HYDRA-PNEUMATIC

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HYDRA-PNEUMATIC HAMMERS
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Hydra-Pneumatic Hammer
Presentation Sections

• 1 Basic working principles of the
  Hydra-Pneumatic Hammer
• 2 Technical Characteristics of the
  Hydra-Pneumatic Hammer
• 3 Hammer construction
• Process of the Conversion from an Air Hammer into
  a Hydra-Pneumatic Hammer
• 5 Safety Protection Measures

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Hydra-Pneumatic Hammer
1 Basic working principle of Hydra-Pneumatic
hammer The basic working principle of
Hydra-Pneumatic hammer is energy conversion from
pressurized liquid into compressed gas and from
potential energy of compressed gas and kinetic
energy of falling parts into blow
energy. Pressurized oil from the pump and
accumulator pushes the piston upward and
compresses the nitrogen, when the quick release
valve fully opens, high pressure gas pushes the
piston down-ward rapidly and accelerates the
falling part during working stroke , a hammer
blow with stipulated ,kinetic energy is formed.
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Hydra-Pneumatic

• 2 Technical characteristics of Hua-an
  Hydra-Pneumatic hammer
• High instantaneous velocity
• high blow energy
• high blow rate
• high quality of forged piece
• energy saving
• more possibility to completing the forging with
  one heating .

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The hammer is composed of hammer frame ,pump
station and electronic system?
3 Hammer construction
Pump Station
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Hydra-Pneumatic
1. Hydra-Pneumatic hammer constitution
Power head, hammer tup, piston rod, hammer body,
tup guides, top pallet, bottom pallet. Power head
including the main body, accumulator, buffer
cylinder, gas cylinder, piston rod cylinder and
bottom gland seal.
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Hydra-Pneumatic
1)Upper tank This is a critical part of the
hammer, it connects the hammer legs and holds the
main components, comprising of control valve, oil
discharge valve and safety valve.
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Hydra-Pneumatic
2)Accumulator (right) It is an indispensable
part of the hammer it is divided into an upper
gas chamber and a lower oil chamber by a piston.
It is used for storing compressed gas and
pressurized oil respectively .It provides
pressurized oil for the fast movement of the
hammer.
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Hydra-Pneumatic
3)Gas cylinder and oil cylinder (left) Oil
cylinder having a piston inside is surrounded by
a gas cylinder. The space between the two
cylinders is filled with compressed nitrogen .The
top of gas cylinder is open to the gas cylinder
and the lower part of the oil cylinder is filled
with pressurized oil .The pressure difference
between oil and gas produces the hammer
movement.
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Hydra-Pneumatic
4)Buffer cylinder It is a very important part
for safety protection and is composed of a
cylinder , piston, cover and spring .There is
low pressure nitrogen in the upper cavity . When
the piston rod returns to the top of the gas
cylinder too fast, its excess kinetic energy is
absorbed so avoiding the cylinder cover breaking
away and further damage
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Hydra-Pneumatic
5)Main gland seals They are important parts
for sealing high pressure oil in the lower
chamber of the oil cylinder and positioned at the
bottom of upper tank .They are also the guide for
piston rod. Seal of high-low pressure
combination and fixation of duplex clamping
have realized dual purpose of safety and
reliability.
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Hydra-Pneumatic
Third, unique feature
1. Hydra-Pneumatic hammer constitution
6)Ram piston rod and their connection Ram and
piston rod are designed and manufactured
according to international standards to assure
their strength and rigidity under alternating
stress after long term use. The piston rod is
reliable for five years under normal conditions.
They are connected using a taper for convenient
maintenance without damage to the ram.
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Hydra-Pneumatic
Third, unique feature
3. Electrical system characteristic
Design purpose of the electronic system is
reasonable structure and advance performances
for stable ,reliable running ,sensitive control
,low failure,long life, All components are
available locally. The electrical system meets
all current EU directives.
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Hydra-Pneumatic
Fourth, The conversion process from air to
Hydra-Pneumatic
The process is that using hydraulic power head
substitutes the original air cylinder with the
power head, guides, pump station, electronic
control system and nitrogen gas system.
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Hydra-Pneumatic
Fifth, Hydra-Pneumatic hammer safety systems
The hydra-Pneumatic hammer is a high speed
reciprocation unit that creates intense
vibration, for the guaranteed of equipment under
normal operation and man-machine security, we
adopted a "quality first, safety first"
principle, we have successfully developed many
protective measures within the control system
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Hydra-Pneumatic hammer safety technology
introduction
Hydra-hydraulic hammer safety measures

• 1. Oil temperature over temperature with
  automatic cooling
• Oil level monitoring automatic system shut down
• Filter blockage system
• All pumps are automatically monitored
• Pressure test automatic monitoring system
• Main gland seal leakage monitoring system
• Pipeline bursts protection system
• Hammer piston rod monitoring protection system.

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5 Ton Arch Hammer Conversion
Damping Cylinder Hydraulic Cylinder
Electric Control Main Tank Bottom Gland
seal Connecting Bolts Tup Slides
High Pressure Gas Pipe Accumulator Main
Operating Valve Quick Release Valve Oil Supply
Pipe Oil Return Pipe Piston Rod Tup Operating
Lever
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Rigby Hammer

Damping Cylinder Composed Cylinder Electrical
control Main Tank Ram seal Ram Guides
High Pressure Gas Pipe Accumulator Main Control
Valve Oil Supply Pipe Oil Return Pipe Quick
Release Valve Piston Rod Hammer Head Operating
lever
Cylinder Air Ports Piston Piston Rod Hammer
head Upper Anvil



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Piston And Cushion System
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Piston Gland
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Hydra-pneumatic hammer
Third, unique feature
2. Hydraulic pressure station characteristics
Hydraulic station is a pressurized oil supply
system for the storing and releasing high
pressure oil. It includes oil tank , motor ,
Hydraulic pump , Hydraulic valve, refrigerator,
Hydraulic oil , system of gas storage. The design
purpose is reasonable structure and advance
performances for stable and reliable running
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Hydraulic Schematic
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Hydraulic pump station

Oil Tank High pressure feed pipe Electric
heater High Pressure Oil Pipe Oil Return
Port Unloading valve Pressure Gauge Pressure
Switch Oil Suction Filter Hand operated
Valve Hydraulic pump Motor And Coupling
Oil Level And Thermometer Motor
Bracket Motor Hydraulic Pump Plate type
Strainer
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Rigby Hammer New or Upgraded Components
List of replaced and increased parts for conversion of 1.5t hammer List of replaced and increased parts for conversion of 1.5t hammer List of replaced and increased parts for conversion of 1.5t hammer List of replaced and increased parts for conversion of 1.5t hammer List of replaced and increased parts for conversion of 1.5t hammer List of replaced and increased parts for conversion of 1.5t hammer
Parts Name Type and size Weight (kg) Quantity Spare notes
1 Cylinder sleeve DY2-1-07 355 1  
2 Damping cylinder DY2-1-08 166 1  
3 Accumulator XNQ-00 260 1  
4 Main tank DY2 700 1  
5 Falling blow system DY2-1-02 1540 1  
6 Underneath seal DY2-1-04 70 1  
7 Guides DY2-1-03-20 130 2  
  Tapered adjusting plate DY2-1-03-19 25 2  
8 bracket DY2-1-03-03 2000 1  
9 Connecting bolt DY2-1-03-06 3 6  
10 Cushion valve HCF20-00 17 1  
11 Main operating valve ZCF-00 110 1  
12 Quick release valve KFF-00 20 1  
13 Hydraulic station   3200 1  
14 Distribution box   200 1  
15 Operation board   200 1  

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Arch Hammer Replaced Or Upgraded Parts
Parts Name Type and size Weight (Kg) Quantity Spare notes
1 Cylinder sleeve SDY5-01-12-00 900 1  
2 Damping cylinder MDY5-01-08-00 125 1  
3 Accumulator XNQ-00 725 1  
4 Main tank SDY5-01-11-00 2930 1  
5 Main Ram SDY5-01-09-00 5100 1  
6 Underneath seal MDY5-01-14-00 92 1  
7 Guides SDY5-01-15 475 2  
8 Connection plate SDY5-01-10 2900 1  
9 Connecting bolt SDY5-05-11-00 30 8  
10 Cushion valve MDY5-01-15-00 17 1  
11 Main operating valve ZCF-B-00 121 1  
12 Quick release valve KFF-B-00 23 1  
13 Hydraulic station   8400 1  
14 Distribution box   400 1  
15 Operation board   400 1