Technische Beschreibung.cdr - Framo Morat

framo.morat.com

Technische Beschreibung.cdr - Framo Morat

Table of contents

Technical description.............................................................................................. page 3

Operating instructions............................................................................................ page 9

LinearChain with 25mm pitch

LinearChain 25 PS................................................................................................. page 14

LinearChain 25 PSG.............................................................................................. page 16

LinearChain with 40mm pitch

LinearChain 40 PS.................................................................................................page 20

LinearChain 40 PSG.............................................................................................. page 22

LinearChain 40 PSR.............................................................................................. page 24

LinearChain with 60mm pitch

LinearChain 60 PS.................................................................................................page 28

LinearChain 60 PSG.............................................................................................. page 30

LinearChain 60 PSR.............................................................................................. page 32

LinearChain 60 PD.................................................................................................page 34

LinearChain 60 PDG..............................................................................................page 36

Drive Housings

Drive housing general .........................................................................................page 40

Drive housing for LinearChain 25 ......................................................................... page 41

Drive housing for LinearChain 40.......................................................................... page 43

Drive housing for LinearChain 60.......................................................................... page 44

LinearChain magazines......................................................................................... page 48

LinearChain covers................................................................................................ page 49

Technical questionnaire......................................................................................... page 51

Subject to technical changes

LinearChain

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com

D5-201e2/09.05 1


Subject to technical changes

LinearChain

Technical

description

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com

D5-203e2/09.05 3


4

D5-204e3/02.09

Technical Description

1. Introduction

®

Framo LinearChains are made from precision manufactured chain links of a special design which enables the

chain to push as well as pull heavy loads.

The chain links have a special profile with interlocking fingers at one end enabling the chain to roll or fold-up in

one direction only. When unfolded, the fingers latch together to form a rigid thrust device. The close tolerance

manufacture of the chain links and other components means that both push and pull linear motion with low

backlash and high repeatability is achieved. When retracted the Push-Pull Chain folds up to occupy minimum

space in relation to the required stroke. This feature is especially of benefit where long stroke push-pull

movement is required; stroke lengths of 5 metres or more are not uncommon.

®

The Framo LinearChain is an alternative to standard solutions using rack and pinion, screw-jacks, hydraulic and

pneumatic cylinders or hoist mechanisms and can often present a unique solution where space is severely

limited.

The Push-Pull Chain can be selected for thrust loads from a few kilogrammes to several tonnes - even where

longer strokes are required. A Push-Pull Chain drive system can be configured with standard Chain Guide Rails

where there is a danger of bending movement occuring. It is also possible to configure systems using several

chains in a parallel drive geometry where higher thrust loads are required.

2. LinearChain drive systems

The chain drive system comprises a special housing with internal chain guides, spocket drive wheel and a

keywayed drive shaft. This can be connected to a standard gear motor. Alternatively a Framo Compacta slip-on

Rotary Actuator - a gear motor with integral multi-turn limit switches and optional reversing contactors or

potentiometer can often be used. (Refer to separate catalogue).

To prevent the Push-Chain from folding during the linear thrust motion a special front end link is provided. This

ensures that the force-line is off-centre to the chain pins creating a bending moment which forces the chain

fingers to lock tightly. The Push Chain can be used for reciprocating push and pull movement, horizontally or

vertically. Where possible chain guide rails should be used to support and guide the chain.

The Guide Rail is unecessary when:

• The Push-Chain runs across a flat surface (eg. steel plate)

• The linear travel (stroke) is less than 4 m

• There is no danger of radial loads occurring along the thrust axis

3. Chain types and performance criteria

The selection of the correct chain size and type will depend on the application, the required performance and

operating criteria.

The following information is required:

• Thrust force

• Working stroke

• Linear speed

• Operating frequency

• Temperature

Framo Push-Chains are manufactured with a standard pitch of 25 mm, 40 mm and 60 mm (pitch is the distance

between the pivot pins).

4. Materials of Construction

®

Framo LinearChains are manufactured from treated alloy steels. The chain can withstand temperatures of up to

180°C - for short periods even higher temperatures.

For cases where temperatures of up to 600°C can occur the Push-Chain can be supplied in heat-resistant steels.

5. Typical Applications

®

Framo LinearChains have successfully been used in the following sectors:

Industrial furnaces, cold sheet metal working, casting shops, rolling mills, machine tools, automotive

manufacturing, warehousing, internal works transport systems, chemical industry, nuclear industry.

Subject to technical changes

LinearChain

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com


6. Example of application

Battery furnace.

®

The Framo LinearChain is used to move a platform in and out of a furnace for heat treatment of the product. The

chosen LinearChain geometry was as shown in diagram '5' below. The rear end of the chain is fixed to the drive

housing and folds above the drive assembly without further support. A simple cover was fabricated to guard the

chain.

7. Saftey regulations and permissable use

®

Framo LinearChains should not be used for applications involving the movement of loads which

can endanger working personnel through the operation or system failure. Use of the Push-Pull

Chain for personnel transport system is not permissable without prior written approval.

We would refer users to the relevant regulations and recommended practices regarding the

provision of guard rails or covers to all moving parts of machines. Furthermore overhead hoist

mechanisms for heavy loads using the Push-Pull Chain are not approved.

8. Examples of LinearChain storage geometry

9. Design calculations

Type 25

Type 40

Type 60

Pitch of the chain [mm] 25

40

60

Stroke per drive shaft revolution [mm] 200 240

360

Drive speed n [rpm] at given

linear speed v [mm/s]

n =

v x 60

8 x p

Required torque M [Nm] at the drive shaft for thrust force F [N]

M =

t

( h= ca. 0,8 without storage)

( h=

ca. 0,65 with storage)

F x d

2 x x 1000

h

Required Power P [KW] at the drive shaft for Torque M [Nm]

t

Subject to technical changes

LinearChain

1 2 3 4 5 6

P=

M x n

t

9550

9 10

12 13

n =

v x 60

6 x p

Pitch 25mm di = 65,3 mm

Pitch 40mm di = 80 mm

Pitch 60mm di = 120 mm

n =

v x 60

6 x p

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com

D5-205e5/03.12 5


6

D5-206e3/02.09

10. Loading characteristics

The two load point holes in the front end-link are provided to ensure that a thrust force reaction exerts a

radial turning movement about the chain pins.

As a consequence the chain finger is under compression, the chain is rigid and cannot fold.

For this reason it is not permissable to fix the load point to only one of the holes.

11. Horizontal Thrust Force in relation to stroke

LinearChain without guide rail, load point guided

12000

10000

8000

6000

4000

2000

Front link

LinearChain without guide rail, load point guided

N

35000

30000

25000

20000

15000

10000

5000

40 PS / PSG

25 PS / PSG

60 PSR

60 PS / PSG

Compression Zone

0,5 m 1 m 1,5 m 2 m 2,5 m 3 m 3,5 m 4 m

60 PD / PDG

0,5 m 1 m 1,5 m 2 m 2,5 m 3 m 3,5 m 4 m

The diagrams refer to horizontal applications where the chain runs across a flat surface. For vertical

applications please contact the manufacturer. In case of impact load or high stroke frequency (more than 15

strokes/h) we suggest the next higher size (pitch). Stronger versions are available on request!

Subject to technical changes

N

LinearChain

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com

40 PSR


12. Calculation of chain lengt h and number of chain links

Calculation of chains without special end link

Drive housing 90°

C

M

Teilung 25: total lenght of chain L = C + M + (6xP)

Teilung 40: total lenght of chain L = C + M + (5xP)

Teilung 60: total lenght of chain L = C + M + (5xP)

total lenght of chain L = C + M + (5xP)

Calculation of chains with special end link

Drive housing 180°

Drive housing 90° Drive housing 90° with

180°-return

C M C

M

{

C

M

C = usable stroke

M = basic position (depends on cust. requirements)

P = pitch of chain

Teilung 25: total lenght of chain L = C + M + (11xP) Teilung 25: total lenght of chain L = C + M + (16xP)

Teilung 40: total lenght of chain L = C + M + (10xP)

Teilung 40: total lenght of chain L = C + M + (14xP)

Teilung 60: total lenght of chain L = C + M + (9xP)

Teilung 60: total lenght of chain L = C + M + (13xP)

Subject to technical changes

LinearChain

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com

D5-207e3/03.08 7


Subject to technical changes

LinearChain

Operating

instructions

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com

D5-209e2/09.05 9


10

D5-210e2/09.05

Operating instructions

1.0 Safety information

Before mounting and starting operation read all documents carefully and follow the instructions.

Consider the weight of the chain while you unpack it and set it up. Protect yourself with safety

shoes in case the chain falls down or slips off.

The delivered chain may be inserted into the drive housing. In this case the chain is secured

against unrolling by wire or cable connector.

Attention: The chain may unroll by it's own weight during installation. To avoid this the drive shaft

has to be fixed before you remove the safety device (wire, cable connector).

Use caution while handling the unloaded chain. In unloaded condition the chain can buckle and

may cause bruises. Wear safety gloves to protect yourself.

Mounting and installation has to be done by qualified personnel only.

Meet the specified location deviation (see next page).

A structural compensation of the tolerances is required if using two parallel chains in a rigid

system.

It is the customers responsibility to protect moving parts from unintentional touch. There is

danger of injuries.

In very unclean areas we recommend to use a cover to avoid a blocking of the chain. In case of

doubt check with the manufacturer.

Don't change the drive. Changes or modifications may cause danger and the manufacturer

doesn't accept any liability for changed or modified drives.

Don't block the drive while operating. This may damage the drive seriously.

For the electrical or hydraulic installation and operation we refer to the concerning paragraphs in

the operating instructions of the motor.

Don't overload the drive. The values for stroke forces are stated in the technical description and

can't be exceeded. Otherwise the drive may be damaged seriously.

With appearance of wear like a strong bending of the chain or backlash we recommend to

change the chain before the breakdown is reached.

2. Saftey regulations and permissable use

Framo Push-Pull Chains should not be used for applications involving the movement of loads which

can endanger working personnel through the operation or system failure. Use of the Push-Pull

Chain for personnel transport system is not permissable without prior written approval.

We would refer users to the relevant regulations and recommended practices regarding the

provision of guard rails or covers to all moving parts of machines. Furthermore overhead hoist

mechanisms for heavy loads using the Push-Pull Chain are not approved.

Subject to technical changes

LinearChain

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com


3. Installation Misalignment

The drive housing has to be installed in accordance with the adjustment tolerances given below to achieve a

maximum thrust and a minimum rate of wear.

The center line of the LinearChain middle roller to the reaction guide plates has to be especially noted.

Angular misalignment

Reaction guide plate

Vertical misalignment

max. 0,5 mm deeper

Reaction plate - sliding surface

4. Lubrication and maintenance

As a consequence of the high grade of materials used and the robust construction of the LinearChain, the

only maintenance required is a regular lubrication of the surfaces. The lubrication intervals will depend upon

the working criteria and especially the operating frequency and working temperature.

It is recommended that all moving parts be inspected regularly for signs of wear.

Lubricating oil can be applied evenly across the whole length of the chain using a brush. Standard synthetic

lubricating oils such as Mobilith SHC PM from Mobil or similar can be used in most applications. For high

duty-rating applications we would recommend using automatic brush lubricators. A standard Teflon spray is

suitable too.

Subject to technical changes

LinearChain

Kettenteilung Typ 25 Typ 40 Typ 60

H1 9 18 24

H2 0 2 3

H3 40,5 49,2 75,2

H4 24,8 30,8 44,7

H5 32,7 40 60

Horizontal misalignment

max. +/- 0,5 mm

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com

D5-211e4/05.10 11


12

D5-212e2/09.05

5.0 End of life time

Push chains signal their end of life time by an obvious misalignment of the chain links from the ideal line.

You may send the drive to the manufacturer for overhauling by reaching the end of life time

Please pay attention to the appropriate disposal regulations and laws if you want to dispose the drive.

Subject to technical changes

LinearChain

Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657 / 88-0 www.framo-morat.com

Höchst 7 • D-79871 Eisenbach Fax: +49 (0) 7657 / 88-333 info@framo-morat.com

More magazines by this user
Similar magazines