JP4238456B2 - Agricultural machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an agricultural machine that issues an easy-to-understand alarm.
[0002]
[Prior art]
In a conventional farm work machine such as a rice transplanter, it is common to notify an abnormality that has occurred during work by a buzzer or a monitor lamp. If the control of work contents is complicated and diversified and the types of alarms increase, even if there are alarms, it may not be possible to immediately determine what kind of alarm it is.
[0003]
As for abnormalities such as disconnection of sensors, there is known a method of notifying an abnormal part by combining lighting of a plurality of check clamps. In this method, it is common for a person other than a professional service person to know an abnormal part without looking at a service manual or the like.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide an alarm device in which an ordinary farm worker can easily understand the alarm contents and can easily listen to the working machine.
[0005]
[Means for solving problems]
In order to solve the above problems, the present invention is configured as follows. That is, the invention according to claim 1
An engine (20), a traveling vehicle body (2), and a controller are provided, a seat (31) is installed on the traveling vehicle body (2) , and a steering operation handle (34) is provided in front of the seat (31). In the agricultural machine, the handle shaft (66) to which the handle (34) is attached can be rotated rearward and downward so that the handle (34) is a tilt handle and an alarm is issued toward the rear seat (31). The voice transmission means (67) is provided in the vicinity of the handle (34), and the voice transmission section of the voice transmission means (67) is directed downward when the handle (34) is rotated rearward and downward. Agricultural equipment .
[0006]
In the invention according to claim 2, when an alarm is issued by the voice transmitting means (67) , an unprocessed alarm content is stored in a storage device, and the main switch is turned on or the engine (20) is stored. The agricultural machine according to claim 1, wherein , in connection with the start, the abnormal content corresponding to the unprocessed operation at the previous work is transmitted again from the voice transmission means (67) .
[0007]
[Action and effect of the invention]
According to the first aspect of the present invention, since the voice transmitting means 67 for transmitting an alarm is arranged in front of the operator in the vicinity of the handle 34, which is closest to the operator, the voice can be easily heard, The contents can be recognized with certainty. Further, when the handle shaft 66 is rotated and the handle 34 is rotated rearward and downward, the sound transmitting portion of the sound transmitting means 67 faces downward, so that the water to the sound transmitting means 67 is also used when washing the agricultural machine. Intrusion can be reduced.
[0008]
In addition to the operation and effect of the invention according to claim 1, the invention according to claim 2 turns on the main switch connected to the controller or relates to the start of the engine 20 at the time of the previous work. Since unprocessed alarm contents can be transmitted from the voice transmitting means 67 and checked again when the work is resumed, safety and workability can be improved.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG.1 and FIG.2 has illustrated the fertilizer rice transplanter which is a kind of farm work machine. The fertilizer planter 1 has a planting part 4 mounted on the rear part of the traveling vehicle body 2 via an elevating link device 3 so that the planting part 4 can be raised and lowered. ing.
[0010]
The traveling vehicle body 2 is a four-wheel drive vehicle including left and right front wheels 10 and 10 and left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Front wheel final cases 13 and 13 are provided on both left and right sides of the front wheel 12, and left and right front wheels 10 and 10 are attached to front wheel axles that protrude from the front wheel support portions of the front wheel final cases 13 and 13 to the left and right sides. Yes. A rear wheel gear case has a front end portion of the main frame 15 fixed to the rear surface portion of the transmission case 12, and a rear wheel rolling shaft provided horizontally in the front-rear direction at the center of the rear end of the main frame 15 in the front-rear direction. The left and right rear wheels 11, 11 are attached to a rear wheel axle that is supported in a freely rolling manner and protrudes from the rear wheel gear cases 18, 18 to the left and right sides.
[0011]
The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the hydraulic continuously variable transmission 22 via the first belt transmission device 21 and is shifted by the hydraulic continuously variable transmission 22. Then, it is transmitted to the transmission case 12 via the second belt transmission device 23. The rotational power input to the mission case 12 is shifted by the internal transmission, and then is branched and extracted from the traveling power and the external power. A part of the driving power is transmitted to the front wheel final cases 13 and 13 to drive the left and right front wheels 10 and 10, and the remaining part is transmitted to the rear wheel gear cases 18 and 18 to transmit the left and right rear wheels 11 and 11. Drive. Further, the external take-out power is transmitted to a planting clutch 25 provided at the rear part of the traveling vehicle body 2, further transmitted to the seedling planting unit 4 by a planting transmission shaft 26, and to the fertilizer application device 5 by a fertilization transmission shaft 27. Be transmitted.
[0012]
The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed above it. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the left and right front wheels 10 and 10 is provided at the rear upper part of the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. In addition, on the left and right sides of the front part of the traveling vehicle body 2, spare seedling platforms 38 and 38 on which replenishment seedlings are placed can be rotated to a position protruding from the left and right sides of the machine body and a position stored inside. Is provided.
[0013]
The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. The upper link 40 and the lower links 41 and 41 are pivotally attached to a link base frame 42 having a rear side portal shape whose base side is erected at the rear end portion of the main frame 15, and a vertical link at the front end side thereof. 43 are connected. A connecting shaft 44 that is rotatably supported by the planting portion 4 is inserted and connected to the lower end portion of the vertical link 43, and the planting portion 4 is connected to be freely rotatable about the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm 45 integrally formed with the upper link 40. The link 40 rotates up and down, and the planting part 4 moves up and down while maintaining a substantially constant posture. A rolling hydraulic cylinder 47 for rolling the planting part 4 is provided on the upper part of the vertical link 43.
[0014]
The planting part 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a seedling stand that feeds seedlings to the seedling outlets 51a, 51a,... 51. Seedling planting devices 52, 52,... For planting seedlings supplied to the seedling outlets 51a, 51a,..., A pair of left and right drawing markers 53, 53 for drawing the aircraft course in the next stroke to the topsoil surface. I have. The seedling planting devices 52, 52,... Are configured to stop the operation separately in two adjacent units by a side clutch (not shown). A central float 55 is provided below the planting portion 4, and side floats 56, 56 are provided on the left and right sides, respectively. When the aircraft is advanced with these floats in contact with the mud surface of the field, the float slides while leveling the mud surface, and seedlings are planted by the seedling planting devices 52, 52,.
[0015]
These floats 55, 56, and 56 are pivotally attached so that the front end portion moves up and down according to the unevenness of the field topsoil surface, and during planting work, the front portion of the center float 55 is moved up and down. The planting depth of the seedlings is always maintained constant by raising and lowering the planting part 4 by controlling the elevating hydraulic cylinder 46 based on the pressure received by the floats 55, 56, and 56 from the soil surface. To do.
[0016]
Further, at the time of planting work, the rolling hydraulic cylinder 47 is operated based on the acceleration of the left and right inclination of the traveling vehicle body 2 and the left and right inclination angle of the planting part 4, and rolling control is performed so that the planting part 4 is always kept horizontal. .
[0017]
The raising / lowering of the planting part 4 and the on / off operation of the planting clutch 25 are performed by a planting raising / lowering lever 48 provided on the right side of the seat 31. As shown in FIG. 3, the planting elevating lever 48 has operation positions of “up”, “fixed”, “down”, and “planting”. When the planting lifting / lowering lever 48 is operated to “up”, the planting part 4 is raised, when operated to “fixed”, the planting part 4 is fixed at a fixed height, and when operated to “down” or “planting”, The planting part 4 descends. Further, the planting clutch 25 is engaged only when the planting lift lever 48 is set to “planting”.
[0018]
The rolling control is turned on and off in conjunction with the operation of the planting lift lever 48. As shown in the figure, when the planting part 4 is lowered, the rolling control is turned on when the planting lever 48 is moved from “fixed” to “down”, and when the planting part 4 is raised, the planting lever 48 is “lowered”. ”To“ Fix ”, rolling control is cut. The reason why the timing control of the rolling control differs between when the planting part 4 is lowered and when it is raised is as follows. That is, the planting part 4 is elastically regulated in the left and right positions via a spring provided between the vertical link 43 and easily sways left and right when the planting part 4 is lowered. For this reason, at the time of descent, rolling control is not performed at “descent”. By setting the planting lift lever 48 once to “planting” and then returning to “down”, rolling control is entered even at “down”, and it is possible to cope with traveling in a grounded state without planting.
[0019]
The fertilizer application device 5 includes a fertilizer hopper 60 that is a common fertilizer storage unit for each strip, and a fertilizer main body that includes a fertilizer feed unit 61, 61,. Is connected to one end of fertilizer hoses 62, 62,..., And the other end of fertilizer hoses 62, 62,... Is attached to both left and right sides of floats 55, 56, 56. It is connected to guides 63, 63,. The granular fertilizer stored in the fertilizer hopper 60 is fed out by a certain amount by the fertilizer feeding sections 61, 61, ..., and the fertilizer is guided to the fertilizer hoses 62, 62, ... to be carried to the fertilizer guides 63, 63, .... .. Are dropped into fertilization grooves formed in the vicinity of the side portions of the seedling-planting strips by groove-growing bodies 64, 64,... Provided on the front side of the fertilization guides 63, 63,. Further, the fertilizer application main body is provided with a blower 67 driven by a motor 66 and an air chamber 68 that is long in the left-right direction. Air blown from the blower 67 passes through the air chamber 68 and fertilization hoses 62, 62, ... and the fertilizer is forcibly conveyed by the air.
[0020]
FIG. 4 is a control system diagram of the alarm device of this fertilizer planting machine.
In the figure, the planting clutch SW is a switch that is turned on when the planting clutch 25 is “disengaged”, the shore clutch SW is a switch that is turned on when the shore clutch is “disconnected”, and the seedling reduction SW is a remaining amount of seedlings on the seedling mount 51. Is a switch that is turned on when the blower 67 is in a stopped state. The fertilizer feed sections 61, 61,... Or the fertilizer hoses 62, 62,... Are turned on when fertilizer clogging occurs, and the back SW is a switch that is turned on when the main transmission is shifted backward. Each of these SWs is connected to the input side of the controller.
[0021]
The float sensor is a sensor that detects the vertical movement of the front part of the center float 55, the surface pressure sensor is a sensor that detects the pressure that each float 55, 56, 56 receives from the field surface, and the stroke sensor is that of the rolling hydraulic cylinder 47. A sensor for detecting the operating stroke, a link sensor for detecting the angle of the upper link 40, an HST sensor for detecting the shift position of the hydraulic continuously variable transmission 22, and an angular velocity sensor for detecting the lateral inclination acceleration of the traveling vehicle body 2. The detecting sensor and the inclination sensor are sensors that detect the right and left inclination angles of the planting unit 4. Detection signals from these sensors are constantly transmitted to the controller.
[0022]
When one of the SWs is turned on, a signal is output from the output terminals 1 to 3 of the controller to the input terminals 1 to 3 of the sound alarm unit according to the SW. The SW is specified depending on which of the three input terminals 1 to 3 receives. For example, when the planting clutch SW is turned on, the output is output from the output terminal 1 to the input terminal 1. The audio alarm unit outputs an audio alarm having a content suitable for a specific SW from a speaker. Further, when an abnormality such as disconnection occurs in any sensor, the monitor lamp blinks.
[0023]
An engine speed sensor for detecting the engine speed is connected to the controller, and the volume of the sound alarm is adjusted according to the detection result of the engine speed sensor. For example, the volume is lowered during idling and the volume is increased during full throttle. As a result, the alarm can be heard at an appropriate volume that matches the engine sound.
[0024]
Next, the arrangement configuration of the alarm device speaker on the riding rice transplanter will be described with reference to FIG.
The engine 20 is mounted on the main frame 15, the upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is attached above the engine cover 30. A front cover 32 incorporating various operation mechanisms is provided at the front of the machine body. A handle shaft 66 is pivotally supported at the rear lower portion of the front cover 32, and the left and right front wheels 10 are disposed at the upper end of the handle shaft 66. , 10 is attached, and a lower portion of the handle 34 on the handle shaft 66 is covered with a column cover 65. Therefore, the column cover 65 is disposed at a front position separated from the seat 31 and the engine 20 by the floor step 35, and a speaker that transmits sound toward the rear seat 31 is disposed in the upper portion of the column cover 65. 67 (voice transmission means).
[0025]
Therefore, by arranging the speaker 67 on the column cover 65 closest to the operator in front of the traveling direction with respect to the operator, the voice can be easily heard and the voice alarm can be recognized with certainty.
[0026]
Next, the embodiment shown in FIGS. 6 and 7 will be described.
A handle shaft 66 is pivotally supported on the lower rear side of the front cover 32. The handle shaft 66 is divided into a lower handle shaft 66a and an upper handle shaft 66b, and these connecting portions are connected by a universal joint (not shown). Thus, the upper handle shaft 66b can be rotated toward the rear lower portion, and the handle 34 is attached to the upper end of the upper handle shaft 66b. A column cover 65 is mounted below the handle 34 of the upper handle shaft 66b, and a speaker 67 that emits sound toward the rear seat 31 is provided on the rearward projecting portion of the column cover 65. Thus, when the upper handle shaft 66b is rotated rearward and downward, both the column cover 65 and the speaker 67 are also rotated rearward and downward, and the sound transmitting portion of the speaker 67 faces downward.
[0027]
An operation groove 65a is provided on the side of the column cover 65 so that the main transmission lever 68 can be shifted to a road running position, a neutral position, a planting speed position, and a PTO transmission position in the operation groove 65a. When the upper handle shaft 66b is rotated rearward and downward, the main transmission lever 68 can be similarly bent and rotated from the midway portion.
[0028]
Therefore, when washing the passenger rice transplanter with water, if the upper handle shaft 66b is rotated rearward and downward, the sound transmitting portion of the speaker 67 faces downward, and water intrusion into the speaker 67 can be reduced.
In addition, it is good also as a structure which provides the opening-and-closing opening-and-closing plate in the audio | voice transmission part of the speaker 67 in the column cover 65, and closes an opening-and-closing plate in connection with rotation to the rear lower part of the handle shaft 66.
[0029]
In addition, a storage device is provided in the controller of the alarm transmission device so as to store unhandled response contents of abnormality notification contents, and a main switch (not shown) connected to the controller is turned on, or the engine When the engine start sensor 20 is detected by the engine rotation sensor, an unprocessed alarm content at the previous work is transmitted from the speaker 67 again.
[0030]
Therefore, when the work is restarted, check again the contents of the abnormal alarm contents before the engine stop at the previous work that are unprocessed, or that the main switch is turned off before the abnormal alarm is transmitted and the alarm is not transmitted. Therefore, safety and workability can be improved.
[Brief description of the drawings]
FIG. 1 is a side view of a fertilizer transplanter.
FIG. 2 is a plan view of a fertilizer transplanter.
FIG. 3 is a diagram showing a relationship between an operation position of a planting lift lever and turning on / off of rolling control.
FIG. 4 is a control system diagram of the alarm device.
FIG. 5 is a side view and a perspective view.
FIG. 6 is a side view and a plan view of a main part.
FIG. 7 is a cut side view of a main part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fertilizer planting machine 2 Traveling vehicle body 3 Lifting link apparatus 4 Planting part 5 Fertilizer 20 Engine 31 Seat 34 Handle 65 Column cover 66 Handle shaft 66a Lower handle shaft 66b Upper handle shaft 67 Speaker (voice transmission means)

Claims (2)

An engine (20), a traveling vehicle body (2), and a controller are provided, a seat (31) is installed on the traveling vehicle body (2) , and a steering operation handle (34) is provided in front of the seat (31). In the agricultural machine, the handle shaft (66) to which the handle (34) is attached can be rotated rearward and downward so that the handle (34) is a tilt handle and an alarm is issued toward the rear seat (31). The voice transmission means (67) is provided in the vicinity of the handle (34), and the voice transmission section of the voice transmission means (67) is directed downward when the handle (34) is rotated rearward and downward. Agricultural machine . When an alarm is issued by the voice transmission means (67), the alarm contents that have not been processed are stored in a storage device, and the main switch is turned on or the engine (20) is started. The agricultural machine according to claim 1, wherein the abnormal content corresponding to unprocessed is transmitted again from the voice transmitting means (67).

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