JP3360188B2 - Moving agricultural machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile agricultural machine, such as a rice transplanter, which is equipped with a seedling table and planting claws to continuously perform seedling planting.

[0002]

Conventionally, as shown in Japanese Unexamined Utility Model Publication No. 63-150146, and the continuously variable belt transmission casing comprising a fixed pulley and a movable pulley, <br/> formic burnt over scan for inputting the speed change output of the speed-change case There was a technology to provide.

[0003]

In the prior art, the upper surface of the belt transmission case projects above the upper surface of the vehicle body frame, and the belt transmission case is disposed below the transmission shaft between the gear transmission case and the front axle case. Since the lower surface is protruded, the lower surface of the belt transmission case directly collides with, for example, a road shoulder of an agricultural road when entering or exiting a field, or an end portion of a truck carrier when loading or unloading on a transport truck, and is easily damaged. In addition, there has been a problem that the shape of the belt transmission case and the extending position of the transmission shaft are mutually restricted.

[0004]

SUMMARY OF THE INVENTION The present invention provides a continuously variable belt transmission case for transmitting the driving force of an engine,
In a mobile agricultural machine that has front and rear gear cases for power,
The clutch to be connected to the output shaft of the
The clutch case to be mounted is integrated with the front of one side of the gear case
Formed on the front of the clutch case.
The rear surface of one side of the case,
A hydraulic pump is installed on the rear side of the
Of the more downward the upper surface intended for placement of each case, click
The latch case is integrally formed on the front of one side of the gear case.
One side of the continuously variable transmission case on the front of the clutch case
Since the rear surface is fixed, a stepless belt is
Open the clutch case by separating the shifting case.
Release, allowing maintenance of the clutch in the clutch case.
The gears are located on the rear side of the continuously variable belt speed change case.
The cases can be detachably connected. For example, the transmission gear
Compared to a structure in which a clutch is installed inside a gear or gear case.
Besides, without disassembling the case, the clutch maintainer
Can be performed. Also, after the other side of the continuously variable belt transmission case
Since a hydraulic pump is provided on the surface,
Hydraulic pumps are distributed by utilizing extra space between gear cases.
High speed output of the input shaft of the continuously variable belt transmission case.
It can be transmitted to a hydraulic pump. Also, the gear case is
Outside of a continuously variable belt transmission case formed into an upright box-shaped structure
The hydraulic pump and clutch case can be connected to
The inside of the continuously variable belt transmission case
This can prevent the temperature of the section from rising. In addition,
Place each of the cases below this top surface between the arms.
Therefore, the body structure on the top
It can be achieved .

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a body frame portion, FIG. 2 is a side view of a riding rice transplanter, and FIG. 3 is a plan view of the same, where (1) is a traveling vehicle on which an operator rides, and an engine (2) is mounted. Gear shift case (4) mounted above the front of the body frame (3)
A paddle traveling front wheel (6) is supported forwardly via a front axle case (5), and a rear axle case (7) is connected to a rear portion of the gear transmission case (4), and is connected to the rear axle case (7). The paddy field running rear wheel (8) is supported. A spare seedling mount (10) is mounted on both sides of the hood (9) covering the engine (2) and the like, and the gear shift case (4) is mounted by a body cover (12) on which an operator rides through step (11). ), And a driver's seat (13) is mounted above the vehicle body cover (12), and a steering handle (14) is provided in front of the driver's seat (13) and at the rear of the hood (9).

[0006] In the figure, reference numeral (15) denotes a planting portion provided with a seedling mounting table (16) for six-row planting and a plurality of planting claws (17). Forward tilting seedling platform (1
6) is supported on a planting case (20) via a lower rail (18) and a guide rail (19) so as to be reciprocally slidable right and left, and a rotary case (21) is rotated at a constant speed in one direction. A pair of claw cases (22) and (22) are supported at the case (20) and symmetrically positioned around the rotation axis of the case (21), and the claw case (22) is provided.
(22) Attach the planting claws (17) and (17) to the tip. A supporting frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and a three-point link mechanism (27) including a top link (25) and a lower link (26) is provided. Lifting cylinder (28) for connecting the support frame (24) to the rear side of the traveling vehicle (1) and raising and lowering the planting section (15) via the link mechanism (27)
To the lower link (26), and the front and rear wheels (6)
(8) is driven to move and at the same time, a seedling for one plant is planted from the seedling mounting table (16) which is reciprocally slid left and right.
7), the seedlings are continuously planted.

[0007] In the figure, (29) is the main shift lever, (3)
0) is a sub-shift lever for planting elevating and working travel shifting, and (3)
1) is a planting sensitivity adjusting lever, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals, (3)
4) is a center float for two-row equalization, (35) is a side float for two-row equalization, and (36) is a side-row fertilizer for six rows.

Further, as shown in FIGS. 4, 5, 6, 7 and 8, a horizontal frame (3) is provided on the front upper surface of the vehicle body frame (3) which is inclined to a low front and rear height (inclination angle of about 4 degrees). 37), and an engine mount (39) is attached to the upper surface of the horizontal mount (37), which is substantially horizontal in the front-rear direction, via a vibration-proof rubber (38), and the engine (2) is mounted on the engine mount (39). And a fuel tank (40) above the engine (2).
A muffler (41) is mounted in front of the engine (2), and a battery (43) is mounted on the front end side of the vehicle body frame (3) via a front frame (42).

Further, a case base (43) is integrally fixed to the body frame (3), a steering case (44) is attached to the case base (43), and a steering handle (14) is inserted into the cylinder (45). ) Steering shaft (46)
The output shaft (47) is projected from the lower surface of the steering case (44) at the substantially center between the left and right body frames (3) and (3), and the output shaft (47) is projected from the lower surface of the steering case (44). The steering arm (4) that turns the 6)
8) is attached to the output shaft (47).

The left and right body frames (3), (3) substantially immediately below the engine (2) and near the left body frame (3).
In between, a counter bearing cylinder (49) is fixed substantially horizontally in the front-rear direction, the receiving cylinder (49) cantileverly supports the front side of the counter shaft (50), and the counter pulley is mounted on the rear end side of the counter shaft (50). (51) and an alternator (52) is fixed to the right body frame (3) on the left side of the cylinder (45), and the alternator (52) is mounted on the rear surface of the engine (2).
The left and right body frames (3)
(3) The output shaft (5) of the engine (2)
3), an output pulley (54) is attached to the output shaft (53), and the output pulley (54) is connected to the counter pulley (51) via V-belts (55) and (55). (52) Input pulley (56)
The output pulley (54) is connected via a V-belt (57).

Further, a lower link fulcrum shaft (58) is provided at the rear end of the vehicle body frame (3), the front end of the lower link (26) is attached to the fulcrum shaft (58), and the left and right vehicle body frames (3) ( 3) Gate-shaped support (59) between rear ends
And the front end of the top link (25) is attached to the upper end of the column (59) via the top link fulcrum shaft (60).

A pedal fulcrum pipe (62) for providing a fulcrum shaft (61) for the brake pedal (33);
The pipe (62) is attached to the left and right body frames (3) and (3).
And the both ends of the pipe (62) are welded and fixed to the body frame (3), and the left and right body frames (3) and (3)
The pipe (62) is attached as a connecting member to the driver seat frame (6) for supporting the driver seat (13).
3) and a left and right sub-frame (64) (64) for mounting the elevating cylinder (28), and a front end of the sub-frame (64) which is obliquely inclined at a low front and rear high is welded and fixed to the pedal fulcrum pipe (62); The rear end of the sub-frame (64) is welded and fixed to the upper end of the column (59).

Further, as shown in FIGS. 2, 3, 4, 5, and 7, a pre-step (65) and a post-step (66)
And the body cover (12) by a rear cover (67).
Is formed so as to be separable into three parts, the rear cover (67) is removed, and the fertilizer applicator (36) is mounted on the part. The tank (68) for containing fertilizer, the feeding part ( 69), the fertilizer (36) is provided with a blower fan (72) for discharging fertilizer through a delivery pipe (71) to the side-strip fertilizer chute (70) of the floats (34) and (35);
A machine base (74) is attached to the upper side of the column (59) so as to be able to move up and down via a telescopic gas spring rod (73), and a fertilizer applicator (36) is fixed on the machine base (74).
The machine stand (74) is supported by the fixed rod (75) at the lowered position, and the fertilizer applicator (36) is arranged behind the driver's seat (13).

Further, as shown in FIG. 7, a bracket (77) of the rear axle case (7) is bolted and fixed to a stay (76) on the lower surface of the rear end of the body frame (3).
The rear surface of the gear transmission case (4) is connected and fixed to the front surface of the rear axle case (7), and the clutch case (78) is integrally formed on the right front surface of the gear transmission case (4). The right side of the belt transmission case (79) is connected and fixed, and the hydraulic pump (80) for operating the elevating cylinder (28) is fixed to the left rear side of the belt transmission case (79). Left and right side body frame (3)
A bolt (81) is fixed to (3) and the front surface of the belt transmission case (79) is fixed to the bracket (82) of the pedal fulcrum pipe (62) by bolts (83). (3) Each of the cases (4) and (78) at a position lower than the upper surface between (3) and (3).
(79) and hydraulic pump (80) with bolts (81) (8)
It is suspended and fixed by 3).

Further, as shown in FIG. 8, an input / output pulley (84) for changing the speed ratio continuously by changing the winding diameter.
(85) and V-belt (86) in the belt shift case (7
9) and universal joints (87) (8)
7), the front end of the input shaft (89) of the belt transmission case (79) is connected to the counter shaft (5) through a transmission shaft (88) having the same.
0) The hydraulic pump (80) is directly connected to the rear end of the input shaft (89), and the clutch pedal (3) is connected to the rear end of the input shaft (89).
Multi-disc friction type dry clutch (9)
0) is provided inside the clutch case (78), and the output shaft (91) of the belt transmission case (79) is connected to the input shaft (92) of the gear transmission case (4) via the clutch (90). I have.

As is clear from the above, the engine (2)
Belt transmission case (79) that transmits the driving force of
In front of the gear shift case (4), which is a gear case for row output
In a mobile agricultural machine installed later, a continuously variable belt transmission case
The clutch (9) connected to the output shaft (91) of (79)
0) with the clutch case (78)
The clutch case is integrally formed on one side front surface of the case (4).
Of the continuously variable belt transmission case (79)
The rear side is fixed, and the continuously variable belt transmission case (79)
Hydraulic pump (80) is provided on the rear side,
Each of the cases (4) below (3) below this upper surface.
(78) (79) is arranged. And the clutch case
Gear (78) is integrated with the front side of the gear transmission case (4).
Form, continuously variable belt on the front of the class Tchikesu (78)
Fix the rear surface of one side of the speed change case (79), and
The stepless belt transmission case (79) is separated from the base (4).
Release the clutch case (78) to release it.
Of the clutch (90) of the clutch case (78).
A continuously variable belt transmission case with a structure that allows easy maintenance
(79) A gear transmission case (4) is connected to the rear side
Tie. For example, the transmission case (79) or the gear
Structure in which a clutch (90) is provided inside a transmission case (4).
Without disassembling the cases (79) and (4)
Maintenance of the clutch (90) can be performed. Also, stepless
A hydraulic pump (8) is provided on the other rear side of the belt speed change case (79).
0), a continuously variable belt transmission case (79) and a gear transmission
Hydraulic pump using extra space between cases (4)
(80) is arranged and the continuously variable belt transmission case (79)
High rotation output of input shaft (89) is transmitted to hydraulic pump (80).
Reach. It is also independent of the gear shift case (4).
Of the continuously variable belt transmission case (79)
Hydraulic pump (80) and clutch case (78) on the outside
Connected, for example, by the frictional heat of the clutch (90).
The internal temperature of the continuously variable belt transmission case (79) rises
To prevent Also, between the left and right body frames (3)
Each case (4), (78), (79) below the upper surface of the case
And arrange the fuselage structure on the top side of the body frame (3).
Make it simple.

A traveling output shaft (94) is connected to the input shaft (92) via a traveling transmission gear mechanism (93).
Front and rear axles (95) (9) supporting front and rear wheels (6) and (8)
The traveling output shaft (94) is connected to the front and rear wheel transmission shafts (97) and (98) to drive the front and rear wheels (6) and (8), and the PTO transmission gear is connected to the input shaft (92). The PTO shaft (100) is connected via the mechanism (99), and the PT
The planting part (15) is driven via the O-shaft (100), and the output of the PTO shaft (100) is branched by the sprocket (101) near the transmission case (4) to feed out the fertilizer (36). 69).

Further, as shown in FIGS. 9 and 10, the side surface of the gear transmission case (4) is fixedly fastened to the bracket (102) of the body frame (3) by bolts (81), and the pulleys (84) (85) are fixed. ), The speed change shaft (103) for changing the winding diameter of the belt (86) is connected to the belt speed change case (7).
9), the transmission shaft (103) is connected to the auxiliary transmission lever (30), and an intake filter (104) is attached to the rear end opening of the right body frame (3). Between the right side of the case (79) and the right body frame (3), and between the left side of the belt transmission case (79) and the left body frame (3), joint pipe bodies (105) and (106) made of elastic synthetic rubber. ) (107)
And the input / output pulleys (84) and (85) are integrally formed with the blowing blades (108). Then, ventilation holes (113) are formed in a partition wall (112) on the rear surface of the belt transmission case (79) for closing the clutch case (78) surface side.
And the inside of the clutch case (78) and the inside of the belt transmission case (79) communicate with each other through the ventilation holes (113)... And the blade (108) for blowing air of the output pulley (85).
A ventilation hole (113) is made to approach and approach the shaft core suction side of the shaft, and the air inside the clutch case (78) is discharged from the ventilation hole (113) by the suction force of the blade (108) of the pulley (85). ) Side, and the air inside the belt transmission case (79) is forcibly discharged into the hollow portion of the left body frame (3) by the blade (108) of the input pulley (84). On the other hand, the rear end opening of the left body frame (3) is connected to the intake port (110) of the blower fan (72) driven by the electric motor (109) by the exhaust duct (111). Belt transmission case (7
9) In the mobile agricultural machine provided with 9), the suction side of the blower fan (72) is connected to the inside of the belt transmission case (79) via the hollow inside of the body frame (3), and the body frame (3) is used as a ventilation duct. The belt speed change case (79) is also used to cool the belt, to improve the durability of the belt (86) and the like, and to dry and exhaust air from the blower fan (72) for feeding fertilizer of the fertilizer applicator (36). The feed pipe (71) and the fertilizer chute (70) are dried while the fertilizer is being sent by the blower of the fan (72), and the fertilizer is clogged with the pipe (71) and the chute (70). It is configured to prevent it.

Further, as is apparent from FIG. 1 and the like, a continuously variable belt transmission case (79) for transmitting the output of the engine (2) and a gear transmission case (4) for outputting the driving force to the axles (95) and (96). ), A hydraulic pump (80) and a clutch case (78) for interrupting the output of the engine (2).
In the mobile agricultural machine provided with the gear shift case (4),
At a position lower than the upper surface of the pair of left and right body frames (3) and (3) and higher than the transmission shaft (97) between the gear transmission case (4) and the front axle case (5). A transmission case (79), a hydraulic pump (80), and a clutch case (78) are provided. The upper surface side of the body frame (3) of the belt transmission case (79) mounting portion is formed flat, and the vehicle body frame ( 3) The lifting cylinder (28) on the upper surface side and each lever (29) (30) (3)
1) The transmission shaft (97) prevents the lower surface of the belt speed change case (79) from directly colliding with the shoulder of an agricultural road or the end of a transport truck bed, etc., while simplifying the body structure such as the mounting portion. It is composed.

[0020]

As is apparent from the above embodiments, the present invention provides a continuously variable belt transmission for transmitting the driving force of the engine (2).
Back and forth (79) and the gear case (4) for running output
In the mobile agricultural machine provided in the
9) The clutch (90) to be connected to the output shaft (91)
Gear case (4) with clutch case (78) to be installed inside
The clutch case (78) is integrally formed on the front surface of one side of the clutch case (78).
Of the continuously variable belt transmission case (79)
Oil on the other rear side of the continuously variable belt transmission case (79).
A pressure pump (80) is provided between the left and right body frames (3).
The case (4) (78) (7)
9) in the one which placed, formic the clutch case (78)
The clutch (4) is integrally formed on one side front surface of the case (4).
Continuously variable belt transmission case (79) on the front of case (78)
To fix the gear case (4)
To separate the continuously variable belt transmission case (79).
The clutch case (78) can be opened and the clutch case
Easy maintenance of (78) clutch (90)
Gears on the rear side of the continuously variable belt transmission case (79).
The case (4) can be detachably connected. For example,
Clutch in transmission case (79) or gear case (4)
The case (79) is compared with the structure in which the (90) is installed.
(4) Maintainer of clutch (90) without disassembling
Can be performed . In addition, continuously variable belt transmission case
(79) Whether to install a hydraulic pump (80) on the rear side of the other side
And continuously variable belt transmission case (79) and gear case (4)
Hydraulic pump (80) is placed using extra space between
The input shaft (89) of the continuously variable belt transmission case (79)
Can be transmitted to the hydraulic pump (80). Ma
In addition, it is formed into a box-shaped structure independent of the gear case (4).
Hydraulic pump on the outside of the continuously variable belt transmission case (79)
(80) can be connected to the clutch case (78).
Possible, for example, due to frictional heat of the clutch (90).
Check that the internal temperature of the step belt shift case (79) rises.
Can be prevented. Also, between the left and right body frames (3),
Place each of the cases (4), (78), (79) below the upper surface
Because it is arranged, the body structure on the upper side of the body frame (3)
Can be simply configured .

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle body frame.

FIG. 2 is a side view of the riding rice transplanter.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of the traveling vehicle.

FIG. 5 is a plan view of the same.

FIG. 6 is an enlarged side view of a front part.

FIG. 7 is an enlarged side view of a rear part.

FIG. 8 is a drive system diagram of a traveling vehicle.

FIG. 9 is a plan view of a transmission case.

FIG. 10 is a rear view of the fertilizer application unit.

[Explanation of symbols]

(2) Engine (3) Body frame (4) Gear transmission case (78) Clutch case (79) Continuously variable belt transmission case (80) Hydraulic pump (90) Clutch (91) Output shaft

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-273724 (JP, A) JP-A-5-49320 (JP, A) JP-A-63-150146 (JP, U) JP-A-3-150146 78138 (JP, U) Japanese Utility Model 63-119961 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/02 B60K 17/08 F16H 9/18

Claims (1)

(57) [Claims] 1. A stepless vehicle for transmitting a driving force of an engine (2).
Gear shift case (79) and gear case for running output
(4) In the case of a mobile agricultural machine installed before and after,
Clutch connected to the output shaft (91) of the speed case (79).
Gear (78) to accommodate the clutch (90)
The clutch (4) is integrally formed on the front surface of one side of the case (4).
Of the continuously variable belt transmission case (79)
Fix the rear surface on one side and adjust the speed of the continuously variable belt case (79).
A hydraulic pump (80) is provided on the rear side of the other side,
Each case (4) below the upper surface between
(78) the mobile agricultural machine is characterized in that to place the (79).