DE1913187U - PTO SHAFT FOR TRACTOR OD. DGL. - Google Patents

Description

Λ. RAJ25 470 * 1/16/65

X. FENDI & CO.

MACHINERY AND SCHUPPERFABR I K

89S2 marktoberdorf / ällgäu on January 13, 1955

WEITFELDSTRASSE 31

US. Ref. 149

PTO shaft for tractors or the like

The innovation "relates to a power take-off shaft for tractors or the like., consisting of one arranged essentially in the gear housing Wellenstumniel, which is operated by a hand Switching device can be switched in two speed levels, and the respective speed levels, which can be attached to the shaft stub PTO profile pieces.

There are already stiff, switchable PTO shafts in two speeds with exchangeable PTO profile pieces - known, The connection of the respective PTO profile piece with The shaft stub is done by screws that reduce the torque and the often very large transverse forces when cornering record and transmit. For this reason, a number of screws must be provided, which must be tightened very carefully Need to become. Closing and opening these screws therefore results in a not to be underestimated Workload that can only be done with a specific tool is executable.

The task of the furnace is therefore to simplify the mounting and dismounting of the PTO profile pieces on the stub shaft and especially to design without tools.

The innovation solves this problem in that the shaft

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RA.G25W0 * 16.1J5

MACHINE AND SHINGER FACTORY

8952 marktoberdorf / allgäu on January 13, 1965

WEITFELDSTRASSE 31

■ us »Ref. 149

stub formed as a hollow shaft provided with an axial inner profile is, into which the usual PTO profile piece equipped with a corresponding outer profile piece can be inserted and can be secured against axial displacement by a quick-release fastener.

According to a further feature of the innovation, the hollow shaft is sealed from the inside by a closure piece.

The innovation ensures that the torque to be transmitted and the transverse forces that occur through the stub shaft forwarded or included. The necessary connection between the shaft stub and the PTO profile piece is achieved by simply sliding these parts into one another and thus over a large area. TJm a solving in To avoid the axial direction, a relatively weak fuse, which is designed as a quick-release fastener, is now sufficient and can therefore be operated without tools. The hollow shaft is also sealed by the closure piece, so that no dirt or moisture can penetrate inside ν-',

'. In the drawing is an embodiment of the innovation shown.

In the rear wall of the gear housing 1 of a tractor or the like. there is a bearing 3 in a screwed-on ring 2 provided in which a stub shaft 4 is rotatably mounted. The other end of the stub shaft 4 is supported by a further bearing 5. In a certain area the exterior

—Yes '"' i

A. 025 ^ 70 * 1/16/65

MACHINE AND TRACTOR FACTORY

8952 MARKTOBERDORF / ÄLLGÄU on January 13, 1965

WEITFELDSTRASSE 31

US. Ref. 149 - • 3 w

circumference of the stub shaft 4 a spline 6, in which a gear block 7 is rotatably, but axially displaceable, so that either the gear 7 'with a Drive gear 8 'or the gear 7 "with another drive gear 8 "can be brought into engagement. The stub shaft 4 can thus be driven in two speed stages Moving the gear block 7 is done by a shift lever 9, which the Jahrer both from the seat and from the side standing next to the tractor.

The shaft stub 4 is essentially designed as a rearwardly open hollow shaft 4 ', which has an axial inner profile 4 ". Approximately at the inner end of this inner profile 4", a closure piece 10 closes the hollow shaft 4 ^! tight inwards. Either a PTO profile piece for the low speed or a PTO profile piece 12 for the high speed, each having an associated PTO profile 11 'and 12', can be inserted into the inner profile 4 ″, for which purpose they are fitted with outer profile pieces 11 ″ and 12 ″, preferably with a large profile To secure in the pushed-in position, a quick-release fastener is provided at the outer end of the shaft stump 4, which can consist, for example, of a spring-loaded bolt that can snap into an annular groove 14, while in the pressed position this is released so that the respective PTO profile piece 11 or 12. Other designs of this quick release 13, which can preferably be released completely without tools or with simple, always available tools, are also conceivable.

It can be seen that the PTO shaft pieces 11 and 12 as desired can be installed and removed, with only

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ΐυζ5 Wü * i6.1.b5 /

MACHINE AND S C H LE P P E R FA B R! K

8952 MARKTOBERDORF / ÄLLGÄU on January 13, 1964

^{WE1TFElDSTRASSE31} us. Ref. 149

the Sch.nellversch.luJ3 13 is to be activated. Through, the gear lever 9, the number block 7 can be moved to the left or right shifted and thereby the desired speed level selected «In the left switch position is over the gearwheels 7 'and 8' the low speed level is set, while by moving the gear block 7 to the right, the gears 7 ″ and 8 ″ come into engagement for High speed transmission. More than two speed levels are also conceivable for the shaft stub 4? those then further PTO profile pieces can be assigned »

Claims (1)

_ 5 _
Protection claims 1 «PTO shaft for tractors or the like., Consists of a shaft stub arranged essentially in the transmission housing, which can be switched to two speed levels by a manually operated switching device, and the respective speed levels assigned to the stub shaft, characterized in that the Shaft stub (4) is designed as a hollow shaft (4 ¹ ) provided with an axial inner profile (4 "), into which the respective PTO profile piece (11 or 12) equipped with a corresponding outer profile piece (11" or 12 ") can be inserted and by means of a quick-release fastener (13) can be secured against axial displacement. 2, PTO according to claim 1, characterized in that the Hollow shaft (4 ') is sealed to the inside by a closure piece (10). 3. PTO shaft according to claim 1 and 2, characterized in that more than two three-number stages are provided.