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Rock rheological disturbance effect and step-by-step loading test device

A loading test device and test device technology, applied in the field of rock rheological disturbance test, can solve the problems of high manufacturing cost, high precision requirements of parts and complex system structure, etc.

Active Publication Date: 2021-04-23
NORTH CHINA INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing electro-hydraulic servo principle rock rheometer has the following disadvantages: (1) The stability of the oil pressure system is poor, and there are hydraulic fluctuations, which affect the results of the rock rheological disturbance effect test (the rock rheological disturbance effect test requires a non-fluctuating static load axial pressure); (2) The structure of the system is complex, the precision requirements for parts (such as various hydraulic valves, accumulators, filters, heat sinks, etc.) are high, and the manufacturing cost is high
The existing rrts rock rheological disturbance effect meter is a rheometer combining the principle of electro-hydraulic servo and external gravity loading. This type of rheometer is relatively less dependent on the hydraulic system, but still has the following disadvantages: (1 ) The original axial pressure loading function has a large step-by-step loading level and is instantaneous loading, without low-level continuous slow loading function, and the specimen is prone to accidental damage; (2) The friction force between the wheel disc gears is too large, and the force transmission error is large

Method used

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  • Rock rheological disturbance effect and step-by-step loading test device
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  • Rock rheological disturbance effect and step-by-step loading test device

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specific Embodiment approach 1

[0023] Specific implementation mode one: as Figure 1-Figure 7 As shown, this embodiment discloses a rock rheological disturbance effect and step-by-step loading test device, which consists of: a rock rheological disturbance effect test device and a step-by-step loading test device; the rock rheological disturbance effect test device includes Loading tray 2, frame body 3, force transmission shaft 5, impact weight 6, disturbance dynamic sensor 7, upper pressure bearing plate 8, pressure sensor 10, connecting rope 26, pad assembly, two sliders 4, two sliders Road 24, two levers and three connecting rods; the two levers are respectively lever one 1 and lever two 25, and the three connecting rods are respectively two connecting rods one 23 and one connecting rod two 19; The step-by-step loading test device includes a force transmission rope 13, a telescopic support 15, a bucket 16, a valve 17, a base 18, a fixed claw 20, a gravity weight 21, a bearing 22 and two fixed pulleys 14; ...

specific Embodiment approach 2

[0042] Specific implementation mode two: as figure 1 , figure 2 As shown, this embodiment is a further description of specific embodiment 1. The backing plate assembly includes a plurality of backing plates 11 and a plurality of fixing nails 12; the plurality of backing plates 11 are stacked in sequence, and each The two backing plates 11 are fixedly connected by fixing nails 12 .

specific Embodiment approach 3

[0043] Specific implementation mode three: as figure 1 , image 3 , Figure 5 , Figure 7 As shown, this embodiment is a further description of specific embodiment 1 or 2. The telescopic bracket 15 includes an outer sleeve 27, an inner sleeve 28, two oblique rods 29 and at least one top wire 30; The tube 27 and the inner casing 28 are set in a set, and the upper end of the outer casing 27 is fixedly connected with the lower ends of the two oblique rods 29. The two oblique rods 29 are arranged symmetrically with respect to the center line of the outer casing 27. The axles of the two fixed pulleys 14 are fixedly connected, and the pipe wall of the outer casing 27 is provided with at least one threaded through hole in the radial direction, and a top wire 30 is screwed in the at least one threaded through hole, and the outer casing 27 passes through the top wire 30 It is firmly connected with the inner sleeve 28 , and the lower end of the inner sleeve 28 is fixedly connected wi...

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Abstract

A rock rheological disturbance effect and a step-by-step loading test device belong to the technical field of rock rheological disturbance. The lever one is rotationally connected with the two sliders through two connecting rods, the two sliders are slidingly connected with the two slideways, the two slideways are fixed on the frame body, the sliders are fixedly connected with the power transmission shaft, Pass through the impact weight and fix it in the disturbance dynamic sensor. The impact weight, the disturbance dynamic sensor and the upper pressure plate are arranged from top to bottom, and the test piece, pressure sensor and pad assembly are arranged between the upper pressure plate and the pressure sensor. Arranged on the frame body from top to bottom, the second lever is connected to the connecting rod 2 in rotation, the connecting rod 2 is connected to the slider in rotation, and the lever 2 is connected to the loading tray through a connecting rope; two fixed pulleys are fixed on the telescopic bracket, which can The telescopic bracket is fixedly connected to the rotating shaft, the rotating shaft is connected to the base in rotation, one end of the force transmission rope is fixedly connected to the bucket, and the other end is fixedly connected to the fixed claw bypassing the fixed pulley, and the fixed claw is used to fix the gravity weight. The invention is used for rock rheological disturbance and loading test.

Description

technical field [0001] The invention belongs to the technical field of rock rheological disturbance test, in particular to a rock rheological disturbance effect and step-by-step loading test device. Background technique [0002] The existing electro-hydraulic servo principle rock rheometer has the following disadvantages: (1) The stability of the oil pressure system is poor, and there are hydraulic fluctuations, which affect the results of the rock rheological disturbance effect test (the rock rheological disturbance effect test requires a non-fluctuating static load Axial pressure); (2) The structure of the system is complex, requiring high precision for components (such as various hydraulic valves, accumulators, filters, heat sinks, etc.), and high manufacturing costs. The existing rrts rock rheological disturbance effect meter is a rheometer combining the principle of electro-hydraulic servo and external gravity loading. This type of rheometer is relatively less dependent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/00
CPCG01N11/00G01N2011/0026
Inventor 王波刘重阳谷长宛闫刚杨建林
Owner NORTH CHINA INST OF SCI & TECH
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