the invention]
However, conventionally, it is not considered that the conveyor belt is actively bent, and the conveyor belt cannot be bent and traveled unless the radius of the bent portion of the conveyor path is set to 30 m or more.
[0004]
In addition, it is inevitable that the belt tension changes due to the load of the conveyance object, and it is necessary to separately provide a roller for suppressing the shift in the width direction of the conveyance belt due to this.
[0005]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a conveyance belt capable of bending with a small radius.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a conveyor belt according to a first aspect of the present invention includes an endless belt body having flexibility and capable of stacking an object to be conveyed on an outer peripheral surface thereof, A number of stiffening members embedded in the belt main body so as to extend and line up at a predetermined interval in the belt circumferential direction, and side wall members that are provided around the left and right edges of the outer peripheral surface of the belt main body and extend in the belt circumferential direction. An endless traction member that extends around the inner peripheral surface of the belt body and can be bent in the belt width direction, and a stiffening member that is arranged at a predetermined interval in the belt circumferential direction and faces the traction member. And a plurality of drive members that are attached to the pulling member at intervals corresponding to the follower members and that can be engaged with the follower members.
[0007]
The conveyor belt according to claim 2 of the present invention has a groove extending in the belt width direction on the inner peripheral surface of the belt main body so as to be positioned between the stiffening members.
[0008]
According to a third aspect of the present invention, the conveyor belt includes partition members connected to the outer peripheral surface of the belt main body and the left and right side wall members at substantially equal intervals in the belt circumferential direction.
[0009]
In the conveyor belt according to claim 1 of the present invention, the drive member attached to the chain is engaged with the driven member attached to the belt main body, and the movement of the chain is performed via the drive member, the driven member, and the stiffening member. This is transmitted to the belt body, and the lateral bending of the belt body is suppressed by the rigidity of the stiffening member.
[0010]
In addition, the side wall member that can be stretched in the belt circumferential direction around the left and right edges of the outer peripheral surface of the belt body allows the belt body to slide down to the side of the belt body without impairing the flexibility of the belt body. Suppress. In other words, with the stiffening member necessary for chain transport adopted to eliminate the conventional problems, the trough angle of the roller that should be positioned on the radially outward side of the belt body bend as in the conventional case is set large. It is possible to solve a new problem that sliding cannot be prevented. In addition, by implementing the means of the present invention and realizing a minimal radius, it is possible to solve a new problem that the object to be transported easily slides outward in the radial direction of the belt main body bend. it can.
[0011]
In the transport belt according to the second aspect of the present invention, the right and left bendability of the belt body is improved by the grooves formed in the belt body so as to be positioned between the stiffening members.
[0012]
In the conveyance belt according to the third aspect of the present invention, the sliding of the conveyance object in the belt circumferential direction is suppressed by the partition member connected to the outer peripheral surface of the belt main body and the left and right side wall members.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
1 to 5 show a first example of an embodiment of a conveyor belt according to the present invention.
[0015]
The conveyor belt is embedded in an endless belt body 1 on which an object to be transported such as earth and sand or an ore can be loaded on the outer peripheral surface, and in the belt body 1 so as to extend in the belt width direction and line up at substantially equal intervals in the belt circumferential direction A stiffening member 6, a side wall member 2 that is provided in the vicinity of both left and right edges of the outer peripheral surface of the belt body 1 and that can be expanded and contracted in the belt circumferential direction, a chain 18 that extends along the inner peripheral surface of the belt body 1, A driven rack 19 mounted on the belt main body 1 so as to be arranged at a predetermined interval in the circumferential direction of the belt and facing the chain 18, and a drive mounted on the chain 18 at an interval corresponding to the driven rack 19 and meshable with the driven rack 19 Rack 20.
[0016]
The belt main body 1 is formed of a rubber-based material having excellent flexibility.
[0017]
The stiffening member 6 is obtained by processing a steel material, and the rigidity of the stiffening member 6 suppresses the lateral bending of the belt body 1.
[0018]
The side wall member 2 is formed integrally with the belt main body 1 from a rubber-based material having excellent flexibility, and has a regular wave shape in the belt circumferential direction when viewed from the direction facing the outer peripheral surface of the belt main body 1. It extends.
[0019]
Thus, when the outer peripheral surface of the belt body 1 is curved in a convex shape or a concave shape when viewed from the side of the belt, the side wall member 2 is expanded and contracted in the belt circumferential direction according to the degree of curvature of the belt body 1. Yes.
[0020]
Further, grooves 7 extending in the belt width direction are formed on the inner peripheral surface of the belt body 1 so as to be positioned between the respective stiffening members 6, so that the belt body 1 can be bent to the left and right. ing.
[0021]
Further, when the partition member 3 formed of a rubber material and connected to the outer peripheral surface of the belt body 1 and the left and right side wall members 2 is provided at substantially equal intervals in the belt circumferential direction, and there is an inclined portion in the transport path, the object to be transported It prevents the objects from sliding down.
[0022]
The chain 18 includes a pair of left and right inner plates 8 arranged in the circumferential direction, a roller 9 disposed between a front end portion and a rear end portion between the inner plates 8, and pivotally supports the rollers 9 on the left and right inner plates 8. A pair of left and right outer sides that are locked to the pin 10 such that the front end portion overlaps the portion near the rear end of the inner plate 8 and the rear end portion overlaps the portion near the front end of the inner plate 8. It consists of a plate 11.
[0023]
A clearance is set in advance between the inner peripheral surface of the pin hole drilled in the inner plate 8 and the outer peripheral surface of the pin 10 inserted through the pin hole, so that the chain 18 can be bent left and right. ing.
[0024]
On the outer plate 11 arranged in the circumferential direction, every other one of them, a mounting seat 22 that protrudes toward the belt body 1 and faces the stiffening member 6, and a protrusion that protrudes away from the belt body 1 and with respect to the mounting seat 22. Parallel sliding seats 23 are provided so as to protrude laterally.
[0025]
The driven rack 19 is bolted to the stiffening member 6 so that the meshing teeth face the mounting seats 22 of the left and right outer plates 11, and the drive rack 20 is driven rack with the meshing teeth facing the belt body 1 side. A bolt is fastened to each mounting seat 22 of the outer plate 11 so as to be able to mesh with 19.
[0026]
The length of the drive rack 20 in the moving direction of the chain 18 is set to about three times that of the driven rack 19, and even if the difference in physical properties of the constituent materials of the belt body 1 and the chain 18 and the manufacturing accuracy are taken into consideration, The driven rack 19 can be surely engaged with the drive rack 20 except when passing through the drive mechanism 21 described in the above.
[0027]
The drive mechanism 21 is installed in a range where the object to be transported is not placed on the belt body 1, such as a position close to a place where the belt body 1 turns from the return side movement path to the carrier side movement path, and the belt body 1 and the chain 18. And a pair of upper bend pulleys 24 wound from above so that the inner peripheral surface of the belt main body 1 is in contact with the belt main body 1. The take-up pulley 25 and the lower bend pulley 26 wound from below so that the side wall member 2 and the belt body 1 edge are in contact with each other, and the chain 18 is wound from above. A suspended drive sprocket 27 and an upper bend sprocket 28, and a sprocket 27, 28 disposed between It is composed of 18 and lower bend sprocket 29 and the take-up sprocket 30 wound around from the lower side.
[0028]
Rotation of a motor (not shown) is transmitted to the drive sprocket 27, and the chain 18 is sent out in the direction of arrow S so as to go around.
[0029]
That is, the chain 18 passes through the drive mechanism 21 in the order of the drive sprocket 27, the lower bend sprocket 29, the take-up sprocket 30, and the upper bend sprocket 28.
[0030]
On the other hand, since the belt body 1 is wound around the front and rear upper bend pulleys 24, the take-up pulley 25 and the lower bend pulley 26 disposed therebetween, the belt body 1 and the chain 18 are separated from each other in the circulation path. Accordingly, the meshing between the driven rack 19 and the drive rack 20 is released.
[0031]
On the other hand, even when the belt body 1 is bent except when passing through the drive mechanism 21, the drive rack 20 is engaged with the driven rack 19, and the movement of the chain 18 is prevented by the drive rack 20, the driven rack 19, and the anti-rotation. The belt main body 1 is transmitted to the belt main body 1 through the flexible member 6, and the belt main body 1 circulates at a constant speed with the chain 18.
[0032]
Even if the driven rack 19 and the driving rack 20 are not meshed with each other at several places outside the driving mechanism 21 due to the extension of the belt body 1, the majority of the other driven racks 19 and the driving rack 20 are meshed. Therefore, the movement of the chain 18 is reliably transmitted to the belt body 1.
[0033]
The rotation path of the belt body 1 excluding the drive mechanism 21 is in contact with the support roller 31 that is in contact with the left and right edge portions of one surface of the belt body 1 and the left and right edge portions of the other surface of the belt body 1. Support rollers 32 are installed at predetermined intervals in the belt circumferential direction, and these support rollers 31 and 32 suppress vertical displacement when the belt body 1 circulates.
[0034]
A side rail 34 having a guide surface 33 facing the side surface of the chain 18 is installed at a bent portion of the chain 18 circulation path, and a roller 35 that can roll on the guide surface 33 further faces the side rail 34 outside. The plate 11 is pivotally supported on the mounting seat 22 and the sliding seat 23 via a support shaft 36, and the side rail 34 suppresses inward displacement of the curved path bending portion when the chain 18 circulates.
[0035]
Further, a position adjustment mechanism 44 having a positioning bolt 43 for pressing the side rail 34 toward the chain 18 circulation path side is provided on the side of the side rail 34 opposite to the chain circulation path, and the side rail 34 to the apparatus base plate 45 is provided. The position of the side rail 34 can be adjusted by appropriately increasing or decreasing the amount of protrusion of the positioning bolt 43 while the bolt fastening is loosened.
[0036]
In addition to this, a lower rail 38 having a guide surface 37 facing the sliding seat 23 of the outer plate 11 across a minute gap in the circular path of the chain 18 excluding the drive mechanism 21, along the lower rail 38. The upper rail 40 having the guide surface 39 facing the side opposite to the belt body (the lower side) is arranged between the lower rail 38 and the upper rail 40. Is installed so as to be able to pass in the circumferential direction of the chain 18, and a sliding member 41 slidably contactable with the guide surface 39 of the upper rail 40 is attached to the sliding seat 23, and the vertical direction when the chain 18 circulates Is prevented by both rails 38 and 40.
[0037]
The lower rail 38 is fastened to the apparatus base plate 45 by positioning bolts 46 so that the vertical position can be adjusted.
[0038]
Further, when an excessive load is applied to the belt body 1, the load is borne on the apparatus base plate 45 via the driven rack 19, the drive rack 20, the chain 18, and the lower rail 38, and the belt body 1 sinks. To avoid confusion.
[0039]
Furthermore, a stopper 42 is attached to the side surface of the drive rack 20 so as to protrude toward the belt body 1, and the stopper 42 causes the relative displacement of the drive rack 20 and the driven rack 19 in the width direction of the belt body 1. Is suppressed.
[0040]
1 to 5, the drive rack 20 attached to the chain 18 is engaged with the driven rack 19 attached to the stiffening member 6 on the belt body 1 side to move the chain 18. Since the bending of the belt body 1 is suppressed by the rigidity of the stiffening member 6 while transmitting the belt body 1 without applying excessive tension, the belt body 1 can be bent and traveled with a small radius. It becomes.
[0041]
Further, there is no member vertically passing in the belt circumferential direction inside the belt body 1, and a groove 7 extending in the belt width direction is formed between the stiffening members 6 on the inner circumferential surface of the belt body 1. Therefore, the flexibility of the belt body 1 can be improved.
[0042]
In addition to this, the side wall member 2 that can be expanded and contracted in the belt circumferential direction is provided over the entire circumference in the vicinity of both left and right edges of the outer peripheral surface of the belt body 1, and the partition member 3 that continues to the outer peripheral surface of the belt main body 1 and the left and right side wall members 2 is provided. Since the belt body is provided at substantially equal intervals in the circumferential direction of the belt, slipping of the object to be conveyed from the belt body 1 can be effectively suppressed without impairing the flexibility of the belt body 1.
[0043]
In addition, since the circulation paths of the belt main body 1 and the chain 18 passing through the drive mechanism 21 are separated and independent, the belt main body 1 is not affected by the difference in physical properties of the belt main body 1 and the chain 18 and the production accuracy. In addition, the chain 18 can be reliably circulated.
[0044]
FIGS. 6 to 11 show a second example of the embodiment of the conveyor belt of the present invention. In the figure, the parts denoted by the same reference numerals as those in FIGS. 1 to 5 represent the same thing.
[0045]
In this conveyor belt, instead of the driven rack 19 and the drive rack 20 (see FIGS. 1 to 3) described above, bolts are fastened to the stiffening members 6 of the belt body 1 arranged in the belt circumferential direction at predetermined intervals. A large number of driven plates 47, a plurality of linear driven projections 48 provided on the driven plate 47 so as to protrude toward the chain 18 at a predetermined density, and the circumference of the chain 18 at intervals corresponding to the driven plates 47. A plurality of drive plates 49 that are bolted to the respective mounting seats 22 of the outer plate 11 so as to be aligned in the direction and face the driven plate 47, and the drive plate 49 to the belt body 1 side with a density substantially equal to that of the driven projections 48. A plurality of drive protrusions 50 are provided so as to protrude.
[0046]
The driven plate 47 and the driven projection 48, and the drive plate 49 and the drive projection 50 are integrally formed.
[0047]
A gap in which the driving protrusion 50 can be inserted is set between the front and rear, left and right driven protrusions 48, and the driven protrusion 48 can be inserted between the front and rear, left and right adjacent driving protrusions 50. Even when the belt main body 1 is bent except when the belt main body 1 and the chain 18 pass through the drive mechanism 21 (see FIG. 5), a gap is set, and the drive protrusion 50 is engaged with the driven protrusion 48. Match.
[0048]
As a result, the movement of the chain 18 in the direction of the arrow S is transmitted to the belt body 1 via the drive plate 49, the drive projection 50, the driven projection 48, the driven plate 47, and the stiffening member 6. The belt body 1 circulates at a constant speed.
[0049]
In the drive mechanism 21, as described above, since the circulation paths of the belt main body 1 and the chain 18 are separated, the mutual engagement between the protrusions 48 and 50 is released.
[0050]
Even when the driven projection 48 and the drive projection 50 are not engaged at some places outside the drive mechanism 21 due to the extension of the belt body 1 or the like, the majority of the other driven projections 48 and the drive projections 50 are used. Therefore, the movement of the chain 18 is reliably transmitted to the belt body 1.
[0051]
That is, also in the conveyance belt shown in FIGS. 6 to 11, the driven protrusion 48 protruding from the driven plate 47 on the belt body 1 side is engaged with the driving protrusion 50 protruding from the drive plate 49 attached to the chain 18. Thus, since the movement of the chain 18 is transmitted to the belt body 1 without applying excessive tension, the bending of the belt body 1 is suppressed by the rigidity of the stiffening member 6, so that the belt body 1 with a small radius can be obtained. Can be bent.
[0052]
Further, there is no member vertically passing in the belt circumferential direction inside the belt body 1, and a groove 7 extending in the belt width direction is formed between the stiffening members 6 on the inner circumferential surface of the belt body 1. Therefore, the flexibility of the belt body 1 can be improved.
[0053]
In addition to this, the side wall member 2 that can be expanded and contracted in the belt circumferential direction is provided over the entire circumference in the vicinity of both left and right edges of the outer peripheral surface of the belt body 1, and the partition member 3 that continues to the outer peripheral surface of the belt main body 1 and the left and right side wall members 2 is provided. Since the belt body is provided at substantially equal intervals in the circumferential direction of the belt, slipping of the object to be conveyed from the belt body 1 can be effectively suppressed without impairing the flexibility of the belt body 1.
[0054]
In addition, since the circulation paths of the belt main body 1 and the chain 18 passing through the drive mechanism 21 are separated and independent, the belt main body 1 is not affected by the difference in physical properties of the belt main body 1 and the chain 18 and the production accuracy. In addition, the chain 18 can be reliably circulated.
[0055]
Furthermore, the drive protrusion 50 and the driven protrusion 48 that engage with each other are connected to the drive plate 49 that is attached to the chain 18 via the outer plate 11, and the follower plate that is attached to the stiffening member 6 of the belt body 1. Since it is formed integrally with 47, the strength of the driving force transmission mechanism can be improved.
[0056]
The conveyor belt of the present invention is not limited only to the above-described embodiment, and the lower rail is designed to suppress the downward displacement of the chain using only the lower rail without providing the upper rail. In the range which does not deviate from the gist of the present invention, a sliding material which can be slidably contacted with the guide surface is provided on the sliding seat, an endless body having flexibility such as a steel cord is used instead of the chain, and the like. Of course, changes can be made in.
[0057]
【The invention's effect】
As described above, according to the transport belt of the present invention, the following various excellent effects can be obtained.
[0058]
(1) In the transport belt according to claim 1 of the present invention, the drive member attached to the chain is engaged with the drive member attached to the chain, and the chain is interposed via the drive member, the follower member, and the stiffening member. Since the movement of the belt is transmitted to the belt main body, excessive tension does not act on the belt main body, and the rigidity of the stiffening member suppresses the lateral bending of the belt main body, so that the belt main body can be bent and run with a small radius. It becomes possible.
[0059]
(2) Further, a side wall member that extends around the entire circumference of the belt body on the outer periphery of the belt body and can be extended and contracted in the circumferential direction of the belt body does not impair the flexibility of the belt body, and is conveyed to the side of the belt body. Can be prevented from sliding down.
[0060]
(3) In the conveyor belt according to claim 2 of the present invention, the flexibility of the belt body can be improved by the groove formed on the inner peripheral surface of the belt body.
[0061]
(4) In the conveyance belt according to claim 3 of the present invention, the sliding of the conveyance object in the belt circumferential direction can be suppressed by the partition member connected to the outer peripheral surface of the belt main body and the left and right side wall members.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing a first example of an embodiment of a conveyor belt of the present invention.
2 is a cross-sectional view of a belt main body and a side wall member related to FIG. 1;
FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2;
4 is a plan view of the chain related to FIG. 3;
FIG. 5 is a conceptual diagram showing a drive mechanism for rotating the belt body of FIG. 1;
FIG. 6 is a partial perspective view showing a second example of the embodiment of the conveyor belt of the present invention.
7 is a longitudinal sectional view of a belt main body and a partition member related to FIG. 6. FIG.
FIG. 8 is a side view of the driven plate and the driven protrusion related to FIG. 7;
9 is a view taken along arrow IX-IX in FIG.
10 is a side view of a driving plate and a driving protrusion related to FIG. 7. FIG.
11 is a XI-XI arrow view of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Belt main body 2 Side wall member 3 Partition member 6 Stiffening member 7 Groove 18 Chain (traction member)
19 Driven rack (driven member)
20 Drive rack (drive member)
47 Driven plate (driven member)
48 Driven protrusion (driven member)
49 Drive plate (drive member)
50 Drive protrusion (drive member)

Claims (3)

An endless belt body having flexibility and capable of stacking an object to be conveyed on the outer peripheral surface, and a plurality of embedded belt bodies extending in the belt width direction and arranged at predetermined intervals in the belt circumferential direction. A stiffening member, a side wall member that is provided in the vicinity of both left and right edges of the outer peripheral surface of the belt body and that can be expanded and contracted in the belt circumferential direction, extends so as to be able to circulate along the inner peripheral surface of the belt body, and is bent in the belt width direction Possible endless traction members, a number of driven members arranged on the stiffening member so as to face the traction members and arranged at predetermined intervals in the belt circumferential direction, and to the traction members at intervals according to the driven members A transport belt comprising a plurality of drive members that are mounted and meshable with a driven member. The conveyance belt according to claim 1, wherein a groove extending in the belt width direction is formed on an inner peripheral surface of the belt main body so as to be positioned between the stiffening members. The conveyor belt according to claim 1, wherein partition members connected to the outer peripheral surface of the belt main body and the left and right side wall members are provided at substantially equal intervals in the belt circumferential direction.

Images