KR100287386B1 - Walkbehind reaper - Google Patents

Abstract

The present invention relates to a walk-type mowing machine that can be carried out more efficiently to harvest the crop by allowing to maintain the height, the height is continuously controlled; The cutting conveyance unit 58 provided in front of the main frame 52 equipped with the engine 51 at the rear and the main frame 52 receives power from the engine 51 and receives wheels 76 and mowing. A drive case 60 for transmitting power to the transfer unit 58; In constructing the height, the height adjustment device (100) of the walk-type mowing device (50), the operation handle (80) is fixed to the rear of the main frame (52);

The height and height adjusting device 100 is driven in the center of the main frame 52 to drive the harvesting device 54 and the wheel 76 receives power from the engine 51 drive 60 A control bar 102 inserted into the boss 101 protruding from both sides of the lower end of the protruding upwardly from the main frame 52;

The control bar 102 is configured to include a control hole (110, 111) is intermittent to the control pin 114 through the coupling hole 113 formed in the bracket 112 is fixed on the main frame (52).

Description

Walk-type mower {Walkbehind reaper}

The present invention relates to a walk-type mower, and more particularly, to provide an improved walk-type mower according to the type of crop to be harvested to improve the height and height.

The walkable mowing machine has wheels as a means for moving on the bottom of the frame, and in front of the frame, a mowing and transporting unit for cutting and transporting crops is connected with a multi-row entry path through which a crop to be harvested can enter.

The upper surface of the frame is equipped with an engine for driving the wheel and the mowing conveying portion and the configuration of the steering wheel is fixed to the rear of the engine.

The walkable mowing machine as described above is that the crop is transported through the mowing transport unit by the driver holding the steering wheel and moving forward.

Conventionally, many walk-type mowing machines are used, and a representative example thereof is illustrated in FIGS. 1 and 2 and looks at them as follows.

There is a bisected frame (2) equipped with an engine (1) in the rear, and in front of the frame (2) is a sled body (3) directly connected to the ground and a mowing part (5) on the mowing frame (4). It is provided, and the cutting conveyance part 7 which has a multi-row dividing plate 6 in front of it is connected.

Under one side of the frame 2, a transmission case 8 is drawn out to receive power from the engine 1, and wheels 10 are provided on the drive shaft 9 which is drawn out to both sides of the transmission case 8. ) Is connected.

The rear of the frame 2 is provided with a plurality of operating levers (11, 12) to facilitate the operation of the steering wheel 14 is protruded to constitute a conventional walk-type mowing machine (15).

As described above, the conventional walk-type mowing machine 15 is also provided with a height and height adjusting device 16 for adjusting the cutting height.

Looking at the height, the height adjustment device 16 in detail;

An arc-shaped guide bar 17 is fixed to the transmission case 8 projecting downward while being biased toward one side of the frame 2, and the guide bar 17 is a guide 18 provided in the frame 2. It protrudes upward by passing through.

On the drive shaft 9 at the opposite position where the guide bar 17 is located, the control bar 20 is freely moved with the drive shaft 9 and the control bar 20 having the long slot 19 in the longitudinal direction protrudes upward. .

On the long slot 19 of the adjustment bar 20 is configured to be fixed by the fixing bolt 21 and the nut 22 provided in the frame (2).

The height and height adjustment device 16 of the prior art as described above, the height and height of the walk-type mowing machine 15 by the selection of the fixing bolt 21 and the nut 22 to control the control bar 20. It may have the advantage of controlling the cutting height of the crop without permission, but has the disadvantage that the actual height adjustment is impossible.

This is because the wheel 10 and the frame (10) by pushing or pulling the drive shaft 9 drawn out from the transmission case 8 by moving the adjusting bar 20 up and down of the fixing bolt 21 under the frame 2. 2) As the gap between phases is widened and narrowed, the height is adjusted.

At this time, the transmission case 8, the connection portion and the drive shaft (9) of the engine 1 is in a state where the movement is free, it is possible to move freely when the height, height adjustment.

The guide bar 17 fixed to the transmission case 8 is freely moved up and down of the frame 2 according to the movement of the transmission case 8 while being inserted into the guide 18 fixed on the frame 2. Will be moved.

Even when the height and the height adjustment as described above, only the wheel 10 is moved substantially in the up and down direction of the frame (2) Looking at the height, the height is adjusted, when the height is increased By the wheel 10 spaced apart from the frame 2, the tip portion of the cutting conveying unit 7 is inclined forward, and when the height is lowered, the wheel 10 is narrowed with the frame 2 when the height is lowered. The tip end of the mowing and conveying section 7 is in a form lifted upward.

In the prior art as described above, even if the height of the walk-type mowing machine is adjusted, the effective cutting height and the height are adjusted according to the degree of the operator holding the steering wheel, so that there is no effectiveness.

In other words, if the operator works while holding the steering wheel, the tip of the cutting carrier is lifted upward, and when the steering wheel is raised, the tip of the cutting carrier is lifted, so the height of crop being cut is not constant. Because

Another problem of the prior art walk-type mower as described above is that the wheel-mounted mower adheres to the working position by the wheel and the sled body, so that the height and height of the wheel are controlled but the height of the sled body is extremely small. Substantial adjustments, such as those mentioned above, become impossible.

In addition, by loosening the fixing bolt 21, the nut 22 and the guide 18 fixing the guide bar 17 provided in the frame (2) when adjusting the height, the height of the walk-type mop ( Since 15) is lowered to the lowest position, another operator must firmly tighten the nut 22 and the guide 18 while the operator is holding the steering wheel 14 and holding the aircraft to the position to be adjusted. The worker holding the handle 14 is very hard because the walk-type mowing machine 15 is heavy and there are problems such as necessarily two or more people required when adjusting the cutting height, height.

Particularly, the related structure for height and height adjustment is complicated, and if the combination of the adjustment bar and the fixing bolt and nut that adhere to the height and height adjustment state is not firm, Since there are factors that can be easily changed by the same external pressure, there are a number of problems such as the sliding height of the crop gradually changes during the operation by sliding along the long slot of the control bar.

Therefore, the present invention is to solve the problems described above, the drive case for transmitting power to the wheel is located in the center of the frame and the bracket provided in the control frame and the frame protruding upward from both sides of the drive case; By the pin coupling of the height, to adjust the height;

By further supporting the rear wheels of the frame so that the walking mowing machine is supported by the wheels and the auxiliary wheels so that the height, height adjustment can be made more realistically to perform the harvesting operation of the crops more efficiently;

It is an object of the present invention to provide convenience of adjustment work by allowing one worker to easily perform the height and height adjustment work when adjusting the height and height of the walking-type mower.

1 is a front view of a walk-type mowing machine to which the prior art is applied.

Figure 2 is a perspective view of the height, height adjustment parts that are the main part of the prior art.

3 is a front view of the walk-type mower to which the technique of the present invention is applied.

Figure 4 is a perspective view of the frame portion of the walk-type mowing machine that is the main part of the present invention.

FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4. FIG.

Figure 6 is a perspective view of the height adjustment device applied the technology of the present invention.

7 is a perspective view taken from part B of FIG.

8 is a plan view extracting the power transmission relationship to which the technique of the present invention is applied.

* Description of the symbols used in the main parts of the drawings *

50; Walk-type mower

52; frame

60; Driving case

100; Height and height adjustment device

102; Control bar

103; Left bar

104; Right bar

110,111; Adjuster

120; Auxiliary wheel combination

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the preferred embodiment of the present invention for achieving the above object.

Figure 3 is a front view of the walk-type mowing machine to which the technique of the present invention is applied, Figure 4 is a perspective view of the frame portion of the walking mowing device that is the main part of the present invention, Figure 5 is a cross-sectional view taken along the line A-A of Figure 4, Figure 6 is a perspective view of the height adjusting device to which the technique of the present invention is applied, Figure 7 is a perspective view of the portion B of Figure 4, Figure 8 is a plan view of the power transmission relationship to which the technique of the present invention is applied.

The walk type harvester 50 is equipped with an engine 51 in the rear and the front end and the tip of the harvesting frame 55 in which the harvesting device 54 for cutting crops is connected to the front, and the harvesting frame 55 in the lower side of the side. It has a main frame 52 having an auxiliary frame 53 connected to the lower end of the unit integrally.

A harvesting conveying unit provided with a multi-stage dividing plate 57 which is inclined upwardly with a packer 56 for inducing crops entering rearward from the side of the harvesting frame 55 and discharging the harvested crops laterally. 58 is provided.

The drive case 60 is installed below the main frame 52 to receive power from the engine 51.

An upper side of the drive case 60 is provided with a drive shaft 62 fixing the pulley 61 and connected to the pulley 64 and the belt 65 fixed to the output shaft 63 taken out from the engine 51 by the engine ( 51) to receive power.

The drive shaft 62 is integrally provided with a transmission 66 having a plurality of transmission gears to shift the high rotation transmitted from the engine to be suitable for driving, mowing and conveying operations.

A clutch for taking out the mowing drive shaft 67 to the side of the transmission 66 and connecting the drive unit of the mowing device 54 and the joint shaft 68 to the front, and selecting whether or not to transmit power to the mowing device 54. It is connected to the bevel gear box (70) having a (69).

The sprocket 72 is fixed below the transmission 66 to the chain drive shaft 71 to receive power from the gear of the transmission 66 to be fixed to the drive shaft 73 installed below the drive case 60. It is connected to the sprocket 74 and the chain 75 so as to transmit power to the wheel (76).

A plurality of fixing holes 73 ′ are formed in the drive shaft 73 at equal intervals so that the width of the wheels 76 connected to the drive shaft 73 can be changed so as to easily cope with the change in the work place and the moving path.

The rear of the main frame 52 is connected to the engine, the governing lever 77 and the clutch 69 on the side of the bevel gearbox 70 to control the engine speed to transfer power to the mowing device 54. The operation handle 80 having the mowing clutch lever 78 for controlling is fixed.

In front of the operation handle 80 is provided with a shift lever 81 connected to the transmission 66 to select the forward and reverse of the mowing machine 50, the lower portion of the drive case 60 and the main frame 52 Between the front phase is a configuration that is provided with a height, the height adjustment device 100 for adjusting the cutting height of the crop harvested by the mowing machine (50).

In the present invention, the height, height adjustment device 100 of the walk-type harvester 50 is improved to enable a substantial height, height adjustment.

To this end, in the present invention, the driving shafts are provided at both sides of the lower ends of the drive case 60 located at the center of the main frame 52 so as to receive power from the engine 51 to drive the harvesting device 54 and the wheels 76. The control bar 102 is inserted into the boss 101 is formed integrally to support the bearing interposed in 73 and protrudes above the main frame 52.

The control bar 102 is composed of a left bar 103 and a right bar 104 to facilitate assembly and disassembly, and a pipe body 105 for inserting into the boss 101 at lower ends of the left and right bars 103 and 104. Fixing, the upper end is provided with a horizontal bar 106 to limit the movement (flow) of the control bar 102, one side is fixed to the welding of any one of the left and right bars (103, 104) and the other side bolt nut combination 107 To be fixed by

Left and right bars (103, 104) constituting the control bar 102 to form a plurality of control holes (110, 111) at equal intervals to be fixed on the main frame 52 at the position where the control bar 102 passes ( It is to be interrupted by the control pin 114 through the coupling hole 113 formed in 112.

The tubular body 105 inserted into the boss 101 formed at the lower end of the driving case 60 is left by the fixing bolt 107 and the adjusting pin 114 provided at the middle position and the upper end of the adjusting bar 102. The gap between the right and left bars 103 and 14 is easily prevented from being separated or flowed, and when the height and the height are adjusted, the tubular body 105 is free to move with the boss 101.

Of course, the boss 101 'also protrudes on the upper side of the drive case 60 to be coupled to the tubular body 105' fixed to the bracket 52 'which is fixed to the main frame 52 by bolts. This adjustment allows the drive case 60 to easily cope with the angle change.

In the center of the rear end portion of the main frame 52 is further provided with a conventional auxiliary wheel combination 120 is composed of a handle 115, a control bar 116 and a free movement wheel 117, the height, height is adjusted. To support the walk-type mower 50 in a stable state.

The walk-type harvester 50 of the present invention configured as described above moves the walk-type harvester 50 to a position to work by starting the engine 51.

At this time, by cutting the clutch 69 provided on the side of the bevel gear box 70 by controlling the mowing clutch lever 78 provided in the operation handle 80 to cut off the power transmitted to the mowing device 54 to the wheel ( 76) to drive only, if you want to perform the mowing operation after moving to the working position by connecting the clutch 69 using the mowing clutch lever 78 to transfer the power to the bevel gear box 70 mowing device By allowing power to be transmitted to 54, the harvesting device 54 connected to the bevel gear box 70 and the joint shaft 68 may be operated.

When the harvesting operation is performed as described above, the crops enter between the grass dividing plates 57 of the cutting conveying unit 58 and are cut by the harvesting device 54, and the crops before and after the cutting are lowered under the dividing plates 57. Induced by the packer 56 provided in the undisturbed and helps to be discharged to the side of the mowing conveying portion (58).

If you want to adjust the cutting height, the height of the crop before or during the mowing operation as described above;

After stopping the movement of the walking type mowing device 50 while driving and adjusting the handle 115 so that the cutting conveying unit 58, the wheels 76, and the wheels 117 all touch the ground, the boss of the driving case 60 ( The control pins 102 fixed to the 101 and protruding upward of the main frame 52 are separated from the control pins 114 that couple the brackets 112 fixed to the main frame 52.

Then, the handle 115 of the auxiliary wheel combination 120 of the walk-type mower 50 is rotated forward or again. Rotate in the reverse direction to adjust the cutting height of the walk-type mowing machine 50 to the desired position and then recombining the control pin 114 that was released.

At this time, the control pins (110, 111) formed in the left and right bars (103, 104) of the adjustment bar 102 and the coupling holes 113 formed in the bracket 112 are matched, and then the adjustment pin 114 is inserted.

Adjusting the height and height of the auxiliary wheel combination 120 to the screw or screw means provided in the interior of the control bar 116 by rotating the handle 115 provided above the control bar 116 in the forward or reverse direction As a result, the lower wheel 117 rises and falls, thereby enabling natural height and height adjustment.

As the height and height control relationship of the auxiliary wheel combination 120 as described above corresponds to conventional technical means, detailed description thereof will be omitted.

As the above-mentioned walking type harvester 50 is advanced while the height and the height are adjusted as described above, the height of the cutting conveying unit 58 is maintained by the wheel 76 and the auxiliary wheel combination 120. There is no phenomenon that the cutting height of the crop to be changed, the operator does not have to adjust the force holding the operation handle 80 to facilitate the adjustment work.

The walk type harvester 50 of the present invention as described above, because the height adjustment is made by the adjustment hole (110, 111) and the adjustment pin 114, even if the external pressure such as vibration or shock that may occur during driving is adjusted once You can stick to the old status.

In particular, since the auxiliary wheel combination 120 further provided at the rear of the main frame 52 supports the mowing machine 50 together with the wheels 76 in a stable state, the height and the height are continuously maintained. Crops can be mowed at a constant height.

As described above, the present invention improves the height and height adjusting device and further includes an auxiliary wheel on the frame, so that one operator can easily adjust the height of the walking device and adjust the height and height more reliably. By making it possible to maintain a controlled state continuously and has the effect of more efficient harvesting of crops.

Claims (3)

The engine 51 is mounted on the rear side and has an auxiliary frame 53 connected to the upper end of the harvesting frame 55 in which the harvesting device 54 is placed on the front side, and connected to the lower end of the harvesting frame 55 on the bottom side. Mainframe 52; The harvesting frame 55 includes a harvesting conveying unit 58 having a packer 56 for inducing crops and discharging harvested crops and a multi-stage dividing plate 57 installed upwardly inclined; A drive case 60 installed below the main frame 52 so as to receive power from the engine 51; The drive case 60 includes a drive shaft 62 having a pulley 64 fixed to the output shaft 63 taken out from the engine 51 and a pulley 61 connected to the belt 65; A transmission 66 having a plurality of transmission gears in the drive shaft 62; Bevel gear box having a clutch 69 for taking out to the side of the transmission 66, connected to the drive unit of the harvesting device 54 and the joint shaft 68, and selects whether or not to transmit power to the harvesting device 54 ( A cutting drive shaft 67 connected with the driving shaft 70; A sprocket 72 fixed to the chain drive shaft 71 receiving power from the gear of the transmission 66; A drive shaft (73) connected to the sprocket (72) and the chain (75) to transmit power to the wheel (76); It is fixed to the rear of the main frame 52 and connected to the engine, the governing lever 77 and the clutch 69 on the side of the bevel gearbox 70 to control the engine speed is transferred to the mowing device 54 An operation handle 80 having a mowing clutch lever 78 for controlling the driving force; Height and height of the walk-type mowing device 50, which is provided in front of the operation handle 80 is connected to the transmission 66, and comprises a shift lever 81 for selecting the forward, backward of the mowing device (50). In configuring the adjusting device 100; A control bar 102 inserted into the boss 101 formed at both sides of the lower ends of the driving case 60 positioned at the center of the main frame 52 and protruding upward of the main frame 52; The control bar 102 is composed of a left bar 103 and a right bar 104 to facilitate assembly and disassembly; The left and right bars 103 and 104 constituting the adjusting bar 102 include a plurality of adjusting holes 110 and 111 at equal intervals; On the main frame 52 through which the adjustment bar 102 is passed, further comprising a bracket 112 having a coupling hole 113, the walking type, characterized in that to control the control bar 102 by the control pin 114 Mowing machine. The method of claim 1; In the center of the rear end portion of the main frame 52 is further provided with a conventional auxiliary wheel combination 120 is composed of a handle 115, a control bar 116 and a free wheel 117 is adjustable height, height Walk type mower, characterized in that The method of claim 1; A lower body of the left and right bars 103 and 104 constituting the adjusting bar 102 and a tubular body 105 provided as a means for engaging with the boss 101; A horizontal bar (106) provided at upper ends of the left and right bars (103, 104) for limiting the movement of the adjustment bar (102); One side of the horizontal bar (106) is welded and fixed to any one of the left and right bars (103,104) and the other side is a walk-type mower, characterized in that fixed by the bolt nut combination (107).