DE112016006348T5 - A wheel spoke with surrounding thickening of the cooling hole and its processing device - Google Patents

Abstract

A wheel spoke for vehicle that is lightweight, by the surrounding thickening of the vent hole (21) on the inner wall of the wheel spoke, the stiffness is increased by the vent hole, the life of the wheel spoke is also extended. Due to the thinning of the material between the vent holes (namely, where there is no vent hole on the conical body (20)) a unique concave and convex structure is formed on the inner wall or outer wall of the conical body of the wheel spoke, in addition, the carrying capacity of the wheel through Ensures the entire wheel spoke, increases the overall stiffness of the wheel spoke, and the materials for making the spoke can be used reasonably and effectively, the weight of the wheel spoke can be reduced, thereby reducing the weight of the entire vehicle and the fuel consumption is also reduced. As well as a processing device for Radspeiche with surrounding thickening of the vent hole

Description

Technical area

The present invention relates to a wheel spoke for the vehicle and its processing apparatus, in particular to a wheel spoke with surrounding thickening of the cooling hole and its processing device.

State of the art

Wheels are the supporting parts that transmit the forces between the vehicle and the road while driving, they are the feet of the vehicle and generally consist of hubs and spokes. The hubs and spokes are welded together, a wheel is mounted outside the hub, mounting holes are arranged on the spoke for connection to the axle. The spokes are the main component that take over the forces and ensure that the wheel carries the support load and transmits the torque. Especially large vehicles such as trucks and buses have higher demands on the carrying capacity and safety of wheel spokes.

Due to the requirement of heat dissipation in use, cooling holes (also referred to as air holes) must indeed be placed on the cone of the spokes, therefore, rigidity must be degraded, cracks often occur in use. This will shorten the life of the wheel.

Content of the invention

With regard to the existing technical problems of the prior art, the present invention provides a wheel spoke with reinforced surrounding thickening of the cooling hole, which has a lightweight, and their processing equipment.

The technical solution of the present invention is as follows:

A wheel spoke with surrounding thickening of the cooling hole, comprises a mounting surface, conical body; The cooling holes are attached to the conical body, wherein the thickness of the spoke at the edge of the cooling hole is greater than the thickness of the spoke between the cooling holes, the conical body around the cooling hole extending around a bearing cam of a certain thickness in the thickness direction.

Preferably, the support cam is arranged on the inner wall of the conical body. Preferably, the support cam extends from the mounting surface to the opening of the conical body and closes the periphery of the cooling hole.

The side of the support cam, which faces the opening direction of the conical body, is preferably curved and not connected to the opening of the conical body. Preferably, the support cam is arranged on the outer wall of the conical body. Preferably, the support cam extends from the mounting surface to the opening of the conical body and closes the periphery of the cooling hole.

The support cam preferably has a strip structure, with the two sides of the support cam being respectively connected to the mounting surface and opening of the conical body.

• Ein Verarbeitungsgerät für Radspeiche mit umliegender Verdickung des Kühllochs, umfasst Form, Rotationsschmiedemaschine, Stanzmechanismus;
• Form, ihre obere Oberfläche ist eine Positionierungsvorrichtung für Rotationsschmiedemaschine zur Positionierung des Rohlings auf der Form; Wobei die Seitenwand der Form konische Körperoberfläche ist, wobei die Seitenwand sinkend mit einer Auflagenockensform angeordnet ist;
• Rotationsschmiedemaschine umfasst: Antriebswelle für Rotationsschmiedemaschine, Pressvorrichtung, Rotationsrad. Die Antriebswelle für Rotationsschmiedemaschine ist mit der Unterseite der Form verbunden, die Pressvorrichtung ist auf der Form angeordnet, das Rotationsrad ist an der Seite der Form angeordnet; Wobei bei der Verarbeitung sich die Hauptantriebswelle, Form und Pressvorrichtung synchron drehen, wobei sich das Rotationsrad nach oben, unten, links und rechts an der Seite der Form bewegt, wobei der Rohling in der Richtung der Form gepresst wird, dadurch werden die Rotationsschmiedeteile hergestellt; Stanzmechanismus, Stanzmechanismus umfasst Stanzpositionierungsvorrichtung, Stanzantriebswelle, obere Stanzform, untere Stanzform, wobei die Stanzantriebswelle mit der unteren Seite der Positionierungsvorrichtung verbunden ist, wobei die Positionierungsvorrichtung zur Positionierung der Rotationsschmiedeteile auf dem Stanzmechanismus angeordnet ist, wobei sich die untere Stanzform nach dem Auflagenocken der Innenwand der Rotationsschmiedeteile richtet, wobei sich die obere Stanzform nach der unteren Stanzform sichtet.

The further technical solution of the present invention is as follows:

• A wheel spoke processing apparatus having a peripheral thickening of the cooling hole comprises a mold, a rotary forging machine, a punching mechanism;
• Form, its upper surface is a positioning device for rotary forging machine for positioning the blank on the mold; Wherein the side wall of the mold is a conical body surface, the side wall being arranged sinking with a support cam shape;
• Rotary forging machine comprises: drive shaft for rotary forging machine, pressing device, rotary wheel. The drive shaft for rotary forging machine is connected to the bottom of the mold, the pressing device is arranged on the mold, the rotary wheel is arranged on the side of the mold; Wherein, in processing, the main drive shaft, mold and pressing device rotate synchronously with the rotary wheel moving up, down, left and right on the side of the mold, the blank being pressed in the direction of the mold, thereby producing the rotary forged parts; Punching mechanism, punching mechanism includes punch positioning device, punch drive shaft, upper punching die, lower punching die, wherein the punch drive shaft is connected to the lower side of the positioning device, wherein the positioning device for positioning the rotary forging is arranged on the punching mechanism, wherein the lower punching mold after the resting cam of the inner wall of the Rotary forgings directed, with the upper die looks after the lower die.

Preference is given to several Auflagockensformen evenly distributed on the side wall.

Preferably, the support cam shape extends from the edge of the mold to the sidewall. Preferably, the side of the cradle cam mold facing the lower edge of the sidewall is curved and not connected to the lower edge of the sidewall.

Preferably, the rotary forge machine positioning device is a protruding positioning table for rotary forging machine; Wherein in positioning, the axis positioning hole of the blank is set on the positioning table for rotary forging machine.

Preferably, the punch drive shaft is disposed obliquely, wherein the rotary forging are positioned on the punch positioning device, wherein the support cam of the rotary forging is at a horizontal angle.

Preferably, the punch positioning device is a protruding punch positioning table; Wherein in positioning, the axis positioning hole of the rotary forging is set on the punch positioning table.

• Die genannte Radspeiche in der Erfindung hat umliegende Verdickung des Kühllochs an der Innenwand der Radspeiche, dadurch wird die Steifigkeit um das Kühlloch erhöht, wobei die Lebensdauer der Radspeiche auch verlängert wird. Aufgrund der Verdünnung des Materials zwischen den Kühllochern(nämlich, wo kein Kühlloch auf dem konischen Körper gibt) wird eine einzigartige konkave und konvexe Struktur an der Innenwand oder Außenwand des konischen Körpers der Radspeiche gebildet, darüber hinaus kann die Tragfähigkeit des Rades durch die gesamte Radspeiche gewährleistet, wobei die gesamte Steifigkeit der Radspeiche erhöht wird,
• und die Materialien zur Herstellung der Speiche können vernünftig und effektiv verwendet werden, das Gewicht der Radspeiche kann reduziert werden, wodurch das Gewicht des gesamten Fahrzeugs und der Kraftstoffverbrauch werden auch reduziert.

The advantages of the present invention are as follows:

• Said wheel spoke in the invention has surrounding thickening of the cooling hole on the inner wall of the wheel spoke, thereby the rigidity is increased around the cooling hole, wherein the life of the wheel spoke is also extended. Due to the thinning of the material between the cooling holes (namely, where there is no cooling hole on the conical body) a unique concave and convex structure is formed on the inner wall or outer wall of the conical body of the wheel spoke, moreover, the load capacity of the wheel through the entire wheel spoke ensuring that the overall stiffness of the wheel spoke is increased,
• and the materials used to make the spoke can be used reasonably and effectively, the weight of the wheel spoke can be reduced, thereby reducing the weight of the entire vehicle and also reducing fuel consumption.

According to the detection data, the fatigue strength can be effectively improved by the present invention and the life of the spoke is prolonged.

The present invention is suitable for large vehicles such as trucks and buses, with a new innovation and improvement for the wheel spoke of the existing vehicle.

list of figures

• 1 Fig. 12 is a schematic structural view of Embodiment 1;
• 2 Fig. 10 is a schematic structural view of Embodiment 2;
• 3 is a schematic view of said mold;
• 4 is a schematic view of the rotary forging machine;
• 5 is a schematic view of the punching mechanism;

In the figure, 10 is a mounting surface, 11 is a screw hole, 12 is an axis positioning hole, 20 is a conical body, 21 is a cooling hole, 22 is an inner wall, 30 is a bearing cam, 40 is a mold, 41 is a positioning table for a rotary forging machine, 42 is a conical body surface, 43 50 is a rotary forging machine, 50 is a rotary forging machine drive shaft, 52 is a press machine, 53 is a rotary wheel, 60 is a punching mechanism, 61 is a punching table, 62 is a punch drive shaft, 63 is an upper punch, 64 is a lower punch, a 70 is a blank, 80 is a rotary forging ,

embodiments

In connection with figures and embodiments, the present invention will be explained in more detail below.

In order to solve the problem of cracks around the cooling hole of the prior art wheel spoke, the present invention provides a wheel spoke with increased circumferential thickening of the cooling hole, comprising a mounting surface 10 , conical body 20 ; The cooling holes 21 are on the conical body 20 arranged the thickness of the spoke at the edge of the cooling hole 21 is greater than the thickness of the spoke between the cooling holes 21 , Due to the increase in rigidity around the cooling hole 21 and the dilution of the material between the cooling holes 21 a unique concave and convex structure of the wheel spoke is formed, in addition, the load capacity of the wheel can be ensured by the entire wheel spoke, whereby the overall stiffness of the wheel spoke is increased, and the materials for producing the spoke can be used reasonably and effectively, the weight of Wheel spoke can be reduced, reducing the weight of the entire vehicle and reducing fuel consumption too.

In the invention, the conical body extends 20 around the cooling holes 21 for a pad 30 with a certain thickness in the Thickness direction, with the support cams 30 the thickness of the edge of the cooling hole 21 is increased. Between the pad socks 30 and the conical body 20 a step structure or a smooth transition is formed.

Embodiment 1

Like in the 1 shows that the spoke structure in the present invention is a truncated cone. The lower end of the larger diameter truncated cone of the conical body 20 is open, wherein the upper end of the smaller diameter truncated cone an annular mounting surface 10 is, being on the annular mounting surface 10 screw holes 11 for the positioning of the wheel are evenly distributed, the center of the annular mounting surface 10 Axis positioning hole 12 is. On the conical body 20 the frustoconical contour of the spoke are cooling holes 21 evenly distributed, with the cooling hole 21 Through hole is where the number and size of the cooling hole 21 can be different. By the design of the cooling hole 21 The weight of the spoke can be reduced so that the spoke can also be cooled down. The cooling hole 21 may be circular holes, elliptical holes or other forms of through-holes. As a preferred embodiment of the present invention, the cooling hole is 21 a circular hole whose axis is perpendicular to the conical body 20 the frustoconical contour is.

On the inner wall of the conical body 20 and at the periphery of each vent hole 21 The thickness of the material is turned inwards around the cooling hole 21 increases, with the thickness of the material between the cooling hole 21 and cooling hole 21 is less than the thickness of said area. Namely, the conical body 20 at the edge of the cooling hole 21 extends in the thickness direction about a support cam 30 with a certain thickness. The pad cam 30 is on the inside wall 22 of the conical body 20 arranged, whereby by the contour of the inner wall 22 of the conical body 20 a concave and convex structure is formed, thereby the rigidity around the cooling hole 21 elevated. Due to the thinning of the material between the cooling hole 21 and cooling hole 21 the load capacity is increased, whereby the weight of the wheel spoke can be reduced, whereby the service life is extended.

In the embodiment, the support cam extends 30 from the mounting surface 10 to the opening of the conical body 20 and closes the circumference of the cooling hole 21 around. The side of the pad cam 30 that is the opening direction of the conical body 20 is facing, is curved and not with the opening of the conical body 20 connected.

Embodiment 2

Like in the 2 shows the pad cam 30 is on the outside wall 23 of the conical body 20 arranged. The pad cam 30 extends from the mounting surface 10 to the opening of the conical body 20 and closes the circumference of the cooling hole 21 around. The pad cam 30 has a stripe structure, with the two sides of the support cam 30 each with the mounting surface 10 and opening of the conical body 20 are connected.

The other features are the same as the embodiment 1 ,

Embodiment 3

In the embodiment, each support cams 30 on the inner wall 22 and outer wall 23 of the conical body 20 arranged.

The other features are the same as the embodiment 1 and 2 ,

A processing device for said wheel spoke, includes form 40 , Rotary forging machine 50 , Punching mechanism 60 ,

The rotary forging machine 50 is used to the blank 70 to forge and the rotary forgings 80 with support cams 30 manufacture, wherein the punching mechanism 60 used to make the rotary forgings 80 to punch and cool holes 21 manufacture, thereby a finished wheel spoke is produced.

Like in the 3 shows the top surface of the mold 40 is a positioning device for rotary forging machine for positioning the blank 70 on the mold 40 ; The side wall of the form 40 conical body surface 42 is and the side wall is sinking with a support cam shape 43 arranged. Whereby several edition cam forms 43 evenly distributed on the side wall. The pad cam shape 43 extends from the top of the mold 40 towards the side wall. The side of the support cam shape 43 , which faces the lower edge of the side wall, is curved and not connected to the lower edge of the side wall.

The rotary forge positioner is a protruding positioning table for rotary forging machine 41 ; Wherein in processing and positioning the axis positioning hole 12 of the blank 70 on the positioning table for rotary forging machine 41 is set.

Like in the 4 shows, the rotary forging machine 50 includes form 40 , Drive shaft for rotary forging machine 51 , Pressing device 52 , Rotary wheel 53 , The drive shaft for rotary forging machine 51 with the bottom of the mold 40 is connected, wherein the pressing device 52 on the mold 40 is arranged, wherein the rotary wheel 53 at the side of the mold 40 is arranged; During processing, the main drive shaft, rotate shape 40 and pressing device 52 synchronous, and the rotary wheel 53 moves up, down, left and right on the side of the shape 40 , where the blank 70 in the direction of the mold 40 is pressed, thereby turning the forged parts 80 produced.

Like in the 4 shows the punching mechanism 60 includes punch positioning device, punch drive shaft 62 , upper die 63 , lower die 64 , wherein the punch drive shaft 62 is connected to the lower side of the positioning device, wherein the positioning device for positioning the rotary forging 80 on the punching mechanism 60 is arranged, with the lower die 64 after the pad cam 30 the inner wall of the rotary forgings 80 directed, with the upper die 63 after the lower die 64 directed.

Around the upper die 63 and lower die 64 To make more stable in punching and to increase the yield is the punch drive shaft 62 arranged obliquely, the rotary forging 80 are positioned on the punch positioning device, the support cam 30 the rotary forging parts 80 lies in a horizontal angle. Due to the uniform load capacity of the support cam 30 when punching the upper die 63 and lower die 64 the yield is increased.

The punch positioning device is a protruding punch positioning table 61 ; Wherein in positioning the axis positioning hole 12 the rotary forging parts 80 on the punching table 61 is set.

1. 1) Schmieden:
   • 1.1) Herstellung der Form 40 nach der entworfenen Speichenstruktur;
   • 1.2) Montieren der hergestellten Form 40 auf der Antriebswelle für Rotationsschmiedemaschine 51;
   • 1.3) Stellen des ringförmigen Rohlings 70 auf der Form 40, auf der Form 40 ist eine Positionierungsvorrichtung für Rotationsschmiedemaschine zur Positionierung des Rohlings 70 angeordnet;
   • 1.4) Die Pressvorrichtung 52 presst den Rohling 70;
   • 1.5) Starten die Rotationsschmiedemaschine 50, wobei sich die Antriebswelle für Rotationsschmiedemaschine dreht, gleichzeitig werden die Form 40, der Rohling 70 und die Pressvorrichtung 52 gedreht;
   • 1.6) Nach dem programmierten Prozess wird das Rotationsrad 53 nach oben, unten, links und rechts bewegt, dadurch wird die Form der Radspeiche verformt. Weil die Form 40 eine konkave und konvexe Struktur hat, wird der Rohling 70 bei der Bewegung nach oben, unten, links und rechts des Rotationsrades 53 gepresst, danach wird der Rohling 70 in die Auflagenockensform 42 der Form 40 bewegt, letztens wird eine konkave und konvexe Form an der Innenwand des konischen Körpers 20 der Radspeiche gebildet, die Rotationsschmiedeteile 80 werden hergestellt;
   • 1.7) Die Rotationsschmiedemaschine 50 stoppt, die Pressvorrichtung 52 bewegt sich nach oben, das Rotationsrad 53 bewegt sich nach oben, nehmen die Rotationsschmiedeteile 80 aus.
2. 2) Kühlloch 21 stanzen:
   • 2.1) Stellen die Rotationsschmiedeteile 80 auf der Stanzpositionierungsvorrichtung, lassen das Auflagenocken 30 an der Innenwand des konischen Körpers 20 der Radspeichen sich nach der unteren Stanzform 64 richten;
   • 2.2) Starten die Pressvorrichtung, lassen die obere Stanzform 63 nach unten bewegen, durch das Schneiden zwischen der oberen Stanzform 63 und unteren Stanzform 64 wird das Kühlloch 21 gestanzt;
   • 2.3) Die obere Stanzform 63 bewegt sich nach oben, wobei das Produkt dreht, wobei sich die untere Stanzform 64 nach unten bewegt, dann wird das Kühlloch21 gestanzt;
   • 2.4) Wiederholen den Schritt 2.3), bis alle Kühllöcher 21 gestanzt werden.

The manufacturing process of wheel spokes is as follows:

1. 1) Forging:
   • 1.1) Production of the mold 40 after the designed spoke structure;
   • 1.2) Mounting the manufactured mold 40 on the drive shaft for rotary forging machine 51 ;
   • 1.3) placing the annular blank 70 on the mold 40 , on the form 40 is a positioning device for rotary forging machine for positioning the blank 70 arranged;
   • 1.4) The pressing device 52 presses the blank 70 ;
   • 1.5) Start the rotary forging machine 50 , where the drive shaft for rotary forging machine rotates, at the same time the shape 40 , the blank 70 and the pressing device 52 turned;
   • 1.6) After the programmed process becomes the rotation wheel 53 moved up, down, left and right, this deforms the shape of the wheel spoke. Because the shape 40 has a concave and convex structure, becomes the blank 70 when moving up, down, left and right of the rotary wheel 53 pressed, then the blank 70 in the edition cam shape 42 the form 40 moved, recently, a concave and convex shape on the inner wall of the conical body 20 the wheel spoke formed, the rotary forgings 80 are produced;
   • 1.7) The rotary forging machine 50 stops, the pressing device 52 moves up, the rotary wheel 53 moves up, take the rotary forgings 80 out.
2. 2) cooling hole 21 punch:
   • 2.1) Make the Rotary forgings 80 on the punch positioning device, leave the overlay cam 30 on the inner wall of the conical body 20 the wheel spokes follow the lower die 64 judge;
   • 2.2) Start the pressing device, leave the upper die 63 Move down by cutting between the upper die 63 and lower die 64 becomes the cooling hole 21 punched;
   • 2.3) The upper die 63 moves upwards, with the product spinning, leaving the bottom die 64 moved down, then the cooling hole 21 is punched;
   • 2.4) Repeat the step 2.3 ), until all the cooling holes 21 be punched.

It should be noted that the explanation in the above embodiments is not limited to the applications of the invention. All equivalent changes and modifications made on the basis of the scope of the present invention should be considered to be within the scope of the present invention.

Industrial applicability

The present invention discloses a wheel spoke having increased circumferential thickening of the cooling hole on the inner wall of the wheel spoke which is lightweight, thereby increasing the rigidity around the cooling hole, and extending the life of the wheel spoke, while being suitable for large vehicles such as trucks and buses , which is a new innovation and improvement for the wheel spoke of the existing vehicle.

Claims (14)

A wheel spoke with surrounding thickening of the cooling hole, comprising a mounting surface, conical body; characterized in that the cooling holes are disposed on the conical body, wherein the thickness of the spoke at the edge of the cooling hole is greater than the thickness of the spoke between the cooling holes, the conical body around the cooling holes around a support cam of a certain thickness in the thickness direction extends. A wheel spoke with surrounding thickening of the cooling hole Claim 1 , characterized in that the support cam is disposed on the inner wall of the conical body. A wheel spoke with surrounding thickening of the cooling hole Claim 2 , characterized in that the support cam extends from the mounting surface to the opening of the conical body and surrounds the cooling hole. A wheel spoke with surrounding thickening of the cooling hole Claim 3 , characterized in that the side of the support cam, which faces the opening direction of the conical body, is curved and not connected to the opening of the conical body. A wheel spoke with surrounding thickening of the cooling hole Claim 1 , characterized in that the support cam is arranged on the outer wall of the conical body. A wheel spoke with surrounding thickening of the cooling hole Claim 5 , characterized in that the support cam extends from the mounting surface to the opening of the conical body and surrounds the cooling hole. A wheel spoke with surrounding thickening of the cooling hole Claim 6 , characterized in that the support cam has a strip structure, wherein both sides of the support cam are respectively connected to the mounting surface and opening of the conical body. A processing device for Radspeiche with surrounding thickening of the cooling hole after Claim 1 characterized in that it comprises mold, rotary forging machine, punching mechanism; Form, its upper surface is a positioning device for rotary forging machine for positioning the blank on the mold; Wherein the side wall of the mold is a conical body surface, the side wall being arranged sinking with a support cam shape; Rotary forging machine comprising drive shaft for rotary forging machine, pressing device, rotary wheel. Wherein the drive shaft for rotary forging machine is connected to the bottom of the mold, the pressing device being arranged on the mold, the rotary wheel being arranged on the side of the mold; In the processing, the main drive shaft, mold and pressing device rotate synchronously, and the rotary wheel moves up, down, left and right on the side of the mold, pressing the blank in the direction of the mold, thereby producing the rotary forgings; Punching mechanism, punching mechanism includes punch positioning device, punch drive shaft, upper die, lower die; the punch drive shaft being connected to the lower side of the positioning device, the positioning device being positioned on the punching mechanism for positioning the rotary forging, the lower punching die following the support cam of the inner wall of the rotary forgings, the upper punching die aligning with the lower punching die. A wheel spoke with surrounding thickening of the cooling hole Claim 8 , characterized in that several Auflagockensformen are distributed uniformly on the side wall. A wheel spoke with surrounding thickening of the cooling hole Claim 8 , characterized in that the cradle-shaped mold extends from the upper edge of the mold towards the sidewall. A wheel spoke with surrounding thickening of the cooling hole Claim 8 , characterized in that the side of the support cam mold facing the lower edge of the side wall is curved and not connected to the lower edge of the side wall. A wheel spoke with surrounding thickening of the cooling hole Claim 8 characterized in that the positioning device for rotary forging machine is a protruding positioning table for rotary forging machine; where in the positioning of the Axis positioning hole of the blank is placed on the positioning table for rotary forging machine. A wheel spoke with surrounding thickening of the cooling hole Claim 8 , characterized in that the punch drive shaft is disposed obliquely, wherein the rotary forging are positioned on the punch positioning device, wherein the support cam of the rotary forging is at a horizontal angle. A wheel spoke with surrounding thickening of the cooling hole Claim 8 characterized in that the punch positioning device is a protruding punch positioning table; wherein, in the positioning, the axis positioning hole of the rotary forging is set on the punch positioning table.

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