JP2010195096A - Transmission device for ride-on management machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein a conventional ride-on management machine causes a PTO shaft to perform transmission with continuous operation of a working machine even during a halt of a vehicle, unless an independent clutch is disconnected during engine drive, causing a pest control machine or the like to perform undesired continuous spraying in excess of medicine and a problem wherein an operator has increased load with a need to perform switching operation of a switch of a pest control pump for each halt of the vehicle. <P>SOLUTION: A transmission device for the ride-on management machine includes a traveling transmission device in which a rotating force, output from an engine, is transmitted from a front mission device to a traveling clutch device and further to a subsequent running transmission path. The running transmission path, connected to the traveling clutch device, is provided with the transmission device to transmit the rotating force to the PTO shaft in bifurcation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a transmission device for a passenger management machine. In particular, the present invention relates to a transmission device configured to branch traveling power via a traveling clutch and transmit it to a PTO shaft.

  Conventionally, the PTO shaft provided in a passenger management machine such as a tractor has a configuration in which the rotational power is branched and extracted immediately after being output from the engine, and a separate transmission path that is not synchronized with the traveling power is provided. A clutch that was transmitted via and independent of the traveling system was provided.

For example, as shown in the drawings and specification in Japanese Patent Laid-Open No. 2005-67602 (see Patent Document 1),
“The engine 13 is placed in front of a pair of left and right frames 12 a and 12 b fixed to the gear case 17, and a continuously variable transmission 20 for traveling is provided behind the engine 13. The transmitted rotational power is transmitted to the front and rear wheels, a PTO system power transmission unit is provided beside the continuously variable transmission 20, and an independent clutch device 21 for turning on and off the power is provided in the power transmission unit. "
The technology is disclosed, and the power of the PTO system can be arbitrarily turned on and off by an independent clutch.

JP 2005-67602 A

  A conventional transmission device for extracting power to a PTO shaft in a management work machine such as a tractor has shown an example in the above-mentioned patent document 1, but a generally well-known configuration is a diagram attached to the present application. The transmission structure shown in 2 (conventional configuration) is well known.

  That is, as shown in FIG. 2, the conventional transmission configuration includes a PTO shaft A, a PTO shaft B, and a traveling mission device M, each of which is transmitted from the front mission device F arranged immediately on the lower transmission side of the engine E to the work implement C. The power was branched and extracted. Further, the traveling mission apparatus M is provided with a PTO shaft G that can be shifted. Therefore, the PTO shaft A and the PTO shaft B are configured to be transmitted regardless of the intermittent operation of the traveling power via the traveling clutch device K.

  Therefore, the PTO shaft A and the PTO shaft B of the conventional passenger management machine are always rotated while the engine E is driven, as shown in the conventional configuration of FIG. As long as the independent clutch was not disengaged, work machine C continued to operate.

  Therefore, for example, in the case of a control machine etc., there is a problem that the spraying operation of the medicine is continued even when the vehicle is stopped, resulting in a state of excessive spraying medicine. Therefore, it is necessary for the passenger management machine to switch off the control pump every time the vehicle stops There were many problems, such as overloading the operator and causing the trouble of forgetting to cut.

  In order to solve the above-mentioned problems, the invention according to claim 1 is directed to the traveling mission device (1) in which the rotational power output from the engine (2) is traveled from the front mission device (3). It is configured to be transmitted via the clutch device (4) and further via the subsequent travel transmission path (5), and the travel transmission path (5) connected to the travel clutch device (4) The transmission device of the riding management machine is characterized in that a transmission device (8) for branching and transmitting the rotational power to the shaft (7) is provided.

  The PTO shaft (7) receives the rotational power branched from the travel transmission path (5) via the travel clutch device (4). Therefore, for example, when the control work machine (11) is connected to the PTO shaft (7) and the control work is continued, when the travel clutch (4) of the riding management machine is disengaged and stopped, the PTO shaft (7 ) Transmission was also interrupted and the control pump stopped, and spraying of the chemical solution was interrupted to prevent adverse effects such as excessive spraying. With this configuration, the burden on the operator can be greatly reduced.

  Next, in the invention described in claim 2, the transmission device (8) includes a belt transmission device (10) equipped with a tension clutch device (9), and is transmitted by the belt transmission device (10). The transmission device of the riding management machine according to claim 1, wherein a control work machine (11) is connected to the PTO shaft (7) so as to be capable of transmission.

  For example, when using a medium tillage cultivating machine, the rear PTO shaft (38) that can be changed at low speed is often used. In this case, the tension clutch device (9) is used to mount the PTO shaft (7). You can stop and work, and prevent unnecessary output.

  First, the invention described in claim 1 has a configuration in which the rotational power is branched from the traveling transmission path (5) via the traveling clutch device (4) to the PTO shaft (7) and transmitted by the transmission device (8). I took it. Therefore, for example, when the control work is being performed while the control pump is being driven, if the travel clutch device (4) of the riding management machine is turned off and the travel is interrupted, the transmission to the PTO shaft (7) is also interrupted. As a result, the control pump stops and spraying of chemicals can be interrupted.

  Therefore, as in the conventional case, there is no adverse effect that the spraying operation of the medicine is continued even when the riding management machine is stopped and the state where the spraying medicine is excessive, and it is necessary to switch off the control pump every time the riding management machine stops. There is also a feature that the operator's burden is greatly reduced and accurate control work can be performed.

  In addition to the effect of the first aspect, the invention described in the second aspect includes, for example, a case where a plow shaft culturing operation requiring a shift is connected to a rear PTO shaft (38) to be described later and the operation is started. 7) It is characterized by being able to work while stopping transmission and eliminating waste of output.

Power transmission mechanism diagram which is a main part of the present invention and shown in a diagram Transmission mechanism diagram of a conventional passenger management machine Side view of a passenger management machine equipped with a control machine Top view of the control panel Example of transmission mechanism Example of transmission mechanism Plan view during work with a control machine Side view of a passenger management machine showing another embodiment Side view of the operation of the passenger management machine showing another embodiment

Hereinafter, an example is described concretely based on a drawing.
First, as shown in FIG. 3, the passenger management machine 15 has an engine room in which a pair of left and right rear wheels 17 and 17 and front wheels 18 and 18 are pivotally mounted on the lower part of a body frame 16 and covered with a hood 19 at the front. The engine 2 is mounted on the vehicle 20, and the driver's seat 22 is arranged at a rear position at a position slightly behind the steering handle 21. The riding management machine 15 shown in FIG. 3 shows an embodiment equipped with the control work machine 11.

Next, the transmission mechanism of the riding management machine 15 will be specifically described with reference to FIG.
The engine 2 mounted in the engine room 20 is configured to output a driving rotational force by providing an output transmission device 25 between the engine 2 and the front mission device 3 disposed immediately behind. The front transmission device 3 is connected to the PTO shaft 6 via the large gear 27 from the drive gear 26 and is transmitted to the PTO shaft 6, and the transmission on the traveling side is transmitted from the drive gear 26 via the two intermediate gears 28 and 29. It is configured to branch to a path for transmission to the gear 30 and output to both.

  In the case of the embodiment shown in the drawings, the PTO shaft 6 is driven at all times to extract rotational power, and transmits the hydraulic pump 31 that is preferably driven while the engine 2 is driven. Yes.

  Next, as shown in the drawing, the traveling clutch device 4 includes an output shaft in which a driving side and a driven side are constituted by a multi-plate clutch panel, and the transmission gear 30 in the front mission device 3 is axially attached. Rotational power is input by 32 to transmit the drive side clutch disc.

  As shown in the drawing, the traveling mission device 1 is connected to the transmission shaft 33 that constitutes the traveling transmission path 5 connected to the traveling clutch device 4 so as to be able to be transmitted, and the traveling power is input. The traveling mission apparatus 1 includes a main transmission 35, an auxiliary transmission 36, and the like as a main mission mechanism of the riding management machine 15, and is configured to output to the traveling output shaft 37 and the rear PTO shaft 38. . In this case, since the rear PTO shaft 38 is configured to output from the lower transmission side of the main transmission 35 and the sub-transmission 36, the output can be changed and work requiring a shifting operation during work is required. In many cases, the work is performed by connecting a rotary tiller, a medium tillage culturing machine, or the like.

  A vehicle speed sensor 40 has a function of measuring the rotational speed output to the travel output shaft 37. The forward / reverse detection by the vehicle speed sensor 40 and the control action based on the measurement value will be described later.

  Next, as will be understood from the drawings, the travel output shaft 37 extends to both the front side and the rear side of the riding management machine 15 via several joints, and the differential mechanism 41 of the front wheels 18 and 18 The rear wheel 17 and the differential mechanism 42 of the rear wheels 17 are connected so as to be capable of transmission, and the riding management machine 15 is configured as a four-wheel drive type.

Next, the transmission device 8 to the PTO shaft 7 will be described.
First, as shown in FIG. 1, the transmission 8 has a pulley 45 attached to the transmission shaft 33 constituting the traveling transmission path 5 and a pulley 46 attached to the PTO shaft 7 on the driven side. A belt 47 is wound around the pulleys 45 and 46 so that the rotational power is branched from the traveling transmission path 5 and transmitted. The tension clutch device 9 is configured such that a tension pulley 48 is tensioned on the belt 47 so that the transmission clutch can be operated by operating the clutch lever 50.

  In the case of the embodiment, as shown in FIG. 4, the clutch lever 50 is arranged in the control panel 51, and together with the other switches and levers, the operator can get on the driver's seat 22 and perform the concentrated operation. Is possible. In general, the PTO shaft 7 is operated by operating the clutch lever 50 to stop the PTO shaft 7 when the middle tillage work or the like is performed while using the rear PTO shaft 38. Can be simplified and waste of output can be eliminated.

  Then, in the embodiment, in order to detect whether the PTO shaft 7 is being driven or stopped, as shown in FIG. If there is, the recognition lamp 53 provided on the control panel 51 (see FIG. 4) on the driver's seat 22 side is turned on. Therefore, the embodiment has an advantage that the operator hardly keeps working without entering the clutch lever 50 and does not create a non-spraying area in the case of control work.

  Next, in the case of the embodiment shown in FIG. 5, the PTO shaft 7 is connected to a control pump 55 at an intermediate portion so that it can be transmitted by a belt transmission device 57 having a tension clutch device 56, and at the rear end portion. Is configured such that the granular spreader 58 is connected so as to be capable of transmission, and an electromagnetic clutch 59 is provided on the upper side of the transmission so that the switching operation for intermittently rotating power can be performed.

  As shown in FIG. 5, the electromagnetic clutch 59 is connected to a controller (not shown) so as to be controlled based on the detection information of the vehicle speed sensor 40 described above. When the backward traveling is detected and the information is input, the transmission is controlled to be cut off, and the PTO shaft 7 is stopped and the driving of the control pump 55 and the granular spreader 58 is stopped.

  In this way, the control pump 55 and the granular spreader 58 transmitted by the PTO shaft 7 of the embodiment eliminates wasteful spray during stopping or reverse travel, and only when the riding management machine 15 travels forward. It has the feature that it can effectively control work. In the case of the embodiment shown in FIG. 6, the vehicle speed sensor 40 is an example of a sensor having a two-phase rotational direction detection function, detects the traveling direction of the airframe (passenger management machine), and detects the vehicle speed. Since detection is possible, a plurality of detections are possible with one sensor.

  In this case, as described above, the electromagnetic clutch 59 is in a transmission cut-off state when the riding management machine 15 is switched to the reverse travel, but when it is switched to the forward drive thereafter, the electromagnetic clutch 59 is turned on based on the control signal of the controller. The state is switched and the rotational power is transmitted to the PTO shaft 7. In this way, the control pump 55 has a feature that the control work can be resumed as the transmission returns and the traveling management machine 15 moves forward.

  Here, the control work machine 11 will be described briefly. As shown in FIGS. 6 and 7, the control work machine 11 includes left and right booms 61, 61 and a central boom 62 in which a plurality of nozzles 60, 60, 60 are arranged. Hose 63, 63, 63 is connected by piping, and spray cocks 64, 64, 64 are provided at the base. As shown in the drawing, the pressure feed hose 65 is configured to pipe the chemical solution from the control pump 55 to the spray cocks 64, 64, 64 and pump the chemical solution.

  As shown in FIG. 4, the spray cocks 64, 64, and 64 are configured such that operation levers 64 a, 64 b, and 64 c are arranged on the control panel 51 and can be opened and closed by this.

  Next, as shown in FIG. 5, the control pump 55 employs a configuration in which the power is transmitted from the PTO shaft 7 by the belt transmission device 57 equipped with the belt tension clutch device 56, so that the transmission can be cut off independently. There is also an effect that the control pump 55 is stopped and only the granular spreader 58 connected to the end portion of the PTO shaft 7 so as to be able to transmit power is transmitted, and the individual work can be performed.

  In the conventional control work machine 11 of this type, a configuration in which the control pump 55 and the granular spreader 58 are individually equipped with electromagnetic clutches individually and are turned on and off independently has been widely spread.

  On the other hand, the embodiment described with reference to FIGS. 5 and 6 employs a configuration in which one electromagnetic clutch 59 is provided on the upper transmission portion of the PTO shaft 7 and is used in common, thereby reducing the manufacturing cost. Of course, each product is light even in the assembly process (the electromagnetic clutch is heavy), and it is easy to handle, and there is also an effect that work such as transportation and assembly can be facilitated.

Next, an embodiment in which the control pump 55 is configured to be relatively easy to maintain will be described.
First, when the control machine 15 is equipped with the control machine 11, the passenger management machine 15 places the control pump 55 in the lower space 70 of the driver's seat 22 in order to mount each device in a limited narrow space. It is installed. Therefore, if the control pump 55 is left as it is, there is a problem that maintenance cannot be performed because the upper sheet 22a and the surrounding support frame 22b are in the way.

  Therefore, in the embodiment, as shown in FIG. 8, a pair of left and right rails 65, 65 are laid on the lower side of the support frame 22 b of the seat 22 a constituting the driver's seat 22, and the rail 65, 65 is attached to the control pump 55. The worn rolling wheels 66, 66 are mounted so as to be rotatable and are configured to be freely drawn out. In this case, an opening wide enough to allow the control pump 55 to pass through is formed on the rear side of the support frame 22b.

  Next, as shown in FIG. 9, in the embodiment, a rotation fulcrum P is provided at the rear of the support frame 22 b that supports the driver's seat 22. The control pump 55 can be opened by rotating to the side.

Note that the control pump 55 may be fixed to the support frame 22b so as to be integrated into the rear side when rotating.
As described above, each embodiment has a configuration in which the control pump 55 is mounted using the lower space portion 70 of the driver's seat 22, and when the control pump 55 is maintained, in the embodiment shown in FIG. Then, it is possible to perform the maintenance work such as adjustment and replacement of parts by pulling back on the installed rail 65 to the position of the virtual line.

  In the embodiment shown in FIG. 9, when the support frame 22 b is reversed to the rear side with the fulcrum P as the rotation fulcrum and the control pump 55 is opened, maintenance can be performed freely.

DESCRIPTION OF SYMBOLS 1 Traveling mission apparatus 2 Engine 3 Front mission apparatus 4 Traveling clutch apparatus 5 Traveling transmission path 7 PTO shaft 8 Transmission apparatus 9 Tension clutch apparatus 10 Belt transmission apparatus 11 Control work machine.

Claims (2)

  In the traveling mission device (1), the rotational power output from the engine (2) passes from the front mission device (3) through the traveling clutch device (4) and further through the following traveling transmission path (5). The travel transmission path (5) connected to the travel clutch device (4) is provided with a transmission device (8) for branching and transmitting the rotational power to the PTO shaft (7). A transmission device for a passenger management machine.   The transmission device (8) comprises a belt transmission device (10) equipped with a tension clutch device (9), and the PTO shaft (7) transmitted by the belt transmission device (10) has a control work machine. The transmission device for a riding management machine according to claim 1, wherein (11) is connected so as to be capable of transmission.

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