2.300M系列鋼廠級鼓式剎車300M Mill Duty Brakes                                          下載down load

     2-3.說明INTRODUCTION
     2-4.訂購資料 ORDERING INFORMATION
     2-5.訂購資料 ORDERING INFORMATION
     2-6.MBE 型直流磁鐵操作剎車
　　    TYPE MBE DC MAGNET OPERATED BRAKES
     2-9.MBT 3相AC油壓致動剎車
          TYPE MBT 3-PHASE AC HY-THRUST OPERATED BRAKES
     2-10.MBT和MBTE 3相AC油壓致動剎車
　       TYPE MBT & MBTE 3-PHASE AC HY-THRUST OPERATED BRAKES
　  2-11.MBT和MBTE尺寸和額定能力 MBT & MBTE DIMENSIONS AND RATING
     2-12.BM型.油壓(踏板式)剎車Type BM HYDRAULIC (PEDAL) OPERATED BRAKES
     2-13.BM型油壓(踏板式)剎車選用和使用 Type BM Selection and Application
     2-14.BEM型DC電磁-油壓鼓式剎車
　         Type BEM DC MAGNETIC-HYDRAULIC OPERATED SHOE BRAKES
     2-15.BEM型DC電磁-油壓鼓式剎車
　         Type BEM DC MAGNETIC-HYDRAULIC OPERATED SHOE BRAKES
      2-16.BEM型DC電磁-油壓鼓式剎車尺寸表和額定能力
　          The Dimensions and Rating of Type BEM SHOE BRAKES
      2-17.BTM和BTME油壓-3相AC油壓致動剎車
             MTM & BTME HYDRAULIC-3PHASE AC HY-THRUST OPERATED BRAKES
      2-18.BTM和BTME油壓-3相AC油壓致動剎車
             MTM & BTME HYDRAULIC-3PHASE AC HY-THRUST OPERATED BRAKES
      2-19.BTM和BTME油壓致動剎車尺寸表和額定能力
              DIMENSIONS & RATING FOR TYPE MTM & BTME AC HY-THRUST BRAKES
      2-20.手動油壓剎車系統-BM , BEM , BTM,BTME 型
             MANUAL HYDRAULIC BRAKE SYSTEM-TYPE BM , BEM , BTM & MTME BRAKES
      2-21.手動油壓剎車系統 MANUAL HYDRAULIC BRAKE SYSTEM    
      2-22.剎車鼓-ABW型BRAKE WHEELS-TYPE ABW
      2-23.聯軸器BRAKE WHEELS COUPLINGS
      2-24.聯軸器尺寸表, DIMENSIONS Of BRAKE WHEELS COUPLINGS
      2-25.DC電磁剎車整流器和控制器-BE和BEM型
             DC MAGNET BRAKE RECTIFIERS/CONTROLLERS
      2-26.剎車蓋和保護箱BRAKES COVERS/ENCLOSURES

The BT (and BT

) type. 3-phase AC shoe brakes are spring applied­

electricalIy released by a ∞mpletely sealed，∞ntinuously rated，Hy-

Thrust Actuato﹒The brakes are designed to meet the latest AISE-

NEMAspecifi臼 lions for mil，l c也ne and other heavy duty applicatons. These brakes are designed with a minimum number of parts to provide

a long service life th reduced maintenance and downtime

This versatile brake， with its many standard and optional features，can

be applied to a wide range of applications and environmentalconditions， where smooth，responsive stopping and holding is required.The cushioned brake action produ臼 s signifi臼 ntly less mechanil oscillations as compared 10 the DC Armature or the AC Solenoid type

brakes. The lalter are expensive to maintain in terms of spare parts placement and downtime. The inherent cushioning effect makes the brake ideal for high duty cyde or jogging applications， viually eliminating the mechanicalshock loading which  n lead to increased

∞mponent wear and or ∞mponent failures

Sinthe growth in popularity of AC ∞ntrolled cranes，this brake has rapidly become the standa for all crane moons.It has the same high reliability normally associated with DC dapper ，but does not require an expensive transformer/rectifier to supply the DC power and improve the brake response times.

• CONSTRUCTION 
• The brake base，shoe holders and the shoes are manufactured from ductile iron.
• Fabricated steel linkages

﹒The actuators are manufactured of a cast aluminum alloy; include

double shaft seals，gasketed joints and terminal box，making the units waterproof and dustpof 。

• AII brake hardware is corrosion resistant.
• Composite bushings utilized in all main pivot points

﹒The“floatipg-linkages" provide positive braking action with equal lining wea'r.

• Molded brake linings are non-asbestos and provide a constant coefficient of friction at normal operating temperatures.Shoe linings are bonded to the shoes delivering twice the life over riveted or bolted liners.

.S TANDARDFEATURES  

• Internal torque springs 一Type BT
• Main pivot points are fitted with anti-friction composite bushings.
• Replaceable，waterproof Hy-Thrust Actuator
• Environmentally-safe molded non-asbestos brake linings provide a constant coefficient of friction over the normal operating temperature range.Easily replaceable brake shoes from either side of brake
• Brake shoes are self-aligning.Convenient manual adjustment for torque and lining wear
• Manual release lever Floor mounting

• OPTIONAL FEATURES 選用特性
• Extema torque springs -'TypeB'TE

﹒Time delays on brake setting(“S") and release 

• Self adjustment for lining wear Hydraulic，pedal operated manual over-ride systems

TORQUE ADJUSTMENT OPTIONS 扭力調盜-選用

The standard Type "BT" (Internal torque spring):

• Torque spring compression rating is fixed within the thruster.
• Pre-set torque setting provided by pull rod pivot pin locations (3).
• Torque may be reduced to 60% of maximum rating.

The optional Type "BTE" (External torque spring):

• Provides stepless torque adjustment
• Torque adjustment made by rotating the nut atop the sp討ng tube assembly
• Torque may be reduced to 40% of maximum rating.
• The actual setting can be read on the calibrated torque

indicator (C.T.I.) located in the side of the spring tube assembly.

• RESPONSE TIME 反應時間

When used on crane bridge motions， it is acceptable to connect the Hy-Thrust actuator directly across the bridge motor terminals.For crane hoist applications，we recommend the Hy-Thrust

Actuator is connected directly to the AC supply and switched by a suitable 3-phase contactor. To reduce the response time an additional 15%， motor capacitors must be connected in parallel

with the motor windings， and the actuator must be switched

through a contactor. A typical application for this arrangement would be container cranes or similar applications

SELF-ADJUSTING   自譏諷盤

Both the“ BT" and the "BTE" type actuator brakes  n beed

with an optional device which automatically compensates for lining wear throughout the full thickness life of the linings. The self-adjusting feature consists of a one-way operating clutch， mounted on a special pull-rod， which replaces the standard pull­

rod assembly. As the brake linings wea，r  the actuator stroke increases. This increased movement will cause a small arm mounted on the brake linkages to rotate the clutch/pull-rod assembly a few degrees. This rotation draws the brake arms

slightly closer together， compensating for the wear in the brake shoe linings.'The optionalsef-adjusting feature eiminates the time requried 10 manualy adjuslIhe inkages for brake shoe lining

wear. It does not reduoe or eliminate  the planned maintenance inspections as recommended in the Operation and Maintenance manual provided with the brake.