JP2020090333A - Conveyor support mechanism - Google Patents

Abstract

To make it possible to absorb rolling due to earthquake and prevent interference between conveyor supports at the time of earthquake occurrence in a conveyor support mechanism.SOLUTION: A conveyor support mechanism comprises: a first conveyor support girdle which supports plural conveyance rollers which support an approach route of an endless belt-like conveyance belt; a second conveyor support girdle which supports the plural conveyance rollers which support the approach route of the conveyance belt on a downstream side in a conveyance direction of the conveyance belt, and faces the first conveyor support girdle; a leg which supports the first conveyor support girdle and the second conveyor support girdle; and a bearing part comprising a slide mechanism which is inserted between the first conveyor support girdle or the second conveyor support girdle and the leg. A gap between the conveyance roller, which is positioned on the most downstream side of the first conveyor support girdle, and the conveyance roller, which is positioned on the most upstream side of the second conveyor support girdle, is wider than a gap between the conveyance rollers which are adjacent to each other in the conveyance direction of the first conveyor support girdle.SELECTED DRAWING: Figure 1

Description

The present invention relates to a conveyor support mechanism.

For example, a conveyor that conveys coal or the like in a thermal power plant is supported by a conveyor support mechanism disclosed in Patent Document 1, for example. This conveyor support mechanism is provided with a plurality of conveyor support girders arranged in a tilted posture and a plurality of legs supporting these conveyor support girders, and supports the conveyor so that it reaches from a low position to a high position. is doing. Further, each of the conveyor support mechanisms supports the conveyor support girder by, for example, a bearing having a slide mechanism in order to absorb heat contraction of the conveyor support girder.

JP, 2016-199343, A

Even if a large vibration such as an earthquake occurs, such a conveyor support mechanism should be able to maintain the conveyor's ability to convey coal etc. for stable power supply after the earthquake. Is preferred. For this reason, for example, it is conceivable that the movable range of the above-described slide mechanism is significantly increased, and the rolling mechanism absorbs the rolling caused by an earthquake.

On the other hand, usually, a plurality of conveyor rollers of the conveyor are arranged at equal intervals on the conveyor supporting girder. In other words, the conveyor supporting girders support the conveying rollers so that even in the boundary area between the conveyor supporting girders, the arrangement intervals of the conveying rollers and the other areas are the same. However, in such a case, if a slide mechanism having a large movable range as described above is used, there is a possibility that the conveyor support girders may interfere with each other when an earthquake occurs.

The present invention has been made in view of the above-described problems, and an object of the present invention is to make it possible for a conveyor support mechanism to absorb the rolling of an earthquake and to prevent interference between conveyor support girders when an earthquake occurs. And

The present invention adopts the following configurations as means for solving the above problems.

A first aspect of the present invention is a conveyor support mechanism, including a first conveyor support girder that supports a plurality of conveyor rollers that support the forward path of an endless belt-shaped conveyor belt, and the conveyor belt on the downstream side in the conveyor direction of the conveyor belt. A second conveyor support girder that faces the first conveyor support girder, supports a plurality of transport rollers that support the outward path of the first conveyor, and a leg portion that supports the first conveyor support girder and the second conveyor support girder; The conveyor roller, which comprises one conveyor supporting girder or the second conveyor supporting girder and a support portion provided with a slide mechanism interposed between the legs, and is located on the most downstream side of the first conveyor supporting girder. And a distance between the conveying roller located on the most upstream side of the second conveyor supporting girder is wider than an interval between the conveying rollers adjacent in the conveying direction of the first conveyor supporting girder.

A second aspect of the invention employs a configuration according to the first aspect of the invention, in which the support portion exerts a restoring force in the sliding direction of the slide mechanism.

3rd invention is the said 2nd invention, The said support part is the stator connected to the said leg part, The moving element connected to the said 1st conveyor support girder or the said 2nd conveyor support girder, A configuration is adopted in which one end is connected to the moving element in the moving direction of the moving element and the other end is provided with a biasing member fixed to the leg or the stator.

In a fourth aspect based on the third aspect, the legs support the conveyor supporting girder by inclining the leg so as to rise from one end to the other end of the conveyor supporting girder, and the slide mechanism. Is provided with a slide base that allows the mover to move along an inclined axis connecting one end to the other end of the conveyor support girder, and the biasing member is provided on the mover from one end of the conveyor support girder. Adopt a configuration that is connected.

In a fifth aspect based on the third or fourth aspect, one end is connected to the moving element in the moving direction of the moving element, and the other end is fixed to the leg or the stator. A configuration including a damping member is adopted.

In a sixth aspect based on any one of the second to fifth aspects, one of the one end and the other end of the conveyor support girder is connected to the leg through the bearing, and the conveyor support girder is provided. The other one of the one end and the other end is connected to the leg through a fixed bearing.

In a seventh invention according to any one of the first to sixth inventions, the conveyor belt has flexibility and is arranged between the first conveyor support girder and the second conveyor support girder. A configuration is employed in which at least the first conveyor support girder and the second conveyor support girder are provided with a conveyor belt support mechanism that supports the conveyor belt when they are separated from the reference position.

According to the present invention, the slide mechanism capable of absorbing the rolling caused by an earthquake is provided. Therefore, it is possible to prevent the shaking caused by the earthquake from being transmitted from the legs to the conveyor supporting girder. Further, in the present invention, the plurality of conveyor supporting girders support the conveying rollers by making the arrangement intervals of the conveying rollers in the boundary region between the conveyor supporting girders larger than the arrangement intervals of the conveying rollers in the other regions. For this reason, it becomes possible to arrange the conveyor support girders farther from each other than in the past, and as a result, even if the movable range of the slide mechanism is large, it is possible to prevent the conveyor support girders from interfering with each other due to an earthquake. It becomes possible to adopt. Therefore, according to the present invention, it is possible to absorb the rolling of an earthquake in the conveyor support mechanism, and it is possible to prevent the conveyor support girders from interfering with each other when an earthquake occurs.

It is a schematic block diagram which shows typically the conveyor support mechanism in 1st Embodiment of this invention. It is an enlarged view which shows typically the schematic structure of the slide bearing part with which the conveyor support mechanism in 1st Embodiment of this invention is equipped. It is an enlarged view which shows typically the schematic structure of the slide bearing part with which the conveyor support mechanism in 2nd Embodiment of this invention is equipped. It is a schematic block diagram which shows typically the conveyor support mechanism in 3rd Embodiment of this invention. It is an enlarged view of the link mechanism with which the conveyor support mechanism in a 3rd embodiment of the present invention is provided, (a) shows the link mechanism of a separation attitude, and (b) shows the link mechanism of a support attitude.

An embodiment of a conveyor support mechanism according to the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic configuration diagram schematically showing a conveyor support mechanism 1 according to the first embodiment. The conveyor support mechanism 1 of the present embodiment is a structure that supports a conveyor 50 that conveys coal from a low position to a high position in a thermal power plant or the like. In FIG. 1, the direction parallel to the direction in which coal is conveyed by the conveyor 50 (forward direction) and toward the upstream side of coal transportation (return direction) is the x direction, and the direction orthogonal to the x direction and upward is y. Shown as direction.

The conveyor 50 includes a plurality of transport rollers 51 and an endless belt 52 (transport belt) wound around the transport rollers 51, as schematically shown in FIG. 1. The conveyor 50 also includes a drive unit (not shown) that rotationally drives at least one of the transport rollers 51. The transport rollers 51 are arranged in an upper stage and a lower stage, respectively, and form a forward path and a return path, respectively. The transport rollers 51 arranged in the upper stage support the upper part (portion on which coal is placed) of the endless belt 52 from below, and the transport rollers 51 arranged in the lower stage support the lower part of the endless belt 52 from below. .. The endless belt 52 is an endless belt-shaped annular member made of a flexible material such as rubber, and travels so that the upper part and the lower part are continuously circulated by the power received from the transport roller 51. That is, the endless belt 52 of the present embodiment is a portion that is laid around in the vertical direction in an overlapping manner and that is located on the upper side of the overlapping portion and on the lower side of the overlapping portion.

As shown in FIG. 1, the conveyor support mechanism 1 of the present embodiment includes a plurality of conveyor support girders 2, a plurality of support legs 3 (leg portions), and a support portion 4. The conveyor support girder 2 is a pedestal formed by assembling a plurality of shaped steels and the like in a frame shape, and has a hollow rectangular parallelepiped shape. Each of the conveyor support girders 2 is arranged so as to be inclined so as to rise from one end to the other end, and the major axis is an inclined axis L that rises from one end to the other end. ing. Note that one end of the conveyor support girder 2 in the major axis direction is referred to as a lower end 2a, and the other end of the conveyor support girder 2 in the major axis direction is referred to as an upper end 2b.

The lower end 2a and the upper end 2b of the adjacent conveyor support girders 2 are arranged at substantially the same height, whereby all the conveyor support girders 2 are arranged in a substantially straight line. One of the two adjacent conveyor support girders 2 is a first conveyor support girder 2A, and the other is a second conveyor support girder 2B. Either of the two adjacent conveyor support girders 2 may be the first conveyor support girder 2A or the second conveyor support girder 2B. However, in the present embodiment, for convenience of description, the conveyor support girder 2 located relatively below (upstream side in the coal transport direction) is referred to as the first conveyor support girder 2A, and relatively above (downstream in the coal transport direction). The conveyor support girder 2 located on the side) is referred to as a second conveyor support girder 2B. That is, the upper end 2b of the first conveyor support girder 2A and the lower end 2a of the second conveyor support girder 2B are arranged at substantially the same height, whereby the first conveyor support girder 2A and the second conveyor support girder are supported. The beams 2B are arranged in a substantially straight line so as to be adjacent to and face the beam 2B.

The upper end 2b of the first conveyor support girder 2A and the lower end 2a of the second conveyor support girder 2B face each other with a gap. That is, the first conveyor support girder 2A and the second conveyor support girder 2B are arranged with a gap. As shown in FIG. 1, the endless belt 52 of the conveyor 50 is laid around the gap between the first conveyor support girder 2A and the second conveyor support girder 2B.

The first conveyor support girder 2A supports the plurality of transport rollers 51 at equal intervals along the tilt axis L between the lower end 2a and the upper end 2b thereof. The second conveyor support girder 2B also supports the plurality of transport rollers 51 at equal intervals along the tilt axis L between the lower end 2a and the upper end 2b. The arrangement interval of the transport rollers 51 between the lower end 2a and the upper end 2b of the first conveyor support girder 2A and the transport roller between the lower end 2a and the upper end 2b of the second conveyor support girder 2B. The arrangement interval of 51 is the same as the arrangement interval d1.

On the other hand, the first conveyor support girder 2A and the second conveyor support girder 2B according to the present embodiment include the transport roller 51 arranged near the uppermost end 2b of the first conveyor support girder 2A and the second conveyor support girder 2B. The conveyance roller 51 is supported so that the arrangement interval D with the conveyance roller 51 arranged near the lowermost end 2a is larger (wider) than the arrangement distance d1 described above. That is, in the present embodiment, the plurality of conveyor support girders 2 are arranged such that the arrangement interval D of the conveyance rollers 51 in the boundary area between the conveyor support girders 2 is made larger than the arrangement interval d1 of the conveyance rollers 51 in the other areas. I support you. The separation distance between the upper end 2b of the first conveyor support girder 2A and the lower end 2a of the second conveyor support girder 2B is set to be larger than the arrangement interval d1, for example.

The support leg 3 is formed by, for example, assembling a plurality of shaped steels and the like, and is arranged below the gap between the adjacent conveyor support girders 2 as shown in FIG. 1. Each support leg 3 is erected on the installation surface S, and supports the conveyor support girder 2 from below via the support portion 4. For example, as shown in FIG. 1, one support leg 3 supports the upper end 2b of the first conveyor support girder 2A from below via the bearing 4, and the second conveyor support girder 2B via the bearing 4. The lower end 2a is supported from below.

The support portion 4 is a member inserted between the support leg 3 and the conveyor support girder 2, and transmits the load received from the conveyor support girder 2 to the support leg 3. The conveyor support mechanism 1 of the present embodiment includes, as the bearings 4, a downstream bearing 4A and a slide bearing 4B.

The downstream bearing 4A is a fixed bearing that receives a horizontal load, and is arranged below the upper end 2b of the conveyor support girder 2. The downstream support portion 4A transmits the load received from the upper end 2b of the conveyor support girder 2 to the support leg 3.

The slide bearing portion 4B is arranged below the lower end 2a of the conveyor support girder 2, and transmits the load received from the lower end 2a of the conveyor support girder 2 to the support leg 3. FIG. 2 is an enlarged view schematically showing the schematic configuration of the slide support portion 4B. As shown in this figure, the slide support portion 4B includes a moving member 4a, a slide base 4b (stator), a return spring 4c (biasing member), a vibration damping device 4d (damping member), and a stopper 4e. It has and.

The mover 4a has a fixed support portion 4a1 directly fixed to the conveyor support girder 2 and a moving block 4a2 fixed to a lower end of the fixed support portion 4a1. The fixed bearing 4a1 connects the moving block 4a2 to the conveyor support girder 2. The moving block 4a2 is a block-shaped member, and the lower surface 4a3 is a flat surface. Such a moving block 4a2 is held slidably with respect to the slide base 4b in a horizontal direction along the coal transport direction in a plan view.

The slide base 4b is fixed to the support leg 3 and supports the moving block 4a2 slidably from below. The slide base 4b guides the moving block 4a2 so that the moving block 4a2 can move only in the horizontal direction along the coal transport direction in plan view.

The mover 4a and the slide base 4b described above constitute a slide mechanism 4f. That is, in the present embodiment, the slide bearing portion 4B has the slide mechanism 4f which is connected to the support leg 3 and the slider 4b, which is a stator, and is connected to the conveyor support girder 2, and which absorbs the lateral vibration caused by the earthquake. I have it.

The return spring 4c is arranged on the upstream side of the moving block 4a2 in the coal transport direction. The return spring 4c has one end connected to the moving block 4a2 in the horizontal direction and the other end fixed to the slide base 4b via a stopper 4e. The stopper 4e may be fixed to the support leg 3 and the other end of the return spring 4c may be fixed to the support leg 3 via the stopper 4e. Such a return spring 4c generates a restoring force that returns the moving block 4a2 (that is, the mover 4a) to the initial position when the moving block 4a2 is moved from the initial position to the upstream side or the downstream side in the coal transport direction. To do.

For example, when the moving block 4a2 is moved to the upstream side in the coal transport direction, the return spring 4c is compressed. Further, when the moving block 4a2 is moved to the downstream side in the coal conveying direction, the return spring 4c is extended. In either case, the return spring 4c tries to return to its original shape, and the restoring force generated thereby returns the moving block 4a2 to the initial position.

The vibration damping device 4d is arranged on the downstream side of the moving block 4a2 in the coal transport direction. The vibration damping device 4d has one end connected to the moving block 4a2 in the horizontal direction and the other end fixed to the slide base 4b via a stopper 4e. The stopper 4e may be fixed to the support leg 3 and the other end of the vibration damping device 4d may be fixed to the support leg 3 via the stopper 4e. Such a vibration damping device 4d attenuates the vibration of the moving block 4a2, that is, the conveyor support girder 2 by converting the kinetic energy of the moving block 4a2 into heat energy or the like. As the vibration damping device 4d, for example, an oil damper, a buckling restraint brace, or a shear damper can be used.

The stoppers 4e are arranged at both ends of the slide table 4b in the coal transport direction. The stopper 4e, which is arranged on the upstream side of the moving block 4a2 in the coal conveying direction, fixes the other end of the return spring 4c and prevents the moving block 4a2 from falling off the slide table 4b to the upstream side in the coal conveying direction. Suppress. The stopper 4e arranged on the downstream side of the moving block 4a2 in the coal conveying direction is fixed to the other end of the vibration damping device 4d, and the moving block 4a2 falls off from the slide table 4b to the downstream side in the coal conveying direction. Suppress.

Thus, in this embodiment, each conveyor support girder 2 has its upper end 2b fixed to the support leg 3 via the downstream support 4A and its lower end 2a via the slide support 4B. It is connected to the support leg 3 so as to be horizontally movable.

In the conveyor support mechanism 1 of the present embodiment having such a configuration, the conveyor support girder 2 is arranged at the reference position (the position when the horizontal load due to the earthquake is not applied) and moves in a state where no earthquake occurs. The block 4a2 is arranged at the initial position. When an earthquake occurs and a horizontal load is applied to the support leg 3, the support leg 3 is moved in the horizontal direction, and the moving block 4a2 is moved horizontally relative to the slide base 4b. At this time, the first conveyor supporting girder 2A and the second conveyor supporting girder 2B repeat relatively approaching and separating in the horizontal direction.

When the moving block 4a2 is moved relative to the slide base 4b, the kinetic energy of the moving block 4a2 is attenuated by the action of the vibration damping device 4d, and the swing of the conveyor support girder 2 is suppressed. After the shaking due to the earthquake has stopped, the moving block 4a2 is returned to the initial position by the restoring force of the return spring 4c.

According to the conveyor support mechanism 1 of the present embodiment as described above, the slide support portion 4B includes the slide mechanism 4f capable of absorbing the rolling caused by the earthquake. Therefore, it is possible to prevent the shaking caused by the earthquake from being transmitted from the support leg 3 to the conveyor support girder 2. Further, in the conveyor support mechanism 1 of the present embodiment, the plurality of conveyor support girders 2 are arranged such that the arrangement distance D of the conveyance rollers 51 in the boundary area between the conveyor support girders 2 is smaller than the arrangement distance d1 of the conveyance rollers 51 in other areas. Is also enlarged to support the conveyance roller 51. Therefore, it becomes possible to arrange the conveyor support girders 2 apart from each other, and as a result, even if the movable range of the slide mechanism 4f is large, it is possible to prevent the conveyor support girders 2 from interfering with each other due to an earthquake. can do. Therefore, according to the conveyor support mechanism 1 of the present embodiment, it is possible to absorb the rolling of the earthquake and further prevent the conveyor support girders 2 from interfering with each other when the earthquake occurs.

In the conveyor support mechanism 1 of the present embodiment, one end is connected to the moving element 4a in the moving direction of the moving element 4a, and the other end is fixed to the slide base 4b via the stopper 4e. 4c. Therefore, according to the conveyor support mechanism 1 of the present embodiment, even when the mover 4a moves on the slide base 4b due to an earthquake, the mover 4a is moved to the initial position after the shaking due to the earthquake is stopped. It is possible to automatically return to.

Further, in the conveyor support mechanism 1 of the present embodiment, one end is connected to the moving element 4a in the moving direction of the moving element 4a, and the other end is fixed to the slide base 4b via the stopper 4e. Equipped with a device. Therefore, the vibration of the conveyor support girder 2 with respect to the support leg 3 can be damped.

Further, in the conveyor support mechanism 1 of the present embodiment, the lower end 2a of the conveyor support girder 2 is connected to the support leg 3 via the slide bearing 4B, and the upper end 2b of the conveyor support girder 2 is a fixed bearing. It is connected to the support leg 3 via a certain downstream bearing 4A. Therefore, since one side of the conveyor support girder 2 is fixed to the support leg 3, it is possible to prevent the conveyor support girder 2 from being detached from the support leg 3 even when an earthquake occurs.

(Second embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In the description of the present embodiment, the description of the same parts as those in the first embodiment will be omitted or simplified.

In the conveyor support mechanism of the present embodiment, as in the first embodiment, the support legs 3 cause the conveyor support girder 2 to rise from one end (lower end 2a) toward the other end (upper end 2b). It is supported in a tilted state.

In addition, FIG. 3 is an enlarged view schematically showing the schematic configuration of the slide bearing portion 4C included in the conveyor support mechanism of the present embodiment. As shown in this figure, the slide bearing portion 4C of the present embodiment is provided with a slide base 4g that allows the mover 4a to move in parallel with the tilt axis L of the conveyor support girder 2.

Further, in the slide bearing portion 4C included in the conveyor support mechanism of the present embodiment, the return spring 4c is arranged on the upstream side of the mover 4a in the coal conveying direction and is located below the conveyor support girder 2 as in the first embodiment. It is connected to the mover 4a from the side end 2a side.

That is, in the conveyor support mechanism of the present embodiment, the support legs 3 support the conveyor support girder 2 by inclining the support leg 3 from one end of the conveyor support girder to the other end, and the slide mechanism 4f The conveyor support girder 2 is provided with a slide base 4g capable of moving the mover 4a along an inclined axis L connecting one end to the other end, and a return spring 4c is provided from the one end side of the conveyor support girder 2 to the mover 4a. It is connected to the.

According to the conveyor support mechanism of the present embodiment as described above, the moving element 4a is arranged at the initial position by the urging force of the return spring 4c in a state where no earthquake occurs. On the other hand, when an earthquake occurs, the mover 4a is moved relative to the slide base 4g due to the shaking caused by the earthquake. At this time, the mover 4a is moved along the tilt axis L of the conveyor support girder 2. It Therefore, the conveyor support girder 2 moves along the tilt axis L. As a result, it is possible to prevent the transport roller 51 supported by the conveyor support girder 2 from moving while rotating in the traveling direction of the endless belt 52 and transmitting the swing to the endless belt 52. Therefore, even when an earthquake occurs, the endless belt 52 can stably support the coal.

(Third Embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG. 4 is a schematic configuration diagram schematically showing the conveyor support mechanism 1A in the present embodiment. The factor shown in this figure, the conveyor support mechanism 1A of the present embodiment includes a link mechanism 5 (transport belt support mechanism).

The link mechanism 5 is arranged between the adjacent conveyor support girders 2, that is, between the first conveyor support girder 2A and the second conveyor support girder 2B. Further, as shown in FIG. 1, the link mechanism 5 is arranged between the upper portion (portion on which coal is placed) and the lower portion of the endless belt 52 in the height direction. 5A and 5B are enlarged views of the link mechanism 5, where FIG. 5A shows the link mechanism 5 in a separated posture described later, and FIG. 5B shows the link mechanism 5 in a supported posture described later. As shown in this figure, the link mechanism 5 includes a first link rod 5a, a second link rod 5b, a support portion 5c, a first coil spring 5d, and a second coil spring 5e.

One end 5a1 of the first link rod 5a is pivotally supported on the upper end 2b of the first conveyor support girder 2A, and the other end 5a2 is rotatably connected to the other end 5b2 of the second link rod 5b. Has been done. The one end 5a1 of the first link rod 5a is rotatable with respect to the first conveyor support girder 2A about a rotation axis L1 along a horizontal direction orthogonal to the long axis direction of the first conveyor support girder 2A. It is connected to the. The other end 5a2 of the first link rod 5a is rotatably connected to the second link rod 5b about a rotation axis L2 parallel to the rotation axis L1.

One end 5b1 of the second link rod 5b is pivotally supported with respect to the lower end 2a of the second conveyor support girder 2B, and the other end 5b2 thereof is with respect to the other end 5a2 of the first link rod 5a as described above. It is rotatably connected. The one end 5b1 of the second link rod 5b has a rotation axis L3 (that is, rotation axis L1 and rotation axis L2 parallel to the horizontal direction orthogonal to the long axis direction of the second conveyor support girder 2B). It is rotatably connected to the second conveyor support girder 2B about the axis L3). The other end 5b2 of the second link rod 5b is rotatably connected to the first link rod 5a about the rotation axis L2.

The other end portion 5a2 of the first link rod 5a and the other end portion 5b2 of the second link rod 5b that are rotatably connected to each other about the rotation axis L2 form one joint portion 5f of the link mechanism 5. is doing. That is, the first link rod 5a and the second link rod 5b are relatively rotatably connected by the joint 5f. When the joint portion 5f is moved in a direction in which the one end portion 5a1 of the first link rod 5a and the one end portion 5b1 of the second link rod 5b are separated from each other, the joint portion 5f is centered on the rotation axis L1 of the first link rod 5a. And the rotation about the rotation axis L2 of the second link rod 5b. That is, the joint portion 5f moves up when the first conveyor support girder 2A and the second conveyor support girder 2B are moved in the direction in which they are separated from each other. In the present embodiment, the first link rod 5a and the second link rod 5b are linear members, and the support leg 3 is located on the side of the angle formed by the first link rod 5a and the second link rod 5b. ..

The support portion 5c is connected to the joint portion 5f and is arranged below the upper portion of the endless belt 52 with a certain gap therebetween. As shown in FIG. 5, the supporting portion 5c includes a connecting rod 5c1 and a contact pad 5c2. The connecting rod 5c1 is a rod member whose lower end is connected to the joint 5f so as to be rotatable about the rotation axis L2. The connecting rod 5c1 is arranged with its tip end facing the endless belt 52 by the first coil spring 5d and the second coil spring 5e. That is, it is located on the inferior side of the angle formed by the first link rod 5a and the second link rod 5b. Further, the connecting rod 5c1 does not contact the contact pad 5c2 with the endless belt 52 when the link mechanism 5 is in the separated posture described later, and the contact pad 5c2 is in the support posture described later. Is set so as to contact the endless belt 52 from below.

The contact pad 5c2 is a substantially plate-shaped portion fixed to the tip of the connecting rod 5c1, and the surface opposite to the surface to which the connecting rod 5c1 is connected is opposite to the upper back surface of the endless belt 52. Abuttable. Hereinafter, such a surface of the contact pad 5c2 that can contact the endless belt 52 will be referred to as a contact surface 5c3. The contact surface 5c3 is separated from the endless belt 52 when the link mechanism 5 is in the separation posture described below, and is contacted from below with the endless belt 52 when the link mechanism 5 supports the link mechanism 5 described below. .. In this way, the contact pad 5c2 contacts the endless belt 52 from below, so that the link mechanism 5 supports the endless belt 52 from below in the gap between the first conveyor support girder 2A and the second conveyor support girder 2B.

The first coil spring 5d has one end connected to the center of the first link rod 5a and the other end connected to the center of the connecting rod 5c1 of the support 5c, and the support 5c connects the first link rod 5a. The tilting to the side by its own weight is restricted. The second coil spring 5e has one end connected to the central portion of the second link rod 5b and the other end connected to the central portion of the connecting rod 5c1 of the support portion 5c, and the support portion 5c is connected to the second link rod 5b. The tilting to the side by its own weight is restricted. The first coil spring 5d and the second coil spring 5e are extended and connected between the first link rod 5a or the second link rod 5b and the connecting rod 5c1 when the link mechanism 5 is in the supporting posture described later. A biasing force is generated in a direction in which the first link rod 5a or the second link rod 5b approaches the rod 5c1. As a result, a restoring force is generated to bring the link mechanism 5 into the separated posture.

When the link mechanism 5 is in the reference position, the link mechanism 5 has the separated posture shown in FIG. In this separated posture, one end 5a1 of the first link rod 5a and one end 5b1 of the second link rod 5b are closer to each other than a support posture described later, and the joint portion 5f is far from the upper portion of the endless belt 52. The contact pad 5c2 is positioned so as to be separated from the back surface of the endless belt 52. The link mechanism 5 in such a separated posture does not come into contact with the endless belt 52 and does not become a resistance to the running of the endless belt 52.

On the other hand, the link mechanism 5 is a position in which the first conveyor support girder 2A and the second conveyor support girder 2B are close to each other in the horizontal direction with respect to the reference position due to a horizontal load applied by an earthquake or the like. In this case, the supporting posture shown in FIG. In this supporting posture, one end portion 5a1 of the first link rod 5a and one end portion 5b1 of the second link rod 5b are positioned farther than the separated posture, and the joint portion 5f approaches the upper portion of the endless belt 52. By being arranged, the contact pad 5c2 is brought into contact with the back surface of the endless belt 52. The link mechanism 5 having such a supporting posture contacts the endless belt 52 from below and supports the endless belt 52 from below.

The conveyor support mechanism 1A of this embodiment having such a configuration supports the conveyor 50 without bringing the link mechanism 5 into contact with the conveyor 50 in a state where no earthquake or the like has occurred. On the other hand, when an earthquake or the like occurs and the first conveyor support girder 2A and the second conveyor support girder 2B are horizontally separated from each other, the link mechanism 5 is moved from the separated posture to the support posture. The endless belt 52 is supported from below by the link mechanism 5 between the second conveyor supporting girder 2B and the second conveyor supporting girder 2B.

That is, in the conveyor support mechanism 1A of the present embodiment, the conveyor 50 has the flexible endless belt 52 supported by the transport rollers 51, and is arranged between the adjacent conveyor support girders 2. The link mechanism 5 supports the endless belt 52 when at least the conveyor supporting girders 2 arranged adjacent to each other are separated from the reference position. According to the conveyor support mechanism 1 of the present embodiment as described above, the link mechanism 5 can convey the conveyor when the first conveyor support girder 2A and the second conveyor support girder 2B are at the reference position without requiring electric power or the like. When the first conveyor support girder 2A and the second conveyor support girder 2B are separated from the reference position, the link mechanism 5 takes a support attitude in which the link mechanism 5 supports the conveyor 50. Therefore, according to the conveyor support mechanism 1 of the present embodiment, when the first conveyor support girder 2A and the second conveyor support girder 2B are separated from each other due to an earthquake or the like, the conveyor 50 is supported by the link mechanism 5 and the conveyor 50 is provided. It is possible to prevent the endless belt 52 from loosening.

In addition, in the present embodiment, a configuration including the link mechanism 5 that supports the endless belt 52 only when the adjacent conveyor support girders 2 are separated from the reference position is adopted. However, the present invention is not limited to this, and a conveyor belt supporting mechanism that constantly supports the endless belt 52 between the conveyor supporting girders 2 may be provided.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but it goes without saying that the present invention is not limited to the above embodiments. The shapes, combinations, and the like of the respective constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the spirit of the present invention.

For example, in the above embodiment, the configuration has been described in which the mover 4a is movable only in the coal transport direction with respect to the slide base 4b or the slide base 4g in a plan view. However, the present invention is not limited to this, and the mover 4a can move with respect to the slide base 4b or the slide base 4g in the horizontal direction orthogonal to the coal transfer direction in addition to the coal transfer direction in plan view. It is also possible to adopt various configurations.

Further, in the above-described embodiment, each conveyor support girder 2 is fixed to the support leg 3 such that the lower end 2a is horizontally movable via the slide bearing 4B, and the upper end 2b is supported via the fixed bearing. The structure connected to the leg 3 is adopted. However, the present invention is not limited to this, and each conveyor support girder 2 is fixed to the support leg 3 such that the upper end 2b is horizontally movable via the slide support portion 4B and the lower end 2a is fixed. It is also possible to adopt a configuration in which the support leg 3 is connected via a support portion. That is, the slide bearing portion 4B may be provided on the side of the first conveyor support girder 2A among the end portions of the first conveyor support girder 2A and the end portion of the second conveyor support girder 2B which face each other, or It may be provided on the conveyor support girder 2B side.

1...Conveyor support mechanism 1A...Conveyor support mechanism 2...Conveyor support girder 2a...Lower end (one end)
2A... 1st conveyor support girder 2b... Upper end (other end)
2B: Second conveyor support girder 3: Support leg (leg)
4... Bearing 4a... Mover 4A... Downstream bearing 4a1... Fixed bearing 4a2... Moving block 4a3... Bottom surface 4b... Slide base 4B... Slide bearing 4c... Return spring 4C... …Slide support 4d……Vibration suppression device 4e……Stopper 4f……Slide mechanism 4g……Slide base 5……Link mechanism (transport belt support mechanism)
5a...first link rod 5a1...one end 5a2...other end 5b...second link rod 5b1...one end 5b2...other end 5c...support 5c1...connecting rod 5c2...this Contact pad 5c3 ...... Contact surface 5d ...... First coil spring 5e ...... Second coil spring 5f ...... Joint part 50 ...... Conveyor 51 ...... Conveyor roller 52 ...... Endless belt (conveyor belt)
D... Arrangement interval d1... Arrangement interval L... Tilt axis L1... Rotation axis L2... Rotation axis L3... Rotation axis S... Installation surface

Claims (7)

A first conveyor supporting girder supporting a plurality of conveying rollers for supporting an outward path of an endless belt-shaped conveying belt,
A second conveyor supporting girder supporting a plurality of conveying rollers supporting an outward path of the conveying belt on the downstream side in the conveying direction of the conveying belt, and facing the first conveyor supporting girder;
Legs supporting the first conveyor support girder and the second conveyor support girder,
A support portion having a slide mechanism interposed between the first conveyor supporting girder or the second conveyor supporting girder and the leg portion,
An interval between the transport roller located on the most downstream side of the first conveyor support girder and the transport roller located on the most upstream side of the second conveyor support girder is adjacent in the transport direction of the first conveyor support girder. The conveyor support mechanism is characterized in that it is wider than the interval between the transport rollers. 2. The conveyor support mechanism according to claim 1, wherein the support portion exerts a restoring force in the sliding direction of the slide mechanism. The support portion includes a stator connected to the leg portion, and a mover connected to the first conveyor support girder or the second conveyor support girder.
The conveyor according to claim 2, further comprising a biasing member, one end of which is connected to the mover in a moving direction of the mover and the other end of which is fixed to the leg or the stator. Support mechanism. The leg portion supports the conveyor support girder by inclining so as to rise from one end of the conveyor support girder toward the other end,
The slide mechanism includes a slide base that allows a mover to move along an inclined axis connecting one end to the other end of the conveyor support girder,
The conveyor support mechanism according to claim 3, wherein the biasing member is connected to the mover from one end side of the conveyor support girder. 5. A damping member, one end of which is connected to the mover in the moving direction of the mover and the other end of which is fixed to the leg or the stator, according to claim 3 or 4. Conveyor support mechanism. One of the one end and the other end of the conveyor support girder is connected to the leg through the bearing, and the other one of the one end and the other end of the conveyor support girder through the fixed bearing. The conveyor support mechanism according to claim 2, wherein the conveyor support mechanism is connected to the legs. The conveyor belt has flexibility,
The conveyor belt is arranged between the first conveyor support girder and the second conveyor support girder, and at least when the first conveyor support girder and the second conveyor support girder are separated from a reference position. The conveyor support mechanism according to any one of claims 1 to 6, further comprising a conveyor belt support mechanism that supports the conveyor belt.

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