JP2007153501A - Belt conveyor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a belt conveyor device capable of carrying various articles such as powdery, granular and lump matter. <P>SOLUTION: An upper traveling part of an endless belt 4 capable of rotatably traveling, is stored in an upper case of a cylindrical shape or an upper opening cylindrical shape, and a carrying object can be mounted by deforming the upper traveling part in a gutter shape of an upper opening by the upper case. A lower traveling part of the endless belt 4 is stored in a lower part case, and the lower traveling part is deformed in a gutter shape of a lower opening by the lower case. A recess part without contacting with a reverse surface of the endless belt is also formed on both edge inner surfaces in the axial direction of the upper and lower cases, and a recess part of the upper case is formed as an inclined face downward to the outside, and a recess part of the lower case is formed as an inclined face upward to the outside. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a belt conveyor device capable of transporting various articles such as powder, granules and lumps.

  There are various shapes and structures of belt conveyor devices for conveying various articles. As one of them, there is a belt conveyor device that the applicant of the present application previously applied for (see Patent Document 1). As shown in FIG. 7, the belt conveyor device includes a belt conveyor B accommodated in a case A, guide rollers F are provided on the inlet side and the outlet side of the belt conveyor B, and the endless belt E of the endless belt E is guided by the guide rollers F on the inlet side. The both ends in the width direction of the upper traveling part G are pushed upward to bend in a bowl shape and travel in the case A, the transported goods are mounted on the curved upper traveling part G and transported, and the guide roller on the exit side The lower traveling portion (return portion) H of the endless belt E sent out in a curved shape by F is gradually restored to a flat shape and travels.

JP 2005-225635 A.

  The belt conveyor device described in Patent Document 1 has no particular problem, but a user who uses the belt conveyor device wants to provide a belt conveyor device that is simpler in structure, more compact, easier to maintain, and easier to handle. There is a request.

  In the belt conveyor device of the present application, the upper traveling portion of the endless belt that can rotate by the rotation of the driving rotating body is accommodated in an upper belt case of a cylindrical shape or an upper opening cylindrical shape, The traveling part is deformed into a bowl shape with an upper opening along the shape of the upper case. In this case, as described in claim 2, the lower running portion of the endless belt is accommodated in a cylindrical or lower opening cylindrical lower case, and the lower running portion is formed in a bowl shape having a lower opening along the shape of the lower case. It can also be made to deform. According to a third aspect of the present invention, a relief portion for avoiding contact with the back surface of the endless belt is formed on the inner surface of both end edges in the axial direction of the upper case and / or the lower case. In addition, the relief portion of the lower belt case can be formed on the outer side ascending slope so that the endless belt can be prevented from being damaged by contact with the upper belt case and the lower belt case.

The belt conveyor device according to claim 1 of the present application has the following effects.
(1) Since the upper traveling portion of the endless belt is automatically deformed along the shape of the upper case having a cylindrical shape or an upper opening cylindrical shape, there is no need to use an auxiliary roller for deforming the upper traveling portion. , Simple structure, easy assembly, disassembly, maintenance, etc., making it less likely to cause failure or trouble.
(2) Since the upper running part of the endless belt is automatically deformed along the shape of the upper case that is a cylinder or an upper opening cylinder, the shape (powder, granular, lump), size, etc. of the conveyed article In addition, it is possible to change the inner diameter (curved shape) of the upper traveling portion of the endless belt only by changing the inner diameter of the upper case, and it is possible to provide a belt conveyor device suitable for the conveyed article.
(3) Since the upper case has a cylindrical shape or a cylindrical shape with an upper opening, the existing pipe can be used as it is, or a part of the existing pipe can be cut and used, and the cost is greatly reduced.
(4) Since the upper traveling portion of the endless belt has a bowl shape with an upper opening, rigidity is generated in the upper traveling portion and is less likely to be deformed as compared to a flat plate shape, and slack and meandering are less likely to occur during traveling.
(5) When the upper case has a cylindrical shape with an upper opening, since the endless belt in the upper case can be taken out from the upper opening, it is easy to replace the endless belt or to attach and detach the endless belt during cleaning.
(6) When the upper case is cylindrical, the dust generated from the conveyed object is hardly scattered to the outside, and the sanitary belt conveyor device does not contaminate the work environment.

The belt conveyor device according to claim 2 of the present application has the following effects in addition to the above effects.
(1) The lower traveling part of the endless belt is also automatically deformed along the shape of the lower case, which is a cylinder or a cylinder with a lower opening, so it is necessary to use an auxiliary roller for curving the lower traveling part Nor. For this reason, the upper traveling portion and the lower traveling portion of the endless belt are both accommodated in the case, and are reduced in size and size, and can be installed in a reduced space.
(2) Since the lower traveling portion of the endless belt is also deformed into a bowl shape with a lower opening, the lower traveling portion is also rigid, and is less likely to be deformed than a flat plate, so that slack and meandering are less likely to occur during traveling. .
(3) When the lower case has a cylindrical shape with a lower opening, since the endless belt in the lower case can be taken out from the lower opening, it is easy to replace the endless belt and to attach / detach the endless belt during cleaning.
(4) When the lower case has a cylindrical shape, the dust generated from the conveyed object is hardly scattered to the outside, and the sanitary belt conveyor device does not contaminate the work environment.

The belt conveyor device according to claim 3 of the present application has the following effects in addition to the above effects.
(1) Since an escape portion that avoids contact with the back surface of the endless belt is formed on the inner surface of both ends in the axial direction of the upper case and / or the lower case, the endless belt hardly comes into contact with the upper case and the lower case, wears, It becomes difficult to damage, the frequency of replacing the endless belt is reduced, and the effort and cost of replacing the endless belt are reduced.

(Embodiment 1)
An example of an embodiment of the belt conveyor device of the present invention will be described with reference to FIGS. The belt conveyor apparatus shown in FIG. 1 has an endless belt 4 hung on a roller-like drive rotator 2 and a roller-like follower rotator 3, and the drive rotator 2 and its related members are driven in a drive rotator case 5. The rotating body 3 and its related members are housed in a driven rotating body case 6, the upper traveling portion (conveyed article mounting portion) 7 of the endless belt 4 is placed in the upper case 9, and the lower traveling portion (return portion) 8 is placed in the lower case. 10 are respectively housed. The upper case 9 and the lower case 10 are arranged and fixed between the drive rotating body case 5 and the driven rotating body case 6.

  The endless belt 4 may be made of various materials such as rubber and resin, but is preferably made of resin in terms of weight reduction and durability.

  The upper case 9 has a cylindrical shape with an upper opening, the lower case 10 has a cylindrical shape with a lower opening, and both the cases 9 and 10 are arranged vertically by attaching the bottom surface of the upper case 9 and the upper surface of the lower case 10 together. Yes. The upper case 9 and the lower case 10 are both used by turning the upper part of the round pipe in the axial direction upside down. The inner surfaces of the upper case 9 and the lower case 10 are formed to be smooth, and the endless belt 4 can be made slippery by, for example, coating a sliding material. As shown in FIGS. 3A and 3B, the inner surfaces 48 of both end edges in the axial direction of the upper case 9 are formed as slopes that are outwardly descending to form relief portions 15 that do not easily come into contact with the back surface of the belt 4. The inner surfaces 49 at both end edges in the axial direction are formed as slopes that rise outward, and the relief portions 16 that do not easily contact the back surface of the belt 4 are formed. These slopes can be formed by chamfering.

  Both ends of the upper case 9 and the lower case 10 are set on the connecting plate 21. As shown in FIG. 2 (b), an upper case attaching portion 27 for fitting the upper case 9 is formed in an arc shape with an upper opening on the connecting plate 21, and a lower case attaching portion 28 for fitting the lower case 10. Is formed in a circular arc shape of the lower opening, and both the upper opening 27a and the lower opening 28a of the mounting portions 27, 28 are opened smaller than the radius, and are fitted into the upper opening 27a and set. The lower case 10 fitted and set in the upper case 9 and the lower opening 28a is prevented from falling off from the respective openings 27a and 28a. By attaching the connecting plate 21 to the drive rotator case 5 and the driven rotator case 6 as shown in FIG. 2A, the upper case 9 and the lower case 10 are located between the drive rotator case 5 and the driven rotator case 6. And connected to them.

  By accommodating the endless belt 4 in the upper case 9 and the lower case 10 as shown in FIGS. 1 and 2, the upper running portion 7 of the endless belt 4 in the upper case 9 is placed on the inner peripheral wall surface of the upper case 9. It is forcibly curved along and deformed into a bowl shape of the upper opening, and can be transported with a transported object mounted thereon. When the upper traveling unit 7 finishes transporting the conveyed product and rotates to the outside of the upper case 9, the upper traveling unit 7 is automatically restored to a flat plate shape and returns downward along the drive rotator 2 to become the lower traveling unit 8. Continue running in 10 The lower traveling part 8 in the lower case 10 is forcibly curved along the inner peripheral wall surface of the lower case 10 to be deformed into a bowl shape having a lower opening, and travels in the lower case 10 in the deformed state. When it rotates to the outside, it automatically restores to a flat plate shape, returns to the upper side along the driven rotor 3 and travels, and enters the upper case 9 as it is and continuously travels.

  Two portions in the axial direction of the upper case 9 and the lower case 10 are supported by a support plate 52 to prevent the long upper case 9 and the lower case 10 from slacking downward. As shown in FIG. 6, the support plate 52 is a single plate material, and an upper fitting portion 53 is formed in the upper portion for fitting the upper case 9 in the upper portion, and the lower case 10 is fitted in the lower portion. A lower fitting part 54 for the lower opening is formed. Stoppers 55 are attached to the side surfaces of the respective support plates 52 as shown in FIG. What is commonly called a patchon lock is used as the stopper 55. The fastener 55 can manually lock and release the fixing band 56 wound around the covers 11a and 11b covering the upper opening of the upper case 9 and the lower opening of the lower case 10 and closing the openings. Is.

  Both the upper cover 11a and the lower cover 11b have a flat plate shape, and are formed to have a length and width that can cover the upper case 9 and the lower case 10, as shown in FIGS. The case 9 and the lower case 10 are bent so as to be covered on both outer sides. A closing port 50 is opened at a position near the driven rotor case 6 of the upper cover 11 a, a hopper 51 is attached to the charging port 50, and a conveyed product loaded from the hopper 51 passes through the charging port 50 and the endless belt 4. It can be dropped and mounted on the upper traveling portion 7. By providing the upper cover 11a and the lower cover 11b, the conveyed item being conveyed does not spill out, dust and dust generated from the conveyed item do not come out of the device, and the periphery of the device can be kept clean. it can.

  As shown in FIG. 4, the drive rotor case 5 includes two side plates 20, a connecting plate 21 (FIG. 2 b) for attaching the upper case 9 and the lower case 10, and a bearing base plate for attaching the bearing 17. 22, a motor base plate 23 for mounting the motor 13, a reinforcing plate 24 disposed between the two side plates 20, and the surface of the endless belt 4 hung on the drive rotating body 2. It comprises a belt cleaner 25 for cleaning.

  The drive rotating body case 5 can be assembled as follows. As shown in FIG. 4, the reinforcing plate 24 is disposed and fixed between the two side plates 20, both ends of the rotary shaft 12 are inserted into the shaft holes 26 of the two side plates 20, and the one side plate 20 is outward. One end of the protruding rotating shaft 12 is attached to the motor 13 through the motor base plate 23, and the other end of the rotating shaft 12 protruding outside the other side plate 20 is attached to the bearing 17 through the bearing base plate 22. Then, the drive rotator 2 is set rotatably, the connecting plate 21 (FIG. 2b) is attached to the front end surfaces of the two side plates 20, and one end of the endless belt 4 is hung on the drive rotator 2, and then the two A belt cleaner 25 is attached between the side plates 20. As shown in FIG. 3, the belt cleaner 25 is attached to the side plates 20 with the cleaner plate 31 and the cleaner presser plate 32 overlapped on the cleaner base 30 fixed to the side plate 20, and the cleaner plate 31 contacts the surface of the endless belt 4. I'm allowed.

  As shown in FIG. 4, the drive rotator 2 includes a rotation shaft 12 at the center of the roller 2 a, and the rotation shaft 12 is connected to a drive source (motor) 13 so as to rotate as the motor 13 rotates. It is.

  As shown in FIG. 5, the driven rotor 3 has a shaft 14 rotatably attached to the center of a roller 3 a via a bearing 33. As shown in FIG. 5, the driven rotor 3 is supported by dropping both ends of the shaft 14 into the receiving groove 39 of the bearing block 34 of the driven rotor case 6 from above, and the roller 3 a moves around the outer periphery of the shaft 14. It is designed to rotate. With this configuration, the endless belt 4 is rotated when the driving rotating body 2 is rotated by the rotation of the driving source (motor) 13, and the driven rotating body 3 is also rotated by the rotation.

  As shown in FIG. 5, the driven rotor case 6 supports a side plate 35, a connecting plate 21 (FIG. 2 a, b) for attaching the upper case 9 and the lower case 10, and the shaft 14 of the driven rotor 3. The bearing block 34 and the shaft 14 of the driven rotor 3 supported by the bearing block 34 are slid in the same direction by sliding the bearing block 34 in the longitudinal direction of the endless belt 4 (LR direction in FIG. 5). A tension adjusting mechanism 36 that can adjust the tension (tension) of the endless belt 4 by sliding, and a reinforcing plate 37 for reinforcing both side plates 35 are configured. As shown in FIG. 4, the bearing block 34 is provided with support recesses 39 that can drop both ends of the shaft 14 projecting from both ends of the driven rotator 3 from above to fix the shaft 14 of the driven rotator 3. Yes. The bearing block 34 is connected to a moving block 42 outside the side plate 35 through a horizontally long hole (hidden in the mounting plate 44 in FIG. 5) opened in the side plate 35.

  As shown in FIG. 5, in the tension adjusting mechanism 36, a tension bolt 45 is screwed into a screw hole 60 of a moving block 42 attached to the outside of the side plate 35 so as to be able to rotate forward and backward. When the tension bolt 45 is rotated in the forward direction, the moving block 42 slides in the direction of the arrow L (drive rotator 2 side) in FIG. 5, and accordingly, the bearing block 34 connected to the moving block 42 slides in the same direction. The driven rotator 3 supported by the bearing block 34 slides in the same direction and approaches the drive rotator 2, and the tension (tension) of the endless belt 4 hung on the drive rotator 2 and the driven rotator 3 is increased. Loosen. When the tension bolt 45 is rotated in the reverse direction, the moving block 42 slides in the direction indicated by the arrow R in FIG. 4 (the direction opposite to the normal rotation), and the bearing block 34 slides in the same direction. The tension (tension) of the endless belt 4 is increased (tensed) away from the rotating body 2.

  Each component of the belt conveyor device of the present invention, such as the drive rotator 2, the driven rotator 3, the drive rotator case 5, the driven rotator case 6, the upper case 9, the lower case 10, the covers 11a and 11b, the support plate 52, etc. From the viewpoint of weight reduction, strength, durability, etc., it is desirable to make it stainless steel, but it can also be made of any other member.

(Operation example of belt conveyor device)
The endless belt 4 of the belt conveyor apparatus of the present invention operates as follows.
(1) When the motor 13 is operated to rotate the drive rotator 2, the endless belt 4 travels in the direction of the arrow in FIG.
(2) The upper traveling portion 7 of the endless belt 4 is curved and travels in a bowl shape with an upper opening in the upper case 9 as shown in FIG. When a conveyed product is introduced from the hopper 51, the conveyed product is mounted on the upper traveling unit 7 and conveyed.
(3) The upper traveling unit 7 that has traveled to the upper case 9 is automatically restored to a flat plate shape, and the conveyance body is discharged to the outside, or is sent to another conveyor or the like disposed at the front of the upper traveling unit 7. Or
(4) The surface of the endless belt 4 restored to a flat plate shape is rotated and cleaned downward while contacting the belt cleaner 25 outside the drive rotator 2, and travels downward to become the lower traveling unit 8.
(5) The lower traveling portion 8 of the endless belt 4 is deformed into a bowl shape having a lower opening in the lower case 10 and travels in the lower case 10, travels to the outside of the lower case 10, and automatically follows the driven rotor 3. It is restored to a flat plate shape and enters the upper case 9.
The endless belt 4 continuously rotates by repeating the operations (1) to (5), and conveys the conveyed product.

(Endless belt replacement)
When replacing the endless belt 4 in the belt conveyor apparatus of the present invention, the following is performed.
(1) The traveling of the endless conveyor is stopped, and the upper cover 11a and the lower cover 11b are removed from the upper case 9 and the lower case 10. The belt cleaner 25 in the drive rotor case 5 is also removed.
(2) The tension bolt 45 of the driven rotator case 6 is reversely rotated to slide the driven rotator 3 in the L direction in FIG. 5 to loosen the tension of the endless belt 4 and to support the shaft 14 of the driven rotator 3 as a bearing. Remove from the fixed recess 39 of the block 34.
(3) The driven rotor 3 is removed from the driven rotor case 6 and the driven body 3 is removed from the endless belt 4.
(4) The upper traveling portion 7 of the endless belt 4 is extracted from the upper opening portion of the upper case 9, and the lower traveling portion 8 is extracted from the lower opening portion of the lower case 10.
(5) The endless belt 4 is removed from the drive rotator 2 and removed from the side of the drive rotator case 5.
(6) A new endless belt 4 is hung on the drive rotator 2 from the side of the drive rotator case 5.
(7) The endless belt 4 is pulled into the upper case 9 and the lower case 10 from the upper opening of the upper case 9 and the lower opening of the lower case 10, and one end of the endless belt 4 is hung on the drive rotating body 2 and the other end Is attached to the driven rotator 3, and the shaft 14 of the driven rotator 3 is fitted into the fixed recess 39 of the bearing block 34 to mount the driven rotator 3 in the driven rotator case 6.
(8) The tension bolt 45 of the driven rotator case 6 is rotated forward to slide the driven rotator 3 in the direction R in FIG. 5 to apply tension to the endless belt 4, thereby tensioning the endless belt 4 to a predetermined tension.

(Embodiment 2)
In the first embodiment, the drive rotator case 5 and the driven rotator case 6 are not provided with a cover, and the end surfaces of the upper surface and the bottom surface are open. However, the drive rotator case 5 and the driven rotator case 6 have covers. As a structure and shape that can be covered and sealed, the belt conveyor device can be used outdoors by taking measures against dust and waterproofing.

(Embodiment 3)
In each of the above embodiments, the upper case 9 has a cylindrical shape with an upper opening and the lower case 10 has a lower opening, but either or both of the upper case 9 and the lower case 10 have no opening. It can also be cylindrical. The cylindrical shape is not limited to a cylindrical shape, and may be a square tube or a polygonal tube.

(Other embodiments)
In the belt conveyor apparatus of the present invention, a discharge port is provided in the bottom surface portion of the drive rotator case 5, and the conveyed product discharged from the upper traveling portion can be discharged from the drive rotator case 5 to the outside. Further, the belt cleaner 25 can be omitted.

  The belt conveyor device of the present invention can be widely applied in the fields of agriculture and industry.

The perspective explanatory view showing an example of the embodiment of the belt conveyor device of the present invention. (A) is a disassembled perspective view of the belt conveyor apparatus of FIG. (B) is a perspective view which shows a connection board. (A) is explanatory drawing of the upper case and lower case in the belt conveyor apparatus of this invention, (b) is sectional drawing of both cases. The disassembled perspective view of the drive rotary body case in the belt conveyor apparatus of FIG. The disassembled perspective view of the driven rotor case in the belt conveyor apparatus of FIG. Sectional explanatory drawing of the upper case and lower case of the belt conveyor apparatus of FIG. An explanatory perspective view showing an example of a conventional belt conveyor device.

Explanation of symbols

2 Drive Rotating Body 3 Driven Rotating Body 4 Endless Belt 5 Drive Rotating Body Case 6 Driven Rotating Body Case 7 Upper Traveling Section 8 Lower Traveling Section 11a Upper Cover 11b Lower Cover 25 Belt Cleaner 34 Bearing Block 36 Tension Adjustment Mechanism

Claims (3)

  An endless belt capable of rotating by rotation of a driving rotating body and a cylindrical or upper opening cylindrical upper case that accommodates an upper traveling portion of the endless belt, and the upper traveling portion has a shape of an upper opening depending on the shape of the upper case. A belt conveyor device that is deformed into a shape and is capable of carrying a conveyed product.   2. The belt conveyor device according to claim 1, further comprising a cylindrical or lower opening cylindrical lower case that accommodates the lower traveling portion of the endless belt, wherein the lower traveling portion is deformed into a bowl shape having a lower opening depending on the shape of the lower case. The belt conveyor apparatus characterized by the above-mentioned. In the belt conveyor apparatus according to claim 1 or 2, a relief portion for avoiding contact with the back surface of the endless belt is formed on the inner surface of both ends of the upper case and / or the lower case in the axial direction, and the relief portion of the upper case is A belt conveyor device characterized in that a downward slope is formed on the outer side, and a relief portion of the lower case is formed on the outer side.

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