JPH0576236U - Combine with vehicle speed controller - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Detecting overload at the beginning of the mowing threshing work and responding to the vehicle speed by avoiding damage in the mowing and transporting section and preventing clogging in the post-process such as the threshing section. By doing so, you will be able to perform smooth work. [Structure] A load detecting device (1) is provided in a cutting and conveying section which is a pre-process of a threshing section which constitutes a combine, and the apparatus (1) is provided.
The traveling speed can be controlled via the continuously variable transmission mechanism on the basis of the load detection signal, and the traveling speed is automatically controlled to the low speed side when a high load is detected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a combine with a vehicle speed control device that controls a traveling speed of a machine body by detecting a load detection device provided in a reaping and conveying section.

[0002]

[Prior Art]

 Conventionally, as a vehicle speed control device for combine harvesters, a device for controlling the traveling speed, that is, the vehicle speed based on the detection by the load detection device of the threshing section has been disclosed, as disclosed in Japanese Patent Laid-Open No. 56-124316. Detecting the load on the threshing part regardless of the vehicle speed (detecting the amount of grain culm supplied as the threshing load, detecting the rotating speed of the handling barrel as the threshing load, and detecting the rotating torque of the handling barrel as the threshing load) It is known as described in Japanese Utility Model Publication No. 57-38983 that the feed culm conveying speed of feed chain is controlled by the above-mentioned method. Since the control is performed by load detection, the rotation of the mowing and conveying section, which is the pre-process of the threshing section, is much lower than the specified rotation due to overload, and the grain culm in the course of the mowing and conveying may become blocked. To become.

[0003]

[Problems to be solved by the device]

 As described above, the conventional vehicle speed control device controls on the basis of the load detection of the threshing section, and therefore, the grain cutting device is already clogged in the cutting and conveying section in the previous step and the section is damaged. Avoiding damage in the reaping and transporting section and detecting overload at the beginning of the reaping and threshing work so as not to cause clogging in the post-process such as the threshing section, and corresponding the vehicle speed to this so that smooth work can be performed. Is.

[0004]

[Means for Solving the Problems]

 Therefore, in order to solve the problems in the above-described conventional vehicle speed control device and enable smooth work to be performed, the present invention provides a load detection device in the cutting and conveying section, which is a pre-process of the threshing section that constitutes the combine, The traveling speed can be controlled via the continuously variable transmission mechanism based on the load detection signal of the device, and the traveling speed is automatically controlled to the low speed side when a high load is detected.

[0005]

[Action]

 As a result, during harvesting threshing work with the combine, the load detection device installed in the harvesting and transporting section detects the load, and when the load detection device detects a high load above the allowable limit load, the continuously variable transmission device based on this load detection signal. Is activated to control the traveling speed to a low speed side to reduce the amount of grain culm supplied to the mowing and conveying section to smooth the work without imposing an excessive force on the operation of the mowing and conveying section and the threshing section in the subsequent process, and detecting the load. When the load detected by the device falls below the allowable limit load, the traveling speed is returned to the high speed side via the continuously variable transmission.

[0006]

【Example】

 Hereinafter, the combine with vehicle speed control device according to the present invention will be described with reference to the accompanying drawings. First, in FIGS. 4 and 5, the traveling chassis (4) supported by the left and right traveling rollers (3) is shown. ) On the left side, the feed chien (5) is placed on the left side, and the handling room and the swinging sorting body for selecting threshing from this handling room and the straw after threshing are inherited from the fed chien (5) and carried out. The threshing section (A) equipped with a straw transfer device (6) is installed, and the control section (7), grain tank (8), engine (9), etc. are installed on the right side.

Further, in front of the threshing part (A), there are a sward plate (10), a raising device (11), a cutting blade (12), a scraping belt (13), a star wheel (14) and a mowing. A mowing and conveying section (B) including a conveying mechanism (15) for conveying grain culms to the threshing section is provided, and the planted grain culms are mowed by the slicing and conveying section (B) and supplied to the threshing section (A). After threshing treatment, the treated grains are once stored in the grain tank (8), and the straw after threshing is fed from the feed chain (5) to the straw transport device (6). The grain that has been taken over and carried out to the rear, cut into a predetermined length with a straw cutter (C), and stored in the grain tank (8) is removed from the machine by an appropriate discharge auger (16). Taken out.

Then, the rotational power to the reaper carrying section (B) is inputted from the engine (9) to the reaping single shaft (18) in the reaping input case (17) by a transmission means such as an endless belt. The input data is transmitted from the reaping input case (17) to the rotary shaft in the main reaper case (19) projecting downward and forward, and the rotary shaft drives the respective parts of the reaper carrying section (B). I am transmitting.

Next, the drive sprocket (21) is rotated from the engine (9) to the traveling crawler (3) through the mission case (20) to drive the vehicle body. Since the continuously variable transmission mechanism (2) is built in the space (20), an outline thereof will be described below with reference to FIG.

That is, as shown in FIG. 3, an input shaft (22), an intermediate shaft (23), a speed change shaft (24) and an output shaft (25) are provided and are rotated by an engine (9). The pulley (26) is pivotally supported on the input shaft (22), and the belt speed change transmission mechanism (28) and the planetary gear mechanism (29) are positively operated by operating the speed change cam (27) from the input shaft (22). The reverse rotation clutch unit (30) causes the output shaft (25) to undergo continuously variable transmission and forward / reverse rotation switching, and the side clutch input gear (32) is connected to the ring gear (31) which is axially supported by the output shaft (25). ) Are engaged with each other, and the left and right sprocket shafts (33) and (33) are axially supported by final gears (34) and (34) via left and right side clutches (35) and (35). The gear shift output of 25) is transmitted.

[0011]
The left and right side clutches (35) and (35) have side clutch output gears (36) and (36) that always mesh with the final gears (34) and (34), respectively. Clutch pawls (38) (38) to be engaged with the clutch pawls (37) (37) are formed inside the output gears (36) (36), and at the outside of the output gears (36) (36). The wheel groove (39) (39) is formed, and the brake (41) is formed inside the mission case (20) facing the outer end faces (40) (40) of the output gears (36) (36). ) (41) are fixed to form the left and right side brakes (42) (42), and the shift horns (43) (43) are fitted in the wheel grooves (39) (39) of the output gears (36) (36). ) Are engaged respectively.

Therefore, when describing the main part of the present invention with reference to FIG. 1 and FIG. 2, (44) is a guide groove (46) for guiding the main shift lever (45) provided in the control part (7). ) Is formed, and (47) is a forward / reverse switching actuating member, and when the main gearshift lever (45) is swung around the shaft (48) as a fulcrum, the swinging action is performed. The shift fork (52) is operated via the arm (49), the wire (50) and the arm (51) to switch the forward / reverse clutch unit (30), and the forward / reverse switching operation member ( An elongate hole (53) in the front-rear direction is provided in 47), and the main shift lever (45) is inserted into the guide groove (46) and the elongate hole (53), and one shaft (54) is inserted. The arm (55) is moved up and down by using this shaft (54) as a fulcrum by the front and rear operation as a fulcrum. Since the tip of the arm (55) and the speed change cam (27) are interlocked by the connecting rod (56), the speed change cam (27) operates to operate the belt speed change transmission mechanism (28) and the planet. The height is adjusted by the gear mechanism (29), and the forward / reverse switching operation member (47) is oscillated to the left or right by an operation to the left or right with the other shaft (57) as a fulcrum. There is.

Therefore, the rotary power from the engine (9) drives the input shaft (22) via the input pulley (26) to move the main shift lever (45) to the forward side of the guide groove (46). Therefore, when moving forward and backward, the forward speed of the aircraft is changed to high and low, the aircraft stops at the neutral position, and when the vehicle is switched to the reverse side at the neutral position, the reverse speed is adjusted.

A cylinder (58) is integrally connected to the front end of the operation panel (44), and a shaft (59) of the control motor (M) is connected to the front end of the cylinder (58). It is possible to move back and forth in a horizontal state by screwing the control motor (M) forward and backward. Reference numeral (60) is a stopper fixedly provided at the rearward movement limit position of the operation panel (44).

A load detecting device (1) for detecting a rotating torque is attached to an outer end portion of the mowing single shaft (18) in the mowing input case (17), and the load detecting device (1) and the load detecting device (1) are connected to each other. The load protection device (61) and the control motor (M) are electrically connected to each other, and the overload protection device (61) is preliminarily input with a load having an allowable limit value. When the load detection signal sent by the detection of (1) exceeds the allowable limit value input in advance, a command is issued from the overload protection device (61) to the control motor (M) to rotate it normally. The operation panel (44) is moved to the front side through the tubular body (58). Below the allowable limit, the operation panel (44) is on the rear side and is in contact with the stopper (60). Of.

That is, the control motor (M) is operated by rotating the control motor (M) forward for a certain period of time with an allowable limit torque Bkgf · m at which the rotational torque detected by the load detection device (1) does not rise to a dangerous torque of, for example, Akgf · m. When the panel (44) is moved to the front side and the rotation torque decreases from Bkgf · m to Ckgf · m, the control motor (M) is reversed and the operation panel (44) is contacted with the stopper (60). It is restored to hit.

As a result, the main shift lever (45) is operated rearward on the forward side of the guide groove (46) of the operation panel (44) to be attached to the mowing single shaft (18) during the mowing threshing work. When the load detection device (1) detects Bkgf · m, the overload protection device (61) issues a command to the control motor (M) to rotate the control panel (44) in the normal direction. The main shift lever (45) pivots forward around the shaft (54) as a fulcrum so that the traveling speed of the traveling crawler (3) is reduced to a lower speed. If the cutting amount is reduced to reduce the load, and if the cutting amount is reduced to Ckgf · m, the control motor (M) reverses and the operation panel (44) contacts the stopper (60). Return to hit.

A push button switch (62) is provided on the grip of the main shift lever (45), and the switch (62) and the overload protection device (61) are operated by a manual priority circuit (63). By connecting the switch and pressing the switch (62), the command to the control motor (M) is cut off.

Although the load detecting device (1) of the embodiment according to the present invention has been described as being mounted on the mowing shaft 1 (18), the rotary shaft of the mowing main case (19) or the mowing and conveying device Any part of each shaft of the part (B) may be mounted on each shaft, and the point is that it constitutes the cutting and conveying part (B) which is a pre-process of the threshing part (A).

[0020]

[Effect of the device]

 The combine with vehicle speed control device according to the present invention is provided with a load detection device (1) in the cutting and conveying section (B) which is a pre-process of the threshing section (A) which constitutes the combine, and the load detection signal of the apparatus (1) is provided. Based on the configuration, the traveling speed can be controlled via the continuously variable transmission mechanism (2), and the traveling speed is automatically controlled to the low speed side when a high load is detected. A high load is detected and the vehicle speed is made to correspond to this to reduce the amount of grain culm supplied to the mowing and conveying section (B), and it is impossible to operate the mowing and conveying section (B) and the threshing section (A) in the subsequent process. Since the work is smoothly performed without giving the damage, it is possible to avoid the damage of the cutting and conveying section (B) and eliminate the clogging in the subsequent process.

[Brief description of drawings]

FIG. 1 is an explanatory view of a main part of the present invention.

FIG. 2 is a plan view showing an operation panel section.

FIG. 3 is a speed change transmission system diagram of a mission case.

FIG. 4 is a side view showing an outline of the entire combine.

FIG. 5 is a side view of a reaping and conveying section.

[Explanation of symbols]

 A threshing section B reaping transport section 1 load detection device 2 continuously variable transmission mechanism

Claims (1)

[Scope of utility model registration request] 1. A load detecting device (1) is provided in a cutting and conveying section (B) which is a preceding step of a threshing section (A) constituting a combine, and a continuously variable transmission mechanism is provided based on a load detection signal of the apparatus (1). A combine with a vehicle speed control device that enables the traveling speed to be controlled via (2) and automatically controls the traveling speed to a low speed side when a high load is detected.