JP2010275104A - Bucket conveyor device and assembling method for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of a conventional bucket conveyor device wherein a joint of a belt gets aground on an outer peripheral face of a pulley, thereby applying load on the joint. <P>SOLUTION: This bucket conveyor device is constituted by mounting an upper side pulley 10 and a lower side pulley 11 on an upper side and a lower side of a case 1 having a supply hopper 3 and an upper part case 5 in a lower part and an upper part, respectively, and being long in the vertical direction and stretching the belt 15 provided with a bucket 13 around the upper side pulley 10 and the lower side pulley 11. In this belt 15, a belt body 16 constituted by separating an end of an end part 16A on one side from an end of an end part 16B on the other side and being like one belt having the predetermined length is formed into an endless manner by connecting the end part 16A on one side with the end part 16B on the other side by a fixing member 17. A joint part T constituted by connecting the end part 16A on one side with the end part 16B on the other side by the fixing member 17 is positioned on an outer side for an inner face of the traveling belt 15. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bucket conveyor device and an assembling method thereof.

2. Description of the Related Art Conventionally, a configuration in which grains are lifted and conveyed by a belt that rotates around an upper and lower pulley and rotates in a vertical direction and a plurality of buckets provided at predetermined intervals on the belt is known (see Patent Document 1).
Further, in the field of the bucket conveyor device, there is no document relating to a configuration that makes the belt endless, and of course, there is no description of a specific configuration of the belt in Patent Document 1.
However, as a general method for making an endless belt, a configuration in which a resin or the like is molded to form a seamless belt from the beginning is well known, but the manufacturing cost increases.
Conventionally, although not in the field of bucket conveyor devices, the belt body is cut with one end and the other end so as to have a predetermined length of one sheet, and the one end of this belt The structure which connects the other end part to the endless shape is known (see Patent Document 2).
The structure is such that the outer surface and the inner surface of the one end and the other end of the belt body are sandwiched and fixed by separate fixing members, and the fixing member at the one end and the fixing member at the other end are The pair of fixing members are connected to each other by bolts and nuts.

Japanese Examined Patent Publication No. 62-24324 JP 2001-173727 A

Among the above-mentioned known examples, Japanese Patent Publication No. 62-24324 does not disclose a configuration for making the belt endless.
Among the known examples described in Japanese Patent Application Laid-Open No. 2001-173727, the fixing member is fixed so as to sandwich the outer surface and the inner surface of one side end portion of the belt body, and similarly, the outer surface of the other side end portion. The fixing member is fixed so that the inner surface and the inner surface are sandwiched, and the pair of fixing members are connected to each other by a bolt and a nut. Therefore, there is a problem that the structure is complicated and the manufacturing and assembly costs increase.
In addition, since the fixing member sandwiches the outer surface and the inner surface of each of the one end portion and the other end portion of the belt body, a part of the fixing member is always located on the inner surface side of the belt. When the belt body rotates, the joint portion connecting the one end portion and the other end portion of the belt body comes into contact with the outer peripheral surfaces of the upper pulley and the lower pulley, and the joint portion is the outer periphery of the upper pulley and the lower pulley. Each time you ride on the surface, a load greater than the load applied to the belt body other than the seam is applied to the seam, reducing the durability of the belt at the seam and causing vibration and noise. There is a problem.
In the present invention, the connection configuration of the one end and the other end of the belt body is devised to improve the durability of the belt and reduce vibration and noise.

In the present invention, an upper pulley 10 and a lower pulley 11 are mounted on the upper and lower sides of a vertically long case 1 provided with a supply hopper 3 at the lower portion and an upper case 5 at the upper portion, respectively. 11, a belt 15 provided with a plurality of buckets 13 at predetermined intervals is wound around the belt 15, and the belt 15 has a predetermined length of one piece separated from both ends of the one side end portion 16A and the other side end portion 16B. The belt body 16 having the one-side end portion 16A and the other-side end portion 16B is connected to each other by a fixing member 17, and the one-side end portion 16A and the other-side end portion 16B are connected to the fixing member 17. The joint portion T connected and configured by the above is a bucket conveyor device configured to be positioned outside the inner surface of the moving belt 15.
In the present invention, the fixing member 17 includes a pair of gripping bodies 18 having a gripping portion 19 that intersects the moving direction of the belt body 16, and the one side end portion 16 </ b> A and the other side end portion 16 </ b> B are connected to the belt 15. In the state where the inner surface of one side end portion 16A of the belt body 16 and the inner surface of the other side end portion 16B are opposed to each other and abutted against each other with respect to the inner surface, The other side end portion 16B is clamped by the holding portions 19 of the pair of holding bodies 18 from the respective outer surface sides, and the one side end portion 16A and the other side end portion 16B and the pair of holding portions 19 are fixed by a stopper member 21. It is a bucket conveyor device.
In the present invention, the stopper member 21 has an axial direction substantially parallel to the moving direction of the belt 15 and passes through the one side end portion 16A, the other side end portion 16B, and the holding portions 19 of the pair of holding members 18. Thus, the bucket conveyor device in which the one-side end portion 16A, the other-side end portion 16B, and the pair of holding bodies 18 are fixed.
In the present invention, the seam T formed by the one end 16A, the other end 16B, and the holding portions 19 of the pair of holding members 18 is positioned inside the movement locus of the bucket 13 provided on the belt 15. This is a bucket conveyor device.
The present invention is a bucket conveyor device in which the holding portion 19 of each holding body 18 of the fixing member 17 is bent in a direction parallel to the moving direction of the belt body 16 and a pressing portion 25 is provided.
The present invention is a bucket conveyor device in which the pressing part 25 is formed integrally by bending the left and right sides of the holding part 19 and a notched space part 26 is formed between the left and right pressing parts 25.
It is what.
In the present invention, the space portion 26 is a bucket conveyor device formed also on the lower surface of the holding portion 19 between the left and right pressing portions 25.
According to the present invention, the relationship between the left and right pressing portions 25 and the space portion 26 is a bucket conveyor device in which the left and right widths of the space portion 26 are larger than the left and right widths of the left and right pressing portions 25.
The present invention is a bucket conveyor device in which the pressing portion 25 is bent at an angle larger than a right angle in a side view with the holding portion 19.
In the present invention, the belt body 16 having a lateral width wider than the lateral width of the bucket 13 to be attached and having a predetermined thickness is cut into a single sheet having a predetermined length. One side end portion 16A and the other side end portion 16B are formed, respectively, and the one side end portion 16A and the other side end portion 16B of the belt body 16 are bent toward the outer surface side of the belt body 16, respectively. The inner surface of the side end portion 16A and the inner surface of the other side end portion 16B are opposed to each other, and the holding portion 19 of the fixing member 17 is applied to each of the outer surface of the one side end portion 16A and the outer surface of the other side end portion 16B. The one side end portion 16A and the other side end portion 16B are sandwiched by a pair of fixing members 17, and the pair of fixing members 17 are fixed together with the one side end portion 16A and the other side end portion 16B by the stopper member 21, and the fixing member 17 and one end 16A and the other end Joint portion T formed by 6B is obtained by the assembly method of the bucket conveyor apparatus to move is located outside against the inner surface of the belt 15.

In the first aspect of the invention, even if there is a seam T that makes the belt 15 endless, the seam T is located outside the inner surface of the moving belt 15, so the upper pulley 10 and the lower pulley 11. Therefore, it is possible to suppress a load larger than the load applied to the belt body 16 in the portion other than the joint portion T on the portion of the joint portion T, thereby reducing the durability of the belt 15 in the joint portion T portion. In addition, the generation of vibration and noise can be suppressed.
In the invention of claim 2, the fixing member 17 is constituted by a gripping body 18 having a gripping part 19 that intersects the moving direction of the belt body 16, and the one end 16 </ b> A and the other end projecting outward with respect to the inner surface of the belt 15. Since the holding portions 19 of the pair of holding bodies 18 are sandwiched from the outer surface sides of the side end portions 16B, a configuration in which the joint portion T is positioned outside the inner surface of the moving belt 15 can be easily realized. .
In the invention of claim 3, since the axial center direction of the stop member 21 is made substantially parallel to the moving direction of the belt 15, the one side end portion 16A, the other side end portion 16B, and the clamping portion 19 are penetrated and attached. Further, the stop member 21 can be prevented from coming into contact with the upper pulley 10 and the lower pulley 11, vibration and noise can be prevented, and damage to the joint T and the upper pulley 10 and the lower pulley 11 can be prevented. can do.
In the invention of claim 4, since the joint portion T is positioned inside the movement locus of the bucket 13 provided on the belt 15, the joint portion T is prevented from contacting other members in the main body case 1. be able to.
In the invention of claim 5, since the holding portion 19 of each holding body 18 of the fixing member 17 is provided with the pressing portion 25, the pressing portion 25 is connected to the one end 16 </ b> A and the other end 16 </ b> B of the belt body 16. However, it can hold | maintain so that it may protrude to the side with respect to the outer surface of the belt 15, and the joint part T can always be located in the outer side with respect to the inner surface of the moving belt 15. FIG.
In the invention of claim 6, since the notched space portion 26 is formed between the left and right pressing portions 25, the area of the overlapping portion between the pressing portion 25 of the fixing member 17 and the lower pulley 11 is further reduced. Thus, it is possible to prevent the grain from entering between the belt 15 and the lower pulley 11 and to suppress the vibration of the belt 15.
In the invention of claim 7, the space portion 26 is also formed on the lower surface of the holding portion 19 between the left and right pressing portions 25, so that the holding portion 19 of the fixing member 17 and the lower pulley 11 overlap each other. Can be further reduced to prevent the grain from entering between the belt 15 and the lower pulley 11 and to suppress the vibration of the belt 15.
In the invention of claim 8, since the left and right widths of the space portion 26 are formed larger than the left and right widths of the left and right pressing portions 25, the certainty of holding the joint portion T in the laterally protruding state by the pressing portions 25 is ensured. In the above, it is possible to prevent the grain from entering between the belt 15 and the lower pulley 11, and to suppress the vibration of the belt 15.
In the invention of claim 9, since the pressing portion 25 is bent with an angle larger than a right angle in a side view between the holding portion 19, the outer peripheral surface of the belt 15 in the fixing member 17 portion and the lower pulley 11. And the grain S can be prevented from entering between the inner surface of the belt 15 and the outer surface of the lower pulley 11.
In the invention of claim 10, it is possible to simply provide a method for causing the joint portion T to be positioned outside the inner surface of the moving belt 15.

The side view of a bucket conveyor apparatus. The front view of a bucket conveyor apparatus. The vertical side view of a bucket conveyor apparatus. A longitudinal side view of the vicinity of the lower pulley. The cross-sectional top view of a bucket conveyor apparatus. The assembly order explanatory drawing of a seam part. The perspective view of a seam part. The vertical side view of a seam part. The front view of a fixing member. FIG. FIG. The cross-sectional top view of a seam part. The longitudinal front view of a pulley. The same side view. The movement state sectional drawing of the pulley peripheral surface of a seam part. The perspective view of the other Example of a lower pulley. The same side view. FIG. The bottom view.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a case that is vertically long on the bucket conveyor B, and a lower case 2 of the main body case 1 is provided with a supply hopper 3. A plurality of intermediate cases 4 are attached above and below the lower case 2 and the upper case 5 is attached to the uppermost intermediate case 4. The upper case 5 is provided with a discharge port (falling port) 6. 7 is an inspection window provided in the intermediate case 4, and 8 is a drive motor.
A pair of upper and lower upper pulleys 10 and a lower pulley 11 are mounted on the upper and lower positions in the case 1. An endless belt 15 having a bucket 13 is wound around the upper pulley 10 and the lower pulley 11.
The upper pulley 10 and the drive motor 8 transmit rotation by means of a chain or a belt, and the belt 15 is driven to rotate.
Reference numeral 14 denotes a long hole for adjusting the tension of the belt 15 by moving the upper pulley 10 up and down (FIG. 3). Although not shown, a tension mechanism for adjusting the tension of the belt 15 is provided.

The belt 15 has a left and right width of the bucket 13 (direction is shown for ease of understanding and will be described below, but the configuration thereof is not limited thereby). Fixed and endlessly formed.
The fixing member 17 sandwiches one end 16A and the other end 16B of the belt body 16 in the vertical direction (front and back) by a pair of holding bodies 18.
The gripping body 18 is formed having a gripping portion 19 that intersects the moving direction of the belt body 16. The left-right width of the gripping portion 19 is narrower than the left-right width of the belt body 16 (FIG. 11). A plurality of mounting holes 20 are formed in the holding part 19 (FIGS. 6 and 8), and the one end 16A and the other end 16B are sandwiched by the holding part 19 and fixed by the stopper member 21. .
That is, a belt body 16 having a lateral width wider than the lateral width of the bucket 13 to be attached and having a predetermined thickness is cut into a single predetermined length, and one end of each belt body 16 is provided at both ends. A portion 16A and the other end 16B are formed respectively.

Next, the one-side end portion 16A and the other-side end portion and the other-side end portion 16B are bent sideways in the crossing direction with respect to the moving direction of the belt body 16, and the one-side end portion 16A and the other-side end portion on the other side. The belt 16 is protruded laterally from the intermediate belt portion 16C in the middle of the end portion 16B, and the inner surface of one end portion 16A of the belt body 16 and the inner surface of the other end portion 16B are opposed to each other.
Therefore, in the state of FIG. 8, the one side end portion 16 </ b> A and the other side end portion 16 </ b> B of the belt body 16 overlap in the vertical direction and protrude to the outer surface side of the belt 15.
Next, the one side holding part 19A and the other side holding part 19B of the pair of holding bodies 18 are respectively applied to the outer surface (upper surface) of the one side end part 16A and the outer surface (lower surface) of the other side end part 16B. The one-side end portion 16A and the other-side end portion 16B are sandwiched by a pair of holding bodies 18 (FIG. 8).
The stopper member 21 is penetrated and fixed to the one side end portion 16A and the other side end portion 16B and the pair of holding portions 19.

In this case, the stopper member 21 is constituted by a bolt 21A and a nut 21B, and the axial direction of the bolt 21A and the nut 21B is made substantially parallel to the moving direction of the belt 15 so that the one end 16A and the other end 16B. Since the holding member 19 of the pair of holding members 18 is penetrated, the stopper member 21 is always located on the outer surface side in the moving direction of the belt 15 and does not directly contact the upper pulley 10 and the lower pulley 11.
As described above, the endless belt 15, the joint portion (connecting portion) T constituted by the fixing member 17 and the one end portion 16 </ b> A and the other end portion 16 </ b> B of the belt body 16 is always the outer peripheral surface of the belt body 16. The seam portion T is not in contact with the outer peripheral surfaces of the upper pulley 10 and the lower pulley 11, and the seam portion T, the upper pulley 10 and the lower pulley 11 are damaged, or a part of the belt 15 is cut off. To prevent damage.

That is, if the joint portion T is on the inner surface side of the belt 15, the joint portion T contacts the outer peripheral surfaces of the upper pulley 10 and the lower pulley 11, and the joint portion T is in contact with the joint portion T. Although the load larger than the load applied to the belt body 16 in other portions is applied and the durability of the belt 15 in the joint portion T decreases, the joint portion T of the present application includes not only the fixing member 17 but also the belt body 16. Since the one end 16A and the other end 16B of the first and second ends 16B do not run on the outer peripheral surfaces of the upper pulley 10 and the lower pulley 11 (FIG. 14), the joint T extends around the outer periphery of the upper pulley 10 and the lower pulley 11. The load applied to the belt 15 when passing is hardly changed, and the durability of the belt 15 is improved.
A seam portion T formed by the one side end portion 16A, the other side end portion 16B, and the gripping portion 19 of the pair of gripping bodies 18 is positioned inside the movement locus of the bucket 13 provided on the belt 15, and the seam The portion T is prevented from coming into contact with other members in the main body case 1.
Reference numeral 22 denotes a joint of the joint portion T that can be seen on the inner surface side of the belt 15.

Each holding body 18 is provided with a pressing portion 25 bent in a direction parallel to the moving direction of the belt body 16. The pressing portion 25 acts so that the one side end portion 16 </ b> A and the other side end portion 16 </ b> B of the belt 15 protrude laterally with respect to the outer surface of the belt 15.
In this case, the pressing portion 25 only has to bend to the left and right sides of the gripping portion 19 because the one end 16A and the other end 16B of the belt 15 need only protrude sideways with respect to the outer surface of the belt 15. Thus, a space part (notch part) 26 is formed between the left and right pressing parts 25.
Accordingly, the area of the overlapping portion between the pressing portion 25 of the fixing member 17 and the lower pulley 11 can be reduced by the amount of the space portion 26, and the space between the inner surface of the belt 15 and the outer surface of the lower pulley 11 can be reduced. The area where the grain enters is reduced by the space part 26, and the pulverization of the grain is suppressed.
Therefore, the space part 26 is also formed on the lower surface of the holding part 19 between the left and right pressing parts 25.

Further, if the pressing portion 25 is formed over the entire width of the holding portion 19, the positions of the left and right sides of the pressing portion 25 are slightly shifted with respect to the traveling direction of the belt 15, and a load is applied to the shifted mounting position portion. The belt 15 is moved to the side on which the belt is applied, and the approaching belt 15 returns to its original state by the reaction force. As a result, the belt 15 increases the amplitude width of the left and right reciprocating vibrations. Since the space portion 26 is formed by cutting out the left and right intermediate portions of the belt 25, the load is distributed to the left and right pressing portions 25 of the fixing member 17, and the belt 15 is caused by the displacement of the mounting positions of the left and right ends of the pressing portion 25. Suppresses left and right vibration.
The relationship between the left and right holding parts 25 and the space part 26 is such that the left and right widths of the space part 26 are larger than the left and right widths of the left and right holding parts 25.
Therefore, the area of the overlapping portion between the pressing portion 25 of the fixing member 17 and the lower pulley 11 is further reduced to prevent the grain from entering between the belt 15 and the lower pulley 11, and the belt 15 Suppresses the occurrence of vibration.

In the embodiment, if the left-right width of the left and right pressing portions 25 and the left-right width of the space portion 26 are set to about “4”, the left-right width of the space portion 26 is set to about “7”. , About 4: 7.
Moreover, the holding | suppressing part 25 is comprised so that it may have an angle larger than a right angle in side view between it and the holding part 19 (FIG. 10).
Therefore, when the fixing member 17 passes through the lower surface side of the lower pulley 11, it is possible to suppress a gap from being generated between the belt 15 in the fixing member 17 portion and the outer peripheral surface of the lower pulley 11, and the grains are belt 15. Between the inner surface of the lower pulley 11 and the outer surface of the lower pulley 11 is prevented.
That is, each pressing portion 25 is bent with an angle greater than a right angle in a side view with the holding portion 19, so that the inner surface of the pressing portion 25 in the vertical direction (front and rear) in the side view is a lower pulley. 11, the gap S between the belt 15 in the fixing member 17 portion and the outer peripheral surface of the lower pulley 11 is reduced (FIG. 14), and the grains of the inner surface of the belt 15 and the lower pulley 11 are reduced. Prevent entry into the exterior.

FIGS. 12 and 13 show an embodiment of a pair of upper and lower upper pulleys 10 and 11. The base of the arm 32 extending in the radial direction is fixed to a boss 31 having a mounting hole 30, and a drum is attached to the tip of the arm 32. The inner peripheral surface 33 is fixed.
15 to 18 show another embodiment of the lower pulley 11, in which a disc 35 is fixed to a boss 31 having a mounting hole 30, and an axis parallel to the axial direction of the boss 31 is arranged on the outer periphery of the disc 35. A plurality of members 36 are provided at predetermined intervals, and the drum 33 is omitted.
In this embodiment, the shaft member 36 is positioned radially outward from the outer periphery of the disc 35, and the shaft member 36 contacts the inner peripheral surface of the belt body 16, so that the outer periphery of the lower pulley 11 is configured. The contact area between the belt body 16 and the inner peripheral surface of the belt body 16 is reduced to prevent the grain from being caught.
In this case, in particular, the fixing member 17 and the stopper member 21 of the joint portion T move on the outer surface side of the belt body 16 and do not directly contact the lower pulley 11. Even if the contact area is reduced by forming the thin shaft about one degree, the joint T does not get caught by the disc 35, and the outer circumference of the lower pulley 11 is secured while ensuring the certainty of movement of the belt 15. The contact area with the inner peripheral surface of the belt body 16 is reduced to prevent the grain from being caught.

In the embodiment, the diameter of the disc 35 is about 260 millimeters, and the diameter of the shaft member 36 is 24 millimeters.
A part of the outer surface of the shaft member 36 is so-called chamfered to form a flat surface 39.
Reference numeral 40 denotes a bottom plate of the lower case 2 of the case 1, which is formed in an arc shape centering on the axis of the lower pulley 11.
Further, each bucket bucket 13 is provided with a sliding contact 42 formed by an elastic member that is in sliding contact with the bottom plate 40.

(Operation of Example)
When the drive motor 8 is driven to rotate the belt 15 and the bucket 13 is moved, when the grain is put in from the supply hopper 3, the grain is beaten and raised by the bucket 13 that rotates, Radiated at the top and discharged from the upper case 5.
A plurality of the buckets 13 are provided on the outer peripheral surface of the belt 15 at a predetermined interval. Since the belt 15 is wound around the pair of upper and lower upper pulleys 10 and 11, the belt 15 is endless. Forming.
When the belt 15 is configured to be endless, it is formed into a seamless belt from the beginning by molding resin or the like, and a single sheet having a predetermined length separated from both ends of the one end 16A and the other end 16B. If the belt body 16 having a thickness is formed and the one end portion 16A and the other end portion 16B of the belt body 16 are connected to form an endless shape, the belt body 16 can be easily manufactured and the manufacturing cost can be reduced.

However, when the one end 16A and the other end 16B of the belt body 16 are simply connected, the joint T connecting the one end 16A and the other end 16B of the belt body 16 becomes the upper pulley 10 and Each time the seam portion T rides on the outer peripheral surface of the upper pulley 10 and the lower pulley 11 in contact with the outer surface of the lower pulley 11, the belt body 16 other than the seam portion T is provided at the seam portion T. A load larger than the load applied to the belt 15 is applied, and the durability of the belt 15 at the joint portion T is reduced. The joint portion T of the present application is one side of the belt body 16 of the joint portion T with respect to the inner surface of the moving belt 15. Since the end portion 16A and the other end portion 16B are positioned on the outer side, the one end portion 16A and the other end portion 16B of the belt body 16 of the joint portion T are connected to the upper pulley 10 and the lower pulley. Since the one end 16A and the other end 16B do not come into contact with the outer peripheral surfaces of the upper pulley 10 and the lower pulley 11 when they pass through the outer periphery of the upper pulley 11, they do not get on the upper pulley 10; Further, the load applied to the belt 15 when passing the outer periphery of the lower pulley 11 is hardly changed, and the durability of the belt 15 is improved.

The joint portion T bends one end 16A and the other end 16B of the belt body 16 toward the outer peripheral side of the belt body 16, and moves the one end 16A and the other end 16B of the belt body 16 up and down. Since the one end 16A and the other end 16B are fixed by the fixing member 17, the seam T formed by the one end 16A and the other end 16B and the fixing member 17 is overlapped. , And is positioned outside the inner surface of the moving belt 15.
That is, in the bucket conveyor, since the bucket 13 is originally located on the outer surface side of the belt 15, there is no problem in positioning the joint portion T on the outer surface side of the belt 15, and the joint portion T is located on the upper pulley 10 and the lower side. This is a rational configuration for preventing contact with the outer peripheral surface of the pulley 11.
The fixing member 17 of the joint portion T is constituted by a pair of holding bodies 18, and the holding body 18 has a holding portion 19 that intersects the moving direction of the belt body 16. The end portion 16A and the other side end portion 16B are stacked vertically (front and rear), and the one side end portion 16A and the other side end portion 16B are sandwiched by the holding body 18, and the one side end portion 16A and the other side end portion are held. Since the portion 16B and the pair of holding bodies 18 are fixed by the stopper member 21, the one side end portion 16A and the other side end portion 16B and the pair of holding bodies 18 are firmly fixed.

And since the one side clamping part 19A and the other side clamping part 19B of a pair of clamping body 18 clamp each one side edge part 16A and the other side edge part 16B from the up-and-down side, the fixation which comprises a part of joint part T is comprised. The member 17 is also positioned outside the inner surface of the moving belt 15 and can prevent contact with the outer peripheral surfaces of the upper pulley 10 and the lower pulley 11, and the belt 15, the upper pulley 10 and the lower pulley 11 can be prevented from contacting each other. Improves durability and suppresses generation of vibrations and abnormal noise (noise).
That is, if the joint portion T is on the inner surface side of the belt 15, the joint portion T contacts the outer peripheral surfaces of the upper pulley 10 and the lower pulley 11, and the joint portion T is in contact with the joint portion T. Although the load larger than the load applied to the belt body 16 in other portions is applied and the durability of the belt 15 in the joint portion T decreases, the joint portion T of the present application includes not only the fixing member 17 but also the belt body 16. The fixing member 17 does not run on the outer peripheral surfaces of the upper pulley 10 and the lower pulley 11 as well as the one end portion 16A and the other end portion 16B (FIG. 14). The load applied to the belt 15 when passing the outer periphery of the side pulley 11 is hardly changed, and the durability of the belt 15 is improved.

Since each holding body 18 is provided with a pressing portion 25 bent in a direction parallel to the moving direction of the belt body 16, the pressing portion 25 includes one end 16 </ b> A and the other end 16 </ b> B of the belt body 16. The belt 15 is held so as to protrude laterally with respect to the outer surface of the belt 15, and the joint portion T is always positioned on the outer side with respect to the inner surface of the moving belt 15.
Further, since the pressing portion 25 suppresses unnecessary bending of the boundary portion between the one end portion 16A and the other end portion 16B of the belt body 16 and the intermediate portion intermediate belt portion 16C of the belt body 16, the belt 15 Does not reduce the durability.
In this case, the pressing portion 25 only has to bend to the left and right sides of the gripping portion 19 because the one end 16A and the other end 16B of the belt 15 need only protrude sideways with respect to the outer surface of the belt 15. Since the space 26 is formed between the left and right pressing portions 25, the area of the overlapping portion between the pressing portion 25 of the fixing member 17 and the lower pulley 11 is the space portion. 26, the area where the grain enters between the inner surface of the belt 15 and the outer surface of the lower pulley 11 is reduced by the space portion 26, and the pulverization of the grain is suppressed.

Moreover, since the space part 26 is also formed in the lower surface of the holding part 19 between the right and left pressing parts 25, the area where the lower surface of the holding part 19 and the outer surface of the lower pulley 11 overlap is reduced by the space part 26. And suppress grain crushing.
The relationship between the left and right holding portions 25 and the space portion 26 is such that the left and right widths of the space portion 26 are larger than the left and right widths of the left and right holding portions 25, so that the holding portion 25 of the fixing member 17 and the lower pulley 11 The area of the overlapping portion is further reduced to prevent the grain from entering between the belt 15 and the lower pulley 11, and the vibration of the belt 15 is suppressed.
Further, since the pressing portion 25 is configured to bend at an angle larger than a right angle in a side view with the holding portion 19 (FIG. 10), the lower surface side of the lower pulley 11 is pressed against the pressing portion 25. Is passed, the gap S between the belt 15 in the holding portion 25 and the outer peripheral surface of the lower pulley 11 is reduced, and the grains enter between the inner surface of the belt 15 and the outer surface of the lower pulley 11. To prevent.

  Accordingly, in another embodiment of the lower pulley 11 of FIGS. 15 to 18, the disc 35 is fixed to the boss 31 having the attachment hole 30, and the outer periphery of the disc 35 is parallel to the axial direction of the boss 31. Since a plurality of shaft members 36 are provided at predetermined intervals, the shaft member 36 abuts on the inner peripheral surface of the belt 15 and the outer periphery of the disc 35 does not come into contact with the outer periphery of the lower pulley 11. The contact area with the inner peripheral surface of the belt 15 is reduced to prevent the grain from being caught.

  DESCRIPTION OF SYMBOLS 1 ... Main body case, 2 ... Lower case, 3 ... Supply hopper, 4 ... Intermediate case, 5 ... Upper case, 6 ... Discharge port, 8 ... Drive motor, 10 ... Upper pulley, 11 ... Lower pulley, 13 ... Bucket, DESCRIPTION OF SYMBOLS 14 ... Long hole, 15 ... Belt, 16 ... Belt body, 17 ... Fixing member, 18 ... Holding body, 19 ... Holding part, 20 ... Mounting hole, 21 ... Stopping member, 25 ... Holding part, 26 ... Space part, 30 DESCRIPTION OF SYMBOLS ... Mounting hole, 31 ... Boss, 32 ... Arm, 33 ... Drum, 35 ... Disc, 36 ... Shaft member, 40 ... Bottom plate, 42 ... Sliding contact body.

Claims (10)

An upper pulley 10 and a lower pulley 11 are mounted on the upper and lower sides of a vertically long case 1 provided with a supply hopper 3 at the lower portion and an upper case 5 at the upper portion, and the upper pulley 10 and the lower pulley 11 are A belt 15 having a plurality of buckets 13 provided around a predetermined interval is wound around, and the belt 15 is a belt body 16 having a single predetermined length in which both ends of one end 16A and the other end 16B are separated. The one side end portion 16A and the other side end portion 16B are connected to each other by a fixing member 17, and the one side end portion 16A and the other side end portion 16B are connected to each other by a fixing member 17. The bucket conveyor device in which the constructed seam T is positioned outside the inner surface of the moving belt 15. In Claim 1, the said fixing member 17 is comprised by a pair of clamping body 18 which has the clamping part 19 which cross | intersects the moving direction of the belt body 16, and said one side edge part 16A and the other side edge part 16B are the said belt 15. The one end portion 16A is protruded outward with respect to the inner surface of the belt body 16 and the inner surface of the one end portion 16A of the belt body 16 is in contact with the inner surface of the other end portion 16B. And the other side end portion 16B are clamped by the gripping portions 19 of the pair of gripping bodies 18, and the one side end portion 16A, the other side end portion 16B and the pair of gripping portions 19 are fixed by a stopper member 21. Bucket conveyor device. In Claim 2, the said stop member 21 has the axial direction substantially parallel to the moving direction of the belt 15, and penetrates the holding part 19 of the one side edge part 16A, the other side edge part 16B, and the pair of holding bodies 18. And the bucket conveyor apparatus which fixed 16 A of said 1 side edge parts, the other edge part 16B, and a pair of clamping body 18. In Claim 2 or Claim 3, the seam part T comprised by the said one side edge part 16A, the other side edge part 16B, and the clamping part 19 of a pair of clamping body 18 is the movement locus | trajectory of the bucket 13 provided in the said belt 15 Bucket conveyor device positioned more inside. 5. The bucket conveyor device according to claim 2, wherein the holding portion 19 of each holding body 18 of the fixing member 17 is bent in a direction parallel to the moving direction of the belt body 16 and the pressing portion 25 is provided. The bucket conveyor device according to claim 5, wherein the pressing portion 25 is formed integrally by bending the left and right sides of the holding portion 19, and a notched space portion 26 is formed between the left and right pressing portions 25. The bucket conveyor device according to claim 6, wherein the space portion 26 is also formed on the lower surface of the holding portion 19 between the left and right pressing portions 25. 8. The bucket conveyor device according to claim 6, wherein the left and right pressing portions 25 and the space portion are formed so that a left and right width of the space portion is larger than a left and right width of the left and right holding portions. The bucket conveyor device according to claim 5, claim 6, claim 7, or claim 8, wherein the pressing portion 25 is bent at an angle larger than a right angle in a side view with the holding portion 19. The belt body 16 having a lateral width wider than the lateral width of the bucket 13 to be attached and having a predetermined thickness is cut into a single sheet having a predetermined length, and one end portion is formed at both ends of the belt body 16. 16A and the other side end portion 16B are formed, respectively, and the one side end portion 16A and the other side end portion 16B of the belt body 16 are bent toward the outer surface side of the belt body 16, respectively. And the inner surface of the other side end portion 16B are opposed to each other, and the holding portion 19 of the fixing member 17 is applied to each of the outer surface of the one side end portion 16A and the outer surface of the other side end portion 16B. The end portion 16A and the other side end portion 16B are sandwiched by a pair of fixing members 17, and the pair of fixing members 17 are fixed together with the one side end portion 16A and the other side end portion 16B by the stop member 21, and the fixing member 17 and one side are fixed. By the end 16A and the other end 16B Method of assembling a bucket conveyor apparatus that constituted joint portion T is moved is located outside against the inner surface of the belt 15.

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