JP2005298198A - Side conveyer for screen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side conveyer for a screen, not detached from a screen body in transferring, and enough securing the height of delivery of screened material in work. <P>SOLUTION: This side conveyer 60 is used in the screen for screening material to be screened according to the grain size by a sieving device 15 provided on one side in the longitudinal direction of a body frame 7 and conveying and delivering the screened material by a delivery conveyer 30. The conveyer is provided with a conveyer upstream part 65 turned on one side in the width direction of a belt as a fulcrum and a conveyer downstream part 66 rotatably connected to the conveyer upstream part 65, wherein the conveyer upstream part 65 is vertically turned on one side in the width direction of the belt as a fulcrum and the conveyer downstream part 66 is turned to the conveyer upstream part 65 to be accommodated in the side part of the machine frame of the screen. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a side conveyor provided on a screen that sorts recycled raw materials such as crushed stone, wood chips, earth and sand, etc., and recycled products produced therefrom according to the particle size.

  In recent years, demand for recycled product production machines that produce recycled products from various recycled raw materials represented by construction-generated soil, rocks, waste tires, and the like, such as soil improvement machines, crushers, and shredders, has increased. One of the machines that assists the work of these recycled product production machines is, for example, recycled materials supplied to the recycled product production machine or recycled products discharged from the recycled product production machine, and the graded product is classified into granularity. There is a screen to sort according to.

  In general, the screen sorts the object to be sorted according to the particle size by the sieving device, and the sorted product of the predetermined particle size sorted by the sieving device is discharged out of the machine by the discharge conveyor. There is also a type in which sorted products with different particle sizes derived from the sieving apparatus without being guided to the discharge conveyor are separated and discharged to the side of the machine body by the side conveyor (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 10-43690

  In general, considering the collection of as many selected items as possible, and the introduction of the selected items directly into various recycled product production machines that can be arranged in the subsequent stage, the discharge height of the discharge conveyor and side conveyor used for the screen Is preferably as high as possible. However, the height, width and length of the screen body are limited by transportation restrictions on public roads. Therefore, the side conveyor that protrudes largely to the side of the machine must be removed from the screen body during transportation, and must be assembled to the screen body at the site during work. The side conveyor attaching / detaching operation is very troublesome and requires labor and time.

  On the other hand, in the said prior art, a side conveyor is formed in a folding type, and it is comprised so that a side conveyor may be folded by rotating a front-end | tip part upward at the time of transport. However, if a configuration is adopted in which the front end portion of the side conveyor is bent upward, the bent front end portion of the side conveyor may protrude above the machine body and exceed the transport limit height. As a result, in the structure as in the above prior art, the side conveyor cannot have a sufficient length, and it is difficult to ensure a sufficient discharge height of the side conveyor.

  The present invention has been made in view of the above-mentioned matters, and its purpose is not to be removed from the screen main body during transportation, and for a screen that can sufficiently secure the discharge height of the selected item during operation. It is to provide a side conveyor.

  In order to achieve the above-mentioned object, the first invention is used for a screen which sorts an object to be sorted according to the particle size by a sieving device provided on one side in the longitudinal direction of the main body frame, and transports and sorts the sorted article by a discharge conveyor. The side conveyor is provided on one side in the longitudinal direction of the main body frame of the sieving device, and is connected to a conveyor upstream portion that is rotatable about one side in the belt width direction, and is rotatably connected to the upstream portion of the conveyor. A downstream portion of the conveyor, the upstream portion of the conveyor is rotated in the vertical direction with one side in the belt width direction as a fulcrum, and the downstream portion of the conveyor is further rotated with respect to the upstream portion of the conveyor. It can be accommodated in the aircraft side.

  According to a second aspect, in the first aspect, the upstream portion of the conveyor is supported so as to be rotatable with respect to a base frame provided on one side in the longitudinal direction of the main body frame.

  According to a third aspect, in the second aspect, the upstream portion of the conveyor has a longitudinal direction of the main body frame according to a situation at the time of accommodation or operation by sliding the base frame in the longitudinal direction of the main body frame. It is characterized by being slidable.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a drive device that rotates the downstream portion of the conveyor relative to the upstream portion of the conveyor is provided.

  A fifth invention is characterized in that, in any one of the first to fourth inventions, a drive device is provided for rotating the conveyor upstream portion around one side in the belt width direction.

  According to the present invention, the side conveyor includes a conveyor upstream portion that can rotate around one side in the belt width direction as a fulcrum and a conveyor downstream portion that can rotate relative to the conveyor upstream portion. The conveyor can be accommodated almost horizontally on the side of the machine body, and the side conveyor can be easily accommodated and deployed without being removed from the screen body during transportation. And, since the side conveyor can be accommodated in the aircraft side part substantially parallel to the ground surface, the accommodated side conveyor does not increase the height of the aircraft, so that it is within the range of the machine length dimension in the accommodated state. The length of the side conveyor can be ensured as long as it falls within the range, and a sufficient discharge height can be ensured when deployed in the working state.

Hereinafter, an embodiment of a screen side conveyor of the present invention will be described with reference to the drawings.
FIG. 1 is a right side view showing the overall structure of a configuration example of a screen provided with an embodiment of a screen side conveyor of the present invention, FIG. 2 is a top view, FIG. 3 is a left side view, and FIG. FIG. 5 and FIG. 5 are front front views.
In the following description, the left and right in FIG. 1 are the front, rear, or one side in the longitudinal direction of the screen (self-propelled screen in this example), and the bottom and top in FIG. These are the right side, the left side, and the one side and the other side in the width direction, respectively.

  In FIG. 1 to FIG. 5, reference numeral 1 denotes a traveling body. The traveling body 1 includes a track frame 2, a driven wheel 3 provided at one end of the track frame 2, and a drive wheel provided at the other end of the track frame 2. 4, a driving device 5 directly connected to the driving wheel 4, and a crawler belt 6 hung around the driven wheel 3 and the driving wheel 4. The traveling body 1 is provided at a lower portion of a substantially central position in the longitudinal direction of a main body frame 7 (described later), and its longitudinal direction (running direction) dimension is smaller than the longitudinal dimension of the main body frame 7 (for example, the main body frame 7). About 2/3 of the longitudinal dimension).

  The main body frame 7 has a main frame 8 disposed at the upper part of the track frame 2 so that the front end protrudes in front of the traveling body 1, and the rear end portion extends on the main frame 8 behind the traveling body 1. It is comprised with the attachment frame 9 arrange | positioned so that it may take out. The mounting frame 9 includes a lower frame 10 fixed on the main frame 8, a support post 11 erected on the lower frame 10, and an upper frame 12 provided substantially horizontally on the support post 11. Yes. Further, a sieve device 15 is provided on the upper part on one side in the longitudinal direction of the main body frame 7, and a power unit 16 is provided on the upper part on the other side in the longitudinal direction.

  The sieving device 15 sorts the material to be sorted according to the particle size, and includes a lattice 17 having a predetermined mesh size inside, and a support member 18 on the upper frame 12 of the mounting frame 9. The center position in the longitudinal direction is substantially above the rear end of the traveling body 1. Reference numeral 20 denotes a driving device that vibrates the sieving device 15, and the sieving device 15 is vibrated by the driving device 20, so that a sorted material that is larger than the size of the grid 17 among the inputted materials to be sorted is obtained. It is removed so that a small selection is directed downward.

  Reference numeral 21 denotes a hopper, and the hopper 21 plays a role of guiding a sorted product having a predetermined particle size or less that has passed through the lattice 17 of the sieving device 15 onto a lower discharge conveyor 30 (details will be described later). Therefore, the hopper 21 is supported by the mounting frame 9 so as to be positioned between the sieving device 15 and the discharge conveyor 30, and the sorted matter that has passed through the sieving device 15 is reliably received and guided onto the discharge conveyor 30. Thus, it is formed in a schematic frame shape that expands upward.

  The power unit 16 is supported on the other end portion in the longitudinal direction of the main body frame 7 via a support member 22. Although not specifically illustrated for preventing congestion, the power unit 16 includes an engine that is a drive source of the self-propelled screen, at least one hydraulic pump driven by the engine, and the hydraulic pump to each drive unit. A plurality of control valves and the like for controlling the supplied pressure oil are incorporated. Further, the upper part on one side in the longitudinal direction of the main body frame 7 in the power unit 16 is formed in an arc shape so as to be retracted from the discharge conveyor 30, and disposed so that the arc surface 23 is close to the discharge conveyor 30. Has been. In other words, the discharge conveyor 30 is disposed so as to be close to the arc surface 23 of the power unit 16.

  Reference numeral 25 denotes a driver's seat provided in a section on the other side in the width direction of the main body frame 7 in the power unit 16. The driver's seat 25 has a driving seat 25 for performing a traveling operation as shown in FIGS. 2, 3, 5, and the like. A travel operation lever 26 is provided. 27 is an operation lever for operating the discharge conveyor 30 and the side conveyor 60 of the present invention (details will be described later), and 28 is an operation panel for operating other drive devices (described later) and various operation settings. The operation lever 27 and the operation panel 28 are provided on the other side in the width direction of the main body frame 7 on the self-propelled screen and on the front side of the driver seat 25, respectively, so that the operator rises to the driver seat 25. It is designed so that it can be operated from the ground.

  The discharge conveyor 30 is provided so as to incline upward from the lower position of the sieving device 15, that is, the lower position of the hopper 21, toward the other side in the longitudinal direction of the main body frame 7 through the upper portion of the power device 16. . An intermediate portion in the transport direction of the discharge conveyor 30 is supported by a protruding portion 32 that protrudes to the other side in the longitudinal direction of the main body frame 7 in the power unit 16 via a support member 31. Further, the upstream side portion in the transport direction is supported on the substantially central portion in the longitudinal direction of the main body frame 7 via the support member 33.

  Reference numeral 35 denotes a conveyor frame of the discharge conveyor 30. Drive wheels 36 and driven wheels 37 are rotatably provided at both front and rear ends of the conveyor frame 35, respectively. Reference numeral 38 denotes a conveyor belt wound around the driving wheel 36 and the driven wheel 37, and 39 denotes a driving device 39 connected to the driving wheel 36. The driving wheel 36 is rotated by the driving device 39 so that the driving wheel 36 and the driven wheel are rotated. The conveyor belt 38 is circulated between the belts 37. Reference numeral 40 denotes a support roller that supports the conveyance surface (upper surface) of the conveyor belt 38 that is circulated. Although not specifically described, a known belt tension adjusting mechanism is provided on the driven wheel 37 side of the discharge conveyor 30.

FIG. 6 is an enlarged side view showing the detailed structure of the discharge conveyor 30. In the figure, the same parts as those in the previous drawings are denoted by the same reference numerals and description thereof is omitted.
As shown in FIG. 6, the conveyor frame 35 includes an upstream frame 46 that forms a frame of the conveyor upstream portion 45 in the conveyance direction, and a downstream frame 48 that forms a frame of the conveyor downstream portion 47 in the conveyance direction. Yes. The upstream frame 46 is supported by the protrusion 32 of the power unit 16 by the support member 31 and the like described above, and is supported by the main body frame 7 by the support member 33 (see FIG. 1). In addition, brackets 50 and 51 connected via pins 49 are attached to the lower side of the opposite end portions of the upstream frame 46 and the downstream frame 48, respectively. Further, a support member 52 is fixed to the lower side of the downstream frame 48, and both ends of a hydraulic cylinder 53 are rotatably connected to the support member 52 and the projecting portion 32 of the power unit 16. Yes. Accordingly, the conveyor downstream portion 47 rotates in the vertical direction with respect to the conveyor upstream portion 45 as the hydraulic cylinder 53 expands and contracts.

  At this time, brackets 54 and 55 are attached to the sides of the upstream frame 46 and the downstream frame 48, respectively. The bracket 54 has a plurality of pin holes 56 formed at predetermined intervals on an arc centered on the pin 49. With this configuration, the downstream frame 48 is firmly fixed to the upstream frame 46 by fixing the bracket 55 with the pin 57 to the pin hole 56 corresponding to the rotation angle of the downstream frame 48.

  Returning to FIG. 1 to FIG. 5, 59 is a base frame for loading the side conveyor 60 of the present invention. The base frame 59 is provided on one side in the longitudinal direction of the main body frame 7, and the mounting frame 9 is slidable in the longitudinal direction of the main body frame 7 according to the situation when the side conveyor 60 is housed or operated. The opposite end to the (lower frame 10) is inserted into the mounting frame 9 (lower frame 10) from one side in the longitudinal direction. Reference numeral 61 denotes a hydraulic cylinder that slides the base frame 59, and both ends of the hydraulic cylinder 61 are rotatably connected to brackets provided on the lower side of the lower frame 10 and the base frame 59, respectively. In addition, a turning frame 63 capable of turning around a turning shaft 62 is provided on the upper portion of the base frame 59.

  The side conveyor 60 according to the present invention is configured to move a sorted product having a predetermined particle size or more that moves on the lattice 17 of the sieving device 15 and falls to the rear side of the aircraft among the items to be sorted put into the sieving device 15. The base end portion is attached to one side in the longitudinal direction of the main body frame 7, strictly speaking, the revolving frame 63.

  The side conveyor 60 rotates in the vertical direction with the end portion on one side (lower side in FIG. 1) in the width direction (belt width direction) of the turning shaft 62, the turning frame 63, and the turning frame 63 as a fulcrum. It consists of a conveyor upstream portion 65 on the base end side that is movably supported, and a conveyor downstream portion 66 that is rotatably connected to the conveyor upstream portion 65. The conveyor upstream portion 65 is provided on the other side in the longitudinal direction of the main body frame 7, and is supported by the turning shaft 62 so as to be rotatable with respect to the base frame 63 via the turning frame 63. At this time, the discharge conveyor 30 is disposed at a position shifted from the center in the width direction of the traveling body 1 to one side in the width direction of the main body frame 7, as shown in FIGS. For example, when traveling or transporting, the side conveyor 60 is folded in the space on the other side of the machine body on the other side in the width direction of the main body frame 7 created by shifting the discharge conveyor 30 in this manner and substantially parallel to the ground surface ( That is, it can be accommodated in a substantially horizontal state. 1 to 5 show a state in which the side conveyor 30 is accommodated.

  Reference numeral 67 denotes a base of the conveyor upstream portion 65. The base 67 is connected to the revolving frame 63 by pins 68 as shown in FIG. Reference numeral 69 denotes a hydraulic cylinder as a drive device for rotating the conveyor upstream portion 65 with one side in the belt width direction (that is, the pin 68) as a fulcrum, and both ends of the hydraulic cylinder 69 can be rotated with respect to the base 67 and the revolving frame 63. It is connected to. Further, an upstream frame 70 forming a frame of the side conveyor upstream portion 65 is connected to the base 67 so as to be rotatable with respect to the base 67 via a pin 71 as shown in FIG.

  Reference numeral 72 denotes a downstream frame forming a frame of the conveyor downstream portion 66. As shown in FIG. 2 and the like, the upstream frame 70 and the downstream frame 72 are rotatably connected to each other by connecting brackets 73 and 74 attached to the upstream frame 70 and the downstream frame 72 via pins 75, respectively. Reference numeral 76 denotes a hydraulic cylinder as a drive device for rotating the downstream frame 72 relative to the upstream frame 70, and both ends of the hydraulic cylinder 76 are connected to the base 67 and the downstream frame 72 so as to be rotatable. .

  80 is a drive wheel provided at the downstream end of the downstream frame 72, 81 is a driven wheel provided at the upstream end of the upstream frame 70, and 82 is a conveyor belt wound around the drive wheel 80 and the driven wheel 81. Reference numeral 83 denotes a drive device connected to the drive wheels 80. After the side conveyor 60 is developed as described later, the drive wheels 80 are rotated by the drive device 83, whereby the conveyor belt 82 is moved between the drive wheels 80 and the driven wheels 81. It is designed to circulate. Reference numeral 84 denotes a plurality of support rollers that support the conveying surface of the conveyor belt 82 that circulates and 85 denotes a leg that supports the downstream frame 72 from the ground when the side conveyor 60 is in an operating state. Although not particularly shown, a known belt tension adjusting mechanism is provided on the side of the driven wheel 81 of the side conveyor 60.

FIG. 7 is an operation explanatory view showing a procedure for developing the side conveyor 60 according to the present invention.
When the side conveyor 60 is unfolded from the accommodated state of FIG. 7A, first, the hydraulic cylinder 76 is extended, and as shown in FIG. The conveyor downstream portion 66 is rotated so as to be substantially linear. Next, the hydraulic cylinder 69 is contracted, and as shown in FIG. 7C, the side conveyor 60 is rotated about one side in the width direction as a fulcrum to be in a horizontal state. In this state, the hydraulic cylinder 76 is further extended, and as shown in FIG. 7 (d), the side conveyor 60 is rotated with respect to the base 67 so as to be inclined upward toward the downstream side, and is brought into an operating state. Turn around. Then, the legs 85 are pulled out, and the conveyor downstream portion 66 is supported from the ground so that the side conveyor 60 is stably fixed in the state of FIG.
The right side view and rear side front view of the screen with the side conveyor 60 deployed in this manner are shown in FIGS. 8 and 9 corresponding to FIGS. 1 and 4, respectively.

When the side conveyor 60 is accommodated, a procedure reverse to the procedure shown in FIG. 7 is performed. That is, the leg 85 is folded from the state of FIG. 7 (d), the hydraulic cylinder 76 is retracted by a predetermined amount to make the side conveyor 60 substantially horizontal (the state of FIG. 7 (c)), the hydraulic cylinder 69 is extended, The side conveyor 60 is rotated in the vertical direction with one side in the width direction (belt width direction) as a fulcrum (state shown in FIG. 7B). Next, the hydraulic cylinder 76 is further retracted, and the conveyor downstream portion 66 is rotated so that the downstream portion 66 of the side conveyor 60 is substantially perpendicular to the conveyor upstream portion 65 (state of FIG. 7A).
Thereby, the side conveyor 60 is accommodated substantially horizontally in the side part of an airframe, for example at the time of transport or traveling.

  Further, as described above, the side conveyor 60 is supported by the turning frame 63. Since the turning frame 63 can turn with respect to the base frame 59 via the turning shaft 62, the side conveyor 60 can be turned by turning the turning frame 63.

FIG. 10 is an operation explanatory view showing the turning procedure of the side conveyor 60 of the present invention.
FIG. 10A shows the same state as FIG. 7C. When turning the side conveyor 60, first, the hydraulic cylinder 61 is extended, and as shown in FIG. 10B, the base frame 59 is slid in a direction protruding from the mounting frame 9, and the side conveyor 60 is moved. Secure space for swiveling. When the base frame 59 is protruded, the operator pushes the side conveyor 60 to rotate the turning frame 63 (see FIG. 1 and the like) around the turning shaft 62 (see FIG. 1 and the like), as shown in FIG. In addition, the side conveyor 60 is turned so as to face in the opposite direction to FIG. At this time, a turning device that rotates the turning shaft 62 may be provided separately, and may be turned hydraulically or electrically without human intervention. When the procedure so far is completed, the hydraulic cylinder 61 is contracted and the base frame 59 is slid to the mounting frame 9 side, and the side conveyor 60 is slid to the operating position as shown in FIG. When operating the side conveyor 60 in this state, the procedure described in FIG. When returning the side conveyor 60 to the state of FIG. 10A again, the procedure reverse to the above is performed.

  The operation of the self-propelled screen will be described. For example, as shown in FIGS. 7A to 7D, the side conveyor 60 is developed to the state shown in FIGS. When an object to be sorted is put into the sieving device 15, a sorted material having a predetermined particle size or less that has passed through the lattice 17 of the sieving device 15 is introduced into the lower hopper 21. Sorted materials received by the hopper 21 are guided onto the discharge conveyor 30, and are transported and discharged by the discharge conveyor 30 to the outside in the longitudinal direction on the other side (for example, the right side in FIG. 8). On the other hand, a selected product having a predetermined particle size or more that does not pass through the lattice 17 of the sieving device 15 moves on the lattice 17 and falls onto the side conveyor 60. And the sorting thing which fell on the side conveyor 60 is conveyed by this side conveyor 60, and is discharged | emitted by the side (in this case, the left side in FIG. 9) of a body.

  As described above, according to the present embodiment, the side conveyor 60 can be rotated with the conveyor upstream portion 65 rotatable about one side in the belt width direction, and the conveyor downstream portion 66 rotatable with respect to the conveyor upstream portion 65. It is set as the structure provided with. Accordingly, the side conveyor 60 can be accommodated almost horizontally on the side of the machine body during transportation and traveling, and it is not necessary to remove the side conveyor 60 from the screen body during transportation, which involves troublesome assembly and installation work. Therefore, it can be easily accommodated and deployed, improving workability and contributing to shortening the work period. Since the side conveyor 60 can be accommodated substantially horizontally on the side of the machine body, as shown in FIG. 11, when the screen is transported by a trailer having a smaller capacity, the transportation height limit H on the public road is limited. Can be satisfied and excellent transportability is ensured. In addition, since the side conveyor 60 in the accommodated state does not increase the height dimension of the machine body, the length of the side conveyor 60 can be ensured as long as it is within the range of the machine length dimension in the accommodated state, and the working state is maintained. When deployed, a sufficient discharge height can be secured.

  Further, in the present embodiment, it is also a great merit that the side conveyor 60 can be expanded and accommodated by merely extending and retracting the hydraulic cylinders 61, 69, and 76 without requiring manual operation. Furthermore, since the side conveyor 60 can be swung, the discharge position of the conveyed product can be changed according to the work, and the layout at the operation site is also good. In addition, since the base frame 59 that supports the side conveyor 60 is configured to be slidable, a work space can be created around (backward) the sieving device 15, so that the maintainability of the sieving device 15 can be improved. it can.

FIG. 12 is a right side view showing the overall structure of another configuration example of a screen provided with an embodiment of the screen side conveyor of the present invention.
The screen of this example is equipped with a sieve device 90 constituted by a so-called rotary screen, instead of the vibration-type sieve device 15.

  The sieving device 90 shown in FIG. 12 has a sieving surface 91 constituted by arranging a plurality of rotors, each of which is configured by attaching a plurality of rotating bodies to a rotating shaft through a predetermined gap, at a predetermined interval. The sieving surface 91 is inclined downward toward the other side in the longitudinal direction of the main body frame 7, specifically toward the conveying surface of the conveyor belt 38 of the discharge conveyor 30. Below the sieving surface 91, a chute surface 92 that is inclined downward toward one side in the longitudinal direction of the main body frame 7, specifically, toward the conveying surface of the conveyor belt 82 of the side conveyor 60 is provided.

  In the above-described sieving device 15, a selected product having a predetermined particle size or less that has passed through the lattice 17 is guided to the discharge conveyor 30, and a selected product having a predetermined particle size or greater that does not pass through the lattice 17 is guided to the side conveyor 60. On the other hand, in the sieving device 90 in this example, the sieving surface 91 having a size smaller than the gap between the rotating bodies passes through the sieving surface 91, and a selected particle having a predetermined particle size or less is guided to the chute surface 92 to be side conveyor When the size is larger than the gap between the rotating bodies of the sieving surface 91, the screened material is guided to the sieving surface 91 and guided to the discharge conveyor 30 without passing through the sieving surface 91. Other configurations and operations are substantially the same as the configuration example of the screen described above with reference to FIGS.

  Thus, the side conveyor 60 of the present invention can also be applied to a screen provided with the sieve device 90 which is a rotary screen, and the same effect as described above can be obtained. In addition, the side conveyor 60 of the present invention can be applied not only to the sieving device 90 constituted by a rotary screen but also to a screen on which a fixed sieve, a roll screen or the like is mounted. Of course, the present invention can also be applied to a screen provided with an upper portion of the sieve device. In these cases, the same effect as described above can be obtained.

  In the above description, the case where the side conveyor of the present invention is applied to the self-propelled screen provided with the traveling body 1 having the crawler belt 6 is illustrated and described. However, the present invention is not limited to this. The present invention may be applied to a traveling screen. Further, the screen side conveyor of the present invention is applicable not only to a self-propelled screen but also to a stationary screen. Furthermore, although the screen through which the discharge conveyor 30 is passed above the power unit 16 has been illustrated and described, the present invention is also applicable to a screen in which the discharge conveyor passes below the power unit and a screen in which the power unit is upstream of the discharge unit. Is possible. In these cases, the same effect as described above can be obtained.

It is a right side view showing the whole structure of one structural example of the screen provided with one Embodiment of the side conveyor for screens of this invention. It is a top view showing the whole structure of one structural example of the screen provided with one Embodiment of the side conveyor for screens of this invention. It is a left side view showing the whole structure of one structural example of the screen provided with one Embodiment of the side conveyor for screens of this invention. It is a back side front view showing the whole structure of one structural example of the screen provided with one Embodiment of the side conveyor for screens of this invention. It is a front side view showing the whole structure of one structural example of the screen provided with one Embodiment of the side conveyor for screens of this invention. It is an enlarged side view showing the detailed structure of the discharge conveyor provided in the example of 1 structure of the screen provided with one Embodiment of the side conveyor for screens of this invention. It is operation | movement explanatory drawing showing the expansion | deployment procedure of one Embodiment of the side conveyor for screens of this invention. It is a right side view of a configuration example of a screen in a state where one embodiment of the screen side conveyor of the present invention is developed. It is a back side front view of the example of 1 structure of the screen of the state which developed one embodiment of the side conveyor for screens of the present invention. It is operation | movement explanatory drawing showing the turning procedure of one Embodiment of the side conveyor for screens of this invention. It is a side view showing the state where one structural example of the screen provided with one Embodiment of the side conveyor for screens of this invention was loaded on the trailer. It is a right side view showing the whole structure of the other structural example of the screen provided with one Embodiment of the side conveyor for screens of this invention.

Explanation of symbols

7 Main body frame 15 Sieve device 30 Discharge conveyor 59 Base frame 60 Side conveyor (side conveyor for screen)
65 Conveyor upstream part 66 Conveyor downstream part 69 Hydraulic cylinder (drive device)
76 Hydraulic cylinder (drive device)
82 Conveyor belt (belt)
90 Sieve device

Claims (5)

In the side conveyor used for the screen that sorts the object to be sorted according to the particle size by the sieving device provided on one side in the longitudinal direction of the main body frame, and transports and discharges the sorted object by the discharge conveyor,
An upstream portion of the conveyor that is provided on one side in the longitudinal direction of the main body frame of the sieving device and is rotatable around one side in the belt width direction;
A conveyor downstream portion rotatably connected to the conveyor upstream portion,
The conveyor upstream can be accommodated in the machine body side of the screen by rotating the conveyor upstream in the vertical direction with one side in the belt width direction as a fulcrum, and further rotating the conveyor downstream with respect to the conveyor upstream. A side conveyor for screens.   The side conveyor for a screen according to claim 1, wherein the upstream portion of the conveyor is supported so as to be rotatable with respect to a base frame provided on one side in the longitudinal direction of the main body frame.   The upstream portion of the conveyor is slidable in the longitudinal direction of the main body frame in accordance with the situation during storage or operation by sliding the base frame in the longitudinal direction of the main body frame. The side conveyor for screens according to 2.   The side conveyor for a screen according to any one of claims 1 to 3, further comprising a drive device that rotates the downstream portion of the conveyor with respect to the upstream portion of the conveyor.   The side conveyor for a screen according to any one of claims 1 to 4, further comprising a drive device for rotating the upstream portion of the conveyor about one side in the belt width direction as a fulcrum.

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