JP2008271822A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester that eliminates anxiety regarding culm spill, when reaped grain culms are placed on the surface of a conveying start end side in a feed chain by a manual threshing operation. <P>SOLUTION: A feed guide body 112, facing the surface of the conveying start end side in the feed chain 6, is constituted being capable of jumping up and turning, to separate from the feed chain 6. A vertical turning type second intermediate conveying mechanism 55, arranged in between a vertical conveying mechanism and the feed chain 6, is turnable in the vertical directions on a major axis bolt 134, at a conveying rear side as a fulcrum and is interlocked with the jumping up and turning of the feed guide body 112 so as to turn upward until the upper-limit turning position that is inclined upward, slanted toward the front. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine that continuously cuts threshed cereal grains in a field.

  Conventionally, in this type of combine, from the front of the traveling machine body equipped with a threshing device with a feed chain, from a grain raising device, a cutting blade device, a stock transport mechanism, a vertical transport mechanism, an auxiliary transport mechanism, etc. The cutting pre-processing device is mounted so as to be adjustable up and down by an up-and-down actuator.

  Of the devices and mechanisms of the pre-harvest processing device, the vertical transport mechanism is for transporting the stock side of the harvested cereal rice cake sent from the stock source transport mechanism to the feed chain obliquely rearward and upward. The auxiliary conveyance mechanism is for relaying (assisting conveyance) the conveyance of the harvested grain culm between the vertical conveyance mechanism and the feed chain.

An example of a combine having such a configuration is disclosed in Patent Document 1. Patent Document 1 relates to a previous application by the applicant of the present application. In the combine of Patent Document 1, as the auxiliary transport mechanism, a horizontally-rotating first relay transport mechanism and a vertically-rotating second relay transport mechanism are used. By adopting two, the inheritance efficiency of the harvested cereal meal to the feed chain is improved.
Japanese Patent Laid-Open No. 10-127141

  By the way, this type of combine is not only normal (while running in the field), but also threshing with a handling cylinder by placing the harvested cereals harvested manually by the operator on the feed start side of the feed chain. It is also used for handling work.

  In this case, since a supply guide body is provided on the upper surface of the feed chain on the feed start end side so as to clamp the stock side of the harvested cereal rice cake in cooperation with the feed chain, The guide body is swung up and turned away from the feed chain, and then the harvested cereal meal is placed on the feed start end side of the feed chain.

  However, in the conventional configuration, the upper surface on the feed start end side of the feed chain is inclined obliquely forward and downward because of the layout with the vertical conveyance mechanism and the auxiliary conveyance mechanism. In addition, there is concern about the possibility of spilling depending on how it is placed.

  Therefore, the present invention focuses on the existence of the auxiliary transport mechanism and makes it a technical problem to provide a combine that solves the above-mentioned concerns by using this mechanism.

  In order to solve this technical problem, the invention of claim 1 is directed to a traveling machine body equipped with a threshing device with a feed chain, a pre-cutting treatment device attached to a front portion of the traveling machine body, and the feed chain. A feed guide body facing the upper surface on the feed start end side, and between the feed chain and a vertical transport mechanism that transports the stock side of the harvested cereal rice bowl toward the feed chain in the pre-harvest processing device Is a combine in which a vertical rotation type auxiliary conveyance mechanism for relaying conveyance on the stock market side is arranged, and the supply guide body is configured to be able to be flipped up and moved away from the feed chain. The auxiliary transport mechanism is capable of rotating up and down with the feed rear side as a fulcrum, and up to an upper limit rotation posture inclined forward and obliquely upward in conjunction with the flip-up rotation of the supply guide body. Is that is configured to orientation rotated.

  According to a second aspect of the present invention, there is provided a combine according to the first aspect of the present invention, in accordance with attitude detection means for detecting whether or not the supply guide body is flipped up and detected by the attitude detection means. An actuator for rotating the auxiliary transport mechanism upward to the upper limit rotation posture.

  According to a third aspect of the present invention, in the combine according to the first or second aspect, the auxiliary transfer mechanism is configured to transmit power from the feed chain via a sprocket type transmission means associated therewith. That is.

  According to the present invention, the supply guide body facing the upper surface on the feed start end side of the feed chain is configured to be able to be flipped up so as to be separated from the feed chain, and is arranged between the vertical conveyance mechanism and the feed chain. The vertical rotation type auxiliary transport mechanism can be rotated up and down with the feeding rear side as a fulcrum, and up to an upper limit rotation posture inclined forward and obliquely upward in conjunction with the flip-up rotation of the supply guide body It is configured to rotate upward.

  When such a configuration is adopted, when performing a hand handling operation, the auxiliary transport mechanism functions as a grain acceptor that rises obliquely forward and upward from the feed start end side of the feed chain inclined obliquely forward and downward. This makes it easy to place the harvested cereal meal on the feed start end side of the feed chain. For this reason, at the time of a handling operation, the cutting grain can be easily and smoothly fed to the threshing device, and the workability of the handling operation is improved.

  DESCRIPTION OF EMBODIMENTS Embodiments embodying the present invention will be described below based on the drawings (FIGS. 1 to 13). 1 is a side view of the combine, FIG. 2 is a plan view of the combine, FIG. 3 is a schematic side view of the pre-cutting processing device, FIG. 4 is a schematic plan view of the pre-cutting processing device, and FIG. 5 is a skeleton diagram of the power transmission system. 6 is a plan view of the vertical conveying device, FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6, FIG. 8 is a schematic side view showing the relationship between the feed chain and the supply guide body, and FIG. 10 is an enlarged side view of the feed start end side in FIG. 10, FIG. 10 is an enlarged plan view of the feed start end side in the feed chain and the auxiliary transport apparatus, FIG. 11 is an enlarged cross-sectional side view taken along line XI-XI in FIG. FIG. 13 is a functional block diagram of the controller.

(1). First, the schematic structure of the combine will be described with reference to FIGS. 1 and 2.

  The combine for four-row cutting in the embodiment includes a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 and 2. At the front part of the traveling machine body 1, a pre-cutting processing device 3 that takes in planted cereal pods (uncut cereal potatoes) in the field is mounted by a single-acting hydraulic cylinder 4 so as to be adjustable up and down.

  A threshing device 5 with a feed chain 6 and a glen tank 7 for storing grain after threshing are mounted on the traveling machine body 1 side by side. In this case, the threshing device 5 is disposed on the left side in the traveling direction of the traveling machine body 1, and the Glen tank 7 is disposed on the right side in the traveling direction of the traveling machine body 1. A discharge auger 8 is provided at the rear of the traveling machine body 1 so as to be able to turn. The grain in the Glen tank 7 is carried out from the tip throat throw hole of the discharge auger 8 to, for example, a truck bed or a container.

  A control unit 9 is provided between the pre-cutting processing device 3 and the Glen tank 7. A steering handle 10 for changing the traveling (turning) direction and turning speed of the traveling machine body 1, a control seat 11 on which an operator is seated, and the like are disposed in the control unit 9. A side column 12 disposed on one side of the control seat 11 is used for a power transmission operation to the main transmission lever 13 and the sub transmission lever 14 for performing a speed change operation of the traveling machine body 1 and the pre-cutting processing device 3. A mowing clutch lever 15 and a threshing clutch lever 16 for power disconnection operation to the threshing device 6 are provided so as to be tiltable forward and backward.

  An engine 17 as a power source is disposed below the control unit 9. A transmission case 18 is disposed in front of the engine 17 for appropriately shifting the power from the engine 17 and transmitting it to the left and right traveling crawlers 2. A diesel engine is employed as the engine 17 of the embodiment.

  The pre-harvest processing device 3 includes a clipper-type cutting blade device 19, a culm pulling device 20 for four strips, a culm conveying device 21, and a weed body 22. The cutting blade device 19 is disposed below the cutting frame 44 constituting the framework of the pre-cutting processing device 3. The grain raising apparatus 20 is disposed above the cutting frame 44. The corn straw transporting device 21 is disposed between the corn straw pulling device 20 and the feed start end of the feed chain 6. The weed body 22 is provided in front of the lower part of the grain raising device 20. The traveling machine 1 continuously cuts the uncut grain culm in the field by driving the pre-cutting processing device 3 while driving the left and right traveling crawlers 2 by the engine 17 and moving in the field.

  The threshing device 5 includes a handling cylinder 23 for threshing the harvested cereal, a swing sorting mechanism 24 and a wind sorting mechanism 25 arranged below the handling cylinder 23, and a threshing taken out from the rear part of the handling cylinder 23. And a dust-feed port processing cylinder 26 for reprocessing. The handling cylinder 23 is arranged in the handling chamber of the threshing device 5. The swing sorting mechanism 24 is for swinging and sorting the cereals threshed by the handling cylinder 23, and the wind sorting mechanism 25 is for wind sorting the threshing.

  The stocker side of the harvested cereal meal sent from the pre-harvest processing device 3 is inherited by the feed chain 6. Then, the tip side of the harvested cereal culm is carried into the threshing device 5 and threshed by the handling cylinder 23. In addition, the rotating shaft 74 (refer FIG. 5) of the handling cylinder 23 is extended along the feed direction (the advancing direction of the traveling body 1) of the harvested cereal meal by the feed chain 6.

  In the lower part of the threshing device 5, there are a first receiving bowl 27 where most of the grains selected from the two sorting mechanisms 24, 25 are collected, a grain with a branch stem, a grain of ears, etc. There is provided a second receiving bowl 28 where second things gather. The two receiving rods 27 and 28 of the embodiment are horizontally provided above the rear portion of the traveling crawler 2 in a side view in order of the first receiving rod 27 and the second receiving rod 28 from the front side in the traveling direction of the traveling machine body 1.

  The first thing such as the fine grains collected in the first receiving bowl 27 through the sorting by both sorting mechanisms 24 and 25 is the first conveyor 29 in the first receiving bowl 27 and the cereal in the milling cylinder 31. It is sent to the Glen tank 7 via the conveyor 32 (see FIG. 5).

  The second item such as grain with branch stems is collected in the second receiving rod 28 behind the first receiving rod 27, and from here the second conveyor 30 in the second receiving rod 28 and the reducing conveyor in the reducing cylinder 33. 34 (see FIG. 5) and sent to the second processing cylinder 35. And after the second thing is rethreshed in the second treatment cylinder 35, it is returned to the threshing apparatus 5 and reselected. The sawdust is sucked into the dust exhaust fan 36 and discharged out of the machine from a discharge port (not shown) provided in the rear part of the threshing device 5.

  A waste chain 37 is disposed on the rear side (feed end side) of the feed chain 6. The waste (granulated soot) inherited from the rear end of the feed chain 6 to the waste chain 37 is discharged to the rear of the traveling machine body 1 in a long state, or the waste cutter 38 at the rear of the threshing device 5. After being cut to a short length as appropriate at, it is discharged to the rear of the traveling machine body 1.

(2). Next, the pre-cutting processing apparatus 3 and the surrounding structure will be described with reference to FIGS. 3 and 4.

  The pre-cutting processing device 3 is configured to be vertically rotatable around a horizontally long cutting input pipe 42 that is pivotally supported by a cutting stand 41 in front of the threshing device 5. A longitudinal transmission pipe 43 that extends obliquely downward and forward is attached to the midway portion of the cutting input pipe 42. A midway portion of the longitudinal transmission pipe 43 and the front end portion of the traveling machine body 1 are connected via a single-acting hydraulic cylinder 4.

  A horizontally long horizontal transmission pipe 44 fixed to the lower end portion of the vertical transmission pipe 43 is provided with a plurality of cutting frames 45 that protrude in the forward direction and are arranged at appropriate intervals in the horizontal direction. A clipper-type cutting blade device 19 is provided below the cutting frame 45. A weeding body 22 projects from the tip of each cutting frame 44. The horizontal transmission pipe 44 is provided with a plurality of support pipes 46 extending diagonally forward and upward. Each support pipe 46 supports the culm raising device 20 for causing the planted culm in the field.

  As shown in FIG. 3, the grain raising device 20 is disposed in a vertically long raising case 47 having an erecting tine for raising an uncut grained rice cake taken in via the weed body 22, and in the lower rear part of each raising case 47. A star wheel 48 and a scraping belt 49 are provided. The star wheel 48 and the scraping belt 49 are for scraping the stock side of the uncut grain raised by the pulling tine of the pulling case 47 corresponding to these sets backward. The stock source side of the uncut grain slag scraped by the star wheel 48 and the scraping belt 49 is cut (cut) by the cutting blade device 19.

  The cereal carrying device 21 disposed between the cereal raising device 20 and the feed start end of the feed chain 6 includes a lower right carrying mechanism 50, a lower left carrying mechanism 51, an upper carrying mechanism 52, a vertical carrying mechanism 53, and a horizontal carrying mechanism. A rotating first relay transport mechanism 54 and a vertical second relay transport mechanism 55 are provided.

  The lower right transport mechanism 50 is of a chain type that transports the right two reaped cereal grains diagonally to the left rear. The lower left transport mechanism 51 is of a chain type that transports the left two reaped cereal grains diagonally to the right and joins the stock side to the vicinity of the feed end portion of the lower right transport mechanism 50. The upper transport mechanism 52 is of a tine system that transports the heads of the four chopped cereal rice cakes obliquely to the left and back.

  The vertical conveyance mechanism 53 is of a chain type that conveys the stock side of the four reaped cereal grains that merged in the vicinity of the feed end portion of the lower right conveyance mechanism 50 toward the feed chain 6 diagonally upward. . The first relay transport mechanism 54 and the second relay transport mechanism 55 are of a chain system that relays the transport of the harvested cereal culm between the vertical transport mechanism 53 and the feed chain 6. The second relay transport mechanism 55 corresponds to the auxiliary transport mechanism described in the claims.

  The vertical conveying mechanism 53 supports the feed start end side in the longitudinal middle portion of the vertical transmission pipe 43 via the transmission case 58. The vertical transport mechanism 53 is configured to be rotatable up and down around the transmission case 58 so that the feed end side comes into contact with and separates from the feed chain 6 by driving of a vertical transport actuator (not shown) (see FIG. 4). By such vertical rotation of the vertical transport mechanism 53, the handling depth position of the harvested cereal meal relative to the handling cylinder 23 is adjusted.

  The upper transport mechanism 52, the first relay transport mechanism 54, and the vertical transport mechanism 53 are arranged side by side in this order in a side view. More specifically, the first relay transport mechanism 54 is sandwiched from above and below by the feed end portion of the upper transport mechanism 52 and the feed end portion of the vertical transport mechanism 53.

  The second relay transport mechanism 55 is located between the first relay transport mechanism 54 and the feed start end portion of the feed chain 6 in the plan view of FIG. 4, and the feed rear side of the feed chain 6 is in the side view of FIG. 3. It overlaps (wraps) the feed start end. As will be described in detail later, the second relay transport mechanism 55 is configured to be capable of changing its attitude in the vertical direction around the feed rear side as a fulcrum by driving an electric motor 143 (see FIGS. 11 to 13) as an actuator. (See FIGS. 8, 9 and 11).

  A vertical conveyance guide body 56 as a clamping guide member is disposed at a position facing the feed surface side of the vertical conveyance mechanism 53. The vertical conveyance guide body 56 is for clamping the stock base side of the harvested cereal grains for the four strips together with the vertical conveyance mechanism 53. At the place facing the feed surface side of the first relay transport mechanism 54, the relay that clamps the stock base side (more specifically, the middle part near the stock base) of the harvested cereal grains for the four strips together with the first relay transport mechanism 53 A guide body 57 is disposed.

  The stock side of the four sown cereal grains that have been nipped and conveyed by the vertical conveyance mechanism 53 and the vertical conveyance guide body 56 are fed via the first and second relay conveyance mechanisms 54 and 55. It is inherited by the feed start end of the chain 6. And the tip side of these harvested cereals is threshed by the handling drum 23 in the handling chamber of the threshing device 5.

(3). Next, the power transmission system of the combine will be described with reference to FIG.

  One of the power from the engine 17 is branched and transmitted in two directions, the pre-cutting processing device 3 and the threshing device 5. Other power from the engine 17 is transmitted to the discharge auger 8. The branching power from the engine 17 to the pre-cutting processing device 3 is once transmitted to the HST input shaft 62 of the hydraulic pump hydraulic motor type (HST type) continuously variable transmission in the mission case 18 via the cutting clutch 61. Shifted. This shift output is transmitted from the cutting PTO shaft 63 projecting from the transmission case 18 to the cutting input shaft 64 in the cutting input pipe 42 via the pulley and the belt transmission system, and from the cutting input shaft 64 to the cutting pre-processing device. Power is transmitted to each of the three devices 19 to 21.

  For example, part of the power transmitted to the cutting input shaft 64 is transmitted to the upper transport mechanism 52 and the first relay transport mechanism 54 via the upper transmission mechanism 65 connected to the midway portion of the cutting input shaft 64. . Further, a part of the power transmitted to the vertical transmission shaft 66 in the vertical transmission pipe 43 is transmitted to the vertical transport mechanism 53 via a lower transmission mechanism 67 connected to the middle portion of the vertical transmission shaft 66. The vertical conveyance drive shaft 68, which is a constituent element of the lower transmission mechanism 67, protrudes upward from a transmission case 58 attached to the longitudinal middle portion of the vertical transmission pipe 43, and is longitudinally driven by the rotational power of the vertical conveyance drive shaft 68. The transport mechanism 53 is configured to be driven.

  On the other hand, the branching power from the engine 17 toward the threshing device 5 is transmitted to the threshing input shaft 72 via the threshing clutch 71. A part of the power transmitted to the threshing input shaft 72 is transmitted to the rotating shaft 75 of the dust feeding port processing cylinder 26, the rotating shaft 74 of the handling cylinder 23, and the waste chain 37 via the threshing drive mechanism 73. The

  In addition, from the threshing input shaft 72, through the pulley and the belt transmission system, the Kara fan shaft 76 of the wind sorting mechanism 25, the first conveyor 29 and the cereal conveyor 32, the second conveyor 30 and the reduction conveyor 34, and the second processing. It is transmitted to the barrel 35, the swing shaft 77 of the swing sorting mechanism 24, the dust discharge shaft 78 of the dust exhaust fan 36, and the waste cutter 38.

  The branching power passing through the dust removal shaft 78 is transmitted to the feed chain 6 through the FC clutch 79 and the feed chain shaft 80, and from the feed chain 6, a sprocket type transmission means 81 arranged on the feed start end side. Then, power is transmitted to the second relay transport mechanism 55.

  The power from the threshing input shaft 72 can also be transmitted to the cutting input shaft 64 via the pouring clutch 82. That is, by directly transmitting the power from the engine 17 to the pre-cutting processing device 3 without going through the mission case 18, the pre-cutting processing device 3 is forcibly driven at a constant high speed regardless of whether the vehicle speed is fast or slow. It is the composition which can be made to do.

  The power from the engine 17 toward the discharge auger 8 is transmitted through the Glen input gear mechanism 83 and the power interrupting auger clutch 84 to the bottom conveyor 85 in the Glen tank 7 and the vertical conveyor 86 in the vertical auger cylinder in the discharge auger 8. Then, the power is transmitted to the discharge conveyor 88 in the horizontal auger cylinder of the discharge auger 8 via the transfer screw 87.

(4). Detailed Structure of Vertical Transport Mechanism and Vertical Transport Guide Body Next, the detailed structure of the vertical transport mechanism 53 and the vertical transport guide body 56 will be described with reference to FIGS. 6 and 7.

  As shown in FIGS. 6 and 7, the vertical transfer chain 53 includes a support arm 91 fastened to the flange of the transmission case 58 in a cantilever manner and a protruding end portion of the vertical transfer drive shaft 68 protruding upward from the transmission case 58. And a driven roller 93 rotatably supported at the tip of the support arm 91, and an endless chain 94 wound around the driving sprocket 92 and the driven roller 93. The endless chain 94 of the embodiment is configured to circulate counterclockwise in a plan view of FIG.

  A substantially U-shaped mounting holder 95 suspended in the middle of the support arm 91 near the driven roller 93 is attached to the base end portion of the curved pipe 96 formed in a substantially U shape by welding or the like. It is fixed. The distal end portion of the curved pipe 96 is located at a position facing the conveyance surface side of the vertical conveyance mechanism 53 (endless chain 94), and a vertical conveyance guide body 56 as a clamping guide member is attached to the distal end portion. Yes.

  The vertical conveyance guide body 56 has a guide rod 97 facing the feed surface side of the endless chain 94 and a downward opening substantially U-shaped that supports the guide rod 97 so as to be able to move toward and away from the endless chain 94. A guide holder 98 is provided. The guide holder 98 is bolted to a receiving bracket 99 fixed to the upper end of the curved pipe by welding in a state where it is covered from above.

  The guide rod 97 has a guide arm 100 facing the feed surface of the endless chain 94, and a pair of slide arms 101 pivotally attached to a middle portion of the guide arm 100 by a vertically-supporting pivot pin 102. It is comprised by. The guide arm 100 is formed in the shape of a substantially side-opening substantially saddle that extends back and forth along the feed surface side of the endless chain 94.

  The pair of left and right side plates 103a and 103b in the guide holder 98 are passed through the pair of slide arms 101 in the guide rod 97 so as to be able to move to and away from the endless chain 94. A flange plate 104 for preventing the slide arm 101 that slides in the axial direction integrally with the slide arm 101 is fixed to a portion in the guide holder 98 in each slide arm 101. A compression torsion spring 105 is fitted between the flange plate 104 and the side plate 103 b far from the endless chain 94 in the outer periphery of each slide arm 101. In this case, the compression torsion spring 105 is stretched between the flange plate 104 and the side plate 103 b of the guide holder 98, so that the pair of slide arms 101, and thus the guide arm 100, approaches the feed surface side of the endless chain 94. It is energized.

  On the outer surface of the side plate 103b far from the endless chain 94, an arm position detection sensor 106 such as a linear encoder, which is an example of a conveyance amount detection means, is provided in association with at least one slide arm 101. The arm position detection sensor 106 detects the moving position of the slide arm 101 (guide rod 97) with respect to the guide holder 98, and consequently the amount of harvested potato grains (multiple) that is nipped and conveyed by the vertical conveyance mechanism 53 and the vertical conveyance guide body 56. It is configured as follows. The arm position detection sensor 106 is electrically connected to a controller 160 (see FIG. 13) as control means.

(5). Next, the structure around the feed start end of the feed chain 6 will be described with reference mainly to FIG.

  A chain rail 107 extending forward and backward along the inner surface side of the feed chain 6 is fixed to one side portion (left side portion in the embodiment) of the threshing device 5. An FC sprocket 108 that can be rotated by power transmission from the feed chain shaft 80 is pivotally supported at the rear portion of the chain rail 107 (see FIG. 5). An FC driven roller 109 is pivotally supported at the front end of the chain rail 107 so as to be rotatable about a horizontal axis. The feed chain 6 is wound around an FC sprocket 108 and an FC driven roller 109, and is configured to circulate clockwise in a side view of FIGS.

  In the threshing device 5, the longitudinally long rectangular pipe 110 disposed above the feed chain 6 includes a clamping rod 111 that holds the stock side of the harvested cereal rice cake together with the feed chain 6 against the feed chain 6. It is suspended so as to be movable up and down by an elastic biasing force (not shown). The stocker side of the harvested cereal meal sent from the pre-harvest processing device 3 is sandwiched between the feed surface side of the feed chain 6 and the sandwiching basket 111 and conveyed toward the rear.

  As shown in detail in FIG. 8, a bowl-shaped supply guide body 112 is disposed above the front end of the feed chain 6 (above the feed start end side). The supply guide body 112 is for holding the stock side of the harvested cereal rice cake in cooperation with the feed chain 6 when inheriting the harvested cereal meal from the second relay transport mechanism 55.

  The rear end portion of the supply guide body 112 is pivotally supported by a bracket plate 114 provided at the front end of the square pipe 110 via a lateral guide support shaft 113 so as to be vertically rotatable. That is, the supply guide body 112 is moved upward and downward from the feed surface by the action posture (see the solid line state in FIG. 8) that is in contact with or close to the feed surface of the feed chain 6 by the vertical rotation with the guide support shaft 113 as a fulcrum. The posture can be changed to a non-working posture (refer to the one-dot chain line state in FIG. 8) that is far away. In other words, the supply guide body 112 is configured to be able to flip up and turn away from the feed chain 6 with the guide support shaft 113 as a fulcrum. A grip member 115 for manually rotating the supply guide body 112 is attached to the front portion of the supply guide body 112.

  A tension spring 118 is mounted between the relay link 116 pivotally attached to the rear side of the supply guide body 112 and the plate plate 117 fixed to the front portion of the square pipe 110. The tension spring 118 acts to exceed the fulcrum with respect to the posture change rotation between the acting posture and the non-working posture in the supply guide body 112.

  That is, when the supply guide body 112 in the non-operation posture is rotated downward to the operation posture, the tension spring 118 pulls and biases the supply guide body 112 in the direction of approaching the feed chain 6 over the guide support shaft 113. To do. In this case, the stopper piece 119 fixed to the rear end portion of the supply guide body 112 abuts on the bolt shaft 120 attached to the bracket plate 114 from below, so that further downward rotation of the supply guide body 112 is restricted. Then, the supply guide body 112 is held in the acting posture.

  When the supply guide body 112 in the action posture is flipped up (turned upward) to the non-action posture, the tension spring 118 pulls the supply guide body 112 away from the feed chain 6 over the guide support shaft 113. Energize. Although not shown in detail, the supply guide body 112 stops rotating upward by being in contact with the front part of the threshing device 5 and is held in a non-acting posture. That is, the front part of the threshing device 5 serves as a stopper that restricts the upward rotation of the supply guide body 112. The supply guide body 112 is set to the non-operation posture when the operator performs a handling operation. The hand handling work refers to the work of inserting the harvested grain culm S that has been cut manually by an operator or the like into the front side (feed start end side) of the feed chain 6 and threshing with the handling cylinder 23.

  The bracket plate 114 on the front end side of the square pipe 110 is attached with a posture detection switch 121 (see FIG. 13) as posture detection means for detecting whether or not the supply guide body 112 is in a non-working posture. The attitude detection switch 121 is a contact type (limit switch type) that detects whether or not the supply guide body 112 is in a non-acting attitude depending on whether or not the rear side of the supply guide body 112 or the stopper piece 119 is in contact therewith. belongs to. The posture detection switch 121 is electrically connected to a controller 160 (see FIG. 13) as control means.

(6). Next, the detailed structure of the second relay transport mechanism 55 and its periphery will be described with reference to FIGS. 8 to 12.

  The 2nd relay conveyance mechanism 55 is for relaying the conveyance by the side of the stock of a harvested cereal between the vertical conveyance mechanism 53 and the feed chain 6 with the 1st relay conveyance mechanism 54. FIG. The second relay transport mechanism 55 of the embodiment includes a bracket member 125 that is bolted to the front inner side of the chain rail 107, a sprocket-type transmission means 81, and a rotating plate body that is disposed on the inner side of the body from the bracket member 125. 126, a relay driven roller 127 pivotally supported at the tip of the rotating plate body 126, and a relay wound around a relay sprocket 132 which is a component of the relay driven roller 127 and the transmission means 81. And an endless chain 128.

  A horizontal cylindrical boss body 129 is fixed to the bracket member 125. The boss body 129 penetrates the bracket member 125 in the thickness direction. A power branch shaft 130 that is one component of the transmission means 81 is rotatably inserted into the boss body 129.

  The transmission means 81 includes the power branch shaft 130 described above, and a branch sprocket 131 and a relay sprocket 132 that rotate integrally therewith. The branch sprocket 131 and the relay sprocket 132 are arranged separately on both sides of the bracket member 125 in the plan view of FIG. The branch sprocket 131 is engaged with the inner peripheral side of the front part of the feed chain 6, and is configured to take out the driving force of the second relay transport mechanism 132 (circular driving force of the relay endless chain 128) from the feed chain 6. . Therefore, like the feed chain 6, the relay endless chain 128 of the embodiment circulates clockwise in the side view of FIGS.

  The rotating plate body 126 has a rotating boss portion 133 penetrating in the lateral direction at the base end portion (rear end portion) thereof. In the embodiment, the rotation plate body 126 is formed by screwing the male thread portion 134a of the long-axis bolt 134 inserted into the rotation boss portion 133 into the nut portion 135 protruding from the bracket plate 125 and the chain rail 107 to the inside of the machine body. The bracket plate 125 and the nut portion 135 on the chain rail 107 side are attached. The rotating boss 133 itself is rotatably fitted to the unthreaded part 134 b of the long-axis bolt 134. For this reason, the rotation plate body 126 and thus the second relay conveyance mechanism 55 can be rotated in the vertical direction around the long-axis bolt 134 located on the feed rear side. The end of the rotating boss 133 of the rotating plate body 126 on the side opposite to the bracket member 125 is linked to the posture adjusting mechanism 140 that is located on the rear side of the rotating means 81 via a link mechanism 145 described later. It is connected.

  The posture adjustment mechanism 140 rotates the screw shaft 141 extending in the front-rear direction orthogonal to the long-axis bolt 134 (the rotation axis of the rotation plate body 126), the adjustment body 142 screwed with the screw shaft, and the screw shaft 141. And an electric motor 143 as an actuator to be driven.

  In the embodiment, a pair of bracket pieces 144a and 144b are erected on the receiving plate 139 fixed to a portion of the chain rail 107 behind the rotating means 81 at an appropriate interval in the front-rear direction. Each end of the screw shaft 141 is pivotally supported by the corresponding bracket piece 144a, 144b so as to be rotatable only. An electric motor 143 is attached to the back side of the rear bracket piece 144b.

  The link mechanism 145 that links the rotating plate body 126 and the posture adjusting mechanism 140 includes an upright piece 146 fixed to the upper surface of the adjusting body 142 and the bracket member 125 of the rotating boss 133 of the rotating plate body 126. A connecting piece 136 erected on the opposite end, and a link arm 150 that connects the upright piece 146 and the connecting piece 136 are provided. The rear end portion of the link arm 150 is pivotally attached to the upright piece 146 on the adjustment body 142 side by a laterally supporting pin 147. The front end portion of the link arm 150 is pivotally attached to the connection piece 136 on the rotation plate body 126 side so as to be rotatable by a laterally-supported pivot pin 137.

  The electric motor 143 includes a rotational position detection sensor 148 such as a rotary encoder or a rotary potentiometer. The rotation position detection sensor 148 is for detecting the vertical rotation position of the second relay transport mechanism 55 (rotation plate body 126) from the rotation amount of the screw shaft 141. The electric motor 143 and the rotation position detection sensor 148 are electrically connected to a controller 160 (see FIG. 13) as control means.

  When the screw shaft 141 is rotated forward and backward by driving the electric motor 143, the adjusting body 142 slides along the screw shaft 141 (screw is fed). Then, due to the action of the link mechanism 145, the slide movement of the adjusting body 142 is converted into the rotation movement around the long axis bolt 134 of the rotation plate body 126, and the second relay transport mechanism 55 moves up and down around the long axis bolt 134. It rotates (see FIGS. 8, 9 and 11).

  On the other hand, the regulation piece 151 protruding downward from the adjustment body 142 is inserted from above into a guide groove hole 152 formed in the receiving plate 139 so as to extend along the screw shaft 141. When the regulating piece 151 of the adjusting body 142 is in contact with or close to the front and rear inner peripheral edges of the guide groove hole 152, the second relay transport mechanism 55 (the rotating plate body 126) is tilted upward and obliquely upward. (See the solid line state in FIGS. 8, 9 and 11) to the lower limit pivoting posture (see the one-dot chain line state in FIGS. 8, 9 and 11) extending substantially horizontally, around the long axis bolt 134 It can be rotated up and down. In other words, the rotation stroke of the second relay conveyance mechanism 55 (the rotation plate body 126) is restricted by the restriction piece 151 of the adjustment body 142 hitting the front and rear inner peripheral edges of the guide slot 152.

(7). Configuration of Controller Next, the configuration of the controller 160 as control means will be described with reference to FIG.

  The controller 160 as a control means mounted on the traveling machine body 1 drives the electric motor 143 based on the detection information of the arm position detection sensor 106, the posture detection switch 121, and the rotation position detection sensor 148, and performs the second relay. Control for adjusting the vertical rotation posture of the transport mechanism 55 is executed. In addition to a CPU for performing various arithmetic processes and control, a ROM for storing a control program and data, a control program and data are temporarily stored. A RAM for storing data, an input / output interface, and the like are provided, and the battery 162 is connected via a key switch 161 for applying power.

  The key switch 161 is a rotary switch that can be rotated by a predetermined key inserted into the key hole, and is not shown in detail, but is attached to a steering column located in front of the control seat 8. The key switch 161 is also connected to a starter 163 for starting the engine 17. As described above, the arm position detection sensor 106, the posture detection switch 121, the rotation position detection sensor 148, the electric motor 143, and the like are connected to the controller 160.

(8). Operation and Effect In the above configuration, when the amount of the harvested cereal culm held and transported by the vertical transport mechanism 53 and the vertical transport guide body 56 is small, the guide rod 97 of the vertical transport guide body 53 is the endless chain of the vertical transport mechanism 53. The arm position detection sensor 106 detects the movement position. The controller 160 that has acquired the detection information of the arm position detection means 106 drives the electric motor 143 by the amount corresponding to the detection information (the movement position of the guide rod 97) to rotate the screw shaft 141 in the forward direction, and adjuster 142 Slide backwards.

  Then, the link mechanism 145 converts the rearward movement of the adjustment body 142 into the rotation movement of the rotation plate body 126 in the direction of the arrow U, and the second relay transport mechanism 55 has its feed start end at the first relay. It is rotated upward around the long-axis bolt 134 so as to approach the feed end portion of the transport mechanism 54.

  On the other hand, when there is a large amount of harvested grain culm that is nipped and transported by the vertical transport mechanism 53 and the vertical transport guide body 56, the guide trough 97 of the vertical transport guide body 53 moves away from the endless chain 94 of the vertical transport mechanism 53. The arm position detection sensor 106 detects this movement position. The controller 160 that has acquired the detection information of the arm position detection means 106 drives the electric motor 143 by the amount corresponding to the detection information (the movement position of the guide rod 97) to reversely rotate the screw shaft 141, thereby adjusting the body 142. Slide forward.

  Then, the link mechanism 145 converts the forward sliding motion of the adjusting body 142 into the rotational motion of the rotational plate body 126 in the direction of arrow D, and the second relay transport mechanism 55 is configured so that the feed start end thereof is the first relay. It is turned downward around the long bolt 134 so as to move away from the feed end portion of the transport mechanism 54.

  That is, according to the configuration of the embodiment, the vertical relay posture of the second relay transport mechanism 55 is changed / adjusted according to the amount of the harvested cereal culm transported by the vertical transport mechanism 53, so that the second relay The conveyance mechanism 22 can be set to an appropriate posture according to the working state. Therefore, when handing over the harvested cereal mash from the vertical transport mechanism 53 to the feed chain 6, it is possible to suppress conveyance disturbance and spillage, and it is possible to improve the inheritance efficiency (certainty) regardless of the amount of the harvested cereal mash.

  In particular, in the embodiment, the driving force of the second relay transport mechanism 132 (circular driving force of the relay endless chain 128) is extracted from the adjacent feed chain 6 via the sprocket-type transmission means 81. For example, the structure of the transmission means 81 itself can be simplified as compared with the case where the driving force is taken out from the cutting pretreatment device 3 side. For this reason, it can contribute to the weight reduction of the 2nd relay conveyance mechanism 55 rotated up and down around the long axis volt | bolt 134, and reduction of component cost.

  Now, when performing the handling operation, the supply guide body 112 positioned above the front end of the feed chain 6 is swung up to the non-acting posture, but in the embodiment, the rear side of the supply guide body 112 or the stopper piece. When the posture detection switch 119 hits the posture detection switch 112 and the fact that the supply guide body 112 is in the non-operation posture is detected by the posture detection switch 112, the controller 160 that has acquired the detection information of the posture detection switch 121 The motor 143 is driven to rotate the screw shaft 141 in the forward direction, and the adjustment body 142 is slid rearward until the regulating piece 151 comes into contact with or comes close to the rear inner periphery of the guide groove hole 152 in the receiving plate 139.

  Then, the link mechanism 145 converts the backward sliding motion of the adjusting body 142 into the rotational motion of the rotational plate body 126 in the direction of the arrow U, and the second relay transport mechanism 55 is tilted upward and obliquely upward. It is forcibly turned upward to the moving posture (see the solid line state in FIGS. 8, 9 and 11). That is, in the embodiment, in conjunction with the turning-up rotation of the supply guide body 112, the second relay transport mechanism 55 is configured to rotate upward around the long-axis bolt 134 to the upper limit rotation posture. .

  When such a configuration is adopted, when performing a handling operation, the second relay conveyance mechanism 55 functions as a cereal receptacle that rises diagonally forward and upward from the feed start end side of the feed chain 6 that is inclined diagonally forward and downward. It becomes easy to place the harvested cereal rice cake S to be handled on the feed start end side of the feed chain 6. For this reason, at the time of a handling operation, the cutting cereal meal can be easily and smoothly fed into the threshing device 5, and the handling efficiency of the handling operation is improved.

(9). Others The configurations of the above-described embodiments are not limited to those shown in the drawings, and various modifications can be made without departing from the spirit of the present invention.

It is a left view of a combine. It is a top view of a combine. It is a schematic side view of a cutting pretreatment apparatus. It is a schematic plan view of a cutting pretreatment apparatus. It is a skeleton figure of a power transmission system. It is a top view of a vertical conveying apparatus. It is VII-VII sectional drawing of FIG. It is a schematic side view which shows the relationship between a feed chain and a supply guide body. It is an enlarged side view by the side of the feed start end in a feed chain and an auxiliary conveyance apparatus. It is an enlarged plan view on the feed start end side in the feed chain and the auxiliary transport apparatus. FIG. 11 is an enlarged side sectional view taken along line XI-XI in FIG. 10. It is an expanded sectional side view of an attitude | position adjustment mechanism. It is a functional block diagram of a controller.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Cutting pre-processing apparatus 5 Threshing apparatus 6 Feed chain 21 Grain basket conveying apparatus 43 Vertical transmission pipe 53 Vertical conveying mechanism 54 First relay conveying mechanism 55 Second relay conveying mechanism (auxiliary conveying mechanism) as auxiliary conveying mechanism
56 Vertical conveyance guide body (clamping guide member) as a clamping guide member
58 Transmission case 79 FC clutch 80 Feed chain shaft 81 Sprocket type transmission means 97 Guide rod 106 Arm position detection sensor 112 as conveyance amount detection means 121 Supply guide body 121 Attitude detection switch 125 as attitude detection means Bracket member 126 Rotating plate Body 127 Relay driven roller 128 Relay endless chain 129 Boss body 130 Power branch shaft 131 Branch sprocket 132 Relay sprocket 133 Rotating boss portion 134 Long shaft bolt 140 Attitude adjustment mechanism 141 Screw shaft 142 Adjustment body 143 Electric motor 145 as an actuator Link mechanism 148 Rotation position detection sensor 160 Controller (control means)

Claims (3)

A traveling machine body equipped with a threshing device with a feed chain, a pre-cutting treatment device attached to the front part of the traveling machine body, and a supply guide body facing the upper surface on the feed start end side in the feed chain, Between the feed chain and the vertical transport mechanism that transports the stock source side of the harvested cereal rice cake toward the feed chain in the pre-harvest processing device, the vertical rotation type relays the stock side transport. A combine in which an auxiliary transport mechanism is arranged,
The supply guide body is configured to be able to flip up and move away from the feed chain,
The auxiliary transport mechanism can be rotated up and down with the feeding rear side as a fulcrum, and in conjunction with the flip-up rotation of the supply guide body, the auxiliary conveyance mechanism rotates upward to an upper limit rotation posture inclined obliquely forward and upward. Is configured to
Combine. Attitude detection means for detecting whether or not the supply guide body is flipped up and turned up, and an actuator for turning the auxiliary transport mechanism upward to the upper limit rotation attitude according to detection information of the attitude detection means And
The combine according to claim 1. The auxiliary transport mechanism is configured to transmit power from the feed chain via sprocket-type transmission means associated therewith,
The combine according to claim 1 or 2.

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