JPS584761Y2 - Power shift type traveling drive device in combine harvester - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a power shift type traveling drive device for a combine harvester.

In other words, by pressing the button on the combine that is configured to drive both driving wheels of both crawlers through a power shift mission, and using the control levers on both sides to power shift (respectively), the left and right crawlers can be shifted in four steps and the side clutches can be operated, allowing the aircraft to turn. In this case, the crawler on the inside of the turn can be rotated a little without completely applying the side clutch, and the crawler on the outside of the turn can be turned smoothly without slipping, ensuring good turning performance even in wet fields. It is provided so that they can demonstrate their abilities.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a side view of the combine, with crawlers 1 on both sides,
A threshing device 9 is mounted above 1', a reaping and conveying device 10 is installed in front of the device 9, and a control tube 11 is installed in front of the seat on the front part of the machine that hangs on the right side. Configure.

Further, both side crawlers 1, 1' are attached to drive wheels 2.71, button wheels 13, 13' and idlers 14, 14' supported by respective track frames 12, 12'.

A is a transmission case of a power shift transmission type, and drive wheels 2, 2"e and fixed drive shafts 3 and 3' are respectively installed on both sides of the lower part of the transmission case, and the transmission case above the drive shafts 2 and 2' is The shafts 4, 4' and the drive shaft 3.3' are transmission connected through transmission wheel engagements 15, 15', respectively, and hand brakes 5, 5''e are respectively installed at the ends of the transmission shafts: Cv.

In addition, a high-speed transmission wheel 1σ is installed on both drive shafts 4:4'.

16 buttons and low-speed transmission wheels 16a and 16a' are fitted and fixed, respectively, and transmission wheels 17 and 1 are respectively fitted to intermediate shafts 6 and 6' installed above the transmission of both transmission shafts 4 and 4'.
7' is installed, and the intermediate shaft 6 is equipped with hydraulic clutch type transmission wheels 7a and 7a that can freely engage with the high speed transmission wheel 16 and the low speed transmission wheel 16a, and the other intermediate shaft 6 Similarly, hydraulic clutch type transmission wheels 7' and 7a' which can freely mesh with the high and low speed transmission wheels 16' and 16a' are fully installed in the transmission wheels 7' and 7a', respectively.

Input pulley 1 installed at the top of mission case A
8, transmission is made from the engine side, and the input shaft 19 of the input pulley 18 is connected to the transmission wheel 17.17't.
The transmission path includes transmission gears 20.20', 1st speed, 2nd speed,
Hydraulic clutches for 3rd gear and reverse F1, F2, F
3, Rf: Each is installed and configured in a power shift type.

The control tube 11 is equipped with operating levers 8, 8' that serve as side clutches and brakes for the left and right crawlers 1, 1', but both operating levers 8, 8' are independently set to high-speed transmission positions. The first switches S1, S1' are in the position for low-speed transmission, and the second switch S2 is in the low-speed transmission position. S2; Third switch S3, which is the brake application position. S3' is enabled to operate the switch, and as shown in FIG.
' side switches are connected to the battery 21 button and the solenoid valve switch 22°22', and the first switch 81.
31', the hydraulic clutch type transmission wheel 7. T'
the second switch S2. In addition, the third switches S3, S are operated so that the hydraulic clutch type transmission wheels 7a, 7a' are operated when S2''e is activated.
3'' is activated, both clutches are disengaged and only the hydraulic side brakes 5, 5' are operated.

Further, as shown in FIG. 2, both operating levers 8, 8' are provided with a neutral position in which all of the respective side clutches are disengaged when released from each switch.

When the side clutches of both crawlers 1 and 1' are disengaged, both operating levers 8
, 8" can be operated by disabling each switch.

When the aircraft is to move straight, both operating levers 8°8' are operated so as to contact the first switches S1, 81', and the hydraulic clutch type transmission wheels 7, 7' are activated by the high-speed transmission wheels 16.
．． 16', the left and right drive wheels 2, 2 are connected to each other for transmission.
' has the same rotational speed, both crawlers 1 and 1''r are driven, and the aircraft moves straight.

In addition, when turning the aircraft to the right, use the right control lever 8.
When the third switch S3 is activated, the right side handbrake 5' is activated and the aircraft makes a sharp turn.
In the case of a left turn, move the operating lever 8 to the third switch S3.
When the transmission is applied, the left side brake 5 is activated and the body turns to the left.

If you want to turn the aircraft to the right while in a wet field, put the left operating lever 8 into the first switch S1 to connect the hydraulic clutch type transmission wheel 7 to the high-speed transmission wheel 16, and then turn the right operating lever 8 to the first switch S1. When the second switch S2' is turned on and the hydraulic clutch transmission wheel 7a'' is connected to the low speed transmission wheel 16a', the left drive wheel 2 rotates at high speed and the right drive wheel 1 rotates at low speed. As a result, the right crawler 1' can turn to the right without slipping.

Conversely, when turning left, the left operating lever 8 is set to the first switch S1, and the right operating lever 8' is set to the second switch S2'.
, the right drive wheel τ is at high speed and the left drive wheel 2 is at high speed.
becomes low speed, and the left crawler 1 can turn left without slipping.

In this way, the present invention provides a combine harvester configured to drive both driving wheels 2, 2' of both crawlers 1, 1', respectively, by a power shift mission.
Hydraulic side brakes 5° and 5' are respectively installed on both drive shafts 4 and 4' which are above the transmission of power from both of the drive wheels 3 and 3'. axis 6
．． Next, there is a hydraulic crank 7 with two high and low speeds on both shafts 4 and 4'.
Tsuchi type transmission connection? , 7a.

7', 7a"Th are installed so that transmission can be selectively connected, and both operating levers 8.8" for independently operating the left and right transmission threads are provided. The power shift mission In addition to the gear shifting, the operating levers 8 and 8' on both sides independently actuate the hydraulic non-transmission brakes, allowing the left and right crawlers 1 and 1"e to operate the side clutch and brake, which also serves as gear shifting transmission. It is possible to completely disengage both side clutches, or disengage both side clutches and apply the left and right side brakes smoothly using a single lever for the left and right hooks, and even when turning the aircraft, you can press the button. 1. Even in wet fields, the crawler on the inner side of the turn can be rotated a little to ensure that the crawler is able to turn smoothly without slipping, and it has the characteristics of being able to reliably exhibit turning performance.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the compine, FIG. 2 is a mechanical explanatory diagram of a portion of both operating levers, and FIG. 3 is a mechanical diagram of the inside of the transmission case. 1.1'...Crawler, 2,2'...Drive wheel, 3,
3'... Drive wheel, 4.4'... Transmission wheel, 5.5'...
...Handbrake, 6,6'...Intermediate shaft, 7,7a
, 7', 7a'...Hydraulic clutch type transmission wheel, 8, 8'
...Operation lever.

Claims (1)

[Scope of utility model registration request] A combine harvester configured to drive both driving wheels 2, 2' of both crawlers 1°1' which are connected to a power shift mission, respectively, has both driving shafts 2. '2' both moving shafts 3
, 3' are equipped with hydraulic handbrakes S and St respectively on the two value drive shafts 4, 4' which are higher in transmission than the two value drive shafts 4, 4'.
A hydraulic clutch type transmission wheel 7 with two high and low speeds is attached to both drive shafts 4, 4' on the rain intermediate shafts 6, 6' in the upper transmission position, respectively.
, 7a1'7'' and 7a'e are installed so that they can be selectively connected for transmission, and both operation levers 8 and 8''k are provided to independently operate the left and right transmission threads, and the two operation levers 8,8
' are independently provided with a two-to-toral position, a high-speed transmission position, a low-speed transmission position, and a brake operation position, so that the transmission and non-transmission brakes on the left and right sides can be operated independently using both operation levers. A power shift type traveling drive device.