JP2006254772A - Reaping apparatus of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To readily fix a reaping unit even by one operator. <P>SOLUTION: In the reaping apparatus 5 of a combine harvester supporting a reaping unit 40 equipped with a pair of left and light grass-dividing plates 41, a conveying apparatus 42 installed behind the grass-dividing plates 41 and a reaping blade 44 arranged behind the grass-dividing plates 41 rotatably in the vertical direction to a mounting frame 46, a lock member 100 for fixing the reaping unit 40 in a state rotated to the upper direction is installed in front of a conveying frame 54 for supporting the grass-dividing plate 41 and the conveying apparatus 42 of the reaping unit 40 and a receiving material 102 of the lock member 100 is installed on the mounting frame 46. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a configuration of a reaping device provided with a plurality of reaping units and provided at a front portion of a combine.

  Conventionally, in a combine, a configuration is known in which a harvesting device composed of a plurality of harvesting units is mounted as a row crop header device for harvesting soybeans, etc., instead of a harvesting device consisting of a scraping reel and a cutting blade, etc. It has become. Each reaping unit of the reaping device is composed of a pair of left and right weed boards, a conveying device disposed behind the weeding board, a cutting blade disposed below the conveying device, and the like. The cereals are transported rearward by a transport device, and are cut with a cutting blade in the process of transporting the cereals, and are then transported to a platform that communicates with the threshing device via a feeder house. .

Such a cutting unit is supported by an attachment frame attached to the platform so as to be rotatable in the vertical direction. A locking member is provided on the mounting frame, while a receiving portion for the locking member is provided on the rear part of the conveying frame that supports the weeding plate and the conveying device of the cutting unit, and the front part of the cutting unit is located above the mounting frame. In the rotated state, the reaping unit is configured to be held in the upwardly rotated state by fixing the lock member of the mounting frame to the receiving member of the transport frame (see, for example, Patent Document 1). .
JP 2004-24023 A

  However, in a conventional combine harvesting device, when holding the weed plate and the transport device in a state of being rotated upward, the operator operates the lock member while rotating the mowing unit upward. Although necessary, since the lock member is provided on the rear side of the cutting unit, it is difficult to reach by hand and it is difficult to work alone. Furthermore, since the lock member protrudes upward to the vicinity of the conveying device of the reaping unit, the culm conveyed by the conveying device may be caught by the locking member during the reaping operation of the cereal. Moreover, when fixing a cutting unit, it was necessary to make it the state rotated upwards, and workability | operativity worsened.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in claim 1, a cutting unit including a pair of left and right weed plates, a conveying device disposed behind the weed plate, and a cutting blade disposed below the conveying device is provided with an attachment frame. In the harvesting device of the combine that is supported so as to be pivotable in the vertical direction, a lock member for fixing the harvesting unit in a state of pivoting upward is provided at the front portion of the harvesting unit, and a receiving member for the locking member is provided on the mounting frame Is provided.

  In claim 2, a cutting unit comprising a pair of left and right weed plates, a conveying device disposed behind the weed plate, and a cutting blade disposed below the conveying device is attached to the mounting frame. In the harvesting device for the combine which is supported so as to be pivotable in the vertical direction, a lock member for fixing the mowing unit in a state of rotating downward is provided at the front portion of the mowing unit, and a receiving member for the lock member is provided on the mounting frame. It is a thing.

  According to a third aspect of the present invention, the lock member is supported on the conveyance frame so as to be rotatable in the vertical direction, and a receiving member for the lock member is provided on the conveyance frame.

  According to a fourth aspect of the present invention, the lock member is configured to be extendable and contractible.

  According to a fifth aspect of the present invention, the lock member is supported by a fulcrum shaft that supports the weed plate on the conveyance frame.

  As effects of the present invention, the following effects can be obtained.

  In claim 1, the mowing unit can be fixed in a state of being rotated upward by a simple operation with the lock member. In addition, since the lock member is disposed on the front side of the cutting unit, the operator operates the locking member while lifting the cutting unit when fixing the cutting unit to the state where the cutting unit is rotated upward. This makes it easy for one person to fix the mowing unit.

  According to the second aspect of the present invention, the mowing unit can be fixed to the upwardly rotated state by a simple operation using the lock member. In addition, it is possible to fix the operator by operating only the lock member without lifting the mowing unit. Therefore, it is possible to reduce labor during fixing of the cutting unit and improve workability.

  According to a third aspect of the present invention, the lock member can be fixed in a state of being disposed directly below the transport frame. Therefore, the lock member does not protrude into the transport path of the cereal straw that is transported by the transport device, and it is possible to prevent the cereal from being caught on the lock member.

  According to the fourth aspect of the present invention, the cutting unit can be moved to an arbitrary height and fixed by adjusting the total length of the lock member. Therefore, the certainty of the fixed state of the cutting unit can be increased.

  According to a fifth aspect of the present invention, the lock member can be provided on the cutting unit with a simple structure.

  1 is a side view of a combine equipped with a mowing apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a side view showing the configuration of the mowing unit, and FIG. 4 is a state in which the mowing unit is fixed. FIG. 5 is a side view showing a configuration of a cutting unit according to another embodiment, and FIG. 6 is a side view showing a state in which the cutting unit according to another embodiment is fixed.

  First, the overall structure of the combine equipped with the reaping device according to the present invention will be described. In addition, in a present Example, it demonstrates using the combine for soybeans.

  As shown in FIGS. 1 and 2, a machine frame 2 is placed on a crawler type traveling device 1, and a threshing device 3 and a sorting device 4 are provided on the machine frame 2. Then, a reaping device 5 is provided in front of the threshing device 3, and the combine continuously mows the culm with the reaping device 5 while traveling on the field with the crawler type traveling device 1, and the threshing device after harvesting the culm 3 so that it can be threshed.

  Further, a grain tank 7 for storing grains selected from the threshing apparatus 3 via the sorting apparatus 4 via the lifting conveyor 6 is provided on the side of the threshing apparatus 3 and the sorting apparatus 4. A grain discharging device 8 is provided behind and above the combine, and the combiner is configured so that the grain in the grain tank 7 can be carried out of the machine body by the grain discharging device 8. Further, a cabin 9 provided with operating means for operating each device is provided in front of the grain tank 7.

  Next, the reaping device 5 will be described.

  As shown in FIGS. 1 and 2, the reaping device 5 includes a plurality of (two in this embodiment) reaping units 40 and 40, a platform 31, a transverse feed auger 32, a feeder house 33, etc. A platform 31 is fixed to the front end of the feeder house 33 communicated with the apparatus 3, and the cutting units 40 and 40 are supported by a mounting frame 46 attached to the front end of the platform 31 so as to be rotatable in the vertical direction.

  Then, a lateral feed auger 32 is installed horizontally in the platform 31, and the cereals harvested by the harvesting units 40, 40 and conveyed rearward by the lateral feed auger 32 are fed backward, and are installed in the feeder house 33. It is configured to be transported to the threshing device 3 by the transport conveyor 35. Further, a cylinder 36 is interposed between the feeder house 33 and the body frame 2, and the cutting device 5 including the cutting units 40 and 40 can be moved up and down by the expansion and contraction operation of the cylinder 36.

  As shown in FIG. 3, the cutting unit 40 is divided by a weed board 41 having a “V” shape in a plan view at the front end of the weed board support frame 72, or by the weed board 41. A conveying device 42 that conveys the leaf stem portion of the cereal posteriorly upward, a disc-shaped cutting blade that is inclined forward and downward, cutting the stem portion of the cereal cocoon conveyed by the conveying device 42 near the ground on the conveying start end side. 44, the gauge wheel 43 etc. which hold | maintain these ground height constant.

  In the cutting unit 40, support portions 47 and 47 are provided upright on both the left and right sides of a mounting frame 46 connected to the platform 31, and a drive shaft 48 and a transport drive shaft 49 are horizontally disposed on the support portions 47 and 47. A transmission pipe 50 that is mounted and that externally fits the conveying drive shaft 49 is pivotally supported with respect to the support portions 47 and 47. And gear case 51 * 51 is provided in the middle part of the transmission pipe 50 at an appropriate interval, and a drive case 52 * 52 with a transmission shaft built up from the gear case 51 * 51 is erected. The transport frames 54 and 54 are fixed to the upper ends of the support frames 53 and 53 erected from the 52 and the mounting frame 46.

  A conveying device 42 is provided on the conveying frames 54 and 54 so as to be front-rear and rear-high. The transport device 42 is composed of a pair of left and right transport bodies 55 and 55. Each of the left and right transport bodies 55 is configured by winding and supporting an endless belt belt 56 with a driving pulley pivotally supported at the rear end portion of the transport body 55 and a driven pulley pivotally supported at the front end portion. Covered with a transport cover 59.

  Each conveyance belt 56 is provided with protrusions 56 a having a certain length in the front-rear direction at predetermined intervals, and arranged in two rows on the conveyance surface of the conveyance belt 56. These left and right conveying belts 56 and 56 obtain driving force from the conveying drive shaft 49 via the transmission shaft and face each other and rotate in opposite directions, so that the protrusions 56a, 56a. Thus, the cereal before harvesting is drawn in, sandwiched between the conveying belts 56 and 56, and conveyed rearward along a conveying path formed between the conveying belts 56 and 56.

  A support stay 70 is rotatably supported by a fulcrum shaft 71 at the front of each of the left and right transport frames 54, and a midway portion of the weed plate support frame 72 is fixed to the support stay 70. A weed plate 41 is fixed to the front end of the weed plate support frame 72 so that the weed plate 41 can be rotated in the vertical direction with a fulcrum shaft 71 as a fulcrum. Furthermore, the base of the support rod 73 is rotatably supported by a fulcrum shaft 74 at the front portion of the transport frame 54, and a sliding body 75 provided at the rear end of the weed plate support frame 72 is externally attached to the support rod 73. It is fitted. The sliding body 75 is biased by a spring provided at the lower portion of the support rod 73, and the downward rotation of the weed board 41 is restricted.

  Further, a cutting drive shaft 67 is pivotally supported on one side of the gear cases 51 and 51 in parallel with the transport drive shaft 49, and a rear end portion of the drive case 68 is supported on the cutting drive shaft 67. The front end portion of the front end extends downward and forward. A cutting blade shaft 69 is rotatably supported on the top surface of the tip of the drive case 68 so as to protrude forward and upward, and the cutting blade 44 is fixed to the cutting blade shaft 69. The cutting blade 44 is disposed so as to incline forward and downward below the front portion of the conveying device 42 so as to obtain a driving force from the cutting drive shaft 67 via the power transmission mechanism in the driving case 68 and rotate. It is configured.

  In this way, when the cereals guided by the weeding board 41 reach the tip of the conveying device 42, the cutting units 40, 40 have protrusions 56a, 56a,... Attached to the left and right conveying belts 56. Is taken back by, is transported along the transport path of the transport device 42, and is cut by the cutting blade 44 in the middle thereof, and the cereal is further transported rearward from the rear end of the transport device 42. It is configured to be conveyed to a lateral feed auger 32 in a platform 31 disposed behind the apparatus 42.

  In each reaping unit 40, one end of an L-shaped arm 80 is supported by a fulcrum shaft 81 so as to be rotatable in the vertical direction on the front side of the conveyance frame 54 on one side of the conveyance device 42. The gauge wheel 43 is rotatably supported at the other end of the arm 80. A support frame 82 is provided at the front and rear center of the transport frame 54 so as to protrude to the left and right sides, and a bracket 83 is provided on the support frame 82 so as to protrude upward. A cylinder 84 is interposed between the central portion of the arm 80 and the bracket 83, and the arm 80 is rotated about the fulcrum shaft 81 by the expansion and contraction of the cylinder 84, so that the vertical position of the gauge wheel 43 is changed. Adjustable.

  When the gauge wheel 43 rolls up and down on the ground between the ridges, the conveyance frame 54 is rotated in the vertical direction with the conveyance drive shaft 49 as a fulcrum, so At the time of work, the weeding board 41 of the cutting unit 40, the conveying device 42, and the cutting blade 44 are moved up and down by the gauge wheel 43 following the height of the ground between the reed and the reed, and the ground height is kept constant. It is comprised so that.

  Further, a base portion of the rod 86 is pivotally supported on one side of the support portions 47 and 47, and a sliding body 87 is externally fitted in the middle portion of the rod 86, and a pin 88 protruding from the sliding body 87 is conveyed. It is pivotally connected to the rear part of the frame 54. Then, the sliding body 87 is urged by a spring 89 provided at the tip of the rod 86, and the front portion of the transport frame 54 is rotated upward with the transport drive shaft 49 as a fulcrum, so that the ground load of the gauge wheel 43 is increased. Has been reduced. In this way, the gauge wheel 43 is configured to react sensitively to the unevenness of the ground contact surface, and the follow-up performance of the cutting unit 40 to the ground is improved.

  Further, the cutting unit 40 includes a regulating member 90 provided at a front end portion of the mounting frame 46 so that the regulating member 90 is provided so as to protrude downward on the support frame 82 when the transport frame 54 rotates downward. It is comprised so that rotation to the downward direction may be controlled by contact | abutting to the receiving part 46a.

  Further, as shown in FIGS. 3 and 4, a lock member 100 is provided on the front side of the cutting unit 40, and a locking mechanism for fixing the cutting unit 40 is provided. That is, the lock member 100 is arranged in a range that can be reached when the operator is positioned at the front portion of the cutting unit 40 so that an operation for lifting and fixing can be easily performed. The lock member 100 is formed in a rod shape, and a base portion (front upper portion) thereof is rotatably supported by a fulcrum shaft 74 that pivotally supports the support rod 73 on the front portion of the conveyance frame 54, while extending backward. An engaging portion 100a having a U-shape in side view is formed at the tip. A receiving member 101 of the lock member 100 is provided so as to protrude downward on a support frame 82 provided in the middle of the front and rear of the transport frame 54. The receiving member 101 is formed in a hook shape, and the upper portion is pivotally supported. Thus, the front end side (rear part) of the lock member 100 can be locked to the receiving member 101 in a state where the receiving member 101 is rotated and the lock member 100 is lifted. In other words, the lock member 100 and the receiving member 101 are disposed in front of the conveying drive shaft 49 that is the vertical rotation fulcrum of the cutting unit 40, and the lock member 100 is disposed further forward and upward than the receiving member 101. Yes.

  Further, a receiving member 102 of a pin-shaped lock member 100 is provided at the front end of the mounting frame 46 disposed below the transport frame 54, and the engaging portion 100 a of the lock member 100 can be engaged with the receiving member 102. Has been. Here, the receiving member 102 and the lock member 100 are arranged so that their positions in the left-right direction are substantially coincident with each other. In this state, the lock member 100 is pivoted downward with the fulcrum shaft 74 as a fulcrum so that the engaging portion 100a can be engaged with the receiving member 102 of the mounting frame 46.

  In such a configuration, when the cutting operation is performed, as shown in FIG. 3, the lock member 100 is rotated in a state where the cutting unit 40 is rotated downward until it is regulated by the regulating member 90 as described above. The front end is locked to the receiving member 101 on the transport frame 54 side, and is fixed in a state of being disposed directly below the transport frame 54. That is, the lock member 100 is held at the release position. In this way, the lock member 100 is disposed so as not to protrude into the transport path of the cereals that are transported by the transport device 42, and the cereals are prevented from being caught on the lock member 100.

  Further, when it is necessary to fix the cutting unit 40 in a lifted state so that the cutting blade 44 or the like does not hurt when the combine is transported, the cutting unit 40 has a predetermined height as shown in FIG. Then, the lock member 100 is rotated and the engaging portion 100a is engaged with the receiving member 102 on the mounting frame 46 side. Thus, the lock member 100 is interposed between the transport frame 54 and the attachment frame 46, and the cutting unit 40 is fixed in a state of being rotated upward.

  That is, as a specific operation, when the mowing unit 40 is fixed in a lifted state, the lock member 100 is detached from the receiving member 101 on the conveyance frame 54 side and rotated downward to come into contact with the receiving member 102. To do. Then, the cutting unit 40 is rotated upward from the state where it is rotated downward to the position regulated by the regulating member 90. By doing so, the engaging portion 100 a of the lock member 100 is engaged with the receiving member 102 on the attachment frame 46 side, and the lock member 100 is stretched between the cutting unit 40 and the attachment frame 46. The upper plate of the receiving member 102 can be easily engaged by making it longer than the lower side. If the distance from the front end of the reaping unit 40 to the lock member 100 is set within a range that can be reached by the operator, the lock member 100 can be easily operated even if it cannot be engaged well. Therefore, the cutting unit 40 can be easily fixed by a simple operation of lifting the cutting unit 40 in this way. On the other hand, when releasing the lock, the cutting unit 40 is slightly lifted from the locked state, and the lock member 100 is rotated upward, whereby the engagement member 100a of the lock member 100 and the receiving member on the mounting frame 46 side. The engagement with the frame 102 can be released, and the lock member 100 is further rotated upward, so that the tip end side can be locked to the receiving member 101 provided on the transport frame 54. Then, the cutting unit 40 can be easily released by a simple operation of rotating the cutting unit 40 downward to the position regulated by the regulating member 90.

  Further, as described above, when fixing the cutting unit 40 to the state where the cutting unit 40 is rotated upward with respect to the mounting frame 46, the operator needs to operate the locking member 100 while lifting the cutting unit 40. Unlike the conventional case provided on the rear side of the cutting unit 40, it is provided on the front side of the front conveyance frame of the cutting unit, so that the lock member 100 can be easily operated, and the fixing operation of the cutting unit 40 can be easily performed by one person. It can be carried out.

  Furthermore, since the lock member 100 is configured to be supported by the fulcrum shaft 74 that supports the weed plate 41 of the mowing unit 40 to the transport frame 54, the number of parts increases compared to the conventional configuration, and the lock member 100 is The reaping unit 40 can be provided with a simple structure.

  Moreover, the lock mechanism which fixes the cutting unit 40 can also be comprised as follows.

  As shown in FIGS. 5 and 6, a lock member 120 is provided on the front side of the cutting unit 40, and a locking mechanism for fixing the cutting unit 40 is provided. The lock member 120 is formed in a rod shape, and a base portion of the lock member 120 is rotatably supported by a fulcrum shaft 74 that pivotally supports the support rod 73 on the front portion of the transport frame 54, while a J-shaped engagement portion is formed on the tip portion. 120a is formed. A receiving member 121 of the lock member 120 is provided in the middle part of the conveyance frame 54 so as to protrude downward from the support frame 82, and the engaging part 120 a of the lock member 120 can be locked to the receiving member 121. It is said that.

  Further, a receiving member 122 of a pin-shaped lock member 120 is provided at the front end of the mounting frame 46 disposed below the transport frame 54, and the engaging portion 120 a of the lock member 120 can be engaged with the receiving member 122. Has been. Here, the entire length of the lock member 120 is such that the cutting unit 40 rotates downward with the conveying drive shaft 49 as a fulcrum until it is regulated by the regulating member 90, and the lock member 120 pivots around the fulcrum shaft 74. Thus, the engagement portion 120 a is set to a length that allows the engagement portion 120 a to be engaged with the receiving member 122 of the attachment frame 46.

  Further, in this embodiment, the lock member 120 is configured to be extendable and contractible so that the entire length thereof can be adjusted. For example, the lock member 120 is divided at the center, and a turnbuckle 125 is provided therebetween. A screw portion provided on the base side of the lock member 120 is screwed into one side of the cylindrical turnbuckle 125, while a screw provided on the tip side of the lock member 120 is provided on the other side of the turnbuckle 125. The positions of the screw portions on both sides of the lock member 120 in the turnbuckle 125 are adjusted by the rotation of the turnbuckle 125 so that the lock member 120 can be expanded and contracted. Thus, the entire length of the lock member 120 can be easily adjusted.

  In such a configuration, when a cutting operation is performed, the lock member 120 is rotated as shown in FIG. 5 in a state where the cutting unit is rotated downward until it is regulated by the regulating member as described above. The engaging portion 120a is locked to the receiving member 121 on the conveyance frame 54 side, and is fixed in a state of being disposed immediately below the conveyance frame 54. In this way, the lock member 120 is disposed so as not to protrude into the transport path of the cereals that are transported by the transport device 42, and the cereals are prevented from being caught on the lock member 120.

  Further, when it is necessary to fix the harvesting unit 40 when transporting the combine, as shown in FIG. 6, the harvesting unit 40 is rotated downward until it is regulated by the regulating member 90. The lock member 120 is rotated, and the engaging portion 120a is engaged with the receiving member 122 on the mounting frame 46 side. In order to maintain this state, the turnbuckle 125 is rotated and tightened so that the entire length of the lock member 120 is shortened. In this way, the lock member 120 is interposed between the conveyance frame 54 and the attachment frame 46, and the cutting unit 40 is fixed in a state of being rotated downward.

  That is, the locking member 120 is removed from the receiving member 121 on the conveyance side while the cutting unit 40 is rotated downward until it is regulated by the regulating member 90 without being pivoted upward. The reaping unit 40 can be easily fixed by a simple operation of merely engaging the joint portion 120a with the receiving member 122 on the mounting frame 46 side. On the contrary, in a state where the cutting unit 40 is fixed by the lock member 120, the lock member 120 is rotated upward, and the engagement between the engaging portion 120a of the lock member 120 and the receiving member 102 on the mounting frame 46 side is released. Thus, the fixed state of the cutting unit 40 can be released by a simple operation of locking the engaging portion 120a to the receiving member 121 on the transport frame 54 side.

  Thus, the operator can change the fixed state of the cutting unit 40 by operating only the lock member 120 without lifting the cutting unit 40. Therefore, it is possible to reduce work effort and improve workability.

  Moreover, when the cutting unit 40 is fixed as described above, the cutting unit 40 can be moved to an arbitrary height and fixed by adjusting the overall length of the lock member 120 with the turnbuckle 125. Therefore, the certainty of the fixed state of the cutting unit 40 can be increased.

The side view of the combine equipped with the cutting device which concerns on one Example of this invention. FIG. The side view which showed the structure of the cutting unit. The side view which shows the state which fixed the cutting unit. The side view which showed the structure of the cutting unit of another Example. The side view which shows the state which fixed the cutting unit of another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 5 Cutting device 40 Cutting unit 41 Weeding board 42 Conveying device 44 Cutting blade 46 Mounting frame 54 Conveying frame 74 Supporting shaft 100 Lock member 101 Receiving member 102 Receiving member 120 Locking member 121 Receiving member 122 Receiving member

Claims (5)

  A mowing unit comprising a pair of left and right weed plates, a conveying device disposed behind the weed plate, and a cutting blade disposed below the conveying device is rotated in the vertical direction with respect to the mounting frame. In the harvesting device of the combine that is supported in a possible manner, a lock member for fixing the harvesting unit in a state of rotating upward is provided at the front portion of the harvesting unit, and a receiving member for the lock member is provided on the mounting frame. Combine harvester.   A mowing unit comprising a pair of left and right weed plates, a conveying device disposed behind the weed plate, and a cutting blade disposed below the conveying device is rotated in the vertical direction with respect to the mounting frame. In the harvesting device of the combine that is supported in a possible manner, a locking member for fixing the cutting unit in a state of rotating downward is provided at the front portion of the cutting unit, and a receiving member for the locking member is provided on the mounting frame. Combine harvester.   The combine mowing apparatus according to claim 1 or 2, wherein the lock member is supported on the transport frame so as to be rotatable in a vertical direction, and a receiving member for the lock member is provided on the transport frame.   The combine harvester according to any one of claims 1 to 3, wherein the lock member is configured to be extendable and contractible. The combine mowing apparatus according to any one of claims 1 to 4, wherein the lock member is supported by a fulcrum shaft that supports a weed plate on a conveyance frame.

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