JPH02239015A - Belt cleaner device - Google Patents

Abstract

PURPOSE:To enhance scraping performance by providing a blade axially in the direction of width of a belt and in such a manner as capable of adjusting its turning movement, the blade having a scraping portion formed in such a manner as being curved protrusively toward the surface of the belt. CONSTITUTION:On the return side of a conveyor belt 1, a shaft member 8 is disposed in such a manner as crossing the belt 1 and is supported to supports 2, 3 in such a manner as capable of adjusting its turning movement. A scraper 9 the center portion of which is protrusively curved outwards is attached to the shaft member 8 as described in the figure. The scraper 9 is put in a turning movement and is made to stand and a chip 22 is made to abut against the belt 1, whereby the belt 3 is curved along the chip 11 and is shaped like an arch-shaped trough and also the chip 11 is stuck to the belt 1 even when the center of the surface of the belt is abraded. Thus dust on the belt is prevented from remaining thereon and can be surely scraped off.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention removes residual deposits of conveyed materials such as coke attached to the surface of a conveyor belt. Concerning a belt cleaner device that removes the material on the return side of Shouheru. [Prior art] A conventional belt cleaner device is disclosed in U.S. Pat.
No. 42), it has a plurality of cleaner bodies arranged on the return side of the conveyor belt in the transverse direction of the belt. These cleaner bodies have scraping portions that contact the two belt surfaces in straight lines 31, . It is aligned to 2. Specifically, a scraper with a scraping section made of chisob at its upper end is elastically supported by an elastic member such as a rubber block, and the scraping section is pressed against the belt surface through the elastic deformation of this elastic member. There is. [Problems to be Solved by the Invention] In general, a conveyor belt is wound in an end L/L shape between a driving bogie and a driven bogie, and when it travels around, it carries five conveyed objects. In the forward movement process (forward side), IM. In order to stably load the conveyed goods, the belt and
It is supported so that its cross section is arch-shaped. In other words, on the forward side of the bell 1, which is loaded with Va cargo and travels forward,
The center part of the belt in the width direction is curved and supported so as to bulge downward. As mentioned above, objects are repeatedly loaded onto the center of the belt's arched surface. The belt surface has more wear in the center than on both sides. Therefore, the belt has the above-mentioned curvature (generally referred to as troughing), and on the return side where the conveyed object travels backwards in the opposite direction to the forward direction after dropping the conveyed object, the belt has a width The central portion in the direction is curved in an arch shape so as to bulge upward, and when the scraping portions of the cleaner device aligned in a straight line come into contact with the belt surface, they do not match the curved belt surface. In other words, is there a central part in the width direction between the scraping part of the cleaner device and the belt surface? A gap is formed at . This gap becomes even larger as the center of the belt wears down as described above. As a result, the scraping section of the cleaner device cannot effectively scrape off the deposits on the belt surface in the center of the belt. Moreover, the remaining deposits on the belt surface are usually large in the center of the belt and small on both sides of the belt, and the amount of deposits removed by the scraping section corresponds to this. The part located in the center of the array of scraping parts is severely worn, and the gap between the belt surface and the scraping part gradually increases. In addition, as described above, the plurality of cleaner bodies each have a scraper supported by an elastic member, and each scraper swings independently, so that when one scraper tilts. ：の：7, Seed +'-scented deposits intervene between the scraper and the adjacent scraper, and are sandwiched between both H.1 The independent rocking of this adjacent scraper causes the −}−. The scraping part is brought into pressure contact with the belt surface ζ.
[Means for Solving the Problem] The present invention provides a belt cleaner device that solves the above problems, and this belt cleaner device teeth. A scraper is provided on the return side of the conveyor belt in the transverse direction of the belt to remove residual deposits from the belt surface, and this scraper comes into contact with the belt surface.
The blade is connected to a shaft member that is rotatably adjustable about an axis that faces in the transverse direction of the belt; Gradually. Curved away from the axis “ζ
Form. When the shaft member is rotated about the axis to raise the blade, the upper edge of the blade forms an arcuate scraping portion that bulges in 14 directions. Then, rotate the scraper around the axis and raise it 20-1!1. ．． ．．
．． As mentioned above, the bow-shaped scraping part that bulges upwards by tightening the belt will cause an arch-shaped scraping part to form on the belt.
;Rare 1 year old. Even when the central part of the belt surface is worn out, the scraping part can be brought into contact with the belt surface, and the above-mentioned problem can be solved. Further, the belt cleaner device of the present invention is provided with a resilient means for rotating the shaft member in a direction that causes the blade to rise. By providing such explosive means,
If the scraping part is worn out. The scraper is automatically rotated in the upright direction, and the scraping part, which is bulging upward in an arched shape, is always in contact with the belt surface without any gaps. 〔implementation
Example] Examples of the present invention will be described in detail below based on the drawings. (Basic Embodiment) In Figures 1 to 6, the conveyor belt 1 is shown by an imaginary line (double-dot chain 'Ia), and only a portion of the return side is shown. ．． In an endless belt that runs around the driving and driven boots. This is a term for the forward side, which is loaded with a transported object and travels in a forward direction until the transported object is dropped.
After the conveyed item has fallen, the upper part of the boot is folded back at the hanging part,
This refers to the part of the return process in which the vehicle travels backwards in the opposite direction to the forward direction. Therefore, the process that is located on the boo immediately after passing the turning point is also included. On the return side of the bell L, both sides of the belt {! ! I
A pair of supports 2.3 are fixed to I. One support 2 consists of a conveyor frame (not shown) or a column 4 erected from the ground, and a support plate 5 attached to the column.
It has The other support 3 is. It has a support stand 6 fixed to the frame of the conveyor or a support bar (none of which is shown) below the belt, and a support plate 7 attached to the support stand 6. A cylindrical bar 8 constituting a shaft member is rotatably installed on the support 5.7 of the pair of supports 2.3. That is, the support plate 5.7 forms a bearing for the bar 8.
The axis of rotation of the bar 8 is an axis A that crosses the belt i.
This bar 8 is provided with a scraper 9, as shown in FIG. It is curved into an almost arched shape so as to bulge out in the return running direction R of the belt 1, and includes a blade 1 (13). In the example,
A chip 11 is attached to the blade 10. Chisob 11
teeth. Made of wear-resistant material such as cemented carbide or ceramics.
As shown in FIG. 4, it is fixed to the upper end of the blade 10 on the curved inner surface of the blade by screwing or brazing. Both ends of the scraper 9 are removably attached to brackets 12 , 12 erected on the circumferential surface of the bar 8 , so that the blade 10 with the five tip knobs 11 extends from both sides of the belt 1 to the center. It gradually curves away from the axis vAA, as shown in FIGS. 5 and 6. When the bar 8 is rotated eight times around the axis to raise the scraper 9, the blade 10 has an arcuate shape with its central portion bulging upward. Scraping part No. 13 where Nasob II on the L edge contacts along the surface of Hell 1 and 1. Configure. The shaft &'AA constituted by the harness 8 can be placed below the belt 1 as shown in the fifth figure, or above the belt 1 as shown in the seventh figure. In the latter case, not only when the belt 1 runs in the return direction R,
Even when traveling in the forward direction F, the scraping part 13 of the scraper 9 does not bite into the belt surface and the belt is not damaged. As shown in Figure 3. An outer cylindrical member 14 is fitted onto the protruding end of the bar 8 that protrudes through the support plate 5 of one of the supports 2, and is fixed by a fixed stage 15 such as a cent bolt. A receiving plate 16 is provided on the circumferential surface of the outer cylinder member 14 in the radial direction.
is extended, and an explosive means 17 is attached to the transfer plate 16. In this example. The springing means 17 consists of leaf springs, each of which has three types of leaf springs 1 of different lengths.
7a, 17b, 17e are sequentially stacked on the receiving plate 16, and a fixing device 18 such as a bolt or nant is attached at the extended end of the receiving plate 16.
Due to ~ physical fixation. ing. The longest leaf spring 17a
The other end is a holder 1 detachably attached to the support plate 5.
It is held by 9. In the example shown, 1 support plate 5. A holder 19 is inserted into one of a plurality of holding holes 20 which are located at intervals along an arc line centered on the axis A. The retainer 19 can be a U-shaped or J-shaped bolt. By inserting the holder 19 into a predetermined holding hole 20 and holding the leaf spring 17a with the holder 19. The bar 8 is always urged to rotate in the direction of raising the scraper 9 and presses the scraping part 13 against the surface of the belt 1. (Another embodiment of the scraper mechanism) Figure 8 shows. 1 shows another embodiment for supporting a scraper about an axis pointing in the transverse direction of the belt, the scraper 9 having a blade 1 (13) curved in an approximately arcuate manner;
A chip 11 is fixed to the upper edge of the blade, and in this point it is similar to that shown in FIG. Support plates 5 each support the support shafts 8a and 3b.
．． It is rotatably supported on the shaft. Therefore, both support shafts 3a
, 3h constitute a shaft member 8, and its concave axis constitutes an axis A extending in the transverse direction of the belt. Figure 9 is. This shows an embodiment in which scrapers are arranged in duplicate, and includes a first scraper 9a and a second scraper 9b. These scrapers 9a and 9b are both configured to include blades. The second scraper 9b. Support shafts 3a and 8b constituting shaft members are provided at both ends, and the support shafts 8a. 8b is rotatably supported on support plates 5 and 7. This constitutes an axis A pointing in the transverse direction of the belt. The first scraper 9a has both ends attached to the second scraper 9b with adjusting and fixing means 8 such as bolts and nuts.
c, 8a and is rotatably supported. Therefore. The bolts of the adjustable and fixed steps 8c and 8d constitute an axis Aa that faces in the transverse direction of the belt, and the first scraper 9a is supported so as to be rotatable and adjustable around the axis Aa. In this embodiment, by rotating the second scraper 9b around the axis A, the scraping portion 13b of the second scraper 9b is brought into contact with the surface of the belt 1, and the first scraper 1 is brought into contact with the surface of the belt 1. 9a is rotated to stand up about the axis vAAa, and the scraping portion 13a of the first scraper 9a is brought into contact with the surface of the belt 1. Due to this. belt l
When the belt runs in the return running direction R, the deposits on the belt surface are double scraped by the scraping part 13a of the first scraper 9a and the scraping part 13b of the second scraper 9b. ．． Clean the belt surface. Figure 10 shows a combination of the scraper of the present invention and a conventionally known belt cleaner to perform double scraping. The scraper 9 is supported by a shaft member (bar) 8 that crosses the belt, similar to the embodiment shown in FIG. A conventionally known belt cleaner 46 is installed on the bar 8. Known belt cleaner 46
as. The above-mentioned Utility Model Publication No. 52-28308 (corresponding foreign patent: U.S. Patent No. 384 1.4 7 Q,
Australian Patent No. 449142) can be adopted. Alternatively, it is also possible to adopt a device that sprays a fluid such as water onto the belt surface and uses the spray pressure to wipe away the deposits on the belt surface. (Other Embodiments of Scraper) Section tllm shows another embodiment of the scraper 9. The scraper 9 has a blade 10 and a blade 1.
A chip 11 is fixed to one side at the upper end of the . It consists of a groove-shaped holder 21 that holds the blade 1 (13). The groove-shaped holder 2l is curved in an arched shape similar to the scraper 9 shown in FIG.
Both ends of 1 are rotatably supported around an axis A pointing in the transverse direction of the belt. The base of the blade 10 is inserted into the groove of this groove-shaped holder 21 and fixed therein. Therefore, the blade 10 with the tip 11. Although it may be formed into an elongated arc shape that fits in the groove-shaped holder 21 as in the embodiment shown in FIG. They may be installed in series and inserted and fixed. Figure 12 is. Still another embodiment of the scraper 9 is shown. Scraper 9 pa. Consists of ceramic plates, metal plates, high hardness rubber plates, etc. Scraper 9 shown in its entirety in Figure 1
It is formed into a blade shape that is curved into an arch. Both ends of the scraper 9 are rotatably supported around an axis &'lA pointing in the transverse direction of the belt. This scraper 9 does not have a separate tip as described above, and the upper end of the scraper 9 itself constitutes a scraping portion 13. (Other embodiments of the explosive means) Figures 13 to 17 each show other embodiments of the explosive means l7. In the example of FIG. An arm 22 is provided extending from the peripheral surface of a rotatable bar 8 supporting the scraper 9 beyond the scraper 9. A lever 24 supported on a shaft 23 so as to be movable 12 times is arranged above the arm 22, and one end of the lever 24 and the end of the arm 22 are connected by a connecting member 25 such as a coil spring. Lever 24
A weight 25 is attached to the other end. Like the arrow shown. By rotating and biasing the lever 24 in the counterclockwise direction, the arm 22 is biased in the lifting direction via the connecting member 25. This urges the scraper 9 in the upright direction so that the scraping part is always pressed against the belt surface. Preferably, the weight 25 is adjustable in the axial direction of the lever 24 via a position adjusting means 26 such as a screw. In the embodiment shown in FIG. 14, an arm 27 is provided vertically on the rotatable bar 8 that supports the scraper 9, and a coil spring 28 is provided that springs the arm 27 and urges the bar 8 in a counterclockwise direction. ing. The spring 28 is held in a holding cylinder 29, into which a rond 3 (13) that presses one end of the spring 28 is inserted. This iron 30 is screwed into the holding base 3l so that it can move forward and backward. In the embodiment of FIG. An arm 32 projects from the rotatable bar 8 that supports the scraper 9, and the arm 32 is inserted into the working chamber member 33. An expandable bag 34 is disposed above the arm 32 within the working chamber member 33, and fluid from a bomb 35 is supplied to the bathog 34. Therefore, when the bag 34 is expanded by filling with fluid, the bar 8 can be rotated counterclockwise by pushing down the arm 32. Since fluid pressure from the bomb 35 is acting on the bang 34, the two bars 8 are always urged to rotate counterclockwise. In the embodiment shown in FIG. 16, the support shaft 8b that supports the scraper 9 is divided into a shaft 8e and a shaft 8f. Both split shafts 8e
, 8f are connected via an elastic member 8g such as a rubber block. The shaft 8f located at the end is fixed to the support S so that its rotational position can be adjusted. Therefore, by adjusting the rotational mounting position of the shaft 8f with respect to the support 3. The scraper 9 is in a rotating upright position, and the scraping part 13 is pressed against the belt surface with the elastic member 8g twisted and deformed. Therefore, the scraper 9 is rotatable about the twisting center of the elastic member 8g as the axis A, and moreover. The elastic member 8g is always urged to come into pressure contact with the belt surface due to its elasticity. In the example of FIG. The scraper 9 is not attached to the bar as described above. Both ends of the scraper 9 are supported by support members 3
6, and the supporting member 36 is fixed to the mounting plate 37 via an elastic member 38 such as a rubber block. The mounting plate 37 is. It is attached to a bracket 40 installed vertically on the frame 39. The frame 39 is supported by pillars, etc., and can be rotated freely and fixed at the correct position. Therefore, if the mounting plate 37 is fixed in an inclined position by adjusting the position in the rotating direction of the frame 39, the scraper 9 will be in contact with the belt surface in a state in which the elastic member 38 is elastically deformed. In other words, in this embodiment, the elastic member 38 includes an axis A, and the scraper 9 rotates around this axis A. can do. (Embodiment without explosive means) In the embodiment shown in FIG. The device of the present invention is not equipped with the above-mentioned firing means. An arm 41 projects from the rotatable bar 8 that supports the scraper 9, and the arm 4l is connected to a forward/backward adjustment member 43 via a joint 42. The forward/backward adjusting member 43 is made of, for example, a bolt screwed into a nut 45 fixed to the base 44, and can be adjusted to move forward/backward in the axial direction through a screw connection. Fitting 4
2 transmits the motion of the forward/backward adjusting member 43 to the arm 4l. When the advance/retreat adjustment member 43 is screwed forward. Bar 8 is rotated counterclockwise. Press the scraping part of the scraper 9 against the belt surface. Therefore. The scraping section scrapes and removes any remaining deposits on the belt surface. When the scraping part is worn and a gap is created between the scraping part and the belt surface. Screw the advance/retreat adjustment member 43 to remove the arcuate scraping portion 1. The scraping portion may be brought into contact with the curved surface of the belt. In the present invention. Since the arched scraping part conforms to and contacts the belt surface, which has an arched cross section, no particular pressure is required to bring the scraping part into strong contact with the belt surface. Therefore, the desired scraping effect can be fully expected even without providing an elastic step as in the embodiment shown in Fig. 18. As shown in Figure 1. When the scraper 9 is arranged so as to bulge out in an arch shape toward the return running direction R of the belt 1.
Remaining residue on the belt surface: 4=1 When the kimono is scraped off, the scraped matter scraped near both ends of the scraper bar 9 is collected in the center as the belt advances. It becomes a lump and falls into the hopper below the belt. However, in the case of the embodiment shown in FIG. 7 and the embodiment shown in FIG. 18 above. Since the scraper 9 does not rotate in the upright direction more than necessary and bites into the belt surface, and instead stops at a predetermined position without rotating, the scraper 9 can be rotated in the opposite direction to that shown in Figure 1. ．． That is, the scraper 9 can be arranged so as to bulge out in an arcuate direction in the opposite direction to the return running direction R of the belt 1. [Effects of the Invention] ■ According to the present invention as set forth in claim 1, the blade 10 constituting the scraper 9 is rotatably supported around the axis A facing in the belt transverse direction. The upper edge of the blade 10 that contacts the belt surface. The blade 10 is curved so as to gradually move away from the axis A from both sides of the belt to the center, and when the belt is rotated and stood up about the axis A, the upper edge of the blade 10 bulges upward. Scraping part 1
3, even when the belt has a bow-like trough pattern and the belt surface is worn in the center. The scraping part 13 of the blade 10 can be brought into contact with the belt surface without creating a gap between the scraping part 13 and the belt surface, and the residual deposits on the belt surface can be suitably scraped off. There is an effect that can be achieved. (2) Also, according to the present invention as set forth in claim 2, the blade 10 is urged to rotate in the upright direction by the resilient means 17 so as to press the scraping portion l3 against the belt surface. , when the scraping part 13 is worn out, the scraper 9 automatically rotates the blade 1 (13) in the upright direction, and keeps the scraping part 13 bulged upward in an arch shape to maintain the gap between the scraping part 13 and the belt surface. This has the effect that a good scraping function can always be achieved without adjusting the upright state of the blade 10.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a belt cleaner device according to an embodiment of the present invention, and FIG. 2 is a front view of the same device. Figure 3 is a partially cutaway side view of the device, and Figure 4 is an enlarged vertical cross-sectional view of the scraper of the device. Fig. 5 is a side view of the same device with the scraper in an upright and rotating state, Fig. 6 is a front view of the same, and Fig. 7 is a side view showing an embodiment in which the position of the axis vAA has been changed. Fig. 8 is a plan view showing another embodiment of the support shaft constituting the axis A, Fig. 9 is an r-side view showing an embodiment in which scrapers are arranged in a double manner, and Fig. 10 is a scraper of the present invention and a conventionally known scraper. 11 is an enlarged vertical cross-sectional view of another embodiment of the scraper, FIG. 12 is an enlarged vertical cross-sectional view of still another embodiment of the scraper, and FIG. 13 is a plan view showing an embodiment in which the scraper is combined with a cleaner device. 14 is a side view illustrating another embodiment of the explosive means, FIG. 15 is a side view illustrating still another embodiment of the explosive means. A side view, FIG. 16 is a plan view illustrating still another embodiment of the triggering means, FIG. 17 is a side view illustrating still another embodiment of the triggering means, and FIG. 18 is a plan view illustrating another embodiment of the triggering means. 71 is a side view illustrating an example in which there is no belt. 8... Shaft member 1 9... Scraper 10... Blade, 13
. . . scraping portion, 17 . . . explosive means. A... Axis line. -ioo- Figure 8 Figure 10

Claims (1)

[Claims] 1. In a belt cleaner device equipped with a scraper disposed on the return side of a conveyor belt in the transverse direction of the belt and for removing residual deposits on the belt surface: a blade (10) with an upper edge contacting the surface;
The blade (10) is connected to a shaft member (8) whose rotation can be freely adjusted around an axis A pointing in the transverse direction of the belt;
The belt is curved so as to gradually move away from the axis A from both sides of the belt to the center, and when the shaft member (8) is rotated about the axis A and the blade (10) is raised,
A belt cleaner device characterized in that the upper edge of the blade (10) constitutes an arcuate scraping portion (13) that bulges upward. 2. In a belt cleaner device equipped with a scraper disposed on the return side of a conveyor belt in the transverse direction of the belt and for removing residual deposits on the belt surface: The scraper (9) has an upper edge in contact with the belt surface. a blade (10) with a section;
The blade (10) is connected to a shaft member (8) whose rotation can be freely adjusted around an axis A pointing in the transverse direction of the belt;
The belt is curved so as to gradually move away from the axis A from both sides of the belt to the center, and when the shaft member (8) is rotated about the axis A and the blade (10) is raised,
The upper edge of the blade (10) constitutes an arcuate scraping portion (13) that bulges upward; furthermore, the shaft member (8) is rotated in a direction to raise the blade (10). A belt cleaner device characterized in that it is provided with a triggering means (17) for energizing the belt cleaner.