中英文中英文文献翻译-MDL-50A型锚固钻机使用说明书

2021年1月25日发(作者：since)

MDL-50A Drilling Rig Operation
China is the world's first national machinery development. Chinese mechanical engineering technology
not only has a long history and splendid achievements in Chinese is not only the material culture and social
economic development plays an important role in the world, and has made great contribution to promote the
progress of technology civilization . Machine in the traditional
，
our

country within a long period are leading
in the word. In modern times, especially from the early 18th century, to the 19century40s, due to the economic
and social and many other reasons, the

machinery industry of Chinese was stagnation, but

the 100 years is
western
bourgeois
political
revolution
and
industrial
revolution
time,
mechanical
science
and
technology
is
developing
rapidly,
and
far
more
than
the
level
of
China.
So,
China
mechanical
development
level
and
the
western gap widens, to the 19th century middle
，

our country already behind western more than one hundred
years.


Over the past 40 years, roof bolter of China are developing from nothing, in some places roof bolter
were
also
called
anchor
rig,
the
varieties
from
the
original
single
to
variety,
from
single
power
to
multiple
power. Our country successively has developed a mechanical support leg type electric roof bolter, drill roof
bolter, supporting leg and the guide rail type hydraulic pressure roof bolter, supporting leg type pneumatic roof
bolter,
non-mechanical
transmission
support
leg
electric
roof
bolter,

airborne
roof
bolter
and
double-stage
Air-leg drill etc.. According to the main power source, roof bolter has two kinds - Pneumatic and hydraulic.
But electro-hydraulic combination will be the trend of its development.

Over the past 40 years, roof bolter of China are developing from nothing, in some places roof bolter were
also called anchor rig, the varieties from the original single to variety, from single power to multiple power.
Our country successively has developed a mechanical support leg type electric
roof bolter, drill roof bolter,
supporting leg and the guide rail type hydraulic pressure roof bolter, supporting leg type pneumatic roof bolter,
non-mechanical transmission support leg electric roof bolter,

airborne roof bolter and double-stage Air-leg
drill etc.. According to the main power source, roof bolter has two kinds - Pneumatic and hydraulic.

Hydraulic roof bolter is mainly component of the medium of hydraulic oil and the drive actuator witch
is including cylinder and motor. Pointing from the walking in the domestic the hydraulic roof bolter mainly
has two kinds
–
skid and crawler. Structure of skid hydraulic Roof bolter is simple, but the strength is higher,
operation
is
simple,
manufacturing
cost
is
relatively
low.
Such
as
Wuxi
dual-fan
production
of
YG-80,
Chengdu Hamma production of YXZ-70, Chongqing prospecting plant production of MGJ-
50 etc… Holing
main technology is double eccentric, commonly used in drill pipe isΦ73, Φ89, acco
rding to different design
of jacket tube drill pipe commonly useΦ108, Φ127, Φ146 etc specifications. They need to be equipped with
proper air compressor to driven impact power, because the bottom of impact always role in the hole, so often
be called as
construction process. But they are moving heavy, function single, and increased with the processing costs,
much
higher
and
higher
buildings,
this
kind
of
type
has
been
unable
to
meet
the
needs
of
the
market.
So
anchor bolt drill and tracked automatically walking got quickly development. In the domestic there are many
types of the crawler roof bolter, which features in the main power head adopts the high torque motor drive,
speed range usually is variable speed. They are greatly improving the rig performance. The track is driven by


a hydraulic motor, which made the drilling machine more flexibility and reduces the complex of the artificial
joint. This type of drill also adopted the
Xuanhua
Ingersoll-Rand production
of
CM-351.
This
type
of
drill
same
with
the
slide
drill
on
the pulling
sleeve
also
need
be
equipped
with
auxiliary
equipment
and
other
auxiliary
equipment.
In
China
there
is a
kind of double anchor rig power head roof bolter, characteristic of this kind of drill rig is drill pipe and casing
are
driven
rotation
by
each
power
head,
and
do
not
influence
each
other,
pull
casing
can
be
done
automatically by the machine.
Every rig all have they own operation manual. The follow is MDL-50A Drilling Rig operation manual.


1. Preface
The
company
has
adopted
its
latest
assembling
technology
for
all
main
parts
and
components
of
this
product. And the rig is completed with chassis for pretrial and pipe wrench and other accessories, which the
re-designed
fully
new
hydraulic
system
incorporates
into
one
entity.
Key
elements
are
all
renowned
brands
either local or imported, and are fully hydraulically controlled and displayed through instruments. The drilling
rig is easy and flexible of operation and has high working efficiency and so well meets the requirements by the
customer.
MDL-50A
Drilling
Rig
is
a
new
type
fully
hydraulic
long-stroke
anchored
drilling-rig
for
engineering
purposes developed and manufactured by Jiangsu Wuxi Mineral Exploration Machinery General Factory Co.
LTD (formerly Jiangsu Wuxi Mineral Exploration Machinery General Factory).

MDL-50A Drilling Rig is a hydraulically controlled, anchored power head engineering drill. Its overall
weight is under 4000kg, is mainly for the anchoring engineering of coast and dangerous rock/cliff mass for
geological disaster prevention activity, and the anchoring engineering of rock body etc to control displacement
of buildings, and also for supporting of deep-foundation pit and groundwork reinforcing engineering in urban
construction site, for blowing up engineering or blowing up hole etc. But the Drilling Rig isn’t suitable for
anchoring engineering of high- edge slope or dangerous rock body.

MDL-50A
Drilling
Rig
possesses
the
characteristics
of
stable
performance,
high
working
efficiency,
multiply
usage,
as
well
as
the
capability
of
drilling
sophisticated
stratum
and
handling
accidents
etc.
This
drilling rig, deployed by common alloy drill tools or other drill tools, can perform revolving- and-drilling. In
the
rigid
rock
stratum,
the
drilling
rig
deploys
the
spheroid
drill
bit
to
perform
striking
and
revolving
and
drilling to have high- speed-bored hole; if deployed with air-compressor and pneumatic in-the-hole hammer,
and accepted the cannula-followed drill tools, the drilling rig can drill the hole with cannula together in those
unstable stratum such as conglomerate stratum.
Following are the main features of the drilling rig:
1
）

Compact in structure, fully hydraulically controlled, easy and flexible of operation and easy to move,
good mobility, time- saving and energy-saving.
2
）

Fitted with exclusive drilling follow-up devices (drill rod, thimble, and eccentric drill bit etc). When
drilling in unstable stratum thimble can be used at collaring and the hole can be finished with conventional ball
teeth bit to achieve good drilling efficiency and good quality holes.


3
）

Optimized heat diffusion system in the lig
ht of customer’s plant conditions to ensure that the max
temperature in the hydraulic system does not exceed 70
℃
when outdoors temperature reaches 50
℃
.
4
）

Power
head
of
the
drilling
rig
has
big
torque
and
long
stroke
with
high
drilling
efficiency,
which
greatly enhances working efficiency. Fitted with devices for mechanically mounting/dismounting drilling rod
to reduce the operators’ labor intensity.


2. Technical Specification
Main drilling mode of this product is: conventional drilling, alloy bit drilling, and spiral drilling
1) Hole dia.
（
mm
）
：
φ85
-
φ160

2) Hole depth
（
m
）
：
40-60
4) Boring angle
（
°
）
：

-15-90
5) Rated speed
（
r/min
）：
12
、
25
、
45
、
60
、
90
、
125
6) Rated lift capacity
（
kN
）
：
42.5kN
7) Rated pull down capacity
（
kN
）
：
25kN
8) Feed stroke
（
mm
）
：
1800
9) Dynamic
：
Motor
，
18.5kw+11kw+1.5kw
10) Weight
（
kg
）
：
4000
11) Shape (L×
W×
H
，
mm)
：
4200×
2000×
7200
12) Plumb condition
：
3800×
1800×
3600
13) Transport state
：
3800×
1800×
2000
3. Structure of the Drilling Rig
MDL-50A drilling rig comprises of the following main components:
（
1
）
The power assembly
The
power
module
is
made
up
of
three
electric
motors
which
respectively
drive
three
sets
of
pumps.
Among them, one group is a double gear pump. The big one is responsible for drilling quickly of the drill; and
the
small
one
is
responsible
for
the
movement
and
the
support
of
one
side
of
crutch
as
well
as
the
medium-speed,
low-speed
drilling.
One
set
of
pump
is
responsible
for
the
movement
and
the
support
of
another side of crutch and the medium-speed drilling as well as the quickly lift of the power head. The last set
of
pump
is
responsible
for
the
rise
of
the
tower.
When
you
start
operating
the
drill,
you
should
notice
the
rotated direction of three electric motors, its turning should be identical with the red arrow on the pump or the
back shell of the motors, or the drill can't work normally.
（
2
）
The power head assembly
Power
head
of
MDL-50A
type
drilling
rig
is
driven
by
Double
hydraulic
motor
through
gear
box
transmission and speed regulating, and it drives the main shaft and fore end drilling rod connection to turn in
positive/reverse directions, thereby driving the drilling bits below.
In the power head box is stored gear oil. When in operation be sure to check the oil level from time to
time to see there is sufficient oil. On the side of the box is fitted an oil level threaded plug. Just by raising the
mast to vertical position and loosening the oil level screw you can check the oil level.
The up/down motion of the power head is effected by the roller assembly beneath it, which is driven by


the
chains. After
the drilling
rig
has
worked
for a
period
of
time
there
will
be
a
certain
amount
of
rocking
motion because the roller assembly will have worn. Now is the time to loosen the locking nut and turn the
fixing
screw
of
the
roller
assembly
to
adjust
the
sliding
clearance
between
the
bottom
and
the
side,
then
re-tighten the nut. Only be sure you do not tighten the wear- resistant plate excessively.
（
3
）
The propelling rack assembly
This assembly is part of the orifice-supporting device, power head assembly and pressurizing elevation
assembly.
（
4
）
The pretrial chassis
With
the
pretrial
fitted
on
it
is
possible
to
effect
the
drilling
rig’s
forward/
backwa
rd
movement
and
turning and leveling through controlling the proportional pump. and that is why the drilling rig can move easily,
has good mobility and is time- saving and energy- saving.
（
5
）
The hydraulic system
Working
oil
pumps,
valves,
execution
elements
and
pipe-
fittings
of
the
hydraulic
system
of
MDL-50
drilling rig are mostly imported fine quality parts, ensuring a good working performance.
（
6
）
The electrical system
As the drilling rig is not equipped with power generator an external three-phase AC power supply has to
be connected to the control cabinet. The motor is started in the planetary triangle mode for the sake of reducing
starting
current.
Total
input
power
of
the
electrical
cabinet
is
45
kW.
The
cabinet
is
fitted
with
leakage
protection switch as safety device, which also serves as excessive voltage protection for the hydraulic system
and for various kinds of warning signals for user to be aware of the rig’s instant status. Before starting be sure
to check the cabinet’s earth connection to see
it is securely done.

Unqualified personnel are not allowed to do any checkup or maintenance, failing that the person will have
to bear the consequences.
4. Operation
Points for attention in the preparation before starting the rig
1.1 The drill should be installed on the flat ground.
1.2 Be sure to tighten all the connections. In case of any loosening be sure to tighten up and make proper
adjustments.
1.3
Checking
each
part
if
it
get
stuck
or
not,
checking
each
shield
and
oil
pipe
whether
it
is
installed
correctly.
1.4 Checking whether the joy stick is on the close position, make sure it is not on working to prevent any
accident.
1.5 Checking whether each connection of vitta is fast, if it is loose, adjusting it.
1.6 Checking the oil if it is enough to achieve the settled level, and making sure that inlet valve and outlet
valve is on.
1.7
Clean
up
the
surfaces
of
all
parts
and
components
of
the
rig.
Apply
lubricants
(oil/grease)
to
all
lubrication nozzles and sliding parts.

1.8 While using the electromotor, paying attention to its turning, its turning should be identical with the


escutcheon, and reversion is forbidden.
1.9
Make
sure
that
there
is
enough
oil
in
the
oil
box.
There
is
a
liquid
temperature
meter
and
liquid
position meter on the side of oil box. The choice of liquid presses oil: When environment temperature is-10 ~
40
℃
, you can use L- HM 46(GB 11118.1- 1994) or YB-N 46(GB2512-81); When environment temperature is
–
40~ -10
℃
, you can change it to use L-HV 46( GB11118.1-1994) or the other low temperature liquid press the
oil. If drill lasts working several days, oil box should be cleaned every month and remove from impurity. The
filter in the absorb mouth of the oil pump should be replaced and cleaned each half month.
1.10 Checking whether the oil of the drill is leak or not. And before it is clear, don't drive drill.

1.11 In the cold condition, pump should be open and close by spells for some times. In the heat condition,
there should be a shield on top of oil box. (You should settle it by yourself.)
1.12
If
drill
doesn't
work
for
a
long
time,
oil
pump
should
work
without
loading
for
10
minutes
after
driving drill. In the moment, the handle is on the middle position, then checking whether the handle is identical
to the escutcheon.
1.13 It is forbidden that two joysticks are opposite when power head is rotating after the drill drove.
1.14 Erect the propelling rack assembly. Then fix the longer supporting rod of the supporting assembly
together with the supporting base of the propelling rack.
1.15 Try start the drill and checking if the fast add press is in gear. Since the parameter in the escutcheon
is confirmed by hydraulic press element in normal condition and also the efficiency of the system is unsure. So
the error between the real and the grade parameter in 15% is in gear when the drill is in trial run.
1.16 The drilling Rig can on working after the above movement is in gear.
Points for attention when operating the drilling rig
2.1
Before
leaving
factory
the
drilling
rig
has
had
its
hydraulic
system
pressure
adjusted.
So
do
not
change it without approval of the manufacturer. For the sake of safety and prevention of accidents be sure to
use your greatest discretion when using excessive system pressure.

2.2 After the propelling rack is erected the ideal thing to do is to remove the rig erecting operation handle
in order to prevent mistaken operation.
2.3
Before
starting
drilling,
check
the
cylinders
of
the
rig’s
supporting
legs
to
see
they
are
properly
supported.
2.4 While drilling is going on it is not
allowed to pull the handle of the supporting leg’s oil cylinders in
order to prevent any accidental change to the angle of drilling.
2.5 When power head is close to either extreme position near the end it is not allowed to have any quick
motion. Any great impact is to be avoided.
2.6 The drilling rig is fitted with protection against overload pressure and with overload warning. When
hydraulic system is overloaded the rig will automatically cut off power to motor and issue warning. Now you
will have to find out the cause of overload and remove it before starting the drilling rig again.
Warning
：

1
）
The
power
head
function
of
quick
feed-in
and
elevation
can
only
be
used
when
operating
and
coordinating have become really skilled; otherwise accident may happen.


2
）
When
operating
simultaneously
the
power
head
feed-in
and
elevation
handles,
there
must
not
be
simultaneous working in opposite directions, which may cause damage to the system
5. Normal Failure & Its Shooting Method
1
）
Normal faults and remedies of the hydraulic pump
Phenomenon
Analysis
1. The electromotor turnaround worry
No oil, The
oil measure is
Insufficient,
not enough
2. Suction pipe or filter blocked
3. Too large clearance between shafts or
radials
Remedy
1. Check the electromotor turnaround
2. Dredge pipe, clean filter, replace oil
3. Check and replace relevant parts
4.
Screw
down
bolts
on
joints
，
remove
the
leakage, prevent air into
the pressure is
e in joints, air interfused
5. High viscosity of the hydraulic oil or
5.
Select
the correct
hydraulic
oil
，
and
control
too high oil temperature of hydraulic oil
oil temperature
1. Suction pipe or filter blocked, or too
Clean
filter
for
the
suction
pipe
smooth
，



small with filter content
select the correct filter
Add oil in the conjunction part or seal place, if
2.
The
seal
of
suction
pipe blow
by
or
there is air bubble in the oil
the
noise
let
up,
can
screw
down
conjunction
part
or
replace
to
seal
ring;
Return pipe
nozzle
should
be
below
the
oil,
and
have
the
certain
distance with suction pipe.
3.
Pump
and
the
joint
cardo
is
not
concentric
4. Insufficient oil
5. High viscosity of the hydraulic oil or
low oil temperature of hydraulic oil
6. Pump bearings mangle
Adjust concentric
Add oil
Heat oil to the appropriate temperature
Check
the
temperature
of
pump
bearings(Use
hands to feel that)
The noise is
serious, the
pressure wave

is severe

2
）
Normal faults and remedies of hydraulic cylinders
Phenomenon
Analysis
Remedy
1.
Increase
vent-pipes;
If
there
is
no
exhaust,
Crawl
Air incursion
can run the hydraulic system
with
the longest
journey to make the work parts fast run, force
releasing air.


2.
Adjust
the
seal
ring,
make
it
not
loose
and
The seal ring of hydraulic cylinders end
not tight, and the piston pole can be ensured to
cover press too tight or too loose.
placidly
draw
it
by
hand
but
no
leakage( Mostly admit to leak tiny oil)
The
piston
pole
and
the
piston
have
not
3.
Correct
concentricity
between
the
piston
concentric
The span or part of piston pole bend
pole and the piston
4. Alignment the piston pole
The
installation
position
of
hydraulic
5.
Check
and
correct
the
parallel
between
the
cylinders move
hydraulic cylinder and the lead rail

The
linearity
of
the
hydraulic
cylinder
6. Renovate the hydraulic cylinder with milling
inner hole is bad( The drum taper etc.)
and boring, and match piston again.
7. Canker the cylinder ,or wear away the
7.
It
removes
rust
and
burr
that
it
is
slight,
it
cylinder wall
must bore and mill that it is serious.
8. Both sides screw caps of double piston
8.
The
screw
caps
should
not
be
tweaked
too
poles are tweaked too tight, and make its
tight, can tweak them with hand generally, then
concentricity be bad
keep the piston to be placed in nature.
Too large clearance between pistons and
The
clearance
between
pistons
and
hydraulic
hydraulic
cylinders
that
used
clearance
cylinders
should
be
matched
with
the
Impingement
seal,
the
throttle
lose
the
effect
of
provision,
throttle.
and
reduce
the
leakage
phenomenon.
The
cushion
check
valve
of
the
end
is
Revise
and
match
the
check
valve
with
the
failure, and

can

not react the cushion.
valve holder
Too
large
the
coordination
clearance
between
the
hydraulic
cylinder
and
the
1. Match the clearance between the piston and
piston or O seal ring damage, and result
the
hydraulic
cylinder
or
replace
the
O
seal
the
high
and
low-pressure
cavity
to
ring
he thrust lack
or the work
speed
gradually
descend even
to stop
connect with each other
Because
a
certain
section
of
the
work
journey was used usually on the working
hours,
and
result
in
the
linearity
of
the
hydraulic
cylinder
hole
bad(
Have
the
drum
form
part),
to
make
the
high
and
low-pressure oil of the hydraulic cylinder
connect each other.
The oil seal of the cylinder end press too
tight
or
piston
pole
bend,
make
the
friction or resistance increase.

2.
Mill
and
bore
the
hydraulic
cylinder
hole,
and match piston again.
3. Relax the oil seal, and align the piston pole
to unleak oil.

Leak too mach

5.
The
oil
temperature
is
too
high,
and
the
viscosity
of
oil
reduce,
the
stroke
speed
of
the
hydraulic
cylinder
that
the
clearance
airproof
with
the
seal
or
the
seal
quality
is
bad
become
slow.
If
the
high
and
low-pressure
oil
cavity
of
the
hydraulic
cylinder
sides
connect
with
each other, the circulate speed gradually
descend even to stop.

3
）
Analysis faults and remedies of the overflow valve
Phenomenon
Analysis
1. The spring is bended or too soft
4.
Look
for
the
leakage
part,
and
fix
each
junction surface
5. The fever reason should be analysed, and try
to heat of emission and reduce the temperature,
if the seal clearance is too big, then match the
piston or increase the seal ring.
Remedy
1. Replace the spring
2. If the cone valve is new ,namely unload the
2.
Bad
contact
between
the
cone
valve
adjustment
screw
caps
to
push
the
leader
and the valve holder
Pressure
motion
several
times,
make
its
contact
good;
Or
replace the cone valve
3. Steel balls and the valve holder match
badly
4.
The
slide
valve
transforms
or
wears
away
3. Check the roundness of steel balls, replace
steel balls, and abrade polish the valve holder
4. Replace or abrade polish the slide valve
5.
The
oil
is
not
clean,
and
the
damper
5. Dredge the damper, and replace the cleanly
blocks up

The
spring
is
broken
or
missed
out
the
installation
Adjustment

is out of
function
The damper blocks up
The slide valve lock
The
oil
inlet
and
the
oil
outlet
install
in
reverse
The
cone
valve
is
missed
out
the
installation
oil
Check, replace and renew the spring
Dredge the damper
Dismantle, check, renovate it
Check the direction of oil
Check and renew it
The
contact
between
the
cone
valve
or
When the cone valve or steel balls wear away,
Leakage
serious
steel balls and valve holder is bad
should replace the new
Too
large
cooperate
clearance
between
Check
the
clearance
between
the
valve
core
the slide valve and the valve body
and the valve body


The sleeve should not be screwed down
Seal damage
Screw caps slop
The spring transforms, and not restores
Screw down the connect bolt
Check and replace the seal
1. Screw down the screw caps
2. Check and replace the spring
Too
tight
cooperate
between
the
slide
3. Abrade polish the slide valve, and make it
valve
The action of main slide valve is bad
Noise and
vibration
The cone valve damage
There is air in the outlet oil pipeline
The flux exceeds the admission worth
agility
4.
Check
the
concentricity
between
the
slide
valve and the cabinet
5. Replace the cone valve

6. Vent air
7.
Replace
the
valve
that
it
is
suit
the
corresponding flux

8.
Slightly
settle
the
rated
pressure
worth
of
Produce resonance with other valves
the
valve(
If
the
difference
of
the
rated
pressure worth is less than 0.5 Mpa, it easily
take place resonance

4
）
Analysis faults and remedies of over-high oil temperature
Phenomenon
When
the
system
do
not
need
the
pressure
oil,
but
the
oil
still
under
the
enactment
pressure
return
to
fuel tank
The
choice
of
1. Valve specification is too small, the
energy loses is too big
1. Selects according to the work pressure of
the
system
and
maximum
flux
through
the
valve
2. Choose the pump reasonably
The
loop
of
unload
charge
cannot
work well
Check
whether
electricity
loop,
electromagnetism
valve,
lead
loop
and
unload charge valve can work normally
Analysis
Remedy
hydraulic
pressure's
module
specification
unreasonable
is
2.
While
choosing
the
pump,
the
discharge of the pump is over flow
1. The supply of cooling water or the
Cooling shortage
fan is out of order
Elimination malfunction
2. Precipitate in the cooling water pipe
Eliminate precipitate
Shortage
emitting heat

of
The
shortage
of
fuel
tank’s
emitting
Refit
cooling
system
or
enlarge
fuel
tank's
heat area

capacities and emitting heat area

The
pressure
over hot
Oil
quick
hydraulic
pump
1.
The
wear
and
tear
results
in
the
power loses
Repair and instead
2.
Work
with
the
fuel
of
which
the
2. Choose the oil that fits in this system for
viscosity is over low or high
fueling
liquid
the
circulation
is
too
The liquid level of fuel tank is too low
Fuel the oil to the recommended position

The inside diameter of the pipe do not
The
resistance
of
conform
with
the
needed
flux
or
the
Install the pipe and valve of suitable size, or


the oil over mighty
inside diameter of the valve is not big
low the power
enough
6. A sum-up of main externally purchased items
1
）
List of main seal
NO.
1





2



3
4
5
6

2
）
List of bearing

NO.
1
Code
GB/T283-1994
Description
Cylindrical roller
bearing
2
GB/T297-1994
Tapered roller
bearing
32024
2
Specifications
NU1028
Qua.
2
Used in power
head assembly
Remarks
Code
GB/1235-87





JB/T981-1977



TC593
TC576C
TC549A
HG4-337-66
Description
O-ring





Combination oil
seal



Oil seal
Oil seal
Oil seal
V-ring
Specifications
11*1.9
16*2.4
20*2.4
24*2.4
40*3.1
45*3.1
14
18
22
33
170*200*15
130*160*15
95*120*12
B65×
90
1
1
2
4
Used in power
head
Quantity







Used in
hydraulic system
Remarks