CN203658036U - Shield hob test bench - Google Patents
Shield hob test bench Download PDFInfo
- Publication number
- CN203658036U CN203658036U CN201320870266.2U CN201320870266U CN203658036U CN 203658036 U CN203658036 U CN 203658036U CN 201320870266 U CN201320870266 U CN 201320870266U CN 203658036 U CN203658036 U CN 203658036U
- Authority
- CN
- China
- Prior art keywords
- hobboing cutter
- die body
- cutter
- steel die
- stone material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 47
- 239000004575 stone Substances 0.000 claims description 31
- 238000011161 development Methods 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a shield hob test bench, which comprises a steel mold structure body supporting device, a steel mold structure body, a hob cutter head, a tunnel boring machine, a pull rod, a main jacking device, a data acquisition and processing system and a hydraulic system, wherein the tunnel boring machine is horizontally connected with the steel mold structure body supporting device via the pull rod; the steel mold structure body is arranged and fixed on the steel mold structure body supporting device; the hob cutter head is welded and fixed at the front end of the tunnel boring machine and is opposite to the steel mold structure body; the main jacking device is connected at the rear end of the tunnel boring machine; the hydraulic system is connected with the main jacking device and drives the main jacking device to push the tunnel boring machine for horizontal displacement; and the data acquisition and processing system acquires test parameters and transmits the test parameters to the computer for analysis. The shield hob test bench has the advantages that the structure is simple, the performances are complete, adaptability is strong, the reduction degree is high, the test result is accurate, the actual rock breaking process of the hob can be simulated in the horizontal and vertical directions, and force bearing test can be carried out on the hob.
Description
Technical field
The utility model relates to a kind of shield excavation machine testing equipment, be specifically related to a kind of in the horizontal direction with vertical direction full-scope simulation working-yard rock shield structure process, detect the broken lithology of hobboing cutter can shield structure hobboing cutter testing table, belong to building machinery field.
Background technology
Shield excavation machine be realize broken rock, slag tap, the large tunnel digging device of the operation function such as transportation, supporting, it has the features such as safe, fast, efficient, little to environmental disruption, weatherproof, thereby is widely used in the Tunnel Engineering such as railway, water power, highway, subway and municipal administration.In the work of shield excavation machine Tool Design and research, shield structure is theoretical foundation by rock breaking mechanism, efficiency and the abrasion mechanism of hobboing cutter, the practice of construction boring parameter of working-yard also has indispensable reference significance simultaneously, and therefore the research and development of hobboing cutter test unit and configuration are very important.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of shield structure hobboing cutter testing table is provided, in the horizontal direction with vertical direction on the actual rock break-off process of comprehensive imitation hobboing cutter, under the condition of the broken rock speed of difference and pile penetration, the hobboing cutter in test is carried out to forces testing, determine rock breaking mechanism and abrasion mechanism in hobboing cutter rock break-off process, research hobboing cutter rolling speed, pile penetration, characteristics of surrounding rock, the rule of tool dimension to cutter stressing influence, for the structure optimization of knife disc tool with raise the efficiency foundation is provided, simultaneously by the simulation to site operation operating mode, determine the most rational construction parameter.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of shield structure hobboing cutter testing table, it comprises: structure of steel die body fulcrum arrangement, structure of steel die body, hobboing cutter cutterhead, development machine, pull bar, main jacking mechanism, data acquisition processing system and hydraulic system; Described development machine is by described pull bar and described structure of steel die body fulcrum arrangement level connection joint, described structure of steel die body is mounted on described structure of steel die body fulcrum arrangement, and described hobboing cutter cutterhead is fixedly welded on the front end of described development machine and relative with this structure of steel die body; Described main jacking mechanism is connected in the rear end of described development machine, described hydraulic system connects this main jacking mechanism and drives this main jacking mechanism to advance described development machine to carry out horizontal shift, and described data acquisition processing system acquisition test parameter also transfers to computer analysis.
Further, described hobboing cutter cutterhead comprises cutter head structure body, some hobboing cutter casees and some hobboing cutter cutters; Described cutter head structure body is fixed on the front end of described development machine, and described hobboing cutter case is fixedly welded on this cutter head structure body, and described hobboing cutter cutter is installed on respectively in this hobboing cutter case one by one.
Further, described structure of steel die body is as the subjects of described hobboing cutter Tool in Cutting, and this structure of steel die body comprises punching block, polylith bulk stone material, grouting material and rubble; Described polylith bulk stone material is fan-shaped, the inner chamber that it is spliced into annular and is placed in described punching block, gap between the block of each bulk stone material is by described rubble and described grouting material filling, and described polylith bulk stone material and the unconfined compressive strength value of rubble are identical with the unconfined compressive strength of project objective building stones value.
Further, described polylith bulk stone material is the fan-shaped large stone material of being taken back by working-yard, and described rubble is the fritter rubble material identical with described bulk stone material material of being taken back by working-yard.
Further, the cutting movement direction of described hobboing cutter cutter is horizontal or vertical.
The utlity model has following advantage:
1. described in, testing table can carry out the comprehensive cutting test of horizontal direction and vertical direction, and test findings fiduciary level is high;
2. rational in infrastructure, simple, adjustable is strong;
3. applied widely, in structure of steel die body, can fill weak soil or the rock of any intensity of any type, cutting object is simple and easy to get;
4. test findings degree of accuracy is high, can directly use and working-yard environment;
5. fast, reliably, safety coefficient is high in test.
In a word, the utlity model has simple in structure, performance comprehensively, the high and accurate advantage of experimental result of strong adaptability, reduction degree.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model hobboing cutter cutterhead.
Fig. 3 is the A-A cut-open view of Fig. 2.
Fig. 4 is the structural representation of the utility model structure of steel die body.
Fig. 5 is the B-B sectional view of Fig. 4.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Refer to Fig. 1, diagram shield structure hobboing cutter testing table comprises structure of steel die body fulcrum arrangement 1, structure of steel die body 2, hobboing cutter cutterhead 3, development machine 4, pull bar 5, main jacking mechanism 6, data acquisition processing system 7 and hydraulic system 8.
Described development machine 4 is by described pull bar 5 and described structure of steel die body fulcrum arrangement 1 level connection joint.Described structure of steel die body 2 is mounted on described structure of steel die body fulcrum arrangement 1, as the object of described hobboing cutter cutterhead 3 test cuttings.Described hobboing cutter cutterhead 3 is by being welded and fixed the front end that is installed on described development machine 4, and relative with this structure of steel die body 2.Described main jacking mechanism 6 is connected in the rear end of described development machine 4.Described hydraulic system 8 connects this main jacking mechanism 6, and drives this main jacking mechanism 6 and then advance described development machine 4 to carry out horizontal shift.Described data acquisition processing system 7 acquisition test parameters also transfer to computer analysis.
Incorporated by reference to consulting Fig. 2 and Fig. 3, described hobboing cutter cutterhead 3 comprises cutter head structure body 3.1, some hobboing cutter casees 3.3 and some hobboing cutter cutters 3.2.Described cutter head structure body 3.1 is fixed on the front end of described development machine 4, becomes one in this development machine 4; Described hobboing cutter case 3.3 is fixedly welded on this cutter head structure body 3.1; Each hobboing cutter cutter 3.2 is installed on respectively in each hobboing cutter case 3.3 correspondingly, and its blade exposes the front end of described hobboing cutter cutterhead 3, and the cutting movement direction of described hobboing cutter cutter 3.2 is horizontal or vertical.
Incorporated by reference to consulting Fig. 4 and Fig. 5, in described structure of steel die body 2, be filled with building stones, the subjects of cutting as described hobboing cutter cutter 3.2.This structure of steel die body 2 comprises punching block 2.1, polylith bulk stone material 2.2, grouting material 2.3 and rubble 2.4.Described polylith bulk stone material 2.2 is fan-shaped, it is spliced into annular and is placed in the inner chamber of described punching block 2.1, gap between the block of each bulk stone material 2.2 is by described rubble 2.4 and 2.3 fillings of described grouting material, and the unconfined compressive strength value of described polylith bulk stone material 2.2 and rubble 2.4 is identical with the unconfined compressive strength of project under construction target building stones value; In order to reach this point, described polylith bulk stone material 2.2 can be the fan-shaped large stone material of being taken back by working-yard, and described rubble 2.4 can be the fritter rubble material identical with described bulk stone material 2.2 materials of being taken back by working-yard.
The procedure declaration that adopts the utility model to test is as follows.
First in punching block 2.1, insert rubble 2.4 and bulk stone material 2.2, in building stones gap, fill high-strength adhesive grouting material 2.3.Grouting material 2.3 carries out mixing according to the ratio of 4kg water/25kg grouting material, newly mixes slurries at every turn and should carry out sample, for test slurry physical property.Before filling grout 2.3, first apart from the good altitude line of mortar plane 18cm place mark (being drawn on bulk stone material 2.2), unnecessary rubble 2.4 is filled at gap location, not higher than 15cm for the first time; Then be in the milk to 15cm place.In the time that approaching initial set, the grouting material 2.3 having injected can start filling for the second time; Smear and fill out quick hardening cement at adjacent bulk stone material 2.2 seam crossings, while preventing slip casting, grouting material 2.3 spills; Between stone, filling mortar is to equal with bulk stone material 2.2 upper surfaces, until mortar solidifies completely.After treating that grouting material 2.3 pours into 7 days and solidifies, measure the intensity of grouting material 2.3 material test blocks, after intensity reaches requirement, can start test.
Here it should be noted that, the ratio of above-mentioned grouting material 2.3 and twice grouting highly all can be adjusted according to reality is required, are not limited to above-mentioned value.
Described cutter head structure body 3.1 is through surface treatment, and 4 hobboing cutter casees 3.3 of welded and installed and hobboing cutter cutter 3.2; Hobboing cutter cutter 3.2 is installed according to tool assembly figure, should notice that installation direction is correct, bolt-locking.Adopt driving that hobboing cutter case 3.3 is hung and delivers to cutter head structure body 3.1 places, while cutter head structure body 3.1 turns to correct position and welds, and 3.3 welding of hobboing cutter case adopt 25mm groove weldings, and location is by design proposal enforcement.
Here it should be noted that, the welding of above-mentioned hobboing cutter case 3.3 all can be adjusted according to reality is required, is not limited to above-mentioned value.
Process of the test is divided three operating modes, and official test process divides three operating modes to cut.
First operating mode, adopts less, the low cutterhead rotating speed of pile penetration, low fltting speed to cut, thereby investigates propulsive parameter and the rock breaking efficiency of slow cutting.
Second operating mode, adopts moderate pile penetration, higher cutterhead rotating speed, higher fltting speed to cut, identical with the better pile penetration of general 100MPa left and right hard rock experience.
The 3rd operating mode, adopts larger pile penetration, moderate cutterhead rotating speed, moderate fltting speed to cut, and investigates the rock breaking efficiency of larger pile penetration.
It is pointed out that when the utility model completes test, by collection Monitoring Data to perform an analysis, to carry out the design of further cutterhead design, site operation tissue or construction parameter adjustment.Monitoring main contents comprise:
1) physical propertys such as mixing is good grouting material intensity, proportion, setting time;
2) required time such as grouting and propelling cutting;
3) ballast grain sizes that cutting is dropped;
4) hobboing cutter depth of penetration;
5) shield machine boring parameter, comprising:
A, gross thrust;
B, cutterhead rotating speed;
C, fltting speed;
D, cutterhead moment of torsion.
Claims (5)
1. a shield structure hobboing cutter testing table, is characterized in that: described testing table comprises: structure of steel die body fulcrum arrangement, structure of steel die body, hobboing cutter cutterhead, development machine, pull bar, main jacking mechanism, data acquisition processing system and hydraulic system; Described development machine is by described pull bar and described structure of steel die body fulcrum arrangement level connection joint, described structure of steel die body is mounted on described structure of steel die body fulcrum arrangement, and described hobboing cutter cutterhead is fixedly welded on the front end of described development machine and relative with this structure of steel die body; Described main jacking mechanism is connected in the rear end of described development machine, described hydraulic system connects this main jacking mechanism and drives this main jacking mechanism to advance described development machine to carry out horizontal shift, and described data acquisition processing system acquisition test parameter also transfers to computer analysis.
2. shield structure hobboing cutter testing table according to claim 1, is characterized in that: described hobboing cutter cutterhead comprises cutter head structure body, some hobboing cutter casees and some hobboing cutter cutters; Described cutter head structure body is fixed on the front end of described development machine, and described hobboing cutter case is fixedly welded on this cutter head structure body, and described hobboing cutter cutter is installed on respectively in this hobboing cutter case one by one.
3. shield structure hobboing cutter testing table according to claim 2, is characterized in that: described structure of steel die body is as the subjects of described hobboing cutter Tool in Cutting, and this structure of steel die body comprises punching block, polylith bulk stone material, grouting material and rubble; Described polylith bulk stone material is fan-shaped, the inner chamber that it is spliced into annular and is placed in described punching block, gap between the block of each bulk stone material is by described rubble and described grouting material filling, and described polylith bulk stone material and the unconfined compressive strength value of rubble are identical with the unconfined compressive strength of project objective building stones value.
4. shield structure hobboing cutter testing table according to claim 1, is characterized in that: described polylith bulk stone material is the fan-shaped large stone material of being taken back by working-yard, and described rubble is the fritter rubble material identical with described bulk stone material material of being taken back by working-yard.
5. according to the shield structure hobboing cutter testing table described in claim 1 or 3, it is characterized in that: the cutting movement direction of described hobboing cutter cutter is horizontal or vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870266.2U CN203658036U (en) | 2013-12-26 | 2013-12-26 | Shield hob test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870266.2U CN203658036U (en) | 2013-12-26 | 2013-12-26 | Shield hob test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658036U true CN203658036U (en) | 2014-06-18 |
Family
ID=50924413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320870266.2U Expired - Lifetime CN203658036U (en) | 2013-12-26 | 2013-12-26 | Shield hob test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203658036U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165058A (en) * | 2014-07-30 | 2014-11-26 | 浙江大学 | Device for simulating geological environment in TBM tunneling process |
| CN106500978A (en) * | 2016-11-02 | 2017-03-15 | 中国电建集团成都勘测设计研究院有限公司 | Fragmented rock body reaction torque simulation test device during TBM cutterhead card machines |
| CN111397815A (en) * | 2020-04-21 | 2020-07-10 | 上海隧道工程有限公司 | Cutter head driving sealing test bed |
-
2013
- 2013-12-26 CN CN201320870266.2U patent/CN203658036U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165058A (en) * | 2014-07-30 | 2014-11-26 | 浙江大学 | Device for simulating geological environment in TBM tunneling process |
| CN106500978A (en) * | 2016-11-02 | 2017-03-15 | 中国电建集团成都勘测设计研究院有限公司 | Fragmented rock body reaction torque simulation test device during TBM cutterhead card machines |
| CN106500978B (en) * | 2016-11-02 | 2019-02-15 | 中国电建集团成都勘测设计研究院有限公司 | Fragmented rock body reaction torque simulation test device when TBM cutterhead card machine |
| CN111397815A (en) * | 2020-04-21 | 2020-07-10 | 上海隧道工程有限公司 | Cutter head driving sealing test bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI TUNNEL ENGINEERING CO., LTD. Free format text: FORMER OWNER: SHANGHAI TUNNEL ENGINEERING CO LTD Effective date: 20150121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200082 TO: 200232 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150121 Address after: 200232 Shanghai Wanping Road No. 1099 Co-patentee after: Shanghai Urban Construction (Group) Corp. Patentee after: SHANGHAI TUNNEL ENGINEERING Co.,Ltd. Co-patentee after: SHANGHAI DUNGOU DESIGN EXPERIMENTAL RESEARCH CENTER Co.,Ltd. Address before: 200082 No. 118, Dalian Road, Shanghai, Yangpu District Co-patentee before: Shanghai Urban Construction (Group) Corp. Patentee before: SHANGHAI TUNNEL ENGINEERING Co.,Ltd. Co-patentee before: SHANGHAI DUNGOU DESIGN EXPERIMENTAL RESEARCH CENTER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |