JPH10316244A - Trough connecting structure of air floating type rollerless belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect the trough members with a simple structure by positioning one of the unit trough members, on an upper side of a connection guide member mounted on a rear side of the other unit trough member, while projected from an edge face by a specific amount, and fastening both unit trough members by an adhesive agent filled between the opposite edge faces thereof. SOLUTION: A connection guide 26 as a connection guide member, is fixed to a rear face of one of the units troughs 21' to be connected, in such manner that an edge thereof is projected from an edge face of the unit trough 21' by a specific amount, and the other unit trough 21" is positioned on an upper face of the connection guide 26. The epoxy adhesive agent 28 is filled between the opposite edge faces of the unit trough 21' and the unit grough 21", to fasten the troughs thereby. The troughs can be connected by the very easy operation with the very simple structure, that is, the connection guide 26 is mounted on the rear face of the unit trough 21', the other unit trough 21" is positioned on the upper face of the connection guide 26, and the adhesive agent 28 is filled between the opposite edge faces of the unit trough 21' and the unit trough 21".

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-floating rollerless belt conveyor for loading ore ore, coal, etc., on a load-bearing belt which is moved and driven while being floated by air, and connecting unit trough members. The invention relates to a trough connection structure of an air-floating rollerless belt conveyor forming the trough member.

[0002]

2. Description of the Related Art As a transport mechanism for transporting bulk materials such as ore and coal, use of an air-floating rollerless belt conveyor that floats and holds a carrier belt by an air layer has recently been proposed.

An air-floating rollerless belt conveyor is
As shown in a schematic cross-sectional perspective view of an example in FIG. 7, trough members 2 and 2 'for defining the shape of the carrier belt 1 (valley shape on the forward path and mountain shape on the return path) are provided on the side plates 4 on the left and right sides, respectively. To form a closed-section trough frame which is supported vertically at predetermined intervals, extends along the direction of movement of the carrier belt 1, and has air ducts 3.3 on the lower surface side of the center of the trough members 2, 2 '. ′ Are provided along the trough members 2 2 ′, and air supplied by a blower (not shown) is supplied to the air ducts 3 3 ′ from the orifices 2 A 2 A ′ formed in the trough members 2 2 ′. 2.
The carrier belt 1 is jetted to the upper surface side to form an air layer between the trough members 2 and 2 ′ and the carrier belt 1 so that the carrier belt 1 floats.

[0004] With such a configuration, the carrier belt 1 can be moved with extremely low resistance without generating noise or vibration, and the noise generated by the rotation of the roller as in a roller belt conveyor that supports the carrier belt with carrier rollers. It does not affect the working environment or surrounding environment due to vibration or vibration.

[0005] In such an air-floating rollerless conveyor, the trough member is a long structure that is continuous over the entire length of the conveying distance by the conveyor. Because the length is regulated by road conditions and road conditions, the unit trough members are divided and formed, and the unit trough members are individually transported to the installation location and connected and integrally formed there.

In the connection structure of the trough member, a flange is provided at a joint end of the unit trough member, and the flanges of the unit trough members to be connected are fastened with a seal material interposed therebetween. For example, as shown in FIG. 8, the joining end faces of the trough frame (unit trough member and side plate), the flanges 2B and 2B 'of the transport trough 2 and the return trough 2' are respectively disposed on the lower side, and the frame side plate 4 The flange 4A is disposed outside thereof. Further, the air ducts 3 and 3 'of the transport trough 2 and the return trough 2' are not connected at the connection portions of the unit trough members as shown in FIG. Is formed.

[0007]

However, in the connection structure of the trough member as described above, a hand hole for fastening the flange 2B located inside the closed cross section of the transport trough 2 is formed in the frame side plate 4. It is necessary to form an opening, and since the air duct 3 is formed independently in each unit trough, a pipe for supplying air is required for each unit trough.
There has been a problem that the structure is complicated and the cost is increased.

As shown in FIG. 10 which is a cross-sectional view corresponding to FIG. 9, a flange 3A is also provided in the air duct 3 and the flange 3A is fastened to be continuous without being formed independently for each unit trough. It is conceivable, but then the air duct 3
Since the flange 2B on the trough side (transfer trough 2) is located inside A, a hand hole for fastening the flange 2B is required in the air duct 3A, and the fastening work in the narrow air duct 3A is required. Extremely difficult,
There is a problem that the air pressure loss is increased by the flange 2B.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a trough connection structure of an air-floating rollerless belt conveyor which can be easily connected with a simple structure. And

[0010]

According to the present invention, there is provided a trough connection structure for an air-floating rollerless belt conveyor according to the present invention, wherein the trough is provided below a load belt along a direction in which the load belt is disposed. The member is extended, and an air supply path is provided below the trough member, and the air supply path is supplied from the air supply path to the upper surface side of the trough member through an orifice formed in the trough member. An air-floating rollerless conveyor configured to allow air to float the load belt from the surface of the trough member, wherein the unit trough member is connected to form the trough member. The other unit trough member is located above the connection guide member provided on the back surface side of the member so as to protrude from the end surface by a predetermined amount, and both unit trough members are filled between the opposing end surfaces. Characterized in that it is fixed by Chakuzai.

Further, the connection guide member is provided on the unit trough member on the downstream side in the moving direction of the carrier belt.

Further, the air supply passage is formed integrally with the unit trough member by fixing an air passage forming member having an upper side open to a lower surface of the unit trough member. The air passage forming member of the other unit trough member is fitted into a connection guide member provided on the inner surface of the air passage forming member of one of the unit trough members so as to protrude from the end surface by a predetermined amount, and the air passage forming member of the other unit trough member is provided between the opposed end surfaces of the two air passage forming members. Characterized by being bonded by an adhesive filled in the substrate.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing a conceptual configuration of an entire air-floating rollerless belt conveyor to which a connection structure of an air-floating rollerless belt conveyor according to the present invention is applied, and FIG. 2 is an enlarged cross-sectional view along AA of FIG. .

The illustrated air-floating rollerless belt conveyor 10 has a drive pulley 1 at front and rear ends of a trough frame 20.
1 and the driven pulley 12 are arranged,
Carrier belt 15 as a carrying belt between 1 and 12
Is wound. The driving pulley 11 is driven to rotate by a motor (not shown), and the rotation of the driving pulley 11 drives the carrier belt 15 to rotate.

The trough frame 20 is connected to the conveyor 10
Between a pair of left and right side plates 20A continuous over the entire length of
A pair of upper and lower troughs (transport trough 2) as trough members
1, a return trough 22) is fixed in a erected state, and is formed in a box shape having a closed cross section continuous in the longitudinal direction of the conveyor 10.

The transport trough 21 is formed by bending a steel plate having a predetermined thickness at a predetermined bending radius at a predetermined angle to form a concave shape in which a bottom is an arc having a predetermined radius and both edges are open upward at a predetermined angle. Both edges are fixed to the upper edge of the side plate 20A.

The return trough 22 is formed by bending a steel plate having a predetermined thickness to be shallower than the transport trough 21 with its open side facing downward (convex shape) and fixed to the lower edge of the side plate 20A at both edges. I have.

Duct members 23A and 24A having a substantially U-shaped cross section as air passage forming members are fixed at the center in the width direction on the lower surface side of the transport trough 21 and the return trough 22, respectively. A blower 25 that supplies air to these air ducts 23 and 24 is formed.
Is connected.

The positions corresponding to the air ducts 23 and 24 of the transport trough 21 and the return trough 22 (that is, the transport trough 21).
And the center of the return trough 22), the air ducts 23, 2
Orifices 21A and 22A each having a predetermined diameter and formed so as to communicate between the inside and outside of the base 4 are arranged in a line at predetermined intervals in the direction in which the troughs 21 and 22 extend.

The carrier belt 15 is an endless belt having a predetermined width. As described above, the carrier belt 15 is wound between the driving pulley 11 and the driven pulley 12 with the upper side of the transport trough 21 and the return path trough 22 as moving paths. The upper moving path 21 has a shape that opens upward following the shape of the transport trough 21, and the upper moving path of the returning trough 22 has a shape that opens downward following the shape of the returning trough 22. The transported articles are transported along the transport path along the transport trough 21, and return to the transported article loading position along the transport path along the return trough 22.

A flat cover 13 is provided between the upper surfaces of the left and right side plates 20A.
A transfer space 14 isolated from the outside is formed on the upper side of 1. The carrier belt 15 on which the articles are loaded moves in the transport space 14. This transport space 1
The upstream side 4 communicates with the loading space 17 formed by the supply chute 16 and the downstream side communicates with the discharge space 19 formed by the discharge chute 18.

The discharge space 19 is connected to a suction device 30 having a back filter 32 interposed in a suction path of a blower 31. The suction device 30 suctions the inside of the discharge space 19 to a negative pressure. It prevents internal dust from escaping to the outside. The dust collected by the back filter 32 is returned to the discharge space via the rotary feeder 33.

The conveyor 10 configured as described above is
The carrier belt 15 is driven to rotate by the rotation of the driving pulley 11, and is moved from the driven pulley 12 side to the transport trough 21.
Along with the drive pulley 11, and from the drive pulley 11 to the driven pulley 12 along the return path trough 22. At the same time, the air ducts 23 and
Air is supplied to 24. The air supplied to the air ducts 23 and 24 is supplied to the trough 2 from the orifices 21A and 22A.
The carrier belt 15 is blown upward, forming an air layer between the upper surfaces of the troughs 21 and 22 and the lower surface of the carrier belt 15 so that the carrier belt 15 floats and leaks outside from the side edges. As a result, the carrier belt 15 is
From the position 2, it comes into a floating state and becomes non-contact, so there is no friction and it moves smoothly without generating noise or vibration. The air that has contributed to the floating of the carrier belt 15 is transferred to the transport space 14.
The conveyed material which is sucked by the suction device 30 through the trough frame 20 to the discharge space 19 is loaded from the supply chute 16 on the carrier belt 15 near the driven pulley 12, and the conveyance trough of the carrier belt 15 is conveyed. The paper is conveyed to the discharge chute 18 by the movement along 21.

Here, the trough frame 20 is configured such that unit trough frames 20 ', which are divided into a plurality in the longitudinal direction, are individually transported and connected at an installation place to be integrally formed.

The unit trough frame 20 ′ is
0A 'is a unit transport trough 21' and a unit return trough 2 as unit trough members by fastening via a flange.
2 '(including the unit air ducts 23' and 24 ') is positioned by a guide member and is adhered and fixed by an adhesive 28.

That is, as shown in FIG. 3, the unit trough frame 20 'has a flange 20B' formed on the outside of the joint end surface of the unit side plate 20A ', as shown in FIG. Are connected and fixed by fastening the flanges 20B '.

On the other hand, the unit troughs 21 'and 22' are perspective views of a connecting portion of the unit transport trough 21 '(a connecting portion of the unit trough 21' and the unit trough 21 "), and are exploded perspective views thereof. FIG. 6 is an enlarged sectional view taken along the line BB of FIGS. 5 and 4.
As shown in (A), a connection guide 26 as a connection guide member is provided on the back surface of one unit trough 21 ′ (located on the downstream side in the moving direction of the carrier belt 15 in the present configuration example). Is fixed by projecting a predetermined amount from the end face of the unit trough 21 ′, and the other unit trough 21 ″ is located on the upper surface of the connection guide 26.
An adhesive 28 made of epoxy or the like is filled between the opposing end faces of the unit trough 21 'and the unit trough 21 ", and thereby both are fixed.

The connection guide 26 has a predetermined width and the unit trough 2
1 'is formed along the back surface of the unit trough 21'.
The edge is fixed to the back surface by welding, but at a position corresponding to the unit duct member 23A 'forming the unit air duct 23', it is divided into three members to avoid interference.

In the unit duct member 23A 'forming the unit air duct 23', connection guides 27 are fixed to three inner surfaces (left and right side surfaces and a lower surface), respectively. 23A "is fitted, and the unit duct member 23 'and the unit duct member 23
Both are fixed to each other by an adhesive 28 filled between the opposed end faces of A ″.

According to the connection structure of the trough and the air duct (the connection structure of the unit trough 21 'and the unit trough 21 ") as described above, it is extremely difficult to provide only the connection guide 26 on the back surface of the unit trough 21'. With a simple structure, the other unit trough 21 ″ is connected to the upper surface of the connection guide 26 by a very simple operation of filling the adhesive 28 between the opposing end surfaces of the unit trough 21 ′ and the unit trough 21 ″. be able to.

The air duct connection structure (unit duct member 23A 'and unit duct member 23
A ″ connection structure) is also a simple configuration that is similarly provided on the connection guide 27 on the unit duct member 23A ′, and the unit duct member 23A ″ is fitted on the connection guide 27 to form the unit duct member 23A ′ and the unit duct member. The connection can be performed by a simple operation of filling the adhesive 28 between the opposing end faces of 23A ″.

The airtightness of the portion corresponding to the air duct 23 at the connection portion of the trough 21 and the airtightness of the joint portion of the air duct 23 can be easily maintained by filling the adhesive 28 since the adhesive 28 functions as a sealing material. There is no need to use other sealing materials.

Further, as in the present configuration example, the connection guide 26 as a connection guide member is provided on the back surface of the unit trough 21 ′ located on the downstream side in the moving direction of the carrier belt 15, so that the carrier belt 15 6B, a connection error (step) of the unit trough 21 ″ located on the upstream side in the moving direction occurs on the side where the upper surface is higher than the upper surface of the unit trough 21 ′, as shown in FIG. 6B. Even if a step occurs, the carrier belt 15 moves from the side with the higher step to the lower side, so that the risk of being caught or worn can be avoided.

Although the above configuration example shows the case where the air duct 23 is also connected, the air duct 23 may be independent for each unit trough. By doing so, the connection guide 26
Since it is not necessary to divide the unit troughs, the shape is simplified, and the work of connecting the unit troughs 21 'and 22' is further facilitated.

The return trough 22 is formed in a convex shape.
This is applied to an example in which the surface side (load side) of the carrier belt 15 that moves from the driving pulley 11 side to the driven pulley 12 side is concave, but the shape of the trough is not limited to this. Instead, it may be concave or flat, and can be changed as appropriate.

[0036]

As described above, according to the trough connection structure of the air-floating rollerless belt conveyor according to the present invention, a connection guide projecting from the end face on the back side of one unit trough member by a predetermined amount is provided. The other unit trough member is located on the upper side of the member, and both unit trough members are fixed by an adhesive filled between the opposing end surfaces, so that the unit trough member is provided with a connection guide member in a simple configuration. It can be connected by an easy operation of filling an adhesive between opposing end surfaces of the unit trough members.

Further, since the connection guide member is provided on the unit trough member on the downstream side in the moving direction of the carrier belt, the connection error (step) of the unit trough member located on the upstream side in the moving direction of the stretcher belt is reduced. The upper surface is formed on the side higher than the upper surface of the unit trough member on the downstream side, and even if there is a step in the connecting portion, the upper side in the moving direction of the stretcher belt may be higher, so that the stretcher belt may be caught or promote wear. Not something.

Further, the connecting portion of the air passage forming member forming the air supply passage is connected to a connecting guide member provided on the inner surface of the air passage forming member of one of the unit trough members so as to protrude from the end face by a predetermined amount, and the other unit is formed. The air passage forming member of the trough member is fitted and connected by the adhesive filled between the opposed end surfaces of the two air passage forming members, so that the air passage forming member is provided with a connection guide member in a simple configuration. The connection can be performed by a simple operation of fitting the other unit trough member to the connection guide member and filling the gap between the opposed end surfaces of the air passage forming member with an adhesive.

[Brief description of the drawings]

FIG. 1 is a side view showing a conceptual configuration of an entire air-floating rollerless belt conveyor to which a connection structure of an air-floating rollerless belt conveyor according to the present invention is applied.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is a view showing a joint end surface of a unit trough frame.

FIG. 4 is a perspective view of a connecting portion of the transport trough.

FIG. 5 is an exploded perspective view of a connecting portion of the transport trough.

6A is an enlarged sectional view taken along line BB of FIG. 4, and FIG. 6B is a view showing a state in which a connection error has occurred.

FIG. 7 is a schematic cross-sectional perspective view of an example of an air-floating rollerless belt conveyor as a conventional example.

FIG. 8 is a view showing a joint end surface of a trough frame as a conventional example.

FIG. 9 is a sectional view taken along the line ZZ in FIG. 8;

FIG. 10 is a sectional view showing a connection structure of a conventional air duct.

[Explanation of symbols]

Reference Signs List 10 conveyor 15 carrier belt (loading belt) 21 transport trough (trough member) 21 'unit transport trough (unit trough member on the downstream side in the moving direction of the transport belt) 21 "unit transport trough (unit trough member) 21A orifice 22 return path Trough (trough member) 22A Orifice 23, 24 Air duct (air supply path) 23A, 24A Duct member (air passage forming member) 26 Connection guide (connection guide member) 27 Connection guide (connection guide member) 28 Adhesive

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yukihiko Ezaki 1-19-10 Mori, Koto-ku, Tokyo Ishikawajima-Harima Heavy Industries, Ltd.Koto Office

Claims (3)

[Claims] 1. A trough member extends below a load belt along a direction in which the load belt is disposed, and an air supply path is disposed below the trough member. An air-floating rollerless conveyor configured to cause air supplied from a path to an upper surface side of the trough member through an orifice formed in the trough member to float the load belt from the surface of the trough member. In the above structure, the unit trough member is connected to form the trough member, and the other unit trough member is provided above a connection guide member provided on a rear surface side of one of the unit trough members so as to protrude from the end surface by a predetermined amount. A trough connection structure for an air-floating rollerless belt conveyor, wherein the two unit trough members are fixed by an adhesive filled between their opposed end surfaces. 2. The trough of an air-floating rollerless belt conveyor according to claim 1, wherein the connection guide member is provided on the unit trough member on the downstream side in the moving direction of the carrier belt. Connection structure. 3. The air supply passage is formed integrally with the unit trough member by fixing an air passage forming member having an upper side open to a lower surface of the unit trough member, and a connecting portion of the air passage forming member includes: The air passage forming member of the other unit trough member is fitted into a connection guide member provided on the inner surface of the air passage forming member of one of the unit trough members so as to protrude from the end surface by a predetermined amount, and the air passage forming member of the other unit trough member is provided between the opposed end surfaces of the two air passage forming members. The trough connection structure for an air-floating rollerless belt conveyor according to claim 1 or 2, wherein the trough connection structure is connected by an adhesive filled in the belt.