FI71212B - SLAOTTERHACK LAEMPAT FOER SNABBKOPPLING OCH DESS FAESTSTOMME - Google Patents

Description

1 71212

Quick-connect mower conditioner and its mounting frame

The invention relates to a quick-connect, self-supporting, rear-wheel-mounted n.i i ttosi 1 ppur i.

comprising, for quick coupling on the side of the attachment frame, a rear left-hand transmission shaft and controls for coupling points *, and in which the height of the stubble is adjusted by a tractor lifting device which raises / lowers the front end of the shredder to the desired stubble height; and wherein the transmission to the spindle shaft takes place by means of a grate mounted on a side of the shredder. The invention 15 also relates to a fastening frame which enables a quick connection.

The usual way to drive a mower-shredder is to attach the trailer to the full side of the tractor with the shredder, after which the tractor driver must leave the cab to inspire my shredder from the t3'srun. After the trailer load has been emptied, the fastening frame is driven laterally onto the shredder, whereby in some known shredders the drawbar of the fastening frame is locked in the shredder. However, the driver must again get out of the cab and land to engage at least the PTO shaft in the shredder. Generally, the cables and electrical wiring for the horn control must also be connected separately. During the working day, the tractor driver often has to repeat these same 30 routines dozens of times. This coupling operation takes time, firstly, and secondly, it has been found in practice to be associated with a particularly high risk of accidents at work.

No quick-connect solutions have previously been proposed for rear-wheel-drive mower-conditioners.

35 A major difficulty with the quick coupler1 is that the coupling must allow the shredder to swing laterally according to the terrain and maintain the current stubble height adjustment method.

2 71212 GB Patent No. 1309822 discloses a quick-connect grain or fodder hay machine in which the height of the stubble is adjusted by means of a tractor lifting device. The design of the first machine and the front wheel support allow the quick-coupling transmission to be firmly connected to other coupling members, and no movable connection of the transmission is required. The p.i kaky tken tä ra t ka i presented in this GB publication cannot be used with a rear wheel-supported mower. Namely, the structure shown requires that the axial line of the base wheels be close to the rotation axis 1 of the lifting devices.

The object of the present invention is to provide a simple and easy-to-use connection system for mower-conditioners. This is achieved by means of a mowing machine according to claim 1 and, for example, a fastening body according to claim 6. Naturally, the structures can be implemented as a mirror image according to the same inventive idea.

Claim 2 defines a principle solution for realizing the mobility of the transmission of the transmission receiving shaft so that it can be locked to the mounting frame. The drawbar is, of course, in addition to the shaft fastening, supported, for example, by a curved 1 ui st .ik i insertion into the shredder body. The axle attachment of the drawbar can be articulated, allowing the drawbar to rotate relative to the body of the shredder, allowing the drawbar to be fully locked to the drawbar.

According to the embodiment according to claim 3, the attachment of the drawbar to the body of the shredder can be realized by rotation only by said transverse shaft structure. The swinging of the shredder is here enabled so that the counterpart can rotate at the end of the drawbar, about a longitudinal axis. However, this presupposes that the front traction point also allows it to rotate, as in the case of known and commonly used catchers. The rotating axes 35 must be congruent.

The pin assembly according to claim 4 is a fairly simple alignment and readout, which is most preferably parallel to the receiving axis.

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The embodiment of the fastening frame according to claim 8 is very advantageous in practice, since only one hydraulic cylinder can be used to control the coupling itself and the lateral displacement of the towbar. The most preferred embodiment 5 requires that the transfer of the hook carriage be free after engagement, for example by means of a latch device which locks the engagement carriage in the engaging position. The lateral displacement of the towbar allows the trailer to be fully loaded. In practice, it has been found that with a lateral displacement of 40 cm, the loading capacity increases by several cubic meters. The lateral displacement makes the towbar visible during the coupling of the trailer, when normally driving to the engaged position must be done blindly.

In the following, the invention will be described with reference to the accompanying figures, which show an embodiment of the invention. Figure 1 shows a side view of the shredder and its quick coupler.

Figure 2 shows a rear view of the shredder of Figure 1.

Figure 3 shows a section 20 of the shredder according to Figure 1 at 3-3 ·

Figure 4 shows the connection of the shredder according to Figure 1 in a partial section of the device, partly in section and without a protective housing.

Figure 5 shows a rear view of the mounting frame without the protective housing 25.

Figure 6 shows a top view of the mounting frame according to Figure 5.

A beam 5 and a curved U-rail 6 are welded to the body 1 of the shredder. The drawbar 8 is attached to the beam 5 by means of a shaft 7 and to a U-rail 6 by a slider 13. A coupling counterpart 9 is attached to the rear end of the handle 8 so that it can rotate 10 around to allow the shredder to swing according to the terrain, pictures 1-3 ·

The telescopic PTO shaft 11 is connected between the transmission receiving shaft 15 in the mating part 9 of the coupling 35 and the drive pulley driving the belt transmission 4, Figures 3 and 4. The belt transmission 4 for the shaft is on the other side than in known shredders.

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Figure 4 shows the structure of the coupling part 9. The mating part 9 of the coupling is fixedly connected to the fastening body 24, whereby the rocking-allowing structure is implemented by means of a shaft 10. At the end of the drawbar 8 there is a sleeve 18, through which 5 the shaft 10 is mounted and the locking is effected by means of a locking piece 19 and a pipe pin 20. A bearing housing 16 and a sleeve 21 are welded to the plate 17 of the mating part 9. The transmission receiving shaft 15 and the sleeve 21 are both perpendicular to the plate 17.

10 The remote control of the blowpipe can be implemented electrically, hydraulically or pneumatically. For this purpose, the mating part 9 has corresponding connectors, for example an electrical connector 22, into which the plug is inserted during connection.

The drawbar 8 can rotate on the side of the shredder around the shaft 7. The slider 13 on the U-rail 6 reduces the bending load on the shaft 7.

The rotation of the drawbar 8 is limited by means of suitable members. The attachment of the drawbar 8 in itself resembles the structure of known shredders, but in known shredders the drawbar is always locked in a certain position during use and the adjustment only pre-adjusts the height of the stubble to the desired adjustment range.

The fastening frame 24, which enables quick coupling, is connected to the tractor's three-point linkage by means of 25 forks 38 welded to the beam 23. A beam 23 is attached to the beam 23 by a rail. By moving the hook carriage 26, it is also possible to move the coupling carriage 27 to the coupling-20 position, i.e. to the extreme right, when the counter plate 33 pushes the transfer bar 32, which is welded to the coupling carriage 27.

The first portion 39 of the transmission transmission shaft is connected to the output shaft of the bevel gear 25 and the second portion 29 is allowed to move within the first portion 39 to allow axial-25 displacement. The second part 29 is mounted on the coupling carriage 27 · The rails of the coupling carriage 27 are parallel to the transmitting shaft 29, 39, so that no joints are required.

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The coupling is started as in known shredders by attaching the fastening pin 35 of the drawbar 34 to the hole 12 of the drawbar 8 and driving slightly forward, whereby the alignment plates 36 and 17 face each other. Now by lifting the fastening-5 frame 24, the locking tab 37 meets the plate 17 of the coupling part 9 and binds laterally. The hook carriage 27, the tapered guide pin 30 and the transmission shaft 29 therein are moved by means of the hook carriage 26. The transmitting shaft 29 protrudes inside the receiving shaft and the transmission is transmitted by means of a keyway connection formed by the shafts.

The coupling carriage 27 is locked in the coupling position by means of a suitable locking device 15 (not shown), whereby the position of the towing hook 26 can be freely set by the hook carriage 26.

When the latch device is opened, the coupling carriage 27 is pulled back to the released position by the spring 31 and the shredder can be removed in the reverse order.

20 In practice, the quick-release system has been found to work reliably and save time compared to the use of conventional shredders.

Claims (9)

71212 6 1. A side-mounted, rear-wheel-mounted, quick-coupling side-mounted bracket for the quick-release coupling (24) connected to the tractor's lifting gear and transmission, with the transmission drive shaft (15) mounted on the left side when viewed from the rear for quick coupling. (17,21) for adjusting the coupling, and in which the height of the stubble is adjusted by means of a tractor lifting device which raises / lowers the front end of the shredder (1) to the desired stubble height by means of a fastening frame 10 (24). by means of a belt drive (4) or the like, characterized in that said belt drive (4) 15 is located on the right side of the shredder (1) when viewed from behind, and the PTO shaft (11) is connected to the drive receiving part (15) and said belt drive (4) between said pulley, and said guide members (21) and the transmission receiving shaft (15) bearing 20 (14, 16) are adapted to move with the shredder's fastening force transmitting structure (9, 17) so as to be coupled to the respective members (23,36) of the fastening body (24). ) the connection (10,8,7) of said structure (9,17) to the shredder body (1) allows changes in the position of the shredder (1) with respect to the mounting body 25 (24). Mowing machine according to Claim 1, characterized in that the transmission receiving shaft (15) is mounted on a coupling mating part (9) which is adapted to be locked to the fastening frame (24) and which is fastened to the rear end of the towing bracket (8). in turn, is rotatably attached to the shredder body (1) by means of a transverse shaft (7) at the front of the shredder (1). Mower conditioner according to Claim 2, characterized in that the coupling counter part (9) is rotatably attached to the drawbar part (8) by means of a shaft (10) substantially parallel to the drawbar eye. 7 71212 Mower conditioner according to claim 2 or 3, characterized in that said capability control means (17> 21) comprise at least one sleeve (21) attached to the coupling counterpart (9) and adapted to receive a guide pin (30) of the attachment body (24) for aligning the coupling. / to lock. Mowing shredder according to Claim 2, 3 or 4, characterized in that the coupling counter part (9) comprises an electrical, hydraulic or pneumatic connector 10 (22) adapted to connect the remote control of the shredder blower hose in connection with the transmission connection. A mounting frame 1 ^ (24) for quick coupling of a rear-wheel-mounted mower-conditioner, which is connected to the tractor's lifting gear and transmission and is laterally actuated, comprising control means (30,36) for coupling points, a transmission shaft (29,39), a drawbar (34), an angle (25) and coupling locking means (30, 37), characterized in that said transmission transmitting shaft (29, 39) is transverse and has a telescopic 20o structure comprising a first part (39) connected to a bevel gear (25) and a second part ( 29) adapted to move nested with the first part and mounted on a coupling carriage (27) adapted to move axially (39,29) by means of rails or similar members in the frame beam 25 (23), and said locking members (30,37 ) is adapted to lock the bearing (14,16) of the transmission receiving shaft (15) fixedly to the mounting frame (24) · Mounting body (24) according to claim 6, characterized in that the locking member (30, 37) comprises a guide pin (30) in the direction of the transmitting shaft (29) fixed to the coupling carriage (27) and extending along the transmitting shaft (29) and which is adapted by means of a guide sleeve (21) in the shredder to align / lock the transmission engagement (15,20). 8 71212 Mounting frame (24) according to Claim 6 or 7, characterized in that the coupling carriage (27) is moved by means of a second carriage (26) movably arranged on the beam (23), to which carriage (26) the towing hook 5 is attached and this hook carriage (26) is moved laterally to the frame beam (23) by means of a corresponding supported hydraulic or pneumatic actuator (28). „9 91212