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IS 7587-8 (1993): Winding in mines - Suspension gear, Part8: Clivey hook suspension arrangements [MED 8: MiningTechniques and Equipment]

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IS 7587 ( Part 8 ) : 1993 #

WINDING IN MINES - SUSPENSION GEAR :d 5 ; PART 8 CLIVEY HOOK SUSPENSION ARRANGEMENTS

.i

UDC 62146.061-l : 622~678.52

@ BIS 1993

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

December 1993 Price Groop 3

Mine Transportation Sectional Committee, HMD 08 * .:.,:_- i . VW

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards on the recommendations of Mine Transportation Sectional Committee and approval of the Heavy Mechanical Engineering Division Council.

The winding operations in mines require suspension arrangements to be used for connecting the w~inding rope with the mode of conveyance of men and materials in mining shafts. Mode of conveyance vary considerably depending on design considerations and applications. Most common mode of conveyance is cage.

The standard on suspension gear for winding in mines [ IS 7587 ] was initially prepared to cover the cage suspension gear only and was excluding safety detaching hooks as it was covered by 1s 3970 : 1967. Subsequently views were expressed to cover all suspewion arrangement under IS 7587 and also to formulate standards on suspension arrangements for skips and shaft sinking operations in mines. Accordingly IS 7587 ( Part 6 ) : 1984 was published and IS 3970 : 1967 was withdrawn. In addition IS 9011 : 1979 Skip suspension gear for winding in mines’ was also published to cover the skip suspension arrangement.

This Indian Standard ( Part 8 ) is being processed to standardize the suspension arrangement for winding in shaft sinking operations in mines. Clivey hook is an important component in such arrangements for connecting sinking bucket [ See IS 12526 : 1988 ‘Bucket for shaft sinking opera- tions in mines’ ] with non-roating winding rope. It is provided with a lock to prevent inadvertant detachment of sinking bucket. This Indian Standard may provide a uniform practice for the manufacture and use .of clivey hooks used during sinking.

For the purpose of deciding whether a particular requirements of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2 : 1960 ‘Rules for rounding off numerical values ( revised)‘. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

Indian Standard

1s 7587 ( Part 8 ) : 1993

WINDING IN MINES - SUSPENSION GEAR PART 8 CLIVEY HOOK SUSPENSION ARRANGEMENTS

1 SCOPE 6 DIMENSIONS

This standard covers general requirements of clivey hook suspension arrangement provided between a rooe cappel and busket in shaft sinking operatibns

2 REFERENCES

IS No. 4454

in mines.

Title

Steel wires for cold formed spring, Part 1 Patented and cold drawn steel wires - unalloyed ( second revision ) Steel wires for cold formed springs, Part 2 oil hardened aild tempered spring steel wire and valve spring wire - unalloyed ( first revision ) Steel wires for cold formed springs, Part 3 oil hardened and tempered steel wires - alloyed ( jirst revision ) Steel wires for cold formed springs, Part 4 Stainless spring steel wire for normal corrosion resistance (first revision )

Cage suspension gear for winding in mines: Part 1 General requirements

(Part 1 ) : 1981

4454 ( Part 2 ) : 1975

4454 ( Part 3 ) : 1975

4454 ( Part 4 ) : 1975

7587 ( Part 1 ) : 1975

3 TYPES

Clivey hooks shall be of two types as follows:

Type A Clivey hook with trapezoidal section Type B Clivey hook with rectangular section

4 MATERIAL

The components of the clivey hook suspension arrangemet except split bearing, pipe cover and spring shall be manufactured from material specified in IS 7587 ( Part 1 ) : 1975. The material used for manufacture of spring shall cor.form to IS 4454 ( in four parts ).

5 SAFE WORKING LOAD The comp0nent.s of the clivey hook suspension arrangement shall be designed for safe working load of 20, 40,60, 80 or 100 kN for clivey hook of Type A and 50 or 80 kN for clivey hook of Type B.

6.1 Dimensions of components for clivey hook suspension arrangement of Type A shall be as given in Fig. 1 and Table 1 to Tab!e 5.

6.2 Dimensions of components for clivey hook suspension arrangement of Type B shall be as given in Fig. 2.

7 DESIGNATION

7.1 A clivey hook suspension ~arrangement of Type A with 80 kN safe working load and conforming to this standard shall be designated as:

Suspension arrangement, Clivey Hook, 80 A IS 7587 ( Part 8 )

7.2 A clivey hook with 50 kN safe working load of Type B conforming to this standard shall be designated as:

Clivey Hook 50 B IS 7587 ( Part 8 )

8 GENERAL REQUIREMENTS

8.1 Clivey hook suspension arrangement shall conform in all respect with the requirements laid down in IS 7587 ( Part 1 ) : 1975. For threaded ~portion of the clivey hook, the factor of safety shall be minimum 15.

8.2 Lock

Clivey hook shall be provided with a suitable lock to prevent inadvertant detachment of bucket.

9 MANUFACTURE

Each component of the clivey hook suspension arrangement shall be manufactured by forging process and shall be free from forging defects.

10 TESTING AND EXAMINATION

10.1 Each component of clivey hook suspension arrangement shall be tested and examined in accordance with requirements of IS 7587 ( Part 1 j : 1975. A proof load of three times safe working load shall be applied during the proof load test.

10.2 A certificate of test as specified in IS 7587 ( Part 1 ) : 1975 shall be supplied with each set of clivey hook suspension arrangement.

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I J’ ; ”

IS 7587 ( Yart 8 ) : 1993

11 MARKING

11.1 Identification and Inspection Marking

Fach component of the clivey hook suspension arrangement shall be suitably marked with

details in accordance with requirement specified in IS 7587 ( Part 1 ) : 1975.

11.2 Certification Marking

Details available with Bureau of Indian Standards.

CHASE BLOCK

UST COLLAR

SPLIT P UST BALL BEARING

-

SAFETY LOCK

FIG. 1 NOMENCLATURE FOR TYPE! A CLWEY HOOK SUSPENSION ARRANGEMENT

‘.

,

:t

IS 7587 ( Part 8 ) : 1993

0 ’ 1537 I --. [3lA 6C

ID LINK

UPPER LINK

PLATE

SWIVEL BLOCK

LINK

.IOPENlNG 62 APPROX I

580

LO

*

cT]blVEY HOOK ~11 dimensions in millimetres.

F1o.2 NOMENCLATURBANB DIMENSIONSFOR TYPB B CLIVEY HOOK SUSPENSION ARRANGEMENT

3

1s 7587 ( Part 8 ) : 1993

Table 1 Dimensions for Clivey Hooks, Type A Suspension

( Clause 6.1 )

All dimensiocs in millimetres.

Arrangement

Safe Working d B C D E d, d, da L, Lz L, Lo L, L, L, La RI Ra Rs & Rs Load kN

20 50 70 30 50 36 25 20 40 440 220 25 75 50 130 90 185 85 35 150 100 12

40 85 95 35 70 36 35 30 50 565 250 35 105 70 142 122 262 128 45 200 150 12

60 105 110 45 90 36 45 40 60 670 290 45 135 80 172 122 288 144 60 200 150 12

80 110 130 50 100 36 50 45 70 75.5 320 50 150 90 183 148 348 174 75 200 150 20

100 110 130 50 110 36 55 50 70 780 320 55 165 90 183 148 348 174 75 220 150 20

4

Table 2 Dimensions of Pins, Type A Suspension Arrangement

( Clause 6.1 ) All dimensions in millimetres.

Safe Working

Load Ll LI Ls D DI Mass

kN kg 20 20 140 25 25 50 1.2

40 28 170 35 35 70 3.2

60 36 205 45 45 90 6.6

80 40 230 50 50 100 9.2

100 44 265 55 55 110 12.4

Table 3 Dimensions of Chase Block, Type A Suspension Arrangement

( Clause 6.1 )

All dimensions in millimetres.

‘1

---------- _----_-

_------_--

+*

Safe Working

Load HI L, t, d, W Ha t, da Mass kN kg 20 80 50 20 25 95 75 85 25 5.5 40 120 70 30 35 105 105 105 35 10.0 60 160 90 40 45 120 120 120 45 16.0

80 200 100 50 50 130 130 130 50 22.0

100 220 110 60 55 150 150 150 55 34.0

IS 7587 ( Part 8 ) : 1993

Table 4 Dimensions of Shackle, Type A Suspension Arrangement

( Clause 6.1 ) All dimensions in millimetres.

+

F

-- * -i- m--JL

A

D&d, ’

-_ .- -_ J -- .- _-- t3

SafeL&;king HS W, ts ds da Mass

kN kg

z: 240 345 1;: 10 25 25 ;I;: 60 440 120 :z :: :z .

1E 480 535 130 150 25 30 50 55 50 55 I:.; 17.8

Table 5 Dimensions of Cross-Piece, Type A Suspension Arrangement

( Clause 6.1 ) All dimensions in millimetres.

” _I._ “, lz?El L

Safe Woiking

Load b d WI d, kN z 1;: 25 62

60 120 ::

1::

120 1::

1:: 130 150 50 55 130 150 115 125

h L Mass kg

45 160

:z 150 180

:.t: .

8.0 100 205 12.0 100 240 16-2

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’ ( Publications ), BIS.

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