DE1452752C

DE1452752C - Method for producing a housing part for a differential gear in a vehicle drive

Info

Publication number: DE1452752C
Authority: DE
Inventors: Ronald Basingstoke Hampshire Goodacre (Grossbritannien)
Original assignee: Lansing Bagnall Ltd
Current assignee: Linde Material Handling UK Ltd
Publication date: 1972-08-24

Description

3 43 4

Das Gehäuse wird (vgl. F i g. 1 und 3) aus einem Die beiden sich an den Längsschlitzen 15, 18The housing (cf. FIGS. 1 and 3) is made from one. The two are located at the longitudinal slots 15, 18

Rohr von quadratischem Querschnitt hergestellt. Die gegenüberliegenden Rohrteile haben somit einenTube made of square section. The opposite pipe parts thus have one

Rückseite des Rohres weist (Fig. 1) einen beispiels- U-förmigen Querschnitt, wobei die beiden SchenkelThe back of the tube has (Fig. 1) an example U-shaped cross-section, with the two legs

weise durch Ausschneiden hergestellten, symmetrisch jeweils in Abständen eingekerbt sind,wisely made by cutting, are notched symmetrically at intervals,

angeordneten Längsschlitz 15 auf, der sich in Axial- 5 Das in F i g. 1 und 3 gezeigte Rohr wird in einearranged longitudinal slot 15, which is located in the axial 5 The in F i g. 1 and 3 tube shown is in a

richtung über den Teil der Rohrlänge erstreckt, der Presse gelegt, deren Backen in F i g. 2 bei 22 an-Direction extends over the part of the pipe length, placed the press, the jaws of which in F i g. 2 at 22

zur Aufnahme des Differentialgetriebes verformt gedeutet sind. Auf jeder Seite des Rohres sind un-are interpreted deformed to accommodate the differential gear. On each side of the pipe are un-

werden soll. An jedem Ende des Schlitzes 15 sind verrückbare Formteile oder Anschläge 23 angeordnet,shall be. At each end of the slot 15 displaceable molded parts or stops 23 are arranged,

zwei Querschlitze 16 in die Rohrwand geschnitten, um die endgültige' Form des Rohres zu bestimmen,cut two transverse slots 16 in the pipe wall to determine the final 'shape of the pipe,

die sich einander entgegengesetzt in Richtung des io Das Rohr wird dann in der Presse in Axialrichtungwhich are opposite to each other in the direction of the io The tube is then in the press in the axial direction

Rohrumfanges erstrecken. Die Enden dieser Quer- zusammengedrückt und so lange verformt, bis es dieExtend pipe circumference. The ends of this transverse are compressed and deformed until it is the

schlitze liegen (wie dargestellt) im wesentlichen in in F i g. 2 und 4 gezeigte Form einnimmt. WährendSlots are (as shown) essentially in FIG. 2 and 4 assumes the shape shown. While

der Ebene der Innenwände der nicht mit Schlitzen der Verformung bewegen sich die beiden Backen 22the plane of the inner walls of the not with slots of deformation move the two jaws 22

versehenen Rohrseiten. Auf jeder Seite des Längs- um jeweils gleiche Strecken gegeneinander, so daß dieprovided pipe sides. On each side of the longitudinal by equal distances against each other, so that the

Schlitzes 15 sind zwischen den beiden Querschlitzen 15 Rohrmitte keine Verschiebung in Längsrichtng er-Slot 15 between the two transverse slots 15 in the middle of the pipe, there is no shift in the longitudinal direction

16 zwei V-förmige Einschnitte 17 in die Rohrwand fährt.16 two V-shaped incisions 17 drives into the pipe wall.

geschnitten, die in Richtung des Längsschlitzes sym- Wie ersichtlich, werden bei der Verformung diecut, which are sym- As can be seen, the deformation will take place in the direction of the longitudinal slot

metrisch angeordnet sind. Die Tiefe der Einschnitte Längsschlitze 15 und 18 ausgeweitet, die Querschlitzeare metrically arranged. The depth of the incisions longitudinal slots 15 and 18 expanded, the transverse slots

17 ist im wesentlichen die gleiche wie die der Quer- 16 und 20 öffnen sich und werden zu V-förmigen schlitze 16. 20 Einschnitten, die ursprünglich V-förmigen Ein-17 is essentially the same as that of the transverse 16 and 20 open and become V-shaped slots 16. 20 incisions that originally formed a V-shaped

Die in F i g. 3 gezeigte Vorderseite des Rohres schnitte werden zu engen Einschnitten. Die beiden weist einen daraus ausgeschnittenen, in Längsrichtung Kanten der nunmehr geschlossenen Einschnitte 17 verlaufenden Schlitz 18 auf, der von gleicher Länge und 21 werden dann zusammengeschweißt,
wie der Schlitz 15 und diesem gegenüber angeordnet Es können z. B. die Vorder- und die Rückseite ist. An seinen Enden 19 ist dieser Schlitz sehr eng. 25 des Rohres, anstatt sie wie beschrieben mit ver-An jedem Ende des Schlitzes 18 sind zwei Quer- schiedenen Schlitzen zu versehen, in gleicher Weise schlitze 20 ausgebildet, die entsprechend den Quer- ausgebildet werden. In diesem Fall werden vorteilschlitzen 16 und diesen gegenüber angeordnet sind. hafterweise beide Seiten entsprechend der Rückseite Auf jeder Seite des Schlitzes 18 schneiden zwei des beschriebenen Ausführungsbeispiels ausgebildet. V-förmige Einschnitte 21 ein, deren Spitzen im 30 Ferner können die Rohrseiten, die in dem bewesentlichen in der Ebene der Innenwände der bei- schriebenen Beispiel durch Zusammendrücken des den nicht mit Schlitzen versehenen Rohrseiten liegen. Rohres in axialer Richtung in einer Presse verformt Die Einschnitte 21 sind jeweils gegenüber von den werden, auch durch Auseinanderziehen der beiden vier Einschnitten 17 angeordnet. Rohrseiten nach außen verformt werden.The in F i g. The front of the pipe shown in Fig. 3 becomes narrow cuts. The two have a slot 18 cut out of them and running in the longitudinal direction of the now closed incisions 17, which are of the same length and 21 are then welded together,
as the slot 15 and arranged opposite it. B. is the front and the back. This slot is very narrow at its ends 19. 25 of the tube, instead of being provided with ver- At each end of the slot 18, two different transverse slots are to be provided, in the same way slots 20 are formed, which are formed in accordance with the transverse. In this case, advantageous slots 16 and are arranged opposite these. meticulously both sides corresponding to the rear side. On each side of the slot 18 cut two of the embodiment described. V-shaped incisions 21, the tips of which are at 30 mm. Furthermore, the tube sides, which in the essential part lie in the plane of the inner walls of the example cited, can be made by compressing the tube sides which are not provided with slits. The tube is deformed in the axial direction in a press. The incisions 21 are each arranged opposite the two, also by pulling the two four incisions 17 apart. Pipe sides are deformed outwards.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

ι 2 limited, on which the transverse slots or V-shaped patent claims: gene incisions are. No further shaping is necessary. This deformation process can

1. A method for producing a housing can only be brought about by the fact that the part for a differential gear in a 5 slotted, rectangular in cross-section tube a vehicle drive, is clamped on opposite and the two halves of the slotted sides of the jacket of a straight pipe section Section are pulled apart. A few running longitudinal slits and the stops are sufficient for the middle part of the length of the same tuning of the final shape. There is no risk that when parts of the halves of the slotted pipe jacket that are located on both sides of the longitudinal slots are driven together with deformation, parts of the cut-off pipe jacket will be moved beyond the flow limit ... of a pipe could occur. The deformation can, however, be done with a rectangular cross-section in its shell at the fold in that the slotted blank ends of the two longitudinal slots (15, 18) _{: is} compressed transversely to 15.

These running transverse slots (16, 20) and in It is known to have a non-slotted, rohrden Pages of the. Longitudinal slots (15, .. 18) between the shaped blank during the deformation of a Rohrden To compress transverse slots (16, 20) at least one section each, however, this has happened to the one the relevant longitudinal slot (15, 18) known method, which is also a spreading opener V-shaped incision (17, 21) made 20 die-operated, only the purpose stated below. forming forces occurring tendency to transverse

2. The method according to claim 1, characterized in counteracting a reduction in the incision (USA.-denotes, that the sides of the V-shaped one-patent specification 1 982 400).

cuts (17, 21) with each other during deformation It is one of the further advantages of the method

brought into contact and then with- 25 according to the invention that there is no further work

are welded to each other. aisle or no additional tools are required,

around the flanges on the deformed halves of the

slotted section to form, since these are known as the

Remnants of the flat, slotted boundary wall

The invention relates to a method for producing 30 sections of the rectangular tube. .

Manufacture of a housing part for a differential In order to achieve the desired deformation as much as possible

Gearboxes in a vehicle drive, where there is little resistance to oppose, should use the

overlapping sides, the jacket of a straight pipe cross-slots and the V-shaped incisions in the

Piece over a "middle part of the length of the sides of the longitudinal slots to the inner wall of the un-

the same extending longitudinal slots cut and the 35 injured cross-sectional sides of the rectangular tube

on both sides of the longitudinal slits> parts of the rich.

Pipe jacket moved apart with deformation. Advantageously, the housing construction can be. An increased rigidity can be imparted by the _{! f} Such a method has been known for six decades in the Verification of V-shaped incisions (German Patent 177 016). In this 40 formation brought into contact with one another and and other known methods are then welded together by one. The tubular profile with a round cross-section started out and the flanges formed can be used to fasten the layer, the halves of the slotted tubular section, the drive for the differential gear or, using expansion dies or expansion caps, serve. - '■ matrices * pulled apart or apart- 45 In the drawing is - to explain the drive (German patent 556 877). By driving according to the invention, a requirement frequently made according to this requirement that the differential gear housing made to move apart with driven halves of the slotted pipe section is shown, for example.

be provided with inwardly turned flanges Fig. 1 shows the back of a for the Versollen, the expansion dies or matrices are still 50 forming the prepared pipe on which the essential more complicated, and as a blank can not be formed speaking slots and incisions are more of a tubular profile with the same throughout;

Diameter can be used - (German patent- Fig. 2 shows the same side of the pipe after the _;

scripture 414 592). .,. Deformation;

The invention is based on the object that 55 Figs. 3 and 4 show the front of the tube

To improve the method mentioned at the outset in accordance with FIGS. 1 and 2.

that on expansion matrices or _; ~ dies completely A common power transmission to the drive

can be drawn. ,, '■ the wheels of a vehicle include a differential

This is achieved according to the invention in that gear and two shafts, usually 'half-shafts

that using a tube of right-called 60, which passes through the two sun gears of the

angular cross-section in the jacket at the ends of the differential gear are driven. A business

the two longitudinal slots running transversely to this house for such a differential gear and the

Cross slots and in the sides of the longitudinal slots ■ two half-waves is shown in FIG. 2 and 4 shown. It

between the transverse slots at least one against each comprises two pipe ends 10, 11 of square

V-shaped cross-section, open towards the longitudinal slot in question, through which the two halves

Incision can be made. waves can extend, and one with a

This method has the following advantages: The center piece 12, which is provided with a border, has a molding of the pipe profile is widened to those points 13 to accommodate the differential gear.