JP5902642B2 - Sugar cane sampling machine - Google Patents

Description

  The present invention relates to a sampling machine that cuts and acquires a sample of a sugar cane as a sample by rotating a cylindrical sample shaft in order to measure the sugar content of the sugar cane.

  Sugar cane prices vary depending on the sugar content, so when sugar companies buy sugar cane from farmers, sugar content is measured for price setting. A conventional sugar cane sampling machine is a stationary type installed on a frame as disclosed in Patent Document 1, for example. That is, a power source device composed of an engine, a hydraulic pump, and the like, and a sampling machine body provided with a drive device driven by the power source device are installed on a frame. The main body of the sampling machine includes a guide frame that is inclined on the frame and is attached by a hydraulic cylinder so that the inclination angle can be adjusted, and a sample shaft case is attached to the guide frame so as to be movable up and down by the hydraulic cylinder. A cylindrical sample shaft rotated by a hydraulic motor is fitted into the sample shaft case. A cylindrical cutting blade for cutting sugar cane is provided at the tip of the sample shaft. Further, a sample extrusion plate that pushes out the sugar cane accommodated in the sample shaft is accommodated in the sample shaft so as to be movable up and down by a hydraulic cylinder.

Japanese Utility Model Publication No. 5-81686

  Sugar cane is harvested from December to April, and the sampling machine is closed from May to November. And when the sugarcane harvesting period comes and it is restarted, the sampling machine including the hydraulic power source device can be adjusted immediately before the harvesting period in order to eliminate problems such as rusting of the equipment due to the long rest period. There was a problem that maintenance such as cleaning was necessary and the cost required for these became high.

  In view of the above problems, an object of the present invention is to provide a sugar cane sampling machine that can reduce the labor and cost required for adjustment and maintenance and can effectively operate the sampling machine.

The sugar cane sampling machine of the present invention is
A hydraulic excavator in which an upper swing body is installed on a lower traveling body, and a multi-joint work front including a boom and an arm is attached to a swing frame of the upper swing body;
A sampling attachment attached to the boom instead of the arm of the hydraulic excavator, or attached to the arm instead of a bucket attached to the tip of the arm;
The sampling attachment is pivotally attached to the boom by an arm cylinder for pivoting a hydraulic excavator, or a guide frame pivotally attached to the arm by a bucket cylinder for pivoting a hydraulic excavator,
A sample shaft case that is lifted and lowered by the lifting drive device along the guide frame;
The lower part protrudes downward from the sample shaft case and is fitted to the sample shaft case so as to be rotatable. The tip bracket provided at the lower end of the guide frame is axially movable and rotatably fitted. With sample axis,
A cylindrical cutting blade provided at the lower end of the sample shaft;
A rotation drive device attached to the sample shaft case and rotating the sample shaft;
The sample shaft was fitted into the sample shaft so as to be capable of moving up and down in the axial direction, and lowered by a sample extrusion driving device attached in the sample shaft case, so that it was cut out and accommodated in the sample shaft by the cutting blade. A sample extrusion plate for extruding a sample from within the sample shaft ;
And a compression plate that is attached to the tip bracket of the guide frame and that compresses the sugar cane by pressing the accumulated sugar cane by lowering the guide frame .

In the present invention , a sampling machine is configured by attaching a sampling attachment instead of an arm or bucket of a hydraulic excavator, and a power source device (power unit) of the hydraulic excavator is used as a power source device of the sampling attachment. Since the power source device of a hydraulic excavator is in normal operation and is adjusted and maintained on a daily basis, when the sugarcane harvest season comes, it is only necessary to adjust and maintain only the sampling attachment, which is necessary for adjustment and maintenance. Labor and cost are reduced. In addition, since the hydraulic excavator can be operated at times other than the sugar cane harvesting period, the operation rate of the entire machine can be increased by operating as a hydraulic excavator and operating as a sampling machine.

In addition, since the compression plate is provided at the end bracket, the sugar cane is sampled in a compacted state, so there is no gap between the sugar cane accumulated on the truck bed, etc., and the collected sugar cane falls or the sampled sugar cane Sampling mistakes such as insufficient weight are prevented.

It is a side view which shows an example of the hydraulic shovel which is a base machine of the sugar cane sampling machine of this invention. It is a side view showing one embodiment of a sugar cane sampling machine of the present invention. It is a side view which shows the attachment for sampling of this embodiment in the state which the sample shaft case raised. FIG. 4 is a partially enlarged view of the sampling attachment of FIG. 3. It is a bottom view of the sampling attachment of this embodiment. It is sectional drawing which shows the internal structure of the sampling attachment of this embodiment. It is a side view which shows the attachment for sampling of this embodiment in the state which lowered | hung the sample shaft case. It is a side view which shows the apparatus arrangement | positioning in the sampling operation | work of the sampling machine of this embodiment. It is a side view which shows the sample collection operation state in the sampling machine of this embodiment. It is a side view which shows the collection | recovery operation state to the collection box after the sample collection in the sampling machine of this embodiment.

  FIG. 1 is a side view showing an example of a hydraulic excavator which is a base machine of a sugar cane sampling machine according to the present invention. In this hydraulic excavator, a turning frame 3 a is installed on a lower traveling body 1 via a turning device 2, and a power unit 4 and a cab 5 are mounted on the turning frame 3 a to constitute an upper turning body 3. The work front 6 attached to the revolving frame 3a includes a boom 8 that can be raised and lowered by a boom cylinder 7, an arm 11 that is attached to the boom 8 by a arm cylinder 10 around a pin 9a, and a pin to the arm 11 And a bucket 14 that is pivotably mounted by a bucket cylinder 13 around 12.

  FIG. 2 is a side view showing an embodiment of a sugar cane sampling machine constructed using this hydraulic excavator. In the sampling machine shown in FIG. 1, the pin 9a connecting the boom 8 and the arm 11 is pulled out to remove the arm 11 from the boom 8, and the arm cylinder 10 and the arm 11 are connected. The pin 9b is pulled out and the arm 11 is removed from the arm cylinder 10. Then, a sampling attachment 15 is attached instead of the arm 11. The attachment 15 includes a guide frame 16, a sample shaft case 17, and a sample shaft 18.

  As shown in FIG. 3 and FIG. 4 which is a partially enlarged view thereof, a bracket 19 having pin holes 19 a and 19 b for connecting to the boom 8 and the arm cylinder 10 of the hydraulic excavator is provided on the back surface of the guide frame 16. The boom 8 is connected to the bracket 19 by a boss at the tip of the boom 8 and a pin 20 (see FIG. 2) that is inserted into the pin hole 19a, and a pin that is inserted into the boss of the piston rod of the arm cylinder 10 and the pin hole 19b. The arm cylinder 10 is connected to the bracket 19 by 21 (see FIG. 2), and the sampling attachment 15 is attached to the boom 8. Therefore, the position, orientation, posture, etc. of the sampling attachment 15 can be freely set by the turning operation, traveling operation, boom operation and arm operation of the excavator (in this case, the object of the arm operation is the sampling attachment 15). can do.

  The guide frame 16 is provided with guide rails 23 over almost the entire left and right sides thereof. The sample shaft case 17 has a cylindrical shape, and has guide gibs 24a and 24b at the upper and lower portions thereof. As shown in the bottom view of FIG. 5, the sample shaft case 17 is mounted along the guide rail 23 so that it can be moved up and down by fitting the guide gibs 24 a and 24 b to the guide rail 23 so as to be slidable.

  In FIG. 4, reference numeral 25 denotes a hydraulic cylinder provided as an elevating drive device for elevating and lowering the sample shaft case 17. The hydraulic cylinder 25 has a tube 25 a connected to a bracket 26 provided at the upper portion of the guide frame 16 by a pin 27, and a piston rod 25 b connected to a bracket 28 provided at the lower portion of the sample shaft case 17 by a pin 29. Install.

  As shown in the bottom views of FIGS. 3 and 5, the sample shaft 18 has a cylindrical cutting blade 30 at the lower end. The sample shaft 18 is rotatably fitted to the sample shaft case 17 by bearings 31 a and 31 b provided above and below the sample shaft case 17. The specific structure of the bearings 31a and 31b is representatively shown for the bearing 31b in the sectional view of FIG.

  Reference numeral 38 denotes a front end bracket attached to the lower end of the guide frame 16. The front end bracket 38 supports and guides the sample shaft 18 so as to be slidable and rotatable.

  In FIG. 4, 33 is a hydraulic motor attached to the upper end of the sample shaft case 17 in order to rotate the sample shaft 18. The drive pulley 34 is attached to the output shaft of the hydraulic motor 33, the driven pulley 35 is attached to the upper end of the sample shaft 18, and the belt 36 is wound around the pulleys 34 and 35. A rotary drive device that rotates the shaft 18 is configured.

  3 to 5, reference numeral 40 denotes a sample extruding plate for extruding sugar cane accommodated in the sample shaft 18, and 41 denotes a hydraulic cylinder constituting a sample extruding drive device for raising and lowering the sample extruding plate 40. As shown in FIG. 4, the hydraulic cylinder 41 has an upper end of a tube 41 a connected to the upper end of the sample shaft case 17 by a pin 42, and the sample pusher plate 40 is hydraulically connected via a bearing 43 as shown in FIG. 6. The piston rod 41b of the cylinder 41 is rotatably connected. Note that the sampling attachment 15 operates, for example, a hydraulic cylinder 25 that raises and lowers the sample shaft case 17 by an operation lever for a bucket cylinder 13 provided in the cab 5 as a hydraulic excavator, and a sample push-out by a spare operation pedal. The hydraulic cylinder 41 is operated, and the hydraulic motor 33 that rotates the sample shaft 18 can be operated by an attachment switch provided on the operation lever.

  Reference numeral 44 denotes a compression plate attached to the tip bracket 38. The compression plate 38 compresses the compression plate 44 by pressing it against the accumulated sugar cane during sample collection. As shown in FIG. 5, the compression plate 44 is wider than the front end bracket 38 and has a rectangular shape. The compression plate 44 may be configured in other shapes such as a circle.

  FIG. 7 shows a state in which the sample shaft 18 is lowered along the guide frame 16 together with the sample shaft case 17 by extending the hydraulic cylinder 25 in the sampling attachment 15. As shown by the two-dot chain line, the sample extruding plate 40 is extended from the position where the hydraulic cylinder 41 is contracted and raised in the sample shaft 18 as shown by the solid line, as shown by the two-dot chain line. Can be lowered to substantially the same position as the lower end of the cutting blade 30 or a position exposed slightly downward from the cutting blade 30.

  As shown in FIG. 2, the sampling machine of this embodiment is configured by assembling a sampling attachment 15 in place of the arm 11 of the hydraulic excavator. When sampling sugar cane using this sampling machine, as shown in FIG. 8, the sampling machine is placed on the platform 45, and the truck 47 loaded with the sugar cane on the loading platform 48 is placed next to the platform 45. Located in the passage 46. At this time, the hydraulic cylinder 25 is contracted to place the sample shaft case 17 in the raised position, and the hydraulic cylinder 41 is contracted to raise the sample extrusion plate 40 to the uppermost position in the sample shaft 18.

  Next, as shown in FIG. 9, the boom cylinder 7 is contracted and the guide frame 16 is lowered to compress the sugar plate (not shown) in the loading platform 48 with the compression plate 44. At this time, the boom cylinder 7, the arm cylinder 10, and the actuators of the hydraulic excavator such as the turn are operated to prepare the sample of the sugar cane loaded in the loading platform 48 by the compression plate 44. In this state, the hydraulic cylinder 25 is extended and the sample shaft 18 is lowered together with the sample shaft case 17 while the hydraulic motor 33 is driven to rotate the sample shaft 18. Thereby, the sugar cane is sequentially accommodated in the sample shaft 18 while being cut into a columnar shape by the cutting blade 30 provided at the lower end of the sample shaft 18.

  After the sample shaft case 17 and the sample shaft 18 are lowered to the stroke end of the hydraulic cylinder 25 in this way, the hydraulic cylinder 25 is contracted to raise the sample shaft 18 together with the sample shaft case 17. Then, the boom cylinder 7 is extended, and the sampling attachment 15 is separated upward from the loading platform 48.

  Next, as shown in FIG. 10, the turning device 2 is driven to turn the sampling attachment 15 together with the upper turning body 3, and the sampling attachment 15 is positioned on the sugar cane sample storage box 50 set on the frame 45. Let Then, the sugar cylinder sample accommodated in the sample shaft 18 is pushed into the sample storage box 50 by extending the hydraulic cylinder 41 and lowering the sample extrusion plate 40 in the sample shaft 18.

  Thus, since the sugar cane sampling machine of this embodiment is configured using a hydraulic excavator as a base machine, the power unit 4 of the hydraulic excavator can be used as a power source device of the sampling attachment. Here, the hydraulic excavator used as the base machine can be used for other operations in the off-season of sugar cane harvesting. For this reason, since the power unit 4 as a power source device is adjusted and maintained on a daily basis, when the sugarcane harvest season comes, adjustment only for the sampling attachment and maintenance such as rust removal and cleaning may be performed. Labor and cost required for adjustment and maintenance are reduced. In addition, since the hydraulic excavator can be operated at times other than the sugar cane harvesting period, the operation rate of the entire machine can be increased by operating as a hydraulic excavator and operating as a sampling machine.

  Further, since the sampling attachment 15 can be driven by a hydraulic source, a control valve, and an operating device for a hydraulic actuator originally provided in the hydraulic excavator, it is not necessary to make a special modification or a dedicated hydraulic excavator, and the sampling attachment 15 Therefore, the sampling machine can be operated as if the hydraulic excavator is normally operated, and the operability and workability can be improved.

  In this embodiment, the sugar cane is consolidated by the compression plate 44 provided at the lower end of the guide frame 16, and the sugar cane is cut into a column shape by the cutting blade 30 and sampled in this state. The gap between the sugar canes accumulated on the 47 loading platforms 48 is eliminated, and the sampled sugar cane is prevented from falling, and sampling errors such as insufficient weight of the sampled sugar cane are prevented.

  In this embodiment, the sampling attachment 15 is attached instead of the arm 11. However, the boom 8 and the arm 11 are provided, and the sampling attachment 15 is attached to the arm 11 instead of the bucket 14. Good. In addition, when implementing this invention, in the range which does not deviate from the summary of this invention, not only the said embodiment but a various change and addition can be performed.

DESCRIPTION OF SYMBOLS 1: Lower traveling body, 2: Turning apparatus, 3: Upper turning body, 3a: Turning frame, 4: Power unit, 5: Driver's cab, 6: Front for work, 7: Boom cylinder, 8: Boom, 10: Arm cylinder 11: Arm, 13: Bucket cylinder, 14: Bucket, 15: Sampling attachment, 16: Guide frame, 17: Sample shaft case, 18: Sample shaft, 19: Bracket, 23: Guide rail, 24a, 24b: Guide give , 25: hydraulic cylinder, 30: cutting blade, 31a, 31b: bearing, 33: hydraulic motor, 34: drive pulley, 35: driven pulley, 36: belt, 38: tip bracket, 40: sample extrusion plate, 41: hydraulic Cylinder, 43: Bearing, 44: Compression plate

Claims (1)

A hydraulic excavator in which an upper swing body is installed on a lower traveling body, and a multi-joint work front including a boom and an arm is attached to a swing frame of the upper swing body;
A sampling attachment attached to the boom instead of the arm of the hydraulic excavator, or attached to the arm instead of a bucket attached to the tip of the arm;
The sampling attachment is pivotally attached to the boom by an arm cylinder for pivoting a hydraulic excavator, or a guide frame pivotally attached to the arm by a bucket cylinder for pivoting a hydraulic excavator,
A sample shaft case that is lifted and lowered by the lifting drive device along the guide frame;
The lower part protrudes downward from the sample shaft case and is fitted to the sample shaft case so as to be rotatable. The tip bracket provided at the lower end of the guide frame is axially movable and rotatably fitted. With sample axis,
A cylindrical cutting blade provided at the lower end of the sample shaft;
A rotation drive device attached to the sample shaft case and rotating the sample shaft;
The sample shaft was fitted into the sample shaft so as to be capable of moving up and down in the axial direction, and lowered by a sample extrusion driving device attached in the sample shaft case, so that it was cut out and accommodated in the sample shaft by the cutting blade. A sample extrusion plate for extruding a sample from within the sample shaft ;
A sugar cane sampling machine comprising: a compression plate that is attached to the tip bracket of the guide frame and that compresses the sugar cane by pressing the accumulated sugar cane by lowering the guide frame .

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