Lifting apparatus for grain drying facility

Abstract

To provide a lifting device of a grain drying facility capable of improving maintainability of a lift.SOLUTION: An upper part of an elevator casing 51 of an elevator 5A installed in a country elevator is positioned on the upper side of a top plate 62 by penetrating the top plate 62 of an elevator building part. An opening part 53b is arranged in an upper part of an upper side casing 53 of an elevator casing 51, and the opening part 53b is closed by a cover part 57. When maintenance such as replacement of the belt with the bucket is performed, the lid 57 is removed to open the 53b of the opening.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a lifting device for a grain drying facility. [Background technology]

[0002] Conventionally, grain drying facilities such as country elevators and rice centers are equipped with an elevator that transports grain to a predetermined height so that the grain can be loaded from above into a storage facility (hereinafter sometimes referred to as a silo) provided in the grain drying facility.

[0003] This type of lifting device is equipped with an elevator with a bucket belt built into the elevator casing, and the received grain such as raw rice is transported to the top of the silo by the operation of the bucket belt (the grain placed in the bucket is transported upward by the running belt), and can then be loaded into the silo from above via a chute, relay belt conveyor, and moving belt conveyor connected to the grain outlet of the elevator.

[0004] Furthermore, as disclosed in Patent Document 1, for example, the upper part of the elevator, the chute, the intermediate belt conveyor, and the moving belt conveyor are installed inside the roof structure (building) so that the grain being transported does not get wet during rainfall. In other words, the upper part of the elevator is covered by the ceiling (top plate) of the building. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Jikko No. 63-26349 Summary of the Invention [Problem to be solved by the invention]

[0006] However, elevators require maintenance such as replacing the bucket belt after extended use. When performing such maintenance, large-scale construction is required because the bucket belt cannot be removed or a new bucket belt cannot be installed from above the elevator. To date, no proposals based on technical ideas have been made to improve the elevator configuration in consideration of such maintainability.

[0007] The present invention has been made in view of the above points, and an object of the present invention is to provide an elevator for a grain drying facility that can improve the ease of maintenance of the elevator. [Means for solving the problem]

[0008] The solution of the present invention to achieve the above object is characterized in that an elevator device for a grain drying facility is provided with an elevator for supplying grain to a storage facility for storing grain, and an opening is provided above the elevator.

[0009] The concept of an elevator here is a structure in which a bucket belt is built into an elevator casing, as described above, and the concept of an elevator device includes the elevator, a control device for operating the elevator (operating the bucket belt), and other components.

[0010] According to the above-mentioned features, when performing maintenance such as replacing the bucket belt, it is possible to use the opening provided on the upper side of the elevator, thereby improving the ease of maintenance of the elevator.

[0011] More specifically, at least a portion of the elevator, including the opening, penetrates the top plate of a building of the grain drying facility and protrudes outward from the building.

[0012] In conventional technology, the entire elevator was installed inside the grain drying facility building, so the top of the elevator was covered by the top plate of the building, and maintenance work had to be carried out in a narrow space.However, with this solution, the space outside the building becomes the maintenance work space, which greatly improves maintainability.

[0013] In addition, a lid is provided at the opening of the elevator to enable the opening to be opened and closed.

[0014] By locating the elevator opening outside the building, there is a possibility that rainwater may seep into the elevator, but by covering this opening with a lid except during maintenance work, it is possible to prevent rainwater from seeping in. This prevents the durability of the elevator from deteriorating and helps prevent deterioration of the quality of the stored material.

[0015] In addition, a drainage gutter is provided around the outer periphery of an area located inside the top plate of the building at the portion where the roof penetrates the top plate.

[0016] If rainwater seeps in between the elevator and the building roof, it will be caught by the drainage gutter. This prevents deterioration of the elevator's durability due to rainwater seepage and also prevents deterioration of the quality of the stored materials.

[0017] In addition, a suppression member for suppressing rainwater from entering the building is provided around the portion of the building that protrudes outward.

[0018] This also makes it possible to suppress deterioration in the durability of the elevator due to the infiltration of rainwater, and also to prevent deterioration in the quality of the stored material. [Effects of the Invention]

[0019] In the present invention, an opening is provided above the elevator provided in the lifting device of the grain drying facility, which makes it possible to use the opening above the elevator when performing maintenance such as replacing the bucket belt, thereby improving maintainability. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a plan view showing an outline of a country elevator according to an embodiment. FIG. [Figure 2] FIG. 2 is a perspective view showing a part of a silo building in the country elevator according to the embodiment. [Figure 3] FIG. 3 is a perspective view showing the inside of the elevator building portion in FIG. 2. [Figure 4] FIG. 2 is a side view showing the upper part of the elevator according to the first embodiment. [Figure 5] 5 is a side view of the elevator according to the first embodiment as seen from the right side of FIG. 4, showing a state in which a cover is removed. FIG. [Figure 6] FIG. 10 is a side view showing a part of the upper part of the elevator according to the second embodiment in a cutaway view. [Figure 7] FIG. 10 is a side view showing a part of the upper part of an elevator according to a third embodiment in a cutaway view. [Figure 8] FIG. 10 is a side view showing the upper part of the elevator according to the fourth embodiment. [Figure 9] FIG. 10 is a side view showing the upper part of the elevator according to the fifth embodiment. [Figure 10] FIG. 13 is a side view showing the upper part of the elevator according to the sixth embodiment. [Figure 11] 11 is a cross-sectional view of a portion indicated by a dashed dotted line A in FIG. 10. [Figure 12] FIG. 13 is a perspective view showing an upper portion of an elevator according to a seventh embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0021] An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the present invention is applied to a lifting device installed in a country elevator as a grain drying facility. The lifting device according to the present invention may also be installed in a rice center.

[0022] -Outline of Country Elevator- Before describing the elevators that constitute the elevator device, the general configuration of a country elevator in which the elevators are installed will be described.

[0023] Fig. 1 is a plan view showing an outline of a country elevator CE according to this embodiment. As shown in Fig. 1, the country elevator CE includes a machine building 1, which includes a receiving facility 11 equipped with a receiving hopper for receiving harvested grains such as raw rice, a preparation facility 12 equipped with a rice huller, a shipping facility 13 equipped with a weighing and packaging device and a brown rice tank, a rice husk storehouse 14 for temporarily storing rice husks generated during the hulling process, and an operation room / office 15. The machine building 1 also includes various conveyors and other transport equipment (not shown) for transporting grains between the above facilities, between the facilities and elevators 5A and 5B (described later), and between the facilities and drying facility 21 (described later).

[0024] In addition, in the machinery building 1, truck scales 16 and 17 for measuring the weight of trucks that bring in and out grain are installed near the operation room / office 15 and the shipping facility 13, respectively.

[0025] In addition, outside the machine building 1, there is a drying facility 21 housing multiple grain dryers, and a dust collection facility 22 that collects impurities such as dust, straw, and vegetation generated within the facility.

[0026] Two rows of silos 3A and 3B for storing grain are installed near the preparation equipment 12 and the shipping equipment 13. Specifically, eight main silos 31-38 are arranged side by side in two rows. The arrangement direction of each main silo 31-38 in these silo rows 3A and 3B is perpendicular to the arrangement direction of each facility (receiving facility 11, preparation equipment 12, shipping equipment 13) installed in the machine building 1. The space surrounded by the four main silos 31, 32, 35, and 36 located near the installation positions of the preparation equipment 12 and the shipping equipment 13 is defined as an elevator installation space 41, and two elevators 5A and 5B are installed in this elevator installation space 41. The space surrounded by each main silo 31-38 other than the elevator installation space 41 is defined as gap silos 42 and 43. These main silos 31 to 38 and gap silos 42 and 43 correspond to the storage facilities referred to in the present invention. In the following explanation, the direction in which the equipment 11, 12, and 13 installed in the machine building 1 is arranged is defined as the X direction, and the horizontal direction perpendicular to the X direction (the direction in which the main silos 31 to 38 are arranged in the silo rows 3A and 3B) is defined as the Y direction.

[0027] As shown in FIG. 3 (a perspective view showing the interior of an elevator building portion 61, described later), each elevator 5A, 5B is provided with a discharge chute 56, and below this discharge chute 56 are disposed the conveyance starting ends of a pair of upper cross-feed conveyors (not shown) that are installed horizontally on the top plates of the silo rows 3A, 3B. These upper cross-feed conveyors transport grain along the extension direction of each silo row 3A, 3B, and transport grain discharged from the discharge chute 56, then sort and feed the grain through shutter devices provided corresponding to each of the main silos 31-38 and the gap silos 42, 43. Meanwhile, below each of the silos 31-38, 42, 43, lower cross-feed conveyors (not shown) are disposed to transport grain between each of the silos 31-38, 42, 43 and each facility in the machine building 1.

[0028] 2 and 3 are perspective views showing a portion of the silo building 6 in the country elevator CE. The upper cross-feed conveyor is disposed in a lower portion of the silo building 6 above the silos 31-38, 42, and 43 (on the silo top plate) so that the grain being transported by the upper cross-feed conveyor does not get wet during rainfall. Furthermore, the upper side of the silo building 6, in which the elevators 5A and 5B are installed, is configured as an elevator building portion 61 whose ceiling is set higher than the other portions, and a top plate 62 of this elevator building portion 61 covers the upper side of the elevator installation space 41.

[0029] 3 shows the interior of the elevator building portion 61 by omitting the wall 64, 64, ... of the elevator building portion 61 on the front side of the drawing and the top plate 62. As shown in this Fig. 3, the elevator building portion 61 comprises a skeleton 63 formed by combining a plurality of steel materials, a plurality of wall bodies 64, 64, ... that form the side walls of the elevator building portion 61, and the top plate 62 (see Fig. 2) disposed on the top of the elevator building portion 61.

[0030] The structure of the skeleton 63 includes four H-shaped steel columns 63a, 63b, 63c, and 63d that form the corners of the elevator building portion 61, and beams 63e, 63f, 63g, and 63h that extend along the X or Y direction and connect the upper ends of the columns 63a, 63b, 63c, and 63d. The beams 63e and 63g, located on both sides of the Y direction, are connected at their centers in the X direction by a single beam 63i that also extends along the Y direction. The beams 63f and 63h, located on both sides of the X direction, are connected at their centers in the Y direction by two C-shaped steel beams 63j and 63k that also extend along the X direction. A top plate 62 is disposed to cover the top of the skeleton 63 (see FIG. 2). In the country elevator CE according to this embodiment, the top plate 62 is configured with a folded-plate roof. The relationship between the beam members 63j, 63k and the top plate 62 in the elevator building portion 61 and the elevators 5A, 5B will be described later.

[0031] -Elevator configuration- Next, several embodiments of the elevators 5A and 5B, which are a feature of this embodiment, will be described.

[0032] (First embodiment) FIG. 4 is a side view (side view seen from the Y direction) showing the upper part of the elevator 5A (5B) according to this embodiment. FIG. 5 is a side view (side view seen from the X direction) of the elevator 5A (5B) as seen from the right side of FIG. 4, showing a state in which a cover 57 (see FIG. 4), which will be described later, has been removed. As shown in FIGS. 2, 3, and 4, each of the elevators 5A and 5B is disposed so that its upper part penetrates a top plate 62 of an elevator building portion 61 and protrudes above the top plate 62. The specific configurations of the elevators 5A and 5B will be described below. Because the configurations of the elevators 5A and 5B are identical, only one of the elevators, elevator 5A, will be described here.

[0033] As is well known, the elevator 5A is used to transport received grain to above the silos 31-38, 42, and 43 by operating a bucket belt. The elevator 5A has a configuration in which the bucket belt (not shown) is built into an elevator casing 51. As shown in FIGS. 4 and 5, the elevator casing 51 of the elevator 5A according to this embodiment has a configuration in which a lower casing 52 and an upper casing 53 are connected via a connecting casing 54.

[0034] Lower casing 52 is a cylindrical body that is rectangular in plan view, and has a belt with buckets built into it. As this belt with buckets operates, grain placed in the buckets is transported upward inside lower casing 52 until it reaches the upper end of lower casing 52. A chute box 55 (see Figures 3 and 5) is attached to the side of lower casing 52, and the discharge chute 56 is connected to the bottom of this chute box 55.

[0035] Upper casing 53 is a cylindrical body having a rectangular shape in a plan view, and is connected to the upper side of lower casing 52 via connecting casing 54. The upper end of upper casing 53 is open, and this portion forms opening 53b. Therefore, upper casing 53 corresponds to a part including the opening of the elevator as defined in the present invention.

[0036] Like the upper casing 53, the connecting casing 54 is also formed of a cylindrical body having a rectangular shape in a plan view.

[0037] Horizontally extending flanges 52a, 53a, 54a, and 54b are provided at the upper end of the lower casing 52, the upper and lower ends of the connecting casing 54, and the lower end of the upper casing 53, respectively. The flange 52a at the upper end of the lower casing 52 is fastened to the flange 54b at the lower end of the connecting casing 54 with fasteners such as bolts, and the flange 54a at the upper end of the connecting casing 54 is fastened to the flange 53a at the lower end of the upper casing 53 with fasteners such as bolts. As a result, the lower casing 52, the connecting casing 54, and the upper casing 53 are connected to each other in the vertical direction, with the internal spaces of the lower casing 52, the connecting casing 54, and the upper casing 53 communicating with each other. As described above, the upper end of the upper casing 53 is provided with an opening 53b (in the state shown in FIG. 4, this opening 53b is closed by a lid 57, which will be described later). As a result, the internal space of the lower casing 52 communicates with the opening 53b via the internal space of the connecting casing 54 and the internal space of the upper casing 53.

[0038] The dimension of the upper casing 53 in the Y direction substantially coincides with the distance between the beam members 63j, 63k. That is, as shown in FIG. 3, outer wall surfaces on both sides of the Y direction of the upper casing 53 abut against the beam members 63j, 63k, thereby supporting the upper casing 53 in the Y direction. Also, as shown in FIGS. 3 and 4, the beam members 63j, 63k are connected to each other by two beam members 63m, 63n made of C-shaped steel and extending along the Y direction. The distance between these beam members 63m, 63n substantially coincides with the dimension of the upper casing 53 in the X direction. That is, outer wall surfaces on both sides of the X direction of the upper casing 53 abut against the beam members 63m, 63n, thereby supporting the upper casing 53 in the X direction. In this way, beam members 63j, 63k, 63m, and 63n are in contact with the outer wall surfaces of upper casing 53, respectively, so that elevator casing 51 is supported by body 63.

[0039] Furthermore, at least a portion of the upper casing 53 is disposed so as to penetrate the top plate 62 of the elevator building portion 61. For example, the upper casing 53 is disposed so as to protrude from the upper surface of the top plate 62 by approximately 500 mm. This value is not limited to this. For this reason, the top plate 62 is provided with an opening 62a through which the upper casing 53 penetrates. The shape of this opening 62a in a plan view is set slightly larger than the shape of the upper casing 53 in a plan view. In other words, the dimension of the opening 62a in the X direction is set slightly larger than the dimension of the upper casing 53 in the X direction, and the dimension of the opening 62a in the Y direction is set slightly larger than the dimension of the upper casing 53 in the Y direction. Then, as shown in FIG. 4, a rising member 65 is attached to the upper surfaces of the beam members 63j, 63k so as to stand along the inner edge of the opening 62a (the rising member 65 is omitted in FIGS. 2 and 3). The rising member 65 is disposed in a frame shape around the entire inner edge of the opening 62a, thereby covering the outer portion of the upper casing 53. This makes it possible to prevent rainwater from entering the opening 62a from the side.

[0040] A drainage gutter 8 is provided below the opening 62a to catch rainwater that has entered through the opening 62a. The drainage gutter 8 is groove-shaped and open at the top, and is connected to the outer wall surface of the upper casing 53 and the upper surfaces of the beam members 63m, 63n, respectively, and is formed in a frame shape in a plan view so as to cover the entire bottom side of the opening 62a. A drainage channel (not shown) is connected to the drainage gutter 8, and the rainwater caught by the drainage gutter 8 is discharged to the outside of the silo building 6 via the drainage channel.

[0041] A lid 57 is removably attached to the top of the upper casing 53. This lid 57 is provided to prevent rainwater from entering the interior of the upper casing 53 by covering the entire opening 53b at the top of the upper casing 53. This lid 57 has a pentagonal vertical wall 57a extending in a direction perpendicular to the Y direction and a roof 57b continuous with the upper side of the vertical wall 57a. The upper edge of the vertical wall 57a is inclined downward toward both outer sides in the X direction, so that the roof 57b also has a so-called gable roof shape inclined downward toward both outer sides in the X direction, allowing rainwater to flow along the X direction.

[0042] A flange 57c extending horizontally outward is provided around the entire periphery of the lower end of the lid 57. A connecting member 58 is joined to the upper end of the upper casing 53, shaped to surround the entire periphery of the upper end. A flange 58a extending horizontally outward is provided around the entire periphery of the upper end of the connecting member 58. The flange 57c of the lid 57 and the flange 58a of the connecting member 58 are fastened together with fastening members such as bolts. This allows the lid 57 to cover an opening 53b at the top of the upper casing 53. The lid 57 can be removed from the top of the upper casing 53 by releasing the fastening members such as bolts that fasten the flanges 57c and 58a together. With the lid 57 removed, the opening 53b at the top of the upper casing 53 is exposed upward. This means that the interior of the elevator casing 51 is exposed upward.

[0043] In addition, in the above-mentioned configuration, caulking material is used appropriately at the joints of each component to prevent rainwater from entering the inside of the elevator casing 51 and the inside of the elevator building portion 61.

[0044] As described above, in this embodiment, the elevator casing 51 has an opening 53b on the upper side (more specifically, the top of the upper casing 53), and the opening 53b is covered by a removable lid 57. Therefore, when performing maintenance such as replacing the bucket belt, as shown in FIG. 5 , the lid 57 is removed to open the opening 53b, allowing maintenance work to be performed using the opening 53b. For example, the bucket belt can be carried in and out through the opening 53b. This improves the maintainability of the elevators 5A and 5B. In particular, at least a portion of the upper casing 53 penetrates the top plate 62 of the elevator building portion 61 and protrudes outward from the elevator building portion 61. In conventional technology, the top of the elevator is covered by the top plate of the building, making it impossible to perform maintenance work from above the elevator, and maintenance work had to be carried out in a narrow space. However, according to this embodiment, the space outside the elevator building portion 61 becomes the maintenance work space, thereby significantly improving maintainability.

[0045] Furthermore, except when maintenance work is being performed, opening 53b can be covered with lid 57 to prevent rainwater from entering elevator casing 51. This makes it possible to prevent deterioration in the durability of elevators 5A and 5B (especially the durability of the interior of the elevators), and to prevent deterioration in the quality of stored material (grains).

[0046] (Second embodiment) Next, a second embodiment will be described. This embodiment differs from the first embodiment in the configuration for preventing rainwater from entering the opening 62a. Since the other configurations are substantially the same as those of the first embodiment, differences from the first embodiment will be mainly described here.

[0047] Fig. 6 is a side view showing a part of the upper part of an elevator 5A according to this embodiment in a cutaway view. In Fig. 6, the same members as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.

[0048] As shown in FIG. 6, the lid portion 57 in this embodiment has a roof portion 57b that is longer than that in the first embodiment (longer in both the X and Y directions), and the position of the outer end of the roof portion 57b in a plan view is located outside the position where the rising member 65 is disposed.

[0049] According to this embodiment, the upper side of the opening 62a between the upper casing 53 and the rising member 65 is covered by the roof portion 57b, so that the intrusion of rainwater through this opening 62a can be more effectively suppressed than in the first embodiment. Therefore, the drainage gutter 8 provided in the first embodiment can be eliminated.

[0050] (Third embodiment) Next, a third embodiment will be described. This embodiment also differs from the first embodiment in the configuration for preventing rainwater from entering the opening 62a. The other configurations are substantially the same as those of the first embodiment, so here again, differences from the first embodiment will be mainly described.

[0051] 7 is a side view showing a part of the upper part of the elevator 5A according to this embodiment in a cutaway view. As shown in this Fig. 7, in this embodiment, an umbrella member 66 is disposed between the lid part 57 and the rising member 65.

[0052] The connecting member 58 in this embodiment has a vertical portion 58b extending downward from the outer end of the flange 58a. The vertical portion 58b has a cylindrical shape with the central portion of the upper casing 53 as its center.

[0053] The umbrella member 66 comprises a first tubular portion 66a fastened to the vertical portion 58b of the connecting member 58 with a fastening member such as a bolt, a horizontal portion 66b extending horizontally outward from the lower end of the first tubular portion 66a, and a second tubular portion 66c extending vertically downward from the outer end of the horizontal portion 66b and fastened to the outer surface of the rising member 65 with a fastening member such as a bolt.

[0054] With this configuration, the upper side of the opening 62a between the upper casing 53 and the rising member 65 is covered by the umbrella member 66, and rainwater hardly seeps in through this opening 62a. Therefore, in this embodiment as well, the drainage gutter 8 provided in the first embodiment can be eliminated.

[0055] (Fourth embodiment) Next, a fourth embodiment will be described. This embodiment also differs from the first embodiment in the configuration for preventing rainwater from entering the opening 62a. The other configurations are substantially the same as those of the first embodiment, so here again, differences from the first embodiment will be mainly described.

[0056] Fig. 8 is a side view of the upper part of elevator 5A according to this embodiment. As shown in Fig. 8, in this embodiment, the length of flange 58a of connecting member 58 is set longer than that of the first embodiment, and the outer end of flange 58a is positioned above rising member 65 in a plan view.

[0057] In this embodiment, the pressure inside the silo building 6 is set higher than the external pressure (atmospheric pressure). The pressure inside the silo building 6 is adjusted by a ventilation device (not shown). That is, the ventilation device sets the pressure inside the silo building 6 higher than the atmospheric pressure by introducing external air into the silo building 6. This makes it possible to generate an upward airflow at the opening 62a, as shown by the dashed arrow in FIG. 8, and this airflow prevents rainwater from entering through the opening 62a.

[0058] As described above, according to this embodiment, the upper side of the opening 62a between the upper casing 53 and the rising member 65 is covered by the flange 58a, and an upward airflow is generated at the opening 62a, so that almost no rainwater seeps in through this opening 62a. Therefore, the drainage gutter 8 provided in the first embodiment can be eliminated.

[0059] (Fifth embodiment) Next, a fifth embodiment will be described. In this embodiment, differences from the first embodiment will also be mainly described.

[0060] Fig. 9 is a side view of the upper part of the elevator 5A according to this embodiment. As shown in Fig. 9, the elevator 5A according to this embodiment does not have the rising member 65 described above. That is, a drainage gutter 8 is provided below the opening 62a to catch rainwater that has entered through the opening 62a. As in the first embodiment, a drainage channel (not shown) is connected to the drainage gutter 8, and the rainwater caught by the drainage gutter 8 is discharged to the outside of the silo building 6 via the drainage channel.

[0061] (Sixth embodiment) Next, a sixth embodiment will be described. This embodiment also differs from the first embodiment in the configuration for preventing rainwater from entering the opening 62a. The other configurations are substantially the same as those of the first embodiment, so here again, differences from the first embodiment will be mainly described.

[0062] Fig. 10 is a side view showing the upper part of the elevator 5A according to this embodiment. Fig. 11 is a cross-sectional view of the part indicated by the dashed line A in Fig. 10. As shown in Figs. 10 and 11, in this embodiment, a suppression member 7 for suppressing rainwater from entering the elevator building portion 61 is disposed between the upper casing 53 and the top plate 62.

[0063] The suppression member 7 has a configuration in which a first member 71, a second member 72, and a third member 73 are integrally connected.

[0064] The first member 71 has a contact portion 71a that contacts the outer wall surface of the upper casing 53, a horizontal portion 71b that extends horizontally outward from the lower end of the contact portion 71a, a vertical portion 71c that extends downward from the outer end of the horizontal portion 71b, and a locking portion 71d that is connected to the lower end of the vertical portion 71c and bent upward.

[0065] The second member 72 is disposed below the first member 71 and includes a contact portion 72a that contacts the outer wall surface of the upper casing 53, a horizontal portion 72b that extends horizontally outward from the lower end of the contact portion 72a, and a locking portion 72c that is continuous with the upper end of the contact portion 72a, is bent downward, and is locked with the locking portion 71d of the first member 71. Screws SC are inserted between the contact portion 71a of the first member 71 and the upper casing 53, and between the contact portion 72a of the second member 72 and the upper casing 53, respectively, to fasten the respective members together with the screws.

[0066] The third member 73 is formed in a flat plate shape and has an opening 73a that roughly matches the shape of the upper casing 53 in a plan view, and the upper casing 53 is inserted into this opening 73a. In addition, the lower surface of the horizontal portion 72b of the second member 72 is joined to the upper surface of the third member 73.

[0067] Furthermore, caulking material CM is applied between the outer wall surface of the upper casing 53 and the joint 71a of the first member 71, and between the outer wall surface of the upper casing 53 and the locking portion 72c of the second member 72, to prevent rainwater from entering.

[0068] In this embodiment, almost no rainwater seeps in through the opening 62a, so the drainage gutter 8 provided in the first embodiment can be eliminated.

[0069] Seventh embodiment Next, a seventh embodiment will be described. This embodiment differs from the first embodiment in the configuration of the lid portion 57. The other configurations are substantially the same as those of the first embodiment, so here again, differences from the first embodiment will be mainly described.

[0070] Fig. 12 is a perspective view showing the upper part of the elevator 5A according to this embodiment. As shown in Fig. 12, the elevator 5A according to this embodiment has gripping portions 57d, 57d provided on the lid portion 57. Specifically, the gripping portions 57d extending in the X direction are attached to the roof portion 57b of the lid portion 57 at two locations along the Y direction. As a result, when removing the lid portion 57 from the top of the upper casing 53, the worker can easily remove the lid portion 57 by removing the bolts fastening the lid portion 57 to the upper casing 53 and gripping the gripping portions 57d, 57d. This improves the workability of the lid portion 57 removal operation.

[0071] -Other embodiments- The present invention is not limited to the above-described embodiments, and all modifications and applications within the scope of the claims and equivalents thereto are possible.

[0072] For example, in each of the above embodiments, the space surrounded by the silos 31, 32, 35, and 36 is the elevator installation space 41, and two elevators 5A and 5B are installed upright in this elevator installation space 41. However, the present invention is not limited to this, and the elevators 5A and 5B may be installed upright in a location other than the space surrounded by the silos 31 to 38. Furthermore, the number of elevators 5A and 5B is not limited to two, and may be one, or three or more.

[0073] In the above-described embodiments, only the opening 53b provided in the upper casing 53 is used as an opening for maintenance such as replacing the bucket belt. However, the present invention is not limited to this, and openings for maintenance may also be provided in other locations (for example, the lower casing 52). In this case, too, the openings are covered with lids when not performing maintenance work. [Industrial Applicability]

[0074] The present invention is applicable to an elevator of an elevator device installed in a grain drying facility. [Explanation of symbols]

[0075] 31~38, 42, 43 Silo (storage facility) 5A, 5B elevator 53b opening 57 Lid 6 Silo building (building) 61 Elevator building section 62 Top plate 7 Restraining member 8 Drainage gutter

Claims

1. 1. A lifting device for a grain drying facility equipped with an elevator for supplying grain to a storage shed for storing the grain, A lifting device for a grain drying facility, characterized in that an opening is provided above the elevator.

2. The lifting device for a grain drying facility according to claim 1, A lifting device for a grain drying facility, characterized in that at least a portion of the elevator, including an opening, penetrates the top plate of a building of the grain drying facility and protrudes outside the building.

3. The lifting device for a grain drying facility according to claim 2, A lifting device for a grain drying facility, characterized in that a lid portion is provided at an opening of the elevator to enable the opening to be opened and closed.

4. The lifting device for a grain drying facility according to claim 2 or 3, A lifting device for a grain drying facility, characterized in that a drainage gutter is provided around the outer periphery of an area located inside the top plate at the portion that penetrates the top plate of the building.

5. The lifting device for a grain drying facility according to claim 2 or 3, A lifting device for a grain drying facility, characterized in that a suppression member for suppressing rainwater from entering the building is provided around the portion of the building that protrudes outward.

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