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है”ह”ह
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
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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3970 : 1967 was withdrawn.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.
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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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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
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SAFETY LOCK
FIG. 1 NOMENCLATURE FOR TYPE! A CLWEY HOOK SUSPENSION
ARRANGEMENT
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,
: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
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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
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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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