JP2006206254A - Self-propelled transport device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a self-propelled transport device capable of performing the transport operation efficiently. <P>SOLUTION: The self-propelled transport device 1 is equipped with a machine body 3 of a hydraulic shovel. On the upper revolver 5 of the machine body 3, a belt conveyor 11 as a transporting means is installed in such a manner as capable of traveling in the vertical direction. The upper revolver 5 of the machine body 3 is furnished rotatably in the vertical direction, with a hopper 21 which takes the grounded condition in the transport operation to send out the object W toward the transport starting point of the belt conveyor 11 and takes the off-grounding condition in the traveling motion. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a self-propelled conveyance device that can efficiently perform conveyance work.

Conventionally, for example, a traveling means, a conveying means such as a belt conveyor that is rotatably attached to the traveling means and conveys a conveyed object, and a conveyed object that is detachably attached to the conveying start end side of the conveying means. There is known a self-propelled transport device that includes a hopper that feeds the transport toward the transport start end of the transport means (see, for example, Patent Document 1).
JP-A-8-301429

  However, in the configuration in which the hopper is attached to the conveyance start end side of the conveyance means as in the conventional self-propelled conveyance device, the hopper cannot be made large due to problems such as strength and weight balance of the conveyance means. May be worse.

  This invention is made | formed in view of such a point, and it aims at providing the self-propelled conveyance apparatus which can perform a conveyance work efficiently.

  The self-propelled conveying device according to claim 1 is provided with a traveling means, a conveying means provided on the traveling means so as to be pivotable in the vertical direction, a conveying means for conveying an object to be conveyed, and the traveling means. And a hopper for sending the toner toward the conveyance start end of the conveyance means.

  And since the hopper which sends a to-be-conveyed object toward the conveyance start end part of a conveyance means is provided in a traveling means, a hopper can be enlarged compared with the past, and it can carry out efficiently.

  The self-propelled transport device according to claim 2 is the self-propelled transport device according to claim 1, wherein the hopper is provided on the travel means so as to be movable up and down, and is set in a grounded state by being moved downward during transport work. The conveyed product is sent out toward the conveyance start end of the conveyance means, and is set to a non-grounded state by upward movement during traveling movement.

  Since the hopper can be selectively set to the grounded state and the non-grounded state, stable transport work and traveling movement are possible.

  According to a third aspect of the present invention, there is provided the self-propelled conveyance device according to the second aspect, further comprising hopper up-and-down moving means for moving the hopper up and down.

  Then, it is not necessary to move the hopper up and down manually, and the hopper can be easily moved up and down by the hopper up-and-down moving means.

  According to a fourth aspect of the present invention, there is provided the self-propelled conveyance device according to any one of the first to third aspects, further comprising hopper vibration means for vibrating the hopper.

  Then, by oscillating the hopper by the hopper vibration means, the object to be conveyed can be efficiently sent toward the conveyance start end portion of the conveyance means.

  According to the first aspect of the present invention, the hopper for sending the object to be conveyed toward the conveyance start end of the conveyance means is provided in the traveling means. Therefore, the hopper can be made larger than before, and the conveyance work can be performed efficiently.

  According to the second aspect of the present invention, since the hopper can be selectively set to the grounded state and the non-grounded state, stable transport work and traveling movement can be performed.

  According to the invention of claim 3, it is not necessary to move the hopper up and down manually, and the hopper can be easily moved up and down by the hopper up-and-down moving means.

  According to the invention which concerns on Claim 4, a to-be-conveyed object can be efficiently sent toward the conveyance start end part of a conveyance means by vibrating a hopper with a hopper vibration means.

  One embodiment of a self-propelled conveyance device of the present invention is described with reference to drawings.

  1 and 2, reference numeral 1 denotes a self-propelled conveyance device. The self-propelled conveyance device 1 is equipped with a hopper for loading a granular object W such as coke coal, ore, and chip material onto a hull 2. This is a type of self-propelled conveyor for shipping.

  The self-propelled conveyance device 1 includes a body 3 of a hydraulic excavator that is a traveling means. The airframe 3 has a crawler-type lower traveling body 4, and an upper revolving body 5 is provided on the lower traveling body 4 so as to be pivotable about a vertical axis (not shown). The upper swing body 5 includes a cab portion 6, a counterweight portion 7, an engine, a hydraulic power source 8 that is a power source such as a hydraulic pump driven by the engine, and the like.

  The upper revolving body 5 of the machine body 3 is set in a grounded state in which the transport start end is grounded during transport work, transports the transported object W, and is set in a substantially horizontal non-grounded state during travel. A belt conveyor 11 serving as a conveying means is provided so as to be rotatable in the vertical direction about a horizontal axis 12. That is, a substantially central portion in the longitudinal direction of the belt conveyor 11 is attached to a bracket (not shown) of the upper swing body 5 of the machine body 3 so as to be rotatable about a horizontal axis 12.

  Further, between the counterweight portion 7 of the upper swing body 5 of the machine body 3 and the other central portion in the longitudinal direction of the belt conveyor 11, the conveyor rocks for rotating the belt conveyor 11 up and down around the shaft 12. A telescopic first hydraulic cylinder 13 as means is provided. Further, a discharge chute 14 for discharging the object W to be transported toward the hull 2 is provided at the end of conveyance of the belt conveyor 11. The inclination angle of the belt conveyor 11 with respect to the horizontal can be adjusted by the first hydraulic cylinder 13.

  Here, the belt conveyor 11 has a conveyor frame 16 which is a longitudinal support frame having a substantially central portion in the longitudinal direction attached to the upper swing body 5 so as to be rotatable about a horizontal axis 12. A plurality of rollers 17 are attached to the frame 16, and a transport belt 18 for placing and transporting the transported object W is wound around these rollers 17. Note that a motor output shaft of a hydraulic motor 19 is connected to the roller 17 located at a substantially central portion in the longitudinal direction of the belt conveyor 11 among the plurality of rollers 17.

  Further, the upper revolving body 5 of the machine body 3 is set in a grounded state by a downward movement at the time of conveyance work, and sends the article W to be conveyed toward the conveyance start end portion of the inclined belt conveyor. A hopper 21 set in a grounded state is provided so as to be movable up and down via a rotating arm (for example, a boom portion of an excavator) 22 as a support means. That is, a hopper 21 separate from the belt conveyor 11 is attached to a bracket (not shown) of the upper swing body 5 of the machine body 3 via a rotation arm 22 so as to be rotatable about a horizontal axis 23. Further, between the upper swing body 5 of the machine body 3 and the turning arm 22, the hopper 21 is moved up and down by turning the turning arm 22 up and down around a horizontal axis 23, for example, a shaft. A telescopic second hydraulic cylinder 24 is provided which is a hopper up-and-down moving means that rotates up and down about 23.

  Here, the hopper 21 is separated from the belt conveyor 11, and can move up and down independently of the belt conveyor 11 with respect to the machine body 3. As shown in FIGS. 3 and 4, the hopper 21 has an upper surface opening 31 for feeding an object to be opened upward and formed at the upper surface, and at the conveyance start end of the belt conveyor 11 below. A lower surface opening 32 that opens toward the bottom has an upper and lower surface opening hopper main body 33 formed in an inclined shape corresponding to the belt conveyor 11, and the hopper main body 33 has a plurality of lower end portions that are grounded. For example, four legs 34 are provided. Of the four legs 34, the two legs 34 on the side of the body 3 are provided with first and second coupling parts 36 and 37 having different heights. Further, the hopper body 33 is provided with a hydraulically driven hopper vibration means 39 that vibrates the hopper body 33 with respect to the leg 34. The upper surface opening 31 of the hopper body 33 is, for example, substantially square, and the length dimension of one side of the upper surface opening 31 is larger than the width dimension of the conveying belt 18 of the belt conveyor 11.

  The rotating arm 22 includes, for example, one arm member 41 provided between the first connecting portion 36 of the leg portion 34 of the hopper 21 and the upper swing body 5 of the body 3, and the leg portion 34 of the hopper 21. The second connecting portion 37 and the arm connecting portion 43 of the arm member 41 are constituted by two stay members 42.

  As shown in FIG. 5, the arm member 41 has a U-shaped portion 46 that is U-shaped in a plan view connected to the first connecting portion 36 of the leg portion 34, unlike a boom of a hydraulic excavator. The U-shaped portion 46 is integrally provided with a base end portion 47 that is connected to the upper swing body 5 so as to be rotatable about the shaft 23. Further, an arm connecting portion 43 for connecting the stay member 42 is provided on the proximal end side of the U-shaped portion 46, and a bearing portion 49 connected to the first connecting portion 36 is provided on the distal end side of the U-shaped portion 46. Is provided. Further, the base end portion 47 is provided with a cylinder connecting portion 48 for connecting the second hydraulic cylinder 24 and a bearing portion 50 connected to the bracket of the upper swing body 5 via the shaft 23.

  The hydraulic motor 19, the first hydraulic cylinder (for example, stick cylinder) 13, the second hydraulic cylinder (for example, boom cylinder) 24, and the hydraulically driven hopper vibration means 39 are all supplied from the hydraulic power source 8 of the body 3. It is driven by operating hydraulic pressure.

  Next, the operation and the like of the self-propelled conveyance device 1 according to the embodiment will be described.

  At the time of transporting work to load the transported object W onto the hull 2 using the self-propelled transport device 1, the lower travel body 4 of the machine body 3 is stopped at a desired position, and then the belt conveyor is moved by the extension operation of the first hydraulic cylinder 13. 11 is rotated about an axis 12 to set the belt conveyor 11 in an inclined grounding state, and the second hydraulic cylinder 24 is contracted to move the hopper 21 and the rotating arm 22 together with the axis 23 as the center. And the hopper 21 is set in a grounded state in which the legs 34 are in contact with the ground.

  Then, for example, when the article to be conveyed W is introduced into the vibrating hopper main body 33 from the upper surface opening 31 by a backhoe excavator or a wheel loader, the object W to be conveyed is inclined from the lower surface opening 32 of the hopper main body 33. The belt conveyor 11 is fed onto the conveyance start end portion of the conveyance belt 18, then conveyed by the conveyance belt 18, and discharged to the hull 2 by the discharge chute 14.

  When the self-propelled transport device 1 is moved to a desired position such as in a warehouse by traveling movement after the completion of the loading operation, the second hydraulic cylinder 24 is extended so that the hopper 21 and the rotating arm 22 are integrated with the shaft 23. The hopper 21 is rotated around the center to set the leg 34 in a non-grounded state with the leg 34 away from the ground, and the belt conveyor 11 is rotated about the shaft 12 by the contraction operation of the first hydraulic cylinder 13. The belt conveyor 11 is set to a substantially horizontal ungrounded state.

  According to the self-propelled transport device 1, the hopper 21 is not attached to the belt conveyor 11, but the hopper 21 is attached to the machine body 3. The weight balance is not a problem, and a relatively large hopper 21 can be provided in the body 3 as compared with the conventional case.

  Further, by vibrating the hopper main body 33 of the hopper 21 by the hopper vibration means 39, the object to be conveyed W can be efficiently sent toward the conveyance start end portion of the belt conveyor 11, and the conveyance operation can be performed more efficiently.

  Further, since the hopper 21 can be grounded separately from the belt conveyor 11, the impact vibration of the hopper main body 33 caused by the loading of the object to be conveyed W and the vibration of the hopper main body 33 caused by the hopper vibration means 39 are detected by the belt conveyor. The conveyed object W can be appropriately conveyed by the belt conveyor 11 transmitted to 11.

  Further, by tilting the hopper 21, the inside of the hopper body 33 can be easily cleaned.

  Further, by moving the hopper 21 up and down, the position of the hopper 21 can be adjusted according to the inclination angle of the belt conveyor 11.

  Further, since the hydraulic motor 19, the first hydraulic cylinder 13, the second hydraulic cylinder 24, and the hopper vibration means 39 are driven by the hydraulic pressure supplied from the hydraulic power source 8 which is one power source of the machine body 3, Compared with the case where the sources are separated, the configuration can be simplified and the manufacturing cost can be reduced.

  For example, the leg portion 34 of the hopper 21 may be configured to be extendable and contractable by a hydraulic cylinder.

  Further, a configuration in which the hopper vibration means 39 for vibrating the hopper 21 is not provided, a configuration in which the hopper 21 is not grounded, or the like may be used.

  Furthermore, a configuration in which the hopper 21 is provided on the upper swing body 5 via the lifting arm so as to move up and down, a configuration in which the hopper 21 is fixed to the upper swing body 5 through a fixed arm, and the like may be used.

  Further, the stay member 42 of the rotating arm 22 may be constituted by a hydraulic cylinder which is an expansion / contraction means, and the inclination angle of the hopper 21 with respect to the horizontal may be adjusted by this hydraulic cylinder.

  Further, the conveying means for conveying the article to be conveyed W is not limited to the belt conveyor 11 having the conveying belt 18, and may be a roller conveyor having a plurality of conveying rollers.

  Moreover, the self-propelled conveyance apparatus 1 is not limited to the self-propelled conveyor for shipping used in a port, and may be a self-propelled conveyer that is used in a quarry or the like and conveys raw stones or scraps.

  Further, the hopper up-and-down moving means such as the second hydraulic cylinder 24 may have a function of hopper vibration means for vibrating the hopper 21.

It is a side view at the time of the conveyance operation | work of one Embodiment of the self-propelled conveying apparatus of this invention. It is a side view at the time of the traveling movement of a self-propelled conveyance device same as the above. It is a side view of the hopper of a self-propelled conveyance device same as the above. It is a front view of the hopper of a self-propelled conveyance device same as the above. It is a top view of the arm member of a self-propelled conveyance device same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Self-propelled conveyance apparatus 3 Body of hydraulic excavator which is traveling means
11 Conveyor belt conveyor
21 Hopper
24 Second hydraulic cylinder as hopper vertical movement means
39 Hopper vibration means

Claims (4)

Traveling means;
A transporting means provided on the traveling means so as to be pivotable in the vertical direction;
A self-propelled conveying apparatus comprising: a hopper provided in the traveling means and for delivering an object to be conveyed toward a conveying start end of the conveying means. The hopper is provided so that it can be moved up and down on the traveling means, and is set in a grounded state by being moved downward during transport work, and sends the object to be transported toward the transport start end of the transport means. The self-propelled conveyance device according to claim 1, wherein The self-propelled conveyance device according to claim 2, further comprising hopper vertical movement means for moving the hopper up and down. The self-propelled conveyance device according to any one of claims 1 to 3, further comprising hopper vibration means for vibrating the hopper.

Images