JPS60244221A - Power transmission of combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a power transmission device for a combine harvester. It mainly relates to a power transmission device for a screw type threshing machine.

BACKGROUND OF THE INVENTION In general, a combine harvester has a traveling device, a threshing device, a reaping device, and a sorting device, and these are driven by one engine via a transmission mechanism. And more power must be transmitted to the running part than to other parts.

In addition, the screw-type threshing machine expands the diameter of the screw auger, which is originally used to transport grain in the axial direction, and gives it a predetermined rotational speed, allowing the screw blades to maintain the circumferential speed necessary for the crops. Therefore, in addition to the function of transporting crops, it also has a threshing function, and the gutter part of the screw auger is replaced with a catch net of an appropriate size to give it a sorting function. A large amount of power is required not only to rotate the screw auger, but also to rotate the screw auger.

The problem that the present invention aims to solve is that in conventional transmission mechanisms, strong shafts are simply used at random locations where the transmission force is large, without taking the above circumstances into account. Therefore, there was a lot of waste and the weight was large.

Means for Solving the Problems An object of the present invention is to eliminate waste as in the prior art and to reduce weight.

To achieve this goal, the transmission shafts that transmit large amounts of power were concentrated near the engine's output shaft.

Effects of the Invention With the above configuration, a large amount of power is transmitted from the engine side, and the power becomes smaller toward the end, eliminating waste in parts other than the shaft that is concentrated near the output shaft of the engine, making it possible to reduce weight. can.

Furthermore, by concentrating the shafts that transmit large amounts of power, components such as pulleys, bearings, etc. related to the shafts are also concentrated, and simplification can be achieved.

Example An embodiment of the present invention described above will be described based on the drawings.

First, referring to Fig. 2, the axial screw type threshing device (A)
and the sorting device (C) and the crawler (19) of the traveling device (D).
The entire combine harvester, which is mounted on top and equipped with a reaping device (B) at the front, will be explained.

Grain is raked in by a raking reel (1) and cut by a cutting blade (2), and the cut crops are transferred from a raking auger (3) to a chain conveyor (5) in a feeder house (4) to a handling room (6). ), the grain is threshed by a complete screw handling cylinder (7), and transferred to the next sorting device (C). That is, the threshed grains fall from the fertilization (8) to the sorting auger (9), and are moved toward the terminal end by the rotating auger (9).

During this conveyance process, grains and fine straw waste leak downward from the receiving net (10) stretched over the receiving gutter of the auger (9), and only the long straw is carried toward the dust outlet (11).

Leakage including grains that have fallen from the receiving net (10) is transferred by a belt conveyor (25), and the grains are sent to the No. 1 gutter (13) after being subjected to sorting air by a winnow-like blower fan (12). , the second object falls into the second gutter (14). No. 1 gutter (13)
The grains that have fallen are transported from the horizontal conveyor (13a) to the grain frying conveyor (16) to the paddy tank (17), and the second grain is transported from the horizontal conveyor (14a) to the second reduction conveyor (18) to the handling room. It is designed to be reduced to

(19) is a crawler equipped with a threshing device; (20) is a crawler equipped with a threshing device;
) is the drive wheel, (21) is the transmission case, (22
) is the engine installed at the rear of the aircraft, and (23) is the cockpit.

The present invention is a power transmission device for a combine harvester as described below, for example. This will be explained below with reference to FIG. In the figure, the same parts as in the previous explanation are given the same reference numerals.

This device consists of an engine (22), a traveling system (D''), a reaping system (B'), a sorting system (C''), and a threshing system (8).

In the traveling system (D'), (30) is the driving shaft. Driving shaft (
30) is arranged parallel to the output shaft (26) of the engine (22), and is rotated from the engine pulley (27) via the heald (28) and the pulley (31).

[The torque of the JJ axis (30) is transmitted from the universal joint l- (33) to the missillon (21) via the transmission (34) and rotates the drive wheel (20) of the crawler. (35) is the transmission (34
), (36) is its output shaft, and (37) is the input shaft of the mission case (21).

The output shaft (36) of the transmission and the input shaft (37) of the transmission case each have a plurality of pulleys (36”) (
37'>(36'')(37''), and power is transmitted through these. (39) is a clutch interposed on the input shaft (37) of the transmission.

For the reaping system (B'), sorting system (C'), and threshing system (A''), (40) is a common driving shaft.

The driving shaft (40) is similar to the driving shaft (30) of the traveling system.
It is arranged parallel to the output shaft (26) of the engine, and is connected to the belt (
41), rotation is transmitted via the pulley (42). However, a threshing clutch (43) is interposed between the pulleys (32) and (42).

First, the threshing system (8) will be explained. The screw set handling cylinder (7) is rotated via a pulley (44) of a driving shaft (40), a belt (45), and a pulley (46). The pulleys (44) and (46) are simply three-stage pulleys, and power is transmitted through three healds (45).

Next, to explain the reaping system (B') and the sorting system (C''), the torque of the driving shaft (40) is transmitted from the universal joint (47) through the bevel gear (48) to the pulley (4).
9) Transmitted to (50).

(49) is the reaping system (B) pulley, (50)
is the pulley of the sorting system (C).

The torque of the pulley (49) is transmitted to the drive shaft (5) of the chain conveyor (5) via the belt (51) and the pulley (55).
52) to rotate its sprocket (53). In addition, (54) is a pulley (49) and (55
).

It's Sochi. Further, (62) is a sub-cutting blade, which is arranged behind the cutting blade (2), and is used to align the height of the base of the stock cut by the cutting blade (2). .

The sub cutting blade (62) is connected to the sprocket (6) via the chain (64) from the sprocket of the drive shaft (52).
5) rotates, and the rotation of the eccentric shaft (66) fixed to this sprocket (65) causes the link (68) to swing, thereby reciprocating as shown by the arrow (59).

On the other hand, the sprocket (70) provided on the drive shaft (52) is related to the reaping section. That is, sprocket (7
The torque of 0) is transmitted to the drive shaft (72) of the reaping section via the chain (71).

The torque of the sprocket l-(73) of the drive shaft (72) is:
Chain (74) to sprocket (75) (76)
, chain (77), and sprocket (78) to rotate the scraping reel (1).

On the other hand, the torque of the sprocket (80) of the drive shaft (72) is transmitted to the cutting blade (2) and the raking auger (
3) is transmitted to the drive shaft (82).

The cutting blade (2) is an eccentric member (
83), it is made to reciprocate as shown by the arrow (84).

The scraping auger (3) is attached to the sprocket (
85) to chain (86), sprocket no) (8
7).

Next, to explain the sorting system (C), the torque of the aforementioned pulley (50) is determined by the chain (90), the pulley (
91) to the drive shaft (92).

The sorting auger (9) is connected from the pulley (93) of the drive shaft (92) to the belt (94) and pulley (95), respectively.
, bevel gear (96), sprocket (97) and chain (98).

The blower fan (12) is connected to the pulley of the drive shaft (92) (
99), a belt (100), and a pulley (101).

The horizontal feed conveyor (13a) of the No. 1 gutter is connected to the drive shaft (92
), its shaft (105) is rotated via the belt (103) and pulley (104), and the grain frying conveyor is rotated by a sprocket (106'') provided at the end of the shaft (105). (16) is driven.

The cross feed conveyor (14a) of the second gutter runs from the sprocket throat (107) of the cross feed reconveyor (105) of the first gutter to the chain (108), sprocket (109), transmission shaft (110), sprocket throat ( The shaft (114) is rotated via a chain (111''), a chain (112''), and a sprocket (113), and the thrower cylinder (18) is driven by a sprocket (115) at the end of the shaft.

The belt conveyor (25) moves from the gear (117) of the transmission shaft (110) to the gear (119) of the transmission shaft (118).
, sprocket (120), chain (121), and sprocket (122).

As is clear from the above explanation, the parts that transmit the most power in this device are the drive shaft (30) of the traveling system, the threshing
This is the driving shaft (40) for reaping and sorting.

The driving shaft (30) is used not only for the traveling system but also for the driving shaft (40).
The driving shaft (40) is a common driving force for the threshing, reaping, and sorting systems, so it generates a large amount of power. Therefore, the driving shaft (30) and ( 40) shall be strong. On the other hand, parts other than this need only have relatively low strength, thereby reducing weight.

In addition, the driving shafts (30) and (40) are made strong, and each has two or more power transmission functions, that is, the driving shafts (30) and (40) are made strong.
0), the transmission power of the traveling system and the transmission power to the driving shaft (40) are shared, and the transmission power for threshing, reaping, and sorting is shared by the driving shaft (40), which simplifies the structure. is planned.

Furthermore, since the drive shafts (30) and (40) are separate systems and are only connected by a belt (41), even if an overload occurs on either of them, they are unlikely to be affected by each other. The same goes for the fact that the reaping system drive shaft (52) and the sorting system drive shaft (92) are separate systems.

[Brief explanation of drawings]

FIG. 1 is a transmission mechanism of the device of the present invention. FIGS. 2 and 3 are schematic front and plan views showing an example of a conveyor combine to which the device of the present invention is applied. FIG. 4 is a cross-sectional view of the threshing section in the left-right direction. (A) ... Threshing device (B) ... Reaping device (C) ... Sorting device (D) ... Traveling device (22) ... Engine (26) ...・Engine output shaft

Claims (1)

[Claims] In a combine transmission mechanism that is equipped with a traveling device, a threshing device, a reaping device, a sorting device, and an engine that drives them, a combine in which the shaft that transmits large power among the transmission shafts is centrally arranged near the output shaft of the engine. power transmission device.