KR102482246B1 - Screw Blades For Large Screw Conveyors Having Bending And Mounting Structures - Google Patents

Abstract

Disclosed is a screw blade for a large screw conveyor having a bending structure and a mounting structure, which can solve problems caused by a plurality of welding operations in manufacturing a screw blade mounted along an outer circumferential surface of a rotating shaft. According to an embodiment of the present invention, a screw blade for a large screw conveyor, which is mounted on an inner circumferential surface of a hollow cylinder structure and rotates together with the cylinder structure to transfer an object to be conveyed entering from one side of the cylinder structure to the other side, as the gist of the configuration, comprises: a first plate which forms a plurality of bending structures by a plurality of bending lines connecting upper and lower sides and is mounted adjacent to one side of the cylinder structure; a second plate which forms a plurality of bending structures by a plurality of bending lines connecting the upper side and lower sides and is mounted adjacent to the other side of the cylinder structure; a third plate forming a plurality of bending structures by a plurality of bending lines connecting the upper side and the lower side; and a binding member mounted adjacent to the side of the third plate to bind the first plate and the second plate and to bind the plurality of third plates to each other.

Description

Screw Blades For Large Screw Conveyors Having Bending And Mounting Structures}

The present invention relates to a screw wing for a large screw conveyor, and more particularly, to a screw wing for a large screw conveyor including a bending structure and a mounting structure that can be easily manufactured and installed.

In general, a screw-type material conveying device simply rotates the rotating shaft with a power source such as a motor as a screw blade in the form of a spiral or twist is formed around the outer circumferential surface of a rotating shaft having a certain diameter. Material transfer field to be transferred, such as heat treatment process, coating process, drying process and other production processes, etc. Transfer (supply or discharge) of metal materials of a certain size, as well as recycling, garbage separation, various sludge, plastic chips It is widely used in numerous fields such as transporting grain, agricultural by-products, etc.

On the other hand, as shown in Figure 1, the twisted screw blades formed around the outer circumferential surface of the rotating shaft are generally formed in a continuous integral type with a constant pitch spiral screw blade at a constant distance of the long rotating shaft.

In addition, as the molding or manufacturing method of the screw wing part continuously formed at a certain distance on the outer circumferential surface of the rotating shaft, when the rotating shaft is manufactured by casting or cutting, it may be molded integrally with the rotating shaft, There are many cases in which a large number of separate twist-shaped blades made by twisting thin sheets on a rotating shaft made of pipes are joined by welding. In particular, when the object to be transported is lightweight or the resistance or load applied to the screw during transport is not large, the method of continuously and repeatedly connecting the blades made by twisting thin sheets as above is mainly used.

In addition, in the case of the thin-plate type screw blades made by twisting thin thin plates (metal plates) as described above, after twisting all the blades of a plurality of pitch intervals integrally, inserting them into a rotating shaft, pulling the entire screw blade, A method of welding between the outer circumferential surfaces of the rotating shaft while adjusting one by one to fit the required pitch interval, such as slowing down, or a piece blade divided at regular intervals among the entire screw blades continuously formed at multiple pitch intervals (half pitch, 1 pitch, 2 pitches) It is common to make several parts by dividing them by pitch, etc. (hereinafter referred to as blade blades), and then attach and weld them one by one to the outer circumferential surface of the rotating shaft.

However, the conventional one-piece coupling method of making the entire screw blades having a plurality of pitch intervals integrally and then welding them to the rotating shaft is a very difficult and difficult task in itself to make the entire screw blades integral by bending and twisting thin plates, requiring considerable technology and technology. There was a problem that the work was virtually impossible without advanced equipment, and in particular, the latter conventional piece attachment type manufacturing method that completes the entire screw wing having multiple pitch intervals while attaching several separate pieces of blades one by one by welding. In the case of, when coupling small-sized screw blades to the rotating shaft, welding must be performed on the parts in contact with rotation, but full welding must be performed on the parts in contact with each other between the blades, so it is quite In addition to being a difficult and difficult task, the entire screw blade is irregularly twisted due to the welding work on many and long sections, making it impossible to work unless a highly skilled professional technician is present. It is quite difficult and difficult to process (R-bend) exactly according to the partial screw helix and its curvature that must be equipped with the carving blades, and the task of completing the small pieces by accurately attaching them one by one along the smooth curve of the entire screw blade is also not easy. As a result of the problem, the burden of installing the screw conveyor is considerable.

Therefore, there is a need for a technique capable of solving the above-mentioned problems according to the prior art.

Korean Registered Patent Publication No. 10-1081751 (registration date: November 03, 2011)

An object of the present invention is to solve the problems caused by a number of welding operations in manufacturing a screw wing mounted along the outer circumferential surface of the rotating shaft, and to have a structure that can be stably operated by mounting and installing to the correct dimensions, easily To provide a screw wing for a large screw conveyor that can be manufactured and installed.

A screw wing for a large screw conveyor according to an aspect of the present invention for achieving this object is mounted on an inner circumferential surface of a hollow cylinder structure and rotates together with the cylinder structure to transfer a conveyance object entering from one side of the cylinder structure to the other side. As a screw wing for a large screw conveyor, the first arc formed by the first radius is the upper side, and the second arc formed by the second radius concentric with the first radius is the lower side. A first plate having a plate-like structure forming side edges by a straight line passing through the center, forming a plurality of bending structures by a plurality of bending lines connecting an upper side and a lower side, and mounted adjacent to one side of the cylinder structure; The first arc formed by the first radius is the upper edge, and the second arc formed by the second radius concentric with the first radius is the lower edge. A second plate that is formed in a plate-like structure, forms a plurality of bending structures by a plurality of bending lines connecting the upper side and the lower side, and is mounted adjacent to the other side of the cylinder structure; After being bound to the side of the first plate, a number of them are continuously bound in a spiral shape along the inner circumferential surface of the cylinder structure and bound to the side wall of the second plate, and the number 1 formed by the first radius is the upper side, and the first It is a plate-like structure in which the lower side is the second arc formed by the second radius concentric with the radius, and the side side is formed by the straight line passing through the center of the first radius. A third plate forming a plurality of bending structures by; and a binding member mounted adjacent to the side of the third plate to bind the first plate and the second plate and to bind the plurality of third plates to each other.

In one embodiment of the present invention, the cylinder structure, forming an outer circumferential surface of the cylinder structure, an outer cylinder which rotates by receiving a rotational driving force provided from the outside; an inner cylinder mounted on an inner circumferential surface of the outer cylinder as an integral structure, driven to rotate together with the outer cylinder, and having a hollow structure capable of transporting an object to be conveyed; A mounting rail formed in a continuous spiral form along an inner circumferential surface from one end to the other end of the inner cylinder, recessed by a predetermined depth, and mounting a lower edge of the second plate in a sliding position changeable structure; A first damping rail formed at one end of the mounting rail and mounting the lower side of the first plate in a structure capable of changing the sliding position within a predetermined length range; and a second damping rail formed at the other end of the mounting rail and mounting the lower side of the second plate in a structure capable of changing the sliding position within a predetermined length range.

In this case, a heat blocking layer made of a heat blocking material may be interposed between the outer cylinder and the inner cylinder.

In one embodiment of the present invention, the bending line is formed in a straight line form in a direction parallel to the left side of the side, spaced apart at a predetermined interval, formed in plurality, and bent to form a convex bending structure; And a second line formed in a straight line in a direction parallel to the right side of the side edges, disposed to cross the upper and lower ends of two adjacent first lines at the same time, and bent to form a concave bending structure. can be

In this case, a plurality of screw wings for a large screw conveyor are formed at a predetermined interval between the first line and the second line adjacent to the side of the first plate, and are bound by the third binding member and the third binding member of the third plate. a first binding tool; a plurality of second binding members spaced apart from each other by a predetermined interval between the first and second lines adjacent to the side of the second plate, and coupled to the third binding member of the third plate by a binding member; and a plurality of third binding spheres spaced apart from each other by a predetermined interval between the first and second lines adjacent to both sides of the third plate.

In one embodiment of the present invention, the screw wing for the large-scale screw conveyor is one screw wing extending from one end to the other end of the cylinder structure by binding the first plate, the second plate and the third plate in an integral structure. Forming, the first plate is spaced apart by a predetermined angle along the inner circumferential surface of one end of the cylinder structure and mounted in plurality, the second plate is spaced apart by a predetermined interval along the inner circumferential surface of the other end of the cylinder structure and is mounted in plurality, the one The screw wings may be configured to be mounted in plurality at a predetermined interval along the inner circumferential surface of the cylinder structure.

As described above, according to the screw wing for a large screw conveyor of the present invention, the screw wing mounted along the outer circumferential surface of the rotating shaft is manufactured by having the first plate, the second plate, the third plate and the binding member having a specific structure. In doing so, it is possible to solve problems caused by multiple welding operations, and to provide screw wings for large screw conveyors that can be easily manufactured and installed by having a structure that can be installed and installed in precise dimensions and operated stably. .

In addition, according to the screw wing for a large screw conveyor of the present invention, by having an outer cylinder, an inner cylinder, a thermal insulation layer, a mounting rail, a first damping rail and a second damping rail of a specific structure, the screw wing for a large screw conveyor When the conveyed object to be transferred is in a high temperature state, the position of the first plate and the second plate forming the structure at both ends of the screw wing structure can be naturally changed in the outward direction on both sides, thereby thermally expanding the object in direct contact with the object of high temperature. It is possible to provide a screw wing for a large screw conveyor that can ensure stable operation even in a high temperature environment by preventing the entire deformation of the screw wing structure in advance by resolving the length deformation of the 3 plates on the first and second plates located on both sides. can

In addition, according to the screw wing for a large screw conveyor of the present invention, by arranging the first line and the second line of a specific structure at a specific position and alternately arranging a concave bending structure and a convex bending structure, the first plate, The second plate and the third plate can easily implement a structure corresponding to the inner circumferential surface of the hollow cylinder structure, and as a result, a structure that can be stably installed in close contact with the inner circumferential surface of the cylindrical structure can be easily implemented compared to the prior art.

In addition, according to the screw wing for a large screw conveyor of the present invention, a structure corresponding to the inner circumferential surface of a hollow cylinder structure can be easily implemented by mounting a plurality of screw wings at a predetermined angle and spaced apart from each other along the inner circumferential surface of the cylinder structure. As a result, a structure that can be stably and closely installed on the inner circumferential surface of the cylinder structure can be easily implemented compared to the prior art.

1 is a perspective view showing a screw wing for a screw conveyor according to the prior art.
2 is a perspective view showing a screw wing for a large screw conveyor according to an embodiment of the present invention.
3 is a perspective view showing a screw wing for a large screw conveyor shown in FIG. 2;
4 is a front view showing a screw wing for a large screw conveyor shown in FIG. 3;
FIG. 5 is a development view showing the screw wings for a large-scale screw conveyor shown in FIG. 3 spread out.
6 is a plan view showing only one screw wing on a plan view showing a screw wing for a large screw conveyor shown in FIG. 3 .
7 is a plan view illustrating the first plate shown in FIG. 6;
FIG. 8 is a cross-sectional view along line A-A' of FIG. 7 .
9 is a plan view illustrating the second plate shown in FIG. 6;
FIG. 10 is a plan view illustrating the third plate shown in FIG. 6 .
11 is a front view showing a screw wing for a large screw conveyor according to another embodiment of the present invention.
FIG. 12 is a plan view showing only one screw wing on a plan view showing a screw wing for a large screw conveyor shown in FIG. 12 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to this, terms or words used in this specification and claims should not be construed as limited to ordinary or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Throughout this specification, when a member is said to be located “on” another member, this includes not only a case where a member is in contact with another member, but also a case where another member exists between the two members. Throughout this specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

2 is a perspective view showing a screw wing for a large screw conveyor according to an embodiment of the present invention, and FIG. 3 is a perspective view showing a screw wing for a large screw conveyor shown in FIG. 2 is shown. In addition, FIG. 4 is a front view showing a screw wing for a large screw conveyor shown in FIG. 3, and FIG. 5 is a developed view showing the screw wing for a large screw conveyor shown in FIG. A plan view showing only one screw wing on a plan view showing a screw wing for a large screw conveyor shown in FIG. 3 is shown.

Referring to these drawings, the screw wing 100 for a large screw conveyor according to this embodiment is mounted on the inner circumferential surface of the hollow cylinder structure 101 and rotates together with the cylinder structure 101 to one side of the cylinder structure 101. As a screw wing for a large screw conveyor that transfers a conveyed object entering from the other side, the first plate 110, the second plate 120, the third plate 130 and the binding member 140 having a specific structure are provided. , It can solve problems caused by multiple welding operations in manufacturing screw wings mounted along the outer circumferential surface of the rotating shaft, and can be easily manufactured and installed by having a structure that can be stably operated by mounting and installing to precise dimensions. Screw blades for large screw conveyors can be provided.

Hereinafter, with reference to the drawings, each configuration constituting the screw wing 100 for a large screw conveyor according to the present embodiment will be described in detail.

FIG. 7 is a plan view illustrating the first plate shown in FIG. 6 , and FIG. 8 is a cross-sectional view taken along the line AA′ of FIG. 7 . In addition, FIG. 9 is a plan view showing the second plate shown in FIG. 6 is shown, and FIG. 10 is a plan view showing the third plate shown in FIG. 6 is shown.

2 to 10, in the first plate 110 according to the present embodiment, the first arc formed by the first radius is the upper side Lu, and is concentric with the first radius. The branch is a plate-like structure in which the second arc formed by the second radius is the lower edge Lb and the side edge Ls is formed by the straight line passing through the center of the first radius, and the upper edge Lu and the lower edge Lb ) Forms a plurality of bending structures by a plurality of bending lines 150 connecting, and is configured to be mounted adjacent to one side of the cylinder structure 101.

In the second plate 120 according to the present embodiment, the first arc formed by the first radius is the upper side (Lu), and the second arc formed by the second radius concentric with the first radius is the lower side. It is a plate-like structure in which the side Ls is formed by a straight line passing through the center of the first radius, and a plurality of bending lines 150 connecting the upper side Lu and the lower side Lb. It forms a bending structure of, and is configured to be mounted adjacent to the other side of the cylinder structure 101.

The third plate 130 according to the present embodiment is bound to the side (Ls) of the first plate 110 and then continuously bound in a spiral shape along the inner circumferential surface of the cylinder structure 101 to form a second plate ( 120), the first arc formed by the first radius is the upper edge (Lu), and the second arc formed by the second radius concentric with the first radius is the lower edge (Lb). It is a plate-like structure in which the side (Ls) is formed by a straight line passing through the center of the first radius, and a plurality of bending structures are formed by a plurality of bending lines (150) connecting the upper side (Lu) and the lower side (Lb). It is a structure that

In addition, the binding member 140 according to the present embodiment is mounted adjacent to the side (Ls) of the third plate 130 to bind the first plate 110 and the second plate 120, and a plurality of third It is a configuration for binding the plates 130 to each other.

Meanwhile, as shown in FIGS. 7 to 10, each of the first plate 110, the second plate 120, and the third plate 130 has a first line 151 and a second line ( A plurality of bending lines 150 including 152 are formed.

Specifically, the first line 151 is formed in a straight line in a direction parallel to the left side Ls1 of the side Ls, and is formed in multiples at a predetermined interval, and can be bent to form a convex bending structure. there is.

In addition, the second line 152 is formed in a straight line shape in a direction parallel to the right side Ls2 of the side sides Ls, so as to cross the upper and lower ends of the two adjacent first lines 151 at the same time. Arranged, it can be bent to form a concave bending structure.

At this time, a plurality of first binding spheres 111 may be formed by being spaced apart by a predetermined interval between the first line 151 and the second line 152 adjacent to the side Ls of the first plate 110 . The first plate 110 can be easily and stably assembled by the binding member 140 binding the first binding member 111 and the third binding member 131 of the third plate 130 to each other.

In addition, a plurality of second binding members 121 may be formed at a predetermined interval between the first line 151 and the second line 152 adjacent to the side Ls of the second plate 120 . The second plate 120 can be easily and stably assembled by the binding member 140 binding the second binding member 121 and the third binding member 131 of the third plate 130 to each other.

The above-mentioned third binding member 131 is formed in plurality at a predetermined interval between the first line 151 and the second line 152 adjacent to both sides Ls of the third plate 130, respectively. desirable.

In this case, according to the present embodiment, by disposing the first line 151 and the second line 152 of a specific structure at a specific position and alternately arranging a concave bending structure and a convex bending structure, the first plate (110), the second plate 120 and the third plate 130 can easily implement a structure corresponding to the inner circumferential surface of the hollow cylinder structure 101, and as a result, stably adhere to the inner circumferential surface of the cylindrical structure 101 A structure that can be installed can be easily implemented compared to the prior art.

As described above, the screw wing 100 for a large screw conveyor according to the present embodiment binds the first plate 110, the second plate 120 and the third plate 130 in an integral structure to form a cylinder structure 101) to form one screw wing 102 extending from one end to the other end. At this time, as shown in FIGS. 2 to 5, a plurality of first plates 110 are mounted at a predetermined angle along the inner circumferential surface of one end of the cylinder structure 101, and the second plate 120 is a cylinder structure ( 101) along the inner circumferential surface of the other end, spaced apart by a certain interval, and may be mounted in multiple numbers. At this time, it is preferable that a plurality of screw wings are mounted along the inner circumferential surface of the cylinder structure 101 at regular intervals.

In this case, according to the present embodiment, a structure corresponding to the inner circumferential surface of the hollow cylinder structure 101 is provided by mounting a plurality of screw wings 102 at a predetermined angle and spaced apart from each other along the inner circumferential surface of the cylindrical structure 101. Can be easily implemented, and as a result, a structure that can be stably installed in close contact with the inner circumferential surface of the cylinder structure 101 can be easily implemented compared to the prior art.

11 is a front view showing a screw wing for a large screw conveyor according to another embodiment of the present invention, and FIG. 12 shows only one screw wing on a plan view showing a screw wing for a large screw conveyor shown in FIG. 12 A plan view is shown.

Referring to these drawings, the cylinder structure 101 according to this embodiment includes an outer cylinder 101a, an inner cylinder 101b, a mounting rail 101c, a first damping rail 101d, and a second damper having a specific structure. It may be a configuration including the rail (101e).

Specifically, the outer cylinder 101a forms an outer circumferential surface of the cylinder structure 101, and rotates by receiving a rotational driving force provided from the outside.

The inner cylinder 101b is mounted integrally on the inner circumferential surface of the outer cylinder 101a, and is rotationally driven together with the outer cylinder 101a, and has a hollow structure capable of transporting an object to be transported.

At this time, it is preferable that a thermal barrier layer 101f made of a thermal barrier material is interposed between the outer cylinder 101a and the inner cylinder 101b.

The mounting rail 101c according to the present embodiment is formed in a continuous spiral shape along the inner circumferential surface from one end to the other end of the inner cylinder 101b, and is recessed by a predetermined depth, and the second plate 120 ) The lower side (Lb) of the sliding position can be mounted in a changeable structure.

At this time, the first damping rail 101d formed at one end of the mounting rail 101c can be mounted in a structure capable of changing the sliding position of the lower side Lb of the first plate 110 within a predetermined length range. there is. In addition, the second damping rail 101e formed at the other end of the mounting rail 101c can be mounted in a structure capable of changing the sliding position of the lower side Lb of the second plate 120 within a predetermined length range. there is.

In this case, according to the present embodiment, when the object conveyed by the screw wing for a large screw conveyor is in a high-temperature state, the positions of the first plate 110 and the second plate 120 forming structures at both ends of the screw wing structure is naturally changeable in the outward direction on both sides, so that the length deformation of the third plate 130, which thermally expands in direct contact with the high-temperature carrier, is reduced in the first plate 110 and the second plate 120 located on both sides. It is possible to provide a screw wing for a large screw conveyor that can guarantee stable operation even in a high temperature environment by preventing the entire deformation of the screw wing structure in advance.

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it should be understood that the present invention is not limited to the particular forms mentioned in the detailed description, but rather it is understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims. It should be.

That is, the present invention is not limited to the specific embodiments and descriptions described above, and anyone having ordinary knowledge in the technical field to which the present invention belongs can make various modifications without departing from the gist of the present invention claimed in the claims. is possible, and such variations fall within the protection scope of the present invention.

100: screw wing for large screw conveyor
101: cylinder structure
101a: outer cylinder
101b: inner cylinder
101c: mounting rail
101d: first damping rail
101e: second damping rail
101f: thermal insulation layer
102: one screw wing
110: first plate
111: first binding tool
120: second plate
121: second binding tool
130: third plate
131: 3rd binding sphere
140: binding member
150: bending line
151: first line (bending line forming a convex bending structure)
152: second line (bending line forming a concave bending structure)
Lu: upper edge
Lb: lower edge
Ls: side
Ls1: left side
Ls2: right side

Claims (5)

A screw wing for a large screw conveyor that is mounted on the inner circumferential surface of the hollow cylinder structure 101 and rotates together with the cylinder structure 101 to transfer a conveyance object entering from one side of the cylinder structure 101 to the other side,
The first arc formed by the first radius is the upper edge (Lu), the second arc formed by the second radius concentric with the first radius is the lower edge (Lb), and the center of the first radius is It is a plate-like structure that forms the side (Ls) by passing straight lines, and forms a plurality of bending structures by a plurality of bending lines (150) connecting the upper side (Lu) and the lower side (Lb), of the cylinder structure (101). A first plate 110 mounted adjacent to one side;
The first arc formed by the first radius is the upper edge (Lu), the second arc formed by the second radius concentric with the first radius is the lower edge (Lb), and the center of the first radius is It is a plate-like structure that forms the side (Ls) by passing straight lines, and forms a plurality of bending structures by a plurality of bending lines (150) connecting the upper side (Lu) and the lower side (Lb), of the cylinder structure (101). A second plate 120 mounted adjacent to the other side;
After being bound to the side (Ls) of the first plate 110, a number of them are continuously bound in a spiral shape along the inner circumferential surface of the cylinder structure 101 and bound to the sidewall of the second plate 120, and by the first radius The first arc formed is the upper edge (Lu), the second arc formed by the second radius concentric with the first radius is the lower edge (Lb), and the side edge is formed by a straight line passing through the center of the first radius. A third plate 130 having a plate-like structure forming Ls and forming a plurality of bending structures by a plurality of bending lines 150 connecting the upper side Lu and the lower side Lb; and
A binding member 140 mounted adjacent to the side Ls of the third plate 130 to bind the first plate 110 and the second plate 120 and to bind the plurality of third plates 130 to each other ;
A screw wing for a large screw conveyor comprising a.
According to claim 1,
The cylinder structure 101,
An outer cylinder 101a forming an outer circumferential surface of the cylinder structure 101 and rotating by receiving a rotational driving force provided from the outside;
an inner cylinder (101b) mounted on an inner circumferential surface of the outer cylinder (101a) as an integral structure, driven to rotate together with the outer cylinder (101a), and formed with a hollow structure capable of transporting an object;
The inner cylinder 101b is formed in a continuous spiral shape along the inner circumferential surface from one end to the other end of the inner cylinder 101b, and is recessed by a predetermined depth. Mounting rail (101c) to be mounted as;
A first damping rail (101d) formed at one end of the mounting rail (101c) and mounting the lower side (Lb) of the first plate (110) in a sliding position changeable structure within a predetermined length range;
A second damping rail (101e) formed at the other end of the mounting rail (101c) and mounting the lower side (Lb) of the second plate (120) in a sliding position changeable structure within a predetermined length range; and
a thermal barrier layer 101f interposed between the outer cylinder 101a and the inner cylinder 101b and made of a thermal barrier material;
A screw wing for a large screw conveyor comprising a.
According to claim 1,
The bending line 150,
A first line 151 formed in a straight line in a direction parallel to the left side Ls1 among the side sides Ls, formed in plurality at a predetermined interval, and bent to form a convex bending structure; and
It is formed in a straight line in a direction parallel to the right side (Ls2) of the side (Ls), disposed to cross the upper and lower ends of the two adjacent first lines (151) at the same time, and is bent to form a concave bending structure. a second line 152;
A screw wing for a large screw conveyor comprising a.
According to claim 3,
The screw wing for the large screw conveyor,
A plurality is formed at a predetermined interval between the first line 151 and the second line 152 adjacent to the side Ls of the first plate 110, and the third binding member of the third plate 130 ( 131) and the first binding sphere 111 bound by the binding member 140;
A plurality is formed at a predetermined interval between the first line 151 and the second line 152 adjacent to the side Ls of the second plate 120, and the third binding member of the third plate 130 ( 131) and the second binding sphere 121 bound by the binding member 140;
a plurality of third binding members 131 spaced apart from each other by a predetermined interval between the first and second lines 151 and 152 adjacent to both sides Ls of the third plate 130;
A screw wing for a large screw conveyor comprising a.
According to claim 1,
The screw wing for the large screw conveyor,
The first plate 110, the second plate 120, and the third plate 130 are bound in an integral structure to form one screw wing extending from one end to the other end of the cylinder structure 101,
The first plate 110 is spaced apart by a predetermined angle along the inner circumferential surface of one end of the cylinder structure 101 and mounted in plurality,
The second plate 120 is spaced apart by a predetermined interval along the inner circumferential surface of the other end of the cylinder structure 101 and mounted in plurality,
A screw wing for a large screw conveyor, characterized in that the single screw wing is mounted at a predetermined interval along the inner circumferential surface of the cylinder structure (101).

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