Leantechnik SHB Series Скачать руководство пользователя страница 23 | Manualshive

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11 Maintenance / Inspection / Switching frequency

11 Maintenance / Inspection / Switching frequency
11.1 Switching frequency

The stepless holding brake (SHB) is designed for a switching frequency of up to 200,000 switching operations.

11.2 Inspection

Check the condition

11.3 Maintenance

The stepless holding brake (SHB) is largely maintenance-free

i

If the stepless holding brake (SHB) no longer meets the required characteristics or if the prescribed safety for
working on the machine or system is no longer assured, the brake must be inspected by Leantechnik AG and,
if necessary, professionally repaired and approved.

Action

Note/Comment Interval Execution

Function test Carry out regular function tests see Section 10.3

The profile rail must be checked regularly for soil-
ing with friction-reducing substances and cleaned
if necessary (see Section 11.4).
Special measures are required in the event of
heavy dust and dirt accumulation or extreme envi-
ronmental conditions.
Please contact Leantechnik AG

Check profile rail

Q u a l i f i e d
personnel

At least every 6
months

Measure Condition Interval

Execution

Visual inspection

Pneumatics

Signs of wear

Profile rail

Determined by machine

operator

depending

on installation situation

Please consult Leantech-

nik AG

After each EMERGENCY STOP

Determined by machine

operator

depending

on installation situation

Please consult Leantech-

nik AG

Q u a l i f i e d
personnel

Leantechnik
AG

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Содержание SHB Series

Страница 1: ...1 www leantechnik com Operating instructions Stepless holding brake SHB Issue date 2017 09 LEANTECHNIK AG Sizes 5 0 5 3 Safety brake for profile rail guides ...

Страница 2: ...tions have been applied 7 3 2 Liability 7 3 3 Warranty 7 3 4 Notes 7 4 Product description 4 1 Scope of delivery delivery condition 8 4 2 Function 8 5 Technical data 5 1 Notes 9 5 1 1 Conditions of use 9 5 1 2 Ambient temperature 9 5 1 3 Protection class 9 5 1 4 Noise emissions 9 5 1 5 Installation location 9 5 1 6 Prerequisite for use of the product 9 5 1 7 Technical data 10 6 Correct use 6 1 Ins...

Страница 3: ... Installation process 20 9 Switching condition monitoring 21 10 Commissioning 10 1 Brake test before commissioning 22 10 2 Brake test static 22 10 2 1 Static brake test 22 10 3 Brake test during operation 22 10 3 1 Regular function check static 22 11 Maintenance Inspection Switching frequency 11 1 Switching frequency 23 11 2 Inspection 23 11 3 Maintenance 23 11 4 Cleaning 24 12 Disassembly 25 13 D...

Страница 4: ...ys keep the operating instructions easily accessible near the brake 1 1 Definitions of terms Term Meaning Stepless holding brake SHB Pneumatically actuated spring applied brakes as a component for holding and delaying moving machine parts Rated holding force F Is the theoretical holding force assigned to the designation The nominal holding force lies within the specified nominal holding force tole...

Страница 5: ...e eliminated by means of suitable protective measures Brakes for safety related applications must be used in a single or redundant manner according to the required category to achieve the required performance level PLr as defined by EN ISO 13849 This is invariably the task of the system manufacturer Symbol Signal word Meaning DANGER Indicates an imminent danger If it is not avoided death or seriou...

Страница 6: ...ction of the brake must be checked both after installation and after prolonged periods of system inactivity 2 5 Required protective measures by the user Covering of moving parts to protect against crushing and entrapment Provision of an additional corrosion protection measure if the brake is used in extreme environmental conditions or outdoors with direct weather influences 2 6 Dimensioning of fur...

Страница 7: ...kes Handling or operating errors 3 4 Notes 3 3 Warranty The warranty conditions correspond to the conditions of sale and purchase of Leantechnik AG www leantechnik com Defects must be reported to Leantechnik AG immediately after discovery Note on the Machinery Directive 2006 42 EC The product is a component for installation in ma chinery in accordance with Machinery Directive 2006 42 EC In conjunc...

Страница 8: ...afe principle with the stepless holding brake SHB working as a safety brake By venting the stepless holding brake SHB with the required operating pressure the clamping element of the brake is pressed against the cup spring The profile rail can be moved Fig 1 By venting the stepless holding brake SHB the cup spring acts on the brake s clamping element The profile rail is clamped Fig 2 The maximum p...

Страница 9: ...ted against sol id foreign bodies with a diameter of 1 mm and against splashing water on all sides 5 1 4 Noise emissions Generally no noise emissions 5 1 5 Installation location The stepless holding brake SHB can be used in any installation position 5 1 6 Requirements for the use of the product Compare the limit values in these operating instructions with the current application e g Pressure Clamp...

Страница 10: ...h 4 8m L K Position für Transportsicherung position of transportation lock H I J S T ACHTUNG Bremse nie ohne Führungsschiene betreiben Das Betätigen der Bremse ohne Führungs schiene führt zu Beschädigung ATTENTION Never operate the brake without a guide rail Activation of the brake without a guide rail will cause damage SHB1 kurze Ausführung Induktiver Sensor Fa B Erforderliche min Dic des kundens...

Страница 11: ... J mm G 1 8 9 5 Connection Ma 12Nm K mm M6 M8 M10 L mm 66 79 4 112 4 Balluff inductive sensor M mm BES516 3005 G E4 C PU 05 N mm 25 25 25 O mm 54 2 0 1 62 0 1 92 2 0 1 P mm 26 29 5 42 7 Q mm 2 2 1 1 R mm 4 2 3 S mm 15 15 29 T mm 23 27 48 Min required thickness U mm 10 15 35 of the customer side mounting flange steel Nominal holding force 3 4 N 1750 3000 6000 at 6 bar Nominal holding force 3 4 N 50...

Страница 12: ...nie ohne Führungsschiene betreiben Das Betätigen der Bremse ohne Führungs schiene führt zu Beschädigung ATTENTION Never operate the brake without a guide rail Activation of the brake without a guide rail will cause damage 3 Mindesthaltekraft bei drucklosem Zus 4 Bei einer Schalthäufigkeit 200 000 m SHB2 lange Ausführung Induktiver Sensor Fa Balluff Erforderliche min Dicke des kundenseitigen Anbauf...

Страница 13: ...8 9 5 Connection Ma 12Nm K mm M6 M8 M10 L mm 66 79 4 112 4 Balluff inductive sensor M mm BES516 3005 G E4 C PU 05 N mm 25 25 25 O mm 54 2 0 1 62 0 1 92 2 0 1 P mm 26 29 5 42 7 Q mm 2 2 1 1 R mm 4 2 3 5 5 S mm 15 15 29 T mm 23 27 48 Min required thickness U mm 10 15 35 of the customer side mounting flange steel Nominal holding force 3 4 N 5000 7500 15000 at 6 bar Nominal holding force 3 4 N 5000 75...

Страница 14: ... special measures 6 2 Limitations The brake is not suitable for use in heavily soiled environments The brake is not suitable for use in high ambient temperatures 70 C The brake is not suitable for use in liquid media The brake is not suitable for use in a vacuum The brake not suitable for contact with abrasive media e g friction and grinding dust The brake is not suitable for contact with aggressi...

Страница 15: ...ables The greater the sum of the switching times the later the deceleration of the load due to longer lasting acceleration The stopping distance stopping time becomes longer with constant holding force Designation tKo s Stopping time Time Signal interruption to standstill of the load V0 m s2 Initial speed Vmax m s2 Maximum speed 6 Correct use 1 Path 2 Speed 3 Axial force β Angular position 0 horiz...

Страница 16: ...f the load aB g x sin β 9 81x sin 90 9 81 m s2 Acceleration of the load SSys V0 tSys aB tSys2 0 5 m s2 SSys 0 5 0 079 9 81 0 0792 0 5 m s2 SSys 0 071 m s2 tSys t50 tV tSV 0 043 0 016 0 02 tSys 0 079 m s2 Braking distance SBr Vmax2 m 2 FNtot aB m Switching times Size Brake switching time Type 3850 1 t50 s 0 035 0 035 0 040 5 0 5 1 5 3 Stopping distance SBr 1 272 0 04 m 2 20 19 Vmax V0 aB tSys m s V...

Страница 17: ...should be stored lying down in dry rooms free of dust and vibrations Relative humidity 50 Temperature without major fluctuations in the range from 0 C to 40 C No direct sunlight or UV light Do not store aggressive corrosive substances solvents acids alkalis salts etc nearby ...

Страница 18: ...ION Nominal holding force can be influenced Turning of the ball clamping screw by the customer can lead to malfunctions Never turn the ball clamping screws Note The brake must not be dismantled Note The function of the stepless holding brake SHB is only guaranteed if the rail surface is properly maintained ATTENTION Never operate the brake without a profile rail Operating the brake without a profi...

Страница 19: ...ed air connection thread The size and speed of the 3 2 way valve 5 influences the switching time Safety related applications Use of a proximity switch for switch condition monitoring see Section 9 1 In addition use a pressure monitor pressure switch 6 between the brake and the quick exhaust valve i i i Recommendation For applications to optimise the switching time reduction of braking path Note Th...

Страница 20: ... screws without torque 8 Screw locking with Loctite 243 9 Depressurise the brake and thus tension it centring 10 Tighten the fastening screws with tightening torque Nm 11 Apply pressure to the brake 12 Depressurise the brake again pressure relief 13 Tighten the fastening screws with tightening torque i CAUTION Observe the dead weight of the brake When lifting dismantling the brake may drop Crushin...

Страница 21: ... ment or adjustment must be possible WARNING Load crash possible Gravity loaded axles must be fixed in place before work commences and therefore se cured against falling Note Switching condition monitoring is set and installed at the factory Technical data PNP closer Rated operating voltage Ue 24 VDC Operating voltage Ue 10 30 VDC Cable length 5000mm Brake open Pressure on Signal OFF Brake closed ...

Страница 22: ...he brake and to avoid a possible load drop in the event of vertical installation Caution During the brake test hazards to persons and machine damage cannot be ruled out due to malfunctions assembly er rors control errors etc Do not enter dan ger area Take any measures necessary to intercept or attenuate the load Check the setup Recommendation Test the brake with the nominal holding force or the ma...

Страница 23: ...approved Action Note Comment Interval Execution Function test Carry out regular function tests see Section 10 3 The profile rail must be checked regularly for soil ing with friction reducing substances and cleaned if necessary see Section 11 4 Special measures are required in the event of heavy dust and dirt accumulation or extreme envi ronmental conditions Please contact Leantechnik AG Check prof...

Страница 24: ...e event that heavy soiling impairs the function of the brake Clean the profile rail using a lint free clean cloth with methylated spirit The rail may be lubricated with oil or common bed track greases i 11 Maintenance Inspection Switching frequency ...

Страница 25: ...stallation process CAUTION Observe the dead weight of the brake When lifting dismantling the brake may drop Crushing and impacts may result WARNING Load crash possible The brake must be unloaded The unloaded condition must be checked before disassembly Secure the danger area Support the load 12 Disassembly ...

Страница 26: ...chnik com 13 Disposal For disposal observe the specific regulations of the respective country of use All steel components Steel scrap key no 160117 Seals O rings V seals elastomers Plastic key no 160119 13 Disposal ...

Страница 27: ... section of lines too small Friction reducing substances on the profile rail Incorrect dimensioning 3 2 way valve too slow Mounting and adjustment of the switching condition monitoring faulty Brake does not ventilate Cable faulty Proximity switch faulty Check the operating pressure and increase if necessary Replace the faulty valve Seal the leak Replace the brake Replace the faulty valve Check the...

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