JP3159665U - Belt conveyor fence mounting structure - Google Patents

Abstract

The present invention provides a fence mounting structure that allows a fence to be easily and securely installed even in a complicated appearance where a hook portion cannot be provided around a belt conveyor. A fence mounting structure 16 includes a main body portion 17, a first face plate 28 attached to and detached from the main body portion 17, and a wedge member 31. The main body portion 17 includes an attachment portion 18 that is fixed to the machine frame by bolts 26, a second face plate 19 that is integral with the attachment portion 18, and a protruding portion 21 that protrudes from the second face plate 19. The first face plate 28 can move in the direction of approaching or moving away from the second face plate 19 of the main body portion 17 along the protruding portion 21 through the first opening 29. The protrusion 21 can pass through the mesh space 14 of the safety fence 11 and has a second opening 22. The wedge member 31 presses the first face plate 28 toward the second face plate 19 while being inserted into the second opening 22 of the protruding portion 21. Wires 33 a and 33 b are connected to the first face plate 28 and the wedge member 31, and these wires are connected to the safety fence 11. [Selection] Figure 4

Description

  The present invention relates to a fence mounting structure that is employed when a safety fence is installed around a belt conveyor supported by a machine frame such as a frame, a support column, and a reinforcing member.

  A conveying device provided with a belt conveyor is widely used in industry as a conveying means for conveying an arbitrary object. This conveying device includes movable parts such as a belt conveyor itself, a roller that rotates the belt conveyor, a driving source such as an electric motor, a power transmission system such as a gear, and the like.

  In order to prevent the worker from coming into contact with these movable parts, it is conventionally known to provide a fence around the transfer device (see, for example, Patent Document 1). Patent Document 1 discloses a configuration in which a hook portion is provided on a part of a machine frame that supports a belt conveyor, and a fence made of a wire mesh is hooked on the hook portion.

  Patent Document 2 discloses a configuration in which a hook portion is provided on a part of a machine frame that supports the belt conveyor, and a fence made of a metal mesh is hooked on the hook portion and suspended. In Patent Document 3, a hook portion is provided on a part of a machine frame that supports the belt conveyor, and a fence made of a metal mesh is hung on the hook portion to be hung, and a fence is formed by a locking ring and a cotter. The structure of fixing to a frame is disclosed.

Utility Model Registration No. 3151281 (Claim 1, page 5, FIGS. 1, 2 and 3) JP 2008-156069 A (Claim 1, pages 4, 5 and FIGS. 1, 3 and 4) JP 2009-173389 A (Claim 1, page 5, FIGS. 1, 2 and 3)

  However, in the devices disclosed in Patent Document 1, Patent Document 2 and Patent Document 3, since the hook portion is provided on the machine frame of the belt conveyor and the fence is suspended from the hook portion, the fence is unstable. It is not possible to attach a fence to a place where the hook part cannot be provided, it is troublesome to hang the fence on the hook part, and it is troublesome, or a large load is applied to the hook part. There was a problem that it was easily damaged.

  The present invention is made to solve the above-mentioned problems in the conventional apparatus, and can be installed in a place having a complicated external shape such that a hook portion cannot be provided. It is an object of the present invention to provide a fence device having a sturdy structure that can be installed in a stable and stable state only by work and is not easily damaged.

  A fence mounting structure for a belt conveyor according to the present invention is a fence mounting structure for installing a net-like safety fence around a belt conveyor supported by a machine frame, and a main body unit mounted on the machine frame, A first face plate that is attached to and detached from the main body; and a wedge member that presses the first face plate; and the main body is fixed to the machine frame by a fixing unit; And a second face plate provided with a contact surface that can come into contact with the safety fence in a plane, and a protruding portion protruding from the contact face of the second face plate, wherein the first face plate is the safety fence. A contact surface that can contact the surface of the main body, and has a first opening through which the protrusion can pass, and moves in a direction toward or away from the second face plate of the main body along the protrusion. And the protrusion passes through the mesh space of the safety fence. The second face plate has a second opening extending in a direction intersecting the contact surface of the second face plate, and the wedge member is inserted into the second opening of the protruding portion and the first face plate is moved to the first face plate. A connecting wire member is connected to the first face plate and / or the wedge member, and the connecting wire member is provided with a connector that can be connected to the safety fence. And

  In the above configuration, the face plate is a plate-like member having a portion that makes surface contact with the safety fence.

  In the belt conveyor fence mounting structure according to the present invention, each of the face of the first face plate facing the safety fence and the face of the second face plate facing the fence is more than one mesh space of the safety fence. It is desirable to have a large area. Thereby, the wire part of a safety fence can be firmly clamped by the 1st face plate and the 2nd face plate.

  According to the belt conveyor fence mounting structure according to the present invention, it is not a hanging structure using a hook part, but a structure that supports a safety fence with a pair of face plates, and therefore a hook part cannot be provided. Fences can be installed even in places with complicated external shapes.

  Further, in the structure using the hook portion, the fence itself is only suspended, so that the fence itself can freely swing around the hook portion, and therefore the fence cannot be stably and firmly installed. For example, when the wind is strong, the fence swings and an excessive load is applied to the suspended part, and the hook part and the fence are easily damaged. In contrast, in the present invention, the safety fence is supported by the pair of face plates, so that the safety fence can be stably and firmly supported, and the fence itself and the support portion of the fence are hardly damaged.

  In addition, in the hanging structure using the hook portion, another structure using a locking ring and a locking member inserted into the locking ring is necessary to ensure the stability of the fence. For this reason, two operations, a hanging operation and a locking operation, are required, and the operation is very troublesome. In addition, two structures had to be prepared and the cost was high. In contrast, according to the present invention, since the safety fence can be reliably supported by only a pair of face plates, the work of installing the fence is easy and the cost can be kept low.

  The length of the belt conveyor where the fence should be installed can be very long. For example, in an ore transport system in a mine, a belt conveyor may be several tens of meters to several hundreds of meters. In such a case, it is particularly advantageous to use the fence mounting structure of the present invention in order to make work easier and to keep costs low.

  According to the present invention, the connecting wire member is connected to the wedge member and the first face plate, and the connecting wire member is attached to the connecting wire member to be connected to the wire material of the net-like safety fence. Loss of the wedge member and the first face plate can be avoided by connecting the connecting wire member to the wire of the safety fence.

(A) is a figure which shows the conveying apparatus using a belt conveyor, (b) is a figure which shows the state which attached the safety fence to the conveying apparatus by one Embodiment of the fence attachment structure which concerns on this invention. It is sectional drawing of the belt conveyor conveying apparatus according to the BB line of FIG.1 (b). It is a front view which expands and shows the principal part of the fence attachment structure of a belt conveyor. It is a disassembled perspective view of one Embodiment of the fence attachment structure of the belt conveyor which concerns on this invention. It is a side view which shows the state which assembled the fence attachment structure of the belt conveyor shown in FIG. It is sectional drawing of the belt conveyor conveyance apparatus using other embodiment of the fence attachment structure of the belt conveyor which concerns on this invention. (A) is a figure which shows the other example of the conveying apparatus using a belt conveyor, (b) is the state which attached the safety fence by other embodiment of the fence mounting structure which concerns on this invention to the conveying apparatus. FIG.

(First embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, a belt conveyor fence mounting structure according to the present invention will be described based on embodiments. Of course, the present invention is not limited to this embodiment. In the following description, the drawings are referred to. In the drawings, the components may be shown in different ratios from the actual ones in order to show the characteristic parts in an easily understandable manner.

  FIG. 1 (a) shows a state in which the entire belt conveyor transport apparatus using the belt conveyor fence mounting structure according to the present invention is viewed from the side in the transport direction A. FIG. Moreover, FIG.1 (b) has shown the state which attached the fence using one Embodiment of the fence attachment structure of the belt conveyor which concerns on this invention to the belt conveyor conveyance apparatus.

  As shown in FIG. 1 (a), the belt conveyor transport device is a machine frame that supports a belt conveyor 3 supported by a driving roller 1 and a driven roller 2, and a driving roller 1 and other various structural members. 4 and a cover 6 covering the carrier side (ie, upper side) portion 3 a of the belt conveyor 3. This belt conveyor conveyance device is used for conveying ore produced in a mine, for example. In this case, the belt conveyor 3 may be installed over a very long distance such as several tens of meters to several hundreds of meters.

  An object to be conveyed, for example, ore, rides on the carrier side portion 3a of the belt conveyor 3 and is conveyed in the direction indicated by the arrow A. After the conveyance, the belt conveyor 3 bypasses the drive roller 1 and becomes the lower traveling side, and returns to the original position where the conveyance object is received. Such a lower side portion 3b of the belt conveyor 3 may be referred to as a return side portion.

  In FIG. 2, which is a cross-sectional view according to the line BB in FIG. 1B, the carrier side portion 3 a that is the upper traveling body of the belt conveyor 3 includes a central horizontal roller 5 and inclinations provided on both sides thereof. It is received by the rollers 10 and 10 and travels in a direction from the back side of the page of FIG. 2 toward the front side of the page. On the other hand, the return side portion 3b, which is the lower traveling body of the belt conveyor 3, is received by the horizontal roller 15 and travels in the direction from the front side of the page of FIG. A plurality of horizontal rollers 5 and inclined rollers 10 and 10 on the carrier side and horizontal rollers 15 on the return side are provided at intervals from each other in a direction orthogonal to the paper surface of FIG. Each inclined roller 10 is supported by a column 20 fixed on a conveyor frame 8 which is a machine frame. The support column 20 is also one of the machine frames.

  In FIG. 1A, a machine frame 4 includes a base frame 7 placed on a reference surface such as the ground, and a conveyor frame 8 installed above the base frame 7 and supporting the belt conveyor 3. And a vertical frame 9, which is a support provided between the base frame 7 and the conveyor frame 8. A part of the lower side of the driving roller 1, a part of the lower side of the driven roller 2, and a return side (downward running side) part 3 b of the belt conveyor 3 are housed in a space surrounded by the machine frame 4.

  As shown in FIG. 1B, a plurality of safety fences 11, which are rectangular net members, are continuously arranged on the side surface of the machine frame 4 without substantial gaps. In FIG. 1 (b), the safety fence 11 provided on the front side surface of the machine casing 4 is shown, but as shown in FIG. 2, the rear side surface (left side surface in FIG. 2) of the machine casing 4 is also shown. A plurality of similar safety fences 11 are provided.

  As shown in FIG. 3, the safety fence 11 extends a plurality of thin wires 13 inside both the vertical and horizontal sides of a rectangular and ring-shaped (that is, annular or frame-shaped) relatively thick wire 12. It is formed by. The annular wire 12 and the vertical and horizontal wires 13 inside thereof are wires constituting a safety fence 11 that is a net member. A rectangular opening region surrounded by the annular wire 12 and the vertical and horizontal wires 13 adjacent thereto, that is, one by one of the mesh space 14, and a rectangular shape surrounded by the wires 13 adjacent to each other in the vertical and horizontal directions. Each open area, that is, each of the mesh spaces 14 constitutes a mounting hole for inserting a protruding portion of the main body described later. A plurality of mesh spaces 14 are arranged in rows and columns in the vertical and horizontal directions. The wire 12 and the wire 13 are metal or resin wires.

  The vertical frame 9 is formed in a U-shaped cross section in which upright portions 9b and 9b are formed on both sides of the substrate portion 9a. The safety fence 11 is supported by a fence attachment structure 16 attached to the upright portion 9 b of the vertical frame 9. As shown in FIG. 4, the fence mounting structure 16 has a main body portion 17. The main body portion 17 protrudes from the second face plate 19, an attachment portion 18 for being fixedly attached to one standing portion 9 b of the vertical frame 9 (see FIG. 3), a second face plate 19 integral with the attachment portion 18, and the second face plate 19. Projecting portion 21. The protrusion 21 has a rectangular or square rectangular plate shape, and its width W is such that it can pass through the mesh space 14 provided in the safety fence 11. Further, a substantially central portion of the protruding portion 21 is provided with a second opening 22 that is a long hole extending in a direction substantially perpendicular to the second face plate 19, that is, extending in a direction intersecting the second face plate 19.

  A groove 23 is provided in the central portion of the attachment portion 18. A screw hole 24 is provided in the side wall of the mounting portion 18 forming the groove 23. Bolts 26 are screwed into the screw holes 24. Reference numerals 27 a and 27 b are nuts for fixing the bolts 26. The main body 17 can be fixed to the vertical frame 9 by inserting the upright portion 9 b of the vertical frame 9 into the groove 23 and then tightening the bolt 26.

  In this embodiment, the double nuts 27a and 27b are used to prevent the bolts 26 from loosening, but instead, a single nut structure using one nut may be employed.

  The fence mounting structure 16 further includes a first face plate 28. The first face plate 28 is formed in substantially the same shape as the second face plate 19 that is a component of the main body portion 17. Further, a substantially central portion of the first face plate 28 is a long hole having a width larger than the thickness of the protruding portion 21 that is a component of the main body portion 17 and a length larger than the width W of the protruding portion 21. A first opening 29 is provided.

  A small hole 30 is provided at an appropriate position of the first face plate 28, in the case of the present embodiment, at a substantially central portion of one side portion. Then, one end of a wire 33 a as a connecting wire member is connected to the small hole 30. The wire 33a is made of metal, resin, or thread. A connecting tool, for example, a metal or resin S-shaped hooking member 34a is attached to the other end of the wire 33a. The hooking member 34a can be hooked on the wire rods 12 and 13 as mesh wires. By hooking the hooking member 34a on the wires 12 and 13, it is possible to prevent the first face plate 28 from being lost after the first face plate 28 is removed from the main body portion 17.

  The protruding portion 21 which is a component of the main body portion 17 can penetrate the mesh space 14 which is a mounting hole of the safety fence 11. The second face plate 19 can be brought into surface contact with the thin and long wire rods 13 of the safety fence 11 or the wire rod 12 of the ring-shaped outer frame. When the second face plate 19 is in surface contact with the wire 12 or 13, the first face plate 28 is inserted into the protruding portion 21, and the first face plate 28 is inserted from the opposite side of the second face plate 19 with the wire 12 or If it is in surface contact with 13, the safety fence 11 can be sandwiched between the first face plate 28 and the second face plate 19.

  The planar shape of the first face plate 28 and the second face plate 19 may be smaller than the area of one mesh space 14, but is desirably larger than the opening area of one mesh space 14. In this way, the entire circumference of the ring-shaped wire 12 forming one mesh space 14 or the internal linear wire 13 can be sandwiched between the first face plate 28 and the second face plate 19.

  The fence mounting structure 16 further includes a wedge member 31. One side 31a on the lower side of the wedge member 31 has a short length, and the opposite side 31b has a longer length. That is, the overall shape of the wedge member 31 is a wedge shape. The long side 31c of the wedge member 31 and the upper long side 31b form a substantially right angle. The other side 31d on the long side and the upper long side 31b are smaller than a right angle, that is, an acute angle.

  The length of the upper long side 31b is such that the first face plate in the second opening 22 of the projecting portion 21 when both the first face plate 28 and the second face plate 19 are brought into surface contact with the wire 12 or 13. It is formed longer than the length of the portion projecting outside 28. For this reason, when both the first face plate 28 and the second face plate 19 are in surface contact with the wire 12 or 13, if the wedge member 31 is inserted into the second opening 22 of the protruding portion 21 from the short side 31a side, The wedge member 31 stops midway without penetrating the second opening 22 and presses the first face plate 28 toward the second face plate 19. Thereby, the wire rods 12 and 13, that is, the safety fence 11 can be firmly sandwiched and supported by the first face plate 28 and the second face plate 19.

  A small hole 32 is provided in the upper end portion of the wedge member 31. One end of a wire 33b as a connecting wire member is connected to the small hole 32. The wire 33b is made of metal, resin, or thread. Then, a connecting tool, for example, a metal or resin made S-shaped hooking member 34b is attached to the other end of the wire 33b. The hooking member 34b can be hooked on the wire rods 12 and 13 as mesh wires. By hooking the hooking member 34b on the wire rods 12 and 13, the wedge member 31 can be prevented from being lost after the wedge member 31 is removed from the main body portion 17.

  Since the belt attachment structure 16 of the belt conveyor according to the present embodiment is configured as described above, when the safety fence 11 is attached to the belt conveyor transport apparatus using this structure, first, the fence attachment structure of FIG. As shown in FIG. 5A, the mounting portion 18 of the 16 main body portions 17 is fixed to the upright portion 9b of the vertical frame 9 by bolts 26 and nuts 27a and 27b. Next, in FIG. 4, the mesh space 14 of the safety fence 11 that is a mesh member is inserted into the protruding portion 21 of the main body portion 17, and the wire 12 or 13 is brought into surface contact with the second face plate 19. When the planar shape of the second face plate 19 is larger than the opening area of one mesh space 14, the entire circumference of the wire 12 or 13 forming one mesh space 14 is brought into surface contact with the second face plate 19. Can do.

  Next, the first opening 29 of the first face plate 28 is inserted into the protruding portion 21 of the main body portion 17, and the first face plate 28 is pressed against the wire 12 or 13. Further, as shown in FIG. 5, the wedge member 31 is inserted into the second opening 22 of the protruding portion 21 of the main body portion 17. Then, the first face plate 28 is pressed in the direction of the second face plate 19 by the wedge member 31, so that the first face plate 28 and the second face plate 19 firmly hold the wire 12 or 13 of the safety fence 11. Thus, as shown in FIG. 1B, the plurality of safety fences 11 can be easily removed around the belt conveyor 3, particularly around the return side portion 3b of the belt conveyor 3 installed inside the machine frame 4. It can be provided continuously. Thus, the safety fence 11 can prevent the operator from touching the movable elements of the belt conveyor 3, such as rollers and motors.

(Second Embodiment)
FIG. 6 shows another embodiment of the usage pattern of the belt conveyor fence mounting structure according to the present invention. The belt conveyor transport apparatus used in this embodiment is different from the belt conveyor transport apparatus of FIG. 2 in that the cover 6 that covers the carrier side portion 3a of the belt conveyor 3 is not provided. The other configuration is the same as that of the belt conveyor transport apparatus of FIG.

  In this embodiment, the carrier side portion 3a of the belt conveyor 3 is exposed to the outside. And the fence attachment structure 16 is being fixed to the proper position of the support | pillar 20 as a machine frame which supports the inclination roller 10, and the safety fence 11a which is a net | network member is supported by the fence attachment structure 16. FIG. The safety fence 11a covers the side portion of the carrier side portion 3a of the belt conveyor 3 from the outside. A plurality of safety fences 11a are provided side by side along the direction perpendicular to the paper surface of FIG.

  As described above, in this embodiment, the side of the carrier side portion 3a of the belt conveyor 3 is covered with the safety fence 11a, and the side of the return side portion 3b of the belt conveyor 3 is covered with the safety fence 11. Yes. With this configuration, the safety fences 11 and 11a can prevent an operator from accidentally touching a movable part (for example, a roller, a motor, a pulley, a gear, or a power transmission belt) attached to the belt conveyor 3.

  The fence attachment structure 16 has the same configuration as the fence attachment structure 16 shown in FIGS. 4 and 5. Since the structure of the fence mounting structure 16 has already been described, description thereof is omitted here.

(Third embodiment)
FIG.7 (b) has shown further another embodiment of the usage pattern of the fence mounting structure of the belt conveyor which concerns on this invention. Fig.7 (a) has shown the whole belt conveyor conveying apparatus of the state which removed the safety fence 11 and the fence attachment structure 16 from the apparatus of FIG.7 (b).

  7 (a) is different from the belt conveyor transport apparatus shown in FIG. 1 (a) in that the machine frame 4 in FIG. 7 (a) includes an oblique frame 25 which is a reinforcing structural element. It is that you are. The oblique frame 25 itself is formed in a U-shaped cross section having a substrate portion and an upright portion, like the vertical frame 9.

  In the belt conveyor transport apparatus shown in FIG. 1B, all of the plurality of fence mounting structures 16 are fixed to the standing portion 9b of the vertical frame 9, and the safety fence 11 as a net member is formed by these fence mounting structures 16. It is supported. On the other hand, in the belt conveyor transport apparatus according to this embodiment shown in FIG. 7B, a part of the fence mounting structure 16 is fixed to the upright portion of the oblique frame 25 instead of the vertical frame 9. One safety fence 11 is supported by the fence attachment structure 16 fixed to the vertical frame 9 and the fence attachment structure 16 fixed to the oblique frame 25. Thus, the fence mounting structure 16 can be fixed to an arbitrary machine frame.

(Other embodiments)
The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the embodiments, and various modifications can be made within the scope of the invention described in the claims.

  For example, in the above embodiment, the belt conveyor rail mounting structure according to the present invention is applied to the belt conveyor transport apparatus for ore transport used in the mine, but the belt conveyor rail mounting structure of the present invention is used for ore transport. The present invention is not limited to the belt conveyor conveyance device, and can be applied to any other belt conveyor conveyance device.

  In the above embodiment, the bolt 16 is used as means for attaching the main body portion 17 of the fence attachment structure 16 to the machine frame in FIG. 4, but any other means can be used as the attachment means. For example, an attachment structure using an elastic force such as a spring or an attachment structure using an adhesive may be used.

1. 1. driving roller; 2. driven roller; Belt conveyor, 3a. Carrier side part, 3b. 3. Return side part 4. Machine frame, Horizontal roller, 6. Cover, 7. Base frame (machine frame), 8. 8. Conveyor frame (machine frame) Vertical frame (post, machine frame), 9a. Substrate part, 9b. Standing part, 10. 10. inclined roller, Safety fence, 11a. Safety fence, 12. 12. Ring-shaped (annular) wire rod, Thin wire, 14. Mesh space, 15. Horizontal roller, 16. 16. Fence mounting structure Body part, 18. Mounting part, 19. Second face plate, 20. Strut (machine frame), 21. Protrusions, 22. Second opening, 23. Groove, 24. Screw holes, 25. 26. Oblique frame (machine frame) Bolts 27a, 27b. Nuts, 28. First face plate, 29. First opening, 30. Small holes, 31. Wedge member, 31a. Short side, 31b. Long side, 31c, 31d. The longitudinal side, 32. Small holes, 33a, 33b. Wire (line member for connection), 34a, 34b. Hook member (connector)

Claims (2)

A fence mounting structure for installing a reticulated safety fence around a belt conveyor supported by a machine frame,
A main body part attached to the machine frame, a first face plate attached to and detached from the main body part, and a wedge member that presses the first face plate;
The main body is
A mounting portion fixed to the machine frame by a fixing means;
A second face plate provided with a contact surface that is integral with the mounting portion and that can contact the safety fence in a plane;
And a protruding portion protruding from the contact surface of the second face plate,
The first face plate includes a contact surface that can contact the safety fence in a planar manner, and has a first opening through which the protruding portion can pass, and the first face plate has a first opening along the protruding portion. Can move toward or away from the two-sided plate,
The protrusion can pass through the mesh space of the safety fence, and has a second opening extending in a direction intersecting the contact surface of the second face plate,
The wedge member is pressed into the second face plate while being pushed into the second opening of the protrusion,
The belt attachment of the belt conveyor, wherein a connecting wire member is connected to the first face plate and / or the wedge member, and the connecting wire member is provided with a connecting device that can be connected to the safety fence. Construction.   The surface of the first face plate facing the fence and the face of the second face plate facing the fence each have an area larger than the mesh space of the fence. Rail conveyor rail mounting structure.

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