JP2012218870A - Conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyor capable of suppressing the deviation of a belt in a storage state during transportation while securing easiness of unfolding/storage work and a conveyance property of a processed object when discharging the processed object.SOLUTION: The conveyor 106 conveys and discharges the processed object from a processing device loaded on the machine body of a self-propelled processing machine to the outside of the machine body, and the conveyor 106 can be bent and stored along the machine body by being turned with a bend point 145 provided between an upstream side end and a downstream side end in the conveying path of the processed object as a fulcrum. On the downstream side part of the bend point 145 of a conveyor belt 137 stretched over the upstream side end and the downstream side end of the conveyor 106, a plurality of belt guards 165 and 166 which are arranged from the upper part to the side part of the conveyance surface of the conveyor belt 137 and are freely turnably attached are provided. Accompanying the movement of a connection member 169 connecting the plurality of belt guards 165 and 166, the conveyance surface of the conveyor belt 137 is pressed by the belt guards 165 and 166.

Description

  The present invention relates to a conveyor that conveys and discharges a processed material from a processing apparatus mounted on a self-propelled processing machine that processes the processed material such as a jaw crusher, a shredder, a wood crusher, a soil conditioner, and a screen.

  As a self-propelled processing machine equipped with a processing device for processing the object to be processed into a desired state, for example, a self-propelled machine including a jaw crusher, a shredder, a wood crusher, etc. for crushing the object to be crushed There are various types depending on the application, such as a self-propelled soil improvement machine that mixes and modifies soil crushers with soil improvement materials, a self-propelled screen that sorts objects to be sorted according to particle size, etc. The processing objects are present and processed by the processing apparatus, and the processing objects from the processing apparatus are transported out of the machine body by a conveyor or the like and discharged.

  For example, as one of the self-propelled processing machines, there is known a three-class type vibrating screen that discharges classified products in three directions according to particle sizes, but this type of vibrating screen is a processing device from the rear. Conveyor to be processed is transferred to the screen by the input conveyor that extends above the sieving device, and extends to the front of the machine body and to the left and right sides according to the difference in the particle size of the sorted material. And then discharged (see Patent Document 1).

Special Table 2000-509644

  In the self-propelled processing machine configured to convey the processed material from the processing apparatus to the outside of the machine body by the conveyor as in the above prior art, the size (width, length, height) of the machine body is that of a general road. In many cases, the transport limit is exceeded, and in this case, it is necessary to fold each conveyor during transport to keep the machine body within the transport limit.

  A typical conveyor is constructed by wrapping a conveyor bell around the upstream end and the downstream end. However, when the conveyor is folded, the conveyor belt may come off the carrier roller. In order to perform the unfolding / storage operation smoothly, it is necessary to suppress the deviation of the conveyor belt.

  However, when trying to provide a member to hold the conveyor belt, the transported material that is transported on the conveyor belt may be caught and spilled or damaged by collision with the transported material. It was not easy to effectively suppress the deviation.

  The present invention has been made in view of the above, and suppresses belt deviation in the storage state during transportation while ensuring the ease of deployment and storage operations and the transportability of the processed material when discharging the processed material. It is an object to provide a conveyor that can be used.

  (1) A conveyor that conveys and discharges a processed product from a processing apparatus mounted on a machine body of a self-propelled processing machine to the outside of the machine body, and includes an upstream end portion and a downstream end portion of the processed product conveyance path. A conveyor belt which is bent by rotating around one or more bending points provided between them and can be stored along the machine body, and wound around the upstream end and the downstream end of the conveyor A plurality of belt guards that are disposed on the downstream side of the bending point of the conveyor belt from the upper side to the side of the conveyor belt and are rotatably attached, and connecting members that connect the belt guards. The plurality of belt guards press the conveying surface of the conveyor belt as the connecting member moves.

  (2) In the above (1), preferably, the lower belt is disposed from the lower side to the side of the surface opposite to the conveying surface of the conveyor belt, and is attached to at least one of the plurality of belt guards. A guard is provided, and with the rotation of the belt guard, the lower belt guard rotates integrally with the belt guard and presses the surface opposite to the conveying surface of the conveyor belt.

  (3) In the above (2), preferably, a fixing member that fixes the connecting member so that the belt guard is either in a lying posture with respect to a conveying surface of the conveyor belt or in a standing posture. It shall be provided.

  (4) In the above (2), preferably, the lower belt guard is set to be heavier than the combined weight of the belt guard and the connecting member arranged from the upper side to the side of the conveyor belt. It shall be assumed.

  (5) In the above (4), preferably, as the conveyor is bent and stored from the bending point, the belt guard comes into contact with a buffer member provided on the exterior of the machine body or the main conveyor frame, and the conveyor belt It shall be in the posture which laid down with respect to the conveyance surface.

  (6) In the above (4), preferably, a cord-like member that connects the fixing member and the connecting member provided on the upstream side of the bending point is provided, and the conveyor is bent from the bending point. In this case, the connecting member is pulled by the string-like member, and the plurality of belt guards are set to a posture lying on the conveying surface of the conveyor belt.

  ADVANTAGE OF THE INVENTION According to this invention, the shift | offset | difference of the belt in the storage state at the time of transportation can be suppressed, ensuring the simplicity of an expansion | deployment and storage operation | work, and the conveyance property of the processed material at the time of discharge of a processed material.

It is a side view showing the whole composition at the time of conveyor deployment of a self-propelled vibration screen concerning a 1st embodiment. It is a top view showing the whole composition at the time of conveyor deployment of a self-propelled vibration screen concerning a 1st embodiment. It is a front view showing the whole composition at the time of conveyor deployment of a self-propelled vibration screen concerning a 1st embodiment. It is a side view showing the whole structure at the time of the conveyor storing of the self-propelled vibration screen concerning a 1st embodiment. It is a top view showing the whole structure at the time of the conveyor storage of the self-propelled vibration screen concerning a 1st embodiment. It is a front view showing the whole structure at the time of the conveyor storing of the self-propelled vibration screen concerning a 1st embodiment. It is a side view which shows the structure of the conveyor which concerns on 1st Embodiment. It is a top view which shows the structure of the conveyor which concerns on 1st Embodiment. It is a top view which abbreviate | omits a conveyor belt and shows the structure of the conveyor which concerns on 1st Embodiment. It is a figure which expands and shows the upper side and lower belt guard vicinity of the attitude | position at the time of the conveyance operation of the conveyor which concerns on 1st Embodiment. It is a figure which expands and shows the upper side and lower side belt guard vicinity of the attitude | position at the time of the body transport of the conveyor which concerns on 1st Embodiment. It is a figure which expands and shows the upper side and lower belt guard vicinity of the attitude | position at the time of the conveyance operation of the conveyor which concerns on 2nd Embodiment. It is a figure which expands and shows the upper side and lower belt guard vicinity of the attitude | position at the time of the body transport of the conveyor which concerns on 2nd Embodiment. It is a figure which expands and shows the upper side and lower belt guard vicinity of the attitude | position at the time of the conveyance operation of the conveyor which concerns on 3rd Embodiment. It is a figure which shows the state which stored the conveyor of the prior art in the body.

  Hereinafter, a self-propelled vibration screen will be described as an example of a self-propelled processing machine equipped with a conveyor according to an embodiment of the present invention, and will be described in detail with reference to the drawings.

<First Embodiment>
First, the case where a general conveyor is used for the self-propelled vibrating screen according to the present embodiment will be described as an example, and the basic configuration of the self-propelled vibrating screen will be described.

  1 and 4 are side views showing the overall configuration of the self-propelled vibrating screen according to the first embodiment, FIGS. 2 and 5 are plan views, FIGS. 3 and 6 are front views, and FIGS. Represents the overall configuration when the conveyor is unfolded, and FIGS. 4 to 6 represent the overall configuration when the conveyor is stored. 5 and 6, the conveyor belt of each conveyor is omitted. In the following, the right side and the left side in FIGS. 1 and 4 are the front side and the rear side of the self-propelled screen, respectively.

  1 to 6, a self-propelled vibrating screen 100 has a traveling body 1, a hopper conveyor 3 that is a receiving portion of an object to be selected (object to be processed), and an object to be selected that has been received by the hopper conveyor 3. The main conveyor 4 to be transported, the sieve device 5 that screens the objects to be sorted supplied from the main conveyor 4 according to the particle size, and sorts them into three types, and the sorted product (processed product) that has been sieved by the sieve device 5 Among them, an over conveyor 6 that conveys and discharges a sort having the largest particle size, a middle conveyor 7 that conveys and discharges a sort having an intermediate particle size screened by the sieve device 5, and a sieve device 5 And an under conveyor 8 that transports and discharges the sort of the smallest particle size that has been sieved, and a power unit (power device) 9 that incorporates the power source of the mounted equipment.

  The traveling body 1 includes a pair of left and right traveling devices 10 and a main body frame 11 provided on the traveling devices 10. The traveling device 10 includes left and right track frames 12, driven wheels 13 and drive wheels 14 provided on the front and rear sides of the track frames 12, a traveling hydraulic motor 15 having an output shaft connected to the drive wheels 14, and left and right slave frames, respectively. An endless track crawler belt 16 wound around the driving wheel 13 and the driving wheel 14 is provided. The main body frame 11 is connected to the upper part of the track frame 12 and extends in the front-rear direction.

  The hopper conveyor 3 includes a hopper 21 that receives an object to be sorted, and a feed conveyor 22 (see FIG. 2) accommodated in the hopper 21. The front end portion of the hopper 21 is fixed on the rear end portion of the main body frame 11, and a portion exceeding the rear half is arranged to protrude rearward from the main body frame 11. The inner wall surface of the hopper 21 is inclined so as to reduce the diameter downward, and plays a role of guiding the object to be sorted onto the conveying surface of the feed conveyor 22. The feed conveyor 22 extends horizontally or upwardly in front of the hopper conveyor 3. In addition, an outrigger 23 is provided at the rear end portion of the hopper 21 protruding from the main body frame 11, and the aircraft body is stably supported by installing the outrigger 23 on the ground even during sorting work involving vibration. Further, a chipping grit (fixed sieve) 24 is provided on the upper portion of the hopper 21. The chipping grit 24 is inclined so that the sieve surface is lowered to the right side of the machine body, and drops large foreign matters such as rocks and gravel remaining on the sieve surface when the object to be sorted is thrown to the right side of the machine body.

  The main conveyor 4 supplies the object to be sorted conveyed by the feed conveyor 22 to the sieving device 5, and the front end of the sieving surface of the sieving device 5 from the base end located below the discharge end in front of the feed conveyor 22. It extends in an upward slope to the discharge end located above the vicinity of the part. The main conveyor 4 includes a conveyor frame 26, a head pulley and a tail pulley (not shown) rotatably provided at both front and rear ends of the conveyor frame 26, and a conveyor belt 27 (see FIG. 2) wound around the head pulley and the tail pulley. ) And a main conveyor hydraulic motor 28 connected to the head pulley, and the main pulley hydraulic motor 28 drives the head pulley to circulate and drive the conveyor belt 27 between the head pulley and the tail pulley. Further, the base end side of the conveyor frame 26 is connected to the main body frame 11 so as to be swingable up and down via a rotation shaft (not shown). The discharge end side of the conveyor frame 26 is connected to the base frame 35 of the sieving device 5 via a link arm 29. The conveyor frame 26 is arranged so as to extend linearly from the base end side to the discharge end side during operation, but at the time of movement or the like, the pin 30 (see FIG. 3) is used as a fulcrum at the discharge end side at the middle joint. It has a structure that can be bent downward with respect to the base end side.

  The sieving device 5 uses a two-stage sieving member (not shown) mounted inside the frame-shaped device main body 31 to sort the objects to be sorted according to the particle size into three types. The apparatus main body 31 is supported on the base frame 35 of the sieving apparatus 5 through an elastic body (for example, a spring) so as to be vibrated. The rear side of the base frame 35 is connected to a support member 32 fixed to the front portion of the main body frame 11 via a rotation shaft (not shown). The support member 32 protrudes upward with respect to the main body frame 11, and the rotation shaft of the sieving device 5 is provided in the vicinity of the upper end portion of the support member 32. The front side of the base frame 35 is connected to the support member 32 via a support rod 33. Further, the upper and lower sieve members mounted on the apparatus main body 31 have a coarser upper stage as compared with the lower stage, and the sorted product having the largest particle size (hereinafter appropriately described as oversize) is the upper stage sieve member. Among the selections remaining on the top and having passed through the upper sieve member having a smaller particle size, a selection having a relatively large particle size (hereinafter referred to as middle size as appropriate) is placed on the lower sieve member. The remaining and the selection of the smallest particle size (hereinafter referred to as undersize as appropriate) passes through the lower sieve member. The posture of the sieve device 5 during operation is downwardly inclined toward the rear side (see FIG. 1), and the upper and lower sieve members are inclined in the direction in which the upper and lower sieve members are inclined downward. The oversize and middle size sorts remaining on the top drop down on the sieve surface with the vibration of the apparatus main body 5, and the undersize sorts that have passed through the lower sieve member pass through the sieve apparatus 5 and move downward. Fall.

  The over-conveyor 6 conveys the oversized sorting down the sieve surface of the upper sieve member of the sieving device 5 and discharges it to one side (left side in this example) on the side of the machine body. It is arranged to stand up diagonally toward. The over conveyor 6 includes a conveyor frame 36, a conveyor belt 37 wound around a head pulley and a tail pulley (not shown) rotatably provided at both ends of the conveyor frame 36, and an over conveyor hydraulic pressure connected to the head pulley. A motor 38 and a hopper 39 provided on the conveyor frame 36 so as to face the chute 34 extending from the discharge end of the upper sieve member of the sieve device 5 are provided, and the head pulley is driven by the over conveyor hydraulic motor 38. As a result, the conveyor belt 37 is circulated and driven between the head pulley and the tail pulley, and the oversized sorting received by the hopper 39 is conveyed to the side (left side) of the machine body and discharged. Further, the base end portion of the conveyor frame 36 is connected to the main body frame 11 through a rotating shaft 40 (see FIG. 3) so as to be able to swing up and down, and an over conveyor swing cylinder 48 (see FIG. 3). ). In addition, the conveyor frame 36 can be bent to the left side (the rear side of the machine body) with respect to the base end side with respect to the base end side with a pin (not shown) at the joint part on the way toward the sorting material transport direction, When the machine is moved or transported, the discharge end side is folded and stored behind the machine by an over conveyor storage cylinder (not shown) (see FIG. 4).

  The middle conveyor 7 conveys the middle-size sorted material that has fallen down on the sieve surface of the lower sieve member of the sieve device 5 and discharges it to the other side (right side in this example) of the machine body. 6 is arranged so as to rise obliquely toward the discharge end. The middle conveyor 7 has substantially the same configuration as the over conveyor 6, and is a conveyor frame 41 and a conveyor that is wound around a head pulley and a tail pulley (not shown) rotatably provided at both ends of the conveyor frame 41. A hopper provided on the conveyor frame 41 so that a belt 42, a hydraulic motor 43 for the middle conveyor connected to the head pulley, and a chute (not shown) extending from the discharge end of the lower sieve member of the sieve device 5 face each other. (Not shown), and by driving the head pulley by the middle conveyor hydraulic motor 43, the conveyor belt 42 is driven to circulate between the head pulley and the tail pulley, and the middle size sorting received by the hopper is sent to the machine body side. To the right (right) and discharge. Further, the base end portion of the conveyor frame 41 is connected to the main body frame 11 so as to be swingable up and down via a rotation shaft 47 (see FIG. 3), and is swung up and down by a middle conveyor swing cylinder 44. Move. In addition, the conveyor frame 41 is bent at the joint part on the way, with the pin 45 (see FIG. 4) as a fulcrum, and the discharge end side can be bent to the right side (the rear side of the machine body) in the direction of transporting the selected item. When the machine is moved or transported, the discharge end side is folded and stored rearward of the machine by the middle conveyor storage cylinder 46 (see FIG. 4) (see FIG. 4).

  The under conveyor 8 conveys the undersized sorting that has passed through the lower sieving member of the sieving device 5 and discharges it to the front of the machine body, and rises obliquely from below the sieving apparatus 5 toward the discharge end in front of the machine body. Are arranged as follows. This under conveyor 8 includes a conveyor frame 51, a conveyor belt 52 wound around a head pulley and a tail pulley (not shown) rotatably provided at both ends of the conveyor frame 51, and an under conveyor hydraulic pressure connected to the head pulley. Motor 53, and by driving the head pulley with the under conveyor hydraulic motor 53, the conveyor belt 52 is driven to circulate between the head pulley and the tail pulley, and the undersized sorter that has passed through the lower sieve member is machined. Transport forward and eject. Further, the base end portion of the conveyor frame 51 is connected to an intermediate portion in the vertical direction of the support member 32 at the front portion of the main body frame 11 so as to be swingable up and down via a rotation shaft (not shown). The intermediate portion of the conveyor frame 51 is connected to the base frame 35 of the sieving device 5 via the support rod 55 in the vicinity of the lower end portion of the support member 32 via the sieving device oscillating cylinder 54. As the cylinder 54 expands and contracts, the under conveyor 8 swings up and down together with the sieve device 8 and the main conveyor 4. The under conveyor 8 also has a configuration in which the discharge end side can be bent upward via a pin 56 with respect to the base end side, and the vicinity of the tip end portion on the base end side passes through the under conveyor swing cylinder 57 to the sieving device 5. The discharge end side is connected to the base end side via an under conveyor storage cylinder 58. Along with the expansion and contraction of the under conveyor swing cylinder 57, the under conveyor 8 swings up and down independently of the main body frame 11 separately from the sieving device 5 and the main conveyor 4, and as the under conveyor storage cylinder 58 expands and contracts. The discharge end side of the under conveyor 8 swings up and down with respect to the base end side.

  The power unit 9 incorporates a power source of an operating device mounted in various parts of the machine body such as an engine, a hydraulic pump, a control valve, and the like, and is mounted above the traveling device 10 on the main body frame 11. The power unit 9 is located below the main conveyor 4 and between the hopper conveyor 3 and the over conveyor 6.

  The conveyor according to the present invention is used in place of the over conveyor 6 or the middle conveyor 8 of the self-propelled processing machine as described above. The details will be described below with reference to the drawings. In this example, the case where the conveyor 106 of the present invention is applied to the self-propelled vibrating screen 100 in place of the over conveyor 6 will be described as an example.

  7-9 is a figure which shows the structure of the conveyor which concerns on this Embodiment, FIG. 7 is a side view, FIG. 8 is a top view, FIG. 9 is a top view which abbreviate | omits a conveyor belt.

  7 to 9, the conveyor 106 of the present invention conveys the selected item and discharges it to one side (left side in this example) on the side of the machine body, and is arranged so as to rise obliquely toward the discharge end. ing. The conveyor 106 includes a conveyor frame 136, a conveyor belt 137 wound around a head pulley 160 and a tail pulley 161 rotatably provided at both ends of the conveyor frame 136, and a conveyor hydraulic motor 138 connected to the head pulley 160. The conveyor belt 137 is circulated and driven between the head pulley 160 and the tail pulley 161 by driving the head pulley 160 with the conveyor hydraulic motor 138, and the selected material is conveyed to the side (left side) of the machine body and discharged. .

  The conveyor frame 136 includes a third frame 136c which is a base end portion of the conveyor frame 136 and fixed to the main body frame 11, and a rotary shaft 140 on the discharge end side (downstream side) of the conveyor frame 136 of the third frame 136c. And a second frame 136b that is rocked up and down by a rocking cylinder 162 provided between the third frame 136c and a discharge end side of the second frame ( On the downstream side, with the pin 145 as a fulcrum, the discharge end side of the second frame 136b side is provided so as to be able to bend toward the rear side of the machine body (left side in the direction of transporting the sorting object). The first frame 136a is configured such that the discharge end side is folded rearward of the machine body. In addition, a plurality (9 in this example) of guide rollers 163a to 163i that support the conveyor belt 137 from the lower side during the conveying operation of the selected items are arranged in the conveyor frame 136 with a gap in the longitudinal direction.

  The first frame 136a is a rod-like member having a head pulley 160 at one end and rotatably connected to the second frame 136b by a pin 145 that is a bending point, and the width of the conveyor belt 137. It is formed to fit inside. In the middle of the first frame 136a, a plurality of base members 164a to 164e extending to the outside of both sides of the conveyor belt 137 are provided in the width direction of the conveyor 106, and are spaced apart in the longitudinal direction of the first frame 136a. They are arranged side by side. A plurality of guide rollers 163a to 163e are disposed on the base members 164a to 164e of the first frame 136a.

  The first frame 136a located downstream from the bending point of the conveyor 106 is disposed next to the discharge end side of the guide rollers 163b and 163d from the upper side to the side of the conveying surface of the conveyor belt 137, and both ends thereof are base members. 164b and 164d are provided with at least one (two in this example) upper belt guards 165 and 166 that are pivotably attached in the direction of conveyance of the sorting object with pivoting portions 165a and 166a as fulcrums. The upper belt guard 165 is provided with a lower belt guard 167 which is disposed from the lower side to the side surface of the conveyor belt 137 and is rotatably provided integrally with the upper belt guard 165 with the rotating portion 165a as a fulcrum. Yes.

  Further, the upper belt guards 165 and 166 are located on the front side of the machine body, that is, on the upper side when the conveyor 106 is stored in the machine body (in this example, on the right side in the direction in which the sorted material is conveyed). A connecting member 169 that connects 165 and 166 is disposed along the transport direction, and is rotatably connected to each of the upper belt guards 165 and 166. The connecting member 169 is disposed so as to extend from the base member 164b, 164d portion where the upper belt guards 165, 166 are disposed to the vicinity of the base member 164e on the base end side, and at the end on the base end side. One of the two fixing holes 169a and 169b provided side by side with a space in the longitudinal direction is fixed to a fixing portion 168 provided in the base member 164e by a detachable screw or the like. Then, the upper belt guards 165 and 166 and the lower belt guard 167 expand the conveyor 106 and convey the selection according to which of the fixing holes 169a and 169b of the connecting member 169 is fixed to the fixing portion 168. The posture at the time of transport operation and the posture at the time of transporting the body in which the conveyor 106 is stored and transported (moved) are changed.

  Here, the posture of the belt guards 165 to 167 of the conveyor 106 during the conveying operation and the posture during the transportation of the airframe will be described in detail with reference to FIGS. 10 and 11.

  10 and 11 are enlarged views of the vicinity of the upper and lower belt guards of the conveyor. FIG. 10 shows the posture when each belt guard is in the conveying operation, and FIG. 11 shows the posture when transporting the airframe. Each case is shown.

  As shown in FIG. 10, when the fixing belt 169 a is fixed to the fixing portion 168 by the fixing hole 169 a on the base end side of the two fixing holes 169 a and 169 b of the connecting member 169, the upper belt guards 165 and 166 are interposed via the connecting member 169. It is held above the conveyor 106 in a posture that stands substantially perpendicular to the first frame 136a. Similarly, the lower belt guard 167 is held on the lower side of the conveyor 106 in a posture substantially perpendicular to the first frame 136a. That is, in other words, the upper belt guards 165 and 166 are held in a posture standing substantially perpendicular to the conveyance surface of the conveyor 106 and the lower belt guard 167 is substantially perpendicular to the surface opposite to the conveyance surface. At this time, a sufficient space is ensured between the conveyor belt 137 of the conveyor 106 and each of the belt guards 165 to 167, so that the conveyor belt 137 and each of the belt guards 165 at the time of transporting the sort by the circulation drive of the conveyor belt 137. It is possible to prevent the contact of 167 and the contact / collision between the sorting objects conveyed on the conveyor belt 137 and the belt guards 165 to 167.

  As shown in FIG. 11, when the fixing belt 169b is fixed to the fixing portion 168 with the fixing hole 169b on the distal end of the two fixing holes 169a and 169b of the connecting member 169, the upper belt guards 165 and 166 are connected to the base member 169 via the connecting member 169. It is rotated to the end side and is held in a posture lying on the conveyance surface while pressing the conveyance surface of the conveyor belt 137. Similarly, the lower belt guard is also rotated to the front end side and is held in a posture lying on the surface opposite to the conveying surface while pressing the surface opposite to the conveying surface of the conveyor belt 137. Thus, since each belt guard 165 to 167 is in a lying posture, it can be pressed against the conveyor frame 163 by being in contact with the conveyor belt 137 and the movement of the conveyor belt 137 in the width direction can be suppressed. Even when the conveyor 106 is stored during transportation or movement of the machine body, the conveyor belt 137 can be prevented from being displaced from the conveyor 106.

  The effect of the present embodiment configured as described above will be described in comparison with the prior art.

  FIG. 15 is a diagram illustrating a state in which a conventional conveyor is stored.

  In a self-propelled processing machine configured to convey the processed material from the processing equipment to the outside of the machine by a conveyor and discharge it, the size (width, length, height) of the machine often exceeds the transportation restrictions on general roads. In this case, it is necessary to fold each conveyor during transportation to keep the machine body within the transportation restrictions. A typical conveyor is constructed by wrapping a conveyor bell around the upstream end and the downstream end. However, when the conveyor is folded, the conveyor belt may come off the carrier roller. In order to perform the unfolding / storage operation smoothly, it is necessary to suppress the deviation of the conveyor belt.

  However, as shown in FIG. 15 as a conventional technique, when members 90a to 90c are provided to be held across the conveyor belt 42, the heights of the members 90a to 90c from the conveyor belt 42 are ensured in order to ensure the retractability of the conveyor 7. If the value is set to be low, there is a problem that the sorting object conveyed on the conveyor belt 42 is caught and spilled or damaged by collision with the sorting object. In addition, if the height of the members 90a to 90c from the conveyor belt 42 is set high in order to ensure the transportability of the selected items, the storage performance is deteriorated and the displacement of the conveyor belt during storage is effectively suppressed. Can not do it.

  On the other hand, in the present embodiment, the upper belt is disposed from the upper side to the side of the conveyor belt 137 wound around the upstream end and the downstream end of the conveyor 106, and is rotatably attached. Guards 165 and 166 are provided, and the upper belt guards 165 and 166 are rotated so as to hold the conveyor belt 137 by pressing the conveying surface of the conveyor belt 137. Thus, when the conveyor 106 is deployed, the upper belt guards 165 and 166 are rotated so that a sufficient space is secured between the conveyor belt 137 of the conveyor 106 and the belt guards 165 and 166. It is possible to prevent contact between the conveyor belt 137 and the upper belt guards 165 and 166 at the time of transporting the sorting object by circulation driving, and contact / collision between the sorting object transported on the conveyor belt 137 and the upper belt guards 165 and 166. . Further, when the conveyor 106 is stored, the upper belt guards 165 and 166 arranged across the conveyor belt 137 are turned to be in a sleeping posture, and the upper belt guards 165 and 166 come into contact with the conveyor belt 137 and move toward the conveyor frame 163 side. Since it can be pressed, it is possible to improve the retractability of the conveyor 106 with respect to the airframe while suppressing the conveyor belt 137 from shifting from the conveyor 106. Therefore, it is possible to suppress the belt deviation in the storage state during transportation while ensuring the simplicity of the unfolding / storage operation and the transportability of the processed material when discharging the processed material.

  Further, the lower belt guard 167 is arranged from the lower side to the side opposite to the conveying surface of the conveyor belt 137, and is provided so as to be rotatable integrally with the upper belt guard 165 with the rotating portion 165a as a fulcrum. Since the belt 137 is configured to be pressed on the side opposite to the conveyance surface, the shift of the conveyor belt 137 can be more effectively suppressed.

  In the present embodiment, the upper belt guards 165 and 166 are provided on the base members 164a and 164b on which the guide rollers are disposed. However, a belt guard base member may be provided separately. In this case, the same effect as that of the present embodiment can be obtained.

<Second Embodiment>
A second embodiment of the present invention will be described with reference to the drawings. In this embodiment, the configuration for maintaining and changing the posture of the belt guard in the conveyor of the first embodiment is changed.

  12 and 13 are enlarged views showing the vicinity of the upper and lower belt guards of the conveyor 106A according to the present embodiment. FIG. 12 shows the case where each belt guard is in the posture during the transport operation. Indicates the case when the aircraft is transported. In the figure, the same members as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In FIGS. 12 and 13, the conveyor 106A of the present embodiment conveys the sorted material and discharges it to one side of the machine body as in the first embodiment, and rises obliquely toward the discharge end. Are arranged as follows.

  In the middle of the first frame 136a of the conveyor 106A, a plurality of base members 164a to 164e extending to the outside on both sides of the conveyor belt 137 are provided in the width direction of the conveyor 106, and in the longitudinal direction of the first frame 136a. They are arranged side by side at intervals. A plurality of guide rollers 163a to 163e are disposed on the base members 164a to 164e of the first frame 136a.

  The first frame 136a is arranged next to the discharge end side of the guide rollers 163b and 163d from the upper side to the side of the conveying surface of the conveyor belt 137. Both ends of the first frame 136a are supported by the base members 164b and 164d with the rotating portions 165a and 166a as fulcrums. Are provided with at least one (two in this example) upper belt guards 165 and 166 that are pivotably mounted in the transport direction of the selected item. The upper belt guard 165 is provided with a lower belt guard 167A disposed from the lower side to the side of the surface opposite to the conveying surface of the conveyor belt 137, and the upper belt guard 165 with the rotating portion 165a as a fulcrum. It is provided so that it can rotate integrally. In addition, a connecting member 169A for connecting the upper belt guards 165 and 166 is disposed along the transport direction on the front side of the upper belt guards 165 and 166 (on the right side in the transport direction of the selected item). The belt guards 165 and 166 are rotatably connected to the belt guards 165 and 166, respectively.

  The lower belt guard 167A contacts the holding portion 170 of the base member 164b at a position substantially perpendicular to the longitudinal direction of the first frame 136a when rotating to the base end side, and the base end portion beyond that It is provided so that the rotation to the side is restricted. Accordingly, the upper belt guard 165 that is rotated integrally with the lower belt guard 167A is similarly restricted from rotating from the position that is substantially perpendicular to the longitudinal direction of the first frame 136a to the distal end side. . Further, the lower belt guard 167A rises by rotating the upper belt guards 165 and 166 to the distal end side when rotating to the base end side by its own weight (that is, holding in a posture rising from the conveyance surface). In the state where the conveyor 106A is unfolded, it is possible to maintain the posture during the transport operation for transporting the selection (see FIG. 12). At this time, a sufficient interval is secured between the conveyor belt 137 of the conveyor 106A and each of the belt guards 165, 166, and 167A. Therefore, the conveyor belt 137 and each belt guard at the time of conveying the sort by the circulation drive of the conveyor belt 137. It is possible to prevent contact between 165, 166 and 167A, and contact / collision between the sorting object conveyed on the conveyor belt 137 and each belt guard 165, 166 and 167A. When the conveyor 106A is stored in the machine body, the belt guards 165 and 166 come into contact with buffer members (not shown) provided on the machine body exterior or the conveyor frame 26 of the main conveyor 4 (that is, the main conveyor frame). Thus, the belt guards 165, 166, and 167A are rotated to be in a sleeping posture, and are in contact with the conveyor belt 137 and pressed against the conveyor frame 163 side (see FIG. 13). Accordingly, even when the conveyor 106 is stored during transportation or movement of the machine body, the conveyor belt 137 can be prevented from being displaced from the conveyor 106.

  Other configurations are the same as those of the first embodiment.

  In the present embodiment configured as described above, the same effects as those of the first embodiment can be obtained.

<Third Embodiment>
A third embodiment of the present invention will be described with reference to the drawings. In this embodiment, the configuration for maintaining and changing the posture of the belt guard in the conveyor of the first embodiment is changed.

  FIG. 14 is an enlarged view showing the vicinity of the upper and lower belt guards of the conveyor 106B according to the present embodiment, and representatively shows the case where each belt guard is in the posture during the transport operation.

  In FIG. 14, the conveyor 106 </ b> B according to the present embodiment conveys the sorted material and discharges it to one side of the machine body as in the first embodiment, and is arranged so as to rise obliquely toward the discharge end. Has been.

  In the middle of the first frame 136a of the conveyor 106B, a plurality of base members 164a to 164e extending to the outside on both sides of the conveyor belt 137 are provided in the width direction of the conveyor 106, and in the longitudinal direction of the first frame 136a. They are arranged side by side at intervals. A plurality of guide rollers 163a to 163e are disposed on the base members 164a to 164e of the first frame 136a.

  The first frame 136a is arranged next to the discharge end side of the guide rollers 163b and 163d from the upper side to the side of the conveying surface of the conveyor belt 137. Both ends of the first frame 136a are supported by the base members 164b and 164d with the rotating portions 165a and 166a as fulcrums. Are provided with at least one (two in this example) upper belt guards 165 and 166 that are pivotably mounted in the transport direction of the selected item. The upper belt guard 165 is provided with a lower belt guard 167B arranged from the lower side to the side of the surface opposite to the conveying surface of the conveyor belt 137, and the upper belt guard 165 with the rotating portion 165a as a fulcrum. It is provided so that it can rotate integrally. In addition, a connecting member 169B for connecting the upper belt guards 165 and 166 is arranged along the transport direction on the front side of the upper belt guards 165 and 166 (on the right side in the transport direction of the selected item). The belt guards 165 and 166 are rotatably connected to the belt guards 165 and 166, respectively. The connecting member 169B is disposed so as to extend from the base member 164b, 164d portion where the upper belt guards 165, 166 are disposed to the vicinity of the base member 164e on the proximal end side, and an end portion on the proximal end side Is provided with a hole 174.

  The lower belt guard 167B contacts the holding portion 170 of the base member 164b at a position substantially perpendicular to the longitudinal direction of the first frame 136a when rotating to the base end side, and the base end portion beyond that It is provided so that the rotation to the side is restricted. Therefore, similarly, the upper belt guard 165 that is rotated integrally with the lower belt guard 167B is also restricted from rotating from the position substantially perpendicular to the longitudinal direction of the first frame 136a to the distal end side. . Further, the lower belt guard 167B is turned up by turning the upper belt guards 165, 166 to the tip end side when rotating to the base end side due to its own weight (that is, held in a standing posture with respect to the transport surface). In the state where the conveyor 106B is unfolded, it is possible to maintain the posture during the transport operation for transporting the selection (see FIG. 12). At this time, a sufficient space is secured between the conveyor belt 137 of the conveyor 106B and the belt guards 165, 166, and 167B. It is possible to prevent the contact between 165, 166, and 167B and the contact / collision between the sorting object conveyed on the conveyor belt 137 and each belt guard 165, 166, and 167B.

  One end of a wire 172 that is a string-like member is connected to a hole 174 provided in an end portion on the base end side of the connecting member 169B via a buffer spring 173, and the other end of the wire 172 is bent. It is connected to a holding member 171 provided on the same side as the fixing member provided upstream from the point, that is, the connecting member 169B in the width direction of the second frame 136b. The holding portion 171 has a function of rotating around the axis by the force of a spring or the like to wind up the wire 172. During the transport operation of unfolding the conveyor 106B and transporting the selection, the belt guards 165, 166, and 167B. The slack of the wire 172 is wound with a force that does not hinder the rise due to its own weight.

  Further, when the conveyor 106B is stored in the airframe, that is, when the first frame 136a is bent toward the rear side of the airframe (the back side in FIG. 14) with respect to the second frame 136b, compared to when the conveyor 106B is deployed. The distance between the connecting member 169B and the holding portion 171 is increased. At this time, the loose portion of the wire 172 wound around the holding portion 171 is all released, and the connecting member 169B is pulled to the holding portion 171 side via the wire 172. As a result, the upper belt guards 165 and 166 are rotated to the base end side via the connecting member 169B to hold the conveying surface of the conveyor belt 137 and lie on the conveying surface, and are held in that posture. The That is, as the conveyor 106 is bent and stored from the bending point, the connecting member 169B is pulled by the wire 172, and the upper belt guards 165 and 166 are placed on the conveying surface to hold the conveying surface. . Similarly, the lower belt guard is also held in a posture rotated to the tip side (a posture lying on the conveyance surface). At this time, the belt guards 165, 166, and 167B are in contact with the conveyor belt 137 and pressed against the first conveyor frame 163a, and the movement of the conveyor belt 137 in the width direction can be suppressed. Even when storing the conveyor 106B as in the case of movement, the conveyor belt 137 can be prevented from being displaced from the conveyor 106B.

  Other configurations are the same as those of the first embodiment.

  In the present embodiment configured as described above, the same effects as those of the first embodiment can be obtained.

1 traveling body 3 hopper conveyor 4 main conveyor 5 sieving device 6 over conveyor 7 middle conveyor 8 under conveyor 9 power unit (power unit)
100 Self-propelled vibrating screen (self-propelled processing machine)
106, 106A, 106B Conveyor 136 Conveyor frame 137 Conveyor belts 163a to 163e Guide rollers 164a to 164e Base members 165, 166 Upper belt guards 167, 167A, 167B Lower belt guard 168 Fixed portions 169, 169A, 169B Connecting members 169a, 169b Fixing hole

Claims (6)

A conveyor that conveys and discharges a processed material from a processing device mounted on a body of a self-propelled processing machine to the outside of the body, and is provided between an upstream end and a downstream end of the processing material conveyance path. In a conveyor that can be bent and turned along the body by rotating around one or more bending points,
The conveyor belt is disposed on the downstream side of the bending point of the conveyor belt wound around the upstream end and the downstream end of the conveyor from the upper side to the side of the conveyor belt, and is rotatably attached. With multiple belt guards,
A connecting member for connecting the plurality of belt guards,
The conveyor, wherein the plurality of belt guards press the conveying surface of the conveyor belt as the connecting member moves. The conveyor according to claim 1,
A lower belt guard that is disposed from the lower side to the side of the surface opposite to the conveying surface of the conveyor belt, and is attached to at least one of the plurality of belt guards;
As the belt guard rotates, the lower belt guard rotates integrally with the belt guard and presses the surface opposite to the conveying surface of the conveyor belt. The conveyor according to claim 2,
A conveyor comprising: a fixing member that fixes the connecting member so that the belt guard is either in a lying posture or a standing posture with respect to a conveying surface of the conveyor belt. The conveyor according to claim 2,
The conveyor, wherein the lower belt guard is set to be heavier than the combined weight of the belt guard and the connecting member disposed from the upper side to the side of the conveyor belt. The conveyor according to claim 4,
As the conveyor is bent and stored from the bending point, the belt guard hits a cushioning member provided on the outer body of the machine body or the main conveyor frame and assumes a posture of lying on the conveying surface of the conveyor belt. Conveyor featuring. The conveyor according to claim 4,
A string-like member connecting the fixing member and the connecting member provided on the upstream side of the bending point;
As the conveyor is bent from the bending point and stored, the connecting member is pulled by the string-like member so that the plurality of belt guards lie on the conveyance surface. Conveyor.

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