JP6339462B2 - Seal belt presser opening and closing device - Google Patents

Description

  The present invention relates to a seal belt presser opening and closing device that opens and closes (opens and closes) a seal belt presser installed in a conveyor facility that transports bulk materials such as coal and iron ore.

  In general, loose materials such as coal and iron ore discharged from an unloader or the like are conveyed to a predetermined storage location by a conveyor facility provided on the ground.

FIG. 1 is a schematic plan view of a conveyor facility to which the present invention is applied.
In this figure, the conveyor facility includes two belt conveyors 1 parallel to each other and four coal conveyors 2 arranged so as to cross the belt conveyor 1. In the drawing of the coal-carrying conveyor 2, a wharf on which a transport ship carrying the bulk is anchored is provided above, and the bulk (in this example, coal) is transferred from the transport ship by an unloader (not shown). To be taken out. The coal-carrying conveyor 2 moves along a wharf transport ship.

  In FIG. 1, the bulk material unloaded by the unloader is transported downward in the figure by four coal-carrying conveyors 2 that move together with the unloader, and two belts from a chute (not shown) provided at the intersection. It is transferred to the conveyor 1 and conveyed rightward in the figure. A transferer 7 (see FIG. 3), which will be described later, is located at this intersection.

  In this example, the conveying capacity of each belt conveyor 1 is more than twice the conveying capacity of each coal conveyor 2 so that bulk materials can be simultaneously transferred from the two coal conveyors 2 to each belt conveyor 1. It has become.

FIG. 2 is a schematic plan view of the belt conveyor 1.
Since the belt conveyor 1 generates dust when transferring and transporting bulk material (coal), the belt conveyor 1 has a conveyor cover with an open top around the belt on which the bulk material is placed so that the dust is not scattered. The sealing belt 3 is placed on the conveyor cover to seal the belt conveyor.
In this figure, reference numeral 4 denotes a rail installed horizontally on the outer side in the width direction of the seal belt 3. A transferer 7 described later travels on the rail 4.

Further, since the seal belt 3 is only placed on the upper part of the conveyor cover, there is a risk of drowning when strong winds or gusts blow. Therefore, as shown in this figure, one end of the swivel arm 5 is supported by a hinge provided on the outside of the seal belt 3 so as to be horizontally swivelable, and the other end is fixed by a lock device 6 so as to hold down the seal belt 3. I have to.
Hereinafter, the swivel arm 5 and the locking device 6 described above are referred to as “seal belt presser”.

FIG. 3 is a schematic side view of the transfer car 7.
The transferer 7 moves along the belt conveyor 1 together with the moving coal conveyor 2. Therefore, the transfer car 7 has a function of moving along the belt conveyor 1 together with the chute and partially lifting the seal belt 3 so that the seal belt 3 passes above the chute.

The seal belt presser (the swivel arm 5 and the lock device 6) is always locked outside the movement range of the transfer car 7. However, in order to partially lift the seal belt 3 within the movement range of the transfer car 7, it is necessary to unlock and turn the swivel arm 5 to avoid the seal belt 3 from above.
For this reason, a device that automatically opens and closes (opens and closes) the seal belt presser (hereinafter referred to as “seal belt presser open / close device”) in association with the movement of the transfer car 7 has already been proposed (for example, Patent Documents 1 to 3). 4).

JP 7-257723 A JP-A-8-225128 JP-A-9-202420 JP 2002-12327 A

As shown in FIG. 3, the transfer car 7 has a main body frame 7 a, wheels 7 b, and guide rolls 7 c and moves on the rail 4. The plurality of guide rolls 7c are cylindrical rolls that are disposed before and after the main body frame 7a in the traveling direction and freely rotate about a horizontal axis.
The chute described above is located inside the main body frame 7a. With this configuration, the transfer car 7 moves on the rail 4 together with the chute by the wheels 7b, guides the seal belt 3 by the plurality of guide rolls 7c, and partially lifts the seal belt 3.

  A conventional seal belt presser opening / closing device is, for example, a guide 8 fixed in front of and behind a main body frame 7a in FIG. That is, the conventional seal belt presser opening / closing device is provided with the guide 8 in the traveling direction of the transfer car 7, and unlocking the locking device 6 and opening / closing the swivel arm 5 in accordance with the traveling of the transfer car 7.

  Since the conventional guide 8 is fixed to the main body frame 7a, the transfer car 7 and the guide 8 have an integral structure. For this reason, when the posture of the transfer car 7 changes, the height of the guide 8 rises and falls, and a level difference (height difference) may occur between the guide 8 and the swing arm 5 or the lock device 6.

In the conveyor equipment described above, the overall length of the belt conveyor 1 is long (for example, 500 to 600 m), two belt conveyors 1 are arranged in parallel, two transferers 7 are connected, and two belt conveyors 1 are connected. Move along.
In such a case, the rail 4 is not completely horizontal, and there are undulations due to installation errors and design intent. Due to this undulation, the body frame 7a guided by the wheels 7b changes its posture depending on its position. As a result, the height of the guide 8 changes. This change in posture is, for example, the tilt (rotation about the width direction axis) of the transfer car 7.
Therefore, even when each guide 8 is attached to the main body frame 7a so that the height can be adjusted, the position and the size of the undulation are random, and therefore the swivel arm 5 or the lock device 6 is used for adjusting the height of the guide 8. It was difficult to eliminate the level difference.

As a result, it is difficult to adjust the mounting of the guide 8 on a conveyor having a plurality of transfer cars 7, the guide 8 does not contact the swing arm 5 or the lock device 6, and the swing arm 5 does not open or the lock device 6 is released. There was a possibility that trouble would occur.
When such a trouble occurs, it is necessary to stop the movement of the transfer car 7 in order to avoid damage to the seal belt 3, the swivel arm 5 and the lock device 6, and the operating rate of the conveyor equipment described above is reduced. Become.

  The present invention has been developed to solve the above-described problems. That is, an object of the present invention is to provide a seal belt presser opening and closing device that can reliably open and close the seal belt presser (release the lock device and open and close the swivel arm) even if the transferer posture changes (for example, tilt). Is to provide.

According to the present invention, a seal belt horizontally mounted on the upper surface of the endless belt, a pair of rails horizontally installed on the outer side in the width direction of the seal belt, and the seal belt partially A seal belt press opening and closing device for a belt conveyor, comprising: a transfer car that travels on a rail while being lifted; and a seal belt press that prevents the seal belt from curling upward,
The seal belt presser opening and closing device includes a pair of guide carriages that are connected in front and rear in the traveling direction of the transfer car and move together therewith,
Each guide carriage includes a wheel that travels on the rail, a carriage body supported by the wheel, and a guide member that is fixed to the carriage body and opens and closes the seal belt presser,
There is provided a seal belt presser opening and closing device, wherein the carriage main body and the transfer car are connected to each other by an independent connection mechanism capable of traveling independently in the vertical direction and the width direction.

The independent connection mechanism includes a pair of vertical pins provided on one of the cart body and the transfer car,
A pair of horizontal plates having elongated holes extending vertically through the vertical pins, the horizontal plates being fixed to the other of the carriage body and the transfer car,
Even if the posture of the transfer car changes due to the undulation of the rail, the elongated hole has a gap between the vertical pin and the vertical pin so that the carriage body can run independently by the rail.

The bogie main body extends horizontally in the direction of separating from the transferer along one of the rails from one end of the first horizontal member, extending horizontally in the width direction adjacent to the transferer. A second horizontal member, and a third horizontal member that connects the tip of the second horizontal member and the other end of the first horizontal member and extends horizontally in an oblique direction with respect to the rail,
The first horizontal member, the second horizontal member, and the third horizontal member form a triangle in plan view.

  The wheels include a first wheel and a second wheel that are arranged at intervals along one of the rails and guided by the rail, and a third wheel that is arranged on the other side of the rail and guided by the rail. Become.

The seal belt presser is a swivel arm that can be swiveled horizontally between a holding position that is located above the seal belt and prevents its curling and an open position that is disengaged from the top of the seal belt; and A locking device that releasably secures the holding position;
The guide member includes a lock release guide that releases the lock device, and an arm movement guide that moves the swivel arm between the holding position and the release position.

The swivel arm has a swivel biasing device that supports a distal end of the swivel arm so as to swivel from the open position to the holding position, and an arm that is attached to an upper surface of an intermediate position of the swivel arm and rotates freely about a vertical axis A roller, and
The arm movement guide is fixed to the carriage main body and contacts the arm roller by traveling to move the swivel arm between the holding position and the opening position.

  The arm movement guide is positioned horizontally and tilted with respect to the rail, and the tilt guide portion moves the arm roller between the holding position and the release position, and is positioned horizontally and parallel to the rail and swivels. A parallel guide portion for holding the arm in the open position.

  The transfer carrier has an arm holding guide positioned between the pair of parallel guide portions and parallel to the rail, and the arm holding guide contacts the arm roller to release the swivel arm. Hold in position.

The lock device includes a pair of stopper plates that fix the swivel arm to the holding position so that the swivel arm is unrotatable with the distal end portion of the swivel arm being spaced apart in the rotation direction.
The stopper plate is configured to be swingable about a horizontal axis, one end of which is biased to a fixed position sandwiching the tip of the swivel arm, and the stopper plate is moved from the fixed position to the released position. Have a release striker to move,
The unlocking guide is fixed to the bogie main body, and comes into contact with the release striker by its travel to move it to the release position.

  According to the configuration of the present invention, a pair of guide carriages are connected in the front and rear directions of the transfer car, and each guide carriage has a wheel and a carriage body and a guide member that opens a seal belt presser. Further, the carriage main body and the transfer car are connected to each other by an independent connection mechanism capable of traveling independently in the vertical direction and the width direction.

  Since the carriage body of the guide carriage is connected to the transfer car by the independent connection mechanism, even if the attitude of the transfer car changes, it is not affected. Moreover, since the cart body is supported by the wheels that run on the rail, the guide member fixed to the cart body is always located at a certain height from the upper surface of the rail.

Also, even when multiple transfer cars are running, each guide carriage follows the rail, so each guide member can be held at a constant height at all times, and the seal belt presser can be securely held without causing a swing. Can be released.
Therefore, even if the posture of the transfer car changes (for example, tilt), the seal belt presser can be reliably opened and closed (the lock device is released and the swing arm is opened and closed).

It is a typical top view of the conveyor installation to which this invention is applied. It is a typical top view of a belt conveyor. It is a typical side view of a transfer car. It is a front view of a belt conveyor provided with a seal belt presser opening and closing device according to the present invention. It is the top view (A) of FIG. 4 and the top view (B) of a guide member. It is AA sectional drawing of FIG. 5 (A). It is a top view of a seal belt presser. It is sectional drawing in the BB line of FIG. They are the front view (A) and top view (B) of a guide trolley | bogie, and the top view (C) of a guide member. FIG. 10 is a detailed view of a part A in FIGS. 4 and 9, (A) is a front view, and (B) is a plan view thereof. It is explanatory drawing of the releasing operation | movement of a seal belt presser. It is explanatory drawing of the closing operation | movement of a seal belt presser.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.

  FIG. 4 is a front view of the belt conveyor 10 provided with the seal belt presser opening / closing device 30 according to the present invention. FIG. 5 is a plan view (A) of FIG. 4 and a plan view (B) of the guide member 36. FIG. 6 is a cross-sectional view taken along the line AA in FIG. In FIG. 6, the transfer car 18 is not shown.

  4 to 6, the belt conveyor 10 includes an endless belt 12, a seal belt 14, a pair of rails 16, and a transferr 18.

The endless belt 12 is disposed horizontally.
4 and 6, the endless belt 12 includes an upper feed side 12a and a lower return side 12b. The endless belt 12 rotates horizontally in an endless manner and horizontally transports the bulk material placed on the belt on the feed side 12a. The horizontal conveyance distance of the endless belt 12 is, for example, 500 to 600 m.

In FIG. 6, the belt conveyor 10 has a conveyor cover 13 and surrounds the endless belt 12 on which the bulk material is placed in a box shape with an open top.
The seal belt 14 is horizontally placed on the upper surface along the endless belt 12 so as to block the upper opening of the conveyor cover 13 and prevent dust generated during transfer and transportation of loose materials (for example, coal) from being scattered. It has become.
The seal belt 14 is a flexible sheet material (for example, a rubber belt).

  As shown in FIGS. 5A and 6, the pair of rails 16 are horizontally installed on the outer side in the width direction of the seal belt 14. The pair of rails 16 are arranged in parallel to each other. Moreover, it is preferable that the upper surface height is also the same.

As shown in FIG. 4, the transfer car 18 travels on the rail while partially lifting the seal belt 14.
The transferer 18 has a main body frame 18a, wheels 18b, and guide rolls 18c. A plurality (six in this example) of guide rolls 18c are cylindrical rolls that are arranged in front of and behind the main body frame 18a in the traveling direction and freely rotate around a horizontal axis.
The chute (not shown) described above is located inside the main body frame 18a. With this configuration, the transfer car 18 moves on the rail together with the chute by a plurality (four in this example) of wheels 18b, and guides the seal belt 14 by a plurality of guide rolls 18c. It is designed to lift.

In FIG. 6, the belt conveyor 10 further includes a seal belt presser 20.
7 is a plan view of the seal belt presser 20, and FIG. 8 is a cross-sectional view taken along the line BB of FIG.
The seal belt presser 20 includes a swing arm 22 and a lock device 24, and prevents the seal belt 14 from being swung upward. The seal belt presser 20 is provided along the belt conveyor 10 at a predetermined interval (for example, a pitch of about 10 m).

As shown in FIG. 7, the swivel arm 22 is a rod-like member, and is set longer than the entire width of the seal belt 14 and shorter than the inner distance between the pair of rails 16. The turning arm 22 is configured to be turnable horizontally between the holding position H and the open position F.
The holding position H is a position that is located above the seal belt 14 and prevents its curling. In this example, the holding position H extends across the seal belt 14 in the width direction.
The open position F is a position deviated from above the seal belt 14, and in this example, is located parallel to the rail 16 between the outside of the seal belt 14 and the inside of the rail 16. In this figure, the open position F has two positions, that is, a case where a horizontal turn is made upward and a case where a horizontal turn is made downward.

  As shown in FIGS. 6 and 7, the turning arm 22 includes a turning urging device 23a and an arm roller 23b.

The turning urging device 23a is located between the outer side of the seal belt 14 on the distal end side (right side in the figure) of the turning arm 22 and the inner side of the rail 16, and supports the distal end portion of the turning arm 22 so that it can be turned horizontally. Energize from position F to holding position H. This urging force is, for example, by a coil spring.
The swivel arm 22 can horizontally swivel in both the upper and lower directions in FIG. 7 and returns to the holding position H by the biasing force of the coil spring when no external force is applied. The speed of returning from the open position F to the holding position H should be adjustable.

  In this example, the arm roller 23b is a free roller that is attached to the upper surface of the intermediate position of the swivel arm 22 and freely rotates about the vertical axis a. The arm roller 23b rotates the swing arm 22 between the holding position H and the release position F by contact with the arm movement guide 38 (see FIG. 7).

7 and 8, the locking device 24 is located between the outer side of the seal belt 14 on the distal end side (left side in the figure) of the swivel arm 22 and the inner side of the rail 16, and can release the swivel arm 22 to the holding position H. Secure to.
In this example, the locking device 24 has a pair of stopper plates 25a.
The pair of stopper plates 25a fixes the swivel arm 22 to the holding position H so that the swivel arm 22 cannot swivel, with the tip end portion of the swivel arm 22 being spaced apart in the rotational direction (vertical direction in FIG. 7). The pair of stopper plates 25 a is configured to be swingable about a horizontal axis b (FIG. 8), and one end thereof is biased to a fixed position L that sandwiches the tip of the turning arm 22. In this example, this urging force is due to the weight 25c fixed to one end of the stopper plate 25a. At the fixed position L, as shown by a solid line in FIG. 8, the tip of the turning arm 22 is fixed to the holding position H by a pair of stopper plates 25a.

The pair of stopper plates 25a has a release striker 25b for moving the stopper plate 25a from a fixed position L (solid line position) to a release position U indicated by a broken line in FIG.
The release striker 25b is connected to the upper part of the pair of stopper plates 25a, and moves the stopper plate 25a to the release position U indicated by the broken line in FIG. 8 by contact with the lock release guide 37 (see FIG. 7). . At the release position U, the pair of stopper plates 25a sandwiching the distal end portion of the turning arm 22 moves downward, so that the turning arm 22 can freely turn.

  4 and 5, the seal belt presser opening / closing device 30 of the present invention includes a pair of guide carriages 32 that are connected to the front and rear of the transferer 18 in the traveling direction and move together therewith. The pair of guide carriages 32 is configured as a line target before and after the transfer car 18 in the traveling direction.

  FIG. 9 is a front view (A) and a plan view (B) of the guide carriage 32 and a plan view (C) of the guide member 36. This figure shows the guide carriage 32 on the right side in FIGS. In FIG. 9, each guide carriage 32 includes a wheel 34, a carriage body 35, and a guide member 36.

The wheels 34 travel on the pair of rails 16 described above.
In FIG. 9B, the wheels 34 are arranged at intervals along one of the rails 16 (the lower side in the drawing) and are guided by the rails 16, the first wheels 34 a and the second wheels 34 b, and the rails 16. The third wheel 34c is arranged on the other side (the upper side in the figure) and guided by the rail 16.
The first wheel 34 a and the second wheel 34 b are both flanged wheels, and guide the carriage main body 35 without meandering along the rail 16. The third wheel 34c may be a flanged wheel or a wrinkleless wheel, and is adapted to follow the movement of the carriage main body 35.

The cart body 35 is supported by the three wheels 34 described above.
In FIG. 9B, the cart body 35 includes a first horizontal member 35a, a second horizontal member 35b, and a third horizontal member 35c.

The first horizontal member 35 a extends horizontally in the width direction adjacent to the transfer carrier 18.
The second horizontal member 35b extends horizontally from one end of the first horizontal member 35a along one of the rails 16 (lower side in the drawing) away from the transferer 18 (right side in the drawing).
The third horizontal member 35 c connects the tip end portion (right end portion) of the second horizontal member 35 b and the other end portion (upper end portion in the figure) of the first horizontal member 35 a and extends horizontally in an oblique direction with respect to the rail 16.
The first horizontal member 35a, the second horizontal member 35b, and the third horizontal member 35c form a triangle in plan view. Note that the triangle is a right triangle in this example.

  The first wheel 34a described above is attached to the vicinity of the tip (right end) of the second horizontal member 35b via an auxiliary member 35d. The second wheel 34b is attached near one end of the first horizontal member 35a, and the third wheel 34c is attached near the other end of the first horizontal member 35a.

  With the configuration of the guide carriage 32 described above, the carriage main body 35 can be stably driven on the pair of rails 16 by the three-point support by the three wheels 34. Further, the first wheel 34a and the second wheel 34b guide the carriage main body 35 without meandering along one rail 16, and the third wheel 34c follows the movement of the carriage main body 35. The rail 16 can be guided with high accuracy.

  The guide member 36 is fixed to the carriage main body 35 and has a function of opening the seal belt presser 20. As shown in FIG. 9B, the guide member 36 includes a lock release guide 37 and an arm movement guide 38.

The lock release guide 37 has a function of releasing the lock device 24 described above.
The unlocking guide 37 is a bar-like member that is disposed horizontally and parallel to the rail 16, and is fixed below the carriage main body 35. When the carriage main body 35 is guided by the rail 16 and travels, as shown in FIGS. 7 and 8, the lock release guide 37 contacts the release striker 25 b of the lock device 24 and moves it to the release position U, The lock device 24 is released.

The arm movement guide 38 moves the swing arm 22 between the holding position H and the release position F.
The arm movement guide 38 is fixed below the cart body 35. As the carriage main body 35 travels while being guided by the rails 16, as shown in FIG. 7, the arm movement guide 38 contacts the arm roller 23 b and moves the turning arm 22 between the holding position H and the release position F. .

In FIG. 9C, the arm movement guide 38 has an inclined guide portion 38a and a parallel guide portion 38b. The inclined guide portion 38a and the parallel guide portion 38b may be an integral part.
The inclined guide portion 38a is positioned horizontally and inclined with respect to the rail 16, contacts the arm roller 23b, and moves the swing arm 22 between the holding position H and the open position F.
The parallel guide portion 38b is positioned horizontally and parallel to the rail 16, and contacts the arm roller 23b to hold the turning arm 22 in the open position F.

In FIG. 5B, the transferr 18 has an arm holding guide 19 positioned horizontally and parallel to the rail 16 between a pair of parallel guide portions 38 b.
The arm holding guide 19 is a rod-like member disposed in parallel with the rail 16 and is fixed below the main body frame 18 a of the transfer carrier 18. The arm holding guide 19 is preferably installed at the same position as the parallel guide portion 38b with respect to the rail 16 and has the same cross-sectional shape.
With this configuration, the arm holding guide 19 comes into contact with the arm roller 23b to hold the swivel arm 22 in the open position F.

A gap is provided between the both end faces of the arm holding guide 19 and the end faces of the pair of parallel guide portions 38b. This gap is set to a size that allows the carriage main body 35 and the transfer car 18 to travel independently in the vertical direction and the width direction. This gap is preferably larger than the relative movement amount (± about 4 mm) of the independent connecting mechanism 40 described later in the traveling direction.
Further, both end portions of the arm holding guide 19 are provided with tapered surfaces (not shown) that allow a relative movement amount (± about 12.5 mm) in the width direction of the independent coupling mechanism 40 described later. Furthermore, the diameter of the arm roller 23b is set to a size that allows a relative movement amount in the width direction. The arm roller 23b has a diameter of about 120 mm (100 to 150 mm).

  With the above-described configuration, the swing arm 22 can be held in the open position F as it is by the arm holding guide 19 of the transfer car 18 after the guide carriage 32 has passed.

  4, 5, and 9, the carriage main body 35 and the transfer car 18 are connected to each other by an independent connection mechanism 40 that can travel independently in the vertical direction and the width direction.

FIG. 10 is a detailed view of a portion C in FIGS. 4 and 9, (A) is a front view, and (B) is a plan view thereof.
The independent connection mechanism 40 includes a pair of vertical pins 41 and a pair of horizontal plates 42.
The pair of vertical pins 41 is provided on one of the cart body 35 and the transfer car 18 (in this example, the first horizontal member 35a of the cart body 35) and extends vertically.
The pair of horizontal plates 42 has an elongated hole 42a that passes through the vertical pin 41 vertically and extends in the width direction.
The pair of horizontal plates 42 are fixed to the other of the carriage main body 35 and the transfer car 18 (in this example, the main body frame 18a of the transfer car 18).

The long hole 42 a has a gap between it and the vertical pin 41. This gap is set so that the carriage main body 35 can travel independently by the rail 16 even if the posture of the transfer car 18 changes due to the undulation of the rail 16.
In this example, the diameter of the vertical pin 41 is, for example, about 25 mm (20-30 mm), and the dimension of the long hole 42a is, for example, about 33 mm × about 50 mm (28-38 mm × 40-60 mm).
By this gap, the carriage main body 35 can move relative to the transfer car 18 by ± about 4 mm in the traveling direction and ± about 12.5 mm in the width direction. Further, there is a gap between the horizontal plate 42 and the vertical pin 41, and relative movement of ± about 30 mm can be made in the vertical direction. Furthermore, these gaps allow a relative tilt (rotation about the width direction axis) of about ± 1 to 5 degrees in the front-rear direction.

  The independent connection mechanism 40 is not limited to the above-described configuration, and it is sufficient that the carriage main body 35 and the transfer car 18 can travel independently on the rail 16 in the vertical direction and the width direction, respectively.

Even if the posture of the transfer car 18 is changed by the independent coupling mechanism 40 described above, the carriage main body 35 of the guide carriage 32 is not affected. Since the carriage main body 35 is supported by the wheels 34 running on the rails 16, the guide member 36 fixed to the carriage main body 35 is always located at a certain height from the upper surface of the rails 16.
Further, even when a plurality of transfer cars 18 travel, each guide carriage 32 follows the rail 16, so that each guide member 36 can always be held at a constant height, and no swinging occurs. The seal belt presser 20 can be opened.

  FIG. 11 is an explanatory view of the opening operation of the seal belt presser 20. In this figure, the transferer 18 (not shown) is moving in the right direction indicated by an arrow. As the transfer car 18 moves, a guide carriage 32 (not shown) connected thereto moves, and an unlocking guide 37 and an arm moving guide 38 fixed thereto move to the right.

  In FIG. 11, the swivel arm 22 is in the holding position H in (A) and is in the open position F in (D). In (B) and (C), the turning arm 22 is at an intermediate position between the holding position H and the opening position F.

In (A), the lock release guide 37 is engaged with the stopper plate 25a to release the lock device 24.
Next, the inclined guide portion 38a comes into contact with the arm roller 23b, and the swivel arm 22 is moved from the holding position H to the open position F as shown in (B), (C), and (D).
Further, in (D), the parallel guide portion 38b comes into contact with the arm roller 23b, and holds the turning arm 22 in the open position F. Further, the swing arm 22 is held in the open position F as it is by the arm holding guide 19 of the transfer car 18 after the guide carriage 32 has passed.
As shown in (C) and (D), when the unlocking guide 37 passes, the stopper plate 25a described above returns to the fixed position L by the urging force of the weight 25c, and the swivel arm 22 is fixed to the holding position H. .

  With the above-described configuration, the lock device 24 can be released by the lock release guide 37 and the swivel arm 22 can be moved from the holding position H to the open position F by the arm movement guide 38 when the guide carriage 32 travels.

  FIG. 12 is an explanatory view of the closing operation of the seal belt presser 20. In this figure, the transferer 18 (not shown) is moving in the right direction indicated by an arrow. As the transfer car 18 moves, a guide carriage 32 (not shown) connected thereto moves, and an unlocking guide 37 and an arm moving guide 38 fixed thereto move to the right.

  In FIG. 12, the swivel arm 22 is in the open position F in (A) and is in the holding position H in (D). In (B) and (C), the turning arm 22 is at an intermediate position between the open position F and the holding position H.

In (A), the lock release guide 37 is engaged with the stopper plate 25a to release the lock device 24. Further, the parallel guide portion 38b is in contact with the arm roller 23b and holds the turning arm 22 in the open position F.
Next, while the arm roller 23b is in contact with the inclined guide portion 38a by the urging force of the turning urging device 23a, the turning arm 22 is moved from the open position F to the holding position H as shown in (B), (C), and (D). Move up.
Next, when the lock release guide 37 passes, the stopper plate 25a described above returns to the fixed position L by the urging force of the weight 25c, and the swivel arm 22 is fixed to the holding position H.

  With the above-described configuration, the swing arm 22 can be moved from the open position F to the holding position H by the arm moving guide 38 and the swing arm 22 can be fixed to the holding position H by the lock device 24 by the travel of the guide carriage 32.

  According to the configuration of the present invention described above, the carriage main body 35 of the guide carriage 32 is connected to the transfer car 18 by the independent connection mechanism 40, so that even if the attitude of the transfer car 18 changes, it is not affected. . Further, since the carriage main body 35 is supported by the wheels 18 b running on the rails 16, the guide member 36 fixed to the carriage main body 35 is always located at a certain height from the upper surface of the rails 16.

Further, even when a plurality of transfer cars 18 travel, each guide carriage 32 follows the rail 16, so that each guide member 36 can always be held at a constant height, and no swinging occurs. The seal belt presser 20 can be opened.
Therefore, even if the posture of the transfer car 18 changes (for example, tilt), the seal belt presser 20 can be reliably opened and closed (the lock device 24 is released and the swing arm 22 is opened and closed).

  Note that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

a vertical axis, b horizontal axis, H holding position, F open position, L fixed position, U release position,
1 belt conveyor, 2 coal conveyor, 3 seal belt,
4 rails, 5 swivel arms, 6 locking devices,
7 transfer car, 7a body frame, 7b wheel, 7c guide roll,
8 guides, 10 belt conveyors,
12 endless belt, 12a feed side, 12b return side,
13 Conveyor cover, 14 Seal belt, 16 rails,
18 Transferka, 18a Body frame,
18b wheel, 18c guide roll,
19 Arm holding guide, 20 Seal belt presser, 22 Rotating arm,
23a turning urging device, 23b arm roller, 24 lock device,
25a Stopper plate, 25b Release striker, 25c Weight,
30 seal belt presser opening and closing device, 32 guide carriage,
34 wheels, 34a first wheel, 34b second wheel, 34c third wheel,
35 bogie body, 35a first horizontal member, 35b second horizontal member,
35c third horizontal member, 35d auxiliary member,
36 guide members, 37 unlocking guides,
38 arm movement guide, 38a inclined guide part, 38b parallel guide part,
40 Independent connection mechanism, 41 Vertical pin, 42 Horizontal plate, 42a Slot

Claims (9)

Along the endless belt, a seal belt placed horizontally on the upper surface thereof, a pair of rails horizontally installed on the outer side in the width direction of the seal belt, and a part of the seal belt that is partially lifted to run on the rail A seal belt press opening and closing device of a belt conveyor, comprising: a transfer car that performs the above-described transfer, and a seal belt press that prevents the seal belt from being swung upward.
The seal belt presser opening and closing device includes a pair of guide carriages that are connected in front and rear in the traveling direction of the transfer car and move together therewith,
Each guide carriage includes a wheel that travels on the rail, a carriage body supported by the wheel, and a guide member that is fixed to the carriage body and opens and closes the seal belt presser,
The seal belt presser opening and closing device, wherein the carriage main body and the transfer car are connected to each other by an independent connection mechanism capable of traveling independently in the vertical direction and the width direction. The independent connection mechanism includes a pair of vertical pins provided on one of the cart body and the transfer car,
A pair of horizontal plates having elongated holes extending vertically through the vertical pins, the horizontal plates being fixed to the other of the carriage body and the transfer car,
The elongated hole has a gap between the vertical pin and the vertical pin so that the bogie body can run independently by the rail even if the posture of the transfer car changes due to the undulation of the rail. The seal belt presser opening and closing device according to claim 1. The bogie main body extends horizontally in the direction of separating from the transferer along one of the rails from one end of the first horizontal member, extending horizontally in the width direction adjacent to the transferer. A second horizontal member, and a third horizontal member that connects the tip of the second horizontal member and the other end of the first horizontal member and extends horizontally in an oblique direction with respect to the rail,
The seal belt presser opening and closing device according to claim 1, wherein the first horizontal member, the second horizontal member, and the third horizontal member form a triangle in plan view.   The wheels include a first wheel and a second wheel that are arranged at intervals along one of the rails and guided by the rail, and a third wheel that is arranged on the other side of the rail and guided by the rail. The seal belt presser opening and closing device according to claim 1, wherein The seal belt presser is a swivel arm that can be swiveled horizontally between a holding position that is located above the seal belt and prevents its curling and an open position that is disengaged from the top of the seal belt; and A locking device that releasably secures the holding position;
The said guide member has an unlocking guide which cancels | releases the said locking device, and an arm movement guide which moves the said turning arm between the said holding | maintenance position and the said open | release position, The Claim 1 characterized by the above-mentioned. Seal belt presser opening and closing device. The swivel arm has a swivel biasing device that supports a distal end of the swivel arm so as to swivel from the open position to the holding position, and an arm that is attached to an upper surface of an intermediate position of the swivel arm and rotates freely about a vertical axis A roller, and
The said arm movement guide is fixed to the said trolley | bogie main body, contacts the said arm roller by the driving | running | working, and moves the said turning arm between the said holding | maintenance position and the said open | release position. Seal belt presser opening and closing device.   The arm movement guide is positioned horizontally and tilted with respect to the rail, and the tilt guide portion moves the arm roller between the holding position and the release position, and is positioned horizontally and parallel to the rail and swivels. The seal belt presser opening and closing device according to claim 6, further comprising: a parallel guide portion that holds the arm in the open position.   The transfer carrier has an arm holding guide positioned between the pair of parallel guide portions and parallel to the rail, and the arm holding guide contacts the arm roller to release the swivel arm. The seal belt presser opening and closing device according to claim 7, wherein the seal belt presser opening and closing device is held at a position. The lock device includes a pair of stopper plates that fix the swivel arm to the holding position so that the swivel arm is unrotatable with the distal end portion of the swivel arm being spaced apart in the rotation direction.
The stopper plate is configured to be swingable about a horizontal axis, one end of which is biased to a fixed position sandwiching the tip of the swivel arm, and the stopper plate is moved from the fixed position to the released position. Have a release striker to move,
The seal belt presser opening and closing device according to claim 5, wherein the lock release guide is fixed to the carriage main body, and is moved to contact the release striker and moves to the release position.

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