Vibrating screen device

Abstract

To provide a vibration sieve device having durability and capable of easily performing replacement work of a net body.SOLUTION: An opening 31 is formed for attaching and detaching a clamping bolt 4 to a clamping bar 3. A seat member 32 including a seating face 32c of the clamping bolt 4 at a position retreated from the opening 31 is arranged in a back surface side of the opening 31. By fixing the seat member 32 to a frame 11 by the clamping bolt 4, the clamping bar 3 is fixed to the frame 11.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vibrating sieve device. [Background technology]

[0002] Vibrating sieve devices are used to separate materials by particle size for a wide range of applications, including soil and sand, aggregates, rubble, incineration ash, mixed construction waste, and waste recycling.

[0003] The vibrating sieve device is used with a mesh body with opening dimensions appropriate for the purpose, but because the materials to be processed are heavy and the processing volume is large, it is important that the mesh body is attached with an appropriate tension.

[0004] In addition, the processing volume of material can sometimes reach several tons to several tens of tons per hour. In such cases, a large vibrating sieve device is used, and the weight of the mesh body is also large, so it is desirable for the structure to allow for easy replacement of the mesh body.

[0005] Incidentally, conventionally widely used vibrating sieve devices have a structure in which a clamping bar is engaged with the hook portion of the mesh body, the clamping bar is fixed to the frame with a clamping bolt, and the underside of the mesh body is supported on the frame via a cushioning material to attach the mesh body (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2020-65948 Summary of the Invention [Problem to be solved by the invention]

[0007] However, the above-mentioned conventional vibrating sieve device has the following problems. The round-head bolts used for clamping bolts are prone to wear and have poor durability because the round head is exposed on the surface of the clamping bar and comes into direct contact with the material being processed. The vibrating sieve device sifts materials as they are transported, but in order to prevent obstacles in the direction of the material flow, special round-headed clamping bolts are used, which can be difficult to obtain if the bolts are damaged or lost. When the clamping bar is installed, the top surface is horizontal, which makes it easy for processed materials to accumulate in that area, making cleaning difficult when replacing the mesh. In the case of a vibrating sieve device with two or more screens, the lower screen cannot be replaced without first removing the screen above it. The mesh is heavy, so when replacing it, it is desirable to place it on the device and slide it around, but the cushioning material that supports the mesh is made of rubber, so it does not slide easily due to friction, and there is also concern that applying excessive force could damage or weaken the parts.

[0008] SUMMARY OF THE INVENTION An object of the present invention is to provide a vibrating sieve device which is durable and allows for easy replacement of the mesh body by solving the problems of the conventional vibrating sieve device. [Means for solving the problem]

[0009] In order to achieve the above object, the vibrating sieve device of the present invention has a clamping bar engaged with a hook portion of a mesh body, the clamping bar being fixed to a frame by a clamping bolt, and the underside of the mesh body being supported on the frame via a cushioning material, so that the mesh body is attached. In this vibrating sieve device, an opening for attaching and detaching a clamping bolt is formed in the clamping bar, and a seat member having a seat surface for the clamping bolt is disposed on the back side of the opening at a position set back from the opening, and the seat member is fixed to the frame by the clamping bolt, thereby fixing the clamping bar to the frame.

[0010] In this case, the cross-sectional shape of the clamping bar can be formed into a J-shape with one end bent, and the bent portion on one end can be engaged with the hook portion of the mesh body, and the clamping bar can be attached so that the straight portion forms an upwardly inclined surface.

[0011] Furthermore, the clamping bolt may be a hexagonal bolt, and the seat member may be formed so that rotation of the hexagonal bolt is restricted when the hexagonal bolt is inserted into the bolt insertion hole of the seat member.

[0012] Furthermore, an inspection window for attaching and detaching the clamping bolt can be formed in the frame that fixes the clamping bar.

[0013] Furthermore, in order to achieve the same object, the vibrating sieve device of the present invention is configured so that a clamping bar is engaged with the hook portion of the mesh body, the clamping bar is fixed to the frame with a clamping bolt, and the underside of the mesh body is supported on the frame via a cushioning material, and the mesh body is attached to the vibrating sieve device, and is characterized in that a metal liner member is attached to the cushioning material, so that the mesh body and the cushioning material do not come into direct contact with each other.

[0014] In this case, the cross-sectional shape of the liner member can be formed into an arc shape with a central angle of 180° or more. [Effects of the Invention]

[0015] According to the vibrating sieve device of the present invention, it is possible to provide a vibrating sieve device that is durable and allows for easy replacement of the mesh body by solving the problems of conventional vibrating sieve devices. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is an external view showing an embodiment of a vibrating sieve device according to the present invention; [Figure 2]2A and 2B are explanatory views of the vibrating sieve device during replacement of the mesh body, where (a) is a cross-sectional view taken along line AA in FIG. 1, and (b) is a cross-sectional view taken along line BB in (a). [Figure 3] 1 shows the clamping bar of the vibrating sieve device, where (a) is a front view, (b) is a side view, (c) is an exploded view of the clamping bar body, (d) is a three-view view of the first component of the seat member, and (e) is an exploded view of the second component of the seat member. [Figure 4] 1A and 1B show a liner member of a cushion material of the vibrating sieve device, in which (a1) and (a2) are cross-sectional views, (b) is a perspective view, and (c) is an explanatory view showing the state where it is attached to the cushion material. DETAILED DESCRIPTION OF THE INVENTION

[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a vibrating sieve device according to the present invention will be described with reference to the drawings.

[0018] 1 to 4 show an embodiment of a vibrating sieve device according to the present invention. In this vibrating sieve device 1, a clamping bar 3 is engaged with the hook portion 21 of the lower mesh body 2, and the clamping bar 3 is fixed to a frame 11 with a clamping bolt 4, and the underside of the mesh body 2 is supported on a frame 12 via a cushioning material 5, thereby attaching the mesh body 2. Here, the upper mesh body 2 of the vibrating sieve device 1 uses the mounting structure of the mesh body of a conventional vibrating sieve device, and the clamping bar 3' is engaged with the hook portion 21 of the upper mesh body 2, and the clamping The bar 3' is fixed to the frame 11 with a clamping bolt (round head bolt) 4', and the underside of the mesh body 2 is supported on the frame 12 via cushioning material 5, thereby attaching the mesh body 2. However, the attachment structure of the lower mesh body 2 can also be used for the upper mesh body 2 (or the mesh body of a vibrating sieve device having one mesh body or three or more mesh bodies), or the attachment structure of the lower mesh body 2 can be used for the upper mesh body 2, and the attachment structure of a conventional vibrating sieve device mesh can be used for the lower mesh body 2.

[0019] The mounting structure of the lower mesh body 2 in the vibrating sieve device of the present invention has an opening 31 formed in the clamping bar 3 for attaching and detaching the clamping bolt 4, and a seat member 32 having a seat surface 32c for the clamping bolt 4 is arranged on the back side of the opening 31 at a position set back from the opening 31, and the seat member 32 is fixed to the frame 11 by the clamping bolt 4, thereby fixing the clamping bar 3 to the frame 11. Here, the clamping bar 3 is made of iron or stainless steel, and abrasion-resistant steel plate or stainless steel having wear resistance can be suitably used. The seat member 32 is made up of a first component 32a that forms the peripheral wall portion of the seat member 32 and a second component 32b that forms the seat surface 32c and bottom wall portion of the clamping bolt 4, and is integrated with the clamping bar 3 by welding to form a recess in which the head of the clamping bolt 4 is accommodated. As a result, the head of the clamping bolt 4 is not exposed on the surface of the clamping bar 3 and does not come into direct contact with the material to be treated, and the head of the clamping bolt 4 is protected by the material to be treated that has entered the recess formed by the seat member 32 and in which the head of the clamping bolt 4 is housed (this material can be easily removed), preventing wear and improving durability. Note that an appropriate cap member for closing the recess can also be provided in the recess.

[0020] The cross-sectional shape of the clamping bar 3 is formed into a J-shape with one end bent, and the bent portion 30b on one end is engaged with the hook portion 21 of the mesh body 2, and the clamping bar 3 is attached so that the straight portion 30a forms an upward inclined surface. This eliminates the need for a horizontal upper surface like the clamping bar 3', minimizing the accumulation of materials to be treated and reducing the cleaning burden when replacing the mesh body 2.

[0021] A general-purpose hex bolt is used for the clamping bolt 4, and the seat member 32 is formed so that the side of the head of the hex bolt comes into contact with the bottom surface of the seat member 32 when the hex bolt is inserted into the bolt insertion hole 32d formed in the seat surface 32c of the seat member 32, thereby restricting rotation of the hex bolt. The general-purpose hex bolts used for the clamping bolts 4 are easily available in case of damage or loss of the bolts. Furthermore, by restricting the rotation of the hex bolts, it is possible to tighten the nuts that thread onto the hex bolts using a tool from outside the vibrating sieve device 1, which reduces the workload when replacing the mesh body 2.

[0022] The frame 11 that fixes the clamping bar 3 is formed with an inspection window 13 through which an operator can insert their hand when attaching or detaching the clamping bolt 4. The inspection window 13 is closed with a lid member 14 when the vibrating sieve device 1 is in use. As a result, in the case of a vibrating sieve device having two or more tiers of mesh bodies, previously it was not possible to replace the lower tier of mesh body 2 without removing the mesh body 2 above it, but by forming an inspection window 13, it is now possible to replace the lower tier of mesh body 2 (inserting and removing the lower tier of mesh body 2 and tensioning the mesh body 2) from outside the vibrating sieve device 1 without removing the upper tier of mesh body 2, thereby shortening the work time.

[0023] A metal liner member 51 is attached to the cushion material 5, and the mesh body 2 and the cushion material 5 are The structure should be such that there is no direct contact. Here, the liner member 51 is made of iron or stainless steel, and a stainless steel liner having wear resistance can be suitably used. Furthermore, it is preferable that the cross-sectional shape of the liner member 51 be formed into an arc shape (by splitting the pipe member) with a central angle θ of 180° (see Figure 4(a2)) or more, for example, about 120° (see Figure 4(a1)), so that it can accommodate deformation of the rubber cushioning material 5. This allows the mesh body 2 to slide over the liner member 51, improving the workability when replacing the mesh body 2. Furthermore, even when the liner member 51 is provided, the deformability of the rubber cushion material 5 is not impaired, so it can accommodate the large amplitude and vibration frequency of the vibrating sieve device 1, and since the mesh body 2 and the cushion material 5 do not come into direct contact with each other, wear and settling of the rubber cushion material 5 can be reduced. By forming the cross-sectional shape of the liner member 51 into an arc shape with a central angle θ greater than 180°, the liner member 51 can be fitted into the cushion material 5 without using adhesives, etc., thereby reducing the labor required for assembly and disassembly. Furthermore, it is possible to replace only the liner member 51 or the rubber cushion material 5, reducing the cost of consumables.

[0024] The vibrating sieve device of the present invention has been described above based on its embodiments, but the present invention is not limited to the configurations described in the above embodiments, and the configuration can be changed as appropriate within the scope of the invention. [Industrial Applicability]

[0025] The vibrating sieve device of the present invention eliminates the problems of conventional vibrating sieve devices, is durable, and allows the mesh body to be easily replaced, so it can be widely applied to vibrating sieve devices, both existing and new. [Explanation of symbols]

[0026] 1 Vibrating sieve device 11 frames 12 frames 13 Inspection window 14 Lid member 3 Clamping Bar 30a Straight section 30b Bent part 31 Opening 32 Seat member 32a First component 32b Second component 32c seat 32d Bolt insertion hole 3' Clamping Bar 4 Clamping bolts (hexagon bolts) 4" Clamping bolt (round head bolt) 5. Cushioning material 51 Liner material

Claims

1. A vibrating sieve device in which a mesh body is attached by engaging a clamping bar with a hook portion of the mesh body, fixing the clamping bar to a frame with a clamping bolt, and supporting the underside of the mesh body on the frame via a cushioning material, An opening for attaching and detaching a clamping bolt is formed in the clamping bar, and a seat member having a seat surface for the clamping bolt is disposed on the rear side of the opening at a position set back from the opening, and the seat member is fixed to the frame by the clamping bolt, thereby fixing the clamping bar to the frame; A metal liner member is attached to the cushion material, so that the mesh body and the cushion material do not come into direct contact with each other. A vibrating sieve device characterized by the above.

2. 2. The vibrating sieve device according to claim 1, wherein the cross section of the liner member is formed into an arc shape with a central angle of 180 degrees or more.

3. 3. The vibrating sieve device according to claim 1, wherein the cross-sectional shape of the clamping bar is formed into a J-shape with one end bent, the bent portion on one end is engaged with the hook portion of the mesh body, and the clamping bar is attached so that the straight portion forms an upwardly inclined surface.

4. 3. The vibrating sieve device according to claim 1, wherein the clamping bolt is a hexagonal bolt, and the seat member is formed so that rotation of the hexagonal bolt is restricted when the hexagonal bolt is inserted into the bolt insertion hole of the seat member.

5. 3. The vibrating sieve device according to claim 1, wherein an inspection window for attaching and detaching the clamping bolt is formed in a frame for fixing the clamping bar.

Images