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Heading machine main drive sealing experiment table and application method thereof

A technology of main drive and test bench, which is applied in fluid tightness testing, liquid tightness measurement using liquid/vacuum degree, machine/structural component testing, etc. It can solve problems such as poor reliability and insufficient adaptability, and achieve Applicable effect

Pending Publication Date: 2021-07-23
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes a roadheader main drive sealing test bench and its application method, which solves the technical problems of poor reliability and insufficient adaptability of the existing roadheader main drive sealing test bench

Method used

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  • Heading machine main drive sealing experiment table and application method thereof
  • Heading machine main drive sealing experiment table and application method thereof
  • Heading machine main drive sealing experiment table and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1, a kind of roadheader main drive seal test bench, such as figure 1 As shown, it includes the outer box body 5 of the test bench, and the outer box body 5 of the test bench is fixedly connected with a driving device 1, and the driving device 1 is a hydraulic motor or an electric motor. The output end of the driving device 1 is connected to the sealing installation ring 4 through the rotating ring 21 of the slewing bearing 2, and the sealing installation ring 4 is driven to rotate synchronously by the driving device 1, so the sealing installation ring 4 will rotate relative to the outer box 5 of the test bench. The fixed ring 22 of the slewing bearing 2 is fixedly connected with the outer box body 5 of the test bench, and the rotating ring 21 meshes with the output end of the drive device 1 through the ring gear, which can not only ensure the stability of the drive device 1, but also ensure the power transmission process stability.

[0039] Further, the fixe...

Embodiment 2

[0050] Embodiment 2, an application method of the main drive sealing test bench of a roadheader, when simulating the sealing work of the main machine of the roadheader, when the drive device 1 is not running, conduct a static pressure test on the experimental seal ring 7; when the drive device 1 is running At this time, the experimental seal ring 7 is subjected to a dynamic pressure-bearing experiment. At this time, the driving device 1 sets the rotational speed according to the actual linear velocity of the sealing lip under the diameter simulated by the experimental seal; by replacing the eccentricity adjustment ring 3 with different eccentricity, the structural member can be adjusted The amount of deformation and the amount of seal eccentricity caused by vibration displacement are simulated and tested on sealing components under various working conditions.

[0051]During the dynamic pressure test, the driving device 1 drives the rotating ring 21 to rotate, and then drives th...

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Abstract

The invention discloses a heading machine main drive sealing experiment table and an application method thereof. The heading machine main drive sealing experiment table comprises an experiment table outer box body and a driving device, the driving device is connected with a sealing installation ring through a replaceable eccentricity adjusting ring, and a sealing assembly is arranged between the sealing installation ring and the experiment table outer box body; the eccentricity adjusting ring and the sealing mounting ring are axially clamped and fixedly connected in the circumferential direction, an area surrounded by the adjacent sealing assemblies, the sealing mounting ring and the test bed outer box body is a pressurizing cavity, and a sealing temperature measuring system and a grease pressurizing channel are arranged at the sealing assemblies. The table not only can simulate the adjustment of sealing eccentricity under different diameters and provide the working condition, the environment, the pressure and the linear velocity of the sealing lip during actual sealing use, but also can monitor and record the pressure and temperature data of the experimental sealing in real time, and can perform the new section sealing experiment at low cost. And powerful conditions are provided for research, design and experiments of large-diameter shield sealing, high-bearing pressure sealing and high-running-linear-speed sealing.

Description

technical field [0001] The invention relates to the technical field of sealing test, in particular to a main drive sealing test bench of a roadheader and an application method thereof. Background technique [0002] With the rapid development of urban infrastructure, building groups and underground pipe networks are becoming increasingly dense, and roadheaders are playing an increasingly important role as the main equipment for tunnel construction. With the current high water pressure, large buried depth, and the gradual increase in the demand for tunnel projects with super large diameters, new challenges have been brought to the sealing of the shield. However, there is currently no test bench in the market for simulating the actual working conditions of the large-diameter main drive seal, and the test bench on the market is not compatible with the seal, so it is impossible to economically realize the experiment after the seal section is adjusted during the seal research proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26G01M3/00
CPCG01M3/26G01M3/002
Inventor 何聪石鑫赵茜叶超胡燕伟李坤杰周罘鑫李少辉何翔宇卫宸瑜崔云翔杜秀洋
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD