JP2008272682A - Feeder vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a self-traveling feeder vehicle capable of being certainly reduced in its total length and vehicle height and capable of certainly realizing a self-traveling type crushing system. <P>SOLUTION: The feeder vehicle 3, which constitutes the self-traveling type crushing system 1 is equipped with a feed device 31 for feeding a material to be crushed and left and right traveling bodies 32. The feed device 31 is positioned so that the base end part thereof on the charging side of the material to be crushed is positioned at the height of the traveling bodies 32 and inclined so as to be positioned upward toward the leading end part of the feed device 31. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention particularly relates to a feeder vehicle constituting a self-propelled crushing system.

  Conventionally, it is known to use a self-propelled crusher provided with a traveling body in a mining site or the like with a sufficient work space (Patent Document 1). However, such a self-propelled crusher has a large height, and it has been difficult to place it in a mining site with limited work space, such as in an underground mine. For this reason, as a structure of the self-propelled crusher, the conveyance device that conveys the object to be crushed to the crushing device is mounted on the vehicle body in an inclined posture that is downwardly lowered, and is made to correspond to the rear lowering portion of this conveyance device. It has been proposed to provide a hopper (Patent Document 2). As a result, the position of the hopper is lowered, so that the height of the entire self-propelled crusher can be reduced, and the self-propelled crusher can be deployed in places with height restrictions such as in a mine.

JP 2006-110415 A JP 2004-223319 A

  However, even in the self-propelled crusher described in Patent Document 2, the entire length including the hopper, the conveying device, the crushing device, and the power line for driving each device is still large. The turning radius at the time of moving in the mine also becomes large, which may cause inconvenience. That is, in an underground mine, when a narrow tunnel is stretched around in a mesh shape, cornering (left or right turn) at the intersection of the tunnel and the tunnel becomes difficult, and there is a problem that it cannot move easily. Therefore, it is desired to develop a self-propelled crushing system that can easily move even in a narrow tunnel with cornering.

  An object of the present invention is to provide a self-propelled feeder vehicle that can surely reduce the overall length and the vehicle height and can reliably realize a self-propelled crushing system.

  The feeder vehicle according to claim 1 of the present invention is a feeder vehicle that constitutes a self-propelled crushing system, is equipped with a conveying device that conveys an object to be crushed, and includes left and right traveling bodies, and the conveying vehicle. The apparatus is characterized in that the base end portion on the side to which the object is to be crushed is located at a height between the traveling bodies and is inclined so as to be located upward toward the distal end portion.

  A feeder vehicle according to a second aspect of the present invention is the feeder vehicle according to the first aspect, wherein the feeder vehicle is provided with a body frame, and the conveying device is rotated in a horizontal direction orthogonal to the front-rear direction at an intermediate position in the front-rear direction. The apparatus is characterized in that it is rotatably supported on the machine frame by a moving shaft, and the transfer device and the machine frame are connected by a lift cylinder.

  A feeder vehicle according to a third aspect of the present invention is the feeder vehicle according to the second aspect, in which the traveling hydraulic motor that drives the traveling body, and the traveling hydraulic motor that supplies hydraulic pressure to the traveling hydraulic motor and the lift cylinder are provided. A hydraulic pump; and an engine that drives the traveling body hydraulic pump. The engine is disposed between the left and right traveling bodies, and stores a fuel tank that stores the fuel for the engine, the traveling hydraulic motor, and the lift. At least two devices of a hydraulic oil tank that stores hydraulic oil pressure-fed to a cylinder, an operation panel, and a battery are separately arranged above the left and right traveling bodies.

  A feeder vehicle according to a fourth aspect of the present invention is the feeder vehicle according to any one of the first to third aspects, further comprising a hydraulic hydraulic motor for driving the conveying device, and the hydraulic pressure is applied to the conveying motor. One end of a hydraulic pipe to be supplied is connected, and a coupler is attached to the other end of the hydraulic pipe, and a coupler of a hydraulic pipe for supplying the hydraulic pressure from the outside is connected to the coupler.

  In the above, according to the first aspect of the present invention, since the feeder vehicle is configured by including the conveying device and the traveling body and the crushing device is separated, the overall length of the crusher vehicle can be reduced and the cornering can be satisfactorily performed at the intersection of the tunnel. . In addition, since the end of the conveying device to be crushed material is lowered to a low position between the traveling bodies, the crushed material can be reliably loaded into the conveying device even in a work site where the height is restricted. Thus, a feeder vehicle suitable for a self-propelled crushing system can be provided.

  According to the second aspect of the present invention, the transport device is configured to rotate by the expansion and contraction of the lift cylinder. Therefore, when the transport device moves, the transport device is rotated and turned down to be substantially horizontal along the front-rear direction. The height of the entire feeder vehicle can be lowered.

  According to the invention of claim 3, since the engine is disposed between the left and right traveling bodies, that is, below the transfer device, and many other devices are disposed separately above the left and right traveling bodies, Even when the flexible transport device is in the face down state, the transport device and the equipment including the engine do not interfere with each other, and the transport device is surely turned down until the height of the feeder car is sufficiently low. Can do. In addition, the west part of the engine and the tanks can be refueled, operated on the operation panel, and the battery can be checked without any trouble.

  According to the fourth aspect of the present invention, since the conveying device is driven by the hydraulic pressure supplied from the outside, the feeder vehicle can eliminate the need for equipment that generates the hydraulic pressure for driving the conveying device. The car can be made more compact. Further, the work can be performed without the power of the feeder vehicle (without operating the engine).

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a state during work of the self-propelled crushing system 1 of the present embodiment, and is a cross-sectional view taken along the line II in FIG. FIG. 2 is a plan view showing the self-propelled crushing system 1. FIG. 3 is a view of the crusher vehicle 2 of the self-propelled crushing system 1 as viewed from the front. FIG. 4 is a plan view showing a front side portion of the feeder vehicle 3 of the self-propelled crushing system 1, and FIG. 5 is a view of the feeder vehicle 3 as viewed from the front. FIG. 6 is a diagram showing an outline of a hydraulic circuit used in the self-propelled crushing system 1. In the present embodiment, in FIGS. 1, 2, and 4, the right side in the drawing is the front side, and the left side is the rear side.

[1. (Overview of the entire self-propelled crushing system)
1 and 2, a self-propelled crushing system 1 is composed of a crusher car 2 and a feeder car 3 connected to the front and rear, and is arranged in a mine shaft A of an underground mine. In such a self-propelled crushing system 1, the crusher vehicle 2 and the feeder vehicle 3 are connected at a position sandwiching the ore path B during crushing work. Here, reference symbol A ′ in FIG. 1 is a high ceiling area provided in the mine shaft A. In this high ceiling area A ′, a somewhat high ceiling surface is formed according to the working posture of the feeder vehicle 3. ing. The ore pass B is a shaft for guiding the crushed material from a working tunnel to a tunnel provided in a lower layer.

  An object to be crushed, such as a rock mass, is put into the feeder car 3 by a wheel loader or a belt conveyor (not shown), then sent to the crusher car 2 by the feeder car 3 and crushed by the crusher car 2. The crushed material after being crushed is dropped into an ore pass B provided on the road surface of the mine shaft A, and is loaded on a truck or a conveyor disposed in another mine channel below the ore pass B.

  Therefore, the crushing device 21 is mounted on the crusher wheel 2 that crushes the object to be crushed. The crushing device 21 in this embodiment is a jaw crusher. However, the crushing apparatus applied to the present invention is not limited to the jaw crusher, and may be an impact crusher, a cone crusher, a roll crusher, or the like, and is arbitrary. The driving source of the crushing device 21 is hydraulic pressure from a crushing first hydraulic pump 23 and a crushing second hydraulic pump driven by an electric motor 22 described later. Since the crushed material crushed by the crushing device 2 is directly dropped from the crushing device 2 to the OR path B directly below, the crusher vehicle 2 is not provided with a discharge belt conveyor or the like.

  In addition, the feeder vehicle 3 is equipped with a transport device 31 that transports the object to be crushed to above the crushing device 21 of the crusher vehicle 2. A metal apron feeder is used as the transport device 31 in the present embodiment. The driving source of the conveying device 31 is hydraulic pressure from a conveying hydraulic pump 25 (FIG. 6) driven by the electric motor 22 of the crusher vehicle 2. That is, the conveyance device 31 is driven by hydraulic pressure supplied from the crusher vehicle 2 side.

  On the other hand, when moving in the tunnel A, the crusher vehicle 2 and the feeder vehicle 3 are separated, and each moves independently. In the separated crusher wheel 2 and feeder wheel 3, the length in the front-rear direction alone is sufficiently short, so that cornering at the intersection by the narrow tunnel A is possible. During movement, traveling is performed by remote control so that the operator follows the front side of the crusher vehicle 2 and the feeder vehicle 3.

For traveling, the crusher vehicle 2 is provided with a pair of left and right crawler traveling bodies 26. A driving source of the traveling body 26 is hydraulic pressure from a traveling hydraulic pump 28 driven by an engine 27 described later.
The feeder wheel 3 is provided with a pair of left and right crawler type traveling bodies 32. A driving source of the traveling body 32 is hydraulic pressure from a traveling hydraulic pump 34 driven by an engine 33 mounted on the feeder vehicle 3.

  That is, in the self-propelled crushing system 1, the crushing operation in the crusher vehicle 2 and the feeder vehicle 3 is performed by hydraulic pressure generated by electric drive during the crushing operation, and the hydraulic pressure generated by the engine drive in traveling of the crusher vehicle 2 and feeder vehicle 3 during movement. Is done by. Therefore, since electric drive can be made unnecessary during movement, it is not necessary to move with the power cable connected, and traveling performance can be improved. Also, a large reel around which the power cable is wound can be dispensed with, and accordingly the vehicle height of the crusher vehicle 2 and the feeder vehicle 3 can be lowered.

[2. (Detailed explanation of crusher car)
Hereinafter, the crusher vehicle 2 will be described in detail. 1 to 3, the crusher vehicle 2 includes a metal body frame 40. The body frame 40 includes a frame-shaped main frame 41 provided over the front-rear direction of the vehicle, and traveling frames 42 provided on the left and right sides of the main frame 41. The traveling body 26 is attached to the traveling frame 42.

  The aforementioned crushing device 21 is mounted on the rear side of the main frame 41. The mounting height position of the crushing device 21 is significantly lower than the height position of a conventional self-propelled crusher, and the discharge port 21A of the crushing device 21 is the lowermost surface of the airframe frame 40, specifically the airframe. The traveling frame 42 constituting the frame 40 is located further below the lower surface 42A. The details of the crushing device 21 will be described later.

  On the front side of the main frame 41, as shown in FIG. 6, a crushing first hydraulic pump 23 driven by a motor 22 and a PTO (Power Take Off) 43 by the motor 22, respectively, The second hydraulic pump 24, the conveying hydraulic pump 25, and the fan hydraulic pump 44 are mounted, the engine 27, the traveling hydraulic pump 28 driven by the engine 27, and the cooling unit 45 for cooling the engine 27. A fuel tank 46, a hydraulic oil tank 47, a cooling unit 48 for cooling the hydraulic oil, a power supply panel 49, a battery 50, and the like are mounted. The cooling unit 45 includes a cooling fan driven by a radiator or the engine 27, and the cooling unit 48 includes an oil cooler, a cooling fan 59, and a fan driving hydraulic motor 60. These devices are covered with a metal outer cover 29 having an appropriate size and shape (for example, a shape along the ceiling surface of the mine shaft A shown in FIG. 3). Note that two crushing hydraulic pumps need not be provided, and may be one.

  Among these devices, various hydraulic pumps 23, 24, 25, 28, 44 related to hydraulic oil and fuel, a fuel tank 46, and a hydraulic oil tank 47 are arranged on the right side on the main frame 41. On the other hand, the electric motor 22, the power panel 49, the battery 50, and the like, which are high-voltage electric members, are arranged on the left side on the main frame 41.

  However, the motor 27 and the power panel 49, as well as the engine 27 and the cooling unit 48 for cooling the hydraulic oil are larger in height than other devices, so they are arranged closer to the center in the vehicle width direction (left-right direction). Has been. By carrying out like this, apparatus with a small height dimension can be brought near to both right-and-left both ends, and arrangement | positioning along the ceiling surface (FIG. 3) of the tunnel A is realizable. Therefore, when moving in the tunnel A, the devices mounted on the crusher vehicle 2 are less likely to come into contact with both the left and right positions where the ceiling surface is lowered, and the traveling operation can be performed easily. Further, the front end of the main frame 41 has a shape in which left and right portions are cut away, and this also facilitates the traveling operation.

  As shown in FIGS. 3 and 6, a main valve 51, a transport device drive valve 52, and a travel operation valve 53 are provided on the lower side of the main frame 41. The main valve 51 switches the flow of hydraulic oil between the crushing first and second hydraulic pumps 23 and 24 and a pair of crushing hydraulic motors 54 for driving the crushing device 21. The transfer device drive valve 52 switches the flow of hydraulic oil between the transfer hydraulic pump 25 and a pair of transfer hydraulic motors 55 provided on the feeder wheel 3 side. The traveling operation valve 53 switches the flow of hydraulic oil between the traveling hydraulic pump 28 and the traveling hydraulic motor 58 that drives the final drives 56 and 57 of the traveling bodies 26.

  Here, in FIG. 6, the cooling unit 48 is provided with a fan driving hydraulic motor 60 for driving the cooling fan 59. A reverse electromagnetic valve 61 is provided between the fan hydraulic pump 44 and the fan driving hydraulic motor 60, and the flow of hydraulic oil is switched by the reverse electromagnetic valve 61.

  On the left side surface of the main frame 41, an operation panel 62 for operating the crushing device 21 and the like, and a power supply receiving unit 63 (both in FIG. 1) are provided. The power supply unit 63 is connected to a power cable from a power supply network stretched in the tunnel A. The power supplied to the power supply receiving unit 63 through the power cable is supplied to electrical devices such as the electric motor 22 and the battery 50 through a transformer device, a voltage stabilizing device, and the like provided in the power panel 49.

  A hydraulic pressure supply unit 64 (FIG. 6) is provided on the rear side of the main frame 41. A male side or a female side of a quick coupler 64B attached to a hydraulic pipe 64A from the transport device drive valve 52 is fixed to the hydraulic pressure supply unit 64. The male or female side of the quick coupler 64B is connected to the female or male side of the quick coupler 64D attached to the hydraulic piping 64C from the transfer hydraulic motor 55. Due to the connection between the quick couplers 64B and 64D, the hydraulic oil flows back and forth between the crusher wheel 2 and the feeder wheel 3.

  At the rearmost end of the main frame 41, a pair of left and right crusher vehicle side coupling portions 65 (only the left side is shown in FIG. 1) to which the feeder vehicle 3 is coupled are provided. Details of the crusher vehicle side connecting portion 65 will be described later.

[3. Detailed explanation of crushing device)
Hereinafter, the crushing device 21 mounted on the crusher wheel 2 will be described more specifically. The jaw crusher that is the crushing device 21 includes a fixed jaw 11 and a swing jaw 12 that is swingably provided. The upper end side of the swing jaw 12 is suspended from an eccentric shaft 14 that performs eccentric rotation, and the lower end side is supported by a known reaction force receiving link mechanism (not shown) that receives a reaction force during crushing. A rock block such as ore thrown between the fixed jaw 11 and the swing jaw 12 is narrowed between the fixed jaw 11 due to the swing of the swing jaw 12 and destroyed.

  The eccentric shaft 14 is supported by left and right plate-like side frames 13. In the middle of the side frame 13 in the vertical direction, a horizontal fixing portion 15 protruding outward is continuously provided across the front and rear. The crushing device 21 is mounted in a state where the fixing portion 15 is located above the main frame 41, and is fixed to the main frame 41 by an appropriate fixing means such as a bolt at the fixing portion 15. As a result, as described above, the discharge port 21 </ b> A is located further below the lower surface 42 </ b> A of the traveling frame 42 that is the lowermost side of the body frame 40, and the entire crushing device 21 has sunk downward with respect to the body frame 40. It will be installed in the state.

  A flywheel 16 is attached to both ends of the eccentric shaft 14 (only the left side is shown in FIG. 1). The flywheel 16 is significantly smaller in diameter than that used in a conventional jaw crusher, and the upper end of the swing jaw 12 is higher than the flywheel 16 on the upper side. Such a flywheel 16 is also used as a pulley as it is, and is driven by a crushing hydraulic motor 54 via a plurality of belts wound around the outer periphery.

  In other words, the swing jaw 12 is driven with a large torque by hydraulic pressure. For this reason, the inertia force for efficiently maintaining the swinging motion necessary for crushing is compared with the conventional case driven by an electric motor. The diameter of the flywheel 16 can be greatly reduced. Therefore, conventionally, the flywheel has a very large diameter and the amount of upward protrusion is large. However, in the present embodiment, the amount of upward protrusion of the flywheel 16 can be reduced, and the crusher vehicle 2 is low. We can surely promote the increase.

  Furthermore, in this embodiment, the crushing device 21 is mounted upright so that the tooth surface of the fixed jaw 11 is substantially perpendicular to the horizontal plane (89.8 degrees in this embodiment). That is, since the entire crushing device 21 is laid down on the front side, the fixed jaw 11 that has been in a low position in the past is positioned in a slightly raised state, whereas in the past, The swing jaw 12 located at a high position looks like it has fallen forward. Accordingly, the upper end side of the swing jaw 12 facing the fixed jaw 11, that is, the flywheel 16 side can be shifted downward and the crusher vehicle 2 can be lowered.

  In the crushing device 21 described above, the guard member 17 is erected on the side frame 13. The front end of the conveying device 31 of the feeder car 3 enters between the left and right guard members 17. Since the rock mass thrown from the conveying device 31 is guarded by the guard member 17, there is no fear of falling off the left and right from the throwing opening 21B opened upward.

  At the upper end of the back frame 18 to which the fixed jaw 11 is fixed, a slope 19 inclined downward toward the front of the fixed jaw 11 and a slope 20 inclined downward toward the rear of the fixed jaw 11 are provided. A small diameter rock or the like that falls on the slope 19 on the front side is reliably put into the crushing device 21 and falls directly into the ore pass B from the discharge port 21A without being crushed. Further, small-diameter rocks falling on the rear slope 20 fall to the ore pass B through the rear of the rear frame 18. At this time, the rock is reliably guided to the ore pass B by the chute 100 provided on the feeder vehicle 3 side.

[4. Detailed explanation of feeder car)
Hereinafter, the feeder vehicle 3 will be described in detail. In FIG. 1, the feeder vehicle 3 also includes a metal body frame 70. The body frame 70 includes a main frame 71 provided along the front-rear direction of the vehicle body and a pair of left and right traveling frames 72 to which the traveling body 32 is attached.

  On the rear side of the main frame 71, support brackets 73 protruding upward are provided on the left and right. A slightly rear side of the apron feeder that is the transport device 31 is pivotally supported on the support bracket 73 so as to be rotatable. That is, the transport device 31 is pivotally supported on the body frame 70 by a horizontal pivot shaft that is orthogonal to the front-rear direction at an intermediate position in the front-rear direction.

  As shown in FIG. 4, a cylinder support portion 74 is provided in a box-like portion provided slightly on the front side of the main frame 71. The rod side of the lift cylinder 75 that moves the conveying device 31 up and down is supported on the cylinder support portion 74 so as to be rotatable. The cylinder housing side of the lift cylinder 75 is rotatably attached to the lower surface of the front side of the transport device 31. As a result, the transport device 31 and the body frame 70 are connected via the support bracket 73 and the lift cylinder 75. 1, 2, and 5 show the posture of the conveying device 31 during the crushing operation. In this posture, the lift cylinder 75 extends and the conveying device 31 rises.

  On the front side of the main frame 71, an engine 33, a travel hydraulic pump 34 driven by the engine 33, and a lift hydraulic pump 76 are mounted in the center in the vehicle width direction (left-right direction). As shown in FIG. 6, a traveling operation valve 77 and a lift valve 78 are mounted in the vicinity. The travel operation valve 77 switches the flow of hydraulic oil between the travel hydraulic pump 34 and the travel hydraulic motor 81 that drives the final drives 79 and 80 of the travel bodies 32. The lift valve 78 switches the flow of hydraulic oil between the lift hydraulic pump 76 and the lift cylinder 75.

  The hydraulic oil to the lift cylinder 75 and the traveling hydraulic motor 81 is not supplied from the crusher wheel 2 side, but the hydraulic oil tank 85 (see FIG. 4) on the plate 82 provided on the front left side surface of the main frame 71. , FIG. 5). An operation panel 86 is also placed on the plate 82. The hydraulic oil tank 85 and the operation panel 86 are located just above the right traveling body 32.

  On the other hand, another plate 82 is integrally provided on the front right side surface of the main frame 71 above the right traveling body 32. A fuel tank 83 and a battery 84 are placed on the plate 82.

  These engine 33, various pumps 34 and 76, valves 77 and 78, tanks 83 and 85, battery 84, and operation panel 86 are covered with a suitable exterior cover 87. Here, the engine 33 and the valves 77 and 78 are arranged in the center of the main frame 71, and the tanks 83 and 85, the battery 84, and the operation panel 86 are arranged separately on the left and right of the main frame 71. This is to avoid interference when 31 is turned down. That is, when all the devices are arranged in the center, it is difficult to avoid the interference between the transport device 31 and the devices, and there is a possibility that the configuration for turning the transport device 31 down cannot be realized. In addition, since the equipment is hidden under the transport device 31, the operability and the maintenance system are extremely deteriorated. However, it is arbitrary which tank 83, 85, battery 84, and operation panel 86 are arranged on the left side and which are arranged on the right side, and at least two of them are arranged separately on the left and right. It is not necessary to arrange all devices separately.

  In FIG. 4, the left and right sides of the front end of the main frame 71 are feeder vehicle side connection portions 88 corresponding to the crusher vehicle side connection portion 65 of the crusher vehicle 2. A guide pin 89 protruding horizontally forward is fixed to each feeder vehicle side connecting portion 88. Such a guide pin 89 is inserted into a guide hole 65A provided in the crusher wheel side connecting portion 65 as shown in FIG. With the guide pin 89 inserted into the guide hole 65A, the connecting portions 65 and 88 are brought into contact with each other, whereby the crusher wheel 2 and the feeder wheel 3 are positioned relative to each other. The guide pin 89 and the guide hole 65A constitute the alignment means of the present invention.

  The length of the guide pin 89 needs to protrude further forward than the front end of a hopper 96 (described later) provided in the transport device 31, that is, the portion that is positioned between the guard members 17 of the crushing device 21. is there. However, when the guard member 17 is retractable, the guide pin 89 does not need to protrude beyond the front end of the hopper 96 as illustrated, and the length of the guide pin 89 can be shortened.

  Note that the means for aligning the crusher wheel 2 and the feeder wheel 3 is not limited to the guide hole 65A or the guide pin 89 provided in each of the connecting portions 65 and 88. In FIG. 8, as a modification of the alignment means, a light emitting device 90 that emits visible light such as laser light is provided in the feeder vehicle side connecting portion 88, and a light receiving area of light from the light emitting device 90 is defined. The example which provides the part 65B in the crusher vehicle side connection part 65 is shown. Since such positioning means are provided on both the left and right sides of the crusher wheel 2 and the feeder wheel 3, the crusher wheel 2 and the crusher wheel 2 while maintaining the light emitted from both the light emitting devices 90 within the range of the target portion 65B. When the feeder wheel 3 is brought closer, the connecting portions 65 and 88 can be finally brought into contact with each other at an appropriate position, so that they can be positioned accurately.

  Further, the guide pin 89 and the light emitting device 90 may be provided in the crusher side connecting portion 65, and the guide hole 65A and the target portion 65B may be provided in the feeder vehicle side connecting portion 88.

[5. Detailed explanation of the transport device)
Below, the conveyance apparatus 31 mounted in the feeder vehicle 3 is demonstrated more concretely. The transport device 31 is configured to drive a conveyor 92 made of a number of horizontal metal members 91 laid on the left and right with the left and right drive bodies 93. A sprocket (not shown) driven by a transfer hydraulic motor 55 is provided at the front end of the driving body 93, and an idler 95 is provided at the rear end. The conveyor 92 is hung on the sprocket and idler 95. In the crushing posture, the lower end of the inclined conveying device 31 is lowered to a low position where it enters between the left and right traveling bodies 32, and the rock mass by the wheel loader is used even at a work site where the ceiling surface is low, such as the tunnel A. Can be input.

  A hopper 96 opened upward is continuously provided in the upper part of the transport device 31 in the front-rear direction. The upper edge of the hopper 96 is inclined so that the depth of the hopper 96 gradually decreases from the middle in the front-rear direction to the front. A flange 97 is provided along the edge. The buttocks 97 are inclined so as to be positioned downward as they go outwards so that they have a semi-wing shape (a state in which a bird has half its wings), and in a triangular shape so as to become wider as it goes toward the front side. Is formed. However, the overall width dimension of the hopper 96 including the flange 97 is substantially the same across the front and rear. Further, the lower end edge of the flange portion 97 is provided so as to extend slightly beyond the traveling body 32, but is not provided so as to rub against the ceiling surface or the side wall when moving along the tunnel A.

  Such a flange 97 is applied to the hydraulic oil tank 83, the battery 84, the fuel tank 85, and the operation panel 86 located below, and the rock that has jumped out of the hopper 96 is dropped on those devices. It is preventing.

  Guard members 98 extending downward are provided on the left and right sides of the front end of the hopper 96. The front end of the conveying device 31 is located above the crushing device 21, and at this time, each guard member 98 enters in a state of being close to the inside of the left and right guard members 17 provided in the crushing device 21. The rock mass transported by the transport device 31 is guarded by the guard members 17 and 98 and is reliably put into the inlet 21 </ b> B of the crushing device 21.

  A rotary brushing device 99 is attached to the lower side of the conveying device 31 to drop fine rocks and the like adhering to the conveyor 92 that has turned downward. Further, a chute 100 is provided behind the brushing device 99. The chute 100 has a function of guiding rocks and the like dropped by the brushing device 99 to the ore pass B.

  The upper side of the chute 100 is constituted by a flexible member 101 such as a rubber sheet, and the lower side is constituted by a metal plate member 102. The plate member 102 is disposed between the main frames 71 and is fixed to the main frame 71 at both left and right side portions. When the chute 100 is turned down, the flexible member 101 is bent and enters the lower part of the conveyor 92 (FIG. 9). Such a chute 100 may be provided on the crusher wheel 2 side.

  9 and 10 show the feeder vehicle 3 in a traveling posture in which the lift cylinder 75 is contracted and the conveying device 31 is turned down. In such a traveling posture, the upper edge of the hopper 96 provided in the transport device 31 is lower than the ceiling surface of the mine shaft A. Further, as shown in FIG. 10, the outward inclination direction of the flange portion 97 is substantially along the shape of the ceiling surface, and there is no concern about rubbing against the ceiling surface.

[6. (Connection during moving and crushing work)
In the self-propelled crushing system 1 described above, the crusher vehicle 2 and the feeder vehicle 3 travel independently and move to the crushing work site. First, the crusher wheel 2 is positioned with respect to the ore pass B at the crushing work site. This positioning is performed so that the discharge port 21A of the crushing device 21 mounted on the crusher wheel 2 is positioned directly above the center of the OR path B.

  Thereafter, the feeder wheel 3 is moved closer to the rear of the crusher wheel 2 and the conveying device 31 is lifted at a position separated by a predetermined distance. Next, the feeder pin 3 is moved to the crusher vehicle 2 side so that the guide pin 89 of the feeder vehicle side connecting portion 88 of the feeder vehicle 3 is inserted into the guide hole 65A of the crusher vehicle side connecting portion 65. The portion 88 is brought into contact with the crusher vehicle side connecting portion 65 to position the feeder vehicle 3 with respect to the crusher vehicle 2.

  Here, the guard member 17 provided in the crushing device 21 is made to be retractable and folded downward during traveling, and the guard member 98 on the conveying device 31 side is located above the crushing device 21 during crushing work. The guard member 17 may be raised after being positioned. Alternatively, a hydraulic outrigger may be provided on the rear side of the conveying device 31 so that the outrigger is seated on the road surface during the crushing operation, and the vertical load applied when the rock mass is thrown into the hopper 96 may be received by the outrigger. Instead of providing the outrigger, a retractable leg device may be provided, and the leg device may be seated on the road surface to transmit the load to the road surface only when the conveying device 31 is raised to the crushing posture. .

The best configuration, method, and the like for carrying out the present invention have been disclosed above, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of quantity and other detailed configurations.
Therefore, the description limited to the shape, quantity and the like disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used for crushing work in a site where work space is restricted, such as in a tunnel of an underground mine or in a tunnel, and movement in a mine with cornering.

It is a figure which shows the state at the time of the operation | work of the self-propelled crushing system which concerns on one Embodiment of this invention, and is the II sectional view taken on the line in FIG. The top view which shows a self-propelled crushing system. The figure which looked at the crusher car of a self-propelled crushing system from the front. The top view which shows the front side part of the feeder vehicle of a self-propelled crushing system. The figure which looked at the feeder vehicle from the front. The figure which shows the outline of the hydraulic circuit used for a self-propelled crushing system. The figure which shows the connection part of a crusher vehicle and a feeder vehicle. The figure which shows the modification of the connection part of a crusher vehicle and a feeder vehicle. The side view which shows the attitude | position at the time of driving | running | working of a feeder vehicle. The figure which looked at the posture at the time of driving of a feeder car from the front.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Self-propelled crushing system, 3 ... Feeder vehicle, 31 ... Conveyor device, 32 ... Traveling body, 33 ... Engine, 34 ... Hydraulic pump for traveling, 55 ... Hydraulic motor for conveyance, 64A, 64C ... Hydraulic piping, 64B, 64D ... coupler, 70 ... airframe, 75 ... lift cylinder, 81 ... travel hydraulic motor, 83 ... fuel tank, 84 ... battery, 85 ... hydraulic oil tank, 86 ... operating panel.

Claims (4)

A feeder car constituting a self-propelled crushing system,
While equipped with a transport device that transports the object to be crushed, it has left and right traveling bodies,
The feeder is inclined such that a base end portion on the material input side is located at a height between the traveling bodies and is located upward toward the tip portion. car. The feeder vehicle according to claim 1,
While equipped with a fuselage frame,
The transport device is pivotally supported on the body frame by a horizontal pivot shaft orthogonal to the front-rear direction at a midway position in the front-rear direction, and the transport device and the body frame are connected by a lift cylinder. A feeder vehicle characterized by The feeder vehicle according to claim 2,
A traveling hydraulic motor for driving the traveling body, a traveling hydraulic pump for supplying hydraulic pressure to the traveling hydraulic motor and the lift cylinder, and an engine for driving the traveling body hydraulic pump,
This engine is arranged between the left and right traveling bodies,
At least two devices of a fuel tank that stores the fuel for the engine, a hydraulic oil tank that stores hydraulic oil pressure-fed to the traveling hydraulic motor and the lift cylinder, an operation panel, and a battery are A feeder vehicle characterized by being arranged separately above the traveling body. The feeder vehicle according to any one of claims 1 to 3,
A transport hydraulic motor for driving the transport device;
One end of a hydraulic pipe for supplying hydraulic pressure is connected to the conveyance motor,
A coupler is attached to the other end of the hydraulic pipe,
A feeder vehicle characterized in that a coupler of hydraulic piping for supplying the hydraulic pressure from the outside is connected to the coupler.

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