3
4. Data display module
Data display module includes data matching and data
display functions. Data matching refers to matching the
attitude data transmitted by the lower machine with each
component of the hydraulic support, so as to facilitate
subsequent display. The function of data display is to com-
bine the matched data with the hydraulic support model
through the program written, so that the model support
and the solid support move synchronously, and at the same
time, the load and inclination situation of the support is
drawn in real time line chart, so that the experimenter can
intuitively monitor the movement and load state of the
hydraulic support, which is conducive to the analysis of the
experimental data later. When there are special cases such
as tipping, sliding, biting, etc. on the working face with
large inclination Angle, users can be reminded to make cor-
responding control actions.
Physical Model Composition
In view of the major needs of safe and efficient green devel-
opment and utilization of coal seams under complex burial
conditions, a multifunctional variable Angle large-propor-
tion “support surrounding rock” system physical simula-
tion and simulation experimental platform was developed
and manufactured, which was used to study and solve the
basic scientific problems, key technical problems and field
process problems of safe and efficient mining of complex
and difficult coal seams.
The platform is composed of an outer frame and an
inner frame, as shown in Figure 2. The inner frame Angle is
adjustable from 0° to 67° without pole and has stage lock-
ing. Four groups of hydraulic systems are arranged to realize
synchronous or asynchronous loading in vertical direction
within the above inclination range. The platform is suitable
for different burial conditions, and can simulate the physi-
cal environment of the working face with an inclination of
0°~67°, dynamically monitor the posture and state of the
hydraulic support, realize the mining technology experi-
ment of the stope, load loading and load control of the roof
and floor, and carry out the dynamic simulation of the spa-
tial interaction between the support and surrounding rock
with a large scale support model (1:5).
The platform can realize the dynamic and static con-
trollable loading of coal rock mass or support in the frame
of the model. Load control PLC system is built in the test
bench, and a force closed loop composed of proportional
servo valve and pressure sensor is arranged to control the
output of hydraulic cylinder. The loading requirements of
coal and rock mass or support in the inner frame space can
be achieved with a maximum loading pressure of 0.2 MPa,
which can be realized either by setting the value of each
loading point individually (combined) or by periodic pres-
sure simulation loading, or by impact pressure simulation
loading. The specific parameters of the test bench are shown
in Table 1.
Figure 1. Composition of attitude sensing and simulation system of hydraulic support
4. Data display module
Data display module includes data matching and data
display functions. Data matching refers to matching the
attitude data transmitted by the lower machine with each
component of the hydraulic support, so as to facilitate
subsequent display. The function of data display is to com-
bine the matched data with the hydraulic support model
through the program written, so that the model support
and the solid support move synchronously, and at the same
time, the load and inclination situation of the support is
drawn in real time line chart, so that the experimenter can
intuitively monitor the movement and load state of the
hydraulic support, which is conducive to the analysis of the
experimental data later. When there are special cases such
as tipping, sliding, biting, etc. on the working face with
large inclination Angle, users can be reminded to make cor-
responding control actions.
Physical Model Composition
In view of the major needs of safe and efficient green devel-
opment and utilization of coal seams under complex burial
conditions, a multifunctional variable Angle large-propor-
tion “support surrounding rock” system physical simula-
tion and simulation experimental platform was developed
and manufactured, which was used to study and solve the
basic scientific problems, key technical problems and field
process problems of safe and efficient mining of complex
and difficult coal seams.
The platform is composed of an outer frame and an
inner frame, as shown in Figure 2. The inner frame Angle is
adjustable from 0° to 67° without pole and has stage lock-
ing. Four groups of hydraulic systems are arranged to realize
synchronous or asynchronous loading in vertical direction
within the above inclination range. The platform is suitable
for different burial conditions, and can simulate the physi-
cal environment of the working face with an inclination of
0°~67°, dynamically monitor the posture and state of the
hydraulic support, realize the mining technology experi-
ment of the stope, load loading and load control of the roof
and floor, and carry out the dynamic simulation of the spa-
tial interaction between the support and surrounding rock
with a large scale support model (1:5).
The platform can realize the dynamic and static con-
trollable loading of coal rock mass or support in the frame
of the model. Load control PLC system is built in the test
bench, and a force closed loop composed of proportional
servo valve and pressure sensor is arranged to control the
output of hydraulic cylinder. The loading requirements of
coal and rock mass or support in the inner frame space can
be achieved with a maximum loading pressure of 0.2 MPa,
which can be realized either by setting the value of each
loading point individually (combined) or by periodic pres-
sure simulation loading, or by impact pressure simulation
loading. The specific parameters of the test bench are shown
in Table 1.
Figure 1. Composition of attitude sensing and simulation system of hydraulic support