阅读说明：本技术 一种旋转式保真取芯器实验平台 (Rotary type fidelity corer experiment platform ) 是由 吴年汉 谢和平 高明忠 陈领 李聪 李佳南 何志强 杨明庆 余波 胡云起 于 2020-06-08 设计创作，主要内容包括：本发明涉及一种旋转式保真取芯器实验平台,包括箱体、用于模拟保真取芯器保真舱的压力实验舱以及可使箱体在水平态旋与竖直态间变化的旋转驱动机构,压力实验舱包括舱体,舱体固定安装在箱体内部。旋转驱动机构包括电机、传动机构、活动块、支撑臂和支座,箱体底端与支座活动连接；传动机构将电机的旋转运动转化为活动块的直线运动,支撑臂两端分别与活动块和箱体活动连接。本发明方便压力实验舱在水平态、倾斜态与竖直态之间切换,可验证在垂直钻进、水平钻进、倾斜钻进等情况下保压实验舱的保压性能以及中心杆、翻板阀、岩心筒等部件动作的可靠性,便于验证设计方案的可行性与科学性,以便从结构上、材料上对该保真舱进行改进。(The invention relates to a rotary type fidelity corer experiment platform which comprises a box body, a pressure experiment chamber and a rotary driving mechanism, wherein the pressure experiment chamber is used for simulating a fidelity chamber of a fidelity corer, the rotary driving mechanism can enable the box body to change between a horizontal state and a vertical state, the pressure experiment chamber comprises a chamber body, and the chamber body is fixedly arranged in the box body. The rotary driving mechanism comprises a motor, a transmission mechanism, a movable block, a supporting arm and a support, and the bottom end of the box body is movably connected with the support; the transmission mechanism converts the rotary motion of the motor into the linear motion of the movable block, and two ends of the supporting arm are respectively movably connected with the movable block and the box body. The pressure holding test chamber is convenient to switch among the horizontal state, the inclined state and the vertical state, can verify the pressure holding performance of the pressure holding test chamber under the conditions of vertical drilling, horizontal drilling, inclined drilling and the like and the reliability of the actions of a central rod, a flap valve, a core barrel and other parts, and is convenient to verify the feasibility and the scientificity of a design scheme so as to improve the fidelity chamber structurally and materially.)

1. The utility model provides a rotation type fidelity corer experiment platform, is including the pressure experiment cabin that is used for simulating the fidelity cabin of fidelity corer, the pressure experiment cabin includes the cabin body, its characterized in that: the cabin body is fixedly arranged in the box body.

2. The rotary fidelity corer experiment platform of claim 1, wherein: the rotary driving mechanism comprises a motor, a transmission mechanism, a movable block, a supporting arm and a support, and the bottom end of the box body is movably connected with the support;

the transmission mechanism converts the rotary motion of the motor into the linear motion of the movable block, one end of the supporting arm is movably connected with the movable block, and the other end of the supporting arm is movably connected with the box body.

3. The rotary fidelity corer experiment platform of claim 2, wherein: the transmission mechanism is a ball screw transmission mechanism, a screw of the ball screw transmission mechanism is connected with the motor, and the movable block is a screw nut of the ball screw transmission mechanism.

4. The rotary fidelity corer experiment platform of claim 2, wherein: the transmission mechanism is a gear and rack transmission mechanism, a gear of the gear and rack transmission mechanism is connected with the motor, and the movable block is fixedly arranged on a rack of the gear and rack transmission mechanism.

5. The rotary fidelity corer experiment platform of claim 2, wherein: the other end of the supporting arm is movably connected with the lower part of the box body.

6. The rotary fidelity corer laboratory platform of claim 2, 3, 4 or 5, wherein: the movable connection is a hinge connection.

7. The rotary fidelity corer experiment platform of claim 1, wherein: the pressure experiment chamber further comprises a linear driving mechanism used for driving a central rod of the pressure experiment chamber to axially move, the linear driving mechanism is fixedly arranged outside the box body, and an output part of the linear driving mechanism is connected with the central rod to drive the central rod to axially and linearly move.

8. The rotary fidelity corer experiment platform of claim 7, wherein: and a tension testing device is arranged between the output part of the linear driving mechanism and the central rod.

9. The rotary fidelity corer experiment platform of claim 7 or 8, wherein: the linear driving mechanism is a cylinder, an oil cylinder or a linear motor.

10. The rotary fidelity corer experiment platform of claim 1 or 8, wherein: the box body is provided with a medium inlet and a medium outlet.

Technical Field

The invention relates to the technical field of experiment systems of coring devices, in particular to an experiment platform of a rotary type fidelity coring device.

Background

The characteristics of deep rock such as physical mechanics, chemical biology and the like are closely related to the in-situ environmental conditions, the in-situ environmental loss in the coring process can cause the distortion and the irreversible change of the physicochemical property and the mechanical property of the rock core, and the key of the attack is how to obtain the in-situ rock core under the deep environmental conditions and carry out real-time loading test and analysis under the in-situ fidelity state.

At present, in-situ fidelity coring devices store rock cores in a fidelity cabin after the rock cores are drilled by a drilling tool, and then perform pressure maintaining sealing on samples through a pressure maintaining control device of the fidelity cabin.

The pressure maintaining performance of the fidelity chamber needs to be continuously verified and improved through experiments, so that the pressure experiment chamber for simulating the fidelity chamber of the fidelity corer is produced. However, the existing pressure experiment chambers can only carry out experiments in one fixed position. In actual exploration work, the conditions of vertical drilling, horizontal drilling, inclined drilling and the like exist, so that the existing pressure experiment chamber cannot meet the requirements.

Disclosure of Invention

The invention aims to provide a rotary type fidelity corer experiment platform which is convenient for verifying the pressure maintaining performance of a pressure maintaining experiment cabin and the reliability of each part under the conditions of vertical drilling, horizontal drilling, inclined drilling and the like.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

rotation type fidelity corer experiment platform, including the box, be used for simulating the pressure experiment cabin of fidelity corer fidelity cabin and can make the box is rotatory to vertical attitude or from vertical attitude to the rotation driving mechanism of horizontal attitude from the horizontality, the pressure experiment cabin includes the cabin body, cabin body fixed mounting is inside the box.

Furthermore, the rotary driving mechanism comprises a motor, a transmission mechanism, a movable block, a supporting arm and a support, and the bottom end of the box body is movably connected with the support;

the transmission mechanism converts the rotary motion of the motor into the linear motion of the movable block, one end of the supporting arm is movably connected with the movable block, and the other end of the supporting arm is movably connected with the box body.

Furthermore, the transmission mechanism is a ball screw transmission mechanism, a screw of the ball screw transmission mechanism is connected with the motor, and the movable block is a screw nut of the ball screw transmission mechanism.

Or the transmission mechanism is a gear and rack transmission mechanism, a gear of the gear and rack transmission mechanism is connected with the motor, and the movable block is fixedly arranged on a rack of the gear and rack transmission mechanism.

Preferably, the other end of the supporting arm is movably connected with the lower part of the box body.

Preferably, the movable connection is a hinge connection.

The rotary type fidelity coring device experiment platform further comprises a linear driving mechanism which is used for driving a central rod of the pressure experiment chamber to move axially, the linear driving mechanism is fixedly installed outside the box body, and an output part of the linear driving mechanism is connected with the central rod to drive the central rod to move axially and linearly.

Furthermore, a tension testing device is arranged between the output part of the linear driving mechanism and the central rod.

Preferably, the linear driving mechanism is a cylinder, an oil cylinder or a linear motor.

Furthermore, a medium inlet and a medium outlet are arranged on the box body.

Compared with the prior art, the invention has the following beneficial effects:

the pressure holding experiment chamber is convenient to switch among a horizontal state, an inclined state and a vertical state, the pressure holding performance of the pressure holding experiment chamber under the conditions of vertical drilling, horizontal drilling, inclined drilling and the like and the reliability of the actions of a central rod, a flap valve, a core barrel and other parts can be verified, and the feasibility and the scientificity of a design scheme can be conveniently verified, so that the fidelity chamber is improved structurally and materially;

2, a tension testing device is arranged between the driving mechanism and the central rod, so that the sealing effect of the pressure maintaining experiment chamber under different tension conditions can be verified;

3, the upper end and the lower end of the pressure maintaining test chamber are connected by the intermediate connecting piece, so that the drilling on the pressure maintaining test chamber can be avoided, and the damage to the pressure maintaining test chamber can be prevented, thereby reducing the pressure environment of the test piece, ensuring that the test result is more real, and being beneficial to improving the accuracy of the experiment.

Drawings

FIG. 1 is a cross-sectional view of the present invention in a horizontal position with the mounting cup not shown;

FIG. 2 is a cross-sectional view of the present invention in an upright position with the mounting cup not shown;

FIG. 3 is a schematic view showing the structure of the present invention in a horizontal state when the mount is installed;

FIG. 4 is a schematic view of the configuration of the holding pressure experiment chamber when the center pole is not lifted;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic view of the configuration of the holding pressure test chamber when the center pole is lifted to the end of travel;

FIG. 7 is a partial enlarged view at B in FIG. 6;

FIG. 8 is a schematic view of the holding pressure experiment chamber when the outer cylinder is disassembled into an upper part and a lower part;

FIG. 9 is a schematic view of the construction of the intermediate link;

FIG. 10 is a schematic view of the pressure experiment chamber in the second embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.