CN203655286U - Hobbing cutter-type cutting head for cantilever excavator - Google Patents
Hobbing cutter-type cutting head for cantilever excavator Download PDFInfo
- Publication number
- CN203655286U CN203655286U CN201320873767.6U CN201320873767U CN203655286U CN 203655286 U CN203655286 U CN 203655286U CN 201320873767 U CN201320873767 U CN 201320873767U CN 203655286 U CN203655286 U CN 203655286U
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- CN
- China
- Prior art keywords
- cutting head
- hobbing cutter
- tool bit
- hobbing
- head
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- 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
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- 239000011435 rock Substances 0.000 abstract description 17
- 238000009412 basement excavation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of an excavator, and particularly relates to a hobbing cutter-type cutting head for a cantilever excavator. The hobbing cutter-type cutting head comprises a cutting head body and a plurality of hobbing cutters arranged on the cutting head body; each hobbing cutter comprises a hobbing cutter base, a tool bit body and a pin shaft; the tool bit body is arranged on the pin shaft; a bush is arranged between the tool bit body and the pin shaft; the hobbing cutter base is a U-shaped base; two ends of the pin shaft are respectively arranged inside holes in two lateral walls of the hobbing cutter base; the tool bit body is arranged inside U-shaped space of the hobbing cutter base; a through hole is formed in the bottom of the hobbing cutter base; the hobbing cutter base is fixed on the cutting head body through a locating pin; distribution of the hobbing cutters on the cutting head body is in a double helix arrangement form; a helical line I and a helical line II are arranged in parallel; four hobbing cutters are horizontally arranged at the intersection of the helical line I and the helical line II at the top of the cutting head body. By optimizing the improved hobbing cutter structure and adopting double helix horizontal arrangement mode, the tool bit head generates positive pressure on a rock, the traditional cutting mode is changed, and the rock damage rate is effectively improved.
Description
Technical field
The utility model belongs to the technical field of development machine, is specifically related to a kind of boom-type roadheader hobboing cutter type cutterhead.
Background technology
In coal mine roadway tunneling process, can run into unavoidably rock gangway and alternate heading, the driving of rock gangway lives through several times to be changed, from big gun the earliest dig hydraulic drill rig side unloading rock loader again to Hard Rock-type development machine for hard rock tunnelling in continuous improvement, hobboing cutter type cutting head is a technology transfer and the improvement for hard rock tunnelling in conjunction with the broken rock principle of shield machine on this basis, can effectively improve efficiency of breaking rock and reduce the loss of cutter head.
Traditional big gun pick efficiency is low, dangerous large, hydraulic pressure driving drill carriage efficiency is improved and still belongs to big gun and adopt, hydraulic system is relative complex also, cause fault rate high, and discharge refuse time of shipment is long, restricting speedy drivage, hard rock mole, by increasing fuselage weight, uses high-intensity pick, can realize damping and the broken rock of complete machine, but the consumption of its pick is very large, the fault rate of cutting units is high.
Summary of the invention
The problems such as consumption that the utility model is intended to the pick existing for existing cutterhead is very large, the fault rate height of cutting units, propose a kind of boom-type roadheader hobboing cutter type cutterhead.
The utility model adopts following technical scheme:
Hobboing cutter type cutterhead for a kind of boom-type roadheader, comprises the body of the cutting head and is installed on the some hobboing cutters on the body of the cutting head, has the axis hole being connected with cantilever on described the body of the cutting head; Described hobboing cutter comprises hob head, body of tool bit, bearing pin, and body of tool bit is installed on bearing pin, between body of tool bit and bearing pin, is provided with lining; Described hob head is U-shaped seat, and the two ends of bearing pin are installed on respectively on the two side of hob head in hole, and body of tool bit is located in the U-shaped space of hob head, and hob head bottom has through hole, and hob head is fixed on the body of the cutting head by alignment pin; Described hobboing cutter is distributed as bipitch helical line arrangement form on the body of the cutting head, and helix I and helix II are arranged in parallel, and helix I and helix II have four hobboing cutters in the infall horizontal arrangement at the top of the body of the cutting head.
On two described helixes, be respectively furnished with 7 hobboing cutters.
The utlity model has following beneficial effect:
1, hobboing cutter overall volume of the present utility model is little, be arranged on the body of the cutting head of arm-type development machine after compact conformation, can adapt to severe operating mode, and change convenient;
2, hobboing cutter adopts the bipitch helical line pattern of arranging on boom-type roadheader cutterhead, has realized the normal pressure of hobboing cutter cutter ring to rock in tunneling process, can local broken rock by shear extrusion, improve rock breaking efficiency, and reduce cutter consumption;
3, after improvement, can realize the exchange of boom-type roadheader pick shape tooth cutterhead and hobboing cutter type cutterhead, meet the excavation operation requirement in different tunnels.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is sectional view of the present utility model;
In figure: 1-hob head, 2-body of tool bit, 3-alignment pin, 4-lining, 5-bearing pin, the heavy back-up ring of 6-, 7-helix I, 8-helix II, 9-the body of the cutting head, 10-hobboing cutter.
Detailed description of the invention
By reference to the accompanying drawings, detailed description of the invention of the present utility model is described further:
As shown in Figure 1,3, hobboing cutter type cutterhead for a kind of boom-type roadheader, comprises the body of the cutting head 9 and is installed on the some hobboing cutters 10 on the body of the cutting head 9, on described the body of the cutting head 9, has the axis hole being connected with cantilever; Described hobboing cutter 10 comprises hob head 1, body of tool bit 2, bearing pin 5, and body of tool bit 2 is installed on bearing pin 5, between body of tool bit 2 and bearing pin 5, is provided with lining 4; Described hob head 1 is U-shaped seat, and the two ends of bearing pin 5 are installed on respectively on the two side of hob head 1 in hole, and body of tool bit 2 is located in the U-shaped space of hob head 1, and hob head 1 bottom has through hole, and hob head 1 is fixed on the body of the cutting head 9 by alignment pin 3; Described hobboing cutter 10 is distributed as bipitch helical line arrangement form on the body of the cutting head 9, and helix I 7 is arranged in parallel with helix II 8, and helix I 7 has four hobboing cutters 10 with helix II 8 in the infall horizontal arrangement at the top of the body of the cutting head 9.
Article two, on helix, be respectively furnished with 7 hobboing cutters, on the body of the cutting head, be placed with 18 each hobboing cutters by double helix.
Because boom-type roadheader is different from the excavation operation form of shield machine, shield machine adopts the large cutterhead one-shot forming cutting of full section, hobboing cutter arrange position and space navigability large, and boom-type roadheader promotes to realize bobbing and weaving of cutting arm by hydraulic jack, cutting motor drives cutting head to carry out excavation operation simultaneously, cutting head volume is little, and the amplitude of bobbing and weaving is large, need to carry out again optimal design to adapt to its compact layout to hobboing cutter and hobboing cutter type cutting head.
By optimizing improved hob-cutter structure and adopting double helix parallel arrangement, in the cutterhead course of work, make body of tool bit produce normal pressure to rock, change traditional cutting way, effectively improve broken rock rate.
Because having the axis hole being connected with cantilever on the body of the cutting head 9, can realize the exchange of boom-type roadheader pick shape tooth cutterhead and hobboing cutter type cutterhead described in the utility model, to meet the excavation operation requirement in different tunnels, can reduce the fault rate of machine simultaneously, reduce the loss of cutter head, improve efficiency of breaking rock and realize the speedy drivage in tunnel.
Claims (2)
1. a hobboing cutter type cutterhead for boom-type roadheader, comprises the body of the cutting head (9) and is installed on the some hobboing cutters (10) on the body of the cutting head (9), it is characterized in that: on described the body of the cutting head (9), have the axis hole being connected with cantilever; Described hobboing cutter (10) comprises hob head (1), body of tool bit (2), bearing pin (5), and it is upper that body of tool bit (2) is installed on bearing pin (5), between body of tool bit (2) and bearing pin (5), is provided with lining (4); Described hob head (1) is U-shaped seat, the two ends of bearing pin (5) are installed on respectively on the two side of hob head (1) in hole, body of tool bit (2) is located in the U-shaped space of hob head (1), hob head (1) bottom has through hole, and hob head (1) is fixed on the body of the cutting head (9) by alignment pin (3); Described hobboing cutter (10) is distributed as bipitch helical line arrangement form on the body of the cutting head (9), helix I (7) is arranged in parallel with helix II (8), and helix I (7) has four hobboing cutters (10) with helix II (8) in the infall horizontal arrangement at the top of the body of the cutting head (9).
2. hobboing cutter type cutterhead for boom-type roadheader according to claim 1, is characterized in that: on two described helixes, be respectively furnished with 7 hobboing cutters (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873767.6U CN203655286U (en) | 2013-12-29 | 2013-12-29 | Hobbing cutter-type cutting head for cantilever excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873767.6U CN203655286U (en) | 2013-12-29 | 2013-12-29 | Hobbing cutter-type cutting head for cantilever excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655286U true CN203655286U (en) | 2014-06-18 |
Family
ID=50921686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320873767.6U Expired - Lifetime CN203655286U (en) | 2013-12-29 | 2013-12-29 | Hobbing cutter-type cutting head for cantilever excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715210A (en) * | 2016-04-11 | 2016-06-29 | 湖南创远高新机械有限责任公司 | Hobbing cutter seat and key pin combined positioning structure for raise boring machine |
| CN108104809A (en) * | 2017-12-11 | 2018-06-01 | 三重型装备有限公司 | The body of the cutting head, cutterhead and development machine |
-
2013
- 2013-12-29 CN CN201320873767.6U patent/CN203655286U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715210A (en) * | 2016-04-11 | 2016-06-29 | 湖南创远高新机械有限责任公司 | Hobbing cutter seat and key pin combined positioning structure for raise boring machine |
| CN105715210B (en) * | 2016-04-11 | 2018-08-10 | 湖南创远高新机械有限责任公司 | Raise boring machine hob head key pin assembly positioning structure |
| CN108104809A (en) * | 2017-12-11 | 2018-06-01 | 三重型装备有限公司 | The body of the cutting head, cutterhead and development machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191028 Address after: 030699 Yuci Industrial Park, Shanxi, Jinzhong Patentee after: Shanxi Matt Machinery Manufacturing Co.,Ltd. Address before: 030032 Taiyuan economic and Technological Development Zone, Shanxi city street, No. 25 Patentee before: TZ COAL MINE MACHINERY Co. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |