JP2008127176A - Belt cleaner device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a belt cleaner device having a simple structure, easily maintained and inspected, and providing excellent followability of a scraping member to a belt. <P>SOLUTION: This belt cleaner device includes: a fixed base 12 arranged below the belt 11; a guide member 13 attached to the fixed base 12 and having at least one end projecting in the width direction of the belt 11; a movable base 14 guided by the guide member 13 to move in the width direction of the belt 11; and the scraping members 40 attached side by side to the movable base 14 through a supporting member 31 and in contact with the lower surface of the belt 11. Each scraping member 40 has: a columnar portion supported movably upward and downward by fitting the tip end of the supporting member 31 therein; a scraping tip removably connected to the upper part of the columnar portion and gradually reduced in thickness of its tip portion; and an elastic member pressing the scraping tip to the lower surface of the belt 11 and having a lower portion mounted on the top of the supporting member 31. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a belt cleaner device that removes deposits on a belt of a belt conveyor, and more specifically, a belt that is simple in structure, easy to maintain and inspected, and excellent in tracking of a scraping member to the belt. The present invention relates to a cleaner device.

In a thermal power plant, a steel mill, a chemical plant, a sewage treatment plant, a waste disposal plant, and the like, a belt conveyor that conveys various raw materials, fuels, treated materials, wastes, and the like is used. In this belt conveyor, a belt having a predetermined width is wound endlessly (endless) between a driving pulley and a driven pulley, and the driving pulley is rotated to rotate the belt.
When transporting the transported object on the belt conveyor, if the transported object that has not been withdrawn at the reversing part is transported to the backward movement side while adhering to the belt, a loss may occur and cause a decrease in transport efficiency, This may cause belt meandering, which is not preferable for safety.
Therefore, a belt cleaner device that mechanically scrapes off deposits on the belt by a scraping member (scraper) or the like brought into pressure contact with the belt surface after dropping the conveyed product is conventionally provided on the belt conveyor.

In general, a belt of a belt conveyor is supported by a guide roller so as to be curved downward and convex on the forward movement side in order to stably load a laminate. For this reason, the belt becomes curved as it is repeatedly loaded, and is not corrected by gravity on the backward movement side, but the forward curve is reversed as it is and is convex upward. In order to efficiently remove the deposits on the belt with such a curved wrinkle, it is necessary to press the upper end of the scraper against the belt surface without any gap at any position of the belt.

Therefore, a belt configured to align a plurality of scraping members divided in the width direction of the belt and to press these against the belt so that the scraping member is uniformly pressed over the belt width direction. A cleaner device has been proposed. For example, Patent Document 1 includes a plurality of cleaner units arranged in the width direction of the conveyor belt and pressure generating means for supporting the plurality of cleaner units, and the pressure generating means is provided for each of the plurality of cleaner units. A plurality of support portions engaged with the operation portions of each scraper so as to move integrally with the advance and retreat operation of the scraper, a pressure passage interconnecting the plurality of support portions, and a fluid filled in the pressure passage A belt cleaner device is disclosed. Further, Patent Document 2 includes a scraper blade and an elastic body that urges the blade to press against the belt surface, the elastic body having at least one spring element, and a plurality of the spring elements overlapped. A belt cleaner constituted by a flat spring is disclosed.

JP 2001-10716 A JP 2002-46851 A

However, all of the conventional belt cleaner apparatuses are expensive because of their complicated structures, and it takes time to replace the scraping member and maintain the apparatus.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a belt cleaner device that has a simple structure, is easy to perform maintenance and inspection, and is excellent in followability of the scraping member to the belt.

A belt cleaner device according to the present invention that meets the above-described object is provided with a fixed base disposed at a lower portion of a belt, a guide member that is attached to the fixed base and has at least one end protruding in the width direction of the belt, A movable frame that is guided by a guide member and is movable in the width direction of the belt; and a scraping member that is attached to the movable frame side by side through a support member and contacts a lower surface of the belt. A columnar part that is supported so as to be movable up and down with the tip of the support member inserted therein, and a scraping tip that is detachably connected to the upper part of the columnar part and the thickness of the tip is gradually reduced. And a lower part of the support member attached to the top of the support member, and an elastic member that presses the scraping tip connected to the columnar part against the lower surface of the belt.

In the belt cleaner device according to the present invention, the connected columnar portion and the scraping tip are formed with a hollow portion communicating from a bottom portion to an intermediate portion of the scraping member, and the upper portion of the support member and the elastic member are , May be disposed in the cavity.

In the belt cleaner apparatus according to the present invention, it is preferable that the scraping tip is made of hard ceramic or cemented carbide, and the columnar portion is made of steel or hard resin.

In the belt cleaner apparatus according to the present invention, each of the support members may be fixed to an elevating gantry arranged on the movable gantry via an elevating means so as to be vertically adjustable.

In the belt cleaner apparatus according to the present invention, the scraping members may be arranged in a line at equal intervals in the width direction of the belt.

In the belt cleaner apparatus according to the present invention, the scraping tip of the scraping member has a protruding portion in the width direction of the belt, and the upper end of the scraping tip has no gap in the width direction of the belt. You may touch the side.

In the belt cleaner apparatus according to the present invention, the scraping members may be arranged in a plurality of rows and zigzags in the width direction of the belt.

In the belt cleaner apparatus according to the present invention, the movable frame may be movable along the guide member to the outside in the width direction of the belt.

In the belt cleaner apparatus according to the present invention, the scraping member may be supported so as not to rotate with respect to the support member.

The belt cleaner device according to any one of claims 1 to 9, wherein the scraping member mounted side by side on the movable frame has a columnar portion that is supported so that the tip portion of the support member is fitted and movable up and down, and an upper portion of the columnar portion. A scraping tip that is connected and the thickness of the tip portion gradually decreases, and an elastic member that has a lower portion attached to the top of the support member and presses the scraping tip connected to the columnar portion against the lower surface of the belt. Therefore, the scraping tip can be pressed uniformly over the width direction of the belt, and deposits on the belt can be reliably removed regardless of belt curl and uneven wear of the scraping tip. it can.
Further, in the scraping member, the scraping tip is detachably connected to the upper part of the columnar portion, so that when the scraping tip is worn, it is not necessary to replace the entire scraping member, thereby reducing the operating cost. be able to.

3. The belt cleaner according to claim 2, wherein the connected columnar portion and the scraping tip are formed with a hollow portion communicating from the bottom portion to an intermediate portion of the scraping member, and the upper portion of the support member and the elastic member are disposed in the hollow portion. Since it is arranged, the scraping member can be easily attached / detached and replaced, and since the structure is simple, it can be manufactured at low cost and has high reliability.
Furthermore, since the elastic member that presses the scraping tip against the lower surface of the belt is disposed in the cavity of the scraping member, there is a low risk of clogging or the like due to the deposits scraped from the belt surface.

In the belt cleaner device according to the third aspect, the scraping tip is made of hard ceramic or cemented carbide, and the columnar portion is made of steel or hard resin, so that only the scraping tip worn by use can be replaced. Therefore, the usage amount of expensive hard ceramics or cemented carbide can be reduced, and the operating cost can be reduced.

In the belt cleaner device according to the fourth aspect, each support member is fixed to the movable gantry so that it can be adjusted up and down via the elevating means. Work such as replacement of the take-up member can be easily performed and the pressing force of the scraping tip to the belt lower surface can be adjusted.

In the belt cleaner device according to the fifth aspect, since the scraping members are arranged in a line at equal intervals in the width direction of the belt, the structure is simple and the size can be easily reduced.

In the belt cleaner device according to claim 6, the scraping tip of the scraping member has a protruding portion in the belt width direction, and the upper end of the scraping tip is in contact with the lower surface side of the belt without any gap in the belt width direction. Therefore, the deposits on the belt can be efficiently scraped off.

In the belt cleaner device according to claim 7, since the scraping members are arranged in a plurality of rows and staggered in the width direction of the belt, the attachment on the belt remaining in the portion corresponding to the gap of the scraping member in the first row is arranged. The kimono can be reliably removed by the second and subsequent scraping members. Therefore, even if the number of scraping members per row is reduced, the deposits can be reliably removed.

In the belt cleaner device according to claim 8, since the movable frame is movable to the outside in the belt width direction along the guide member, the belt cleaner device is pulled out from the lower part of the belt conveyor to replace the scraping member. Etc. can be performed. Therefore, workability is good and there is no risk of accidents such as entanglement even if the belt conveyor malfunctions during work.

In the belt cleaner device according to claim 9, since the scraping member is supported so as not to rotate with respect to the support member, the direction of the scraping tip is kept constant even if a rotational force is applied to the scraping member. . Therefore, the scraping performance can be kept constant and the trouble of adjusting the direction of the scraping tip can be saved.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 is a front sectional view of a belt cleaner device according to a first embodiment of the present invention, FIG. 2 is a partially cutaway side view of the belt cleaner device, and FIG. 3 is scraping in the belt cleaner device. 4 is an explanatory view showing an arrangement state of the scraping member of the belt cleaner device, FIG. 5A is a sectional view of the scraping member according to the modification, and FIG. 5B is the modification. FIG. 6 is a front sectional view of a belt cleaner device according to a second embodiment of the present invention, and FIG. 7 is a state of arrangement of the scraping member of the belt cleaner device. It is explanatory drawing shown.

With reference to FIGS. 1-4, the belt cleaner apparatus 10 which concerns on the 1st Embodiment of this invention is demonstrated.
The belt cleaner device 10 is a device that is disposed on the return side (return side) of the belt conveyor, and abuts against the lower surface of the belt 11 on the return side to remove deposits.
As shown in FIGS. 1 and 2, the belt cleaner device 10 includes a fixed base 12, a rail 13 that is an example of a guide member attached to the fixed base 12, a movable base 14 that can move on the rail 13, It has a scraping member 40 which is attached to the movable mount 14 side by side with a support member 31 and is in contact with the lower surface of the belt 11.

The fixed base 12 is disposed below the belt 11, and a rail 13 is attached thereon. The rail 13 is attached in the width direction of the belt 11, and one end thereof is disposed so as to protrude from the width direction of the belt 11.
The movable gantry 14 has a U-shaped cross section having a U-shaped cross section and an opening portion facing upward, and a wheel mounted on the lower surface thereof by a traveling wheel mounting member 15 and an axle 16. 17, and is arranged so as to be movable to the outside in the width direction of the belt 11 by being guided by the rail 13 through the wheel 17.
An elevating gantry 19 is arranged on the upper part of the movable gantry 14 via a pantograph jack 18 which is an example of an elevating means so as to be vertically adjustable. On the upper part of the lifting platform 19, the scraping members 40 are arranged in a line at equal intervals in the width direction of the belt 11 via the support members 31.
The fixed gantry 12 is provided with overturn prevention guides 50 on both sides of the movable gantry 14 and the lifting platform 19 for preventing the movable platform 14 and the lifting platform 19 from falling due to a force acting in the traveling direction of the belt 11. ing. On both sides of the upper surface of the lifting platform 19, dust covers 62 are provided to cover the movable platform 14, the lifting platform 19, and the overturn prevention guide 50, and prevent them from being damaged.

The lifting frame 19 is made of a steel having a U-shaped cross section, and both the lifting frame lower frame 20 and the lifting frame upper frame 24 whose openings are arranged in parallel facing downward, and connecting members for connecting them. 28 and a cover 29 that covers both ends. The connecting member 28 is formed to join the ends of the rectangular lower plate 25, the two vertical plates 26 and the upper plate 27 to form a rectangular frame shape, and the lower plate 25 and the lifting frame lower frame 20, The upper plate 27 and the opening end of the lift frame upper frame 24 are joined to each other to connect the lift frame lower frame 20 and the lift frame upper frame 24.
Bolt holes are provided in the side wall surface of the lifting frame lower frame 20, and the lifting frame lower frame 20 is pantographed via long bolts 21 and nuts 22 attached so as to penetrate the bolt holes on both side wall surfaces. It is fixed to the jack 18. By rotating the rotation 23 of the pantograph jack 18, the lifting platform 19 can be moved up and down on the moving platform 14.
Bolt holes for standing and fixing the columnar support members 31 in a line along the width direction of the belt 11 are formed on the upper surface of the lifting frame upper frame 24, and the positions are engaged with the individual bolt holes. A support member receiver 30 provided with a bolt hole is fixed. The bolt 33 provided on the bottom of the support member 31 is inserted into the bolt holes of the lift frame upper frame 24 and the support member receiver 30 and fastened and fixed with nuts 34 so that the support member 31 is fixed to the top of the lift frame upper frame 24. Be placed.

As shown in FIGS. 1 to 3, the scraping member 40 is removably coupled to a columnar part 41 that is supported so that the tip of the support member 31 fits in and moves up and down, and an upper part of the columnar part 41. The scraping tip 42 in which the thickness of the tip portion is gradually reduced, and the lower portion of the step 32 provided on the top portion of the support member 31 are attached, and the scraping tip 42 is pressed against the lower surface of the belt 11. And a compression coil spring 43 which is an example of a member.
The columnar portion 41 and the scraping tip 42 connected to each other are formed with a cylindrical hollow portion 43a that communicates from the bottom of the columnar portion 41 to the intermediate portion of the scraping member 40. The upper portion of the support member 31 and the compression coil spring 43 are These are disposed in the hollow portion 43a. In the present embodiment, the cavity 43 a is formed so as to penetrate the columnar part 41 and reach the scraping tip 42. However, when the length of the columnar part 41 is sufficiently larger than the support member 31. The hollow portion may be provided only inside the columnar portion 41. In this case, since the pressing force by the compression coil spring 43 is not directly applied to the bottom portion of the scraping tip 42, it is possible to make it difficult to remove the scraping tip 42 from the columnar portion 41.
Alternatively, a key groove may be provided on one of the support member 31 and the scraping member 40, and a key may be provided on the other so that the scraping member 40 is supported on the support member 31 so as not to rotate.
Since the tip portion of the scraping tip 42 is formed so that the thickness gradually decreases toward the center thereof, the deposit can be removed in both cases where the belt conveyor is rotated forward and reversely. . Moreover, since the flat part 44 is provided in the upper end of the scraping chip | tip 42, there is little possibility of damaging the belt 11 when an excessive pressing force is added.
Examples of the material used for the columnar portion 41 include steel and hard resin. Examples of the material used for the scraping tip 42 include ceramics such as alumina, silicon nitride, and zirconia that have both wear resistance and hardness, and cemented carbide.

Next, the arrangement of the scraping member 40 will be described with reference to FIGS. 2 and 4.
As shown in FIG. 2, the scraping member 40 is disposed only near the center of the belt 11. The forward belt 11 that transports the load is held in a curved state by a guide roller (not shown) so that both ends are bent upward and the center is convex downward, and mainly supports the load near the center. Therefore, the conveyed object is difficult to adhere to the vicinity of the end of the belt 11 in the width direction, and in the event that the belt meanders, the scraping member separated from the belt surface near the end is attached with an elastic member. This is because the belt conveyor needs to be stopped in order to pop out due to the force and return to the normal position.

FIG. 4 shows an arrangement state of the scraping member 40 in plan view. The scraping members 40 are arranged with a gap so as to be arranged in a line in the width direction of the belt 11. In order to reduce the amount of deposits remaining on the belt 11 without being scraped off, it is preferable that the gap is as narrow as possible. However, the scraped deposits fill the gap and the individual scraping members 40 are independent. It is preferable that the gap has a certain size so that the belt 11 cannot be tracked.
A preferable interval between the scraping members 40 is 0.5 to 5 mm.
In order for the upper end of the scraping tip to contact the width direction of the belt 11 without a gap, as shown in FIGS. 5A and 5B, a scraping tip 42a having a protruding portion 42b in the width direction of the belt 11 is provided. The scraping member 40a provided may be used.

Next, the fall prevention guide 50 will be described with reference to FIGS. 1 and 2.
The fall prevention guides 50 arranged on both sides of the movable stand 14 and the lift stand 19 are fixed to the top of the fall prevention guide leg portion 51 and the fall prevention guide leg portion 51 arranged on the fixed stand 12. Guide plates that are supported in parallel by the guide plate support portions 52, the overturn prevention guide legs 51, and the guide plate support portions 52 that are disposed in parallel on both sides of the lifting platform 19, and that are disposed in parallel on both sides of the movable platform 14 and the lifting platform 19. 53.
A guide wheel mounting plate 55 is attached to the lower plate 25 and the upper plate 27 of the lifting platform 19 by a bolt 56, and the guide wheel 54 is rotated by a bolt 57 and a nut 58 at the tip of the guide wheel mounting plate 55. The movable gantry 14 and the lifting gantry 19 are in contact with the guide plate 53 via the guide wheels 54, and are movably fastened and fixed. The moving gantry 14 and the lifting gantry are caused by the force acting in the traveling direction of the belt 11. 19 is prevented from falling.

A stopper plate 59 for fixing the moving base 14 and the lifting base 19 is joined to one end of the opposing guide plate support 52. The stopper plate 59 and the cover 29 on the side in contact with the stopper plate are provided with bolt holes that communicate with each other in the contact state. In addition, the movable frame 14 and the lifting frame 19 are fixed at correct positions, and the traveling wheels 17 are prevented from rotating along the rails 13 by rotating the traveling wheels 17.
When exchanging the scraping member 40, etc., the bolt 60 and the nut 61 are removed to disengage the stopper plate 59 and the one cover 29, so that the movable base 14 and the lift base are moved along the rail 13. 19 can be moved so as to protrude in the width direction of the belt 11. The movement may be performed manually, or may be self-propelled by providing a self-propelled means (not shown) and rotating the traveling wheel 17 (and the guide wheel 54).

Next, a belt cleaner apparatus 110 according to a second embodiment of the present invention will be described with reference to FIGS. In addition, about the part same as the belt cleaner apparatus 10 which concerns on the 1st Embodiment of this invention, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

As shown in FIG. 6, bolt holes for vertically fixing the columnar support members 31 in two rows along the width direction of the belt 11 are formed in the upper surface of the lifting frame upper frame 24. The support member receiver 30 provided with bolt holes is fixed at positions where the bolt holes are engaged with each other.
FIG. 7 shows an arrangement state of the scraping member 40 in a plan view of the lifting frame upper frame 24. On the lift frame upper frame 24, the support members 31 are erected in two rows and staggered (alternately). For this reason, the trajectory of each scraping member 40 sweeping on the belt 11 covers the vicinity of the center of the belt 11 without a gap, so that the deposits on the belt 11 remaining in the portion corresponding to the gap of the scraping member 40 in the first row are removed. It can be reliably removed by the scraping member 40 in the second row.
As shown in FIG. 7, when the distance between the scraping members 40 adjacent to each other in the width direction of the belt 11 is d and the length of the bottom side parallel to the width direction of the belt 11 is a, the above condition is satisfied. The interval d of the scraping member 40 may be set so that the relationship d <a is established. Further, when a rotational force is applied to the scraping member 40, the interval of the scraping member 40 is set so that the corner of the scraping member 40 interferes with the scraping member 40 adjacent in the width direction or the running direction of the belt 11. As a result, the scraping member 40 rotates and the direction of the scraping tip 42 is deviated from the width direction of the belt 11, so that it is possible to prevent the deposit removal efficiency from being lowered.

The present invention is not limited to the above-described embodiments, and can be changed without changing the gist of the present invention. For example, some or all of the above-described embodiments and modifications are possible. The belt cleaner device of the present invention is configured by combining the above, and is also included in the scope of the right of the present invention.
For example, in the above embodiment, the hollow portions of the support member and the scraping member have a circular cross section, but may have a rectangular cross section, other polygonal shapes, or an elliptical shape in order to prevent the scraping member from rotating. Furthermore, in the said embodiment, although the supporting member was arrange | positioned in a line along the width direction of a belt on a raising / lowering stand, or 2 rows and zigzag form, you may arrange | position in 3 or more rows and zigzag form.

It is a front sectional view of a belt cleaner device concerning a 1st embodiment of the present invention. It is a partially cutaway side view of the belt cleaner apparatus. It is sectional drawing of the scraping member of the belt cleaner apparatus. It is explanatory drawing which shows the state of arrangement | positioning of the scraping member of the belt cleaner apparatus. (A) is sectional drawing of the scraping member which concerns on a modification, (B) is explanatory drawing which shows the arrangement | positioning state of the scraping member which concerns on a modification. It is a front sectional view of a belt cleaner device concerning a 2nd embodiment of the present invention. It is explanatory drawing which shows the state of arrangement | positioning of the scraping member of the belt cleaner apparatus.

Explanation of symbols

10: Belt cleaner device, 11: Belt, 12: Fixed mount, 13: Rail, 14: Moving mount, 14a: Underframe, 15: Traveling wheel mounting member, 16: Axle, 17: Wheel, 18: Pantograph jack, 19 : Lifting frame, 20: Lifting frame lower frame, 21: Long bolt, 22: Nut, 23: Rotation, 24: Lifting frame upper frame, 25: Lower plate, 26: Vertical plate, 27: Upper plate, 28: Connection Member: 29: cover, 30: support member receiver, 31: support member, 32: stepped portion, 33: bolt, 34: nut, 40, 40a: scraping member, 41: columnar portion, 42, 42a: scraping tip 42b: protrusion, 43: compression coil spring, 43a: cavity, 44: flat part, 50: fall prevention guide, 51: fall prevention guide leg, 52: guide plate support part, 53: guide plate, 54: Guide wheel, 55: Guide car Mounting plate 56: Bolt, 57: Bolt, 58: Nut, 59: stopper plate, 60: Bolt, 61: Nut, 62: dust cover, 110: belt cleaner device

Claims (9)

A fixed mount located at the bottom of the belt;
A guide member attached to the fixed base and having at least one end protruding in the width direction of the belt;
A movable frame guided by the guide member and movable in the width direction of the belt;
A scraping member attached to the movable frame side by side through a support member and in contact with the lower surface of the belt;
The scraping member is detachably connected to a columnar portion that is supported so as to be movable up and down with the tip of the support member inserted therein, and the thickness of the tip is gradually reduced. A belt cleaner device comprising: a scraping tip; and an elastic member having a lower portion attached to a top portion of the support member and pressing the scraping tip connected to the columnar portion against a lower surface of the belt. . 2. The belt cleaner device according to claim 1, wherein the connected columnar portion and the scraping tip are formed with a hollow portion communicating from a bottom portion to an intermediate portion of the scraping member, and the upper portion of the support member and the elastic member. Is disposed in the hollow portion. 3. The belt cleaner apparatus according to claim 1, wherein the scraping tip is made of hard ceramic or cemented carbide, and the columnar part is made of steel or hard resin. 4. . The belt cleaner device according to any one of claims 1 to 3, wherein each of the support members is fixed to an elevating gantry arranged on the movable gantry so as to be vertically adjustable via elevating means. A belt cleaner device. The belt cleaner apparatus of any one of Claims 1-4 WHEREIN: The said scraping member is arranged in a line at equal intervals in the width direction of the said belt, The belt cleaner apparatus characterized by the above-mentioned. 6. The belt cleaner apparatus according to claim 5, wherein the scraping tip of the scraping member has a protruding portion in the width direction of the belt, and an upper end of the scraping tip is not spaced in the width direction of the belt. A belt cleaner device in contact with the lower surface side. The belt cleaner apparatus of any one of Claims 1-4 WHEREIN: The said scraping member is arranged in multiple rows and zigzag form in the width direction of the said belt, The belt cleaner apparatus characterized by the above-mentioned. The belt cleaner apparatus of any one of Claims 1-7 WHEREIN: The said movable mount is movable to the width direction outer side of the said belt along the said guide member, The belt cleaner apparatus characterized by the above-mentioned. . The belt cleaner apparatus of any one of Claims 1-8 WHEREIN: The said scraping member is supported by the said support member so that rotation is impossible, The belt cleaner apparatus characterized by the above-mentioned.

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