CN102953729B - Cutting mechanism for multi-arm hob-type continuous tunneling machine - Google Patents
Cutting mechanism for multi-arm hob-type continuous tunneling machine Download PDFInfo
- Publication number
- CN102953729B CN102953729B CN201210420355.7A CN201210420355A CN102953729B CN 102953729 B CN102953729 B CN 102953729B CN 201210420355 A CN201210420355 A CN 201210420355A CN 102953729 B CN102953729 B CN 102953729B
- Authority
- CN
- China
- Prior art keywords
- arm
- outward turning
- inner ring
- tunneling machine
- cutting mechanism
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of cutting mechanism of tunneling machine, particularly provides a cutting mechanism for a multi-arm hob-type continuous tunneling machine, and solves the problems of an existing cutting mechanism of a continuous tunneling machine, such as unsuitability for hard rock tunnel and low rock breaking efficiency. The cutting mechanism comprises a slewing bearing, three outer rotation arms, an inner rotation arm, a disc hob and a swinging cylinder. The slewing bearing comprises an inner ring and an outer ring; the outer ring is fixed on a frame of the tunneling machine; the inner ring is connected to a motor output shaft of the tunneling machine; and outer rotation arms and the inner rotation arm are hinged to the inner ring through pins. The invention has beneficial effects of solving problems of weak rock breaking effect and low production efficiency of a longitudinal tunneling machine, reducing dust generation, improving cutting efficiency, and realizing forming of different section contours.
Description
Technical field
The invention belongs to the technical field of cutting mechanism for heading machine, be specifically related to a kind of cutting mechanism for multi-arm hob type continuous digging machine.
Background technology
Existing cutting mechanism for heading machine is mainly longitudinal axis formula and horizontal shaft type, cutter used on cutting mechanism is pick-like bit, the operating principle of pick-like bit as pick glut as rock mass, the compressive strength of the rock mainly overcome, because the compressive strength of rock is much larger than its tensile strength, therefore current cutting form causes specific energy consumption high, and less to the applicability of hard-rock tunnel cut, efficiency of breaking rock is low.
Summary of the invention
Goal of the invention of the present invention: can not hard-rock tunnel be applicable to, the problem that efficiency of breaking rock is low to solve existing cutting mechanism for heading machine.
The present invention adopts following technical scheme to realize:
A kind of cutting mechanism for multi-arm hob type continuous digging machine, comprise pivoting support, three outward turning pivoted arms, an interior turning arm, disk cutter and oscillating oil cylinder, described pivoting support comprises inner ring and outer ring, outer ring is fixed in the frame of development machine, inner ring is installed with the motor output shaft of development machine and is connected, each outward turning pivoted arm and interior turning arm by hinge on inner ring, three outward turning pivoted arms and the pin joint of inner ring be arranged in inner ring circumferentially and three outward turning pivoted arms are equal to the distance of the inner ring centre of gyration with the pin joint of inner ring, wherein the first outward turning pivoted arm becomes 180 degree of angles to be arranged symmetrically with the second outward turning pivoted arm, 3rd outward turning pivoted arm is arranged on the perpendicular bisector of the first outward turning pivoted arm and the second outward turning pivoted arm pin joint line, interior turning arm is arranged in the center of the first outward turning pivoted arm and the 3rd outward turning pivoted arm pin joint line, three outward turning pivoted arms and interior turning arm connect an oscillating oil cylinder respectively, the oil cylinder seat of each oscillating oil cylinder is also arranged on the inner ring of pivoting support, the slewing area of three outward turning pivoted arms is inside 10 degree, outside 145 degree, the slewing area of interior turning arm is 30 degree, left and right.
Above-mentioned " inwardly " refers to the pivot of outward turning pivoted arm to pivoting support, and " outwards " rotation refers to the pivot of outward turning pivoted arm away from pivoting support." left and right " is relative to the perpendicular bisector of the first outward turning pivoted arm and the 3rd outward turning pivoted arm two outward turning pivoted arm pin joint lines.
In cutting course, each turning arm rotates with pivoting support inner ring, but also can by the flexible cut realizing different radii of oscillating oil cylinder, wherein three outward turning pivoted arms from inside to outside cut (disk cutter on outward turning pivoted arm swings to position farthest gradually from apart from going back to nearest position, bearing and turning center, namely away from the pivoting support centre of gyration), interior turning arm from outside to inside cut (disk cutter on interior turning arm from apart from return position farthest, bearing and turning center swing to nearest position gradually, namely close to the pivoting support centre of gyration), therefore the movement locus of hobboing cutter is helix.
Hinge structure of the present invention has following beneficial effect:
1, multi-arm hob type structure is adopted first, rotate with circumference the cut realizing rock by the radially wobbling of turning arm be arranged on pivoting support, enhance the rock breaking efficiency of rock roadway in coal mine driving, improve operating efficiency, solve the problem that current Vertical Axis Road-header rock breaking efficiency is poor, production efficiency is low.
The tensile strength of what 2, hobboing cutter overcame in cutting course is rock but not compressive strength, reducing the consumption of energy, reduce the vibration of complete machine, increase the lumpiness of the rock under cut, because this reducing the generation of dust, improve cutting efficiency.
That 3, can pass through control turning arm radially wobbles angle and direction of rotation, can realize the shaping of different section profile.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
In figure: 1-first outward turning pivoted arm, 2-oscillating oil cylinder, 3-second outward turning pivoted arm, turning arm in 4-, 5-pivoting support, 6-disk cutter, 7-the 3rd outward turning pivoted arm.
Detailed description of the invention
As shown in Figure 1, for the cutting mechanism of multi-arm hob type continuous digging machine, it is characterized in that comprising pivoting support 5, three outward turning pivoted arms, an interior turning arm 4, disk cutter 6 and oscillating oil cylinder, described pivoting support 5 comprises inner ring and outer ring, outer ring is fixed in the frame of development machine, inner ring is installed with the motor output shaft of development machine and is connected, each outward turning pivoted arm and interior turning arm 4 by hinge on inner ring, three outward turning pivoted arms and the pin joint of inner ring be arranged in inner ring circumferentially and three outward turning pivoted arms are equal to the distance of the inner ring centre of gyration with the pin joint of inner ring, wherein the first outward turning pivoted arm 1 and the second outward turning pivoted arm 3 one-tenth 180 degree of angles are arranged symmetrically with, 3rd outward turning pivoted arm 7 is arranged on the perpendicular bisector of the first outward turning pivoted arm and the second outward turning pivoted arm pin joint line, interior turning arm 4 is arranged in the center of the first outward turning pivoted arm 1 and the 3rd outward turning pivoted arm 7 pin joint line, three outward turning pivoted arms and interior turning arm 4 connect an oscillating oil cylinder respectively, the oil cylinder seat of each oscillating oil cylinder is also arranged on the inner ring of pivoting support, the slewing area of three outward turning pivoted arms is inside 10 degree, outside 145 degree, the slewing area of interior turning arm 4 is 30 degree, left and right.
Claims (1)
1. the cutting mechanism for multi-arm hob type continuous digging machine, it is characterized in that comprising pivoting support (5), three outward turning pivoted arms, an interior turning arm (4), disk cutter (6) and oscillating oil cylinder, described pivoting support (5) comprises inner ring and outer ring, outer ring is fixed in the frame of development machine, inner ring is installed with the motor output shaft of development machine and is connected, each outward turning pivoted arm and interior turning arm (4) by hinge on inner ring, three outward turning pivoted arms and the pin joint of inner ring be arranged in inner ring circumferentially and three outward turning pivoted arms are equal to the distance of the inner ring centre of gyration with the pin joint of inner ring, wherein the first outward turning pivoted arm (1) becomes 180 degree of angles to be arranged symmetrically with the second outward turning pivoted arm (3), 3rd outward turning pivoted arm (7) is arranged on the perpendicular bisector of the first outward turning pivoted arm and the second outward turning pivoted arm pin joint line, interior turning arm (4) is arranged in the center of the first outward turning pivoted arm (1) and the 3rd outward turning pivoted arm (7) pin joint line, three outward turning pivoted arms and interior turning arm (4) connect an oscillating oil cylinder respectively, the oil cylinder seat of each oscillating oil cylinder is also arranged on the inner ring of pivoting support, the slewing area of three outward turning pivoted arms is inside 10 degree, outside 145 degree, the slewing area of interior turning arm (4) is 30 degree, left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210420355.7A CN102953729B (en) | 2012-10-29 | 2012-10-29 | Cutting mechanism for multi-arm hob-type continuous tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210420355.7A CN102953729B (en) | 2012-10-29 | 2012-10-29 | Cutting mechanism for multi-arm hob-type continuous tunneling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953729A CN102953729A (en) | 2013-03-06 |
| CN102953729B true CN102953729B (en) | 2015-07-08 |
Family
ID=47763058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210420355.7A Active CN102953729B (en) | 2012-10-29 | 2012-10-29 | Cutting mechanism for multi-arm hob-type continuous tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953729B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056363B (en) * | 2019-04-19 | 2020-06-02 | 中国矿业大学 | Hard rock tunnel boring machine with actively rotating hob |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB991569A (en) * | 1962-06-02 | 1965-05-12 | Mavor & Coulson Ltd | Improvements relating to cutter drums for mining coal and other minerals |
| US5295735A (en) * | 1992-06-10 | 1994-03-22 | Cobbs David C | Rock saw |
| CN102305067A (en) * | 2011-09-23 | 2012-01-04 | 李欣 | Development machine mechanism |
| CN102704927A (en) * | 2012-06-15 | 2012-10-03 | 马晓山 | Comprehensive mechanization stone drift heading machine set |
| CN102704928A (en) * | 2012-06-15 | 2012-10-03 | 马晓山 | Rotatable retractable cutting device for comprehensive mechanized stone head tunneling machine set |
| CN202882910U (en) * | 2012-10-29 | 2013-04-17 | 中国煤炭科工集团太原研究院 | Cutting mechanism for multi-arm hob type continuous digging machine |
-
2012
- 2012-10-29 CN CN201210420355.7A patent/CN102953729B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB991569A (en) * | 1962-06-02 | 1965-05-12 | Mavor & Coulson Ltd | Improvements relating to cutter drums for mining coal and other minerals |
| US5295735A (en) * | 1992-06-10 | 1994-03-22 | Cobbs David C | Rock saw |
| CN102305067A (en) * | 2011-09-23 | 2012-01-04 | 李欣 | Development machine mechanism |
| CN102704927A (en) * | 2012-06-15 | 2012-10-03 | 马晓山 | Comprehensive mechanization stone drift heading machine set |
| CN102704928A (en) * | 2012-06-15 | 2012-10-03 | 马晓山 | Rotatable retractable cutting device for comprehensive mechanized stone head tunneling machine set |
| CN202882910U (en) * | 2012-10-29 | 2013-04-17 | 中国煤炭科工集团太原研究院 | Cutting mechanism for multi-arm hob type continuous digging machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102953729A (en) | 2013-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105625439B (en) | The milling wheel and slotter of tooth are swung with radial type | |
| CN104533435A (en) | Oscillating cutter head type rectangular section tube push bench | |
| CN204343303U (en) | Milling wheel and the slotter of tooth is swung with radial type | |
| CN102953729B (en) | Cutting mechanism for multi-arm hob-type continuous tunneling machine | |
| CN104196543B (en) | A kind of cutter head of major diameter tunneling boring impact grinding hard rock | |
| CN204312078U (en) | A kind of swing cutter head type rectangular cross section push-bench | |
| CN202882910U (en) | Cutting mechanism for multi-arm hob type continuous digging machine | |
| CN201460887U (en) | Motor embedded coal mining machine | |
| CN105799737B (en) | Single-track turnout beam drive device | |
| CN111188615B (en) | Coal mining depth adjustable coal mining machine | |
| CN102287142B (en) | Drill arm device capable of rotating 360 degrees | |
| CN202325501U (en) | Short-wall large-mining height coal mining machine | |
| CN204544379U (en) | The reducing mechanism that a kind of colliery is special | |
| CN202202816U (en) | All-directional rotary drill arm device | |
| CN202690043U (en) | Swinging cutting mechanism of single-drum coal mining machine | |
| CN202247979U (en) | 2-1-2 type five-movement-degree spatial hydraulic excavator | |
| CN203879495U (en) | Cutting mechanism and development machine | |
| CN205297575U (en) | Tunnel machine for trimming is used in multi -functional colliery | |
| CN210164474U (en) | Multi-cutting-arm tunneling mechanism and tunneling machine | |
| CN109882181B (en) | Swing type variable-diameter enveloping forming full-section drilling tool | |
| CN202809671U (en) | Freestyle excavator | |
| CN202360030U (en) | Drilling tool capable of rotatably digging soil containing crushed cobblestones | |
| CN205296266U (en) | Rotary mechanism of excavator work arm | |
| CN103046927A (en) | Deflectable cutting device of coal mining machine | |
| CN208669316U (en) | A kind of cantilever excavator for carrying hobboing cutter broken rock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |