- Model: DIT122Z
- Impact energy: 5J~120J
Full-Automatic Drop Weight Impact Testing Machine for Diamond is
mainly applied to detect the impact resistance of the PDC
(Polycrystalline Diamond composite). The test is designed to raise
the hammer to a certain height and then release to freely drop and
impact onto PDC and the matrix. Observe the break of the PDC layer
and the matrix. This testing machine can raise, impact and clamp
the hammer automatically.
Main Frame and Functions
The testing machine consists of the main frame, hammer components,
driving systems, hammer release/clamp device, specimen holder,
security guards, and control system components.
The base plate is made of a processed block of NO.45 solid steel.
Between the bottom plate and the top plate stand 4 support columns,
two light rods stand in the middle to guide the hammer to ensure
the stability of the equipment during impact.
Hammer assembly is divided into the hammer body and the weight. The
body weighs 5kg. There are 2 weights, and each weighs 2.5kg. Weight
and hammer body is connected by a screw to make sure that the
assembly will not get loose under long-time operation. The hammer
body is made of 6CrW2Si, with good impact resistance, long life,
small abrasion and it is easy to use.
Motor-driven sprockets are introduced to the power system to drive
the chain to raise the hammer assembly. Imported high-precision
optical encoder can detect the corresponding height of the sticker
during the test and can also raise the sticker to the target height
to make sure the accuracy of the impact energy.
Striker release/clamp device
With the self-locking device inside, the striker release/clamp
device can lock itself automatically and immediately after the
raise of the hammer. There is no decoupling under the gravity of
the hammer. Otherwise it will lead to an accident. There is a
proximity switch that can detect the place of the hook so that once
the hammer is not clamped, the crosshead will not be raised. By
adopting the electromagnet to release the hammer, the installation
and operation is much easier and this device has a longer lifetime
and good security.
There are 3 kinds of Specimen holders, respectively designed for 75
° impact, direct impact, and PDC sphere bottom impact. It is only
needed to change the specimen holder for different tests. There is
no need to replace the whole set of fixtures seat for another test.
With a closed protective net, the safety guards can effectively
prevent the fracture specimen from splashing, and can also prevent
the operator from entering the interior of the machine. The safety
net has a door limit switch, which will lock the testing machine in
the case of the open of the protective door. In this case, any
operation is invalid and mistakes will be avoided to guarantee the
safety of the operator.
The testing machine is equipped with a set of automatic control
system, which will realize the full-automatic process of the raise,
shock and clamp of the hammer. It reduces the intensity of the
labor and increases the work efficiency and operating safety.
PLC programmable logic controller from Siemens is introduced to
design automatic control system of the testing machine. Equipped
with a touch screen as the terminal operating machine, together
with the PLC ‘s reliability and high stability and its strong
anti-interference ability, this machine promotes the reliability
and stability of the whole control system and avoid malfunction,
greatly improving the security of operator .
|Quality of the hammer components||10kg|
|Weight mass||2.5kg for each, 2 weights in total|
|Hammer mass accuracy||±1%|
|Weight mass accuracy||±0.5%|
|Velocity of hammer-raising||3m/min|
|Accuracy of height measurement||≤±1mm|
|Power supply||three-phase, five-line 380V ± 10%|
Note: The user is responsible for equipment foundation