JPH0638443U - Depth control device in combine - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a handle depth control device for a combine that does not cause culm, loss, and poor ear alignment at the feed chain inlet. [Structure] Only when the mowing section raising lever is operated, and when the handling depth is automatically turned on, the handling depth control device is operated to the deep handling side for a certain period of time to prevent culm spills and spikes at the feed chain inlet. It is something to lose.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a handling depth control device in a combine.

[0002]

[Prior art]

 In conventional combine harvesters, grain culms are weeded by a weeding board, cut by a reaping device while being raised by a raising tine of a raising device, and the cultivated grain culms are conveyed by a conveying device and the grain depth is controlled by a handling depth control device. The handling depth of the culm is controlled and conveyed to the feed chain of the threshing section.As a handling depth control device, the vertical transport body is rotatably displaced to adjust the handling depth of the culm. It is supposed to do.

[0003]

[Problems to be solved by the device]

 The combine harvester as described above has an auxiliary transport chain between the vertical transport body and the feed chain. According to the combine harvester as described above, the cutting ends in the multi-row cutting, and the culm erosion and the misalignment of the spikes (spike) occur at the feed chain entrance at the beginning of the harvest. This does not occur in short culms 60 to 70 cm, but it always occurs when short culms come in while long culms of 80 cm or more are being handled shallower than the standard. That is, even if the distance between the vertical carrier and the auxiliary transport chain is long, if a short culm that does not reach this length enters, the auxiliary transport chain will not be able to grasp it and culm will occur. In addition, the cutting depth automatically stops at the length of the end of cutting, and when the rice to be cut next is short and when the rice becomes high-cutting, not only culm spills occur, but also 1 or 2 articles during cutting. When the amount of rice is small and the transfer speed is slow and there is no inertia, culm is generated. Therefore, the object of the present invention is to obtain a handling depth control device for a combine that does not cause culm loss and paniculate alignment defect at the feed chain inlet.

[0004]

[Means for Solving the Problems]

 In order to achieve the above objectives, the present plan provides the following handling depth control device for combine harvesters. That is, when the raising lever is operated between the handling depth control device that adjusts the handling depth of the grain culvert by rotatably displacing the vertical transporter and when the raising lever is operated, It is a handling depth control device in a combine that is linked so that it operates to the deep handling side only when the control device is automatically turned on.

[0005]

[Action]

 Only when the reaping section raising lever is operated and the handling depth is automatically turned ON, the handling depth control device is operated to the depth handling side for a certain period of time to eliminate the culm slippage at the feed chain inlet.

[0006]

【Example】

 Embodiments shown in the drawings will be described below. First, a conventional combine will be described. In FIGS. 3, 4 and 5, (1) is a track frame on which the traveling crawler (2) is installed, (3) is a machine frame installed on the track frame (1), and (4) is a feed chain (5). A threshing unit that is stretched on the left side and contains a handling cylinder (6) and a processing cylinder (7). (8) is a mowing section equipped with a cutting blade and a grain culm transport mechanism. (9) is the straw processing unit that faces the end of the straw chain (10) (11), (12) is the driver's cab equipped with the driver's seat (13) and the operation unit (14), and (15) is the machine base. An engine part which is arranged at the rear part on the right side of (3) and has an engine (16) built therein, and (17) is arranged in front of the engine part (15) to lift the culm from the threshing part (4). The grain culm tank that stores via (18), and (19) is an upper discharge auger that takes out the grain culm in the grain culm tank (17) to the outside, and is configured to continuously perform mowing and threshing work.

Then, the grain culm sown by the sward plate (20) shown in FIGS. 6 to 7 is raised by the raising tine (21) of the raising case (22), and the star wheel (23) and the scraping belt ( It is scraped by 24), transported by the transport device and cut by the cutting blade (25). The transfer device is configured as follows. In other words, the right culm carrier chain (26) that conveys the culm side of the two right-sided culms to the left and diagonally backward and the tip side of the right two-rowed culm to the left and diagonally rearward of the feed chain (5). The right tip transport tine (27) that conveys toward the feed start end direction, and the culm side and the tip side of the grain culms for 3 and 4 rows from the right side are near the feed end position of the rear right culm transport chain (26). The central culm transport chain (28) and the central tip tine (29) to be merged, and the culm side and the tip side of the left one grain culm are merged near the feed end position of the right culm transport chain (26). The left culm carrier chain (30) and the left ear tip carrier tine (31), and the culm side of the 6-culm culm that joins the feed end of the right culm carrier chain (26) are fed to the feed chain (5). The vertical transfer chain (32), which is a vertical transfer body that inherits the transfer at the feed start end, and the feed end of the right tip tip tine (27) and the vertical transfer chain (32), approximately above and below It is equipped with an auxiliary transport chain (33) that is installed at a position to feed the grains to the feed chain (5) in a proper posture, and cuts the six trimmed grain culms into these Y-shaped transport paths (34). It is configured so that it is passed to the feed chain (5) via () and threshed.

In addition, a mowing frame (38), which is a mowing transmission case, is provided through a vertically rotating fulcrum shaft (37) to a pedestal (36) which is erected and fixed to the front end of the machine base (3) through a column (35). ) And the track frame (1), a reaper lift cylinder (39) is provided so that the main reaper frame (38) can be appropriately moved up and down by the expansion and contraction of the cylinder (39). On the other hand, the vertical transport chain (32) swings from the handling depth adjusting motor (40) mounted on the reaping main frame (38) via the link mechanism (41). By the drive control, the feed start end and the end side of the vertical transport chain (32) are appropriately moved up and down to adjust the handling depth of the grain culms.

In the above, the culm side of the grain culm cut by the cutting blade (25) is located at the confluence part of the transport path (34) which is the end of the feed of each culm transport chain (26) (28) (30). The vertical transfer chain (32) takes over and feeds it to the feed chain (5) .At this time, the feed start end side and the end side of the vertical transfer chain (32) are controlled by the forward and reverse drive control of the motor (40). By moving up and down, each transfer chain (26) (28) (30) is transferred to the vertical transfer chain (32), and from the vertical transfer chain (32) to the auxiliary transfer chain (33) to the feed chain (5). The position of the grain culm when it is handed over changes, and the handling depth is adjusted.

At the end of cutting and the beginning of cutting in the above-described multi-row cutting, culm erosion and poor coherence occur at the feed chain inlet. This plan is an improvement of this. That is, in FIG. 2, the vertical conveyance body (32) is rotationally changed to adjust the cutting depth of the grain culm by a motor (40) as a cutting depth control device and a mowing section raising lever (43). The controller (44) controls so that the interval is operated only when the raising lever (43) is operated and the handling depth control device is automatically turned on. In FIG. 2, reference numeral (45) is a raising switch, (46) is a lowering switch, and (47) is a pump for sending hydraulic pressure to the lifting cylinder (39) of the reaper.

Then, the combine is activated (48) as shown in FIG. 1, the automatic handling depth switch (49) is turned on, and the raising lever (43) turns on the raising switch (45) for a certain period of time (50). During this time, the motor (40) as the handling depth control device operates to the deep handling side for a certain period of time (51). In this case, when the ON time from the ascending switch (45) is 1 second or more, the controller (44) judges and cuts the automatic handling depth, and this signal activates to the deep handling side. In addition, the controller (44) determines that the operation time to the deep handling side should be the time for the vertical transport body (32) to enter the deep handling side as long as there is no rod spillage or ear shift, and the lift lever (43) is raised. Software that cuts off even if you continue to operate on the ascending side. When the lift lever (43) is returned to the neutral position, the original state is maintained unless a new signal is input again. That is, if the L switch (52) of the handling depth control device is ON, the M switch (53) is also ON, and the H switch (54) is not ON, the vertical transport body (32) is as it is. It is the same state. When the L switch (52) is ON and the M switch (53) is not ON, it is determined that the rod is a short rod and the vertical carrier (32) conveys the grain rod to the deep handling side (55) by the motor (4). Work in 0). Next, when the L switch (52), the M switch (53), and the H switch (54) are all ON, the vertical carrier (32) works so as to move the grain rod to the shallow handling side. Furthermore, when the automatic handling depth switch (49) is not ON, the handling depth is manually controlled. And unless a new signal comes in, the above-mentioned handling depth comes into play.

According to the above, when the combine harvester moves around, the automatic handling depth stops at the length at the end of mowing and the next harvest, when the rice is short or when the rice is about to be highly harvested. Since the depth automatic and the lifting lever are installed at the same time, the vertical carrier moves to the deep handling side to prevent the stick from spilling. In any case, in the case of the present invention, when the lift lever is operated and the handling depth is automatic, the controller determines and controls all.

[0013]

[Effect of device]

 According to the plan, since the automatic depth of operation operates to the deep side for a certain period of time only when the raising lever is operated and the depth of operation is automatic, at the end of cutting, It is possible to eliminate culm spills and spike shifts at the feed chain inlet when cutting and ascending, so culm spills and spike shifts can be eliminated.

[Brief description of drawings]

FIG. 1 shows a flow sheet of the proposed device.

FIG. 2 is a simple explanatory view of the device of the present invention.

FIG. 3 is a side view of a vertical transport chain portion in a conventional combine.

FIG. 4 is an overall side view of the combine.

FIG. 5 is a plan view of the same.

FIG. 6 is an explanatory view of the same plane.

FIG. 7 is a side view of the reaping unit.

[Explanation of symbols]

 5 Feed chain 32 Vertical carrier 33 Auxiliary carrier chain 38 Mowing main frame 39 Mowing lift cylinder 40 Motor for handling depth control device 43 Mowing section lifting lever 44 Controller 45 Lift switch

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A handle between a handling depth control device for adjusting the handling depth of a grain culvert by rotationally displacing a vertical carrier and a reaping part raising lever, when the raising lever is operated and the handling is performed. A handling depth control device in a combine that is interlocked so that it operates to the deep handling side only when the depth control device is automatically turned on.