Recovery device

Abstract

To provide a recovery device capable of efficiently recovering a recovery object on a movement path.SOLUTION: A recovery device 10 is a device for recovering a recovery object 6a on a travel path. The recovery device 10 comprises: a moving body 12 which has a travel device 20 and freely moves forth and back; a raking part 40 which is provided to protrude out more than the moving body 12 in a width direction of the moving body 12 and rakes the recovery object 6a in the width direction; and an arm part 42 which is provided to support the raking part 40 and also freely swing around a vertical axis 42a located inside the raking part 40 in the width direction.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a recovery device that recovers objects on a moving path. [Background technology]

[0002] 2. Description of the Related Art Belt conveyors have been used in various facilities in the past. For example, in port facilities, belt conveyors are used to transport raw materials (bulk materials) such as iron ore and coal.

[0003] By using a belt conveyor, it is possible to transport a large amount of raw materials. However, there is also a problem that some of the raw materials may fall off the belt conveyor. The raw materials that fall off the belt conveyor may accumulate below the belt conveyor and hinder the smooth operation of the belt conveyor. Therefore, devices have been developed to recover the raw materials that have fallen off the belt conveyor.

[0004] For example, the ore recovery device disclosed in Patent Document 1 includes a traveling and rotating device that travels along the belt conveyor, a bucket support rail connected to the traveling and rotating device, and a bucket that travels along the bucket support rail. When recovering ore using the ore recovery device of Patent Document 1, first, the traveling and rotating device is caused to travel to a predetermined position on the belt conveyor with the bucket support rail parallel to the belt conveyor. Next, the traveling and rotating device is caused to rotate so that the lower side of the bucket support rail (lower rail) passes under the belt conveyor. After that, the bucket is caused to travel along the support rail and the ore below the belt conveyor is recovered by the bucket. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 7-215444 Summary of the Invention [Problem to be solved by the invention]

[0006] In order to efficiently collect raw materials that have fallen from the belt conveyor, it is preferable to collect the raw materials while running the recovery device along the belt conveyor. However, in the ore recovery device of Patent Document 1, when the ore recovery device is made to run along the belt conveyor in a state in which raw materials can be collected (when the bucket support rail passes under the belt conveyor), the bucket support rail comes into contact with the support pillar of the belt conveyor. For this reason, in the ore recovery device of Patent Document 1, when passing next to the support pillar of the belt conveyor, it is necessary to rotate the traveling and rotating device so that the bucket support rail does not come into contact with the support pillar. In this case, the ore can be efficiently collected.

[0007] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a recovery device that can efficiently recover items on a movement path. [Means for solving the problem]

[0008] The present invention relates to the following recovery device.

[0009] (1) A device for collecting objects along a moving path, comprising: A moving body having a traveling device and movable in a forward and backward direction; a scraping portion provided so as to protrude outward from the movable body in a width direction of the movable body and scraping the collected material inward in the width direction; a support portion that supports the raking portion and is provided so as to be swingable about a vertical axis located inside the raking portion in the width direction; A recovery device comprising:

[0010] (2) The scraping section has a first rotor that is rotatable about a vertical axis, The recovery device according to (1) above, wherein the first rotating body rotates when the moving body moves to scrape in the recovered materials.

[0011] (3) A recovery device as described in (2) above, in which, when the side on which the scraping portion is located as viewed from the moving body in the fore-and-aft direction of the moving body is defined as the front, the axis of the first rotating body is inclined with respect to the vertical direction so that it is located further rearward as it goes downward.

[0012] (4) A recovery device as described in (2) or (3) above, wherein the first rotating body has a rotating blade and / or a linear body extending in the radial direction of the first rotating body when the first rotating body rotates.

[0013] (5) The scraping portion includes a protective member provided below the first rotating body, the protective member has a tapered portion that is inclined so as to be positioned upward toward the outside with respect to the axis of the first rotating body, The recovery device according to (2) or (3) above, wherein when viewed from the axial direction of the first rotating body, the outer peripheral edge of the protective member is located inside the rotational area of ​​the first rotating body.

[0014] (6) The recovery device described in (1) above, further comprising a biasing mechanism that biases the scooping portion back to its reference position when the scooping portion oscillates from a reference position that protrudes most in the width direction relative to the movable body.

[0015] (7) The recovery device according to (1) above, wherein the scraping portion is provided on one side and the other side of the movable body in the width direction.

[0016] (8) The recovery device described in (1) above, further comprising an inclined transport section that transports the recovered material scraped up by the scraping section diagonally upward toward the inside of the moving body.

[0017] (9) The recovery device according to (8) above, wherein the scraping section and the inclined transport section are supported on the moving body so that their vertical positions relative to the traveling device can be freely adjusted.

[0018] (10) The recovery device according to (9) above, wherein the scraping section and the inclined transport section are supported on the moving body so as to move up and down integrally.

[0019] (11) The recovery device according to (9) above, further comprising an adjustment device that adjusts the vertical positions of the take-in section and the inclined transport section by being operated by a remote control device.

[0020] (12) The recovery device described in (8) above, further comprising a horizontal transport section that transports the recovered material transported upward by the inclined transport section in a horizontal direction.

[0021] (13) The recovery device described in (12) above, wherein the horizontal conveying section is supported on the movable body so as to be freely rotatable about a vertical axis.

[0022] (14) The recovery device described in (12) above, wherein the horizontal transport section is supported on the moving body so that the inclination angle with respect to the horizontal plane can be freely adjusted.

[0023] (15) A second rotor is provided so as to be located between the pick-up section and the inclined conveying section in the front-rear direction of the moving body and to be rotatable about an axis extending in the width direction, The recovery device according to (8) above, wherein the second rotating body has a plurality of claws and rotates when the moving body moves to scrape up the recovered material toward the inclined transport section.

[0024] (16) A recovery device as described in (15) above, wherein when the second rotating body is positioned forward in the direction of travel of the moving body, the second rotating body rotates forward so that the front side moves downward in the direction of travel of the moving body.

[0025] (17) A recovery device as described in (16) above, in which when the second rotating body is located forward in the direction of travel of the moving body and the direction of movement of the multiple claw portions when the second rotating body rotates forward is defined as the forward direction, each of the multiple claw portions is bent so as to be convex toward the forward direction side when viewed from the axial direction of the second rotating body.

[0026] (18) The cleaning device further includes a plurality of fixed blades provided in front of the inclined conveying section when the side on which the pick-up section is located as viewed from the moving body in the front-rear direction of the moving body is defined as the front, The recovery device according to (8) above, wherein the multiple fixed blades are arranged so as to be aligned in the width direction and so that adjacent fixed blades in the width direction are positioned differently in the front-to-rear direction.

[0027] (19) The recovery device described in (1) above, comprising a detection unit that detects the distance to an object located outside the recovery device in the width direction, and a control unit that controls the traveling device so that the distance detected by the detection unit satisfies a predetermined condition. Effect of the Invention

[0028] According to the present invention, it is possible to efficiently collect items on the movement route. [Brief description of the drawings]

[0029] [Figure 1] FIG. 1 is a schematic side view showing a belt conveyor and a recovery device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic cross-sectional view showing a portion AA in FIG. [Diagram 3] FIG. 3 is a schematic side view showing the recovery device. [Figure 4] FIG. 4 is a schematic cross-sectional view showing a portion BB in FIG. [Diagram 5] FIG. 5 is a schematic diagram of the recovery section, the front part of the inclined transport section, and the front part of the support unit as viewed from above. [Figure 6] FIG. 6 is a schematic side view showing the recovery device. [Figure 7] FIG. 7 is a schematic diagram of the recovery section, the front part of the inclined transport section, and the front part of the support unit as viewed from above. [Figure 8] FIG. 8 is a diagram showing a modified example of the biasing mechanism. [Figure 9] FIG. 9 is a rear view of the recovery device. [Figure 10]FIG. 10 is a diagram for explaining how to use the recovery device. [Figure 11] FIG. 11 is a diagram for explaining how to use the recovery device. [Figure 12] FIG. 12 is a diagram for explaining how to use the recovery device. [Figure 13] FIG. 13 is a diagram for explaining how to use the recovery device. [Figure 14] FIG. 14 is a diagram for explaining how to use the recovery device. [Figure 15] FIG. 15 is a diagram for explaining how to use the recovery device. [Figure 16] FIG. 16 is a diagram for explaining a modified example of the rotor. [Figure 17] FIG. 17 is a diagram for explaining a modified example of the rotor. [Figure 18] FIG. 18 is a diagram for explaining another modified example of the rotating body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A recovery device according to an embodiment of the present invention will now be described with reference to the drawings.

[0031] Fig. 1 is a schematic side view showing a belt conveyor and a recovery device according to an embodiment of the present invention, and Fig. 2 is a schematic cross-sectional view showing a portion AA in Fig. 1.

[0032] First, a brief description of the belt conveyor will be given. Note that the configuration of the belt conveyor described below is merely an example, and the belt conveyor that recovers the raw materials (ores) that have fallen to the ground using the recovery device according to the present invention is not limited to the belt conveyor described below.

[0033] As shown in Figures 1 and 2, the belt conveyor 1 comprises an endless conveying belt 2, a plurality of roller units 3 supporting the carrier portion 2a of the conveying belt 2, a plurality of return rollers 4 supporting the return portion 2b of the conveying belt 2, and a conveyor frame 5 for supporting the plurality of roller units 3 and the plurality of return rollers 4 on the ground G.

[0034] Although not shown in the figure, the conveyor belt 2 is wound around a pair of pulleys. When one of the pair of pulleys is rotated, the conveyor belt 2 rotates, and raw materials 6 such as iron ore or coal placed on the carrier portion 2a are conveyed.

[0035] 2, the roller unit 3 includes a central roller 3a that supports the center of the carrier portion 2a of the conveyor belt 2, and a pair of inclined rollers 3b that are disposed to sandwich the central roller 3a. With this configuration, the roller unit 3 supports the carrier portion 2a by curving it into a trough shape.

[0036] As shown in FIG. 1 and FIG. 2, the conveyor frame 5 has a plurality of support columns 5a supported on the ground G and a pair of support members 5b supported by the plurality of support columns 5a. As shown in FIG. 1, in this embodiment, the plurality of support columns 5a are provided at intervals in the extension direction of the conveyor belt 2 (the direction indicated by the arrow X in FIG. 1). Also, as shown in FIG. 2, the plurality of support columns 5a are provided on both sides in the width direction of the conveyor belt 2. As shown in FIG. 1 and FIG. 2, the pair of support members 5b are each provided so as to extend in the extension direction X. Each support member 5b is supported by the plurality of support columns 5a. Each roller unit 3 and each return roller 4 are supported by a pair of support members 5b. The conveyor belt 2 is supported above the ground G by the conveyor frame 5, the plurality of roller units 3, and the plurality of return rollers 4. In the following, the extension direction of the belt conveyor 1 is also simply referred to as the extension direction X.

[0037] As shown in FIG. 2, when the raw material 6 falls from the conveyor belt 2, the raw material 6 may pile up on the ground G on both sides of the belt conveyor 1.

[0038] As shown in Fig. 1, the recovery device 10 according to this embodiment is disposed on the side of the belt conveyor 1. The recovery device 10 travels along the belt conveyor 1 and recovers raw materials 6 deposited on the ground G as recovered materials. Hereinafter, the raw materials 6 deposited on the ground G will be referred to as recovered materials 6a. The recovery device 10 will be specifically described below.

[0039] Fig. 3 is a schematic side view showing the recovery device 10, and Fig. 4 is a schematic cross-sectional view showing the BB portion of Fig. 1. As shown in Fig. 3, the recovery device 10 includes a moving body 12, a recovery section 14, an inclined conveying section 16, and a horizontal conveying section 18. The moving body 12 is configured to be movable in the front-rear direction along the belt conveyor 1 (see Fig. 1). In Fig. 3, the moving direction of the moving body 12 is indicated by an arrow X1.

[0040] 3 and 4, the moving body 12 includes a traveling device 20 and a main body 22 supported by the traveling device 20. In this embodiment, a crawler type traveling device is used as the traveling device 20. As shown in Fig. 4, in this embodiment, the traveling device 20 has a pair of crawlers 20a.

[0041] As shown in Fig. 3, the main body 22 accommodates a drive source 22a for driving the traveling device 20 (the pair of crawlers 20a) and a control unit 22b for controlling each part of the recovery device 10. The drive source 22a is, for example, an engine. The control unit 22b is configured to be able to communicate with the remote control device 100. A pair of auxiliary casters 23 are detachably provided on the main body 22. The auxiliary casters 23 will be described later.

[0042] The collection unit 14 is provided on one side of the moving body 12 in the moving direction X1 of the moving body 12. In the following, when viewed from the moving body 12 along the moving direction X1, the side of the collection unit 14 is referred to as the front, and the opposite side is referred to as the rear. In the following, the direction perpendicular to the moving direction X1 when viewed from above is referred to as the width direction Y1 of the moving body 12. Based on the front-rear direction defined above, one side in the width direction Y1 is referred to as the left side, and the other side is referred to as the right side.

[0043] The recovery section 14 and the inclined transport section 16 are supported by the main body section 22 via a support unit 24. Figure 5 is a schematic diagram of the recovery section 14, the front portion of the inclined transport section 16, and the front portion of the support unit 24 as viewed from above.

[0044] 3 and 5, the support unit 24 has a pair of side plates 24a, a pair of side plates 24b, a discharge portion 24c, a bottom plate portion 24d, and a frame portion 24e. The respective portions of the support unit 24 are fixed to each other.

[0045] The pair of side plates 24a are provided in front of the movable body 12. The pair of side plates 24b are provided so as to extend obliquely upward and rearward from the rear ends of the pair of side plates 24a. The discharge portion 24c is attached to the upper ends of the pair of side plates 24b. The discharge portion 24c has a cylindrical shape and is provided so as to connect the space inside the pair of side plates 24b and the space above the horizontal conveying portion 18. Below the discharge portion 24c, a bottom plate portion 24d is provided so as to connect the rear edges of the pair of side plates 24b to each other.

[0046] The frame portion 24e has a plurality of frame members 26a to 26f. In this embodiment, a rod-shaped frame member 26a is fixed to each side plate 24a so as to protrude forward from each side plate 24a. As shown in FIG. 5, a rod-shaped frame member 26b is provided so as to connect the front ends of the pair of frame members 26a to each other. A pair of rod-shaped frame members 26c is fixed to the frame member 26b so as to extend forward from the frame member 26b. A rod-shaped frame member 26d is fixed to the front ends of the pair of frame members 26c so as to extend in the width direction Y1.

[0047] 3 and 5, plate-shaped frame members 26e are fixed to both ends of frame member 26b so as to extend downward from frame member 26b. A plate-shaped frame member 26f is supported on the lower ends of the pair of frame members 26e.

[0048] As shown in Fig. 3, the support unit 24 is supported by the main body 22 of the movable body 12 via the arm portion 28a and the arm portion 28b. Note that, although the arm portion 28a and the arm portion 28b located on one side of the support unit 24 in the width direction Y1 are shown in Fig. 3, the arm portion 28a and the arm portion 28b are similarly provided on the other side of the support unit 24 in the width direction Y1. That is, in this embodiment, the support unit 24 is supported by the main body 22 via a pair of arm portions 28a and a pair of arm portions 28b.

[0049] In this embodiment, one end of the arm portion 28a and one end of the arm portion 28b are supported by the side plate 24a so as to be rotatable around an axis extending in the width direction Y1. The other end of the arm portion 28a and the other end of the arm portion 28b are supported by the main body portion 22 so as to be rotatable around an axis extending in the width direction Y1. The other end (the end on the main body portion 22 side) of the arm portion 28a on one side in the width direction Y1 is provided with an adjustment device 30 for swinging the arm portion 28a around an axis extending in the width direction Y1 relative to the main body portion 22. In this embodiment, for example, a hydraulic tilt cylinder is used as the adjustment device 30. The tilt cylinder swings the arm portion 28a relative to the main body portion 22 by hydraulic pressure generated by the drive source 22a, for example. As a result, the vertical position of the support unit 24 is adjusted as shown in FIG. 6. The adjustment device 30 is controlled by the control unit 22b. In this embodiment, for example, an operator operates an operation unit (not shown) provided on the main body unit 22, whereby the control unit 22b controls the adjustment device 30. Also, for example, an operator operates the remote operation device 100, whereby the control unit 22b controls the adjustment device 30.

[0050] 5, in this embodiment, the collection unit 14 has a pair of scraping units 40, a pair of arm units 42, a plurality of fixed blades 44, and a rotor 46. The operation of each unit of the collection unit 14 will be described later.

[0051] As shown in FIG. 3 and FIG. 5, the scraping section 40 has a rotor 50 rotatably provided around a vertical axis, a protective member 52 provided above the rotor 50, and a protective member 54 provided below the rotor 50. In this embodiment, the rotor 50 has a columnar shaft portion 50a extending in the vertical direction and a plurality of rotary blades 50b fixed to the shaft portion 50a. The rotary blades 50b are made of steel. As shown in FIG. 3, in this embodiment, the shaft portion 50a (rotation axis) of the rotor 50 is inclined with respect to the vertical direction so that the upper side is located forward relative to the lower side when viewed from the width direction Y1. Note that the shape of the rotary blade 50b shown in FIG. 3 and the like is merely an example, and the shape of the rotary blade 50b is not limited to the shape shown in FIG. 3 and the like. For example, a known plate-shaped rotary blade used to crush sediments and the like can be used as the rotary blade 50b.

[0052] Each of the sweeping sections 40 is provided with a driving device 56 that rotationally drives the shaft section 50a of the rotating body 50. In FIG. 5, the driving device 56 is omitted from illustration in order to simplify the drawing. In this embodiment, for example, a hydraulic motor is used as the driving device 56. The hydraulic motor is connected, for example, to the main body section 22 of the moving body 12, and drives the shaft section 50a of the rotating body 50 to rotation by hydraulic pressure generated by the driving source 22a.

[0053] In this embodiment, the rotating body 50 rotates when the moving body 12 moves in the front-rear direction. As a result, the collected material 6a is scraped inward in the width direction Y1 by the multiple rotary blades 50b. The rotating body 50 of one scraping section 40 and the rotating body 50 of the other scraping section 40 rotate in opposite directions. In this embodiment, when viewed from above, the rotating body 50 of the scraping section 40 on the left side rotates clockwise, and the rotating body 50 of the scraping section 40 on the right side rotates counterclockwise. In this embodiment, the rotating body 50 corresponds to the first rotating body.

[0054] The protective member 52 is provided so as to cover the upper part of the multiple rotary blades 50b. In this embodiment, the protective member 52 is provided so that the outer edge of the protective member 52 is located outside the rotation area of ​​the rotary body 50 (rotary blades 50b) when viewed from the axial direction of the rotary body 50.

[0055] As shown in FIG. 3, the protective member 54 is provided below the multiple rotary blades 50b. In this embodiment, the protective member 54 is provided rotatably relative to the rotor 50. The protective member 54 has a tapered portion 54a having an outer circumferential edge with a circular cross section. The tapered portion 54a is inclined so that the outer circumferential edge is located higher relative to the axis of the rotor 50. In this embodiment, the protective member 54 is provided so that the outer circumferential edge of the protective member 54 is located inside the rotation region of the rotor 50 (rotary blades 50b) when viewed from the axial direction of the rotor 50. In this embodiment, the protective member 54 corresponds to the protective member of the present invention.

[0056] As shown in Fig. 5, the sweeping portion 40 is supported at one end of the arm portion 42. The other end of the arm portion 42 is supported by the frame material 26d so as to be swingable around the vertical axis 42a. This allows the sweeping portion 40 to swing around the other end (vertical axis 42a) of the arm portion 42 as shown by the dashed line in Fig. 7. As a result, the sweeping portion 40 can move inward in the width direction Y1 from a reference position (position shown by a solid line in Fig. 7) at which the sweeping portion 40 protrudes most in the width direction Y1 relative to the movable body 12 (see Fig. 3). In this embodiment, the arm portion 42 corresponds to the support portion.

[0057] As shown in FIG. 5, in this embodiment, a biasing mechanism 58 is provided for each arm portion 42. The biasing mechanism 58 has a pair of tubular members 58a fixed to the frame material 26d and a coil spring (not shown) provided in each tubular member 58a. The coil spring is housed in the tubular member 58a so as to be compressed or pulled in conjunction with the swinging of the arm portion 42. In this embodiment, when the raking portion 40 swings from the reference position, a force is applied to the arm portion 42 from the pair of coil springs of the biasing mechanism 58 so that the raking portion 40 returns to the reference position. That is, in this embodiment, when the raking portion 40 swings from the reference position, the biasing mechanism 58 biases the raking portion 40 to return to the reference position. Note that the biasing mechanism 58 is not limited to the above-mentioned configuration, and may be configured more simply. For example, as shown in FIG. 8, a coil spring or a wire provided in the frame material 26d may be used as the biasing mechanism 58. In this case as well, the sweeping portion 40 can be biased back to the reference position by the repulsive force generated in the coil spring or wire.

[0058] 3 and 5, the multiple fixed blades 44 are fixed to the frame material 26f so as to protrude downward from the frame material 26f. In this embodiment, the multiple fixed blades 44 are arranged side by side in the width direction Y1, and the positions of adjacent fixed blades 44 in the width direction Y1 in the front-rear direction (movement direction X1) are different.

[0059] A rotating body 46 is provided behind the fixed blades 44. The rotating body 46 has a plurality of claws 46a. The rotating body 46 is supported by a pair of side plates 24a so as to be rotatable around an axis extending in the width direction Y1. In FIG. 5, the rotational area of ​​each claw 46a is indicated by a dashed line in order to simplify the drawing. As shown in FIG. 5, the claws 46a are arranged to be aligned in the width direction Y1. In this embodiment, the claws 46a are arranged in six rows. In this embodiment, a plurality of (for example, two) claws 46a are arranged in each row. In this embodiment, the claws 46a are arranged such that the positions in the rotational direction of adjacent claws 46a in the width direction Y1 are different.

[0060] In this embodiment, the rotating body 46 is rotationally driven by power transmitted from the driving source 22a via a transmission mechanism 70. In order to simplify the drawing, the transmission mechanism 70 is omitted from FIG. 3. As shown in FIG. 5, in this embodiment, the transmission mechanism 70 includes a drive shaft 70a and a gear box 70b. In this embodiment, the drive shaft 70a is connected to the driving source 22a (FIG. 3) and rotates by power generated by the driving source 22a. The gear box 70b is fixed to the side plate 24a. The gear box 70b transmits the rotation of the drive shaft 70a to the rotating body 46. This causes the rotating body 46 to rotate.

[0061] In this embodiment, the rotating body 46 is rotated by the power generated by the driving source 22a when the moving body 12 is moved. In this embodiment, when the moving body 12 moves forward, the rotating body 46 is rotated forward so that the front side moves downward by the power transmitted from the driving source 22a to the rotating body 46. Also, as shown in FIG. 3, in this embodiment, when the moving direction of the claws 46a when the rotating body 46 rotates forward as described above is defined as the forward direction, each of the claws 46a is bent so as to be convex toward the forward direction side when viewed from the axial direction (width direction Y1) of the rotating body 46. In this embodiment, the rotating body 46 corresponds to the second rotating body.

[0062] Although a detailed description is omitted, a protective cover may be attached to cover the upper part of the rotating body 46.

[0063] As shown in Fig. 3 and Fig. 5, plate-shaped scrapers 72 are provided on both sides of the rotor 46 in the width direction Y1. In this embodiment, each scraper 72 is attached to a lower part of the front end of the side plate 24a. As shown in Fig. 5, in this embodiment, the pair of scrapers 72 are provided so as to be inclined with respect to the front-rear direction so that the distance between them in the width direction Y1 becomes larger toward the front. In this embodiment, the pair of scrapers 72 are provided so as to extend forward beyond the axis of the rotor 46.

[0064] As shown in Figures 3 and 5, a guide roller 74 is fixed to each of the front ends of the pair of frame members 26a. A distance sensor 76 is provided on each guide roller 74. The distance sensor 76 measures the distance to an object located outside the recovery device 10 in the width direction Y1. Various photoelectric sensors can be used as the distance sensor 76. In this embodiment, the distance sensor 76 corresponds to the detection unit.

[0065] The control unit 22b controls the traveling device 20 so that the distance detected by the distance sensor 76 satisfies a predetermined condition. In this embodiment, the control unit 22b adjusts the rotation speed of the pair of crawlers 20a to adjust the traveling direction of the recovery device 10. In this embodiment, for example, the installation position of the distance sensor 76 is adjusted so that the distance between the distance sensor 76 and the support member 5b (see FIG. 2) can be detected, and the traveling device 20 is controlled so that the distance between the distance sensor 76 and the support member 5b becomes a preset distance. This allows the recovery device 10 to move while maintaining the distance between the recovery device 10 and the belt conveyor 1 at a desired distance.

[0066] A caster unit 78 is attached to the rear end of each frame member 26a. In this embodiment, each caster unit 78 has a pair of casters. In this embodiment, the caster unit 78 is provided so as to protrude downward from the support unit 24. The caster unit 78 is attached to the frame member 26a so that the position in the vertical direction can be adjusted. By adjusting the vertical position of the caster unit 78 relative to the frame member 26a, the positions of the collection section 14, the inclined transport section 16, and the support unit 24 relative to the ground G (collected material 6a) can be adjusted. In other words, the caster unit 78 functions as a height adjustment mechanism for the collection section 14, the inclined transport section 16, and the support unit 24.

[0067] As shown in Fig. 3 and Fig. 5, the inclined conveying section 16 has a pair of pulleys 60a, 60b, an endless belt 62 wound around the pulleys 60a, 60b, and a driving device 64 (Fig. 3) that rotates and drives the pulley 60b. In this embodiment, the pulley 60a is rotatably supported by a pair of side plates 24a behind the rotor 46. The pulley 60b is rotatably supported by a pair of side plates 24b behind and obliquely above the pulley 60a. In this embodiment, a plurality of plate materials 66 are fixed to the surface of the belt 62. The plurality of plate materials 66 are provided at intervals from each other in the length direction (circumferential direction) of the belt 62.

[0068] In this embodiment, for example, a hydraulic motor is used as the driving device 64. The hydraulic motor is connected to, for example, the main body 22 of the movable body 12, and drives the pulley 60b to rotate by hydraulic pressure generated by the driving source 22a. This causes the belt 62 to rotate.

[0069] 3 and 4, the horizontal conveying section 18 includes a case 80, a receiving section 82, a pair of pulleys 84a, 84b, an endless belt 86, and a pair of support members 88. The case 80 has a substantially rectangular parallelepiped shape. The receiving section 82 has a cylindrical shape, and is attached to one end of the case 80 in the longitudinal direction so as to be located below the discharge section 24c.

[0070] The pair of pulleys 84a, 84b are supported by the case 80 so as to be rotatable about a horizontal axis. The belt 86 is wound around the pulleys 84a, 84b so as to pass below the receiving portion 82. In this embodiment, the pulley 84a is rotationally driven by a driving device (not shown). This causes the belt 86 to rotate. As with the driving device 64, for example, a hydraulic motor can be used as the driving device. The pair of support members 88 are provided so as to protrude downward from one end of the case 80 in the longitudinal direction.

[0071] The horizontal conveying section 18 is supported by the main body section 22 of the movable body 12 via a support mechanism 90. The support mechanism 90 includes a base section 92, a rotation support section 94, an adjustment handle 96, and a plurality of adjustment receiving sections 98. The base section 92 is supported by the main body section 22. In this embodiment, the base section 92 has a rectangular shape when viewed from above. A pair of adjustment receiving sections 98 is provided on each of the left side surface, right side surface, and rear surface of the base section 92.

[0072] The rotation support part 94 is supported by the base part 92 so as to be rotatable about the vertical axis. The adjustment handle 96 is attached to the case 80 of the horizontal conveyance part 18 so as to be rotatable about the horizontal axis. Each adjustment receiver 98 is formed with a plurality of recesses 98a (three in this embodiment) of different depths. The lower part of the adjustment handle 96 is fitted into the recesses 98a. Although detailed illustration is omitted, in this embodiment, the lower part of the adjustment handle 96 is provided with a rod-shaped part formed to extend in the horizontal direction, and the rod-shaped part is fitted into each of the recesses 98a of the pair of adjustment receivers 98.

[0073] 4 and 9, in this embodiment, the pair of support members 88 of the horizontal conveying unit 18 are supported by a rotation support part 94 so as to be rotatable about a horizontal axis. This makes it possible to adjust the inclination angle of the horizontal conveying unit 18 with respect to the horizontal plane. In addition, by rotating the rotation support part 94 about the vertical axis with respect to the base part 92, the orientation of the horizontal conveying unit 18 can be adjusted.

[0074] In this embodiment, the inclination angle of the horizontal conveying unit 18 with respect to the horizontal plane is fixed by fitting the lower part of the adjustment handle 96 into the recess 98a. Also, the inclination angle of the horizontal conveying unit 18 with respect to the horizontal plane can be changed by changing the recess 98a into which the lower part of the adjustment handle 96 fits. Also, in this embodiment, rotation of the horizontal conveying unit 18 around the vertical axis can be prevented by fitting the lower part of the adjustment handle 96 into the recess 98a.

[0075] In this embodiment, a biasing device 99 is provided to connect the case 80 of the horizontal conveying unit 18 and the rotation support unit 94 of the support mechanism 90. For example, a gas spring is used as the biasing device 99. In this embodiment, the upper end of the biasing device 99 is attached to the case 80 so as to be rotatable about the horizontal axis, and the lower end of the biasing device 99 is attached to the rotation support unit 94 so as to be rotatable about the horizontal axis. The biasing device 99 biases the horizontal conveying unit 18 upward. This makes it possible to easily lift the horizontal conveying unit 18 when adjusting the inclination angle of the horizontal conveying unit 18.

[0076] (How to use the recovery device) Next, a method of using the recovery device 10 will be described. Figures 10 to 12 are diagrams for explaining the method of using the recovery device 10. Note that in Figures 10 to 12, the belt conveyor 1 is shown in a simplified manner, and part of the recovery device 10 is not shown.

[0077] In this embodiment, the moving body 12 is self-propelled by the traveling device 20, while the collection unit 14 collects the collected objects 6a on the ground G. For example, as shown in FIG. 4 and FIG. 10, a case will be described in which the belt conveyor 1 is positioned on the right side of the collection device 10 to collect the collected objects 6a. In this case, first, the auxiliary caster 23 is attached to the left side of the main body 22. This makes it possible to prevent the collection device 10 from tipping over to the left. The belt conveyor 1 can prevent the collection device 10 from tipping over to the right. The rotation support unit 94 is rotated relative to the base unit 92 to adjust the orientation of the horizontal conveyor 18 so that the tip of the horizontal conveyor 18 is located above the belt conveyor 1. In this embodiment, the collection device 10 is disposed so that the right-side scraping unit 40 is positioned between the adjacent supports 5a in the extension direction X (see FIG. 1).

[0078] 3 and 4, the recovery device 10 is advanced along the belt conveyor 1 (see FIG. 1) while driving the pair of sweeping units 40 (rotating bodies 50), the rotating body 46, the inclined conveying unit 16 (belt 62), and the horizontal conveying unit 18 (belt 86). In this case, the collected material 6a in front of the moving body 12 is sweeped inward in the width direction Y1 by the multiple rotating blades 50b of the pair of sweeping units 40. The collected material 6a in front of the moving body 12 can also be loosened by the multiple fixed blades 44.

[0079] As shown in FIG. 3, the collected material 6a scraped in by the pair of scraping parts 40 and the collected material 6a loosened by the plurality of fixed blades 44 are scraped up toward the rear by the plurality of claw parts 46a of the rotating body 46. The collected material 6a scraped up toward the rear by the claw parts 46a is lifted by the plate material 66 of the inclined conveying section 16. In this embodiment, the inclined conveying section 16 conveys the collected material 6a obliquely upward toward the inside of the moving body 12 in the front-rear direction. Note that in this embodiment, the collected material 6a in front of the rotating body 46 can be efficiently collected by the pair of scrapers 72. As a result, the collected material 6a scraped in by the pair of scraping parts 40 can be efficiently sent to the inclined conveying section 16.

[0080] As shown in FIG. 3 and FIG. 4, the collected material 6a conveyed obliquely upward by the inclined conveying section 16 is supplied to the horizontal conveying section 18 via the discharge section 24c. In this embodiment, the collected material 6a discharged from the discharge section 24c is placed on the belt 86 of the horizontal conveying section 18 through the receiving section 82. The collected material 6a placed on the belt 86 is conveyed horizontally and returned from the tip of the case 80 to the carrier portion 2a of the belt conveyor 1. In this specification, the inclined conveying section conveys the collected material in the horizontal direction means that the conveying direction of the collected material is closer to the horizontal direction than the vertical direction. Therefore, the horizontal conveying section conveys the collected material in the horizontal direction is not limited to the case where the collected material is conveyed in a direction parallel to the horizontal direction, but also includes the case where the collected material is conveyed in a direction inclined with respect to the horizontal direction.

[0081] 7, in this embodiment, the arm portion 42 supporting the sweeping portion 40 is provided to be able to swing about a vertical axis 42a located inside the sweeping portion 40 in the width direction Y1. Therefore, as shown in FIG 11, when the sweeping portion 40 comes into contact with the support pillar 5a while the moving body 12 is moving forward, the sweeping portion 40 moves inward in the width direction Y1 to avoid the support pillar 5a.

[0082] 12, when the movable body 12 advances further and the sweeping part 40 passes the support pillar 5a, the sweeping part 40 is returned to the reference position by the biasing mechanism 58. In this manner, in this embodiment, when the sweeping part 40 is disposed between the support pillars 5a adjacent to each other in the extension direction X to collect the collected material 6a, the movable body 12 can be advanced while the sweeping part 40 avoids the support pillars 5a.

[0083] 13, when the belt conveyor 1 is positioned on the left side of the recovery device 10 to recover the collected objects 6a, the auxiliary caster 23 can be attached to the right side of the main body 22. This can prevent the recovery device 10 from tipping over to the right. Also, the rotation support part 94 can be rotated with respect to the base part 92 so that the tip of the horizontal transport part 18 is positioned on the left side of the moving body 12.

[0084] 4 and 13 show the case where the collected objects 6a collected by the collection device 10 are returned to the belt conveyor 1, but the collected objects 6a do not have to be returned to the belt conveyor 1. For example, the collected objects 6a collected by the collection device 10 may be loaded onto the bed of a collection vehicle from the horizontal conveyor 18. In this case, for example, as shown in FIG. 14, the position of the horizontal conveyor 18 may be adjusted so that the horizontal conveyor 18 protrudes rearward from the moving body 12, and the collected objects 6a may be loaded from the horizontal conveyor 18 onto the bed of a collection vehicle arranged behind the moving body 12.

[0085] In the above, the collected objects 6a are collected while the moving body 12 is moved forward. However, the collected objects 6a may be collected while the moving body 12 is moved backward. In this case, the moving body 12 can be moved backward while the raking section 40 avoids the support pillar 5a, as shown in FIG. 15. When the collected objects 6a are collected while the moving body 12 is moved backward, the raking section 40 and the rotating body 46 do not need to be driven. Even in this case, the collected objects 6a on the ground surface G can be collected by the multiple plate members 66 of the inclined transport section 16.

[0086] (Effects of this embodiment) In the recovery device 10 according to this embodiment, as described above, the sweeping section 40 is provided so as to protrude outward from the moving body 12 in the width direction Y1. Therefore, when the recovery device 10 is moved along the belt conveyor 1 to recover the recovered materials 6a, the sweeping section 40 can be disposed in the space below the belt conveyor 1. This makes it possible to recover not only the recovered materials 6a on the movement path of the moving body 12, but also the recovered materials 6a below the belt conveyor 1.

[0087] In addition, in the recovery device 10 according to this embodiment, the arm portion 42 supporting the raking portion 40 is supported by the support unit 24 so as to be able to swing about the vertical axis 42a located inside the raking portion 40 in the width direction Y1, and the support unit 24 is supported by the moving body 12. That is, the raking portion 40 is supported by the moving body 12 so as to be able to swing about the vertical axis 42a. As a result, when the recovery device 10 is moved to recover the recovered material 6a, even if the raking portion 40 comes into contact with an obstacle (e.g., a support 5a) located outside the moving body 12 in the width direction Y1, the raking portion 40 can be moved inward in the width direction Y1 so that the raking portion 40 can avoid the obstacle. In this case, it is not necessary to move the recovery device 10 in the width direction Y1 to avoid the obstacle. Therefore, the recovered material 6a can be recovered efficiently.

[0088] In this embodiment, the rotor 50 of the scraping section 40 scrapes the collected material 6a inward in the width direction Y1 by rotating around the vertical axis when the moving body 12 moves. In this case, when the moving body 12 advances, the rotor 50 can remove or reduce the size of the protruding portion (obstacle) formed in front of the moving body 12 by the collected material 6a. This allows the moving body 12 to run smoothly. In particular, in this embodiment, the axis of the rotor 50 is inclined with respect to the vertical direction so that the lower side is located further rearward. In this case, the protruding portion can be removed or reduced by the rotary blade 50b of the rotor 50 at a more forward side of the collection device 10. As a result, the collection device 10 can run more smoothly.

[0089] When the rotary blade 50b of the rotor 50 rakes in the collected material 6a, the rotary blade 50b is pulled toward the ground G by the reaction force from the collected material 6a so as to bite into the ground G. However, in this embodiment, the protective member 54 provided below the rotor 50 contacts the ground G (or the collected material 6a on the ground G), thereby supporting the rotor 50 from below. This makes it possible to prevent the rotary blade 50b from biting into the ground G. Particularly, in this embodiment, the protective member 54 has a tapered portion 54a. In this case, during operation of the collection device 10, the protective member 54 prevents the rotary blade 50b of the rotor 50 from biting into the ground G, while the rake-in portion 40 can be moved smoothly. In this embodiment, as described above, the axis of the rotor 50 is inclined with respect to the vertical direction so as to be located further rearward toward the lower side. As a result, when the collection device 10 moves forward, the collected materials 6a can be raked inward in the width direction Y1 by the rotary blade 50b in front of the protective member 54. As a result, the collected materials 6a can be prevented from getting caught on the protective member 54, and the collection device 10 can be moved forward more smoothly.

[0090] In this embodiment, the recovery section 14 (scraping section 40) and the inclined transport section 16 are supported by the moving body 12 so that their vertical positions relative to the traveling device 20 can be adjusted freely. In this embodiment, the recovery section 14 and the inclined transport section 16 can be moved up and down integrally by driving the arm section 28a with the adjustment device 30. In this case, the heights of the recovery section 14 and the inclined transport section 16 can be appropriately adjusted depending on the amount (height) of the recovered material 6a, etc. As a result, the recovered material 6a can be efficiently recovered.

[0091] In this embodiment, the collection unit 14 and the inclined transport unit 16 can be moved up and down by operating the remote control device 100. In this case, the positions of the collection unit 14 and the inclined transport unit 16 can be adjusted while checking the state of the collected materials 6a away from the collection device 10. This allows the positions of the collection unit 14 and the inclined transport unit 16 to be adjusted more appropriately.

[0092] In this embodiment, the horizontal conveying unit 18 is supported by the moving body 12 so as to be rotatable about the vertical axis. This allows the orientation of the horizontal conveying unit 18 to be appropriately adjusted depending on the positional relationship between the recovery device 10 and the belt conveyor 1, or the positional relationship between the recovery device 10 and the recovery vehicle, etc.

[0093] In this embodiment, the horizontal conveyor 18 is supported by the moving body 12 so that the inclination angle of the horizontal conveyor 18 with respect to the horizontal plane can be adjusted freely. This allows the inclination angle of the horizontal conveyor 18 to be appropriately adjusted according to the height of the belt conveyor 1, the height of the collection vehicle, etc.

[0094] In addition, in this embodiment, the collected materials 6a can be scraped up toward the inclined conveying section 16 side not only by the scraping section 40 but also by the multiple claws 46a of the rotating body 46. This allows the collected materials 6a to be scraped up more efficiently. In particular, in this embodiment, when the moving body 12 advances, the rotating body 46 rotates forward so that the front side moves downward by the power transmitted from the driving source 22a to the rotating body 46. This allows the collected materials 6a on the ground G to be scraped up toward the inclined conveying section 16 side efficiently. In addition, when the moving direction of the claws 46a when the rotating body 46 rotates forward is the forward direction, each claw 46a is bent so as to be convex toward the forward direction side. This allows the collected materials 6a to be scraped up toward the inclined conveying section 16 side efficiently.

[0095] In this embodiment, the multiple fixed blades 44 are arranged in the width direction Y1, and adjacent fixed blades 44 in the width direction Y1 are positioned at different positions in the front-rear direction (movement direction X1). In this case, the collected material 6a can be efficiently loosened by the multiple fixed blades 44. As a result, the collected material 6a can be easily collected.

[0096] (Modification) In the above embodiment, the case where the collected material 6a collected by the collection device 10 is discharged from the collection device 10 to another device (such as the belt conveyor 1 or a collection vehicle) has been described, but the collected material 6a may be held in the collection device. In this case, for example, a device for holding the collected material 6a transported by the inclined transport section 16 is provided in the collection device. In this case, the horizontal transport section 18 may not be provided. Also, a device for directly taking in and holding the collected material 6a scraped in by the scraping section 40 may be provided in the collection device. In this case, the inclined transport section 16 and the horizontal transport section 18 may not be provided.

[0097] In the above embodiment, the recovery device 10 recovers the raw material 6 deposited on the ground G as the recovered material 6a. However, the recovery device 10 can be used to recover various recovered materials on the moving path of the recovery device 10. That is, the recovery device 10 can be used to recover recovered materials present on a surface on which the recovery device 10 can move, regardless of whether the surface is level or not. For example, the recovery device 10 may recover recovered materials on a floor surface instead of on the ground. Also, for example, the recovery device 10 may recover objects scattered in an open space as recovered materials, instead of objects that have fallen from the belt conveyor 1. In this case, the recovered materials recovered by the recovery device 10 are loaded onto a loading platform of a truck or the like.

[0098] In the above embodiment, the rotor 50 of the scraping unit 40 has a plurality of rotary blades 50b, but the configuration of the rotor is not limited to the above example. The rotor 50 may have a linear body extending in the radial direction of the rotor 50 instead of the rotary blades 50b. As the linear body, for example, an elastic body having a rigidity sufficient to maintain its shape can be used. Specifically, as in the recovery device 10 shown in FIG. 16, the rotor 50 may have a plurality of wire ropes 50c instead of the plurality of rotary blades 50b (see FIG. 3).

[0099] 17 is a diagram for explaining a method of attaching the wire rope 50c to the shaft portion 50a, where (a) shows the wire rope 50c and (b) shows two wire ropes 50c fixed to the shaft portion 50a. Note that the method of attaching the wire rope 50c described below is merely one example, and there is no particular limitation on the method of attaching the wire rope 50c to the shaft portion 50a as long as the shaft portion 50a and the wire rope 50c rotate integrally.

[0100] The wire rope 50c has a structure in which a plurality of wires are twisted together. In this embodiment, as shown in FIG. 17(a), both ends of the wire rope 50c are folded back. Cylindrical weights 50d are attached to both folded ends of the wire rope 50c. As shown in FIG. 17(b), a pair of wire ropes 50c are fixed to the shaft portion 50a via a cylindrical connecting member 51. The connecting member 51 has a cylindrical portion 51a and a pair of flange portions 51b provided at both ends of the cylindrical portion 51a. The connecting member 51 is attached to the shaft portion 50a so that the shaft portion 50a passes inside the connecting member 51. In this embodiment, the cylindrical portion 51a is fixed to the shaft portion 50a so that the connecting member 51 and the shaft portion 50a rotate integrally.

[0101] The pair of wire ropes 50c are attached to the connecting member 51 at positions spaced apart from each other in the up-down direction. In this embodiment, each wire rope 50c is attached to a flange portion 51b of the connecting member 51 by a pair of mounting portions 53. Although detailed description will be omitted, each mounting portion 53 is composed of a plurality of bolts, a plurality of nuts, plate materials, etc. The wire rope 50c is supported by the connecting member 51 and the pair of mounting portions 53 so that the wire rope 50c is prevented from rotating relative to the connecting member 51 when the connecting member 51 rotates.

[0102] In this embodiment, the portion of the wire rope 50c outside the pair of mounting portions 53 extends linearly radially outward from the cylindrical portion 51a, and the portion between the pair of mounting portions 53 is attached to the connecting member 51 so as to be curved in an arc along the outer circumferential surface of the cylindrical portion 51a. In Fig. 17(b), the upper wire rope 50c is provided so as to pass through the cylindrical portion 51a on the back side of the page, and the lower wire rope 50c is provided so as to pass through the cylindrical portion 51a on the front side of the page.

[0103] In this embodiment, as in the above embodiment, when the moving body 12 moves in the forward and backward directions, the shaft portion 50a rotates, and the collected materials can be raked in by the multiple wire ropes 50c. In particular, the wire ropes 50c are provided with weights 50d at their tips (both ends in this embodiment), and centrifugal force can be applied to the weights 50d, so that the collected materials can be efficiently raked in by the weights 50d. In addition, in this embodiment, a pair of wire ropes 50c are arranged above and below, so that a sufficient scraping width in the height direction can be secured. In addition, in this embodiment, the wire ropes 50c are attached to the connecting member 51 in a state in which both ends (parts outside the pair of mounting portions 53) can be elastically deformed. As a result, when the collected materials are firmly packed or when the wire ropes 50c come into contact with obstacles other than the collected materials, the wire ropes 50c can be elastically deformed so as to avoid the collected materials or obstacles (hereinafter referred to as obstacles, etc.). As a result, it is possible to avoid the rotation of the rotor 50 being stopped when the wire rope 50c hits an obstacle or the like, so that the objects can be smoothly collected without stopping the collection device 10.

[0104] In the example shown in Figure 17(b), both ends of the upper wire rope 50c and both ends of the lower wire rope 50c are positioned at approximately the same position in the circumferential direction of the cylindrical portion 51a, but a pair of wire ropes 50c may be provided so that both ends of the upper wire rope 50c and both ends of the lower wire rope 50c are offset by approximately 90° in the circumferential direction of the cylindrical portion 51a.

[0105] In addition, in the example shown in Fig. 17(b), a pair of wire ropes 50c are provided, but the number of wire ropes 50c may be one or three or more. In addition, the configuration of the wire rope is not limited to the example shown in Fig. 17, and a wire rope similar to a known wire rope used as a cutter in a lawnmower or the like may be used.

[0106] As shown in FIG. 18, a rotary blade 50b and a linear body (wire rope 50c) may be provided so as to rotate integrally with the shaft portion 50a.

[0107] In consideration of the rotational startability of the rotor 50, the linear body is preferably provided with a rigidity sufficient to maintain its shape, such as the wire rope 50c, but a linear body that is difficult to maintain its shape, such as a rope made of twisted fibers, may be used. In this case, by attaching a steel weight (for example, a weight like a hammer head that is larger in volume and weight than the weight 50d described above) to the tip of the linear body, the linear body can be extended in the rotational diameter direction of the rotor 50 by the centrifugal force acting on the weight when the rotor 50 rotates. This allows the weight to rotate smoothly, and the collected material 6a can be appropriately collected by the weight. In addition, when the linear body comes into contact with an obstacle, the linear body can be curved to avoid the obstacle. This prevents the rotation of the rotor 50 from stopping when the linear body collides with an obstacle, so that the collected material can be collected smoothly without stopping the collection device 10.

[0108] A linear body other than a rope may be used. Specifically, a linear body having a configuration that extends in the direction of the rotation diameter of the rotor 50 by centrifugal force when the rotor 50 rotates and can be deformed (curved or bent) when it comes into contact with an obstacle or the like may be used instead of a rope. For example, a linear body having a configuration in which a plurality of steel members are linearly connected via a connecting member made of an elastic body may be used. For example, a linear body having a configuration in which a plurality of steel members are linearly connected via a connecting member made of a chain or ring may be used. For example, a linear body having a configuration in which a plurality of steel members are linearly connected via a link mechanism may be used. In these cases, the linear body can be curved or bent around the connecting member or link part. Note that if the linear body can be extended in the direction of the rotation diameter of the rotor 50 by centrifugal force when the rotor 50 rotates, it is not necessary to attach a weight to the linear body, but in order to appropriately apply tension to the linear body, it is preferable to attach a weight to the tip of the linear body. [Industrial Applicability]

[0109] According to the present invention, it is possible to efficiently collect items on the movement route. [Explanation of symbols]

[0110] 10 Recovery device 12 Mobile 14 Collection Department 16 Inclined conveying section 18 Horizontal conveyor 20 Running gear 30 Adjustment device 40 Scraping section 42 Arm section 42a Vertical axis center 44 Fixed blade 46,50 Rotating body 46a Claw part 54 Protective materials 58 Biasing mechanism 100 Remote control device

Claims

1. A device for collecting collected items on a moving path, comprising: A moving body having a traveling device and movable in a forward and backward direction; a scraping portion provided so as to protrude outward from the movable body in a width direction of the movable body and scraping the collected material inward in the width direction; a support portion that supports the raking portion and is provided so as to be swingable about a vertical axis located inside the raking portion in the width direction; A recovery device comprising:

2. The scraping portion has a first rotor that is rotatably provided around a vertical axis, The recovery device according to claim 1 , wherein the first rotating body rotates when the moving body moves to scrape in the recovered materials.

3. The recovery device described in claim 2, wherein when the side on which the scraping portion is located as viewed from the moving body in the fore-and-aft direction of the moving body is defined as the front, the axis of the first rotating body is inclined with respect to the vertical direction so that it is located further rearward as it goes downward.

4. The recovery device according to claim 2 or 3, wherein the first rotor has a rotary blade and / or a linear body extending in a radial direction of the first rotor when the first rotor rotates.

5. The scraping portion includes a protective member provided below the first rotating body, the protective member has a tapered portion that is inclined so as to be positioned upward toward the outside with respect to the axis of the first rotating body, The recovery device according to claim 2 or 3, wherein an outer circumferential edge of the protective member is positioned inside a rotation region of the first rotating body when viewed in an axial direction of the first rotating body.

6. The recovery device according to claim 1 , further comprising a biasing mechanism that biases the scavenging portion back to the reference position when the scavenging portion swings from a reference position at which the scavenging portion protrudes most in the width direction relative to the movable body.

7. The recovery device according to claim 1 , wherein the scraping portion is provided on one side and the other side of the moving body in the width direction.

8. The recovery device according to claim 1 , further comprising an inclined transport section that transports the recovered material scraped in by the scraping section obliquely upward toward the inside of the moving body.

9. The recovery device according to claim 8 , wherein the raking section and the inclined transport section are supported by the moving body so that their positions in the up-down direction relative to the traveling device can be adjusted freely.

10. The recovery device according to claim 9 , wherein the scraping portion and the inclined transport portion are supported on the movable body so as to move up and down integrally.

11. The recovery device according to claim 9 , further comprising an adjustment device that adjusts vertical positions of the take-in section and the inclined transport section by being operated by a remote control device.

12. The recovery device according to claim 8 , further comprising a horizontal transport section that transports the recovered material transported upward by the inclined transport section in a horizontal direction.

13. The recovery device according to claim 12 , wherein the horizontal transport section is supported by the moving body so as to be rotatable about a vertical axis.

14. The recovery device according to claim 12 , wherein the horizontal transport section is supported by the moving body so that an inclination angle of the horizontal transport section with respect to a horizontal plane can be freely adjusted.

15. a second rotor provided between the pick-up section and the inclined transport section in the front-rear direction of the moving body and rotatably about an axis extending in the width direction, The recovery device according to claim 8 , wherein the second rotating body has a plurality of claws, and rotates when the moving body moves to scrape up the recovered material toward the inclined transport section.

16. The recovery device according to claim 15 , wherein when the second rotating body is located forward in a traveling direction of the moving body, the second rotating body rotates forward so that a front side moves downward in the traveling direction of the moving body.

17. The recovery device described in claim 16, wherein when the second rotating body is positioned forward in the direction of travel of the moving body and the movement direction of the multiple claw portions when the second rotating body rotates forward is defined as the forward direction, each of the multiple claw portions is bent so as to be convex toward the forward direction side when viewed from the axial direction of the second rotating body.

18. a plurality of fixed blades provided in front of the inclined conveying section when the side on which the pick-up section is located as viewed from the movable body in the front-rear direction of the movable body is defined as the front; The recovery device according to claim 8 , wherein the plurality of fixed blades are arranged side by side in the width direction and are arranged such that adjacent fixed blades in the width direction are positioned differently in the front-rear direction.

19. The recovery device according to claim 1, further comprising: a detection unit that detects a distance to an object located outside the recovery device in the width direction; and a control unit that controls the traveling device so that the distance detected by the detection unit satisfies a predetermined condition.

Images