JP3364649B2 - Traveling device for walking type management machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a working machine used for farming work such as tillage work in a field, and pulls the airframe by one traveling device formed below the airframe. It is related with the traveling apparatus of the walk type | formula management machine which performs said agricultural work by the back rotary while traveling. [0002] Conventional walking-type management machines are generally provided with a single wheel-type traveling device below the fuselage, with a rotary attached to the rear, and a handle bar toward the upper rear from the top of the fuselage. The operator is standing upright so that the operator can perform a steering operation by holding the rear end of the handle bar. However, in the walking type management machine configured as described above, since the traveling device is a single wheel type, the contact area between the wheel and the ground is small and the traction force is lacking. there were. In order to perform farming work, it is necessary to move the machine to a field as a work place, but this movement must be performed so that the rotary below the machine does not come into contact with the road surface. Therefore, the operator lifts the handle 延 that extends to the rear of the aircraft,
The rotary is lifted from the road surface to solve the above problem. At this time, the operator has to lift the handle bar constantly, which is a heavy burden. Accordingly, an object of the present invention is to provide a travel device for a walking type management machine that solves the above-described problems with a simple configuration. A motor 5 is disposed in front of a gear case 1 provided in the center of the machine body , and a rear lower portion of the gear case 1 is provided.
The rotary 4 is connected and arranged through the transmission case 13 , and
In a walking-type management machine in which a handle bar 6 for maneuvering the aircraft is extended rearward and upward from the upper part of the aircraft, the gear
Running with the drive sprocket 7 pivotally supported from the case 1 to the tip
The transmission case 12 is extended forward and downward, and further the running
To the track frame 33 connected and fixed to the transmission case 12
A plurality of rollers 8 and 9 are axially mounted, and these rollers 8 and 9 and the drive sp
The crawler belt 11 is wound around the rocket 7 and the machine body
In order to provide a single crawler traveling device 2 at the center position,
Travel formed between a plurality of rollers 8 and 9 of the roller travel device 2
Row grounding surface Y at least in the rear rotary 4 grounding state
And it is set as the structure of the traveling apparatus of the walking type | formula management machine characterized by making it carry out front-up inclination (theta) and attaching . In the present invention, during the tilling work with the rear rotary 4 being driven and rotated , the ground contact surface Y of the crawler traveling device 2 is inclined at an inclination angle θ toward the forward direction in side view.
Since the crawler contact surface Y is inclined in the forward direction during the tillage operation, the traveling road surface C can be surely stepped under the fuselage and sufficient traction can be exerted. Also, when traveling to Tabata ,
Raise the handle 6 and crawler travel device 2
The Rukoto tilted forward around the grounding point A near the end, a stable state of the entire crawler ground plane Y is grounded to the running road surface C
Next, and the traveling device 2 rearward of the rotary 4 road surface C than can Rukoto floated upward, it is possible to easily travel and move. Embodiments of the present invention will now be described with reference to the drawings. A gear case 1 provided in the center of the machine body
Travel device 2 and rotary 4 provided below
To travel and tillage work. The traveling device 2 includes:
It is attached to a lower end portion of a traveling transmission case 12 extending forward and downward from the gear case 1, and the rotary 4 is connected to the gear case 1.
The traveling device 2 and the rotary 4 are arranged at the front and rear of the center of the machine body by being attached to the lower end portion of the rotary transmission case 13 extending downward from the rear. A rotary cover 14 is provided above the rotary 4 to prevent scattering of soil upward. The rotary cover 14 is attached to a mounting frame 15 extending rearward of the gear case 1 so that the front and rear positions can be fixed. Yes. Rotary cover 1
The front cover 16 is attached to the front end of the front cover 4 so as to prevent the soil from being scattered to the front of the rotary 4. The front cover 16 is configured to be adjustable in protruding length by a bolt or detachable. Reference numeral 17 denotes a resistance rod that determines the tilling depth of the rotary 4, and extends downward from the mounting frame 15. Reference numeral 18 denotes a stand that can be rotated around a shaft 19, and supports the body on the front side of the body, and is rotated and stored during traveling so as not to interfere with traveling.
A handle bar 6 is erected on the upper part of the gear case 1 so as to be directed rearward and upward, so that an operator walking behind the machine body can perform a steering operation with the rear end part of the handle bar 6 being held. Yes. 20 and 20 are grips attached to the rear end of the handle bar 6, 21 is a finger clutch lever for intermittently driving the power of the rotary 4, 22 is a stand lever for rotating the stand 18, and 23 is a body lever. A speed change lever 24 for switching the traveling speed is a main clutch lever for intermittently transmitting power from the prime mover 5 to the gear case 1.
1, 22, 23 and 24 are provided in the vicinity of the grips 20 and 20 at the rear end of the handle bar 6 so as to be convenient for a maneuvering operation. The handle rod 6 is composed of two pipe rods extending radially in plan view with the gear case 1 as the center, and the left and right pipe rods are connected and reinforced by the connecting plate 25 at the front and rear intermediate portions thereof. . A safety switch 26 is installed at the center of the connecting plate 25. When the switch 26 is pressed, the driving of the prime mover 5 is stopped. A mounting base 27 for mounting the motor 5 is formed in front of the gear case 1.
The prime mover 5 and the gear case 1 mounted on the top are connected by a belt to enable power transmission. Reference numeral 28 denotes a transmission cover that covers the power transmission portion of the belt, and reference numeral 29 denotes a prime mover cover that covers the upper surface of the prime mover 5. On the left and right sides of the gear case 1, there is a rotary 4
Rotary lever 30 for operating the rotational speed and direction of rotation
On the other side, a traveling operation lever 31 for operating the traveling speed and forward / backward direction of the aircraft is provided. A bumper frame 32 having a planar view gate shape is attached to the front end of the airframe to protect the airframe from obstacles that collide from the front of the airframe. The traveling device 2 includes a traveling transmission case 12 as shown in FIG.
A drive sprocket 7 that receives power at the lower end, two grounding wheels 8 and 9 located on the grounding side, and an upper wheel 10 attached to a position above and above the two grounding wheels 8 and 9. A crawler belt 11 is wound around, and the ship bottom type in side view, that is,
The crawler traveling device 2 has an inclined surface Z facing upward and forward at the front portion. The three rollers 8, 9, 10 are along the track frame 33 extending in the front-rear direction, and the upper front wheel 10 at the front end of the track frame 33, and the inner front side of the two grounded rollers 8, 9 in the middle. The grounding wheel 8 arranged on the rear side, and the grounding wheel 9 arranged on the rear side of the two grounding wheels 8, 9 at the rear end.
In this order, the track frame 33 is bent from the vicinity of the mounting position of the grounding wheel 8 located in the middle toward the front upper side, so that the upper wheel 10 is turned into two grounding wheels as described above. It is arranged at an upper front position than the wheels 8 and 9. Also , the grounding wheels 8, 9 on the side of the track frame 33
Between it is attached a flat Sukurepa 35 scrapes off soil that Mochimawara attached to the ground track roller 8,9. Reference numeral 34 denotes a tension bolt that adjusts the tension of the crawler belt 11. By adjusting the tightening amount of the bolt 34, the grounding wheel 9 disposed on the rear side is moved and adjusted in the front-rear direction.
Further, the crawler traveling device 2 forms a crawler grounding surface Y on the lower surface of the two grounded rolling wheels 8 and 9, and the crawler grounding surface Y is a road surface C when the rear rotary 4 is grounded. In contrast, it is configured to have an inclination angle θ in the forward direction in the side view. In order to perform the field cultivation work with the walking type management machine having the above-described configuration, first, the machine body is pulled and moved to the field field as a work place by one crawler traveling device 2 formed below the body. The traveling movement at this time is performed in a state where the entire crawler contact surface Y is in contact with the traveling road surface C as shown in FIG. 2, that is, in a state where the rear rotary 4 is lifted upward by the traveling road surface C. During the movement, the rear rotary 4 does not come into contact with the traveling road surface C and the rotary 4 and the traveling road surface C are not damaged. At this time, the airframe is supported by the entire crawler grounding surface Y, so that the weight of the airframe is distributed over the entire crawler grounding surface Y and the burden due to the airframe weight on the traveling road surface C and the traveling device 2 is reduced. ,
The traveling device 2 is not damaged and the traveling road surface C is not damaged. Next, while the crawler traveling device 2 pulls the machine body and travels in the field, which is a work place, the tilling work is performed by the rear rotary 4. The tilling work sets the tilling depth by the resistance rod 17. At the same time, the rear rotary 4 is pressed against the traveling road surface C, that is, in a state where a part of the rotary 4 is buried in the ground. At this time, the crawler traveling device 2 travels in a state where the crawler ground contact surface Y formed on the lower surface thereof is inclined forward and upward with respect to the traveling road surface C. It can be surely stepped under the crawler traveling device 2 to exert a sufficient traction force, and can obstruct front obstacles such as dredging with the ship bottom inclined surface Z in front of the traveling device 2 with certainty. If the crawler belt 11 is loosened due to elongation or the like, the tension bolt 34
The crawler belt 11 is stretched by pushing the grounding roller 9 disposed on the rear side of the two grounding rollers 8 and 9 rearward along the track frame 33. At this time, the crawler grounding surface Y is extended rearward as the grounding wheel 9 moves rearward. As a result, the crawler grounding area is expanded and the traction force of the crawler traveling device 2 is improved. It should be noted that the inclination angle θ of the crawler traveling device 2 in the above embodiment may be any number as long as it is an acute angle. Preferably, the inclination angle θ is set within a range of 5 ° to 15 °. And was able to demonstrate the strongest traction at this time. In addition, numbers are given in the claims to make them convenient for the objects of the drawings, but the present invention is not limited to the structure of the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of an embodiment of the present invention. FIG. 2 is an overall side view of an embodiment of the present invention. FIG. 3 is an overall plan view of an embodiment of the present invention. FIG. 4 is a right side view of a main part in the embodiment of the present invention. FIG. 5 is a left side view in which a main part is partially cut in the embodiment of the present invention. FIG. 6 is a front view in which a main part in the embodiment of the present invention is partly cut. [Description of Symbols] 1 Gear case 2 Traveling device 4 Rotary 6 Handle rod 7 Drive sprocket 8 Ground wheel 9 Ground wheel 10 Upper wheel 11 Crawler belt Y Crawler ground surface Z Inclined surface θ Inclined angle

─────────────────────────────────────────────────── ─── Continued from front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01B 33/02-33/08 B62D 51/06 B62D 55/07

Claims (1)

(57) [Claims] [Claim 1] In front of the gear case (1) provided in the center of the fuselage
The prime mover (5) is transmitted to the rear lower side of the gear case (1).
The rotary (4) is connected and arranged through the case (13) ,
In addition, in a walking type management machine in which a handle rod (6) for maneuvering the aircraft is extended from the upper part of the aircraft to the rear and upward , a drive sprocket extends from the gear case (1) to the tip.
The traveling transmission case (12) that pivotally supports (7)
And is connected to the travel transmission case (12).
A plurality of wheels (8) on the track frame (33) to be worn;
Shaft (9) and these rollers (8), (9) and drive sprue
Roll the crawler belt (11) over the ket (7)
A single crawler travel device (2) is provided at the center position
The crawler traveling device (2) has a plurality of wheels (8),
(9) At least behind the running contact surface (Y) formed between
Rotary on the other side (4) Inclined forward (θ)
A traveling device for a walking-type management machine, characterized in that it is attached .