JP4366028B2 - Fixed structure of the waste transporting device in the threshing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a fixing structure of a waste transporting device in a threshing machine that can be mounted on a combine, a harvester or the like.
[0002]
[Prior art]
Conventionally, a threshing machine mounted on a combine or the like has a handling chamber case that rotatably supports a handling cylinder, and a waste that conveys and drains the threshed waste toward the rear side of the rear cutting area in an oblique direction. Maintenance operations such as cleaning and maintenance / inspection of this part are performed by raising and rotating both of the conveying devices together and opening the lower part of the handling chamber and the waste conveying device.
The threshing machine as described above, for example, as shown in Japanese Patent Laid-Open No. 8-89062, fixes the handling case to the threshing lower machine frame through a lock mechanism so that it can be engaged and disengaged. While supporting the shaft as a pivot point so that it can be turned up and down, and with the waste transporting device connected to the chamber case side, the transport end side is engaged with the threshing lower machine frame via a fixing mechanism and turned up and down. With the structure supported so as to be movable, after the locking mechanism and the fixing mechanism are respectively released, the handling case and the waste transporting device are integrally rotated up and down.
[0003]
[Problems to be solved by the invention]
However, the threshing machine configured as described in the above publication is configured such that the unlocking and fixing of the lock mechanism of the handling chamber case and the fixing mechanism of the evacuation / conveyance device are performed simultaneously by the operation lever, so that the lock mechanism After releasing the fixing mechanism and raising the handling case and the waste transporting device to perform maintenance work, when both are turned down and fixed in the threshing posture again, the both parts are turned down. In addition, the operation lever must be operated at the same time, and the handling chamber case and the evacuation transport device that support the displacement fulcrum by deviating from each other tend to cause a difference in the fixing timing of the locking mechanism and the fixing mechanism. There are problems such as difficulty in simultaneous fixing of the lock mechanism and the fixing mechanism which are performed together with the lowering rotation by the operation lever, and the operation becomes complicated.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the fixing structure of the waste transporting device in the threshing machine according to the present invention firstly includes a handling chamber case in which the handling cylinder 12 is rotatably supported between the inlet side plate 31 and the outlet side plate 32. 3 is fixed to the threshing lower machine frame 1a through a lock mechanism 5 so as to be able to be engaged and disengaged. In a state where the conveyance start end side is connected to the handling case 3 side, the conveyance end side is fixed to the threshing lower machine casing 1a via the fixing mechanism 6 so as to be detachable. By release lever 3L In the threshing machine 1 configured to integrally rotate the handling case 3 and the waste transporting device 2 up and down by the unlocking operation of the locking mechanism 5 and the fixing mechanism 6, The lock mechanism 5 is configured such that a lock member 51 provided on the side of the handling chamber case 3 can be engaged with and disengaged from a fixed piece 54 provided on the threshing lower machine casing 1a side. The fixing rod 22 is configured to be fixed or released by the fixing claw 60, and the fixing release lever 3L and the lock member 51 are connected by the connecting rod 52, while the lock member 51 is provided with a long hole-like connecting portion 55, By connecting the long hole-like connecting portion 55 and the operating rod 61 that operates the fixed claw 60 in the releasing direction by the connecting rod 56, The lock mechanism 5 on the side of the handling chamber case 3 and the fixing mechanism 6 on the side of the waste transporting device 2 are connected so as to be simultaneously released by the fixing release operation of the fixing release lever 3L, and the handling chamber case 3 and the waste transporting device are connected. 2 is fixed when turning downward. Due to the downward rotation of the chamber case 3, A locking member 51 of the locking mechanism 5; With lock mechanism 5 alone It is characterized by being automatically performed by the fixing claw 60 of the fixing mechanism 6.
[0006]
First 2 In the handling case Three Linked to the downward rotation, the operating portion 67 that is rotatably supported by the fulcrum shaft 33 is operated. By bringing the operating portion 67 into contact with the guide member 8 integrated with the fixed claw 60, It is characterized in that the fixing claw 60 is brought into the receiving posture of the fixing rod 22.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a threshing machine mounted on a traveling machine body such as a combine machine, which is installed behind a cutting part (not shown) provided in front of the machine body, and the harvested grain straw is placed in the handling chamber 11 through the feed chain 10. While feeding and threshing with the handling cylinder 12, the threshed threshing is sorted by a sorting mechanism 14 installed below the receiving net 13, and the selected grains are stored in a Glen tank 15 installed on the machine side, and are mixed. The material is discharged from the dust outlet 16 to the rear side of the machine, and the threshed waste is transferred from the terminal end of the feed chain 10 to the waste conveying device 2 and discharged outside the machine.
[0008]
And the handling room case 3 used as the threshing upper machine frame which comprises the handling room 11 with the threshing lower machine casing 1a, and the said waste conveying apparatus 2 are both outside (the back side of the handling room case 3) as a fulcrum. The feed chain 10 side) is greatly opened so that maintenance work such as clogging removal and cleaning in the handling chamber 11 and the cereal conveyance route, and inspection and repair can be easily performed.
[0009]
Further, the waste transporting device 2 is directed inward from the terminal end side of the feed chain 10 behind the handling case 3 in a state where the waste chain 21 is wound around a transport frame 20 supported by a support structure described later. Thus, the waste is conveyed in a substantially horizontal posture while being mounted and supported in an inwardly inclined shape.
The feed chain 10 provided on the threshing lower machine casing 1a side is provided with a holding rail 10a provided on the handling chamber case 3 side, and the rear top plate side of the threshing lower machine casing 1a is provided on the waste chain 21. The sandwiching rails 21a provided on the top are arranged so as to perform a series of sandwiching and transporting of the cereals.
[0010]
As shown in FIGS. 2 to 4, the handling chamber case 3 has a configuration in which an inlet side plate 31 and an outlet side plate 32 that pivotally support the handling cylinder 12 rotatably on the front and rear sides of the top plate 30, and the receiving net 13 side. And the metal part 3M provided on the inlet side plate 31 and the outlet side plate 32 on the back side of the chamber case 3 (inside the machine body) is installed on the threshing lower machine casing 1a side. As shown by the dotted lines in FIGS. 2 and 3, the chamber case 3 is vertically pivotable about the fulcrum shaft 33 as supported by the fulcrum shaft 33.
Further, the fulcrum shaft 33 extends from the back surface of the outlet side plate 32 to a position close to the rear waste transporting device 2, and the rear end portion of the support frame 17 extends from the grain discharge cylinder 15 a side of the grain tank 15. It is reinforced and supported.
[0011]
And from the normal threshing work posture shown in FIG. 1, the handling chamber case 3 is operated by operating the front and rear fixing release levers 3L provided on the front wall side (feed chain 10 side) of the handling chamber case 3 upward. The lock mechanism 5a on the inlet side plate 31 side and the lock mechanism 5 on the outlet side plate 32 side are released, and the handling chamber case 3 can be opened upward around the fulcrum shaft 33, and the maintenance working posture is opened. To be able to.
The locking mechanisms 5a and 5 are each in a state in which plate-like locking members 51a and 51 each having a hook portion 50 are pivotally supported on the inlet side plate 31 and the outlet side plate 32 of the chamber case 3 in a pivotable manner. The side is connected to each of the fixing release levers 3L by the connecting rod 52, and is urged in the locking direction by the spring 53, and the hook portion 50 protrudes from the threshing lower machine casing 1a side to the pin shaft-like fixing piece 54, The lock is releasably locked by operating the fixing release lever 3L.
[0012]
On the other hand, the lock member 51 pivotally supported by the mounting shaft 32a on the outlet side plate 32 side forms a long hole-like connecting portion 55 on the other side (upper side) of the connecting rod 52 side, and the connecting portion 55 and an operation described later. By connecting the connecting piece 61a protruding from the hook 61 with the connecting hook 56, the lock member 51 of the lock mechanism 5 and the fixing claw 60 of the fixing mechanism 6 are connected to one fixing release lever 3L at the same time. The operation of releasing the fixation between the handling case 3 and the evacuation / conveying device 2 is easily and quickly performed with a simple configuration.
At this time, the lock member 51 of the lock mechanism 5 releases the lock release lever 3 </ b> L upward and releases the engagement with the fixed piece 54. The stopper 32b is provided in contact with the stopper 32b so as to be unable to turn more than a predetermined amount. As a result, the handling case 3 and the waste transporting device 2 are rotated downward from a maintenance work posture described later and a threshing work posture. When returning to H, the hook portion 50 is automatically engaged with the fixed piece 54 against the spring 53 so that the return operation can be performed smoothly.
[0013]
Above the lock mechanism 5 on the outlet side plate 32 side, there is provided a support lock mechanism 5b that temporarily holds the maintenance work posture of the handling case 3, and the inlet side plate 31, the outlet side plate 32, and the threshing lower machine. Between the frames 1a, an ascending / rotating urging mechanism 3S made up of a known gas damper mechanism or the like that assists the ascending / rotating movement of both the handling chamber case 3 and the waste transporting device 2 is interposed. ing.
The support lock mechanism 5b in the illustrated example pivotally supports the upper portion of the center portion of the support plate 57 formed in a T shape on a mounting shaft 32c projecting from the outlet side plate 32, and has one end thereof serving as a handling chamber. The front end of the case 3 is connected to a release wire 58 of a support release lever 57L provided between the fixation release levers 3L and L, and the other end is connected to a spring 59 that pulls and biases the outlet side plate 32 from above the outlet side plate 32. In addition, an engaging portion 57a that engages and disengages with a fixed piece 1b projecting on the threshing lower machine casing 1a side is cut out at the leading end side of the hanging portion.
[0014]
As a result, when the support lock mechanism 5b is fully opened by moving the chamber case 3 into the maintenance work posture, the engaging portion 57a of the support plate 57 is urged by the spring 59 and engaged with the fixed piece 1b at that position. The chamber case 3 and the waste transporting device 2 are automatically positioned and supported.
Further, in this state, when the support release lever 57L is operated in the release direction, the support plate 57 rotates in the reverse direction against the spring 59 and releases the engagement between the engagement portion 57a and the fixed piece 1b. The chamber case 3 and the waste transporting device 2 can be easily returned and rotated to the original threshing posture with the fulcrum shaft 33 and the accommodation support mechanism 2b as the center.
[0015]
Next, the waste transporting device 2 will be described with reference to FIGS. In the threshing work posture, the scouring and transporting device 2 supports the start end of the transport frame 20 by the transport driving unit 2a on the outlet side plate 32 side, and the fixing support 22 provided at the terminal end of the transport frame 20 as an accommodation support mechanism 2b. The front side of the fixing rod 22 is supported and supported by the supporting frame 17 through the fixing mechanism 6 in a stable and detachable manner with respect to the fulcrum shaft 33.
That is, when the fixing release lever 3L is operated upward by the above-described configuration, the lock mechanisms 5a and 5 and the fixing mechanism 6 are connected and released to open the chamber case 3 as it is. The apparatus 2 can be in a maintenance work posture in which the accommodation support mechanism 2b is used as an accommodation support fulcrum and the start end side is greatly opened upward, and at the time of closing to switch from the maintenance operation posture to the threshing operation posture, The waste transporting apparatus 2 can be automatically locked (fixed) individually.
[0016]
At this time, since the transport frame 20 is supported by the interchangeable support mechanism 2b so that the transport frame 20 can be interchanged, the evacuation transport apparatus 2 can rotate simultaneously even if it has a rotation fulcrum different from the handling chamber case 3. While being able to perform smoothly, the movement to the downward side of a termination | terminus part is controlled at the time of rotation, and contact with another place is prevented.
In other words, the accommodation support mechanism 2b includes a support link 23 that can be refracted in a direction that allows movement of the transport frame 20 in the extending direction and that restricts and supports the vertical movement of the transport frame 20; It is composed of a universal joint 25 composed of a pillow ball joint or a universal joint that allows dynamic rotation and tilting to the side.
Then, the base of the support link 23 is fixed to the support frame 17, and a universal joint 25 attached to the other end of the support link 23 is attached to the rear end of the transport frame 20. Removably attached to the end.
[0017]
Accordingly, when the handling chamber case 3 is pivoted upward about the fulcrum shaft 33 and the evacuation transport device 2 is moved upward with the accommodation support mechanism 2b as a fulcrum, the evacuation transport device 2 is lowered on the terminal end side. The movement is regulated and supported so as to be accommodated and moved rearward in a substantially horizontal direction, and the waste transporting device 2 is brought into contact with the rear top plate of the threshing machine 1 or a waste processing device (not shown). In addition, it enables a smooth switching opening operation from the threshing work posture to the maintenance work posture, and the waste transporting device 2 extends to the desired length with the transport terminal side facing the rear of the fulcrum shaft 33. It is also possible to accurately discharge the waste to the already cut ground side and to perform the combine work well.
[0018]
Further, as shown in FIGS. 4 and 6, a mounting bracket 27 of a reinforcing connecting rod 26 that is connected to the outlet side plate 32 side and is reinforced can be rotated near the fixing mechanism 6 at the rear extension portion of the fulcrum shaft 33. The other end of the reinforcing connecting rod 26 attached to the mounting bracket 27 is fixedly attached to a mounting base 28 that supports the transport driving unit 2a of the waste transporting device 2 on the outlet side plate 32. .
The mounting base 28 is attached to the lower surface thereof with a rejection gear case 28a pivotally connected to the starting end of the transport frame 20, and the rejection gear case 28a transmits rotational power on the side of the barrel 12 as a drive sprocket. When the evacuation chain 21 is driven and the connection and fixing mechanism 6 between the interchangeable support mechanism 2b and the support frame 17 is released, the terminal end side of the evacuation transport device 2 is turned around the transport drive portion 2a. In the state where the fixed rod 22 of the discharge / conveyance device 2 is supported by the accommodation support mechanism 2b, the upper end of the terminal portion is moved upward and the backlash is supported by the fixing mechanism 6 as a fulcrum shaft. This is prevented by fixing it to the 33 side.
[0019]
Next, a first embodiment of the fixing mechanism 6 according to the present invention will be described with reference to FIGS. The fixing mechanism 6 has an operating rod 61 that protrudes from the fulcrum shaft 33 side to rotate the fixing claw 60 in the releasing direction via the lock member 51 and the linkage 56 based on the operation of the fixing release lever 3L. A plurality of support pieces 62, 62,...
Further, the operation rod 61 of the illustrated example has an attachment piece 63 protruding from the end side thereof, and a fixing claw 60 is attached and fixed to the attachment piece 63 so that the positioning can be adjusted.
[0020]
The fulcrum shaft 33 is provided with a U-shaped receiving seat 65 projecting at a position facing the fixed claw 60, and the fulcrum shaft 33 is supported by the urging force of a spring 66 interposed between the fixed claw 60 and the fulcrum shaft 33. In a state where the fixing rod 22 is placed in 65, the fixing rod 22 is configured to prevent rattling when the fixing rod 22 is clamped and fixed by the fixing claws 60.
Although the spring 66 in the illustrated example is a torsion spring, it may be a plate spring or the like.
[0021]
In addition, when the squeezing / conveying device 2 is returned and rotated downward from the maintenance work posture to the threshing work posture, the fixing mechanism 6 moves the fixing claw 60 biased in the fixing direction by the spring 66 to the spring. A guide lock mechanism 9 is provided that receives the fixing rod 22 against 66 and guides it to the original fixed posture.
The guide lock mechanism 9 protrudes from a pin shaft-like operating portion 67 protruding from the side of the mounting bracket 27 and a midway portion of the operating rod 61 at a position facing the operating portion 67 so as to be engageable. The fixing claw 60 can receive the fixing rod 22 that is composed of a guide member 8 for maintaining the posture in which a regulating surface 80 and a guide surface 81, which will be described later, are formed into a bowl shape, and that rotates downward from the maintenance work posture. The posture is held so as to guide from the open posture (accepting posture) to the pinching fixed posture.
[0022]
That is, as shown in FIG. 5A, in the open posture (fixed release posture) of the fixed claw 60 in a state in which the waste transporting device 2 is in the maintenance work posture, it rotates in the same direction as the waste transport device 2 is opened. The operating portion 67 of the moving mounting bracket 27 contacts the regulating surface 80 of the integral guide member 8 via the fixed pawl 60 and the operating rod 61 in the open posture, and resists the biasing force of the spring 66. I keep it in a posture. Therefore, even if the fixing release lever 3L is released in this state, the fixing claw 60 can maintain the above-described posture stably, and the handling chamber case 3 and the waste transporting device 2 can be smoothly turned up and down. There are advantages such as being able to.
And when returning and rotating the rejection conveying apparatus 2 from the maintenance work posture to the threshing work posture, as shown in the same figure (B) with the return rotation of the mounting bracket 27 around the fulcrum shaft 33, Since the operating portion 67 shifts from the regulating surface 80 of the guide member 8 so as to contact and support (regulate and hold) the lower guide surface 81, at this time, the fixing claw 60 gradually moves toward the fixed side by the urging force of the spring 66. Although it rotates, in the initial stage, the fixed claw 60 is still in the open receiving position, so that the fixed rod 22 is smoothly introduced into the hook portion of the fixed claw 60.
[0023]
Next, when the waste transporting device 2 is further rotated downward, as shown in FIG. 3C, the operating portion 67 is in a position where the guide member 8 is not regulated and held, so that the fixed pawl 60 is biased by the spring 66. Therefore, the fixing rod 22 can be clamped and fixed with the receiving seat 65 formed on the extension portion of the fulcrum shaft 33 shown in FIG.
Therefore, the waste transporting device 2 provided with the rotation fulcrum (installation position of the accommodation support mechanism 2b) at a position deviated rearward with respect to the rotation fulcrum of the handling chamber case 3 has the handling chamber case by the lock mechanism 5. 3, even if it is operated at a timing slightly delayed from the locking operation of 3, the fixing rod 22 is received and guided to the original fixed posture by the fixing claw 60 that performs locking operation separately from the locking mechanism 5. Can be automatically clamped and fixed, so that both can be stably and quickly fixed to the threshing posture even when the lock operation of the handling chamber case 3 and the evacuation transport device 2 has different timings. At the same time, the connecting structure of the lock mechanism 5 and the fixing mechanism 6 can be simplified without requiring complicated adjustment and structure.
[0024]
The threshing machine configured as described above conveys and holds the stocker side of the cereal by the feed chain 10 in the combine operation in the state in which the handling chamber case 3 and the waste transporting device 2 are in the threshing posture. The tip side is threshed inside, and the threshed waste is transferred from the feed chain 10 to the waste transporting device 2, nipped and transported outside the machine and discharged.
In such a threshing operation, if waste waste gets entangled in the handling cylinder 12 or the inside of the handling chamber 11 is clogged, or if the waste conveying device 2 is clogged with waste, etc., and you want to perform these maintenance operations Further, when the fixing release lever 3L is operated upward, the lock mechanisms 5a and 5 in the front and rear of the chamber 11 release the lock with the threshing lower machine casing 1a of the chamber case 3, and the lock mechanism 5 on the outlet side plate 32 side. However, since the fixing mechanism 6 of the waste transporting device 2 linked to this is released, the chamber case 3 and the waste transporting device 2 can be rotated upward with the fulcrum shaft 33 and the interchangeable support mechanism 2b as fulcrums, respectively. .
[0025]
As a result, both of them are switched to the above-described maintenance work posture, and the support lock mechanism 5b automatically opens and supports the maintenance work posture, so that the maintenance work can be easily performed from this largely opened portion.
After the maintenance work is completed as described above, the support release lever 57L is pulled down to release the opening support, and the handling chamber case 3 is lowered to move the handling chamber case 3 downward. The waste transporting device 2 is also lowered to the normal waste transporting position, and the handling chamber case 3 is automatically fixed to the threshing lower machine casing 1a side by the lock mechanism 5 and the waste transport device 2 is fixed to the lock mechanism. 5 is automatically performed by the fixing mechanism 6 independently, and both can be stably fixed and supported in the original threshing posture, and the threshing operation can be performed smoothly again.
[0026]
At this time, the fixing structure of the waste transporting device is such that the lock mechanism 5 on the side of the handling case 3 and the fixing mechanism 6 on the waste transporting device 2 side are linked so as to be simultaneously released by the fixing release operation of the fixing release lever 3L. The handling case 3 and the evacuation transfer device 2 can be automatically fixed by the locking member 51 of the locking mechanism 5 and the fixing claw 60 of the fixing mechanism 6 while being lowered. There are advantages such as proper and linked operation depending on the configuration.
[0027]
That is, when the lock release lever 3L is operated and the lock member 51 of the lock mechanism 5 rotates in the release direction, the long hole-like connecting portion 55 rotates the operating rod 61 via the connecting rod 56 and the connecting piece 61a. Since the fixing claw 60 of the fixing mechanism 6 is rotated and the fixing and fixing of the fixing rod 22 is released in conjunction with the release of the lock mechanism 5 of the handling case 3, the handling case 3 and the discharge are released together with the release operation of the fixing release lever 3L. The scissors conveying device 2 can be quickly opened upward in a one-touch state.
[0028]
Further, in a state where the chamber case 3 and the waste transporting device 2 are held in the maintenance work posture, the lock member 51 is rotated by the spring 53 and is in contact with the stopper 32 b, and the fixing claw 60 of the fixing mechanism 6. In the state where the released posture is held, the fixed rod 22 at the time of lowering rotation is received and the fixed claw 60 is allowed to be fixed. The connecting end of the connecting portion 55 is in a free state within the long hole of the connecting portion 55, and the rotation fulcrum is displaced without interfering with holding the release posture of the fixing claw 60 and fixing operation (locking operation) at the closing time. The lock operation at different timings when the case 3 and the waste transporting device 2 are closed can be automatically performed individually.
[0029]
Therefore, when the maintenance work is finished and the support lock mechanism 5b is released, and the chamber case 3 and the waste transporting device 2 are moved downward and closed, the chamber case 3 closes the fulcrum shaft 33 as a fulcrum. The hook portion 50 of the lock member 51 is automatically engaged with the fixing piece 54 and can be quickly fixed to the threshing work posture with the closing operation.
Further, even if the evacuation transport device 2 rotates downward with the interchangeable support mechanism 2b displaced rearward from the fulcrum shaft 33 as a fulcrum and operates at a timing slightly delayed from the lock operation of the lock mechanism 5, the lock mechanism The fixing claw 60 of the fixing mechanism 6 separately from 5 is in the receiving posture against the spring 66 by the guide member 8 of the guide lock mechanism 9 and receives the fixing rod 22 to be guided to the original fixing posture. After that, there is a feature that the fixing rod 22 can be clamped and fixed automatically.
[0030]
Next, another embodiment of the fixing structure in the waste transporting apparatus of the present invention will be described with reference to FIGS. The description of the same configuration and operation as those of the first embodiment will be omitted.
First, in the fixing mechanism 6 according to the second embodiment of the present invention shown in FIG. 7, a release posture guide surface 82 and a fixed posture guide surface 83 of the fixing claw 60 are formed on the front surface of the mounting bracket 27 so as to project in a cam shape. By forming an operating portion 67 as a guide portion and projecting a guide member 8 that can be brought into sliding contact with the operating portion 67 from the operation rod 61 side, the guide lock mechanism 9 is configured by both.
[0031]
That is, when the unlocking lever 3L is unlocked, the fixing claw 60 and the guide member 8 are released and rotated in the direction of the solid arrow through the operating rod 61 as in the first embodiment, so that the fixing rod 22 is in a free state. Therefore, the waste transporting device 2 can be turned upward with the accommodation support mechanism 2b as a fulcrum.
Then, the mounting bracket 27 mounted on the fulcrum shaft 33 is rotated in the direction of the solid arrow through the reinforcing connecting rod 26 in accordance with the upward rotation of the chamber case 3 and the evacuation transport device 2, and When the guide member 8 is moved from the fixed posture guide surface 83 of the mounting bracket 27 to the released posture guide surface 82 and brought into contact with the release posture, the fixed claw 60 is linked and switched to the state in which the fixed claw 60 is held in the released posture. .
[0032]
As a result, the fixing claw 60 can be held in a receiving posture that allows the fixing rod 22 to be received and fixed when the evacuation transport device 2 is rotated downward, and the fixing rod 22 is rotated downward in the direction of the dotted arrow. When shifting into the fixed claw 60, the guide member 8 urged against and pressed against the release posture guide surface 82 by the spring 66 is moved toward the fixed posture guide surface 83 by the rotation of the mounting bracket 27 in the direction of the dotted arrow. The fixing claw 22 can be pinched and fixed accurately by the urging force of the spring 66 as in the first embodiment.
Accordingly, as in the first embodiment, the pivot support point of the waste transporting device 2 is offset from the pivot support point of the handling chamber case 3 and the fixing rod 22 provided on the waste transporting device 2 is provided. Since the fixing claw 60 of the fixing mechanism 6 that removably fixes the handle is linked to the downward rotation of the handling case 3 or the evacuation transport device 2 and the fixing rod 22 is properly received and fixed, the threshing work posture Can be smoothly performed, and the fixing rod 22 is brought into the receiving posture by the operating portion 67 supported rotatably on the fulcrum shaft 33. Therefore, the fixing mechanism 6 is compactly collected on the fulcrum shaft 33 portion. It can be installed and configured.
[0033]
Next, a third embodiment of the present invention will be described with reference to FIGS. The fixing mechanism 6 is provided with a guide portion 8a that is fixed to the fixed claw 60 so as to be switched and held in a release posture in accordance with the downward rotation of the waste transporting device 2, and the guide portion 8a is placed on the waste transporting device 2 during the downward rotation. The guide lock mechanism 9 is configured by providing an operating portion 67 that operates in the release direction to guide and fix the waste transporting device 2.
That is, the fixing mechanism 6 shown in FIG. 9 has a roller shaft-shaped guide portion 8a integrally protruding on the side surface of the fixing claw 60, and a cam plate at a portion of the fixing rod 22 facing the guide portion 8a. The actuating part 67 is integrally attached, and the actuating part 67 has a release surface 67a that pushes the guide part 8a in the release direction at the tip thereof, and a release posture holding surface with a smooth receding angle on the upper surface connected thereto. 67b is formed.
[0034]
With this configuration, when the handling release case 3L is operated and the handling chamber case 3 and the waste transporting device 2 are raised and rotated from the fixed state of the waste transporting device 2 shown in FIG. As a result, the urging force of the spring 66 waits at a position urged further inward than the fixed posture position, as shown in FIG.
When the anchor rod 22 descends along an arc trajectory with the interchangeable support mechanism 2b as a fulcrum as the squeezing / conveying device 2 descends, the release surface 67a of the operating portion 67 is guided by the guide 67 as shown in FIG. The fixed claw 60 is pushed in the release direction with the slope of the steep angle, and then the guide portion 8a is moved up to the release posture holding surface 67b side to temporarily change the release posture of the fixed claw 60. Since it is held and forced into a receiving posture, as shown in FIG. 5B, after receiving the fixing rod 22, the guide of the guide lock mechanism 9 is released and fixed by the fixing claw 60 by the urging force of the spring 66. Smoothly hold and fix the flange 22.
[0035]
Next, a fourth embodiment of the present invention shown in FIG. 10 will be described. Similarly to the third embodiment, the fixing mechanism 6 is provided with a guide portion 8a that is held on the fixed claw 60 so as to be switched to a release posture in accordance with the downward rotation of the waste transporting device 2, and the waste transporting device 2 is provided with the guide mechanism 8a. The guide lock mechanism 9 is configured by providing an operating portion 67 that operates the guide portion 8a in the releasing direction during the downward rotation and guides and fixes the waste transporting device 2.
That is, in the fixing mechanism 6 shown in the figure, the guide portion 8a is provided with the tip of the fixing claw 60 formed on a wide inclined surface in the vertical direction, and the fixing rod 22 portion facing the guide portion 8a is directly provided. The operation part 67 has a simple configuration.
According to this configuration, when the fixing release lever 3L is operated from the fixed state of the fixing rod 22 shown by the solid line in FIG. As a result of the detachment, the urging force of the spring 66 waits at a position urged further inward than the fixed posture position, as in the third embodiment indicated by the dotted line.
[0036]
In this state, when the fixed rod 22 descends along an arc trajectory with the interchangeable support mechanism 2b as a fulcrum as the evacuation / conveying device 2 descends, the operating portion 67 of the fixed rod 22 guides as shown by the dotted line in FIG. The fixed claw 60 is pressed against the urging force of the spring 66 in the release direction of the dotted arrow while being in contact with the portion 8a and sliding on the slope, and the release posture of the fixed claw 60 is temporarily held to accept the posture. Therefore, after receiving the fixing rod 22, the guide of the guide lock mechanism 9 is released, and the fixing hook 22 is smoothly held and fixed by the fixing claw 60 by the spring 66.
The fixed rod 22 is provided with a sliding member made of a wear-resistant metal member or a bearing in the operating portion 67. In the illustrated example, instead of the spring 66, the fixed claw 60 is biased toward the fixed posture by a spring 66a that pulls and biases the connecting piece 61a.
[0037]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained. A handling case that pivotally supports the handling cylinder between the inlet side plate and the outlet side plate is fixed to the threshing lower machine frame via a lock mechanism so as to be detachable, and the fulcrum shaft on the rear side of the machine body is pivoted. As shown in FIG. 1, the evacuation transfer device is fixed to the lower threshing machine frame via a fixing mechanism in a state in which the transfer start end side is connected to the handling case side. , By release lever In the threshing machine configured to integrally rotate the handling case and the waste transporting device up and down by the unlocking operation of the locking mechanism and the fixing mechanism, The lock mechanism is configured so that the lock member provided on the handling chamber case side can be engaged with and disengaged from a fixed piece provided on the threshing lower machine frame side, and the fixing mechanism fixes the fixing rod of the waste transporting device with a fixing claw. Alternatively, the fixing release lever and the lock member are connected by a connecting rod, and the lock member is provided with a long hole-like connecting portion, and the long hole-like connecting portion and the fixing claw are released in the release direction. By connecting the operation rod to be operated to The lock mechanism on the side of the chamber case and the fixing mechanism on the side of the waste transporting device are linked so that they can be simultaneously released by the unlocking operation of the unlocking lever, and at the time of the downward rotation of the chamber case and the waste transporting device. Fixing, Due to the downward rotation of the chamber case, A locking member of the locking mechanism; Independent of the locking mechanism By automatically performing each by the fixing claws of the fixing mechanism, the handling case and the waste transporting device can be quickly moved upward in a one-touch state by the release operation of one fixing release lever. In addition, when the handling chamber case and the evacuation transport device are closed, the locking operation between the handling chamber case and the evacuation transport device can be performed individually and accurately even if the locking mechanism and the fixing mechanism have different fixing timings. It can be carried out.
Therefore, it is possible to efficiently and easily perform maintenance work for the handling chamber, the waste transporting device, and the like that are performed by moving both the handling room case and the waste transporting device up and down.
[0039]
In addition, the handling room case Of Operates the operating part that is pivotally supported on the fulcrum shaft, linked to the downward rotation. By bringing the operating part into contact with the guide member integrated with the fixed claw The fixed claw is made to be in the receiving position of the fixed claw, so that the operation of the receiving position of the fixed claw is ensured, the fixed claw is smoothly received and automatically fixed, and the linkage structure of the fixing mechanism is simplified. A compact configuration can be achieved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a threshing machine provided with a fixing mechanism according to a first embodiment of the present invention.
FIG. 2 is a side view of the inlet side plate side of FIG.
3 is a side view of the outlet side plate side of FIG. 1. FIG.
4 is a plan view showing a fixing structure of the handling chamber case and the waste transporting device of FIG. 1. FIG.
5A and 5B are side views showing the configuration and operation of the fixing mechanism, and FIG. (B) is a side view which shows the acceptance attitude | position of the fixed nail | claw of the same figure (A). (C) is a side view showing the fixed posture of the fixed claw.
FIG. 6 is a plan view of a main part showing a connecting structure of a lock mechanism and a fixing mechanism.
FIG. 7 is a side view showing a configuration of a fixing mechanism according to a second embodiment of the present invention.
FIG. 8 is a side view of a threshing machine provided with a fixing mechanism according to a third embodiment of the present invention.
FIG. 9 is a side view showing the configuration and operation of the fixing mechanism of FIG. (B) is a side view showing a fixed posture of the fixed claw of FIG.
FIG. 10 is a side view showing a configuration of a fixing mechanism according to a fourth embodiment of the present invention.
[Explanation of symbols]
1 Thresher
2 Waste transport device
2b Flexible support mechanism
3 Handling room case
3L fixed release lever
5 Locking mechanism
6 Fixing mechanism
8 Guide members
8a Guide part
9 Guide lock mechanism
11 treatment room
12 Handling cylinder
17 Support frame
20 Transport frame
22 fixed rod
27 Mounting bracket
32 Exit side plate
33 fulcrum shaft
51 Locking member
54 Fixed pieces
55 connecting parts
56 consecutive
60 Fixed nails
61 Operation
66 Spring
67 Actuator
67a Release surface
67b Release posture holding surface
80 Regulatory aspects
81 Guide surface
82 Release posture guide surface
83 Fixed posture guide surface

Claims (2)

A handling chamber case (3) in which a handling cylinder (12) is rotatably supported between an inlet side plate (31) and an outlet side plate (32) is connected to a threshing lower machine casing (1a) via a lock mechanism (5). The fulcrum shaft (33) on the inner side of the machine body is supported so as to be pivotable up and down, and the waste transporting device (2) is placed on the transport start end side of the chamber case (3). In the state connected to the side, the conveyance end side is detachably fixed to the threshing lower machine casing (1a) via the fixing mechanism (6), and the locking mechanism (5) and the fixing mechanism by the fixing release lever (3L). In the threshing machine (1) configured to integrally rotate the handling case (3) and the waste transporting device (2) up and down by the unlocking operation of (6), the lock mechanism (5) A fixed piece provided with a locking member (51) provided on the side of the handling case (3) on the side of the threshing lower machine casing (1a) 54), and the fixing mechanism (6) is configured to fix or release the fixing rod (22) of the waste transporting device (2) with a fixing claw (60), and to release the fixing. While the lever (3L) and the lock member (51) are connected by the connecting rod (52), the lock member (51) is provided with a long hole-like connecting portion (55), and the long hole-like connecting portion (55) By connecting an operation rod (61) for operating the fixed claw (60) in the release direction with a linkage (56), the lock mechanism (5) on the side of the chamber case (3) and the waste transporting device The (2) side fixing mechanism (6) is linked so as to be simultaneously released by the fixing release operation of the fixing release lever (3L), and the handling chamber case (3) and the evacuation transfer device (2) are moved downward. a fixed time, by the lowering rotation of the threshing chamber casing (3), the locking member of the locking mechanism (5) And 51), the fixing structure of the straw discharge conveying device in a threshing machine for the locking mechanism (5) and the fixed claw fixing mechanism (6) alone (60), characterized by causing each automatically. A guide member (8) integral with the fixed claw (60) is operated by operating the operating portion (67) rotatably supported on the fulcrum shaft (33) in conjunction with the downward rotation of the chamber case (3). The fixing structure of the scouring and conveying apparatus in the threshing machine according to claim 1 , wherein the operating part (67) is brought into contact with the fixing claw (60) so that the fixing claw (60) is in a receiving posture.

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