JP3164263B2 - Track truck for orbital tea leaf picking machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of laying a single rail between ridges of tea ridges planted in rows and running the laying rail between left and right ridges sandwiching the tea ridges as a pair of tracks. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track bogie of a track-type tea leaf pruning machine capable of performing various operations such as plucking, pruning, and controlling tea leaves over the entire surface of a tea plantation.

[0002]

2. Description of the Related Art The above-mentioned orbit-type tea leaf picking machine is conventionally known, and is disclosed, for example, in Japanese Patent Laid-Open Publication No.
Prior art described in Japanese Unexamined Patent Publication No. 4-91716 and the like is known, and the present applicant has also proposed the prior art described in Japanese Unexamined Patent Publication No. 4-320613.

[0003] This type of device is a gate-shaped bridge that straddles a tea tree ridge between left and right rail trucks moving along the rail, with a rail laid between left and right ridges sandwiching the tea tree ridge as a pair of tracks. A frame is erected, and a plucking device provided with a cutting portion and a bag receiving portion over the entire surface of the tea tree ridge is vertically movably mounted on the gate-shaped frame. Then, when performing the plucking operation of the tea leaves, the truck is moved forward with the cutting blade lowered to the pruning depth of the tea tree ridge, and the advancing work of the tea leaves is performed while the plucked tea leaves are stored in the bag. Progress,
When the plucking operation on the predetermined path is completed, the cutting blade is raised to a predetermined height, and is returned at a high speed to the pruning start end, the stored tea bag is replaced, and the next plucking operation is started.

[0004]

By the way, when various operations (tea picking, pruning, pest control, etc.) in a tea garden are performed using the above-mentioned orbit-type tea leaf pruning machine, in a tea garden on a slope, the following is required. There was such a problem.

[0005] In a tea plantation on a sloping land, as shown in Fig. 10, there may be a difference in height between the laying rails b and c between the left and right ridges sandwiching the tea tree ridge a. When the rails b and c run as a pair of tracks, a gate-shaped frame d installed between the left and right rail trucks and a plucking device e supported between the left and right supports of the gate-shaped frame are provided with a mowing part. When the hem heights h on both sides are substantially the same, the picking device e running on the rails b and c is greatly inclined in the inclination direction as shown by a two-dot chain line, and a component force acts on the rails b and c in the inclination direction by gravity. The specific gravity on the valley side of the slope increases. In this case, in the conventional track-type truck picking machine of a tea picking machine, the supporting portions of the rolling wheels f and g traveling on the rails b and c are
Since the rolling wheels f and g are fixed to the respective bogie frames, the rolling wheels f and g are inclined with respect to the rails b and c by phantom lines, and the rolling wheels f and g are moving at a specific gravity on the slope valley side. g
However, there is a problem that a phenomenon in which the wheel slips off from the rails b and c and derails easily occurs.

Further, in the prior art, the right and left track bogies running on the rails and the column portion of the portal frame provided between the left and right bogies are integrally formed. In order to correct the inclination, it is necessary to employ a means to extend the support of the valley-side portal frame as a means of correcting the inclination angle.In this method, the strength of the portal frame is weakened by the extension of the support, and the stability is reduced. Loss of performance leads to adverse effects on running performance, and in addition to the need for special telescopic cylinders to extend the column of the frame, the structure becomes large and complicated. .

[0007] The present invention has been proposed in view of the above-mentioned problems, and the phenomenon that the rolling wheels of the track bogie are derailed from the rails even when there is a height difference between a pair of rails in a tea garden on an inclined ground is derived. It is another object of the present invention to provide a track truck of a track-type tea leaf picking machine capable of easily correcting the inclination angle of the picking device and improving running performance.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a track-type tea leaf pruning machine which has been proposed in the prior art. At the rear, there are idle front wheels 21 and driving rear wheels 22 that run on the rail 1, and the front wheels 21 and the rear wheels 2
The front, rear, left and right wheel support frames 2b, 2c are fixed by two fastening bolts 25, 26 vertically separated from the rail 1 axis, and the bolt holes through which the upper bolts 25 are inserted are lower bolts. 26 is formed on the bogie frame 2a so as to be capable of tilting and deflecting in the left-right direction. The wheel supporting frame 2b is provided on a slope where there is a height difference between the right and left track bogies 2. , 2c with fastening bolts 25, 2
6, the floating front wheel 21 and the driving rear wheel 22 are configured to change their positions on the vertical line of the rail 1 axis and receive the vertical load of the fuselage on the rail 1 by being tilted and displaced to the left and right via 6. It is characterized by having.

Further, according to the present invention, a plurality of bolt insertion holes 27a, 28a and a plurality of bolt insertion holes 27a, 28a are formed on the right and left bogie frames 2a of the right and left rail bogies 2 by vertically lowering columns 3a to 3d of left and right rows of a gate-shaped frame 3 installed between the bogies. Connecting pillars 27 and 28 which extend and contract are connected to each other via fixing bolts 27b and 28b. Another feature is that 27a and 28a are selected, connected and fixed by fixing bolts 27b and 28b, and each of them is configured to be independently adjustable in height.

[0010]

According to the above construction, when a track-type tea leaf picking machine is used in a tea plantation on a sloping ground, there is a height difference between a pair of rails laid between ridges, and a gate-shaped frame and a picking frame installed between carts. Even if the device is tilted, the floating front wheel and the driving rear wheel of the track bogie traveling on the rail can be positioned on the vertical line of the rail axis, so that the phenomenon that the rolling wheel derails from the rail during traveling does not occur.

In addition, since the right and left columns of the gate-shaped frame to be erected between the right and left track bogies can be independently adjusted in height so that the height can be adjusted independently of each other, the mowing portion and the bag can be moved by the telescopic operation. The plucking device with the receiving part moves up and down integrally, so that the height of the plucking device can be easily adjusted with one touch, and the inclination angle of the plucking device can be easily corrected by extending the column only on the lower side In addition, it is possible to improve the deterioration of running performance derived from the inclination.

[0012]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 and FIG. 2 show the entire orbital type tea leaf pruning machine, and reference numeral 1 denotes a rail laid between each row of the tea tree rows planted in rows. In a track-type tea leaf picking machine, two rails 1, 1 laid between left and right ridges across a row of tea ridges form a pair of tracks, and move along the pair of rails 1, 1. Between the left and right rail trucks 2,2,
A gate-shaped frame 3 spanning a tea tree ridge is erected, and a plucking device 4 having a cutting portion and a bag receiving portion over the entire surface of the tea tree ridge is vertically movably mounted between the left and right columns of the gate-shaped frame 3. Configuration.

First, the track bogie 2 will be described. A bogie frame 2a extending in the front-rear direction along the rail 1 includes:
As usual, the front free wheel 21 is provided at the front end, and the driving rear wheel 2 is provided at the rear end.
And 2. The driving rear wheel 22 is configured to transmit torque from the driving rear wheel 22 via a chain transmission system 24 by a wheel driving motor 23.

The idle front wheel 2 provided on the bogie frame 2a
1 and the drive rear wheel 22 are arranged on one side (the left side in FIG. 1) of the front and rear wheels 21 and 2 on the track bogies 2 in the left and right rows.
2 is formed in a U-shape so that each outer periphery is fitted to the pipe-made rail 1 and its lateral movement is regulated. 1
Even if there is a slight gap between the facing distances, the width is configured to correspond to this. The floating front wheel 21 corresponding to a wide width has a configuration in which the outer periphery is formed in a bibon shape and has a width capable of moving a required width on the rail 1 left and right. On the other hand, as shown in FIG. 7, a wide rear driving wheel 22 is supported by a wheel supporting frame 2c on an angular shaft 2d through which rotational force is transmitted from a chain transmission system 24. 22 is slidably inserted to the left and right.
The coil springs 2e and 2f are wound on both sides of the driving rear wheel 22, and the driving rear wheel 22 is normally located at the center position of the axial length of the square shaft 2d, and is located at the facing distance between the left and right rails 1 and 1. If there is a gap, the coil spring 2e or 2
f is compressed and can be moved in the left-right direction.

Each of the bogie frames 2 of the right and left track bogies 2
As shown in FIG. 3, the floating front wheel 21 and the driving rear wheel 22 provided for the respective wheel support frames 2b, 2b,
2c is supported by the bogie frame 2a so as to be tiltable and displaceable to the left and right positions of the rail axis with respect to the rails 1 and 1. In other words, the respective wheel support frames 2b and 2c of the idle front wheel 21 and the driving rear wheel 22 are positioned with respect to the front end and the rear end of the bogie frame 2a.
It is fixed by two fastening bolts 25 and 26 which are vertically separated from each other. In this case, a bolt hole through which the upper bolt 25 is inserted is formed in an arc-shaped long hole centered on the lower bolt 26. The wheel support frames 2b, 2c
Is tilted in the left-right direction about the lower bolt 26 so that the floating front wheel 21 and the driving rear wheel 22 are displaced to the left and right with respect to the axis of the rail 1.

According to such a configuration, as shown in FIG. 10, on an inclined land where a height difference occurs between the left and right rails 1, 1, the wheels that support the floating front wheel 21 and the driving rear wheel 22 of each bogie are supported. The supporting frames 2b and 2c are tilted and deviated to the higher side in the tilting direction and fixed, so that the floating front wheels 21 and the driving rear wheels 2 provided on the right and left rows of the trucks 2 and 2, respectively.
2 can be located on the vertical line of the rail axis with respect to the rails 1 and 1 as shown by the solid line in FIG.

Further, in the present invention, the lower portions of the front and rear columns 3a, 3b and 3c, 3d of the left and right columns of the gate-shaped frame 3 to be erected between the carts 2, 2 are vertically arranged on the left and right cart frames 2a. Connecting struts 27, 2 that extend and contract
8 stands. A plurality of height adjusting bolt insertion holes 27a,
28a are provided, and arbitrary bolt insertion holes 27a, 28a
And by connecting and fixing them with bolts 27b and 28b, the left and right columns 3a and 3b (or 3c and 3d) of the left and right columns of the gate-shaped frame 3 are respectively connected to the bogie frames 2a of the right and left rows of track trucks. Separately, the height can be adjusted independently.

According to such a configuration, as shown in FIG. 10, the rail cars 2, 2 running on the left and right rails 1, 1 are used.
On a slope where there is a difference in elevation, the lower bogie frame 2
By extending the fitting connection between the connecting posts 27 and 28a and the front and rear posts 3a and 3b or 3c and 3d of the portal frame 3 connected thereto, the portal frame 3 and the portal frame 3 are supported. The inclination angle of the plucking device 4 can be appropriately corrected.

The portal frame 3 is formed of a hollow square pipe material, and has two front and rear columns 3a, which are erected in right and left rows.
The tops of 3b, 3c, and 3d are connected by horizontal members 3e and 3f to form a gate, and the front and rear columns are connected by joint members 3g and 3h. The columns 3a, 3b, 3c, 3d of the gate-shaped frame 3 are provided with elevating members 5a, 5b, 5c, 5d each having a clamping roller, and the elevating members 5a, 5b, 5 provided on the columns in the right and left rows, respectively.
The picking device 4 is vertically movably mounted between the left and right columns of the portal frame 3 as a set of c and 5d.

The elevating bodies 5a, 5b, 5c, 5d are moved up and down by a drive motor 51 provided on the top of the front column 31 of the gate-shaped frame 3, and the front columns 3a, 3c are arranged in right and left rows. Is provided with an elevating guide 52 for guiding the holding rollers of the elevating bodies 5a and 5c. FIG. 4
As shown in the figure, a spiral shaft 53 rotatably driven by the power transmission from the drive motor 51 is rotatably supported in the square pipe of the front column 3a, and a slider 54 meshed with the spiral shaft 53 is provided.
Although not shown, it is connected to the lifting / lowering body 5a and the plucking device 4, so that the lifting / lowering body 5a and the plucking device 4 move up and down in conjunction with the vertical movement of the slider 54 by the rotation of the spiral shaft 53. ing. The rotational power from the drive motor 51 is transmitted through a bevel gear 55 shown in FIG. 4 by a transmission shaft 56 housed in a square pipe of the horizontal member 3e to form a spiral in the front column 3c on the other side (not shown). The rotational force is also transmitted to the shaft, so that the right and left rows of the elevating bodies 5a and 5c move up and down at the same time, and the left and right sides of the plucking device 4 move up and down at the same time.

The pruning device 4 is provided at its front part with a cutting section having a width extending over the entire surface of the tea tree ridge. A clipper blade 4a that bends at an arc curvature is provided.
An engine 4b and a blower fan 4c driven by the engine are separately provided on both left and right sides of the machine frame. The clipper blade 4a is driven so as to reciprocate as usual by power transmitted from an engine 4b mounted on one side of the machine frame via a cutting blade drive mechanism (not shown).
An air guide duct 4d is connected to the blower fans 4c mounted on the left and right as usual.
Is extended into the cutting width center position of the hair clipper blade 4a and is divided into two parts, and a large number of blowing nozzles 4e project at predetermined intervals from the left and right divided air guide ducts 4d. As shown in FIG. 5 and FIG. 6, the air guide duct 4 d is suspended at a position above the front part of the clipper blade 4 a,
Pressure air is blown rearward from the front position of the hair clipper blade 4a through the blowing nozzle 4e, so that the bag receiving portions 41 and 42 having tea leaves picked by the hair clipper blade 4a at the rear.
Through a tea bag (not shown) attached thereto.

The above-mentioned bag receiving portions 41 and 42 are provided with the clipper blades 4.
The tea leaves plucked by the clipper blade 4a are divided into two parts, a right half part and a left half part with respect to the cutting width according to a. The receiving portions 41 and 42 are accommodated in two tea bags attached to the rear openings. At this time, the tea leaves plucked at the center of the cutting width of the hair clipper blade 4a are inserted into the bag receiving portions 41 of the right half and the left half.
So that it can be diverted to 42 and stored in a tea bag without leaking,
As shown in FIGS. 5 and 6, a bag receiving portion 41 divided into a right half portion and a left half portion is provided at the rear portion of the cutting width center position of the clipper blade 4a.
An intermediate partition frame 43 is provided at an intermediate position of 42, and a rotary brush 44 that is driven to rotate around a vertical axis is provided at a front portion of the intermediate partition frame 43. Then, by rotation of the brush 44, the tea leaves plucked at the center of the cutting width of the hair clipper blade 4a are distributed rightward or leftward, and are directed toward the right half or left half bag receiving portions 41, 42 by the middle partition frame 43. I try to be guided. The above-described rotating brush 44 is driven by a motor 45 disposed on the upper part thereof.

The above-mentioned bag receiving portions 41 and 42 divided into the right half and the left half have a tunnel shape with front and rear portions opened. 48
Is secured to the reaping unit by being hooked on the upper rear frame 4f of the reaping unit machine frame. In this fixed state, the lower plate 41a of each of the bag receiving portions 41, 42 is located slightly above the lower frame lower plate 4g (see FIG. 5) of the mowing portion.
a and the bag mounting tables 46 and 47 connected thereto are slightly inclined obliquely rearward and upward. With this inclination, when the track truck 2 is backed and returned after the plucking operation on the predetermined path is completed, the bag receiving portions 41 and 42 and the bag mounting tables 46 and 46 connected to the bag receiving portions 41 and 42 are connected by the weight of the stored tea leaves. 47
Even if it deflects downward, the phenomenon of contact with the picking upper surface of the tea tree ridge does not occur and the tea tree is not damaged.

At the rear opening of each of the above-mentioned bag receiving portions 41 and 42, a hook fitting 49 for detachably mounting the opening of the tea bag is provided on both sides thereof. Each of the bag receiving portions 41, 4
2, so that a tea bag can be set in the rear opening.
In the bag receiving portions 41 and 42 provided with the above-described latch fittings 48 and the hook fittings 49, the tea bag is attached to the left and right bag receiving portions 41 and 42 in advance, and the left and right bag receiving portions 41 are further attached. , 42 can be fixed in a set state with respect to the upper rear frame 4f of the reaping unit, so that the bag receiving portions 41, 42 can be attached to and detached from the reaping unit with one touch, and the working efficiency can be improved.

At the rear of the right and left half bag receiving portions 41 and 42, there are provided tea leaf bag mounting tables 46 and 47 mounted on the rear openings of the bag receiving portions 41 and 42, respectively. Bag mounting table 46,
The middle portion of 47 is a concave space portion so that the tea bag can be easily attached and detached.

The track bogie 2 is provided with a limit switch 11 at a front portion of a floating front wheel 21 provided at a front end of a bogie frame 2a, and a limit switch 12 at a drive rear wheel 22 side. I have. The limit switch 11 has a function of automatically stopping the advance of the track truck 2 at a required plucking operation end position by contacting the operation member with a stopper 13 (see FIG. 10) provided on the rail 1 at the operation stop position. The limit switch 12 provided on the side of the driving rear wheel 22 is used to raise the plucking device 4 after the plucking operation of the required route is completed and to return to the work start end position at a high speed. The back traveling of the track truck 2 is operated at a low speed by contacting the first stopper 81 provided on the ridge moving truck 8 shown in FIG. It works to stop automatically.

The portal frame 3 is provided with a generator 6 on one side, a control box 7 having an antenna on the other side, and a battery 9. As shown in FIG. 9, the control panel 7a provided in the control box 7 has an operation button 7e for instructing the plucking position from the raised position, an operation switch 7c for controlling the height level of the plucking device 4 up and down, At the time of work, the rotation speed of the engine 4b, the on / off operation of power transmission to the clipper blade 4a,
A travel button 7f for instructing the rear wheels 23 of the track bogie 2 to move forward at low speed, and a travel button 7g for instructing high speed back
And an emergency stop button 7h for emergency stop of traveling, and a switch 7k for switching work to a work program for plucking and controlling.
And operation knob 7 for finely adjusting the work speed to low and high speeds
m, 7n, etc. are provided.

The height of the picking device 4 is set in the microcomputer in advance, and the height of the lifting device 5a, 5
The rotation of the transmission system (sprocket 51a) of the drive motor 51 for operating the b, 5c, 5d is controlled by the proximity switch 51b.
Is detected and controlled by the microcomputer of the control box 7. When the travel button 7f is operated at the same time as the operation button 7e, the programmed engine speed and power transmission to the clipper blade are turned on / off, and the work is started at a low speed forward. The slot wire is pulled by the engine control cylinder 4h shown in FIG.
The on / off control of the transmission of power to a is performed by pulling the tension wire of the cutting blade drive mechanism by the cutting blade control cylinder 4k also shown in FIG.

Next, an example of an operation mode performed by using the orbital type tea picking machine configured as described above will be described. The tea picking machine is mounted on the ridge moving cart 8 shown in FIG. 9, and the right and left rows of the rail carts 2 and 2 enter the rails 1 and 1 at the starting end side of the tea ridge for picking work. At the start of the work, the generator 6 is started, and the cutting height of the plucking device 4 is set by the switch 7c provided on the control panel 7a of the control box 7. Next, the engine 4b is started, the operating button 7e of the control panel 7a is operated to lower the plucking device 4 to the plucking position, the running button 7f is turned on, and the engine 4b is driven by the engine control cylinder 4h and the cutting blade control cylinder 4k. Is rotated at a high speed, the clipper blade 4a is driven, and the picking operation is started with the rotating brush 44 also rotated at the same time.

At the time of the plucking operation, the running of the rail truck 2 moves forward at a low speed, and in this progressing process, the tea leaves are plucked by the clipper blade 4a of the cutting section, and the plucked tea leaves are blown from the blowing nozzle 4e of the air guide duct 4d. The air is blown rearward by the applied pressure wind and is stored in the tea leaf bags set in the bag receiving portions 41 and 42 of the right half and the left half. During this plucking operation,
The pruned tea leaves at the center of the cutting width, which have been cut with the clipper blade 4a,
It is divided right and left by the rotation of the brush 44 and is diverted by the middle partition frame 43 to be guided to the left and right bag receiving portions 41 and 42, so that even if the entire surface of the tea tree ridge is cut at a stretch, the plucked tea leaves fall off. No crop loss. And when it reaches the preset work end position,
The operator of the limit switch 11 provided on the front side of the idle front wheel 22 is provided with a stopper 13 provided on the rail 1 at the work stop position.
, The advance of the track bogie 2 automatically stops at the picking operation end position. When the plucking operation of the required route is completed and automatically stopped, the plucking device 4 rises to a preset back position height, and the rail truck 2 returns to the picking start start position at a high speed. When the operator of the limit switch 12 provided on the side of the rear wheel 23 comes into contact with the first stopper 81 provided on the ridge moving carriage 8, the back running becomes slow, and The back traveling of the track 2 is automatically stopped by the contact.

When pruning a long tea tree ridge, it is necessary to adjust the amount of tea leaves to make it easier to transport.
The plucking distance is set by the counter 7p provided in the above.
The proximity switch 24b detects the number of rotations of the sprocket 24a provided in the chain transmission system 24 of the driving rear wheel 22 of the track bogie 2 by the proximity switch 24b.
Is controlled by the microcomputer.

If the tea garden on which the above-described plucking operation is performed is on an inclined ground and there is a height difference between the rails 1, 1 on which the right and left track trucks 2, 2 run, the floating front wheel 21 provided on each truck frame 21 and the drive The wheel supporting frames 2b and 2c of the rear wheel 22 are tilted and displaced toward the higher side in the tilt direction and fixed. When fixed in this manner, each floating front wheel 21 of the track bogies 2 and 2 in the left and right rows
And the driving rear wheel 22 is located on the vertical line of the rail axis with respect to the rails 1, 1, so that the track truck 2,
The phenomenon in which the idle front wheel 21 and the drive rear wheel 22 of the second wheel derail from the rails 1 and 1 does not occur.

If there is a height difference between the rails 1 and 1, and the portal frame 3 and the plucking device 4 supported between the rails 2 and 2 in the left and right rows are greatly inclined, the lower truck is used. The connecting columns 27, 28 of the frame 2a and the front and rear columns 3a, 3b or 3c, 3d of the portal frame 3 connected thereto are extended in a fitting connection portion to support the portal frame 3 and the portal frame 3. Since the inclination angle of the plucking device 4 can be appropriately corrected, thereby reducing the reaction force due to the movement of the position of the center of gravity in the inclination direction, the traveling performance is improved.

[0034]

As described above, according to the track bogie according to the present invention, the left and right track bogies 2 have front and rear freewheels 21 and drive rear wheels which run on the rail 1 at the front and rear portions of the bogie frame 2a. 22, the front wheel 21 and the rear wheel 2
The front, rear, left and right wheel support frames 2b, 2c are fixed by two fastening bolts 25, 26 vertically separated from the rail 1 axis, and the bolt holes through which the upper bolts 25 are inserted are lower bolts. 26 is formed on the bogie frame 2a so as to be capable of tilting and deflecting in the left-right direction. The wheel supporting frame 2b is provided on a slope where there is a height difference between the right and left track bogies 2. , 2c with fastening bolts 25, 2
6, the floating front wheel 21 and the driving rear wheel 22 change their positions on the vertical line of the rail 1 axis to receive the vertical load of the fuselage on the rail 1. The position of the floating front wheel 21 and the driving rear wheel 22 provided on each bogie frame 2a is easily changed on the rail 1 serving as a running track on the vertical line of the rail 1 axis by fastening bolts 25 and 26, and When performing various operations such as plucking, pruning, pest control, etc. in a tea plantation on a slope where a height difference occurs between a pair of rails 1 because the load is received by the rails 1, traveling which was derived from a conventional rail truck. This has the effect of preventing the wheel derailing phenomenon during running and improving the running stability.

The bogie frames 2 of the right and left track bogies 2
a, the lower portions of the columns 3a to 3d of the left and right rows of the gate-shaped frame 3 erected between the bogies are vertically inserted into a plurality of bolt insertion holes 27a,
Connecting columns 27, 28 which extend and contract via connection bolts 28a and fixing bolts 27b, 28b are erected, and the columns 3a to 3 in the left and right columns of the gate-shaped frame 3 are provided for the track bogies 2 in the left and right columns.
d is connected and fixed by fixing bolts 27b and 28b by selecting arbitrary bolt insertion holes 27a and 28a, and the height of each of them can be adjusted independently of each other.
On a slope where a difference in height occurs between the left and right sides, the lower frame 2a is connected to the portal frame 3 connected to the lower frame 2a.
The length of the columns 3a to 3d is determined by the bolt insertion holes 27a and 28a.
In addition, since it can be easily expanded and contracted by the fixing bolts 27b and 28b, it is possible to easily correct the inclination angle of the portal frame 3 and the plucking device 4 supported by the portal frame when traveling on an inclined ground, whereby the position of the center of gravity in the inclination direction can be adjusted. Since the reaction force due to the movement can be reduced, it is possible to obtain effects such as improvement in traveling performance.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing one embodiment of a track-type tea leaf picking machine provided with a track truck according to the present invention.

FIG. 2 is an overall side view of the orbital type tea leaf picking machine.

FIG. 3 is an enlarged perspective view showing a part of a single row of track trucks.

FIG. 4 is a cross-sectional view showing an elevating mechanism of the plucking device supported on the portal frame.

FIG. 5 is a side sectional view showing a part of a cutting unit and a bag receiving unit of the plucking device.

FIG. 6 is a plan view showing a part of a cutting section and a bag receiving section of the plucking device.

FIG. 7 is a half sectional front view showing a wide-width driving rear wheel provided in the track bogie.

FIG. 8 is a front view showing a control panel of a control box.

FIG. 9 is a perspective view showing a usage example of the ridge moving cart.

FIG. 10 is an explanatory diagram of an operation on a sloped land.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Rail 11,12 Limit switch 13 Stopper 2 Track truck 2a Truck frame 21 Idle front wheel 22
Drive rear wheel 23 Drive motor 24 Chain transmission system 2b, 2c Wheel support frame 2d Square shaft 2e, 2f Coil spring 25, 26 Fastening bolt 27, 28 Connection support column 27a, 28a Bolt insertion hole 27b, 28b Fixing bolt 3 Portal frame 3a, 3b, 3c, 3d Column 3e, 3f Lateral member 3g, 3h Joint member 4 Plucking device 4a Clipper blade 4b Engine 4c
Blower fan 4d air guide duct 4e blow nozzle 4f
Upper rear frame 4g Bottom frame lower plate 4h Engine control cylinder 4k Cutting blade control cylinder 41, 42 Bag receiving part 41a Lower plate 43 Middle partition frame 44 Rotary brush 45
Motors 46, 47 Bag mounting table 48 Latches 49
Hooks 5a, 5b, 5c, 5d Lifting body 51 Drive motor 52 Lifting guide 53
Spiral shaft 54 Slider 55 Bevel gear 56
Transmission shaft 51a Sprocket 51b Proximity switch 6 Generator 7 Control box 7a Control panel 7b Power switch 7c Switch 7d Height setting counter 7e Operation button 7f, 7g Run button 7h Emergency stop button 7k Work changeover switch 7m, 7n
Operation knob 7p Distance setting counter 8 Row moving cart 81 First stopper 82 Second stopper 9 Battery

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-320613 (JP, A) JP-A-5-168331 (JP, A) JP-A 53-150754 (JP, U) JP-A 45- 7081 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 46/04

Claims (2)

(57) [Claims] A rail (1) is laid between each row of tea ridges planted in rows, and the rails (1) laid between two rows of ridges are moved along the rail (1) as a pair of tracks. A gate-shaped frame (3) that straddles a tea tree ridge is erected on the left and right track bogies (2), and the cutting section (4a) and the bag receiving sections (41, 42) covering the entire surface of the tea tree ridge are mounted on the gate-shaped frame (3). )
In a track-type tea leaf picking machine provided with a picking device (4) having a vertical movement, the right and left track trucks (2) are provided with the bogie frames (2).
a) a front front wheel (21) having a floating front wheel (21) running on a rail (1) and a driving rear wheel (22) at a front portion and a rear portion thereof;
1) and the respective front and rear and left and right wheel support frames (2) of the rear wheel (22).
b, 2c) are vertically separated from the rail (1) axis .
Secure with two fastening bolts (25, 26)
Bolt (25) is inserted through the lower bolt
(26) is formed in an arc-shaped long hole and is attached to the bogie frame (2a) so as to be tiltable and deflectable in the left-right direction. On an inclined land where there is a height difference between the left and right track bogies (2). , The above-mentioned wheel support frames (2b, 2c) are connected with fastening bolts (2
5 and 26), the front wheel (21) and the rear drive wheel (22) change their positions on the vertical line of the axis of the rail (1) to fix the vertical load of the body. A track truck of a track-type tea leaf picking machine, wherein the track is received by a rail (1). 2. A gantry frame (3) installed between the bogies on the bogie frames (2a) of the left and right track bogies (2).
A plurality of bolt insertion holes (27a, 28a) and fixing bolts (27)
b, 28b) and connecting columns (2
7, 28) provided upright, the strut of the left and right columns of the portal frame to the track guided vehicle (2) of the right and left columns (3) (3 a to 3 d), Ren
Select the desired bolt insertion holes (27a, 28a)
2. The track bogie for a track-type tea picking machine according to claim 1, wherein the track bogie is connected and fixed by bolts (27b, 28b), each of which can be independently adjusted in height.