A loading device for simulating the real working condition test bench of tbm construction work
A technology of loading device and test bench, which is applied in the direction of measuring device, machine/structural component test, instrument, etc., can solve the problems of excavation track deviation from the predetermined track, damage of key structural parts, strong vibration of the whole machine, etc., to achieve complete functions, Precise design and small form factor
Inactive Publication Date: 2017-06-20
TIANJIN UNIV
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Problems solved by technology
During the construction of TBM, the geological environment is complex and bears strong impact loads, which not only easily leads to strong vibration of the whole machine and damage to key structural parts, but also its excavation trajectory will deviate from the predetermined trajectory.
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[0027] The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the described specific embodiments are only to illustrate the present invention, and are not intended to limit the present invention.
[0028] The simulated TBM construction operation real working condition test bench of the loading device of the present invention is installed, and its structure is as follows figure 1 As shown, it includes a loading device 1, a TBM model 2, a support device 3 and a base plate 4, and the loading device 1 of the present invention is fixed on the base plate 4; The cutter head shield connected with step mechanism 21, the loading device 1 and the cutter head shield are arranged in a fixed outer cylinder 16, the fixed outer cylinder 16 is fixed on the loading device base 18, and the support device 3 is set It supports the outside of the step change mechanism 21. Both the loadin...
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The invention discloses a loading device for simulating a real working condition experiment platform of TBM construction, comprising a loading device base and a fixed outer cylinder fixed on the loading device base, the front end of the fixed outer cylinder is provided with a loading device fixing plate, so that The fixed outer cylinder is provided with a load simulation mechanism, a cross slide mechanism, a loading device spherical hinge mechanism, a bending moment simulation mechanism and a load torque simulation mechanism; it can ensure that the test bench equipped with the loading device of the present invention realizes the linear excavation of the TBM model Experiments and experiments with pan or pitch steering of the TBM model. Moreover, the structure of the test bench is simplified, so that the whole machine has a smaller shape, and can more accurately simulate the real working conditions of TBM construction under laboratory conditions, and can accurately simulate the constraint effect of the surrounding rock on the shield under the working conditions of TBM excavation. It can compare the influence of different surrounding rock physical properties on TBM excavation trajectory correction and planning, and provide a basis for the design and control of TBM propulsion system.
Description
technical field [0001] The invention relates to the technical field of a full-face hard rock tunnel boring machine (TBM for short), in particular to a supporting device for loading of a test bench for simulating real working conditions of TBM construction operations. Background technique [0002] The TBM mechanism has the characteristics of underconstraint, and the excavation operation must be realized with the help of surrounding rock constraints. During the construction of TBM, the geological environment is complex and bears strong impact loads, which not only easily leads to strong vibration of the whole machine and damage to key structural parts, but also its excavation trajectory will deviate from the predetermined trajectory. TBM operating conditions are mainly divided into straight-line excavation operating conditions and direction-adjusting operating conditions. Under the operating conditions of straight-line excavating TBM, due to the uneven distribution of rocks in...
Claims
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IPC IPC(8): G01M99/00
Inventor 杨玉虎王宇轩沈兆光黄田
Owner TIANJIN UNIV