CN109030044B - Multifunctional tunnel tunneling experimental device - Google Patents
Multifunctional tunnel tunneling experimental device Download PDFInfo
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- CN109030044B CN109030044B CN201810667395.9A CN201810667395A CN109030044B CN 109030044 B CN109030044 B CN 109030044B CN 201810667395 A CN201810667395 A CN 201810667395A CN 109030044 B CN109030044 B CN 109030044B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a multi-functional tunnel tunnelling experimental apparatus, experimental apparatus is including basis, the direction barrel, the tool bit, go up the support body, the pressure barrel, drive arrangement, pneumatic impacter, the inflation inlet, controlling means, pressure sensor, fixed support body, through the pressure in the pressure barrel and the impact force degree of pneumatic impacter, impact time, the cooperation is adjusted in the time of impact number of times etc. can realize under different continuous pressure and different pulse pressure combined action, the test of tool bit tunnelling speed, this experimental apparatus can realize simultaneously that the experiment about the various operating modes of tunnel tunnelling speed of exerting continuous pressure and impact pressure is implemented on the blade disc at same experimental apparatus.
Description
Technical Field
The invention belongs to a multifunctional tunneling experimental device.
Background
The shield machine is a special engineering machine for tunneling, integrates light, mechanical, electrical, hydraulic, sensing and information technologies, has the functions of excavating and cutting soil and rock, conveying soil and slag, assembling tunnel lining, measuring, guiding and correcting deviation and the like, relates to multiple subject technologies such as geology, construction, machinery, mechanics, hydraulic pressure, electricity, control, measurement and the like, and is designed and manufactured in a 'body-measuring clothes-cutting' mode according to different geology, and has extremely high reliability requirement. The shield tunneling machine is widely used for tunnel engineering of subway, railway, highway, municipal administration, hydropower and the like.
In the construction process of tunneling a cutter head of a shield tunneling machine, a certain continuous pressure is usually applied to a cutter head to realize the contact of the cutter head and the rock with a certain continuous pressure, and then the cutter head is rotated to realize the cutting of the rock; at present, the mode of applying impact pressure to the cutter head is provided, intermittent impact pressure is applied between the cutter head and the rock, then the cutter head is rotated, and the rock is cut.
However, the prior art does not provide an experimental apparatus for tunnel boring speed that simultaneously achieves the application of continuous pressure and impact pressure on the cutterhead.
Disclosure of Invention
The invention provides a multifunctional tunneling experimental device for overcoming the defects in the prior art, and the experimental device can simultaneously realize the experiment of various working conditions of applying continuous pressure and impact pressure on a cutter head on the tunneling speed by the same experimental device.
In order to achieve the above purpose, the technical scheme of the invention is as follows: a multifunctional tunneling experimental device comprises a foundation, a guide cylinder, a tool bit, an upper frame body, a pressure cylinder, a driving device, a pneumatic impactor, an inflation inlet, a control device, a pressure sensor and a fixed frame body; the experimental device comprises an experimental device and is characterized in that a foundation formed by pouring steel beams and concrete is arranged at the bottom of the experimental device, a guide cylinder body is fixedly arranged on the foundation, a rock sample to be tested is placed on the foundation and in the guide cylinder body, an upper frame body is arranged above the guide cylinder body and can slide up and down along the guide cylinder body, a guide bulge is arranged at the outer circle of the upper frame body, a guide groove is arranged on the inner wall of the guide cylinder body, the guide bulge on the upper frame body and the guide groove on the guide cylinder body are matched with each other to guide the up-and-down movement of the upper frame body, a through hole is arranged at the center of the upper frame body, a driving shaft penetrates through the through hole, and a cutter head is arranged at the lower end of the driving shaft;
the device is characterized in that the driving device is arranged at the upper end of the driving shaft, the driving device comprises a variable frequency motor and a speed reducing device, the driving shaft is in driving connection with the speed reducing device, and the driving device is connected with the control device through a lead; the fixed frame body is arranged outside the driving device, the fixed frame body is fixedly arranged above the upper frame body, and the pressure cylinder body is fixed above the guide cylinder body; the side part of the pressure cylinder body is provided with the inflation inlet, the pressure cylinder body is inflated with control gas, and the pressure in the pressure cylinder body is controlled; the pressure sensor is arranged on the inner side of the pressure cylinder body and used for detecting the pressure in the pressure cylinder body;
the pneumatic impactor is arranged at the top of the fixed frame body so as to impact the upper frame body and the cutter head; the pneumatic impactor can provide 2-20 impacts per minute and is supplied by the air compressor; the pneumatic impactor is connected with the control device through a lead, and when an electronic signal is sent to the pneumatic impactor through the control device, vibration impact is caused, and the impact strength can be adjusted; and the times and time of impact can be adjusted by a double timer in the control unit.
As a preferred scheme of the multifunctional tunneling experimental device, the upper end and the lower end in the through hole are respectively provided with a bearing, and the driving shaft and the upper frame body are rotatably connected through the bearings.
As a preferred scheme of the multifunctional tunneling experimental device, the pressure cylinder is welded at the upper end part of the guide cylinder.
Compared with the prior art, the invention has the advantages that: the multifunctional tunneling experiment device provided by the invention can realize the simulation experiment of tunneling speeds under various working conditions. By adjusting the pressure in the pressure cylinder, the continuous pressure of the upper frame body and the cutter head acting on the test rock can be adjusted, so that the test of the tunneling speed of the cutter head under different continuous pressures is realized; the impact acting force of the upper frame body and the cutter head acting on the test rock can be adjusted by adjusting the impact strength, the impact time and the impact frequency of the pneumatic impactor, so that the test of the tunneling speed of the cutter head under the pulse pressure under the same working conditions is realized; the pressure in the pressure cylinder and the impact force, the impact time, the impact frequency and the like of the pneumatic impactor are adjusted in a coordinated mode, so that the tunneling speed of the cutter head can be tested under the combined action of different continuous pressures and different pulse pressures.
Drawings
Fig. 1 is a schematic structure of an embodiment of the present invention.
Wherein the symbols in the drawings are specifically designated as: the pneumatic impact device comprises a foundation 1, a guide cylinder 2, a tool bit 3, an upper frame body 4, a pressure cylinder 5, a driving device 6, a pneumatic impactor 7, an inflation inlet 8, a control device 9, a pressure sensor 10 and a fixing frame body 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in the attached drawing 1, the invention provides a multifunctional tunneling experimental device, wherein a foundation 1 formed by pouring steel beams and concrete is arranged at the bottom of the experimental device, a guide cylinder 2 is fixedly arranged on the foundation 1, a rock sample with a test is placed on the foundation 1 and in the guide cylinder 2, an upper frame body 4 is arranged above the guide cylinder 2, the upper frame body can slide up and down along the guide cylinder 2, specifically, a guide bulge can be arranged at the excircle of the upper frame body 4, a guide groove is arranged on the inner wall of the guide cylinder 2, and the guide bulge on the upper frame body 4 and the guide groove on the guide cylinder 2 are matched with each other to guide the up-and-down movement of the upper frame body 4.
A through hole is formed in the center of the upper frame body 4, a driving shaft penetrates through the through hole, and specifically, a bearing is respectively arranged at the upper end and the lower end in the through hole to rotatably connect the driving shaft with the upper frame body 4; the lower end of the driving shaft is provided with a cutter head 3, the upper end of the driving shaft is provided with a driving device 6, the driving device 6 specifically comprises a variable frequency motor and a speed reducing device, the driving shaft is in driving connection with the speed reducing device, and the driving device 6 is connected with a control device 9 through a lead; a fixing frame body 11 is arranged outside the driving device 6, the fixing frame body 11 is fixedly arranged above the upper frame body 4, a pressure cylinder body 5 is fixed above the guide cylinder body 2, and the pressure cylinder body 5 is welded at the upper end part of the guide cylinder body 2; an inflation inlet 8 is arranged at the side part of the pressure cylinder 5 to inflate the pressure cylinder 5 with gas and control the pressure in the pressure cylinder 5; a pressure sensor 10 is arranged inside the pressure cylinder 5 for detecting the real-time pressure inside the pressure cylinder.
A pneumatic impactor 7 is installed at the top of the fixed frame 11 to apply impact to the upper frame 4 and the cutter head 3. The pneumatic impactor 7 is capable of providing 2-20 impacts per minute and is supplied with a source of air by an air compressor. The pneumatic impactor 7 is connected with the control device 9 through a lead, and when an electronic signal is sent to the pneumatic impactor 7 through the control device 9, vibration impact is caused, and the impact force can be adjusted; while the number and time of impacts can be adjusted by means of a double timer in the control unit.
The multifunctional tunnel tunneling experimental device provided by the invention can realize simulation experiments of various working conditions. By adjusting the pressure in the pressure cylinder 5, the continuous pressure of the upper frame body 4 and the cutter head 3 acting on the test rock can be adjusted, so that the test of the tunneling speed of the cutter head under different continuous pressures is realized; the impact acting force of the upper frame body 4 and the tool bit 3 on the test rock can be adjusted by adjusting the impact strength, the impact time and the impact frequency of the pneumatic impactor 7, so that the test of the tunneling speed of the tool bit under the pulse pressure under the same working conditions is realized; the testing of the tunneling speed of the cutter head under the combined action of different continuous pressures and different pulse pressures can be realized by simultaneously and cooperatively adjusting the pressure in the pressure cylinder 5 and the impact force, the impact time, the impact frequency and the like of the pneumatic impactor 7.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. A multifunctional tunneling experimental device comprises a foundation, a guide cylinder, a tool bit, an upper frame body, a pressure cylinder, a driving device, a pneumatic impactor, an inflation inlet, a control device, a pressure sensor and a fixed frame body; the experimental device comprises an experimental device and is characterized in that a foundation formed by pouring steel beams and concrete is arranged at the bottom of the experimental device, a guide cylinder is fixedly arranged on the foundation, a rock sample to be tested is placed on the foundation and in the guide cylinder, an upper frame body is arranged above the guide cylinder and can slide up and down along the guide cylinder, a guide bulge is arranged at the outer circle of the upper frame body, a guide groove is arranged on the inner wall of the guide cylinder, the guide bulge on the upper frame body and the guide groove on the guide cylinder are matched with each other to guide the up-and-down movement of the upper frame body, a through hole is arranged at the center of the upper frame body, a driving shaft penetrates through the through hole, and a cutter head is arranged at the lower end of the driving shaft;
the device is characterized in that the driving device is arranged at the upper end of the driving shaft, the driving device comprises a variable frequency motor and a speed reducing device, the driving shaft is in driving connection with the speed reducing device, and the driving device is connected with the control device through a lead; the fixed frame body is arranged outside the driving device, the fixed frame body is fixedly arranged above the upper frame body, and the pressure cylinder body is fixed above the guide cylinder body; the side part of the pressure cylinder body is provided with the inflation inlet, the pressure cylinder body is inflated with control gas, and the pressure in the pressure cylinder body is controlled; the pressure sensor is arranged on the inner side of the pressure cylinder body and used for detecting the pressure in the pressure cylinder body;
the pneumatic impactor is arranged at the top of the fixed frame body so as to impact the upper frame body and the cutter head; the pneumatic impactor can provide 2-20 impacts per minute and is supplied with an air source by an air compressor; the pneumatic impactor is connected with the control device through a lead, and when an electronic signal is sent to the pneumatic impactor through the control device, vibration impact is caused, and the impact strength can be adjusted; meanwhile, the times and time of impact can be adjusted through a double timer in the control device; the upper end and the lower end in the through hole are respectively provided with a bearing, and the driving shaft is rotatably connected with the upper frame body through the bearings.
2. A multifunctional tunneling experimental device according to claim 1, wherein the pressure cylinder is welded to the upper end of the guide cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667395.9A CN109030044B (en) | 2018-06-26 | 2018-06-26 | Multifunctional tunnel tunneling experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667395.9A CN109030044B (en) | 2018-06-26 | 2018-06-26 | Multifunctional tunnel tunneling experimental device |
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| Publication Number | Publication Date |
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| CN109030044A CN109030044A (en) | 2018-12-18 |
| CN109030044B true CN109030044B (en) | 2020-10-09 |
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| CN201810667395.9A Active CN109030044B (en) | 2018-06-26 | 2018-06-26 | Multifunctional tunnel tunneling experimental device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114088441A (en) * | 2021-12-21 | 2022-02-25 | 长沙黑金刚实业有限公司 | Impactor experiment machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3402519B2 (en) * | 1994-07-12 | 2003-05-06 | 西松建設株式会社 | Shield excavation model test method and apparatus |
| CN101446537B (en) * | 2008-11-10 | 2010-08-25 | 中南大学 | Adjustable multi-hob rock cutting fragmentation test means |
| CN102841030B (en) * | 2011-06-22 | 2015-06-10 | 中铁隧道集团有限公司 | Test platform used in researching tunnel boring machine tool rock breaking mechanism |
| CN103969141B (en) * | 2013-01-29 | 2016-08-03 | 中南大学 | A kind of hard rock hob breaks rock characteristic test device |
| CN206132516U (en) * | 2016-11-07 | 2017-04-26 | 红河学院 | Multi -functional rock breaking test device |
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Inventor after: Zhou Jianjun Inventor after: Zhang Bing Inventor after: Han Weifeng Inventor after: Li Dong Inventor after: Chen Kui Inventor after: Li Fengyuan Inventor after: Guo Weishe Inventor after: Gao Pan Inventor before: Zhou Jianjun Inventor before: Zhang Bing Inventor before: Guo Weifeng Inventor before: Li Dong Inventor before: Chen Kui Inventor before: Li Fengyuan Inventor before: Guo Weishe Inventor before: Gao Pan |