JP2006246729A - Bale-wrapping apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bale-wrapping apparatus which can smoothly accurately and quickly transfer roll bales from a roll baler to a bale wrapper to wrap the roll bales with films, even when traveling on a curved route, and can similarly smoothly accurately and quickly transfer the roll bales from the roll baler to the bale wrapper to wrap the roll bales with the films, even when the roll bales are formed in a frustum shape. <P>SOLUTION: This bale-wrapping apparatus 10 which is provided with a roll baler 11 for collecting hays and then forming roll bales 40, and with a bale wrapper 12 for holding the roll bales 40 formed with the roll baler 11 and wrapping the roll bales with films, travels, forms the roll bales, simultaneously wraps the roll bales with the films, is characterized by having a steering mechanism 64 capable of operating the bale wrapper 12 so that the bale wrapper 12 has a turning posture corresponding to the turning posture of the roll baler 11, when turning. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bale wrapping apparatus, and more particularly to a bale wrapping apparatus that creates a roll bale while a roll baler and a bale wrapper travel and wraps the created roll bale.

In general, in pastures, roll balers are used to collect grass, straw, and the like by rake for feed.
This roll baler is configured to pick up the grass from the ground with a pick, feed the grass into the chamber with a feed rotor, create a short cylindrical grass lump called a roll bale in the chamber, and discharge it to the outside. Yes.

  The roll bale thus created by the roll baler is then wrapped by a film and stored as feed in the collection site. The work for creating the roll bale and the work for wrapping the created roll bale by the film Since it was conducted as a separate and independent farming work, if the roll bale was created and then left on the ground in the pasture, the quality of the feed would be reduced. From the viewpoint of ensuring good quality of grass, it is necessary to wrap the roll bale quickly.

In particular, when the rain is encountered, the deterioration of the quality is remarkable. Therefore, when the roll bale is formed, it is necessary to quickly wrap and protect the roll bale.
Bale wrappers are used to wrap such roll bale. The bale wrapper includes a dump table for placing the roll bale and a lift arm for placing the roll bale on the dump table from the ground, and winds the film on the roll bale placed on the dump table. It is configured as follows.

  Therefore, conventionally, in order to wrap a roll bale produced by a roll baler with a film without taking time, a bale wrapper is coupled to the rear part of the roll baler by an appropriate means, and the roll baler and the bale wrapper are connected by a traveling device such as a tractor. When grass is collected by pulling and the roll bale created by the roll baler is discharged to the ground, the baling wrapping work is also performed by collecting the roll bale with the bale wrapper and wrapping it with the film. It was.

However, when carrying out the wrapping work in this way, the traveling direction is changed as necessary, depending on the condition of the ground in the pasture or when traveling in a corner portion of the pasture, and the vehicle travels with a large curve. There is a need.
When traveling with such a large curve, the bale wrapper follows the direction of travel of the preceding roll baler, so that the travel angle of the roll baler itself does not match the travel angle of the bale wrapper itself.

  Therefore, the roll bale discharged from the roll baler and falling to the ground approaches the bale wrapper that runs backward while rolling. Is not picked up by the lift arm of the bale wrapper, the roll bale is not placed on the dump table of the bale wrapper, and the film cannot be quickly wrapped. There were many cases.

  Moreover, the roll bale discharged | emitted from the roll baler may not roll well according to the uneven | corrugated condition of grass or the ground, and may not fully approach a bale wrapper. In such a case, it is necessary to make the tractor run again and bring the bale wrapper closer to the roll bale to pick up, which is very complicated.

Furthermore, the roll bale may be formed in a truncated conical shape instead of a short cylindrical shape due to vibration or operation error during the travel of the roll baler.
In such a case, the roll bale discharged from the roll baler to the ground rolls while tilting toward the small-diameter end, even when traveling in a straight line. Without being picked up by a bale wrapper traveling behind the roll baler.
From such a viewpoint, a bale wrapping apparatus in which a bale wrapper is joined to a rear portion of a roll baler via a connecting means has been proposed (Patent Document 1).
JP-A-4-84828

  Such a conventional bale wrapping apparatus includes a roll baler that forms a roll bale, and a bale wrapper that is connected to a rear portion of the roll baler so as to be swingable and joined via a connection frame fixed to the bale wrapper. The roll bale is formed by the roll baler while the grass is collected while traveling by pulling the roll baler with a towing vehicle such as a tractor, and then the roll bale is transferred from the roll baler to the bale wrapper through the connection frame. It is configured to be wrapped by a film and discharged to the ground.

That is, the roll bale discharged from the roll baler rolls on a transfer plate disposed in the connection frame, is transferred onto a lift arm provided on the bale wrapper, and is conveyed onto the table by the lift arm. It is configured to be wrapped by a film.
In the conventional bale wrapping apparatus configured as described above, the connecting frame is swingably connected to the roll baler, but in the case of traveling while curving the corner portion of the pasture, Since the bale wrapper follows the direction of travel of the preceding roll baler, the roll baler travel angle and the angle of the bale wrapper and the connecting frame do not coincide with each other during curve travel.

As a result, as in the case of the above-described conventional baling wrapping operation, the roll bale discharged from the roll baler does not roll well on the transfer plate and is not picked up by the lift arm, or in some cases falls off to the ground. There were also many situations that ended up.
In addition, when the roll bale is formed in a truncated cone shape instead of a columnar shape due to the operation error of the roll baler, it does not roll straight on the transfer plate in the same manner as described above and runs behind the roll baler. In some cases, the bale wrapper did not pick up well.

  Then, even if it is a case where the corner part of a pasture is curving and driving, the subject of the present invention is to transfer a roll bale from a roll baler to a bale wrapper smoothly and surely to wrap with a film. To provide a bale wrapping device capable of being smoothly and reliably transferred from a roll baler to a bale wrapper and quickly wrapping with a film even when the roll bale is formed in a truncated cone shape. It is in.

In order to solve such a problem, in the invention according to claim 1, a roll baler that collects grass and creates a roll bale, and a film that is connected to the roll baler and holds the roll bale created by the roll bale A bale wrapping apparatus that creates a roll bale while traveling and wraps it with a film while traveling, so that, when turning, the bale wrapper has a turning posture corresponding to the turning posture of the roll baler. A steering mechanism capable of steering the wrapper is provided.
Therefore, in the invention according to the first aspect, the bale wrapper follows the roll baler well when turning.

  The invention according to claim 2 is characterized in that the bale wrapper is connected to a rear portion of the roll baler. Therefore, in the invention described in claim 2, the bale wrapper travels following the roll baler behind the roll baler.

  According to a third aspect of the present invention, the roll baler is pulled by a traveling device that travels in front of the roll baler, and the steering mechanism is provided in the roll baler and can detect the turning posture of the traveling device during turning. It is provided with a detection device and a steering device provided in the bail wrapper and driven in conjunction with the detection hydraulic cylinder.

  Therefore, in the invention described in claim 3, the detection device detects the turning posture of the traveling device that pulls the roll baler, and the steering device is driven in conjunction with the detection device. It is possible to quickly match the turning posture of the traveling device.

  According to a fourth aspect of the present invention, the detection device includes a detection hydraulic cylinder and a piston disposed in the detection hydraulic cylinder so as to be movable back and forth in the axial direction. The piston is fixed to the traveling device so as to detect the traction direction and the traction angle by the traveling device, and the steering device is a hydraulic pressure for steering. A cylinder and a piston disposed in the steering hydraulic cylinder so as to be movable back and forth in the axial direction. The steering hydraulic cylinder is fixed to a frame portion of the bale wrapper, and the piston is provided in the bale wrapper. It is connected to the wheel steering part.

Therefore, in the invention described in claim 4, the detection hydraulic cylinder fixed to the roll baler detects the pulling direction and the pulling angle of the traveling device that travels in front of the roll baler and pulls the roll baler, and the detection hydraulic cylinder. The steering hydraulic cylinder linked to the cylinder operates a wheel steering section provided in the bale wrapper according to the pulling direction and pulling angle.
In the present invention, the detection hydraulic cylinder and the steering hydraulic cylinder are connected by a hydraulic supply pipe, and the hydraulic pressure generated according to the movement amount of the piston of the detection hydraulic cylinder is the hydraulic supply. It is transmitted to a hydraulic cylinder for steering via a pipe, and is configured to drive a piston of the hydraulic cylinder for steering.

Therefore, in the invention described in claim 5, the traction direction and the traction angle of the traveling device that pulls the roll baler, detected by the detection hydraulic cylinder fixed to the roll baler, are used for steering via the hydraulic supply pipe. It is transmitted to the hydraulic cylinder and drives the piston of the steering hydraulic cylinder.
In the invention according to claim 6, the hydraulic supply pipe includes a first hydraulic supply pipe provided between one end of the detection hydraulic cylinder and one end of the steering hydraulic cylinder; It is characterized by comprising a second hydraulic pressure supply pipe provided between the other end of the detection hydraulic cylinder and the other end of the steering hydraulic cylinder.

Therefore, in the invention described in claim 6, when the piston moves in the detection hydraulic cylinder, the hydraulic pressure is supplied via the first hydraulic pressure supply pipe or the second hydraulic pressure supply pipe. The piston, which is supplied to the steering hydraulic cylinder and disposed in the steering hydraulic cylinder, is driven.
The invention according to claim 7 is characterized in that the first hydraulic pressure supply pipe and the second hydraulic pressure supply pipe are provided with a reservoir tank storing replenishment oil.
Accordingly, in the invention described in claim 7, since the reservoir tank capable of supplying replenishment oil to the first hydraulic pressure supply pipe and the second hydraulic pressure supply pipe is provided, In situations such as when the hydraulic pressure changes due to fluctuations, it is possible to cope with the deterioration in the supply of hydraulic pressure from the detection hydraulic cylinder to the steering hydraulic cylinder.

In the invention according to claim 8, the piston of the steering hydraulic cylinder gives a steering angle of an angle corresponding to the turning angle to the wheel of the bale wrapper in a direction opposite to the pulling direction. The wheel steering unit is operated as described above.
Therefore, in the invention described in claim 8, since the rudder angle of the angle opposite to the traction direction of the traveling device and corresponding to the turning angle is given, the bale wrapper is adjusted to the turning angle of the traveling device. Drive the curve at the corresponding turning angle.
Therefore, since the bale wrapper quickly follows even when the traveling device that pulls the roll baler changes direction, it is possible to maintain substantially the same turning angle with respect to the roll baler.

The invention according to claim 9 is characterized in that the traveling device is a tractor.
Accordingly, in the invention described in claim 9, the roll baler and the bale wrapper travel while being pulled by the tractor, create the roll bale and wrap it with the film.
Accordingly, the detection device detects the traction direction and the traction angle of the tractor with respect to the roll baler, and transmits the traction direction and the traction angle to the steering device.
As a result, since the bale wrapper is steered in accordance with the tractor pulling direction and the pulling angle, it maintains substantially the same turning angle with respect to the roll baler when traveling on a curve.

Therefore, even during curve travel, the bale wrapper connected to the rear of the roll baler does not always change its posture behind the roll baler, and the time during which the travel angle between the roll baler and the bale wrapper is different is minimized.
The invention according to claim 10 is characterized in that the traveling device is a rake vehicle.
Therefore, in the invention described in claim 10, the detection device detects the traction direction and the traction angle of the rake wheel with respect to the roll baler, and transmits the traction direction and the traction angle to the steering device.
As a result, the bale wrapper is steered in accordance with the traction direction and the traction angle of the rake wheel, and therefore maintains substantially the same turning angle with respect to the roll baler when traveling on a curve.

Therefore, even during curve travel, the bale wrapper connected to the rear of the roll baler does not always change its posture behind the roll baler, and the time during which the travel angle between the roll baler and the bale wrapper is different is minimized.
In the invention described in claim 11, the roll baler is provided with a transfer mechanism for transferring the roll baler to the bale wrapper while holding the formed roll baler.
Therefore, in the invention described in claim 11, since the roll bale is transferred to the bale wrapper while being held, the roll bale does not roll and transfer to the bale wrapper as in the prior art.

In the invention according to claim 12, the bale wrapper includes a dump table on which a roll bale is placed and a film is wound thereon, and a lift arm on which the roll bale is placed on the dump table, The transfer mechanism includes an arm that can transfer the roll bale onto the lift arm and a drive unit that can drive the arm.
Therefore, in the invention described in claim 12, the roll bale produced by the roll baler is transferred onto the lift arm while being held by the arm.

  In the invention according to claim 13, the arm part is provided with a contact arm part that comes into contact with the roll bail, and is connected to both ends of the contact arm part so that the base end part is pivotally supported. The drive unit is joined to the support arm unit, the arm unit is rotated about the shaft unit, and the roll bale is transferred onto the lift arm of the bale wrapper. It is comprised so that it may be obtained.

In the invention described in claim 14, the arm portion is formed in a U-shape, and the abutting arm portion abuts a lower portion of the roll bale formed in the roll baler to hold the roll bale from below. Thus, the roll bale can be transferred onto the lift arm without rotating.
Therefore, in the invention described in claim 14, the roll bale is held from below and transferred onto the lift arm.

  In the invention of claim 1, when the bale wrapping device travels in a curved state with an angle close to a right angle, for example, in a corner portion of a pasture, the roll baler changes its direction. Even when the turning posture is taken, the bale wrapper is provided with a steering mechanism that can correspond to the turning posture of the roll bale, and the bale wrapper also takes a turning posture corresponding to the roll baler. The bale wrapper follows the roll baler quickly and there is no significant angular difference between the roll baler and the bale wrapper during turning.

As a result, the roll baler can smoothly and reliably transfer the roll bale to the bale wrapper, and the roll bale is quickly wrapped by the film by the bale wrapper.

In the invention according to claim 2, as a result, the roll baler changes its direction when, for example, the corner portion of the pasture has to travel in a curved state with a turning angle close to a substantially right angle. Even when the swiveling posture is taken, the bale wrapper takes a swiveling posture corresponding to the roll baler at the rear of the roll baler and quickly follows, so there is a large angle difference between the roll baler and the bale wrapper during turning. Absent.
As a result, the roll baler can smoothly and reliably transfer the roll bale to the bale wrapper, and the roll bale is quickly wrapped by the film by the bale wrapper.

  In the invention according to claim 3, when the traveling device turns in a state where the roll bale is pulled, the bale wrapper becomes the same with the turning direction of the traveling device by the steering device without any time interval. , Follow the roll baler pulled by the traveling device well, and no significant difference in running posture with the roll baler occurs, so the roll baler created by the roll baler is reliably transferred even during turning Can be done.

According to the fourth to sixth aspects of the present invention, the traction direction and the traction angle of the traveling device that travels in front of the roll baler is detected using the hydraulic cylinder, and the hydraulic pressure is supplied to drive the steering hydraulic cylinder. Since it is comprised, a bale wrapper can be made to follow a roll baler also during curve driving | running | working, without complicating the structure of a steering mechanism.
As a result, it is possible to provide a bale wrapping device that does not increase the manufacturing cost and has a low possibility of failure and excellent followability during turning.

In the invention of claim 7, for example, in summer, the oil pressure filled in the oil pressure supply pipe rises due to high temperature, and in some cases, the oil pressure supply pipe may crack and break. However, in such a situation, when the hydraulic pressure supply pipe is replaced, oil can be quickly supplied from the reservoir tank.
In winter, the oil pressure decreases due to the low temperature, and the oil pressure detected by the detection hydraulic cylinder may not be accurately supplied to the steering hydraulic cylinder. In such a case, oil can be appropriately replenished from the reservoir tank so that the hydraulic pressure can be supplied accurately and good steering performance can be ensured.

  In the invention according to claim 8, the bail wrapper is provided with a rudder angle opposite to the turning direction and corresponding to the turning angle with respect to the wheels of the bale wrapper when the bale wrapping device turns. Will trace the same turning trajectory as the traveling device traveling in front of the roll baler, and will follow the roll baler traveling in front quickly and satisfactorily without delay, and as a whole perform very efficient turning motion Can do.

In the invention of claim 9, the bale wrapper traces substantially the same turning trajectory as the tractor traveling in front of the roll baler, and follows the roll baler traveling in front quickly and well without delay. As a whole, the turning motion can be performed very efficiently.
In the invention according to claim 10, the bale wrapper traces substantially the same turning trajectory as the rake wheel traveling in front of the roll baler, and follows the roll baler traveling in front quickly and satisfactorily without delay. As a whole, the turning motion can be performed very efficiently.

In the invention of claim 11, the roll bale is formed in a truncated conical shape instead of a short cylindrical shape due to, for example, vibration during travel during manufacturing of the roll bale or a manufacturing error. Even if it exists, since the roll bale rolls on the ground or the transfer plate as in the prior art and is not transferred to the bale wrapper, it is reliably transferred to the bale wrapper.
As a result, in the invention of claim 11, the roll baler is reliably and quickly wrapped by the bale wrapper regardless of the quality of the roll baler.

  In the inventions according to claims 12 to 14, since the roll bale is provided with an arm for transferring the lift to the lift arm, it is not necessary to roll on the ground, and it is a case where it is formed in a truncated cone shape. However, since the roll bale does not roll on the ground or on the transfer plate and is transferred to the bale wrapper as in the prior art, it is surely transferred to the bale wrapper.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, a bale wrapping apparatus 10 according to the present embodiment includes a roll baler 11 that collects grass and creates a roll bale, and a roll that is connected to the roll baler 11 and created by the roll baler 11. A bale wrapper 12 that holds the bale and wraps with a film is provided, and is configured to create a roll bale while running and wrap with a film.

  The total bale wrapping apparatus 10 according to the present embodiment has a steering mechanism 64 that can steer the bale wrapper 12 so that the bale wrapper 12 has a turning posture corresponding to the turning posture of the roll baler 11 when turning. ing.

  In the present embodiment, the roll baler 11 is connected to the rake wheel 13, and the rake wheel 13 is connected to the tractor 14. As a whole, the tractor 14 is connected to the rake wheel 13, the roll baler 11, and the bale wrapper 12. Towing.

  The rake wheel 13, the roll baler 11, and the bale wrapper 12 are formed so that they can be used individually and independently. However, as in the present embodiment, the rake wheel 13, the roll baler 11, and the bale wrapper 12 are connected to each other and pulled by the tractor 14 as a whole. The bale wrapping apparatus 10 can be used simultaneously. The tractor 14 is a general-purpose tractor and is equipped with a traction device 15 at the rear end.

As shown in FIGS. 1 and 2, the rake wheel 13 includes a channel-shaped traction frame 16, a pair of rotary rakes 17 and 17 disposed on both sides in an intermediate portion of the traction frame 16, and the traction frame. 16 and a rear wheel portion 18 disposed at the rear end portion.
The rotary rakes 17, 17 include rotor arms 26, 26 that are foldably fixed to the traction frame 16, and rotors 19, 19 that are rotatably disposed in the horizontal direction at the tip ends of the rotor arms 26, 26. And have. Eight rake arms 20 are fixed to each rotor 19 along the width direction, and a rake 21 is fixed to the tip of the rake arm 20 so as to protrude toward the ground.

The rear wheel portion 18 changes its direction at the same time via a link portion 28 at both ends of the rear wheel frame 24 disposed so as to be orthogonal to the rear end portion of the traction frame 16. The rear wheels 18 and 18 are arranged in a possible manner. The rear wheels 18 are configured to be steered by a steering mechanism (not shown) in conjunction with the horizontal swing of the front hitch 22.
A pair of caster wheels 23, 23 are provided below the rotor 19, and the caster wheels 23, 23 and the rear wheels 18, 18 are pulled by the tractor 14 or the like to move pastures in pastures. The rake 21 can be used for collection.

  A front hitch 22 is disposed at the tip of the traction frame 16 and is formed so as to be connected to the tractor 14. A rear hitch 25 is provided at the center of the rear wheel frame 24. It is formed to be connectable to the roll baler 11.

As shown in FIGS. 3 and 4, the roll baler 11 is connected to the rake wheel 13 via the rear hitch 25 of the rake wheel 13.
As shown in FIG. 5, the roll baler 11 according to the present embodiment is configured to create a roll bale 40, which has a short cylindrical gap inside, and is disposed below the front portion of the chamber 30. Is provided with a pick 31 for picking up the grass collected by, and a feed rotor 32 disposed at the rear of the pick 31 for sending the grass to the chamber 30.

As shown in FIG. 4, a cylindrical steel roll 39 pivotally supported along the width direction and rotatably arranged in the chamber 30 has a plurality of circumferential side surfaces.
Further, as shown in FIG. 5, in the chamber 30, a large number of driven shafts 125 with sprockets arranged at both ends are arranged along the width direction at the vertical end of the gap forming the chamber 30. The tight chain 124 is wound around the multiple driven shafts 125.
The tight chains 124 are disposed at both ends in the width direction of the chamber 30, a large number of tight bars 126 are fixed between the two tight chains 124, 124, and both the tight chains 124, 124 are connected by the tight bar 126. ing.
The tight chain 124 is composed of a front tight chain 124a and a rear tight chain 124b, and has a front tension arm 122 and a driven shaft 125b that are configured to swing in the vertical direction about the driven shaft 125a. The front tight chain 124a is rotated in the direction of arrow A and the rear tight chain 124b is rotated in the direction of arrow B with appropriate tension applied by the rear tension arm 123 configured to be able to swing in the vertical direction. Is configured to do.
Accordingly, the lump of grass fed into the chamber 30 by the feed rotor 32 is initially converted into the front tight chain 124a rotating in the A direction and the tight chain 124b rotating in the B direction. It is formed in a state of being sandwiched and formed as a small short cylindrical roll bale 40a. Thereafter, grass is gradually supplied and added by the feed rotor 32, and the roll bale 40a gradually grows in diameter.
As the roll bale 40a grows, the tension arm 122 and the tension arm 123 swing upward to form the peripheral surface portion of the roll bale 40, and finally, the height direction dimension of the gap in the chamber 30 is substantially the same. A short cylindrical roll bale 40b having a diameter of 5 mm is produced.

On the other hand, the chamber 30 is divided and formed by a front chamber portion 35 and a rear chamber portion 36, and the rear chamber portion 36 can be rotated about an axis portion 33 provided at the upper end portion to open rearward. It is configured.
When the roll bale 40 is formed, the front chamber part 35 and the rear chamber part 36 are integrally formed to form the chamber 30, and when the roll bale 40 is completed and needs to be discharged backward, the rear chamber part 36 is opened / closed by a chamber opening / closing device 34 provided on both sides around the shaft 33.

The chamber opening / closing device 34 includes a chamber cylinder 42 fixed to the front chamber portion 35 obliquely upward and rearward, and a piston arm 43 disposed in the chamber cylinder 42 so as to be able to advance and retract.
The piston arm 43 is fixed to the upper portion of the rear chamber portion 36, and the piston arm 43 is moved forward and backward by hydraulic pressure. When the piston arm 43 is advanced, the rear chamber portion 36 is flipped rearward around the shaft portion 33. When the piston arm 43 is retracted, the rear chamber portion 36 is pivotally closed around the shaft portion 33 and is integrated with the front chamber portion 35 to form the chamber 30. Yes.

Therefore, when the production of the roll bale 40 is completed, the rear chamber part 36 opens and discharges the roll bale 40 rearward. When the discharge of the roll bale 40 is completed, the rear chamber part 36 is closed and the next Prepare for the creation of the roll bale 40.
A traction rod 27 projects forward from the front end portion of the chamber 30, and a coupling device 37 with a traction vehicle is disposed at the front end portion of the traction rod 27. Further, below the chamber 30, wheels 38 are provided on both the left and right sides, and caster wheels 29 are provided on both sides of the pick 31.

  In the present embodiment, the rear chamber portion 36 is provided with a transfer device 41 for the roll bale 40. The transfer device 41 is configured to transfer the roll baler 40 created in the chamber 30 to the bale wrapper 12 while holding it.

As will be described later with reference to FIG. 6, the bale wrapper 12 includes a dump table 83 on which the roll bale 40 is placed and a film is wound thereon, and a lift arm 51 on which the roll bale 40 is placed on the dump table 83. is doing.
The transfer device 41 includes a transfer arm 44 that can transfer the roll bale 40 onto the lift arm 51, and drive units 45 and 45 that can drive the transfer arm 44.

The transfer arm 44 is pivotally supported by the shaft portions 46 and 46 at the intermediate portion in the height direction of the rear chamber portion 36 of the chamber 30 and is disposed along the width direction of the chamber 30. It is formed in a shape.
The transfer arm 44 includes a contact arm portion 47 disposed along the width direction in the lower portion of the chamber 30 that contacts the roll bail 40, and a base end portion that is connected to both ends of the contact arm portion 47. A support arm portion 48 that is pivotally supported by the shaft portions 46, 46, is formed by bending in a side surface “reverse shape”, and is disposed along the height direction of the chamber 30. Have.

The drive portions 45, 45 are a pair of drive cylinders 49, 49 disposed on both sides of the rear end portion of the front chamber portion 35 of the chamber 30, and are disposed in the drive cylinders 49, 49 and are advanced and retracted by hydraulic pressure. The piston arms 50 and 50 are configured such that the distal end portions of the piston arms 50 and 50 are fixed to the base end portion of the support arm portion 48 so as to be rotatable.
The drive cylinders 49, 49 are disposed along the front-rear direction of the chamber 30, and the piston arms 50, 50 advance and retreat in the front-rear direction of the chamber 30.

Therefore, when the drive unit 45 is driven and the support arm portion 48 that is normally retracted is advanced by hydraulic pressure, the transfer arm 44 rotates to the rear of the roll baler 11 around the shaft portions 46 and 46. The roll bale 40 can be moved rearward by the contact arm 47.
In the present embodiment, the creation of the roll bale 40, the discharge of the roll bale 40, the operation of the transfer device 41, the conveyance of the roll bale 40, and the placement operation on the lift arm 51 are electrically controlled. This is done automatically by operating the control box.

As shown in FIG. 6, the bale wrapper 12 has a main body frame portion 52, a side-face L-shaped gate 53 standing above the main body frame portion 52, and a rear end portion of the gate 53. Side-shaped U-shaped film rotor 54.
Wheels 55, 55 are disposed on both sides of the rear end portion of the main body frame portion 52, and a connecting arm 121 extends from the front end portion of the main body frame portion 52. Is connected to the roll baler 11 and can be pulled by a tractor or the like.

A lift arm 51 is pivotally supported at the front end portion of the main body frame portion 52 by a shaft portion 58 so as to be rotatable in the vicinity of the base end portion 59, and a driving device 60 is mounted on the base end portion 59 of the lift arm 51. Is connected.
The drive device 60 includes a cylinder 61 fixed along the front-rear direction of the main body frame portion 52, and a drive arm 62 that is built in the cylinder 61 and is configured to be movable forward and backward by hydraulic pressure. The drive arm 62 is pivotally connected to the base end portion 59 of the lift arm 51. The base end portion of the lift arm 61 is swung by the forward and backward movement of the drive arm 62 due to the hydraulic pressure. The arm 51 rotates in the vertical direction from the front part to the center part of the roll baler 12 around the shaft part 58.

  A dump table 83 is disposed on the main body frame portion 52 below the film rotor 54, and the roll bale 40 created by the roll baler 11 connected to the front is disposed in front of the main body frame portion 52. So that the lift arm 51 driven by the drive device 60 is rotated and lifted, and the roll bale 40 is arranged on the dump table 83 without rolling on the ground. It is configured.

The film rotor 54 is provided with film rolls 81 and 81 wound around the roll bale 40 at each front end, and is rotated along the horizontal direction by a rotation drive unit 84 provided at the front end of the gate 53. The film is wound while rotating in the left-right direction with respect to the roll bale 40 disposed on the dump table 83 and disposed between the rolls 81 and 81 in the vertical direction.
A stopper arm 56 protrudes from the rear end portion of the main body frame portion 52, and the roll bale 40 rotated in the vertical direction by the stopper portion 63 formed at the end portion and discharged backward is moved to the left or right side. It falls over and is placed on the ground.

  Operations such as transfer of the roll bale 40 by the lift arm 51, placement on the dump table 83, lapping of the roll bale 40 by the roll film 81, and discharge of the wrapped roll bale 40 are also electrically controlled and automatically performed. This is done according to the operation by the controller.

As shown in FIGS. 1, 7, and 8, in the present embodiment, when the bale wrapping device 10 is turned, the bale wrapper 12 has a turning posture corresponding to the turning posture of the roll baler 11. A steering mechanism 64 that can steer the bale wrapper 12 is provided.
The steering mechanism 64 is provided on the roll baler 11 and is provided on the bale wrapper 12 and can be driven in conjunction with the detection device 65, which can detect the turning posture of the rake wheel 13 during turning. And a steering device 82 for steering the roll baler 11.

  As shown in FIGS. 7 and 8, the detection device 65 includes a detection hydraulic cylinder 66 and a piston arm 67 disposed in the detection hydraulic cylinder 66 so as to be able to advance and retreat, and the detection hydraulic cylinder. 66 is fixed to a traction rod 27 provided at the front end of the roll baler 11, and the piston arm 67 is connected to the rake wheel 13 so that the traction direction and the traction angle of the rake wheel 13 can be detected. Yes.

That is, a traction rod 27 formed in a substantially Y-shape is provided at the front end portion of the roll baler 11, and is provided at the center in the width direction of the rear wheel frame 24 of the front rake wheel 13 by the traction rod 27. The hook portion 119 is pivotally connected along the vehicle body width direction.
The traction rod 27 has base portions 70 and 70 fixed so as to be orthogonal to the width direction of the planar rectangular vehicle body of the roll baler 11, and a bifurcated portion 71 extending from the base portions 70 and 70. ing.

The detection hydraulic cylinder 66 is fixed in parallel to the traction rod 27 by appropriate fixing means 69 on the right side of the plane of the traveling direction of the base end portion 68 of the traction rod 27. As a result, the detection hydraulic cylinder 66 is fixed to the roll baler. 11 planar rectangular vehicle bodies are arranged so as to be orthogonal to the width direction.
A flat trapezoidal flange portion 72 is provided on the side of the coupling device 37 provided at the tip of the bifurcated portion 71, and a flat plate-like link plate 73 is rotated around the flange portion 72 by a shaft portion 74. The front end portion of the piston arm 67 is rotatably fixed to the side end portion of the link plate 73 and the rear end portion in the traveling direction via a shaft portion 78.

On the other hand, a fixing portion 79 is provided on the right side in the advancing direction of the rear hitch 25, and a link arm 75 is fixed to the fixing portion 79 via a shaft portion 76 so as to be rotatable. The other end portion of the link arm 75 is fixed to the front end portion in the moving direction of the link plate 73 via a shaft portion 77 so as to be rotatable via the shaft portion 77.
As a result, a link mechanism 80 joined to the piston arm 67 is formed by the link arm 75 and the link plate 73.

Therefore, as shown in FIG. 7, when the rake wheel 13 and the roll baler 11 are traveling straight, the piston arm 67 is in an intermediate position state in which many parts are housed in the cylinder 66. When the leading tractor 14 turns leftward and the rake wheel 13 turns leftward as well, as shown in FIG. 8, a link arm fixed to the rear hitch 25 so as to be rotatable by a shaft portion 76. 75 is rotated by the shaft portion 76, pulls the piston arm 67 in the axial direction via the link plate 73, and advances forward from the cylinder 66.
On the contrary, when the rake wheel 13 turns to the right, the piston arm 67 is similarly pushed rearward along the axial direction by the link arm 75 via the link plate 73, and as a result, the piston The arm 67 is configured to retract into the cylinder 66.

  The detection hydraulic cylinder 66 is connected to a steering hydraulic cylinder 92 constituting a steering device 65, which will be described later, via a hydraulic supply pipe 109, and the angle in the traveling direction of the rear wheel frame 24 when the rake wheel 13 turns. The amount of movement change of the piston arm 67 in the detection hydraulic cylinder 66 caused by the change is transmitted by hydraulic pressure to drive the steering device 82.

On the other hand, as shown in FIG. 9, the bail wrapper 12 is provided with a steering device 82. The steering device 82 is attached to the main body frame portion 52 of the bail wrapper 12.
As shown in FIGS. 9 to 11, the steering device 82 is provided between the width direction frames 87 and 88 constituting the main body frame portion 52. The steering device 82 includes a drive unit 90 and a transmission mechanism 91 that transmits the driving force of the drive unit 90 to steer the wheels 55 and 55.

The drive unit 90 includes a steering hydraulic cylinder 92 and a piston arm 93 that is built in the steering hydraulic cylinder 92 along the axial direction. The steering hydraulic cylinder 92 is fixed along the width direction of the main body frame portion 52 in an inner width direction frame 87.
On the other hand, at the rear end portion of the main body frame portion 52, wheels 55 and 55 are attached to the left and right longitudinal frames 94 and 94 to axle mounting portions 107 and 107 via axle mounting members 106 and 106, respectively. Yes.

  The axle attaching portions 107 and 107 project outwardly in the longitudinal frames 94 and 94 constituting the main body frame portion 52, and the axle portions 85 and 85 of the wheel 55 are provided on the axle attaching members 106 and 106, respectively. Is attached to the axle attaching portions 107 and 107 via the turning shaft portions 98 and 98 so as to be able to turn a predetermined angle in the left-right direction in the traveling direction along the plane direction of the main body frame portion 52. ing. Under the axle mounting members 106, 106, rotating plate portions 95, 95 are disposed.

A fixing frame 96 for the transmission mechanism 91 is provided along the length direction at the center in the width direction of the width direction frame 87. The transmission mechanism 91 includes a link mechanism 99 provided on the back side of the fixing frame 96.
The link mechanism 99 is pivotally attached to the distal end portion of the piston arm 93 so as to be rotatable by a shaft 105, and is attached to the fixing frame 96 in a state where the link plate 100 is fixed. Link shaft portion 101, one end portion fixed to the link shaft portion 101, two pitman arms 102 and 103 rotating together with the link shaft portion 101, and one end portion on the other end portion of the pitman arms 102 and 103. The tie rods 104 and 104 are rotatably fixed by the shafts 105 and 105 and the other end portions thereof are rotatably connected to the rotating plate portions 89 and 89 by the shaft 108.

The steering hydraulic cylinder 92 is coupled to the detection hydraulic cylinder 66 via a hydraulic pressure supply pipe 109 as shown in FIGS. In the present embodiment, the hydraulic pressure supply pipe 109 is formed by a flexible synthetic resin hose.
As shown in FIG. 1, one end of the hydraulic supply pipe 109 is connected to the detection hydraulic cylinder 66 and is disposed in the length direction of the roll baler 11 and the bale wrapper 12, and the other end is a steering hydraulic cylinder 92. It is connected to the.

That is, as shown in FIG. 12, in the hydraulic pressure supply system 110 of the bale wrapping apparatus 10 according to the present embodiment, the hydraulic pressure supply pipe 109 includes a first hydraulic pressure supply pipe 111 and a second hydraulic pressure supply pipe. The hydraulic pressure supply pipe 109 is configured by 112.
That is, the first hydraulic supply pipe 111 provided between the front end portion 66a of the detection hydraulic cylinder 66 and the front end portion 92a of the steering hydraulic cylinder 92, and the rear end portion 66b of the detection hydraulic cylinder 66, The second hydraulic pressure supply pipe 112 provided between the steering hydraulic cylinder 92 and the rear end portion 92b of the steering hydraulic cylinder 92 holds oil therein, and if necessary, the first hydraulic pressure supply pipe 111 and the second hydraulic pressure supply pipe 111 And a reservoir tank 113 capable of supplying oil to the hydraulic pressure supply pipe 112.

The reservoir tank 113 communicates with the first hydraulic pressure supply pipe 111 and the second hydraulic pressure supply pipe 112 through oil supply pipes 114 and 115, and the oil supply pipes 114 and 115 have a valve portion in the middle of the pipes. 116 and 116 are provided, and the valve portions 116 and 116 are each provided with an opening / closing valve (not shown), and levers 117 and 117 that can manually operate the opening / closing valve are provided.
In the present embodiment, the first hydraulic pressure supply pipe 111 and the second hydraulic pressure supply pipe 112 are filled with oil, and the detection hydraulic cylinder 66 and the steering hydraulic cylinder 92 are filled. In this case, the piston heads 118 and 118 of the piston arm 67 and the piston arm 93 are positioned substantially in the middle of the detection hydraulic cylinder 66 and the steering hydraulic cylinder 92, respectively. The hydraulic pressure is set to balance.

  Therefore, in the present embodiment, the detection hydraulic cylinder 66 and the steering hydraulic cylinder 93 are filled with oil, and the link is caused by the change in the angle of the rear wheel frame 24 when the rake wheel 13 changes direction. When the piston arm 67 is pushed inward of the detection hydraulic cylinder 66 from the intermediate position via the mechanism 80 and the piston head 118 moves in the direction of the rear end portion 66b (in the direction of arrow A), the detection hydraulic cylinder The oil filled between the piston head 118 and the rear end 66b in 66 flows into the rear end 92b side of the steering hydraulic cylinder 92 via the hydraulic supply pipe 112, and as a result, the piston arm 93 The hydraulic pressure moves forward in the direction of the front end portion 92a (in the direction of arrow B).

  On the other hand, when the rake wheel 13 changes direction in the opposite direction, the piston arm 67 is pulled out from the detection hydraulic cylinder 66 via the link mechanism 80 due to the change in the angle of the rear wheel frame 24, and the piston head 118. Moves in the direction of the rear end portion 66b (in the direction of arrow B), the oil between the piston head 118 and the rear end portion 66a in the detection hydraulic cylinder 66 passes through the hydraulic pressure supply pipe 111 and the steering hydraulic cylinder 92. As a result, the piston arm 93 retreats toward the rear end 92b (in the direction of arrow A) by the hydraulic pressure.

  In the present embodiment, the oil stored independently in the reservoir tank 113 is appropriately supplied to both the first hydraulic supply pipe 111 and the second hydraulic supply pipe 112 as necessary. Can be supplied and replenished.

  Accordingly, in the detection hydraulic cylinder 66, the rake wheel 13 bends in the left or right direction from the intermediate position of the piston arm 67 corresponding to the state in which the rake wheel 13 is traveling straight, and the piston arm 67 is The hydraulic pressure generated when moving in the direction is supplied to the steering hydraulic cylinder 92 via one of the hydraulic supply pipes 111 and 112, and the piston arm 93 is moved to either the left or right according to the amount of movement of the piston arm 67. Move in the direction of.

As a result, the link plate 100 fixed to the piston arm 93 so as to be rotatable rotates about the link shaft portion 101 in either the left or right direction, and the pitman arms 102 and 103 are driven to rotate in either the left or right direction. Let
As a result, one of the pair of left and right tie rods 104a and 104b protrudes to either the left or right side, and the other is retracted from the side, and the rotating plate portions 95 and 95 are moved to the left or right side. By rotating the wheels 55, 55 in either direction to the left or right, the hydraulic pressure generated by the turning direction and the turning angle of the rake wheel 13 traveling in front of the roll baler 11 in the detection hydraulic cylinder 66, It is comprised so that it may rotate.

Hereinafter, the operation of the bale wrapping apparatus 10 according to the present embodiment will be described.
When the bale wrapping apparatus 10 according to the present embodiment travels on pasture, the tractor 14 is disposed at the head, and the rake wheel 13, the roll baler 11, and the bale wrapper 12 are pulled to travel.

  As shown in FIG. 7, when the entire bale wrapping device 10 is traveling straight, the rear hitch 25 and the rear wheel frame 24 of the rake wheel 13 are in a state of being substantially perpendicular to the base end portion 68 of the traction rod 27. In addition, the cylinder arm 67 of the detection device 65 constituting the steering mechanism 64 is at a substantially intermediate protruding position in the detection hydraulic cylinder 66.

In this case, as shown in FIG. 9, in the steering device 82 provided in the bail wrapper 12, the piston arm 93 is located at a substantially intermediate position in the steering hydraulic cylinder 92, and the link plate 100, the pitman arms 102 and 103. Since the wheel 55 is also in the intermediate position, the wheels 55 and 55 are also in the straight traveling position.
Then, when the bale wrapping device 10 encounters a corner portion or the like of a pasture while traveling, for example, as shown in FIG. 1, when it is necessary to turn leftward, the leading tractor 14 is directed leftward. Accordingly, the rake wheel 13 is also steered by a steering mechanism (not shown) so that the rear wheels 18 and 18 are given a steering angle in a direction opposite to the turning direction as shown in FIG. Turn left.

In this case, the rear wheel frame 24 provided at the rear end portion of the rake wheel 13 rotates leftward, and an obtuse angle is generated on the right side in the traveling direction between the traction rod 27 and on the left side in the traveling direction. An acute angle occurs.
As a result, the piston arm 67 of the detection device 65 fixed to the right side in the direction of travel of the traction rod 27 constitutes a link mechanism 80 and rotates around the link plate 73 that rotates via the shaft portion 74. The piston arm 67 is pulled forward from the intermediate position in the detection hydraulic cylinder 66 by being pulled forward by the link arm 75 movably connected.

As a result, as shown in FIG. 12, the piston arm 67 moves in the direction of arrow B, and the oil filled between the front end portion 66a of the detection hydraulic cylinder 66 and the piston head 118 is detected by the roll baler 11. The front end portion of the steering hydraulic cylinder 92 via a first hydraulic supply pipe supply 111 constituting a hydraulic supply pipe 109 disposed between the hydraulic cylinder 66 for steering and the steering hydraulic cylinder 92 of the bail wrapper 12 It flows into the 92a side and moves the piston arm 92 in the direction of arrow A.
As a result, as shown in FIG. 9, the piston arm 93 is retracted into the steering hydraulic cylinder 92, the link plate 100 is rotated clockwise around the link shaft 101, and at the same time, the pitman arms 102 and 103 are Similarly, it is rotated clockwise around the shaft portion 101. As a result, the tie rod 104a protrudes laterally and the tie rod 104b is pulled inward by the clockwise rotation of the pitman arms 102 and 103.

As a result, the tie rods 104a and 104b cause the rotating plate portions 95a and 95b to rotate clockwise about the shaft portions 98 and 98, so that the wheels 55 and 55 are opposite to the turning direction of the tractor 14 and the like. A steering angle is given.
In this case, the rudder angle is an angular amount with which the traveling angle between the rake wheel 13 and the roll baler 11 detected by the detection device 65 is different. Therefore, when the rake wheel 13 starts turning leftward. Since the ruling angle in the direction opposite to the turning direction is quickly given to the bale wrapper 12 by the same angle, the whole bale wrapping apparatus 10 has a predetermined length. The wrapper 12 traces the turning trajectory of the preceding rake wheel 12 and follows the roll baler 11 that travels quickly and well without delay, and performs the turning motion as the whole bale wrapping apparatus 10 very efficiently. be able to.
In addition, according to the data which test-operated the bale wrapping apparatus 10 which concerns on this Embodiment, the relative angle of the roll baler 11 and the bale wrapper 12 at the time of turning was 10 degrees or less.

  Therefore, even when the roll bale 40 created by the roll baler 11 is discharged backward from the roll baler 11 during the turning operation in the corner portion or the like of the bale wrapping apparatus 10, the bale wrapper 12 is excellent immediately after the roll baler 11. Since it follows, the discharged roll bale 40 will be mounted on the lift arm 51 of the bale wrapper 12 without difficulty.

Accordingly, even when the roll bale 40 is discharged from the roll baler 11 during turning, the bale wrapper 12 that reliably travels rearward is picked up and the lapping operation is performed.
Note that the bale wrapping device 10 functions in the same way as in the case of a left turn by turning the components in the right direction and performing the operations opposite to those described above.

Further, in the present embodiment, as shown in FIG. 4, the roll baler 11 is provided with a transfer device 41, and the transfer arm 44 constituting the transfer device 41 has a height of the roll baler 11 in a normal state. It arrange | positions so that it may hang down from the axial part 46 along a direction, and exists in the position of the code | symbol 44a.
After that, when the roll bale 40 is created and discharged rearward and needs to be transferred to the bale wrapper, it is driven by the drive cylinder 49 to rotate counterclockwise to the position of 44b, An abutting arm 47 that is disposed along the width direction and that constitutes the transfer arm 44 abuts on the lower part of the roll bale 40 so as to scoop up the roll bale 40.

  Since the transfer arm 44 is further rotated by the drive cylinder 49, the roll bale 40 is lifted upward from the ground, conveyed, moved rearward, and the lift arm of the bale wrapper 12 disposed behind the roll baler 11. The roll bale 40 is transferred onto the lift arm 51 so as to hardly roll during that time.

  Therefore, in the roll baler 11, the roll bale 40 is not formed in a short cylindrical shape, for example, due to a manufacturing error, but is tapered in a truncated truncated cone shape and tapered toward any one side end in the axial direction. Even when the roll bale 40 is formed on the lift arm 51, the roll bale 40 does not roll over a predetermined distance on the ground, and is configured to be placed on the lift arm 51. In addition, it is possible to prevent a situation in which the taper is curved and rolled to the small diameter side and is not picked up by the lift arm 51 of the bale wrapper 12.

In addition, in the said embodiment, although the case where the bale wrapping apparatus 10 included the rake wheel 13 was demonstrated to the example, it is not limited to the said embodiment, As shown in FIG.13 and FIG.14, the roll baler 11 is shown. The roll baler 11 may be directly coupled to the tractor 14 and the bale wrapper 12 may be connected to the roll baler 11 by incorporating the rake device.
When the bale wrapping device 120 is used in such a configuration, the entire length of the bale wrapping device 120 can be shortened, and therefore a bale wrapping device with better followability during turning can be provided. it can.
Further, the specific configuration of the steering mechanism 64 and the transfer device 41 is not limited to the above embodiment.

  INDUSTRIAL APPLICABILITY The present invention can be widely applied to an apparatus that creates a roll bale and wraps the created roll bale while the roll baler and the bale wrapper are traveling.

1 is a plan view showing an embodiment of a bale wrapping apparatus according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a rake wheel constituting an embodiment of a bale wrapping apparatus according to the present invention and constituting the bale wrapping apparatus. 1 is a plan view showing a roll baler constituting an embodiment of a bale wrapping apparatus according to the present invention. It is one Embodiment of the bale wrapping apparatus which concerns on this invention, Comprising: It is a side view which shows the transfer state of the roll baler which comprises a bale wrapping apparatus, and a roll bale. It is one Embodiment of the bale wrapping apparatus which concerns on this invention, Comprising: It is a side view which shows the process in which the structural member and roll bale which create a roll bale are created in a roll baler. It is one Embodiment of the bale wrapping apparatus which concerns on this invention, Comprising: It is a side view which shows the mounting state to the dump table of the bale wrapper which comprises a bale wrapping apparatus, and the roll bale transferred from the roll baler. FIG. 1 is a plan view showing an embodiment of a bale wrapping device according to the present invention, which is an embodiment of a detection device that constitutes a steering mechanism, and shows a state in which the bale wrapping device is traveling straight. FIG. 1 is a plan view showing a bale wrapping apparatus according to an embodiment of the present invention, showing a detection apparatus constituting the bale wrapping apparatus, and a state in which the bale wrapping apparatus is turning leftward. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of a bale wrapping device according to the present invention, showing a steering device that constitutes the bale wrapping device, and a state in which the bale wrapping device is traveling straight. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of a bale wrapping device according to the present invention, showing a steering device that constitutes the bale wrapping device and a state in which the bale wrapping device is turning leftward. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view illustrating a bale wrapping apparatus according to an embodiment of the present invention, showing a steering device that constitutes the bale wrapping apparatus, and showing a state in which the bale wrapping apparatus is traveling straight from the rear. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram showing a hydraulic pressure supply system applied to a bale wrapping apparatus, which is an embodiment showing a bale wrapping apparatus according to the present invention. It is other embodiment which shows the bale wrapping apparatus which concerns on this invention, Comprising: It is a side view which shows the case where it comprises only a tractor, a roll baler, and a bale wrapper. It is other embodiment which shows the bale wrapping apparatus which concerns on this invention, Comprising: It is a top view which shows the case where it comprises only with a tractor, a roll baler, and a bale wrapper.

Explanation of symbols

10 Bale Wrapping Device 11 Roll Baler 12 Bale Wrapper 13 Rake Wheel 14 Tractor 15 Traction Device 16 Traction Frame 17 Rotary Rake 18 Rear Wheel
19 rotor 20 rake arm 21 rake 22 forward hitch 23 caster wheel 24 rear wheel frame 25 rear hitch 26 rotor arm 27 traction rod 28 link part 29 caster wheel 30 chamber 31 pick 32 feed rotor 33 shaft part 34 chamber opening and closing device 35 front chamber part 36 Rear chamber portion 37 Coupling device 38 Wheel 39 Steel roll 40 Roll bale 41 Transfer device 42 Chamber cylinder 43 Piston arm 44 Transfer arm 45 Drive portion 46 Shaft portion 47 Contact arm portion 48 Support arm portion 49 Drive cylinder 50 Piston arm 51 Lift arm 52 Main body frame portion 53 Gate 54 Film rotor 55 Wheel 56 Stopper arm 57 Connecting portion 58 Shaft portion 59 Base end portion 60 Drive device 61 Cylinder 62 Drive arm 63 Topper portion 64 Steering mechanism 65 Detection device 66 Detection hydraulic cylinder 67 Piston arm 68 Base end portion 69 Fixing means 70 Base portion 71 Forked portion 72 Flange portion 73 Link plate 74 Shaft portion 75 Link arm 76 Shaft portion 77 Shaft portion 78 Shaft portion 79 Fixed part 80 Link mechanism 81 Roll film 82 Steering device 83 Dump table 84 Rotation drive part 85 Axle part 86 Axle mounting member 87 Width direction frame 88 Width direction frame 89 Side frame 90 Drive part 91 Transmission mechanism 92 Hydraulic cylinder for steering 93 Piston Arm 94 Longitudinal frame
95 Rotating plate portion 96 Fixing frame 97 Pitman arm 98 Rotating shaft portion 99 Link mechanism 100 Link plate 101 Link shaft portion 102 Pitman arm 103 Pitman arm 104 Tie rod 105 Axis 106 Axle attaching member 107 Axle attaching portion 108 Axis 109 Hydraulic supply Pipe 110 Hydraulic supply system 111 First hydraulic supply pipe 112 Second hydraulic supply pipe 113 Reservoir tank 114 Oil supply pipe 115 Oil supply pipe 116 Valve part 117 Lever 118 Piston head 119 Hook part 120 Bale wrapping device 121 Connection arm 122 Front Tension arm 123 Rear tension arm 124 Tight chain 125 Drive shaft 126 Tight bar

Claims (14)

A roll baler that collects grass and creates a roll bale and a bale wrapper that is connected to the roll baler and holds the roll bale created by the roll baler and wraps it with a film. A bale wrapping device for wrapping by:
A bale wrapping device comprising a steering mechanism capable of steering the bale wrapper so that the bale wrapper has a turning posture corresponding to the turning posture of the roll baler during turning. The bale wrapping apparatus according to claim 1, wherein the bale wrapper is connected to a rear portion of the roll baler. The roll baler is pulled by a traveling device that travels in front of the roll baler, the steering mechanism is provided in the roll baler, a detection device that can detect a turning posture of the traveling device during turning, and a bale wrapper, The bale wrapping device according to claim 1, further comprising a steering device that is driven in conjunction with the detection device and steers the roll baler. The detection device includes a detection hydraulic cylinder and a piston disposed in the detection hydraulic cylinder so as to be able to advance and retreat, and the detection hydraulic cylinder is fixed to a traction rod provided at a front end portion of a roll baler. The piston is fixed to the traveling device so as to detect a pulling direction and a pulling angle by the traveling device,
The steering apparatus includes a steering hydraulic cylinder and a piston disposed in the steering hydraulic cylinder so as to be capable of advancing and retracting. The steering hydraulic cylinder is fixed to a frame portion of a bale wrapper, and the piston is The bale wrapping device according to claim 2 or 3, wherein the bale wrapping device is connected to a wheel steering section provided in the bale wrapper. The detection hydraulic cylinder and the steering hydraulic cylinder are connected by a hydraulic supply path, and the hydraulic pressure generated according to the movement amount of the piston of the detection hydraulic cylinder is transmitted to the steering hydraulic cylinder via the hydraulic supply pipe. 5. The bale wrapping device according to claim 4, wherein the bale wrapping device is configured to drive a piston of the steering hydraulic cylinder. The hydraulic pressure supply path includes a first hydraulic pressure supply pipe provided between one end of the detection hydraulic cylinder and one end of the steering hydraulic cylinder, the other end of the detection hydraulic cylinder, and the steering. 6. The bale wrapping device according to claim 5, comprising a second hydraulic supply pipe provided between the other end of the hydraulic cylinder for use. 7. The bale wrapping apparatus according to claim 6, wherein a reservoir tank storing replenishment oil is provided in the first hydraulic pressure supply pipe and the second hydraulic pressure supply pipe. The piston of the steering device is configured to operate the wheel steering unit so as to give a steering angle of an angle opposite to the turning direction and corresponding to the turning angle to the bale wrapper wheel. The bale wrapping apparatus according to claim 3, wherein: 9. The bale wrapping device according to claim 4, wherein the traveling device is a tractor. 9. The bale wrapping device according to claim 4, wherein the traveling device is a rake vehicle. The bale wrapping apparatus according to claim 1, wherein the roll baler includes a transfer mechanism that transfers the roll bale to the bale wrapper while holding the formed roll bale. The bale wrapper includes a dump table on which a roll bale is mounted and a film is wound thereon, and a lift arm on which the roll bale is mounted on the dump table, and the transfer mechanism is configured to transfer the roll bale to the lift arm. 12. The bale wrapping apparatus according to claim 11, wherein the bale wrapping apparatus includes an arm that can be moved upward and a drive unit that can drive the arm. The arm portion includes a contact arm portion that contacts the roll bale, and a support arm portion that is connected to both ends of the contact arm portion and has a base end portion pivotally supported rotatably. The drive unit is joined to the support arm unit, and is configured to be able to transfer the roll bale onto the lift arm of the bale wrapper by rotating the arm unit about the shaft unit. The bale wrapping apparatus according to claim 12. The arm portion is formed in an overall U-shape, and the abutting arm portion abuts on a lower portion of the roll bale created in the roll baler, and holds the roll bale from below without rotating the roll bale. The bale wrapping apparatus according to claim 11, wherein the bale wrapping apparatus is configured to be transferred onto a lift arm.

Images