JPH1098918A - Battery attachment structure for farm work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the battery attachment structure of a farm work machine for improving the weight balance of a machine body and improving traveling stability, a steering property and the maintainability of a battery by attaching the battery to the lower surface of the front end corner part of a step. SOLUTION: Left and right steps are respectively disposed to the left and right sides of the lower part of a prime mover part arranged at the front part of the machine body and the battery 100 is attached to the lower surface of the front end corner part 101 of one step. Also, it is preferable to form respective terminal inspection holes 105 and 106 at the step above the terminals 103 and 104 of the battery 100.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a battery mounting structure for an agricultural work machine.

[0002]

2. Description of the Related Art Conventionally, in a farm work machine, a mounting position of a battery has not been specified.

[0003]

As a result, there have been problems such as deterioration of the weight balance of the body and inconvenience of battery maintenance.

[0004]

Therefore, according to the present invention, left and right steps are provided on the left and right sides of a lower portion of a prime mover disposed at a front portion of a body, and a battery is mounted on a lower surface of a front end corner of one of the steps. It is another object of the present invention to provide a battery mounting structure for an agricultural work machine.

[0005] The present invention also has the following features.

A terminal inspection hole is formed in each of the steps above the terminal of the battery.

The step mat is formed by cutting into a step mat covering the upper surface of the step, and the step mat above the terminal inspection hole is partially turned up so that the terminal can be exposed.

[0008]

Embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a rice transplanter A as an agricultural working machine according to the present invention. The rice transplanter A has a self-propelled body 1 and a three-point link having an elevating mechanism 31 at the rear thereof. And a planting section 4 connected via a mechanism 3.

The self-propelled body 1 has front, rear, left and right wheels 12, 12, 13, 13 on the front, rear, left and right sides of a body frame 11,
On the upper surface of 11, in order from the front, the motor unit 16, steering handle
17, a seat 18 is arranged, and the power from the engine E arranged inside the prime mover section 16 is transmitted to the drive shaft 28 and a transmission with a built-in belt type continuously variable transmission attached to the body frame 11 below the seat 18. The power is transmitted to the left and right rear wheels 13 and 13 via a case 19 and a rear differential case 20 disposed on the lower surface of the rear end of the body frame 11, and the power is transmitted from the transmission case 19 to the front wheel drive shaft 21 and the front differential case 22. To the front left and right wheels 12 and 12 to drive the rice transplanter A.

An airframe 11 and front and rear left and right wheels 12,1
The right and left steps 14L and 14R, which extend above the motor unit 16 on the left and right sides of the motor unit 16, the floor 27 and the left and right rear fenders 1
Covered with 5,15. In the figure, 23 is a shift lever, 24 is a planting clutch lever, 25 is a clutch pedal, 26 is a brake pedal, 40 is a planting section frame, 41 is a seedling mounting table, 42 is a float, 43 is a planting case, and 44 is a planting case. It is an attached nail.

The three-point link mechanism 3 is provided between the self-propelled body 1 and the planting section 4, and is for lowering and lowering the planting section 4 with the lower link 32 interlockingly connecting the elevating mechanism 31. A top link 34 having a front-back tilt mechanism 33 and a lower link 32
A hitch 35 is provided between the rear end and the rear end of the top link 34, and the planting section frame 40 is tilted left and right through a longitudinal pivot 36 protruding from a lower rear surface of the hitch 35. Pivot freely, upper end of hitch 35 and planting section frame 40
A horizontal tilting mechanism 45 is interposed between the
The horizontal movement of the planting section 4 is maintained by the operation of.

As described above, the prime mover section 16 is disposed at the front of the body frame 11, and as shown in FIGS. 3 and 4, inside the prime mover section 16 from the front to the rear. Thus, the engine E, the cooling fan F, and the radiator R are arranged in the above order.

The engine E is supported on the body frame 11 as follows. That is, as shown in FIG. 5 and FIG. 6, the body frame 11 is composed of left and right side members 11L and 11R having a substantially rectangular cross section in a vertically long section.
Between L and 11R, the rear output shaft 50a at the rear of the engine E is displaced by providing an offset amount 50d to the left of the fuselage center line CL,
The engine E is arranged so that the oil pan 51 projects below the lower surfaces of the left and right side members 11L and 11R.

The engine E includes an engine support frame 53,
The cylinder block of the engine E is attached to the body frame 11 via a vibration damping member 55 such as a rubber cushion.
52 left and right engine support frames 53L, 53
R is mounted on the inner side surface via bolts 54, and the outer front and rear ends of the left and right engine support frames 53L, 53R are respectively mounted on damping member mounting bases 56 projecting from the left and right side members 11L, 11R via damping members 55. And support them.

Since the engine supporting member is not below the engine E by the above engine supporting structure, the engine E is arranged at the lowest possible position to improve the running stability by lowering the center of gravity of the body and to improve the bonnet described later. B can be lowered to improve forward visibility, and the steering column
Even if the 57 is arranged on the fuselage center line CL, interference with the rear output shaft 50a can be avoided, the steering handle column 57 can be arranged reasonably and easily, and ventilation to the oil pan 51 is good. As a result, the cooling efficiency of the engine is improved, the deterioration of the lubricating oil is suppressed, the service life is extended, and the drain plug 51a provided at the lowermost portion of the oil pan 51 is easily attached and detached, so that the oil changing operation is facilitated.

In particular, the offset amount 50 of the rear output shaft 50a
d is set to be smaller than the offset amount 29d of the input shaft 29 of the transmission case 19 to prevent the forward visibility of the operator due to the increase of the hood width due to the excessive offset of the engine E and the deterioration of the weight balance. doing. In the figure, 58 is a flywheel.

A muffler mounting stay 59 protrudes outwardly from a middle portion of the right engine support frame 53R.
By attaching a muffler 61 disposed below R and separating the muffler 61 from the engine E, the cooling efficiency of the engine E is improved.

The muffler 61 is formed in a vertically long and substantially cylindrical shape, and the mounting fixture is provided inward from the outer peripheral surface of the muffler 61.
60, the front end of the muffler 61 communicates with the exhaust manifold 62 of the engine E via an exhaust pipe 63.
The rear end of 61 is communicated with the outside air through a tail pipe 64 opening outward.

As described above, since the engine E and the muffler 61 are integrated via the right engine support frame 53R, the engine E and the muffler 61 belong to the same vibration system, and the support structure of the muffler 61 And the communication structure between the engine E and the muffler 61 can be made strong and simple.

Above the engine E, a substantially cylindrical air cleaner 66 connected to the engine E via an intake pipe 65 is connected to the engine E. The longitudinal direction of the air cleaner 66 is perpendicular to the fuselage center line CL. It is possible to reduce the height of the bonnet B described later, and to make the upper surface of the bonnet B lower than the straight line connecting the upper edge of the visor 78 described later and the eyes of the operator. In addition to improving the visibility in the lower front direction, the maintainability of the air cleaner 66 is improved, and the air cleaner 66 is further provided with a base end of an intake duct 67 bent in a substantially L shape so as to communicate with the air cleaner 66. The intake opening 67a of the duct 67 is located on the cooling air intake side behind the radiator R to increase the filling efficiency, and the intake opening 67a of the intake duct 67 is cut in a plane of front high, low, low and diagonally lower front. Open in the direction This prevents water and raindrops from entering during car washing.

The cooling fan F is rotatably supported on the rear side of the engine E, and is driven by a rear output shaft 50a of the engine E via a fan belt 68 to suck cooling air from behind and discharge it to the front.

The radiator R is connected to the left and right side members 11.
L, 11R are mounted on the upper surface of a cross member 69 erected between the upper surfaces of the radiator R and the engine E while the cooling air sucked from behind by the cooling fan F passes forward. The circulating cooling water is cooled.

The lower half of the motor unit 16 is shown in FIGS.
As shown by, a bumper 70 attached to the front end of the body frame 11 and a lower cover 71 integrated with the left and right steps 14L and 14R surround the periphery except for the lower surface, and the upper half portion covers the entire periphery including the upper surface. Covered with bonnet B.

As shown in FIG. 3, the bumper 70 is rotatable from a normal position shown by a solid line to an open position shown by an alternate long and short dash line about a bumper mounting shaft 70a provided below the bumper 70. A car wash pump 72 is provided between the rear surface of the bumper 70 and the front end of the engine E. The car wash pump 72 is connected to the front output shaft 50b of the engine E. The bumper 70 is opened and the car wash pump 72 is opened. Can be connected to a hose for car washing.

As shown in FIGS. 3 and 4, the bonnet B is formed by a curved surface which gently swells upward from a lower edge B3 having a substantially elliptical planar shape. Divided into a front bonnet B1 that is easy to attach and detach, and a rear bonnet B2 that is fixed to the mid-body via bolts and nuts etc. at a front low rear high division surface B4 connecting the rear part and the position directly above the radiator R of the bonnet B Have been. Therefore, when the front bonnet B1 is removed, almost all of the engine E with high maintenance frequency is exposed, while the dangerous cooling fan F and the high-temperature radiator R are covered with the rear bonnet B2 while rotating with low maintenance frequency. Therefore, engine maintenance can be performed safely and easily.

As shown in FIGS. 1 to 3, the front bonnet B1 is provided with a headlight 73 at its front end and a notch for fitting a lower portion of a visor 78 described later at an upper rear edge. And an exhaust window 75 having a large opening area formed by three wide slits 74 is formed on the upper surface, and a lath net, an expanded metal plate, Alternatively, an exhaust net 77 having a large aperture ratio such as a punching metal plate is attached. Accordingly, the cooling exhaust air flowing from the rear to the front inside the hood B is smoothly discharged, and the cooling efficiency is improved. Further, even if the opening area of the exhaust window 75 is increased, the exhaust net body is not bonnet as before. As compared with the case where the components are integrally formed, the strength and rigidity are higher and the manufacturing cost is lower.

As shown in FIGS. 1 to 3, the rear bonnet B2 is provided with an extended portion projecting forward at the upper front edge of the rear bonnet B2, and a visor 78 is provided at the front edge of the extended bonnet B2. A protruding instrument panel (not shown) is provided, and two upper and lower cooling air suction windows 79, 79 are formed on the left and right side surfaces of the rear bonnet B2 located behind the radiator R, and each cooling air On the back of the suction windows 79, 79, a suction net with a large aperture ratio
79a and 79a are stretched.

Further, inside the rear bonnet B2, a partition plate 82 whose upper portion is bent obliquely rearward and upward is attached to the front surface of the radiator R, and the intake openings of the engine E, the radiator R and the intake duct 67 are provided. The airtightness is improved by providing the partition plate 82 on the rear bonnet B2 side, which is less frequently opened, and improves the airtightness. Further, when the engine E disposed inside the front bonnet B1 is maintained, Divider 82
There is no need to take off and attach, so there is less trouble.

As shown in FIG. 7, the partition plate 82 is formed by connecting upper and lower partition plates 82a and 82b wrapped above the radiator R with a connecting screw.
The left and right lock support frame insertion recesses 84a, 84b and the upper intake duct insertion recess 85a are formed on the left and right sides of the lower end edge of the upper partition plate 82a and near the center left side, respectively, A lower intake duct insertion recess 85b is formed at a position opposite to the upper intake duct insertion recess 85a, and when the upper and lower partition plates 82a, 82b are connected, the left and right lock support frames 94, 94 described later and the intake duct 67 are partitioned. The plate 82 is inserted so that the partition plate 82 is easily attached and detached. Also, the lower partition plate 82
An opening / closing rod insertion hole 86 is formed on the left and right sides of the upper edge of b. In the figure, 85c and 86a are grommets, and 88 is an insertion hole for a wire harness or the like.

As shown in FIG. 3, from the rear surface of the lower end of the radiator R to the front end of the floor 27, a substantially L
A U-shaped lower partition plate 87 is stretched to prevent the cooling exhaust air from flowing from below to the rear surface of the radiator R.

The front bonnet B1 is detachably attached to the lower cover 71 fixed to the body and the rear bonnet B2 via a bonnet lock mechanism 90. The bonnet lock mechanism 90 is, as shown in FIG. The front bonnet
In the vicinity of the center of the rear edge of B1, a lock pin 92 protruding inward through a reinforcing plate 91 is protruded, while on the fuselage side, inside the bonnet B, forward from a substrate 93 fixed to the fuselage. A pipe-shaped lock support frame 94 is erected and
A lock support plate 95 is vertically provided in the middle of the lock support plate 94, and a substantially U-shaped lock pin insertion concave portion 96 opened diagonally forward and upward is formed below the front end edge of the lock support plate.
A lock shaft 97 protrudes outward from the outer surface of the lock plate 95, and a central portion of a lock plate 98 having a substantially triangular plate shape is pivotally connected to the lock shaft 97 so as to be rotatable. At the time of locking, a substantially U-shaped lock concave portion 100 is formed which opens obliquely forward and downward and has a curved portion 99 which is curved upward and convex at the lower end edge.

The bonnet lock mechanism 90 is operatively connected to a lock opening / closing operation lever 104 projecting rearward from the rear surface of the rear bonnet B2 through an opening / closing rod 101 as an interlocking connection member inserted through the opening / closing rod insertion hole 86. ing. That is, the front end of an opening / closing rod 101 having a partition plate 82 inserted through the rear end of the lock plate 98 is pivotally connected to the opening / closing operation shaft 102 which is rotatably inserted through the upper portion of the substrate 93. A lock opening / closing operation lever 10 rotatably pivotally attached to the tip of an interlocking arm 103 provided and extending rearward on the opening / closing operation shaft 102.
4, the middle part of the lock opening / closing operation lever 104 is bent in a substantially elliptical shape, and the rear end protrudes rearward through a slit 105 formed in the rear surface of the rear bonnet B2. . In addition, a Bowden cable can be used as the interlocking connection member. In the figure, reference numeral 106 denotes a grip.

With this configuration, when removing the front bonnet B1, when the rear end of the lock opening / closing operation lever 104 is turned upward to the position shown by the dashed line, the lock plate 98 is turned upward and forward. The lock is released and the lock pin 92 is pushed obliquely forward and upward from the lock pin insertion recess 96 by the curved portion 99, so that the front bonnet B1 can be easily removed.

When the front bonnet B1 is mounted, the lock pin 92 is pushed into the lock pin insertion concave portion 96 from an obliquely front upper direction. Is rotated forward and downward until it is in a partially locked state. Then, the lock opening / closing operation lever 104
When the rear end portion is rotated downward to the position shown by the solid line, the lock plate 98 is rotated forward and downward, and the entire circumference of the lock pin 92 is surrounded by the lock pin insertion concave portion 96 and the lock concave portion 100. Lock pin 92 in shape.

As described above, when the lock pin 92 is locked,
To lock the front bonnet B1 securely, and to release the lock when unlocking.
The front bonnet B1 can be easily removed by pushing the 92 forward diagonally forward.

Further, since the rear end of the lock opening / closing operation lever 104 is provided so as to protrude from the rear surface of the rear bonnet B2, the lock opening / closing operation lever is provided while the operator is seated on the seat 18.
104 can be operated, and the lock opening / closing operation lever 104 and the lock plate 98 are interlocked and connected by the opening / closing rod 101 through which the partition plate 82 is inserted. can do.
If there is a lock opening / closing operation lever at the lower front of the aircraft,
The lever may rush into the field when entering or leaving the field.

In FIG. 4, reference numeral 110 denotes a battery, which is attached to the body through a battery support frame 112 provided on the lower surface of the front end corner 111 of the right step 14R.
The above-mentioned front end corner portion 111 immediately above the terminals 113 and 114 of 110
Are formed with terminal inspection holes 115 and 116, respectively.

A step mat 117 is provided on the upper surface of the right step 14R.
7 has notches 118, 11 for partially turning up the step mat 117 directly above the terminal inspection holes 115, 116.
9,120.

As described above, the heavy battery 110
Is located at the front corner 111 of the right step 14R, so that the weight balance between
Terminal inspection holes 115, 116 are formed just above the terminals 113, 114,
Cuts 118, 119, 120 are provided above the terminal inspection holes 115, 116 of the step mat 117, so that the step mat 117 directly above the terminal inspection holes 115, 116 can be partially turned up, so that the battery 110 does not have to be removed from the machine. Can also perform maintenance and supplementary charging of the terminals 113 and 114.Especially, in the case of rice transplanters, it is highly likely that the battery 110 has been exhausted because it is used only once a year and has not been used for a long time. It is very convenient because it can perform supplementary charging while it is attached to the camera.

[0041]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the left and right steps are respectively disposed on the lower left and right sides of the motor unit disposed in the front part of the body, and the battery is mounted on the lower surface of the front end corner of one of the steps. The mounting position of the battery is lowered, and the weight balance of the body is improved, so that the running stability and steerability can be improved. In addition, since the battery is attached to the protruding end of the body, which is the corner of the step, even if it is attached to the lower surface of the step, the battery is easily accessible and the work of attaching and detaching the battery is facilitated.

According to the second aspect of the present invention, since the terminal check holes are formed in the steps above the terminals of the battery, the work for checking the voltage and the contact state of the terminals and the auxiliary charging can be performed without removing the battery from the body. Can make these tasks easier.

According to the third aspect of the present invention, the step terminal can be exposed by forming a cut in the step mat covering the upper surface of the step and partially turning up the step mat above the terminal inspection hole. By doing
In the maintenance of the battery, the work of checking the voltage and the contact state of the terminal and the work of supplementary charging can be performed immediately by simply turning up the step mat above the terminal check hole, further simplifying the above work. be able to.

[Brief description of the drawings]

FIG. 1 is an overall side view of an agricultural working machine (rice transplanter) according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a partially cut-away side view of a motor unit.

FIG. 4 is a plan view of the same part cut.

FIG. 5 is a plan view of an engine support frame.

FIG. 6 is a partially cut front view of the engine.

FIG. 7 is a front view of a partition plate.

FIG. 8 is a side view of the bonnet lock mechanism.

[Explanation of symbols]

 A Farm machine B Bonnet CL Body centerline E Engine F Cooling fan R Radiator 11 Body frame 11L Left side member 11R Right side member 14L Left step 14R Right step 16 Motor unit 100 Battery 101 Front corner 103 Terminal 104 Terminal 105 Terminal inspection hole 106 Terminal Inspection Hole 107 Step Mat 108 Depth 109 Depth 110 Depth

Claims (3)

[Claims] 1. A left and right step (14L) (14R) is disposed on the lower left and right sides of a motor unit (16) disposed on the front of the fuselage, respectively.
The battery is placed on the underside of the front corner (101) of one step.
A battery mounting structure for an agricultural work machine, wherein (100) is mounted. 2. The agricultural work machine according to claim 1, wherein terminal inspection holes (105) and (106) are formed in the steps (14R) above the terminals (103) and (104) of the battery (100), respectively. Battery mounting structure. 3. A notch (108), (109), (110) is formed in a step mat (107) covering the upper surface of the step (14R), and the step mat (107) is formed at a position above the terminal inspection holes (105, 106). Partially flip up the step mat (107) and insert the terminal (103)
The battery mounting structure for an agricultural work machine according to claim 2, wherein (104) is exposed.