DE1817061A1 - Flow coupling - Google Patents

Description

concerns «iae Strößiuingsfcuppliiing and fabricated .Oehaufeleinent one

Beööaders fabricated part l'eileji consisted of liiiigBbauarteii was already proposed "in those who use pumps with öCiiaufelii . semicircular * ia the bowl arranged, ücaaufeln. " which have tongues received in slots in the shell and contain a semi-tofoid-shaped inner part, which has slots for receiving tongues on the opposite side of the baffle, these components of the blade element being formed from sheet metal stiffeners »

üJiae of the bekaantea types includes an annular mounting plate. which is connected to the inner circumference of the shell, and. with dea in raciial seal inner jig of the shovels ia -öiagriff stands around the tongues ia the slits of the bowl to hold on. The usability of such an aging stick However, it is limited to such shovels that are sufficient are long. to entijpreciitinae raaially directed inner ends

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1117061

have., and there is also an additional manufacturing process necessary.

Another well-known design contains specially shaped stranded wires in the shell, which lie radially very far inward on it in order to accommodate the corresponding tongues of the blades ? I ^örmge: ßungs before transition is both IThe standardization of Chaufel and that of the slot erföMerli'Gh * to "Termeiiiung of Ohgehauigkeiten is in other lauarten l'eil after mounting a pressing or £» £ tan, before transition subjected to deform the material of the shell and the pliers '? the bucket because ana to fix "^ in such i RES ^ o ^r the Ut before transition is however complicated uM hard &' o drive ^{through": ä:} AESS uniform Fixing throw is achieved »

It is the task of the invention to make one from individually manufactured To specify fluid coupling manufactured by metal bleoh iata.nzteile, whose construction and assembly is simpler and which can be produced more economically than known constructions.

Another aim of the invention is to produce an improved flow coupling wheel on which the fastening elements or itioning elements -between the pots and the iichalen consist only of -tongues and tichll'Gz.en and the components of the Hades are fixed, όπάβ mechanical play can only be assembled after the blades have been attached to the shells and the inner part and the tongues have been bent "

Another goal of the "invention is to use the aforementioned Pum pen-Surbinenrad so ausaubilden that it without deformation of the Shovels can be assembled so that nothing after partial effect on the hydrodynamic characteristics of the Bimpen-iOurbinenrades remains.

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yet another objective of the finding is; it, at the aforementioned Pump turbine wheel has a minimal number of individual parts, simple construction, low weight and low manufacturing costs to reach.

For a more detailed description of a preferred Aasführungsform of the invention is referred to the drawing taken. Show in her *

Pig. 1 shows a longitudinal section of part of a hydraulic

Torque converter "according to the invention, ä

Pig. 2 shows a longitudinal section of a Pig impeller. 1,

Pig. 3 is a partial front view of the in Pig. 2 shown Impeller,

Pig. 4 is a section of the outer pump shell of the Pig. 3 The pump wheel shown along the line 4-4 in Pig. 5,

Pig. 5 is a partial front view of the outer pump shell Pig. 4 and

Pig. 6 shows an enlarged longitudinal section,

the line 6-6 in Pig. 2. "

In Pig. 1, a torque converter 1 is shown, which from a pump 2, a turbine 3 and a stationary stator 4 exists. However, the invention can be applied to any fluid coupling apply, the drawing shows only a preferred embodiment. The torque converter -1 is for the transmission and conversion of torques · through. Change. tion of the living power of the work equipment by means of .der Pump, 'the'! '' Turbine and the fixed stator used. - Of the '' The main part of the torque waM-le-rs- 1 is in a / vessel

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“AD ORIGINAL

closed, that of the outer shell 5 and a lid 6 is formed, on which a support pin 7 is seated, which is supported by a journal bearing 8. This is on the crankshaft 9 äes motor attached. The other end of the torque converter is provided with a hollow shaft 1ü, which is attached to the Pump outer shell 5 is attached and one on a housing 12 fixed bearing 11 is carried.

The pump 2 contains the pump outer shell 5> an inner part

13 and blades 14, the spaces between the pump outer shell 5 and the inner part 13, which in turn represent a rope of the working fluid circuit, the blades

14 are essentially inserted radially and limit this_ Spaces. The pump outer shell 5 »the inner part 13 and the Blades 14 are all made of suitable sheet metal and are made in a manner to be described in detail composed.

The! Turbine 3 is also composed of an outer shell 15 and an inner part 16 which forms the working fluid circuit form, and blades 17 are assembled, which are inserted essentially radially between the shell 15 and the inner part 16 are. The outer shell 15 is attached to the turbine hub 18 which in turn is splined with an output shaft 19 stands.

The stationary stator 4 comprises a ring 20 and a hub 21 which delimit a working medium path, and a plurality of radially arranged blades 22 which form a stator through which there is axially. The stationary stator 4 is via a brake 23 acting in one direction ύοώ. a stationary shaft 24 attached to the housing 12. The unidirectional brake 23 is disposed between an outer race 25 attached to the hub 21 and an inner race 26 splined with

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BATH ORIGINAL

of the shaft 24 and allows the stator 4 to rotate only in the direction of rotation of the motor »

A plurality of sockets 27 are attached to the outside of the cover 6, for example by welding. They take screws 28 for fastening a drive plate 29, which is fastened by screws 30 to the crankshaft 9 of the engine. The engine torque is transmitted through the crankshaft 9, the drive plate 29, the bushings 27 and the cover 6 to the pump outer shell 5. A 'cheap rate of the torque is transmitted through the hollow shaft 10 to an oil pump 31 g, to provide working fluid for the torque converter. The larger cable of the torque is transmitted to the output shaft 19 via the pump 2, the working fluid and aie! Turbine 3. The stator 4 absorbs the heating torque through the housing 12 and deflects the flow direction of the working fluid, the living force of which it increases in order to achieve a multiplication of the turbine torque standard.

The pump 2 is shown in detail in FIGS. 2 and 3. The pump outer shell 5 is made of sheet metal, the semi-toroidal recess and radially spaced apart Groups of slots spaced apart in the circumferential direction 32, 35 and 34, as from jPig. 4 and 5, provided | will. All blades 14 are also made of sheet metal and provided with a semicircular outer edge that fits into the semi-toroidal surface of the pump outer shell 5. Each blade 14 is provided with three tongues 35, 36 and 37, aie extending radially from the semicircular edge of the blade extend out and fit into the corresponding slots 32, 33 and 34. The alignment of the slots follows the line of contact between the pump outer shell 5 and the blade 14 so that no deformation of the latter is required when assembling it with egg shell. The inner edge part of the

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Blade 14 is semicircular for receiving the inner part 13 cut out and provided with two tongues 38 and 39.

The inner part 13 is also made of sheet metal, around its semi-toroidal outer surface for engagement with the Form inner edges of the blades 14, and provided with two rows of slots 40 and 41 which the tongues 38 and 39 The latter are inserted into the slots 40 and 41, bent over and flat on the inner, arched one Surface of the inner part 13 rolled down to connect the inner part 13 to the blades 14 and also to the entire pump 2 to be defined in a manner to be described in more detail

To assemble the pump wheel 2, the blades 14 with the pump outer shell 5 are successively inserted of the tongues 35, 36 into the slots 32, 33 and 34 from the radial outer slots 32 assembled from As previously described, the slots are aligned essentially according to the defining Idnie after assembly, so that the assembly easy to implement and no bending of the blades is required Q

The used ^ shovel 14 can by its rotation around the radial outer slot 32 can be easily removed, but when it is drawn parallel to the axis of the pump 2, by engagement of the edge surface 32a of the slot 32 held with the edge surface 35a of the tongue 35, since the edge surfaces 32a and 35a in the assembled - ^ age essentially perpendicular to the axis of rotation get lost. After all the blades 14 are attached to the pump outer shell 5, the inner part 13 is inserted by inserting the tongues 38 and 39 of the blade 14 are mounted in the slots. As a result of the bending or rolling of the tongues 38 and 39 The blades 14 can be placed on the surface of the inner part 13

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never rotate around slot 32 to assemble the Complete pump 2.

One of the most important features of the invention is that the blades are not connected to the pump outer shell without play v / earth and that, only when the blades are connected to the pump outer shell, the inner part is mounted and the Tongues are bent down, the components of the pump wheel are firmly connected to one another without play «.

To ensure a firm connection of the components of the pump, If the inner part and the pump outer shell are in a correspondingly assembled position, £ e-fc is the distance I according to the invention between the radially outer corner 32b of the slot 32 of the pump outer shell 5 and the radially inner corner 41b of the slot 41 of the inner part 13 is somewhat shorter than the corresponding distance of the blades, i.e. between the corner 35b of the tongue 35 and the radially inner corner 39b of the tongue 39 »As a result, as soon as the pump outer shell, the blades and the inner part are assembled, the latter and the blades are somewhat deformed, so that a firm connection is achieved by elastic engagement on the edge surfaces 32a and 41b. The deformation will mainly absorbed by the inner part 13, so that due to a lack of deformations of the working medium channels none hydrodynamic effect occurs.

It is noteworthy that the blade of the torque converter or the fluid coupling according to the invention from a minimum Number of stamped sheet metal parts can be produced and assembled by a simple method, as well as in comparison to known ones separately manufactured blade types has lower weight and greater economic efficiency. Furthermore, the composition

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construction easier to carry out, because a deformation of the Sohaufel is not required and the exact dimensions of the working medium ducts are maintained o

Claim »

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Claims (1)

1817081 Patent claim Schaufe! Element for a fluid coupling with a group consisting of sheet metal, a substantially semi-toroidal, concave surface having shell with at least three rows of slots at spaced circumferential locations on the inner surface of the shell, of which the first row of ä slots radially is arranged furthest outward and the slots of each row are circumferentially spaced around the axis of the shell, a concave semi-toroidal inner part made of sheet metal with at least two rows of slots arranged at circumferentially spaced apart locations which penetrate the inner part and a plurality of blades made of sheet metal with a curved outer edge and a curved inner edge, the shapes of which correspond to the toroidal JPo.rm of the inner surface of the shell and the outer surface of the inner part, respectively, and with tongues corresponding to the slots of the shell and the inner part can be seen, characterized in that "the slots (32, * 33, 34) of the pump outer shell (5) or the outer shell (15) of the turbine (3) corresponding to each blade (14, 17) are so arranged, that the longitudinal edges of the slots (32, 33, 34) are substantially aligned with predetermined flow lines formed by the built-in blade, so that the insertion of the tongues (35 »36, 37) of the blades (T4, 17) without bending the latter allow each radially outermost edge surface of each slot (32) of the first row is directed essentially perpendicular to the axis of rotation of the pump outer shell (5) or »the shell (15) and the edge with the - 10 - 9 098 31 surface of the slot (32) engaging edge surface of the tongue (35) also substantially perpendicular to the Shell axis of rotation, furthermore the distance 1 between the radially outermost corner (32b) of the first row of slots (32) of the pump outer shell (5) and the radially innermost corner (41b) of the radially innermost slots (41) of the inner part (13) is somewhat shorter than when the position is appropriately assembled the distance between the radially outermost corner (35b) of the radially outermost tongue which can be connected to the pump outer shell (35) and the radially innermost corner (39b) of the radially innermost tongue (39) which can be connected to the inner part (13) so that after the assembly of the shell, the blades and the inner part of the latter and the blades are somewhat elastically deformed, to cause clamping between the corners (32b, 41b) with the slots (32) and tabs (35) between the shell and the blades represent the clamping and positioning elements and the shell, the blades and the inner part only then mechanically be held together in clamping engagement when the Tongues are bent against the inner surface of the inner part » - 20,762 909831 -Μ- Blank page