1. Technical Proposal Description
1)The working environment of the machine
●Temperature: 0 ℃ -50 ℃.
●Humidity: Relative humidity below 35% -65%.
●Voltage: 440V 60Hz, 3 phase---customized
●Installation site: less dust
● Altitude: below 1000M
2, Main technical parameters of the machine
No | Name | UNit | YD28-400T/200T |
1 | Nominal force | KN | 6000 |
2 | Maximum working pressure of liquid | MPa | 25 |
3 | Maximum tensile force | KN | 4000 |
4 | Maximum edge pressure | KN | 500*4 |
5 | Opening height | mm | 1200 |
6 | Stretch slider stroke | mm | 1000 |
7 | Effective area of workbench: Left and right column inner * front
and rear edges | mm | 1300*1300 |
8 | Edge pressing slider stroke | MM | 900 |
3,Supply of main supporting parts:
High pressure oil pump | Shaoyang Victor (http://www.shaoyecn.com) |
Hydraulic system | Taifeng (http://www.taifenghydraulic.com) |
Hydraulic cylinder | Factory |
Motor | Huanqiu (www.js-hqdj.com) |
an electric appliance | Schneider |
PLC | Haiwell |
4, Safety protection:
NO | Item | measure |
1 | mechanical protection | Electric motors and rotating components have rotation direction
markings |
There is a zebra crossing warning on the lower edge of the slider |
2 | Hydraulic protection | System overflow valve to prevent overpressure |
3 | Electrical protection | The electric motor adopts thermal relay protection |
The control circuit protection adopts low-voltage circuit breakers |
Emergency stop button |
There is an overtravel switch protection at the bottom dead center
of the slider |
Safe and reliable grounding device |
4 | Operational safety measures | In case of emergency, press the "emergency stop" button |
Safety sign: The bottom edge of the slider has zebra crossings,
etc. |
5, Performance and characteristics:
This machine has an independent power mechanism and electrical
system, and adopts PLC centralized control. The process action is
manual and semi-automatic control mode. The hydraulic system adopts
integrated plug-in valves, which are compact in structure,
sensitive in action, and reliable. Fast speed, low energy
consumption, and low noise. The working pressure and stroke range
of this series of products can be adjusted according to work needs.
6, Structure Overview:
This machine consists of two main parts: the host and the control
mechanism, which are connected by oil pipelines and electrical
devices to form a whole. The main engine part includes the body,
main cylinder device, etc. The control mechanism consists of
hydraulic pump station, electrical box, mobile control console,
etc. The structure and function of each part are described as
follows::
1)The body of this machine adopts a four beam and four column
structure: it consists of upper crossbeam, deep drawing slider,
edge pressing slider, worktable, main cylinder, lower top cylinder,
column, control system, and electrical system..
2) Master cylinder: The master cylinder body is fixed to the table,
and the lower end of the piston rod is connected to the slider with
a flange, bolt, and slider. The piston head is divided into two oil
chamber cylinders with YX sealing rings in opposite directions, and
an O-ring is installed on the outer circumference of the guide
sleeve, which is locked with flanges and bolts to ensure the
sealing of the cylinder mouth. A dust ring is installed on the
cylinder flange to ensure dust prevention of the piston rod..
3) Limiting device: The limiting device is installed on the right
side of the machine and is mainly used to control the stroke
distance of the slider. It consists of shims, contactless travel
switches, etc..
4) Hydraulic station: The hydraulic pump consists of an oil tank,
an axial piston pump, a motor, a two-way plug valve, a
high-pressure self sealing oil filter, and an air filter, and is
installed on the right side of the machine. The fuel tank is made
of Q235 steel plate welded parts, and a pressure gauge is installed
at the front end for the purpose of observing pressure. A level
gauge is installed in the fuel tank to observe the oil level. A
high-pressure self sealing oil filter is installed at the suction
port of the oil pump to ensure the cleanliness of the pump and
hydraulic system. An air filter is installed on the panel of the
fuel tank, and when the upper cover is opened, refueling can be
done..
5) Axial piston pump: This hydraulic system uses an axial piston
pump. The instructions are provided in the user manual and will not
be summarized here..
6) Two way plug-in valve: Its structure mainly consists of a
plug-in component, a control cover plate, a pilot control valve,
and an integrated valve block.
A plug-in component consists of a valve insert, a seal, a valve
body, etc. It can be a cone valve or a slide valve structure. Its
main function is to control the direction, pressure, flow rate,
etc. of oil flow in the oil circuit.
B. The control cover plate is composed of various micro pilot
control components and other hydraulic components embedded in the
cover plate. The main function is to fix the plug-in components.
Various embedded micro pilot control components combined with pilot
control valves can control the working state of the plug-in valve.
Control covers are divided into directional control covers,
pressure control covers, and flow control covers.
C. The pilot control valve is installed on the control cover plate
and is an electromagnetic directional valve that controls the
action of the plug-in. Its component is an electromagnetic
directional valve.
D. The integrated valve block is used to install plugins, control
covers, and other control valves, and to communicate between the
main oil circuit and the control oil circuit..
7, Overview of Hydraulic System
The hydraulic system consists of energy conversion devices (oil
pump and oil cylinder) and energy transmission devices (oil tank,
oil pipeline). With the help of electrical system control, the
slider is driven to complete various action cycles.
8, Electrical control system
1. The machine is equipped with an independent electrical control
box, which can be freely moved on both sides of the equipment, and
the operation of the entire machine is controlled by centralized
buttons.
9, Operating System
1. There are two operating modes: jog and semi-automatic, as well
as two process operations: fixed range and fixed pressure.
2. The slider stroke is adjusted by a contactless switch control
device.
3. The pressure of the master cylinder is adjusted by the pressure
regulating valve.
4. The holding time can be freely set.