ABB DODGE PARA-FLEX Руководство - Страница 2

Просмотреть онлайн или скачать pdf Руководство для Промышленное оборудование ABB DODGE PARA-FLEX. ABB DODGE PARA-FLEX 4 страницы. Couplings includes atex approved couplings

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PX50-120 TL

PXFBS

Figure 2 - Three-Piece Flange Styles

Figure 3

NOTE: Many sizes of PARA-FLEX elements are supplied with a

cardboard gauge to facilitate accurate flange spacing before

installing the rubber tire element. This gauge comes in the

box with the element. Gauges not supplied for PX40 and PX140

through PX320. Gauges should not be used for alignment

purposes.

FLEXIBLE ELEMENT INSTALLATION

Clean flange mounting area as well as surface that will

come in contact with the element with a solvent, such as

Xylene (Xylol), to remove grease, oil, wax, and dirt from

surfaces. Do not clean the element with the solvent. A

diluted soapy water solution may be applied to aid with

element installation.

Wrap flexible element around flanges as shown in Figure 5.

Make sure beads of element are fully worked down upon

the seats. To ensure proper seating, tap around the tire's

outside diameter with a small mallet until split is closed.

Make sure element is evenly centered on the flanges.

Hold split of flexible element closed as shown in Figure

6. Tighten (finger tight) one or two screws 180° from split.

Using both hands, knead the tire pulling it toward the split.

Hold split closed and tighten (finger tight) the next two

screws farthest from the split. Repeat the procedure on

all remaining clamp ring screws. Use a torque wrench to

tighten each clamp ring screw in succession to the torque

specified in Table 1. Using a torque wrench, recheck all

clamp ring screw torque values before coupling operation.

Optional Procedure: Hold split of flexible element closed as

shown in Figure 6. Tighten (finger tight) one or two screws

180° from split. Using both hands, knead the tire pulling it

toward the split. Hold split closed and tighten (finger tight)

the next two screws in a star or cross pattern as shown in

Figure 7. Repeat the procedure on all remaining clamp ring

screws. Use a torque wrench to tighten each screw to the

torque specified in Table 1. Using a torque wrench, re-

check all clamp ring screw torque values before coupling

operation.

Install coupling guards per OSHA or applicable

requirements. Guarding should be designed so that

coupling tyre will be contained within the guard in the

event that the coupling tyre is thrown from the coupling

assembly.

Figure 5

External

Flange

Internal

Flex

PXBBS

PXTBS

Figure 4

Figure 6

Figure 7

FLEXIBLE ELEMENT REPLACEMENT

Loosen all clamp ring screws. Grasp one end of flexible element

at the split and peel off the flanges. Clean clamping parts with a

solvent, such as Xylene (Xylol), to remove grease, oil, wax, and

dirt from surfaces. Do not clean element with solvent. Check

to see that only one or two threads of each clamp ring screw

are engaged. Re-align flanges and install new flexible element

according to the sections on flange installation and flexible

element installation. When replacing clamp ring screws and

washers, use only SAE Grade 8 or ISO Class 10.9 screws and

hardened washers.

WARNING: The metal components of the coupling that clamp

the flexible element will operate properly only if the screws are

tightened properly. Tightening one screw to full torque before

proceeding to the next screw may cause excessive clamp ring or

flange deflection. To prevent clamp ring and flange deflection, the

screws must be evenly and gradually tightened to full torque.

FLOATING SHAFT COUPLING INSTALLATION

BPS

Flange

Piloted Internal

Clamp Ring

Assembly

Figure 8 - Floating Shaft Coupling

Disassemble the clamp rings from the flanges. Place the

external clamp rings on the shafts with the grooved side

facing the shaft end.

Check the axial float of the shafts. Position the shafts at the

mid-point of the float. Where Limited End Float is required

or Sleeve Bearings are used, consult Mechanical Power

Transmission Support for application assistance.

Referring to Figure 8 and Table 1, observe the "B"

dimension for the coupling size being installed. Mount and

position the flanges on the shafts so that dimension "B" is

achieved when the shafts are in their final position. Where

flanges contain set screws, tighten to values listed in Table

Remove any anti-rust lubricants or oil from the grooved

side of the clamp rings. Assemble internal and external

clamp rings to floating shaft flanges and snug up clamp

ring screws. Slip internal piloted clamp rings onto the

turned down portion of floating shaft. Hub projection on

clamp ring should be toward floating shaft as shown in

Figure 8.

Position and support floating shaft assembly between

driving and driven flanges. Make sure clamp ring pilot is

seated in flange counterbore. Assemble external clamp

rings to flange with screws. Tighten screws sufficiently to

prevent movement between the parts.

Align flanges using precision equipment such as dial

indicators or laser equipment. If precision equipment

is not available, scales, straight edges, and calipers

can be used as less accurate means of alignment. If

using a scale or calipers, refer to Figure 3 and check the

angular misalignment by measuring dimension "B" at

four places 90° apart. Adjust the equipment until the four

measurements do not vary more than value "C" in Table

1. Repeat the procedure at both ends of the coupling. To

achieve maximum coupling performance, align the coupling

as accurately as possible during initial installation.

Loosen clamp ring screws and proceed to Section II for

element installation.

FLG. to FLG. Distance

F/S FLG. to FLG. Distance

BCS

Flange

BBPS x BBPS

BBPS x TBPS

TBPS x TBPS

External

Clamp Ring

Floating

Shaft Bearing

Assembly

Flexible

Element