CN202768008U - Three-degree-of-freedom self-walking mini-type shield mechanism - Google Patents
Three-degree-of-freedom self-walking mini-type shield mechanism Download PDFInfo
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- CN202768008U CN202768008U CN 201220439730 CN201220439730U CN202768008U CN 202768008 U CN202768008 U CN 202768008U CN 201220439730 CN201220439730 CN 201220439730 CN 201220439730 U CN201220439730 U CN 201220439730U CN 202768008 U CN202768008 U CN 202768008U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002365 multiple layer Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000003245 coal Substances 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 41
- 238000000605 extraction Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 235000010585 Ammi visnaga Nutrition 0.000 description 2
- 244000153158 Ammi visnaga Species 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a three-degree-of-freedom self-walking mini-type shield mechanism which comprises a cutting head, a drive motor, a propelling oil cylinder, a supporting oil cylinder, a spiral conveyer, an inner support frame, an outer support frame, a hydraulic valve bank and a shield. The cutting head adopts pick-shaped teeth cutting and achieves three-degree-of-freedom rotary cutting through an adjusting oil cylinder; a rock crush principle is as follows: coal rocks are subjected to crushing treatment through the pick-shaped teeth cutting and a secondary crushing mechanism by adopting a secondary crushing technology; a propelling system adopts two double-acting oil cylinders, a supporting and obstructing system adopts cross type double-acting oil cylinders, and rear support-front propelling and front support-rear contraction type stepping walking is achieved through the control of a hydraulic system; a deslagging mode is as follows: slag and muddy water are conveyed into a conveying pipe by adopting the spiral conveyer, and deslagging is carried out by combining with negative pressure suction. The three-degree-of-freedom self-walking mini-type shield machine has the advantages that directional control and large curvature radius curve walking are achieved; slant stagger of a drill hole is prevented; autonomous walking of the shield machine is achieved; long-distance hole drilling is ensured; and the problem of difficult deslagging of a pipe jacking technology is solved, and therefore, gas is more sufficiently discharged.
Description
Technical field
The utility model relates to Three Degree Of Freedom self-traveling mini shield machine, is particularly useful for coal seam length apart from the boring of gas drainage under suction.
Background technology
China's mine gas drainage amount only accounts for 20% of whole outburst amounts that draw out methane at present, and China's mine gas drainage technology mainly contains: (take out in advance) extraction before the digging, Bian Caibian takes out and adopt rear extraction (goaf extraction).Equipment commonly used is gas drainage drilling rig, adopt pipe-jacking technology to set up gas channel and give off gas, but this long drilled holes pore-forming equipment and controlled directional drilling process are " bottlenecks " of gas drainage under suction always, the existing technology of drilling does not have supporting with it special-purpose lead bit and the effective directed measure of control, be mainly manifested in pumping volume few, become porosity low, the mine sucrose extraction is low, boring length is not long, and comprehensive extraction work is poor.Therefore the improvement of gas drainage under suction equipment has become problem demanding prompt solution with raising.From development trend both domestic and external, the concordant boring that speed of application is fast, cost is low, the borehole engineering utilization rate is high will substitute the technical way that layer-through drilling becomes coal bed gas drainage gradually.
Summary of the invention
Technical problem: the purpose of this utility model is the problem that exists for prior art, provide a kind of compact conformation, directional drilling easily, realize that speed of application is fast, cost is low, the borehole engineering utilization rate is high, improve the Three Degree Of Freedom self-traveling mini shield machine of the amount of drawing out methane.
Technical scheme: the utility model Three Degree Of Freedom self-traveling mini shield machine, comprise anterior shield, the middle shield that cooperates with the anterior shield sliding sleeve, be provided with in the anterior shield and be I-shaped inner support, be provided with the support arm that links to each other with inner support in the middle shield, the front end of inner support is provided with hydraulic motor, the front portion of hydraulic motor is provided with the shield machine cutterhead, be provided with second-time breakage mechanism between hydraulic motor and the shield machine cutterhead, the middle part of inner support is arranged with the external front support oil cylinder of extended anterior shield, bilateral symmetry is provided with propelling cylinder about between the rear end of inner support and the support arm, is arranged with the external rear support oil cylinder of extended middle shield on the support arm; The front side that is positioned at inner support in the anterior shield is provided with water sending device, rear side is provided with conveying worm; The rear portion of middle shield is provided with hydraulic valve bank, and the rear end of middle shield is provided with the tail shield.
The position of described front support oil cylinder and rear support oil cylinder is right-angled intersection and arranges; The top of described front support oil cylinder and rear support oil cylinder is equipped with the support boots; Be connected with three on the described shield machine cutterhead and realize that the shield machine cutterhead becomes the angle adjustment oil cylinder of Three Degree Of Freedom rotation cut; Described second-time breakage mechanism is made of the antifriction alloy gauze wire cloth that multiple-layer stacked consists of paliform together.
Beneficial effect: owing to having adopted technique scheme, utilize four supporting oil cylinder support resistances, can realize two-stage self-walking shield driving, need not the jacking of pipeline.The pressure that each angle adjustment oil cylinder carries out is separately controlled, can be changed the oil cylinder collapsing length, realize orientation control and the curve walking of shield machine, prevent that effectively the deviational survey of holing is staggered, can make the more abundant of drawing-off gas.For the discharging of residue, adopt the mode of conveying worm and negative pressure suction, solved the not problem of deslagging of pipe-jacking technology.The utility model all adopts hydraulically powered mode, the rotation of fluid motor-driven cutterhead, propelling hydraulic cylinder and support cylinder are responsible for stepping and are supported, carry out synchronous or asynchronous control by hydraulic system, realize the two-segment type stepping walking of " rear support-front propelling, the front support-after-contraction " of shield machine.Conveying worm is responsible for draining slag, has solved the difficult problem of the boring directional drilling that boring length is not long in the gas drainage under suction in the prior art, the extraction rate is not high, has realized that speed of application is fast, cost is low, the borehole engineering utilization rate is high, the purpose that the efficient that draws out methane is high.Its simple and compact for structure, working stability can realize that the large length of high pulling torque, high rotating speed, propulsive force is apart from horizontal drilling.
Description of drawings
Fig. 1 is that Three Degree Of Freedom is from walking micro type shield machine sectional view;
Fig. 2 is the longitudinal sectional view of Fig. 1;
Fig. 3, Fig. 4 are the partial enlarged view of Fig. 1.
Among the figure: 1-shield machine cutterhead; 2-second-time breakage mechanism; 3-angle adjustment oil cylinder; The 4-hydraulic motor; 5-front support oil cylinder; The 6-inner support; The 7-propelling cylinder; The 8-support arm; The 9-hydraulic valve bank; The 10-water sending device; The 11-conveying worm; The 12-anterior shield; 13-rear support oil cylinder; Shield among the 14-; 15-tail shield.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Three Degree Of Freedom self-traveling mini shield machine of the present utility model mainly is made of shield machine cutterhead 1, second-time breakage mechanism 2, angle adjustment oil cylinder 3, hydraulic motor 4, front support oil cylinder 5, inner support 6, propelling cylinder 7, support arm 8, hydraulic valve bank 9, water sending device 10, conveying worm 11, anterior shield 12, rear support oil cylinder 13, middle shield 14, tail shield 15.Anterior shield 12 cooperates with middle shield 14 sliding sleeves, anterior shield 12 interior settings are I-shaped inner support 6, the support arm 8 that middle shield 14 interior settings link to each other with inner support 6, the front end of inner support 6 arranges hydraulic motor 4, the front portion of hydraulic motor 4 arranges shield machine cutterhead 1, connects three angle adjustment oil cylinders 3 on the shield machine cutterhead 1; Described shield machine cutterhead 1 is controlled by hydraulic motor 4, and realizes shield machine cutterheads 1 Three Degree Of Freedom rotation cut by angle adjustment oil cylinder 3.Between hydraulic motor 4 and the shield machine cutterhead 1 second-time breakage mechanism 2 is set, second-time breakage mechanism 2 is made of the antifriction alloy gauze wire cloth that multiple-layer stacked consists of paliform together.The middle part of inner support 6 is arranged with the external front support oil cylinder 5 of extended anterior shield 12, bilateral symmetry is provided with two double-acting propelling cylinders 7 about between the rear end of inner support 6 and the support arm 8, be symmetrical arranged the external double-acting rear support oil cylinder 13 of two extended middle shields 14 on the support arm 8, described front support oil cylinder 5 is right-angled intersection with rear support oil cylinder 13 positions to be arranged, and front support oil cylinder 5 is equipped with the support boots with the top of rear support oil cylinder 13; The front side that is positioned at inner support 6 in the anterior shield 12 is provided with water sending device 10, rear side is provided with conveying worm 11; The rear portion of middle shield 14 is provided with hydraulic valve bank 9, and the rear end of middle shield 14 is provided with tail shield 15.Propelling cylinder 7 is the propulsion plant of Three Degree Of Freedom self-traveling mini shield machine, when the support boots of rear support oil cylinder 13 stretch out when withstanding petrosal foramen, propelling cylinder 7 is pushed ahead, promoting anterior shield 12 moves forward, when the support boots that support front support oil cylinder 5 stretch out when withstanding petrosal foramen, the retraction of propelling cylinder 7 is realized the stepping walking of two-segment type.Described hydraulic valve bank 9 all adopts the cartridge valve group, because the spatial limitation of shield machine, cartridge valve is installed in the afterbody of shield machine by the work of valve piece interaction, hydraulic pump then is installed in the outside, external two oil-way pipes in back are supplied with the required pressure oils of hydraulic work system such as hydraulic motor 4, propelling cylinder 7, front support oil cylinder 5 and rear support oil cylinder 13, by shield machine in tow high-pressure oil pipe carry out work.Described water sending device 10 and conveying worm 11 are the slagging device of Three Degree Of Freedom self-traveling mini shield machine, utilize the abundant advantage of water resource under the ore deposit, water filling in the crushing chamber, utilize mud hydraulic pressure to come ambient pressure in the balance shield machine rock stratum of living in, by conveying worm 11 muddy water that has mixed slag is transported to the carrier pipe from crushing chamber simultaneously, the mode in conjunction with the negative pressure suction discharges it again.Described anterior shield 12, middle shield 14, tail shield 15 and inner support 6 and support arm 8 form the shield structure body of whole system.Shield machine cutterhead 1 is the pick tooth cutting means of hydraulic motor 4 controls, and Three Degree Of Freedom is 510mm from the cut diameter of the miniature shield machine of walking, and aperture opening ratio is 38.1%.
Operating principle and the course of work: at first the pick tooth by shield machine cutterhead 1 carries out primary fragmentation to the coal seam rock, then carries out second-time breakage by the detritus after the 2 pairs of fragmentations of second-time breakage mechanism that are located at behind the shield machine cutterhead 1.Adopt two double acting propelling cylinders 7 to consist of propulsion system, adopt right-angled intersection formula two-way cylinder front support oil cylinder 5 and rear support oil cylinder 13 to consist of support resistance system, realize the concentrated hydraulic control of shield machine by hydraulic valve bank 9, adopt conveying worm 11 and the negative pressure deslagging water pumper that is connected in parallel in the drain line, unite deslagging in the discharge pipe exit.Described negative pressure deslagging is the principle of utilizing cross-ventilation, negative pressure ventilation, thereby produces negative pressure by the infield inhale fresh air, to the certain negative pressure of tunnel generation of driving, so that waste residue is sucked out.The negative pressure deslagging is the preferably deslagging mode of drilling at outstanding or weak seam.Described shield machine cutterhead 1 adopts the slow-revving hydraulic motor 4 of high pulling torque, 70r/min of 1800Nm to rotatablely move by the direct driving shield machine of shaft coupling cutterhead 1.Three angle adjustment oil cylinders, the 3 control cutterhead directions of advance that circumferentially are arranged symmetrically with are adjusted shield machine cutterhead 1 in the rotation of different azimuth according to the difference of angle adjustment oil cylinder 3 collapsing lengths, realize the rotation of Three Degree Of Freedom.Shield machine cutterhead 1 and hydraulic motor 4 are as a whole, by the orientation of three angle adjustment oil cylinders, 3 control shield machine cutterheads 1.Because shield machine cutterhead 1 and hydraulic motor 4 are integrated, compact conformation, hydraulic motor 4 are variations that angle occurs together along with shield machine cutterhead 1, have realized that shield machine cutterhead 1 constantly stirs while rotating, and helps breaking ores.Described angle adjustment oil cylinder 3 is the angular adjustment apparatus of Three Degree Of Freedom self-traveling mini shield machine, and three angle adjustment oil cylinders 3 adopt the ball-joint connected mode to link to each other with the shield machine head, can realize that the inclination of certain angle also can be finely tuned the trend of shield machine.Described hydraulic motor 4 is the main power source of Three Degree Of Freedom self-traveling mini shield machine cutterhead 1, rotatablely moves by hydraulic valve bank 9 control driving shield machine cutterheads 1.Described supporting oil cylinder comprises that front support oil cylinder 5 and rear support oil cylinder 13 are the self-propelling device of Three Degree Of Freedom self-traveling mini shield machine, locate with four two-way cylinder support resistances that right-angled intersection is arranged, the support boots head in the ore, advance required counter-force to provide.By the independent control to the front and back supporting oil cylinder, realize the stepping walking of two-segment type.
Claims (5)
1. Three Degree Of Freedom self-traveling mini shield machine, it is characterized in that: it comprises anterior shield (12), the middle shield (14) that cooperates with anterior shield (12) sliding sleeve, be provided with in the anterior shield (12) and be I-shaped inner support (6), be provided with the support arm (8) that links to each other with inner support (6) in the middle shield (14), the front end of inner support (6) is provided with hydraulic motor (4), the front portion of hydraulic motor (4) is provided with shield machine cutterhead (1), be provided with second-time breakage mechanism (2) between hydraulic motor (4) and the shield machine cutterhead (1), the middle part of inner support (6) is arranged with the external front support oil cylinder (5) of extended anterior shield (12), bilateral symmetry is provided with propelling cylinder (7) about between the rear end of inner support (6) and the support arm (8), is arranged with the external rear support oil cylinder (13) of extended middle shield (14) on the support arm (8); The front side that is positioned at inner support (6) in the anterior shield (12) is provided with water sending device (10), rear side is provided with conveying worm (11); The rear portion of middle shield (14) is provided with hydraulic valve bank (9), and the rear end of middle shield (14) is provided with tail shield (15).
2. Three Degree Of Freedom self-traveling mini shield machine according to claim 1 is characterized in that: the position of described front support oil cylinder (5) and rear support oil cylinder (13) is right-angled intersection and arranges.
3. Three Degree Of Freedom self-traveling mini shield machine according to claim 1 and 2 is characterized in that: described front support oil cylinder (5) is equipped with the support boots with the top of rear support oil cylinder (13).
4. Three Degree Of Freedom self-traveling mini shield machine according to claim 1 is characterized in that: be connected with three on the described shield machine cutterhead (1) and realize that shield machine cutterhead (1) becomes the angle adjustment oil cylinder (3) of Three Degree Of Freedom rotation cut.
5. Three Degree Of Freedom self-traveling mini shield machine according to claim 1, it is characterized in that: described second-time breakage mechanism (2) is made of the antifriction alloy gauze wire cloth that multiple-layer stacked consists of paliform together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220439730 CN202768008U (en) | 2012-08-31 | 2012-08-31 | Three-degree-of-freedom self-walking mini-type shield mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220439730 CN202768008U (en) | 2012-08-31 | 2012-08-31 | Three-degree-of-freedom self-walking mini-type shield mechanism |
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| Publication Number | Publication Date |
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| CN202768008U true CN202768008U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220439730 Expired - Lifetime CN202768008U (en) | 2012-08-31 | 2012-08-31 | Three-degree-of-freedom self-walking mini-type shield mechanism |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797474A (en) * | 2012-08-31 | 2012-11-28 | 中国矿业大学 | Three-degree-of-freedom self-walking minitype shield machine |
| CN108643927A (en) * | 2018-03-23 | 2018-10-12 | 岩土科技股份有限公司 | Soil body shuttle machine |
| CN109899080A (en) * | 2019-04-11 | 2019-06-18 | 中铁工程装备集团有限公司 | A kind of miniature push pipe formula development machine |
| CN110486031A (en) * | 2019-09-27 | 2019-11-22 | 大连理工大学 | A kind of underground big cross section rescue channel push pipe fast construction method |
| CN110671120A (en) * | 2019-10-28 | 2020-01-10 | 煤科集团沈阳研究院有限公司 | Open-type outer shield tunneling device and collapse roadway tunneling method |
-
2012
- 2012-08-31 CN CN 201220439730 patent/CN202768008U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797474A (en) * | 2012-08-31 | 2012-11-28 | 中国矿业大学 | Three-degree-of-freedom self-walking minitype shield machine |
| CN102797474B (en) * | 2012-08-31 | 2014-04-16 | 中国矿业大学 | Three-degree-of-freedom self-walking minitype shield machine |
| CN108643927A (en) * | 2018-03-23 | 2018-10-12 | 岩土科技股份有限公司 | Soil body shuttle machine |
| CN109899080A (en) * | 2019-04-11 | 2019-06-18 | 中铁工程装备集团有限公司 | A kind of miniature push pipe formula development machine |
| CN110486031A (en) * | 2019-09-27 | 2019-11-22 | 大连理工大学 | A kind of underground big cross section rescue channel push pipe fast construction method |
| CN110486031B (en) * | 2019-09-27 | 2020-09-29 | 大连理工大学 | Rapid construction method for underground large-section rescue channel jacking pipe |
| US11008861B2 (en) | 2019-09-27 | 2021-05-18 | Dalian University Of Technology | Rapid construction method of pipe jacking for underground rescue tunnel with large section |
| CN110671120A (en) * | 2019-10-28 | 2020-01-10 | 煤科集团沈阳研究院有限公司 | Open-type outer shield tunneling device and collapse roadway tunneling method |
| CN110671120B (en) * | 2019-10-28 | 2024-03-29 | 中煤科工集团沈阳研究院有限公司 | Open type outer shield tunneling device and collapse roadway tunneling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20140416 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20140416 |
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| RGAV | Abandon patent right to avoid regrant |