JP2006200140A - Raw material hopper device in environmental recycle system work machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily discharge a raw material from a raw material hopper by reversely rotatingly driving a feeder 9, when carrying by the feeder 9 with the raw material hopper 3 mounted on an environmental recycle work machine such as a soil improver and clogged with the raw material gets unable to carry and supply. <P>SOLUTION: A rear side plate 11 of the raw material hopper existing on the carrying starting end side of the feeder 9, is freely opened and rocked with an upper end part as a fulcrum. A lock means 12 for locking the rear side plate 11 releases a lock by reversely rotatingly driving the feeder 9, to thereby enable an operator to discharge the clogged raw material without getting on the raw material hopper. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention belongs to the technical field of a raw material hopper device in an environmental recycling work machine such as a soil conditioner or a crusher.

In general, environmental recycle machines such as soil conditioners and crushers are provided with a raw material hopper that inputs raw materials for improving soil quality and raw materials for crushing. There is a feeder (conveyor conveyor) configured as a bottom surface that is transported and supplied to a recycling device disposed on the transport terminal side, where soil is reformed or crushed to be recycled (for example, Patent Document 1).
In such a work machine, when the charged raw material is too large and does not enter the supply port to the recycling apparatus, and when it is caught or clogged, or is caught in the middle, remove these input from the raw material hopper Is required.
JP 2002-167799 A

  However, since the conventional raw material hopper is provided with an upper half portion that expands toward the outer side at the upper edge of the lower half portion that has a rectangular tube shape, the raw material has to be removed. In this case, the operator is forced to get into the raw material hopper, lift it, and take it out of the raw material hopper. There is a problem to be solved by the present invention.

The present invention has been created in view of the above circumstances and has been created for the purpose of solving these problems. The invention of claim 1 includes a raw material hopper that is charged with raw materials by a charging work machine, An environmental recycling system working machine comprising: a recycling apparatus that recycles input raw material; and a transport unit that is provided on a bottom surface of the raw material hopper and that supplies and supplies the input raw material to the recycling apparatus. The side plate on the conveying start end side is pivotally supported by a pivot at the upper end edge so as to be freely swingable, and is configured as an openable side plate, and lock means for unlocking the openable side plate and releasing the lock And a control means for controlling the lock means to release the lock based on the reverse drive of the conveying means. A hopper apparatus.
The invention of claim 2 is a raw material hopper that is charged with raw materials by a charging work machine, a recycling device that recycles the charged raw materials, and a bottom surface of the raw material hopper, and the charged raw materials are used as a recycling device. An environmental recycling work machine configured to include a transporting means for transporting and feeding, wherein the side plate on the transport start end side of the raw material hopper is pivotally supported by the upper end edge pivotably so as to be openable and swingable. And an opening / closing means for opening / closing the openable side plate, and a control means for controlling the opening / closing means to open based on the reverse drive of the conveying means. It is a raw material hopper device in an environmental recycling work machine.
The invention of claim 3 is the environment according to claim 1 or 2, wherein the reverse drive of the transport means is performed based on a signal input from an abnormality detection means that detects a transport abnormality of the transport means. It is the raw material hopper apparatus in a recycling type work machine.
According to a fourth aspect of the present invention, in the first, second, or third aspect, the reverse rotation driving of the conveying means is executed for a preset timer time after the detection of an abnormal conveyance, and the conveying means This is a raw material hopper device in an environmental recycling work machine that is configured to return to normal rotation driving based on the progress of the above.
According to a fifth aspect of the present invention, in the environmental recycling work machine according to the fourth aspect of the present invention, the timer time for reverse rotation is a time required for at least the raw material at the conveyance end to move to a position beyond the conveyance start end. It is a raw material hopper device.

With the invention according to claim 1 or 2, when the raw material put into the raw material hopper is prepared or clogged, the openable side plate is unlocked by reversely driving the conveying means to reversely feed the raw material. The raw material to be fed back is discharged from the side plate to the outside of the machine because it is in a state or opened, and as a result, it is not necessary for the operator to enter the conveying means and remove it one by one as in the prior art. Can be improved.
According to the invention of claim 3, the reverse drive of the transport means is automatically performed by detecting the occurrence of the transport abnormality, thereby improving workability.
According to the fourth aspect of the present invention, when a preset timer time elapses, the transport means automatically returns from the reverse rotation drive to the normal rotation drive, thereby improving workability.
By setting it as invention of Claim 5, the raw material clogged by the conveyance termination | terminus part can be reliably discharged | emitted from a raw material hopper.

  Next, embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a self-propelled soil improvement machine. The soil improvement machine 1 includes a crawler type traveling device 2, a raw material hopper 3 described later, an improver hopper 4 for introducing an improver, a raw material and an improver. It is conventional to use various member devices such as a mixing device 5 that improves the soil quality by mixing and a transport device 6 that transports and discharges the improved soil that has been improved and recycled.

  The raw material hopper 3 has left and right side plates 7 and 8 which are inclined so as to expand outward, the bottom surface is constituted by a feeder (conveying conveyor, conveying means) 9, 7 is configured so that it can be transported and supplied to the mixing device 5 side from a supply port 10 provided at the transport terminal end (front side of the machine body) 7.

The rear plate (conveyance start end plate) 11 of the raw material hopper 3 is pivotally supported on the hopper frame 3a by the support shaft 11a so as to be swingable in the front-rear direction. As a result, the lower end edge of the rear plate 11 swings backward. An openable side plate that opens the rear end is configured.
Reference numeral 12 denotes a locking device. The locking device 12 includes a solenoid (actuator) 14 fixed to the left and right side plates 7 and 8, and an intermediate portion is swingable to the left and right side plates 7 and 8 via a support shaft 13. The lock body 15 is supported by one end and is pivotally supported by the output shaft 14 a of the solenoid 14. A lock groove 15 a is formed at the other end of the lock body 15. . When the output shaft 14a is attracted (moved upward) to the solenoid 14 side, the lock groove 15a is engaged with or disengaged from the locking body 16 protruding outward in the left-right direction from the left and right ends of the rear plate 11 in the closed position. The rear opening operation of the rear side plate 11 can be locked (restricted). The locking device 12 releases the locking of the locking groove 15a to the locking body 16 by swinging the locking body 15 so that the output shaft 14a protrudes (moves downward) from this locking posture and the locking groove 15a moves upward. As a result, the rear plate 11 is allowed to swing backward.
Note that the lock groove 15a has a rear end side inner peripheral edge 15b that is inclined downward and rearwardly, and the output shaft 14a is sucked in a state where the rear side plate 11 is positioned in a slightly forward position in a closed position. The lock groove 15a is locked to the locking body 16 so that the locking can be performed.

  The solenoid 14 is operated based on a control command from a control unit 17 that controls the driving of the feeder 9. The solenoid 14 is controlled using the block circuit diagram shown in FIG. 5 and the flowchart shown in FIG. 6. Explain the procedure. Connected to the control unit 17 are an overload detection sensor 19, a feeder reverse rotation switch 20, an automatic-manual switch 21 and an unlock switch 22 for detecting whether or not the feeder motor 18 is in an overload state. Are input, and necessary control commands are output to the feeder motor 18 and the solenoid 14 based on these input signals.

  The control unit 17 starts up the system by turning on the power, and after initial setting, executes various soil improvement work routines. Among these routines, there is a feeder drive control routine. It is executed as follows. First, the controller 17 outputs a normal rotation command to the feeder motor 18 so that the feeder 9 rotates forward. In this state, it is determined whether the automatic-manual changeover switch 21 is automatic or manual. When it is determined that the automatic-manual switch 21 is automatic, it is determined whether or not the overload detection sensor 19 is in an overload state. Judgment is made. Incidentally, this overload state occurs when a raw material is caught in the supply port 10 and normal driving of the feeder motor 10 is impaired. When the control unit 17 determines that an overload has been detected, the control unit 17 stops the feeder motor 18, sets the timer, and then outputs a reverse rotation command to the feeder motor 18 and outputs to the solenoid 14. Output lock command is output to unlock.

  Then, the control unit 17 sets a timer time for which the feeder 9 is set in advance (a time sufficient for the feeder 9 to move beyond the halfway rotation and the feeder 9 at the supply port 10 position to move beyond the conveyance start end position). When the reverse rotation is determined, the reverse rotation driving is stopped, and then the output shaft immersion command is output to the solenoid 14 to perform the lock operation and the timer reset, Control to drive the feeder 9 forward is executed.

  On the other hand, when the automatic-manual changeover switch 21 is set to manual, it is determined whether or not the reverse rotation switch 20 is ON. If it is determined that the reverse switch 20 is ON, the feeder 9 is stopped and the solenoid After the protrusion command is output to 14 and the lock is released, the feeder 9 is driven in reverse. The reverse drive of the feeder 9 is continuously executed until the reverse switch 20 is turned off.

  In the embodiment of the present invention configured as described above, the raw material charged into the raw material hopper 3 is supplied to the mixing device 5 by the feeding operation of the feeder 9 and is mixed with the soil quality improver to improve the soil quality. In the state where the automatic-manual changeover switch 21 is switched to the automatic state, when the raw material charged into the raw material hopper 3 is clogged in the supply port 10. When the transport load becomes large and an overload is detected, the transport of the feeder 9 is automatically stopped, the lock is released, the rear side plate 11 becomes openable, and the feeder 9 is driven in reverse. As a result, the clogged raw material is reversely conveyed and pushed open the rear side plate 11 in the openable state with a reverse conveying force, and is discharged out of the hopper. As a result, it is not necessary for the operator to enter and remove the feeder 9 from the feeder 9 as in the prior art, and the workability is improved.

  In addition, since the reverse drive of the feeder 9 is automatically performed by detecting the occurrence of a conveyance abnormality, the ON / OFF operation of the feeder reverse switch 20 is performed as in the case where the changeover switch 21 is switched to manual. Eliminates the need to improve workability.

  Furthermore, in this case, the reverse drive of the feeder 9 is automatically returned from the reverse drive to the normal drive after a preset timer time has elapsed, and the workability is improved. Since the time required for the transfer terminal end of the feeder 9 to exceed the transfer start end is reached, the material clogged at the transfer end close to the supply port 10 can be transferred to the transfer start end, and the clogging occurs. The raw material being transported can be transported to the transport start end and reliably discharged from the raw material hopper 3.

  Needless to say, the present invention is not limited to the above-described embodiment, and may be executed by using an opening / closing means for forcibly opening and closing the openable / closable side plate instead of the locking means for the openable / closable side plate. be able to. As the opening / closing means, for example, as shown in FIG. 7, a drive actuator such as a hydraulic cylinder 23 is used, and the hydraulic cylinder 23 is held in a contracted state in a normal operation state in which the feeder motor 18 rotates normally. The rear plate 11 that is the openable / closable side plate is closed, and the hydraulic cylinder 23 is extended in conjunction with the reverse of the feeder motor 18 to maintain the rear plate 11 in the open posture. it can. And what did in this way has the advantage that the state in the raw material feeder 3 can be confirmed through the open rear side plate 11 at the time of this reverse rotation.

It is a side view of a soil improvement machine. It is a top view of a soil improvement machine. It is a side view of a raw material hopper. It is a principal part enlarged view of a raw material hopper. It is a block circuit diagram of a control system. It is a flowchart figure which shows a control procedure. It is a principal part enlarged view of the raw material hopper which shows 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Raw material hopper 9 Feeder 10 Supply port 11 Rear side plate 12 Locking device 14 Solenoid 15 Lock body 16 Locking body 17 Control part 18 Feeder motor 19 Overload detection sensor 20 Automatic-manual changeover switch 21
22 Unlock switch

Claims (5)

  A raw material hopper that is charged with raw materials by a charging work machine, a recycling device that recycles the charged raw materials, and a conveying means that is provided on the bottom surface of the raw material hopper and that conveys the charged raw materials to the recycling device. In the environment-recycling work machine configured as described above, the side plate on the conveying start end side of the raw material hopper is configured to be a releasable side plate by pivotally supporting it through the support shaft at the upper edge so as to be openable. It is characterized by comprising a lock for opening the possible side plate, a lock means for releasing the lock, and a control means for controlling the lock means to release the lock based on the reverse drive of the conveying means. Raw material hopper device in an environmental recycling work machine.   A raw material hopper that is charged with raw materials by a charging work machine, a recycling device that recycles the charged raw materials, and a conveying means that is provided on the bottom surface of the raw material hopper and that conveys the charged raw materials to the recycling device. In the environment-recycling work machine configured as described above, the side plate on the conveying start end side of the raw material hopper is configured to be a releasable side plate by pivotally supporting it through the support shaft at the upper edge so as to be openable. A material for an environmentally recycling work machine comprising: opening / closing means for opening / closing the movable side plate; and control means for controlling the opening / closing means to open based on the reverse drive of the conveying means. Hopper device.   3. The raw material hopper in an environmental recycling work machine according to claim 1 or 2, wherein the reverse drive of the transport means is performed based on a signal input from an abnormality detection means that detects a transport abnormality of the transport means. apparatus.   4. The reverse rotation drive of the conveyance means according to claim 1, wherein the conveyance means is executed for a preset timer time after the detection of the conveyance abnormality, and the conveyance means performs the normal rotation based on the elapse of the timer time. A raw material hopper device in an environmental recycling work machine characterized by being configured to return to driving.   5. The raw material hopper apparatus in an environmental recycling work machine according to claim 4, wherein the timer time for reverse rotation is a time required for at least the raw material at the conveyance end portion to move to a position beyond the conveyance start end portion.

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