CN110552697A - Novel hard rock entry driving machine cutterhead - Google Patents
Novel hard rock entry driving machine cutterhead Download PDFInfo
- Publication number
- CN110552697A CN110552697A CN201910837258.XA CN201910837258A CN110552697A CN 110552697 A CN110552697 A CN 110552697A CN 201910837258 A CN201910837258 A CN 201910837258A CN 110552697 A CN110552697 A CN 110552697A
- Authority
- CN
- China
- Prior art keywords
- cutting
- hard rock
- cutting mechanism
- cutting head
- head mounting
- 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.)
- Withdrawn
Links
- 239000011435 rock Substances 0.000 title claims abstract description 35
- 238000005520 cutting process Methods 0.000 claims abstract description 95
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000005641 tunneling Effects 0.000 claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/08—Mountings for the rods or drums
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a novel cutting head of a hard rock heading machine, which comprises a cutting head mounting frame and a cutting mechanism; the cutting head mounting frame is arranged at the front end of a cutting arm of the cantilever type tunneling machine, is in matched connection with a power output shaft in the cutting arm through spline connection, and is provided with rotary motion through a planetary reducer by a cutting motor in the cutting arm; the cutting mechanism sets up to 3 groups at least, installs on the cutterhead mounting bracket along the circumference equipartition, and cutting mechanism includes cutting mechanism mount pad, platform shape inlay tooth hobbing cutter and toper inlay tooth hobbing cutter, and during broken rock, platform shape inlay tooth hobbing cutter and toper inlay tooth hobbing cutter that coaxial fixed mounting set up are whole because of the atress can be around axis passive rotation. This novel hard rock entry driving machine cutterhead can conveniently install effectively on boom type entry driving machine cutting arm, can accomplish entry driving machine drilling technology and yaw cutting process, and work efficiency is high, and hard rock tunnelling is effectual, effectively solves hard rock tunnel construction difficult, the slow problem of construction.
Description
Technical Field
The invention relates to a cutting head of a heading machine, in particular to a cutting head of a hard rock heading machine, belongs to rock breaking mechanical equipment, and is mainly used for tunneling engineering of tunnels or roadways.
Background
China is a large country for coal mining and consumption, and meanwhile, the requirements of China on the construction of basic facilities such as highways, railways, tunnel engineering, hydroelectric engineering and the like are continuously enhanced, and the engineering faces the tunneling of tunnels or roadways. In recent years, with the continuous reduction of the easy coal mining reserves in China, the requirement for exploiting the roadway depth is urgent, however, with the increase of the stratum depth, the geological conditions are more complicated, the rock hardness is continuously improved, the fault problem is continuously aggravated, and the construction quantity of hard rock roadways is continuously increased. For hard rock tunneling, the problems of high cost and low flexibility exist in the use of a shield tunneling machine, and the problems of difficult hard rock construction, slow construction and short service life of a cutting head exist in the use of a cantilever tunneling machine, so that the current situation that the blasting and tunneling workload is still large is caused, and therefore, the realization of the rapid mechanical tunneling of a hard rock tunnel becomes the problem to be solved urgently in coal mining engineering.
disclosure of Invention
The technical problem is as follows: aiming at the problems, the invention provides a novel hard rock heading machine cutting head which can be conveniently applied to a cantilever type heading machine, has good hard rock breaking effect and high working efficiency, can complete a drilling process and a horizontal swinging cutting process, and realizes the heading of the whole hard rock roadway.
The technical scheme is as follows: in order to achieve the purpose, the cutting head of the hard rock heading machine comprises a cutting head mounting frame and a cutting mechanism;
The cutting head mounting frame is arranged at the front end of a cutting arm of the boom-type roadheader, is in matched connection with a power output shaft in the cutting arm through spline connection, and is provided with rotary motion by a cutting motor in the cutting arm through a planetary reducer;
The cutting mechanisms are at least arranged into 3 groups and are uniformly arranged on the cutting head mounting frame along the circumference, and each cutting mechanism comprises a cutting mechanism mounting seat, a table-shaped insert hob and a conical insert hob; the cutting mechanism mounting seat is fixedly arranged on the cutting head mounting frame; the bench-shaped inserted hob and the conical inserted hob which are coaxially and fixedly installed are integrally erected and installed on the cutting mechanism installation seat in a rolling fit mode, conical wedge-shaped hard alloy cutting teeth are uniformly and fixedly arranged on the bench-shaped inserted hob and the conical inserted hob, and when rocks are broken, the bench-shaped inserted hob and the conical inserted hob which are coaxially and fixedly installed can integrally rotate around an axis passively due to stress.
Has the advantages that: the cutting head of the hard rock heading machine can effectively dig rock tunnels with hardness f larger than 10 by utilizing a hob rock breaking mechanism and cutting rocks by rolling, and the working efficiency is high; the cutting head can be effectively installed on the cutting arm of the cantilever type tunneling machine, is convenient and flexible to disassemble, and can be designed into different sizes according to different types of tunneling machines; this cutterhead comprises multiunit cutting mechanism, and every group cutting mechanism includes platform shape and toper inlay tooth hobbing cutter, and whole cutterhead is the toper, can realize boring technology and horizontal swing cutting technology high-efficiently to long service life, the pick wear rate is low.
Drawings
FIG. 1 is a three-dimensional structural view of the hard rock roadheader cutter head of the present invention mounted on the roadheader;
Figure 2 is a three-dimensional structural view of the cutting head mounting of the present invention;
Fig. 3 is a three-dimensional structure front view of the cutting head of the hard rock heading machine of the invention;
FIG. 4 is a left side view of the three-dimensional structure of the cutting head of the hard rock heading machine of the present invention;
FIG. 5 is a three-dimensional structural view of a cutting mechanism of a cutting head of the hard rock heading machine;
In the figure: 1. the hard rock heading machine comprises a cutting head 1-1, a cutting head mounting frame 1-1-1, a rib plate group 1-2, a cutting mechanism 1-2-1, a cutting mechanism mounting seat 1-2-2, a table-shaped inserted hob 1-2-3, a conical inserted hob 1-2-4, a conical wedge-shaped hard alloy cutting pick 2, a cantilever type heading machine 2-1 and a cutting arm.
Detailed Description
the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the cutting head 1 of the hard rock heading machine comprises a cutting head mounting frame 1-1 and a cutting mechanism 1-2.
the cutting head mounting rack 1-1 is mounted at the front end of a cutting arm 2-1 of the cantilever type heading machine 2, the cutting head mounting rack 1-1 is connected with a power output shaft in the cutting arm 2-1 in a matched manner through spline connection, and a cutting motor in the cutting arm 2-1 provides rotary motion through a planetary reducer;
The cutting mechanisms 1-2 are at least arranged into 3 groups and are uniformly arranged on the cutting head mounting rack 1-1 along the circumference, and the cutting mechanisms 1-2 comprise cutting mechanism mounting seats 1-2-1, table-shaped inserted hob cutters 1-2-2 and conical inserted hob cutters 1-2-3; the cutting mechanism mounting seat 1-2-1 is fixedly arranged on the cutting head mounting frame 1-1; the table-shaped inserted hob 1-2-2 and the conical inserted hob 1-2-3 which are coaxially and fixedly installed are integrally erected and installed on the cutting mechanism installation seat 1-2-1 in a rolling fit mode, conical wedge-shaped hard alloy cutting teeth 1-2-4 are fixedly and uniformly distributed on the table-shaped inserted hob 1-2-2 and the conical inserted hob 1-2-3, and when rocks are crushed, the table-shaped inserted hob 1-2-2 and the conical inserted hob 1-2-3 which are coaxially and fixedly installed can integrally rotate around an axis passively due to stress.
the cutting mechanism 1-2 inclines towards the central axis of the cutting head 1, so that the whole cutting head is conical, and the drilling process and the yaw cutting process can be completed.
The cutting head mounting frame 1-1 is welded with the ribbed plate group 1-1-1 at the position where the cutting mechanism 1-2 is mounted, so that the strength of the cutting head can be improved.
The cutting mechanisms 1-2 are arranged into 5 groups, so that the cutting efficiency can be improved.
Claims (4)
1. a novel hard rock heading machine cutting head (1) comprises a cutting head mounting rack (1-1) and a cutting mechanism (1-2), and is characterized in that,
The cutting head mounting rack (1-1) is mounted at the front end of a cutting arm (2-1) of the cantilever type tunneling machine (2), the cutting head mounting rack (1-1) is connected with a power output shaft in the cutting arm (2-1) in a matched mode through spline connection, and a cutting motor in the cutting arm (2-1) provides rotary motion through a planetary reducer;
the cutting mechanisms (1-2) are at least arranged into 3 groups and are uniformly arranged on the cutting head mounting rack (1-1) along the circumference, and the cutting mechanisms (1-2) comprise cutting mechanism mounting seats (1-2-1), table-shaped inserted hob cutters (1-2-2) and conical inserted hob cutters (1-2-3); the cutting mechanism mounting seat (1-2-1) is fixedly arranged on the cutting head mounting rack (1-1); the table-shaped inserted hob (1-2-2) and the conical inserted hob (1-2-3) which are coaxially and fixedly installed are integrally erected and installed on the cutting mechanism installation seat (1-2-1) in a rolling fit mode, conical wedge-shaped hard alloy cutting picks (1-2-4) are fixedly and uniformly distributed on the table-shaped inserted hob (1-2-2) and the conical inserted hob (1-2-3), and when rocks are crushed, the table-shaped inserted hob (1-2-2) and the conical inserted hob (1-2-3) which are coaxially and fixedly installed can rotate around an axis passively due to stress.
2. A new type hard rock heading machine cutter head according to claim 1, wherein the whole of the cutting mechanism (1-2) is tapered towards the central axis of the cutter head (1).
3. A novel hard rock heading machine cutter head according to claim 1 or 2, wherein the cutter head mounting frame (1-1) is welded with the rib plate group (1-1-1) at the position where the cutter mechanism (1-2) is mounted, so as to improve the strength of the cutter head.
4. A new type of hard rock ripper cutter head according to claim 1 or 2, characterized in that the cutting mechanisms (1-2) are arranged in 5 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837258.XA CN110552697A (en) | 2019-09-05 | 2019-09-05 | Novel hard rock entry driving machine cutterhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837258.XA CN110552697A (en) | 2019-09-05 | 2019-09-05 | Novel hard rock entry driving machine cutterhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110552697A true CN110552697A (en) | 2019-12-10 |
Family
ID=68739218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910837258.XA Withdrawn CN110552697A (en) | 2019-09-05 | 2019-09-05 | Novel hard rock entry driving machine cutterhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110552697A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821509A (en) * | 2019-12-11 | 2020-02-21 | 辽宁工程技术大学 | Independently supplementary cut tunnelling analogue test device of excitation formula |
| CN111894620A (en) * | 2020-09-07 | 2020-11-06 | 福州大学 | High-voltage electric auxiliary rock-breaking roadway tunneling construction method |
| CN113217006A (en) * | 2021-05-24 | 2021-08-06 | 中铁工程装备集团有限公司 | Conical cutter head and heading machine |
| CN114934782A (en) * | 2022-07-22 | 2022-08-23 | 山西天地煤机装备有限公司 | Cutting mechanism of heading machine and heading machine |
-
2019
- 2019-09-05 CN CN201910837258.XA patent/CN110552697A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821509A (en) * | 2019-12-11 | 2020-02-21 | 辽宁工程技术大学 | Independently supplementary cut tunnelling analogue test device of excitation formula |
| CN111894620A (en) * | 2020-09-07 | 2020-11-06 | 福州大学 | High-voltage electric auxiliary rock-breaking roadway tunneling construction method |
| CN113217006A (en) * | 2021-05-24 | 2021-08-06 | 中铁工程装备集团有限公司 | Conical cutter head and heading machine |
| CN114934782A (en) * | 2022-07-22 | 2022-08-23 | 山西天地煤机装备有限公司 | Cutting mechanism of heading machine and heading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191210 |
|
| WW01 | Invention patent application withdrawn after publication |