JP3213682U - Grass collecting and packing machine - Google Patents

Abstract

In a grass collecting / packing machine that performs packing with a roll baler immediately after collecting with a grass collecting device, the grass can be well collected in the center when the tractor turns. The grass collecting device 2 is connected to the rear of the tractor T, the roll baler 3 is coupled to the grass collecting device 2, and the grass is collected by the grass collecting device 2 and packed immediately by the roll baler 3. In the machine 1, the grass collecting device 2 includes a traction frame 11 coupled to the rear of the tractor T, and a pair of pickup grass collection mechanisms 12 connected to the left and right sides of the traction frame 11 in a substantially C shape in plan view. And an angle adjusting mechanism 15 that adjusts the extension angle of the pickup grass collecting mechanism 12 in a plan view, and operates the angle adjusting mechanism 15 according to the turning of the tractor T, and is opposite to the turning direction of the tractor T. The extension angle of the pickup grass collecting mechanism 12 is adjusted along the turning direction of the tractor T. [Selection] Figure 2

Description

  The present invention relates to a working machine in which a roll baler is coupled to the rear of a grass collecting device and the grass scattered in a field scene is packed while collecting.

  The work of collecting and packing the grass in the field is generally performed in separate processes. In the grass collection work, a grass collection device (rotor relay or the like) pulled or directly mounted on the tractor is used, and a grass collection line is formed on the field scene. In the packing work performed thereafter, the roll baler pulled by the tractor along the grass collection line is run to pack the grass taken into the roll baler in a roll shape and discharged onto the field.

  As a device that performs such grass collecting work and packing work continuously in one step, a roll baler is connected immediately after collecting the grass with the grass collector by connecting the grass collector behind the tractor and arranging a roll baler behind the tractor. There is known a working machine that performs packing by using (see Patent Document 1 below). In such a grass collecting / packing work machine, in order to improve workability while turning, it is considered to shorten the distance between the tractor and the roll baler, and the grass collecting apparatus disposed between the tractor and the roll baler. The one having a small arrangement space along the traveling direction is adopted.

  In the prior art described in Patent Document 1 below, when a grass collector and a roll baler are connected in a vertical line in this order behind the tractor, and the grass is packed by the roll baler immediately after the grass is collected by the grass collector, the grass collector is used. Is equipped with a pickup grass collecting mechanism configured to pick up the grass that has been cut and scattered in the field by the rotation of the tine, and a pair of grass collecting mechanisms on both the left and right sides of the traction rod connected to the rear part of the tractor for towing the roll baler Are arranged in a substantially C shape in plan view.

JP 2006-50929 A

  According to the above-described conventional technology, a pair of pickup grass collecting mechanisms are arranged in a substantially C shape in plan view on the left and right sides of the traction rod connected to the rear portion of the tractor to pull the roll baler so that the tractor travels in the traveling direction. On the other hand, by extending the pickup grass collecting mechanism diagonally, the grass scattered in the field is collected at the center in front of the roll baler. However, when the tractor turns, the pickup grass collecting mechanism that extends to the opposite side of the tractor's turning direction (for example, the left side in the case of right turning) has an inclination angle close to a right angle. There is a problem that the action of moving the center to the center is weakened. For this reason, when turning the tractor, there was a problem that the grass could not be collected well in the center.

  An object of the present invention is to deal with such a problem. That is, for the purpose of the present invention, in a grass collecting / packing work machine that packs with a roll baler immediately after collecting with a grass collecting device, the grass can be well collected in the center when the tractor turns. is there.

In order to achieve such an object, a grass collecting and packing machine according to the present invention has the following configuration.
In the grass collecting / packing work machine, a grass collecting device is connected to the rear of the tractor, a roll baler is coupled to the rear of the grass collecting device, and packing is performed by the roll baler immediately after collecting by the grass collecting device. The grass device includes a traction frame coupled to the rear of the tractor, a pair of pickup grass collecting mechanisms connected to the left and right sides of the traction frame in a substantially C shape in plan view, and a plan view of the pickup grass collection mechanism. An angle adjusting mechanism for adjusting the extending angle of the tractor, and operating the angle adjusting mechanism in accordance with the turning of the tractor, thereby setting the extending angle of the pickup grass collecting mechanism on the opposite side to the turning direction of the tractor, A grass collecting / packaging machine characterized by adjusting the angle along the turning direction of the tractor.

  According to the grass collecting / packing machine of the present invention, the angle adjustment mechanism is operated according to the turning of the tractor, so that the extending angle of the pickup grass collecting mechanism opposite to the turning direction of the tractor can be adjusted. Adjust the angle along the direction. As a result, even when the tractor is turning, the pickup grass collecting mechanism extending to the opposite side of the tractor's turning direction ensures a proper inclination angle with respect to the traveling direction of the tractor, and can collect the grass well in the center. it can.

It is explanatory drawing (side view) which shows the grass collecting / packing work machine which concerns on embodiment of this invention. It is explanatory drawing (plan view) which shows the grass collection and packing work machine which concerns on embodiment of this invention. It is explanatory drawing which showed the pick-up grass collection mechanism in the grass collection / packing work machine which concerns on embodiment of this invention. It is explanatory drawing which showed the hitch angle detection part in the grass collection and packing work machine which concerns on embodiment of this invention ((a) is a top view, (b) is a side view). It is explanatory drawing which showed the sensor part of the angle adjustment mechanism in the grass collection and packing work machine which concerns on embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In the description of each drawing, the same parts are denoted by the same reference numerals, and repeated description is omitted as appropriate.

  As shown in FIGS. 1 and 2, the grass collecting / packing work machine 1 has a grass collecting device 2 coupled to the rear of the tractor T and a roll baler 3 coupled to the rear of the grass collecting device 2. It is a working machine which packs up with the roll baler 3 immediately after collecting grass.

  The grass collecting device 2 includes a traction frame 11 that is connected to a connecting portion T1 provided behind the tractor T by providing a hitch angle detecting unit 10. The traction frame 11 extends along the traveling direction of the tractor T, the front end side is connected to the connecting portion T1, and the roll baler 3 is integrally coupled to the rear end side.

  In addition, the grass collecting device 2 includes a pair of pickup grass collecting mechanisms 12 connected to the left and right sides of the tow frame 11 in a substantially C shape in plan view. The pickup grass collecting mechanism 12 is supported by a pair of extending frames 13 having one end connected to the pulling frame 11 so that the angle can be changed and the other end extending left and right. A grounding wheel 14 is attached to the extended frame 13, and the body of the grass collecting device 2 is grounded by the grounding wheel 14 so as to be movable along the progress of the tractor T.

  Further, the grass collecting device 2 includes an angle adjustment mechanism 15. The angle adjusting mechanism 15 adjusts the extension angle θ1 in plan view of the pickup grass collecting mechanism 12 with respect to the traction frame 11. The angle adjusting mechanism 15 includes an extendable cylinder 15A having one end connected to the traction frame 11 and the other end connected to an extended frame 13 on which the pickup grass collecting mechanism 12 is supported. The extension cylinder 15A is, for example, a hydraulic cylinder (or an electric cylinder). By extending the extension cylinder 15A, the extension angle θ1 in plan view of the pickup grass collecting mechanism 12 is increased, and the extension cylinder 15A is reduced to reduce the pickup. The extending angle θ1 in plan view of the grass collecting mechanism 12 is reduced.

  In the illustrated example, the telescopic cylinder 15 of the angle adjustment mechanism 15 has one end connected to the traction frame 11 and the other end connected to the extension frame 13, but on the proximal end side of the pickup grass collecting mechanism 12. The extending angle θ1 in plan view of the pickup grass collecting mechanism 12 may be adjusted by providing a refracting portion and providing the telescopic cylinder 15A across the refracting portion.

  FIG. 3 shows a configuration example of the pickup grass collecting mechanism 12. The illustrated pickup grass collecting mechanism 12 includes a plurality of horizontal bars 12B with a plurality of tines 12A mounted downward, and includes a mechanism for moving both ends of each horizontal bar 12B along a circular orbit.

  Specifically, one end side of the plurality of horizontal bars 12B in the pickup grass collecting mechanism 12 is pivotally supported by the first disc body 12C, and the other end side thereof is pivotally supported by the second disc body 12D. The first disk body 12C and the second disk body 12D are rotatably supported by the frame 12E. The first disk body 12C serves as a driving rotating body, and the second disk body 12D serves as a driven rotating body. The rotation of the first disc body 12C is driven by an external hydraulic mechanism (not shown) from the tractor T.

  A grass removal member 12 </ b> F is attached to the frame 12 </ b> E of the pickup grass collecting mechanism 12. The grass removal member 21F has a function of scraping grass adhering to the tine 12A of the horizontal bar 12B that moves up and down.

  The pickup grass collecting mechanism 12 rotates the first disc body 12C so that the tine 12A attached to the horizontal bar 12B moves toward the center of the grass collecting device 2 when moving to the vicinity of the ground GL. To do. By the movement of the tine 12 </ b> A, the grass on the farm scene within the planar development range of the pickup grass collecting mechanism 12 is scraped toward the center of the grass collecting device 2. Then, the extension angle θ1 in plan view of the pickup grass collecting mechanism 12 is held at an acute angle with respect to the forward direction of the tractor T, so that the pickup collectors disposed obliquely with respect to the forward direction of the grass collector 2 are arranged. The grass mechanism 12 efficiently scrapes the grass toward the center of the grass collecting device 2.

  When such a grass collecting / packaging work machine 1 is operated in a state where the extension angle θ1 in plan view of the pickup grass collecting mechanism 12 is fixed, when the tractor T turns, the side opposite to the turning direction of the tractor T Since the pickup grass collecting mechanism 12 extending in the direction of the tractor T has an inclination angle close to a right angle with respect to the traveling direction of the tractor T, the action of bringing the grass to the center becomes weak. On the other hand, the grass collecting / packing work machine 1 according to the present invention operates the angle adjusting mechanism 15 according to the output of the hitch angle detection unit 10, so that the pickup grass collecting mechanism on the side opposite to the turning direction of the tractor T is provided. The extending angle θ1 of 12 is adjusted along the turning direction of the tractor T. As a result, even when the tractor T is turning, the inclination angle θ1 with respect to the traveling direction of the tractor T is appropriately secured, and the grass can be well collected in the center.

  FIG. 4 shows a specific configuration example of the hitch angle detection unit 10. The illustrated hitch angle detection unit 10 includes a sensor support 16 that supports a sensor 16A on the traction frame 11 side in a traction frame 11 that is rotatably supported around a vertical axis T2 with respect to a connection portion T1 of the tractor T. The to-be-detected body 17 is attached to the attachment and connection part T1 side. The sensor support 16 has a long hole 16B, and the sensor 16A can be fixed at an arbitrary position of the long hole 16B so that the fixing position of the sensor 16A can be adjusted, thereby adjusting the hitch angle to be detected. It is free.

  When the tractor T turns, the hitch angle detection unit 10 detects that the planar view angle (hitch angle) of the traction frame 11 with respect to the body direction of the tractor T becomes the set angle θ2, and the angle adjustment mechanism 15 is Output a signal to operate. In the illustrated example, when the hitch angle reaches the set angle θ2, a detection signal is output when the detected portion of the detected body 17 approaches the sensor 16A. By changing the fixed position of the sensor 16A, the set angle θ2 can be appropriately adjusted. Various types of position detection sensors such as a contact type and a non-contact type can be used as the sensor 16A. In the illustrated example, the sensor 16A is a non-contact type magnetic sensor, and the detected body 17 is a metal body.

  FIG. 5 shows the sensor unit of the angle adjustment mechanism 15. In the extended frame 13 that is pivotally supported with respect to the traction frame 11, the sensor unit is provided with a sensor support 18 that supports the sensors 18 A 1 and 18 A 2 on the traction frame 11 side, and a detected object 19 on the extension frame 13 side. Is attached. Also in this sensor unit, the sensor support 18 is provided with a long hole 18B, and by fixing the sensors 18A1 and 18A2 at arbitrary positions of the long hole 18B, the fixing positions of the sensors 18A1 and 18A2 can be adjusted. Yes. As the sensors 18A1 and 18A2, various types of position detection sensors such as contact type and non-contact type can be used in the same manner as the sensor 16A described above.

  The operation of the angle adjustment mechanism 15 based on the output of the hitch angle detection unit 10 will be described. When the tractor T turns in one direction and the hitch angle reaches the set angle θ2, the hitch angle detection unit 10 outputs a detection signal, The telescopic cylinder 15A on the side opposite to the turning direction of the tractor T is contracted. When the change in the planar view angle of the extending frame 13 due to the contraction of the extension cylinder 15A becomes the set angle θ3, the sensor 18A1 detects this and stops the extension cylinder 15A. When the detected object 17 moves away from the sensor 16A of the hitch angle detection unit 10 when the tractor T starts to advance straight, the expansion / contraction cylinder 15A is extended and the expansion / contraction cylinder 15A is stopped when the detection object 19 comes close to the sensor 18A2. Let Thereby, the extended frame 13 is returned to its original position.

  By adjusting the set angle θ2, the operation timing of the angle adjusting mechanism 15 when the tractor T is turning is adjusted. When the set angle θ2 is set small, the angle adjusting mechanism 15 starts to operate at an early stage with respect to the turning of the tractor T, and when the set angle θ2 is set large, the angle adjusting mechanism 15 is set with respect to the turning of the tractor T. The start of operation can be delayed.

  The set angle θ3 is appropriately adjusted according to the amount of grass scattered in the field and the size of the distance between the left and right rear wheels of the tractor T. The magnitude of the angle change of the pickup grass collecting mechanism 12 (extended frame 13) is set according to the magnitude of the setting angle θ3. When the distance between the rear wheels of the tractor T is large, the angle change is set small so that the pickup grass collecting mechanism 12 does not come into contact with the wheels during turning. When the amount of grass scattered in the field is large, it is necessary to incline the pickup grass collecting mechanism 12 at an acute angle with respect to the traveling direction of the tractor T, so that the angle change is set to be large.

  As described above, the grass collecting / packing machine 1 of the present invention operates the angle adjusting mechanism 15 by the output of the hitch angle detection unit 10 when the tractor T is turning, so that the opposite side of the turning direction of the tractor T is achieved. The extending angle of the pickup grass collecting mechanism 12 is adjusted along the turning direction of the tractor T. Accordingly, even when the tractor T is turning, the pickup grass collecting mechanism 12 extending to the opposite side of the turning direction of the tractor T has an appropriate inclination angle with respect to the traveling direction of the tractor T, and the grass is well centered. Can be collected.

  In the example shown in the figure, the hitch angle detection unit 10 detects the turning of the tractor. Instead, the turning of the tractor is detected by detecting the front wheel steering angle of the tractor and the rotation of the steering wheel. The angle adjusting mechanism 15 may be operated by a signal.

1: Grass collecting / packing machine, 2: Grass collecting device, 3: Roll baler,
10: Hitch angle detector, 11: Traction frame,
12: pickup grass collecting mechanism, 12A: tine, 12B: horizontal bar,
12C: 1st disk body, 12D: 2nd disk body,
12E: Frame, 12F: Grass removal member,
13: Extension frame, 14: Ground ring,
15: Angle adjustment mechanism, 15A: Telescopic cylinder,
16, 18: sensor support, 16A, 18A1, 18A2: sensor,
16B, 18B: Long hole, 17, 19: Object to be detected
T: Tractor, T1: Connection part, T2: Vertical axis

Claims (6)

In a grass collecting / packing machine for connecting a grass collecting device to the rear of the tractor, coupling a roll baler to the rear of the grass collecting device, and packing with the roll baler immediately after collecting with the grass collecting device,
The grass collector is
A tow frame coupled to the rear of the tractor;
A pair of pickup grass collecting mechanisms connected to the left and right sides of the tow frame in a substantially C shape in plan view;
An angle adjustment mechanism for adjusting the extension angle of the pickup grass collecting mechanism in plan view,
The angle adjusting mechanism is operated according to the turning of the tractor, and the extending angle of the pickup grass collecting mechanism opposite to the turning direction of the tractor is adjusted along the turning direction of the tractor. Collecting and packing machine.   2. The grass collecting apparatus according to claim 1, wherein the angle adjusting mechanism includes a telescopic cylinder having one end connected to the traction frame and the other end connected to an extended frame on which the pickup grass collecting mechanism is mounted.・ Packing machine.   The grass collecting / packing work machine according to claim 1, wherein the angle adjusting mechanism is provided with a refracting portion on a base end side of the pickup grass collecting mechanism, and an extension cylinder is provided across the refracting portion.   The hitch angle detection part is provided between the connecting part of the tractor and the traction frame, and the angle adjusting mechanism is operated by the output of the hitch angle detection part when the tractor turns. The grass collecting and packing work machine according to any one of 3 above.   5. The grass collecting / packing machine according to claim 4, wherein the hitch angle detection unit is capable of adjusting a hitch angle to be detected.   6. The pickup grass collecting mechanism includes a plurality of horizontal bars with a plurality of tines attached downward, and includes a mechanism for moving both end portions of each horizontal bar along a circular orbit. The grass collecting / packing machine according to claim 1.

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