7results about How to "The test data is real" patented technology

The invention discloses an airplane wheel driving and rotating device, particularly relates to the technical field of airplane maintenance equipment, and aims to solve the technical problem that an existing airplane wheel driving and rotating device firstly drives and rotates airplane wheels and then performs a brake test, which is different from a real landing condition, and a real landing environment cannot be simulated. The device comprises a rack, a contact roller is installed on the rack, the contact roller is driven by a driving module installed on the rack to rotate, and an asphalt concrete layer is arranged on the outer side of the contact roller and used for simulating the pavement of an airplane runway. The invention provides an airplane wheel rotation driving device which can simulate a real braking environment, so that working state test data of an airplane wheel braking system can be closer to a real value, and powerful data theory support is provided for research of the airplane wheel braking system.

The present invention provides a simulation device and method for purifying mine water by underground reservoir rock mass, the simulation device comprises a purification module group, which comprises at least one purification unit connected in series, the purification unit comprises a plurality of purification modules assembled and connected in a modular manner, each of the purification modules is filled with underground reservoir rock mass with a preset particle size distribution; and a water storage component, which is connected to the inlet of the purification module group to supply the mine water to be purified. By using the simulation device, the test purification path can be effectively increased, the test cycle can be shortened, and the modular assembly is adopted, which is easy to install and operate, and effectively saves installation time.

This invention discloses a method, system, and apparatus for differential pressure testing of industrial pipe fittings, relating to the field of industrial technology. The method includes: for each target test condition, adjusting the flow rate of the differential pressure testing system to the target flow rate value corresponding to the target test condition, adjusting the pressure to the corresponding target pressure value, and maintaining both the target flow rate value and the target pressure value within a preset fluctuation range; when the flow rate parameters and pressure parameters of the target test condition meet the preset stability judgment criteria, measuring and recording the differential pressure data of the industrial pipe fitting under test under the target test condition. By employing a closed-loop differential pressure testing system, the test medium achieves stable circulation within a closed loop. By setting multiple test conditions determined by target flow rate values ​​and target pressure values, and precisely adjusting the system flow rate and pressure to the target values ​​and maintaining them within the preset fluctuation range, the method meets the requirements for high-precision, multi-condition differential pressure performance testing of industrial pipe fittings.

The utility model discloses a driving main engine brake torque detection tool, comprising an escalator driving main engine, one end of the escalator driving main engine is provided with a driving main engine main shaft, one side of the driving main engine main shaft is fixedly connected with a flat key, and the driving main engine main shaft is sleeved with a reducing sleeve. According to the utility model, through the arrangement of the reducing sleeve, the torque transmission and torsion conditions of the main shaft in the actual working state can be simulated, the torque test is more accurate, and the connection of the reducing sleeve can reduce the risk of damage to the main shaft and a related transmission system, because the reducing sleeve can better share and transmit the torque, the test efficiency is improved. And the damage risk possibly caused by direct operation is reduced.

The invention provides a multi-working-condition rolling rock breaking testing machine for a shield tunneling machine, which is used for a cutting rock breaking test and comprises a rock tray experiment box for placing a rock sample; the cutter assembly is opposite to the rock disc experiment box and comprises a supporting disc, a cantilever beam and a cutter, the cantilever beam is connected with the supporting disc, and the cutter is arranged on the cantilever beam; the rotating assembly is used for driving one of the rock disc experiment box and the cutter assembly to rotate relative to the other one; wherein a lifting assembly and an angle adjusting assembly are arranged between the supporting disc and the cantilever beam, the lifting assembly is used for driving the cantilever beam to do lifting motion relative to the supporting disc, and the angle adjusting assembly is used for driving the cantilever beam to do rotating motion relative to the supporting disc. By adopting the multi-working-condition rolling rock breaking testing machine for the shield tunneling machine, the technical problem that rock breaking testing is difficult to realize in different hob permutation and combination modes in the prior art can be solved.

The present invention provides a simulation device and method for purifying mine water by underground reservoir rock mass, the simulation device comprising: a purification module group, which comprises a plurality of purification units connected in series and parallel to each other, the purification unit comprising a plurality of purification modules assembled and connected in a modular manner, each purification module being filled with underground reservoir rock mass having a preset particle size distribution; a water storage assembly, which is connected to the inlet of the purification module group to supply the mine water to be purified; and at least one flexible connector, which is arranged between adjacent purification units so that adjacent purification units can rotate relative to each other. By using the simulation device of the present invention, it is possible to effectively increase the test purification path and shorten the test cycle, and it adopts modular assembly, is easy to install, easy to operate, effectively saves installation time, and can realize angle adjustment for a certain purification unit to simulate the purification effect of the inclined coal seam underground reservoir rock mass on mine water.

The utility model provides a car lamp mask defect detection device, which comprises a supporting mechanism, the supporting mechanism is provided with a flexible telescopic or splicable adjusting assembly, and the adjusting assembly comprises a size adjusting assembly and a height adjusting assembly. The adjusting assembly allows a user to freely adjust the opening size and height of the supporting mechanism according to actual needs; the liquid separation mechanism is arranged on the supporting mechanism and is adjusted along with the adjustment of the adjusting assembly, and testing liquid is placed in the liquid separation mechanism; the fixing mechanism is used for fixing the liquid separation mechanism on the supporting mechanism; and the temperature adjusting mechanism is connected with the liquid separating mechanism and is used for heating the test liquid in the liquid separating mechanism and controlling the temperature of the test liquid. The residual stress detection problem of environmental stress cracking of the vehicle lamp mask is solved, the flexibility of a measuring container is further improved, and the detection range of the vehicle lamp mask is expanded.