Spiral Bevel Gearboxes

SPIIRAL BE SP BE VEL GEARBOX GEARBOXE S

Catalogu Catalogu e 04/2 04/20 010: 10:

SPIIRAL BE SP BE VEL GEARBOX GEARBOXE S

Catalogu Catalogu e 04/2 04/20 010: 10:

SPIIRAL BE SP BE VEL GEARBOX GEARBOX

Cross section :

SPIRAL BEVEL GEARBOX

Design: The basic gearbox housing is of cubiod form for dimensional symmetry. All input and output sides have a register for central location. The gearbox housing and bearing flanges are made from high quality grey cast iron and are machined on all sides with tapped mounting holes. The use of robust roller bearings ensures a long operating life. The modular design system allows designs with multi-shaft and take-off drives with up to 6 shafts. The drive input is usually on shaft d1, but shaft d2 or d3 can also act as the driver.


Gearing: The bevel gearboxes incorporate the Klingelnberg palloid-spiral gearing. With the spiral tooth form and largearea of contact,high torques can be transmitted. The bevel gear sets are made from high quality alloy steel, case hardened and lapped in pairs. With these features an optimum tooth contact pattern is achieved, together with very quiet running and good efficiency. The smaller gear in a pair is often called the pinion ; the larger, either the gear , or the wheel .


Spiral bevel gearboxes. 

Unviersal application

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Easy to install

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Designed with the machine in mind

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Efficient and reliable

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Available in different designs


Spiral bevel gearboxes. Sizes: 050/ 100/ 200/ 230/ 250/ 300/ 370/ 400/ 500/ 600

Ratios mathematically exact: 0.5 up to 6.000

Nominal output torque: 10 - 8500 Nm

Types: K/ L/ LS/ LV/ H/ MK/ ML/ MLS/ MLV/ MH

Variants: More than 50 000


Type-code: K K K K K K K K

L L L L L L L L L L

H H H H H H H H H H

050 100 200 230 250 300 370 400 500 600


Type K: 

Sizes:

100, 200, 230, 250, 300, 370, 400

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Ratio:

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Size:

50 ratio up to 4.000 only.

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Design:

BA 10, 20….

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Size:

500 and 600 are not available.

1.000 up to 6.000


Type L: 

Sizes:

100, 200, 230, 250, 300, 370, 400, 500, 600

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Ratio:

1.000 up to 6.000

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Size:


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Design:

BA 30, 40, 50, 60….


Type LV: 

Sizes:

100, 200, 230, 250, 300, 370, 400, 500, 600

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Ratio:

1.000 up to 6.000

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Size:


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Design:

BA 30, 40, 50, 60 ….

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Shaft:

Through shaft (A to B) on design 30 and 60 can transmit higher torques. The permissible torque of the bevel gear is the same as type L.


Type LS: 

Sizes:

100, 200, 230, 250, 300, 370, 400, 500, 600

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Ratio:

1.250 up to 2.000

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Size:

50 not avilable.

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Design:

BA 30, 40, 50….

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Shaft:

Through shaft A-B is speed increased


Type H: 

Sizes:

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Ratio:

1.000 up to 6.000

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Size:


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Design:

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100, 200, 230, 250, 300, 370, 400, 500, 600

BA 70, 80….

Bearings: On the output side are reinforced for higher radial load.


Type H with compression coupling:

Side A

Side B


Type UL: 

Sizes:

1, 2, 23, 25, 30, 37, 40.

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Ratio:

1.000 up to 2.000

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Size:

Other sizes are not available.

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Design:

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Reversing gearbox for changing rotation.

BA 30.


Type MK ML MH: 

Sizes:

Like K, L, and H type.

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M-:

Direct connection motor and gearbox

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Design:

Like K, L, and H type.

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Version:

A, B and C see catalogue page 76-77


Indentification of sides / direction of rotation:


Identification of sides / Direction of rotation:

To describe and define a spiral bevel gearbox accurately, uniform standards are required. The important points here are a way of identifying each side of a gearbox and the positions of the bevel gears, and clear definition of the directions of rotation. Identification of sides: The sides of a spiral bevel-gearbox are identified with the letters A,B,C,D,E, and F. See previous drawing. Postitions of bevel gears. The bevel gears are positioned against sides C and A, and side C is defined as the input side. The output gear is positioned side A . Directions of rotation: The direction of rotation of each shaft end is defined as though you were looking fro m th e o utsi de at the shaft en d. From this viewpoint the direction of rotation is given as clockwise or counterclockwise.


Manufacturing processes for bevel gears:

• Klingelnberg

• Gleason

• • • •

• Graessner, Brockefeld & Maier • Conical depth of teeth along with of tooth face • Generate in single dividing

Vogel, Tandler, ZAE, ZZ, Atek parallel high tooth Tooth cutting with special milling cutter ( christmas tree cutter) • Tooth cutting with two-piece cutter head

• Tooth cutting with one-piece cutter head


Gear tooth quality:

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There are 12 teeth qualities which are manufactured today, where 1 is the finest and 12 the roughest teeth quality.

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Quality 2-7 polished

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Quality 5-7 lapped

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Quality 5-9 roll-milled, roll-planed, roll-pushed

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Quality 7-12 form-milled, form-pushed

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Quality 8-12 punched, pressed, sintered, extruded


Gear tooth quality: involute diagram base of a gear tooth

tip of a gear tooth DIN - quality


Gear tooth quality:


Gear tooth quality: 1.) Princi ple: Install always according to correct fit of the flanks without considering whether the tooth ends are adjusted or not. 2.) Correct flank fit: in unlo aded state: At the forward flank (v) : bearing face in the centre At the backward flank (r) : bearing face nearer to the large diameter. 3.) Moti on of th e flank fit: The greater the load the greater the displacements and deviations and the stronger the flank engagement will be displaced towards the small diameter. Consequently.: Weak supporting requires short bearing faces strongly inclined to the large diameter in unloaded state. Caution!Too short supporting faces reduce resistance and promote creation of noise! Consequently, not shorter than 50% of tooth length or reinforce supports. 4.) Testing of fl ank fit: Tooth flanks of the larger wheel to be coated with thick oil, have some revolutions in operation direction. The bearing faces will become visible as bright places. The twist side play ( tooth-play) may normally not exceed 0,15 to 0,20 mm


Input speed for spiral bevel gearbox: The max. input speed of Spiral bevel gearboxes are dependent according to gearbox size, runtime and mounting position. Short high speed up to 4500 rpm are possible according to gearbox size. At continous operation, revs higher than 3000 rpm, a bearing and heat calculation according to gearbox size should be done. If mounting pos. C or D under,higher heat production happens because of the oil level as mounted all shafts horizontal.


Short term peak torque:

M tmax = M tnenn x 1,8

(up to 1000 times during the lifetime)

Vaild for all gearboxes of Wilhelm Vogel GmbH Antriebstechnik


Efficiency:

Gr. 050

0,8 =

80 %

Gr. 100 - 230

0,9 =

90 %

Gr. 250 - 400

0,95 =

95 %

Gr. 500 - 600

0,96 =

96%

SPIRAL BEVEL GEARBOX Backlash: Backlash is the error in motion that occurs when gears change direction. It exists because there is always some clearance between the trailing face of the driving tooth and the leading face of the tooth behind it on the driven gear, and that gap must be closed before force can be transferred in the new direction. The term "backlash" can also be used to refer to the size of the gap, not just the phenomenon it causes; thus, one could speak of a pair of gears as having, for example, "0.1 mm of backlash." A pair of gears could be designed to have zero backlash, but this would presuppose perfection in manufacturing, uniform thermal expansion characteristics throughout the system, and no lubricant. Therefore, gear pairs are designed to have some backlash. It is usually provided by reducing the tooth thickness of each gear by half the desired gap distance. In the case of a large gear and a small pinion, however, the backlash is usually taken entirely off the gear and the pinion is given full sized teeth. Backlash can also be provided by moving the gears farther apart. For situations, such as instrumentation and control, where precision is important, backlash can be minimised through one of several techniques. For instance, the gear can be split along a plane perpendicular to the axis, one half fixed to the shaft in the usual manner, the other half placed alongside it, free to rotate about the shaft, but with springs between the two halves providing relative torque between them, so that one achieves, in effect, a single gear with expanding teeth. Another method involves tapering the teeth in the axial direction and providing for the gear to be slid in the axial direction to take up slack.


Backlash:

Vogel has 3 quality standards.

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Quality 10 arcmin. standard

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Quality 7 arcmin. low backlash gears are sized and lapped in pairs

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Quality 4 arcmin. low backlash ZPG zyclo palloid fine grind For low backlash gearboxes 7 and 4 arcmin we have to charge a higher price. The price is depended on number of pieces. Please enquire.

All of our gearboxes will be measured for backlash with 2% of the nominal output torque


Oil change: Oil bath temp.

Oil change interval after… operating h

SPIRAL BEVEL GEARBOX Sticker plate Name plates:

There are 2 different name plates: 1 Sticker mostly used on small planetary gearboxes 2 Aluminium plate used for bigger gearboxes Markings;     

A.-Nr. Order confirmation no. Id. Nr. Article #or Ident # Typ: Type and size i= Ratio BA: Design week and year of manufacturing

Aluminium plate


Old Version

–

New Version:

Size 0 Size 1 Size 2 Size 23 Size 25 Size 30 Size 37 Size 4 Size 5 Size 6

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50 100 200 230 250 300 370 400 500 600

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Some dimensions has been changed you will find the comparison table on our home page www.vogel-antriebe.de /CAD/Construction/ Vogel CAD News.

SPIRAL BEVEL GEARBOX SPIRAL BEVEL GEARBOX

: Functional range:

The gearboxes suit general purposes:

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General machinery Packaging machines Speial purpose machines Lifting gear Crane machinery Rolling mills Ropeways Conveyors drives Wire stranding machine etc.

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Universally usable Easy to fit and adaptable Easy to design and retrofit Saves cost Compact modular design High power to weight ratio High efficiency Quiet running Easy to maintain


Manuals and maintenance instructions:

Downloads under www.vogel-antriebe.de or www.vogel-antriebe.com are available in diff erent languages.


Competitors:

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Tandler Atek Graessner ZZ ZAE Schäfer SEW Flender / Siemens Hub City


Thank you for your attention:

Spiral Bevel Gearboxes

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