DE1235057B - Haymaking machine with rotors arranged side by side in pairs across the direction of travel - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .: AOId Jf / ΊO

German class: 45 c -

Number: 1 235 057

File number: D 37559 HI / 45 c

Filing date: November 29, 1961

Opened on: February 23, 1967

The invention relates to a haymaking machine with pairs transverse to the direction of travel arranged side by side, from the PTO shaft of the tractor in opposite directions about an approximately vertical axis circumferential and positively driven gyroscopes fitted with tines that are attached to a basic device and pivotable with this through universal joints both in the vertical and in the horizontal plane connected frame parts are arranged.

The task to be solved with the subject matter of the invention is seen in taking precautions, in order to achieve a favorable transport position with the same working width, as well as a machine changeover the machine from the working to the transport position and vice versa.

In a known haymaking machine of this type, the hinge points of the individual frame parts are arranged laterally outside the gears of the gyroscope. That has the disadvantage that the machine even in the transport position is still relatively wide, which makes it maneuverable on narrow dirt roads and impaired in narrow gate entrances. In addition, the well-known haymaking machine, if it is carried out in its largest working width, in the transport position to four Running wheels rolls, while two more running wheels are placed transversely to the direction of travel. These two Running wheels are a hindrance when driving over uneven floors. It is also in a constructive sense the arrangement of the hinge points for the frame parts laterally outside the gyroscope is disadvantageous, because the construction cost is correspondingly large, so that more wearing parts are available that the Make maintenance of the machine more difficult.

Another known haymaking machine of this type has the same disadvantages, in which An attachment device for the transport position is articulated on both sides of the basic device can be folded up and locked in this position. This well-known haymaking machine runs in the Transport position on four wheels.

The object set is essentially achieved according to the invention in that at least one drive axle of the gyroscope simultaneously forms a hinge axle for frame parts carrying a gyro. This design is structurally simpler and cheaper than that of the known arrangements in which the hinge axes for connecting the frame parts carrying the gyroscope are arranged outside the drive axes of the gyroscopes. Furthermore, by relocating the hinge axes of the frame parts in the drive of the gyroscope with the same working width of the haymaking machine in pairs across to
Direction of travel arranged side by side

Gyroscopes

Applicant:

JOHN DEERE-LANZ Aktiengesellschaft,

Mannheim

Named as inventor:

Dipl.-Ing. Gerhard Römer, Einöd;

Bernhard Pröbsting,

Winfried Stachnik, Zweibrücken

Machine has a smaller transport width, which improves the maneuverability of the haymaking machine.

According to the invention, one of the hinge axes for the frame parts carrying a top can be used forming drive axes of the gyroscope in or approximately in the direction of travel of the haymaking machine, the other drive axis run vertically or approximately vertically. This is beneficial as the horizontal Drive and articulated axis an adjustment of the rotors while working on the unevenness of the meadow, the vertical or approximately vertical drive and articulation axis adjusting the haymaking machine in the transport position.

The drive axles can be connected to the tractor PTO from one provided on the basic machine a drive shaft connectable transfer case can be driven, with the horizontal or in Drive axles running in the direction of travel from the vertical drive axles of the neighboring gyroscope are driven, each having a horizontal drive axle running in the direction of travel, from which get their drive from the outermost tops. This allows the hinged to the inner gyroscope Swivel frame parts in two planes, around the upright drive and Joint axis to the rear and around the horizontal axis also to the top. This results in also seen in the direction of travel of the machine, a relatively short compressed transport position the haymaking machine. In addition, it can be avoided that running wheels of the haymaking

709 510/154

3 4

machine stand transversely in the transport position and can optionally be arranged so that it can be carried around

are a hindrance. at its end that can be connected to the frame parts

The power transmission from the transfer case can be equipped with a tension spring.

on the individual gyroscope is according to the invention In the following description are three

likewise not to a specific embodiment

bound. Advantageously, the inner gyroscopes drive over explained, which are shown in the drawing. It

one on the horizontal or one on the vertical display

drive element arranged on the drive axis, which is shown in FIG.

adjacent rotors, from which the outermost proper haymaking machine in working position,

Gyroscopes are drivable, with one each the inner io and that in a view looking towards one

Gyroscopes of neighboring gyroscopes and an outermost one, not shown, connected to the implement

Rotary arranged on the common frame part NEN tractor from behind,

are. This arrangement is structurally particularly simple FIG. 2 shows the top view of FIG. 1 with partially

and clear. hired tractor,

According to the invention, the transfer case can be shown in FIG. 3 is a side view of the machine, the

be for example a chain transmission, that the dash-dotted lines indicate the transport position.

interpret a horizontal running in the direction of travel,

and a vertical drive axle equipped F i g. 4 drives the drive of the inner gyroscope in size-bevel gears of the inner gyroscope and rem scale as in F i g. 1 and 2,
that of these bevel gears each have a 20 F i g. 5 shows the second embodiment, with the continuous shaft and, for the sake of simplicity, only half of the haymaking gears, the rotary machine adjacent to the inner gyro, being shown via further bevel gears,
furthermore the outermost gyroscopes are driven. Fi g. 6 shows the top view of FIG. 5,

The transfer case can also be used as a reversing F i g. 7, a third exemplary embodiment can be designed in a similar transmission. As a result, one can see representation as in FIG. 5,
achieve two things. Once the direction of rotation can be F i g. 8 shows the top view of FIG. 7th
direction of the gyroscope so that the pairwise In the embodiment according to Fig. 1 to 4 of the cooperation of the gyroscope around a gyro according to the drawing is shifted with 1 with a three-point device outside. In this case, the clutch and control hydraulics of equipped tractors can either work outward or designate 30, on the upper handlebars 2 and lower ones are put out of operation. The formation of the handlebar 3 via a bow-shaped frame 4 of the transfer case as a reversing gear also has the haymaking machine, for example, a gyro advantage that the conversion of the haymaking machine is connected to tedders. This consists of the working position to the transport position or, for example, of three pairs of rotors, each with two circular turns, if necessary by machine, i.e. for example A and B, C and D, E and F, which are The framework described in more detail below can be carried out. For this purpose, according to the invention, it is hingedly connected to one another. Each gyro A advantageous, a gyro of one or both of the outer to F, can for example consist of four cross-shaped pairs of gyroscopes that can be braked in its rotation or arranged arms 5 to be arranged lockable at their free ends. 40 spring tines 6 are attached for machine conversion. Every Kreider haymaking machine from the working to the A to F is stored in a housing 7, in which there is a transport position, the output direction of the bevel gear is located, which is reversed via shafts 8 and dividing gear. By engaging the chain 9 with a PTO drive between the gyroscopes C and D, the frame parts pivot around the transfer case 10 that is connected, the upright drive and articulation axes of 45

inner gyro inevitably to the rear and the frame parts carrying the outer gyroscopes around theirs i i h ih

, arranged in the direction of travel curved wheel holder 16, an impeller 17 is mounted at its lower end

horizontal drive and joint axes also list. The aforementioned transfer case 10 is suspended

up. For the mechanical changeover of the hay - a housing 11 and three cone bearings stored in it

advertising machine from the transport to the work wheels 12 together, one of which has a

The position is the output direction of the distributor cardan shaft 13 with the PTO shaft 14 of the tractor 1

gear back in its original direction of rotation, while the other two

to reverse. The when changing the haymaking bevel gears with the bevel gears of the inner

machine from the working to the transport position gyroscopes C and D via a shaft 15 non-positively

55 are connected to pivot backwards about the vertical drive axle.

Able frame parts can by means of inclined support As in particular from F i g. 4 of the drawing, during its pivoting movement, the gear housing 11 forms the housing 7 of the bevel gear axle with two horizontal drive pipe sections 18 extending in the direction of travel. This facilitates the mechanical transmission of the inner rotors C and D and their relocation of the haymaking machine. The 60 impellers 17 form a closed unit, on which inclined support surfaces can be provided, for example, on the remaining rotor pairs A and B as well as E and F bearing housings of the inner rotor. are attached. The two bevel gears according to another inventive front inner gyroscope C and D are each located in a cross lay, the frame joint which can be swiveled backwards and which has a vertical swivel axis 33 and a horizontal swivel axis 32 via tension members 65 in a manner known per se , around which the hitch rail of the tractor is articulated and the drive wheels of the gyro drives rotate, be releasably connected. The tension members are advantageous. The intermediate arms 19 can be pivoted backwards by 90 ° around the axis 33 on the fastening elements provided on the frame parts; also let

the latter pivot about the axis 32 upwards to the vertical position, while they can only be pivoted down to an angle of 15 ° below the horizontal through inclined support surfaces 20 so that the rotor arms 5 do not collide with the intermediate arms 19. The shafts 8 connecting the gyroscopes A and B or E and F are surrounded by protective tubes 21 and can only be pivoted vertically 165 ° upwards and 15 ° downwards. The position of the rotor pairs A and B or E and F is determined by adjustable tie rods 22, which are hung in the frame 4 at one end and in the protective tubes 21 at the other end, giving the rotary tedder the rigidity it needs to work.

As already mentioned, the individual rotors A to F are driven by the power take-off shaft 14 of the tractor 1, the rotational movement of which is transmitted to the transfer case 10 via the articulated shaft 13. From there, the rotary movement is transmitted via shafts 15 to the bevel gears of the inner gyroscopes C and D. A sprocket 23 assigned to this latter gear drives the chains 9 connected to the gyroscopes B and E and thus also these gyroscopes. Finally, the outermost gyroscopes A and F are driven by shafts 8 which are connected at one end to the bevel gears of gyroscopes B and E and to those of gyroscopes A and F at the other end. The power transmission to the outermost gyroscopes A and F can also be done with chains. The pairs of gyroscopes A and B and E and F are removable, so that you can work with the inner pair of gyroscopes C and D alone, which z. B. for small meadows or those with trees is advantageous.

The gyroscopes rotate in opposite directions and are designed so that in certain positions the arms 5 or the spring prongs 6 interlock without touching one another. The running wheels 17 are located within the circles described by the rotating gyroscopes A to F, so that the running wheels 17 never come into contact with the spring prongs 6 during work. The height adjustment of the spring tines 6 is achieved by tilting the rotors A to F in the direction of travel with the aid of the upper link 2 of the tractor 1. As a result, the spring tines 6 located in front of the running wheels 17 always grasp the crop when working, so that the running wheels never roll over a mown crop and compress it. As a result of these gyroscopic movements and the working position of the rotors and running wheels, the crop is scattered backwards, both upwards and apart, and turned at the same time. You can turn, turn and swath with the rotary tedder.

The rotary tedder can be brought into the transport position by unhooking the tie rods 22 from the protective tubes 21. The arms 19 and 21 are then pivoted backwards through 90 °. During this process, the intermediate arms 19 are automatically raised by 15 ° by the inclined support surface 20 at the bearing points of the inner gyroscopes C and D (shown in FIG. 3, lower dash-dotted illustration). The outer arms 21 are then folded upwards by 180 ° and held in place by the tie rods 22 now suspended in the wheel holders 16 of the gyroscopes A and F (FIG. 3, upper dot-dash position). In this state, the rotary tedder only stands on the running wheels 17 of the inner rotors C and D. The running wheels 17 do not need to be arranged so that they can be pivoted or folded back. Therefore cheap sheet metal wheels or grinding skids can be used. The final position of the rotary tedder during transport is reached when it is lifted by the tractor hydraulics.

The rotary tedder is switched from the working to the transport position and vice versa using the power take-off drive. For this purpose, a reversing gear is necessary, which is expediently built into the gear 10 of the rotary tedder. The two tie rods 22 on the outer arms 21 are released and the gyroscopes A and F are braked. Braking is done manually by a braking device attached to gyroscopes A and F , which can be actuated directly or indirectly via linkage, Bowden cable, hydraulics or the like from the tractor seat. Then the reversing gear is switched on, so that the middle pair of gyros C and D rotates in the opposite direction to the working direction. The arms 19 and 21 on both sides now pivot backwards as with the hand lifting, and then the outer arms 21 tilt upwards. The lifting or swiveling back of the rotors A and B or E and F can be done by built-in hydraulic pulling or pushing devices that can be connected to the hydraulic system of the tractor 1. The time within which the frames are pivoted backwards can be influenced by braking at different strengths. The brakes can also be operated individually on the right and left side of the device, so that each frame part can be lifted out individually. The mechanical changeover can also be activated by a slip clutch that also serves as an overload clutch during work, whereby the outermost pairs of gyroscopes A and B or E and F must be blocked beforehand.

To switch the rotary tedder to the working position, the reversing gear is returned to the normal position switched. The arms 19 and 21 pivot automatically due to the power take-off drive back to the working position.

The rotary tedder is not tied to tractors that are equipped with a three-point linkage. If the drawbar is replaced, one-point attachment is also possible. Here, the running wheels 17 of the two gyroscopes C and D have to be exchanged for rubber-tyred wheels that can be folded back. In order to prevent the device from wobbling while working, the tie rods 22 are hooked into the hitch rail of the tractor 1 and onto the device. The tilting of the gyroscopes A to F into the working position is carried out by a spindle which lies between the pipe section 18 and the drawbar. In the transport position, the rotary tedder with one-point suspension is carried by the two middle wheels. Otherwise the conversion takes place as with the three-point hitch. Now the two middle wheel holders 16 are folded back before the conversion. After the conversion, the above-mentioned spindle on the drawbar of the device, and thus also the gyroscopes A to F, are placed horizontally so that more ground clearance is obtained.

If the rotary tedder is to be parked by itself, a

Support folded down, which means that the device remains upright.

A second embodiment of the rotary tedder is shown in FIGS. 5 and 6. In contrast to the above-described embodiment according to FIGS. 1 to 4, the intermediate arms 19 and the protective tubes 21, which are hereinafter referred to as outer arms 21, consist of one piece. The pivot points for the two outer pairs of gyroscopes A and B and E and F are now at the bevel gears of gyroscopes C and D. If the device with three-point connection is to be brought into the transport position, the tie rods 22 on the outer arms 21 from the attachment point 24 in a connection 25 is repositioned and the outer arms are pivoted to the rear about the axis 33, whereby they are automatically raised about the axis 32. Then the two gyroscopes A and F are connected by a detachable element, for example a chain. In the case of devices with one-point attachment, the pull rods 22 are also repositioned during the conversion into the transport position, after which the outer arms 21 are pivoted backwards and connected. The rotary tedder is then raised by a lifting device (not shown). For this purpose, the wheel holders 16 of the gyroscopes A, C, D and F are extended in such a way that their shafts protrude considerably beyond the outer arms 21. The machine can be moved up and down on the extended wheel holders 16 or their shafts in the vertical direction. The wheel holders also each have a rotatable roller at their free ends, which is connected to the lifting device by means of traction means. The traction mechanism is connected at one end to a lever that is easily accessible from the tractor seat and at the other end via the rollers to the outer arms. So if the machine is to be lifted, the tractor driver operates the lever, the traction device is tightened and pulls the rotary tedder yoke on the wheel holders 16 of the rotors A, C, D and F. During this process, the wheel holders 16 of gyroscopes A and F or C and D are automatically released from their track lock and are thereby pivotable so that the running wheels 17 act as trailing wheels.

In this exemplary embodiment, the running wheels 17 of gyroscopes B and D can advantageously be saved as a result of the frame construction. The rotors A to F are in turn driven by the tractor 1 via the power take-off shaft 14, the articulated shaft 13 and the transmission 10, from where the rotary motion is transmitted to the bevel gears of the rotors C and D. These two, as well as the bevel gears of the remaining gyros, B, E and F each have a sprocket 26. The power transmission to the gyroscopes A and B takes place from the gyro C via a chain 27 to the sprockets 26; the same thing happens with the gyroscopes E and F through the gyroscope D.

In the embodiment according to FIG. 7 and 8, the power is transmitted from the tractor 1 to the transmission 10, which is connected to the bevel gears of the rotors C and D via chains 28. These in turn are connected by shafts 29 to the bevel gears of gyroscopes and B or E and F and drive them. The frame consists of a stationary part 30 with the inner gyroscopes C and D. Here, the gyroscope pairs A to F are not articulated with one another. For this purpose, the side arms 31 with the gyroscopes Λ, B and C or D, E and F located between the gyroscopes are articulated on the stationary part 30. The arms 31 can be folded back in the bevel gears of Kreisei C and D and are therefore in the transport position. If the machine is attached at one point, the transport position is also reached by pivoting the outer arms 29! Then the outer wheels 17

ίο! with the wheels of rotors A and F acting as trailing wheels. Here, too, the running wheels 17 of the gyroscopes B and E can be omitted. The design of the rotary tedder is not tied to the above examples. It is possible, for example, to equip the machine with only two running wheels 17 that are assigned to gyroscopes B and E. As in the examples mentioned, the inner gyroscopes C and D are connected to the three-point device coupling of the tractor 1 by the frame 4 and are at the same time designed as hinge points for one arm each, which can be pivoted backwards about the vertical axis of the inner gyroscope C and D. . The gyroscopes A and B as well as E and F are attached to these arms, which are rigid and can be set in rotation via the drive elements described earlier.

Claims (12)

Patent claims: 1. Haymaking machine with arranged in pairs side by side transversely to the direction of travel, rotating in opposite directions from the PTO shaft of the tractor around an approximately vertical axis and positively driven rotors with tines, which are attached to a basic device and connected to it by universal joints in both the vertical and horizontal planes pivotably connected frame parts are arranged, characterized in that at least one drive axle (32, 33) of the gyroscopes (A to F) simultaneously forms a hinge axle for frame parts (19, 21) carrying a gyro. 2. Haymaking machine according to claim 1, characterized in that one (32) of the hinge axes for the frame parts (19, 21) supporting a gyro (A, B or E, F ) forming drive axles (32, 33) of the gyroscope or approximately in the direction of travel of the haymaking machine, the other drive axis (33) runs vertically or approximately vertically. 3. Haymaking machine according to claim 1 and 2, characterized in that the drive axles (32, 33) provided on the base unit (18 or 30) and connectable to the tractor PTO shaft (14) via a cardan shaft (13) transfer case (10) can be driven, the vertical drive axles (33) of the adjacent gyroscopes (B and E) being driven by the horizontal drive axles (32) or those running in the direction of travel, each of which has a horizontal drive axle (32) running in the direction of travel, from which the outermost tops (A and F) get their drive. 4. Haymaking machine according to one or more of the preceding claims, characterized in that the inner gyroscopes (C and D) each have one on the horizontal or the vertical A drive element arranged on the cal drive axis (32 or 33) drive the adjacent gyroscopes (B and E) , from which the outermost gyroscopes (A and F) can be driven, with one gyro (B or D) adjacent to each of the inner gyroscopes (C and D). E) and an outermost gyro (A or F) are arranged on the common frame part (21). 5. Haymaking machine according to one or more of the preceding claims, characterized in that the transfer case (10) is a chain transmission, which is equipped with a horizontal drive axis and a vertical drive axis (32 and 33) each of the inner rotors (C and D) ) drives, and that the gyroscopes (D and E) adjacent to the inner gyroscope and the outermost gyroscopes (A and F) are driven by these bevel gears each via a continuous shaft (29) and via further bevel gears. 6. Haymaking machine according to one or more of the preceding claims, characterized characterized in that the transfer case (10) is designed as a reversing gear. 7. Haymaking machine according to one or more of the preceding claims, characterized in that a gyro of one or both outer pairs of gyros (A and B and E and F) is arranged so as to be braked or lockable in its rotation. 8. Haymaking machine according to one or more of the preceding claims, characterized characterized in that the frame parts pivotable to the rear about the vertical drive axis (33) (19, 21) by means of inclined support surfaces (20) during their pivoting movement around the horizontal drive axle (32) running in the direction of travel can be raised. 9. Haymaking machine according to claim 8, characterized in that the inclined support surfaces (20) are provided on the bearing housing (7) of the inner gyroscope (C and D). 10. Haymaking machine according to one or more of the preceding claims, characterized characterized in that the rearwardly pivotable frame parts (19, 20) are known per se Way via tension members (22) with the trailer rail (34) of the tractor (1) articulated and detachable are connected. 11. Haymaking machine according to claim 10, characterized in that the tension members (22) can optionally be hung around at fastening points (24, 25) provided on the frame parts (19, 21) are. 12. Haymaking machine according to claim 10 and 11, characterized in that the tension members (22) equipped with a tension spring at its end that can be connected to the frame parts (19, 21) are. Considered publications:
German utility model No. 1 840 671;
Brochure from Maschinenfabrik Fahr AG., Gottmadingen, relating to the "KH 2 / KH 6 rotary tedder", imprint 3798/613. 1 sheet of drawings 709 510/154 2.67 ® Bundesdruckerei Berlin