CN102418532A - Disk-shaped heavy hob for hard rock tunneling machine - Google Patents
Disk-shaped heavy hob for hard rock tunneling machine Download PDFInfo
- Publication number
- CN102418532A CN102418532A CN2011104445072A CN201110444507A CN102418532A CN 102418532 A CN102418532 A CN 102418532A CN 2011104445072 A CN2011104445072 A CN 2011104445072A CN 201110444507 A CN201110444507 A CN 201110444507A CN 102418532 A CN102418532 A CN 102418532A
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- China
- Prior art keywords
- cutter
- ring
- bearing
- inner ring
- hard rock
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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.)
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- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a disk-shaped heavy hob for a hard rock tunneling machine. The disk-shaped heavy hob comprises a cutter shaft (2), a cutter body (5) and a cutter ring (6), wherein the cutter ring is sleeved on the outer ring of the cutter body and positioned by a clamping ring (8) which is clamped in an annular slot (12) on the outer ring of the cutter body; rolling paths (11) are centrosymmetrically arranged on the inner ring of the cutter body along the axial direction of the cutter body; bearing rollers (4) are arranged in the rolling paths; an annular bulge (10) which extends towards the center is formed in the axial center of the inner ring of the cutter body; the cutter shaft (2) is arranged in the cutter body (5); a thrust bearing (7), a bearing inner sleeve ring (3) and a cutter cover (1) are arranged on the cutter shaft sequentially from inside to outside; the thrust bearing (7) is tightly leaned on one side of the annular bulge (10); and the thrust bearing, the bearing inner sleeve ring and the cutter cover are arranged on the cutter shaft in a manner of being symmetric with the annular bulge. The hob has enough strength and long service life and can be suitable for a geological condition with non-uniform hard rocks.
Description
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Technical field
The present invention relates to a kind of auxiliary accessories of hard rock mole, relate generally to the heavy hobboing cutter of the dish type that is applied on the hard rock mole.
Background technology
The heavy hobboing cutter of dish type is a hard rock mole; Also claim to be used on the shield machine cut the dedicated tool of rock-soil layer; It is installed on the cutterhead and when constructing tunnel the disk cutter cutter ring by in the injection rock soil layer; Cutterhead drive disk cutter under whirligig drives is realized revolution and rotation simultaneously, makes disk cutter roll extrusion continuously on the rock soil layer, accomplishes continuous cutting and fragmentation to the rock soil layer.Therefore the disk cutter load of in work progress, bearing changes with the variation on stratum, and the variation of geological conditions is had very high sensitiveness.Particularly in hard rock uneven strata when driving, the easyliest caused the cutter hub play, bearing is cracked or eccentric wear damages phenomenon, and application life is short.
Therefore the length of cutter life and the compliance of geological conditions become one of key factor that influences shield machine construction efficient.
The hard rock mole cutter generally can be divided into positive hobboing cutter, center hobboing cutter, scraper, cutting knife, cutter and guarantor go ahead of the rest
Protect cutter etc., change with the geology condition and should select suitable hobboing cutter for use.
At present, adopt 17 more than the hard rock mole disk cutter of home and abroad " disk cutter, its frame mode
Be generally on a cutter shaft two taper roll bearings be installed, exist in the use shaft strength when big bearing very easily damage with cutter hub, bearing takes place, cutter hub damage seal failure leakage of oil causes shortcomings such as cutter lost efficacy in advance.
Summary of the invention
The invention technical problem to be solved provides a kind of have sufficient intensity, long service life and right
Answer the heavy hobboing cutter of hard rock mole dish type of the inhomogeneous geology condition of hard rock.
For solving the problems of the technologies described above, following technical scheme is adopted in the invention:
The heavy hobboing cutter of a kind of hard rock mole dish type comprises cutter shaft, cutter hub and cutter ring, and said cutter ring is set on the cutter hub outer ring, and through being buckled in the snap ring location in the outer ring annular groove of cutter hub; Said cutter hub inner ring is arranged with raceway along the cutter hub axial centre, is provided with bearing roller in the raceway; Said cutter hub inner ring axial centre is provided with the annular protrusion that extends to the center; Cutter shaft is arranged in the cutter hub, from inside to outside is provided with thrust bearing, bearing inner ring and cutter lid on the cutter shaft successively, and said thrust bearing is near annular protrusion one side, and thrust bearing, bearing inner ring and cutter lid are symmetrical in annular protrusion and on cutter shaft, are provided with.
Further, be symmetrical set floating seal ring in the space that said cutter lid, cutter hub and bearing inner ring form.
Further, offer annular oil groove on the said cutter shaft.
Owing to adopted technique scheme, the invention to have following beneficial effect:
1, bearing roller, bearing inner ring and cutter hub and thrust bearings become combination bearing, make cutter anti-axially and radial load increase greatly.
2, the cutter hub inner ring is provided with raceway, and bearing roller is arranged in the raceway and with bearing inner ring and keeps use level, guarantees in assembling process, to closely cooperate, and makes cutter can not produce displacement in the course of the work, and is safe and reliable.
Description of drawings
Fig. 1 is the structural representation of the invention hobboing cutter;
Fig. 2 is the structural representation of the invention cutter hub;
Fig. 3 is the structural representation of the invention cutter shaft;
Among the figure: 1, cutter lid; 2, cutter shaft; 3, bearing inner ring; 4, bearing roller; 5, cutter hub; 6, cutter ring; 7, thrust bearing; 8, snap ring; 9, floating seal ring; 10, annular protrusion; 11, raceway; 12, cannelure; 13, oil groove.
The specific embodiment
In conjunction with Fig. 1 to Fig. 3, the heavy hobboing cutter of the hard rock mole of present embodiment, cutter ring 6 is set on cutter hub 5 outer rings, cutter ring 6 one ends and cutter hub 5 outer rings recessed shoulder location, the other end is through being buckled in snap ring 8 location in the outer ring annular groove 12 of cutter hub; The cutter hub inner ring is arranged with raceway 11 along the cutter hub axial centre, is provided with bearing roller 4 in the raceway; Cutter hub inner ring axial centre is provided with the annular protrusion 10 that extends to the center; Cutter shaft 2 is arranged in the cutter hub 5, from inside to outside is provided with thrust bearing 7, bearing inner ring 3 and cutter lid 1 on the cutter shaft successively, and thrust bearing 7 is near annular protrusion 10 1 sides, and thrust bearing, bearing inner ring and cutter lid are symmetrical in annular protrusion and on cutter shaft, are provided with.Bearing roller 4, bearing inner ring 3 and thrust bearing 7 composition combination bearings resist axially cutter and radial load increases greatly.
Offer annular oil groove 13 on the cutter shaft; Being symmetrical set 9, two cutter lids of floating seal ring and cutter hub and floating seal ring composition annular seal space storage lubrication oil in the space that cutter lid, cutter hub and bearing inner ring form is lubricated bearing and floating seal ring in the work.
During work, should be installed on the hard rock mole cutterhead by the heavy type hobboing cutter, cutter hub 5 and cutter ring 6 are rotated on cutter shaft 2 through cutter shaft 2.Cutter hub is as the outer collar of bearing and be used for installing cutter ring and through cutter ring rock cut fragmentation.Obviously, the structural strength and the supporting capacity of heavy disk cutter improve greatly, can satisfy the tunneling construction needs of the inhomogeneous ground consisting of hard rock of full section.
Claims (3)
1. the heavy hobboing cutter of hard rock mole dish type comprises cutter shaft (2), cutter hub (5) and cutter ring (6), and it is characterized in that: said cutter ring is set on the cutter hub outer ring, and through being buckled in snap ring (8) location in the outer ring annular groove (12) of cutter hub; Said cutter hub inner ring is arranged with raceway (11) along the cutter hub axial centre, is provided with bearing roller (4) in the raceway; Said cutter hub inner ring axial centre is provided with the annular protrusion (10) that extends to the center; Cutter shaft (2) is arranged in the cutter hub (5); From inside to outside be provided with thrust bearing (7), bearing inner ring (3) He Daogai (1) on the cutter shaft successively; Said thrust bearing (7) is near annular protrusion (10) one sides, and thrust bearing, bearing inner ring and cutter lid are symmetrical in annular protrusion and on cutter shaft, are provided with.
2. the heavy hobboing cutter of hard rock mole dish type according to claim 1 is characterized in that: be symmetrical set floating seal ring (9) in the space that said cutter lid, cutter hub and bearing inner ring form.
3. the heavy hobboing cutter of hard rock mole dish type according to claim 1 and 2 is characterized in that: offer annular oil groove (13) on the said cutter shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104445072A CN102418532A (en) | 2011-12-27 | 2011-12-27 | Disk-shaped heavy hob for hard rock tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104445072A CN102418532A (en) | 2011-12-27 | 2011-12-27 | Disk-shaped heavy hob for hard rock tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418532A true CN102418532A (en) | 2012-04-18 |
Family
ID=45943152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104445072A Withdrawn CN102418532A (en) | 2011-12-27 | 2011-12-27 | Disk-shaped heavy hob for hard rock tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418532A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352706A (en) * | 2013-05-30 | 2013-10-16 | 大连理工大学 | Method for designing center bigeminal hobs of heading machine |
| CN103953357A (en) * | 2014-05-15 | 2014-07-30 | 邵祥顺 | Novel rock breaking method and rock breaking hob |
| CN104265320A (en) * | 2014-10-16 | 2015-01-07 | 山东天工岩土工程设备有限公司 | Core bag structure hobbing cutter, and use method as well as application thereof |
| DE102018108686B3 (en) | 2018-04-12 | 2019-08-14 | Technische Universität Bergakademie Freiberg | Apparatus and methods for impact load transfer to chisel bits of rock working machines |
-
2011
- 2011-12-27 CN CN2011104445072A patent/CN102418532A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352706A (en) * | 2013-05-30 | 2013-10-16 | 大连理工大学 | Method for designing center bigeminal hobs of heading machine |
| CN103953357A (en) * | 2014-05-15 | 2014-07-30 | 邵祥顺 | Novel rock breaking method and rock breaking hob |
| CN104265320A (en) * | 2014-10-16 | 2015-01-07 | 山东天工岩土工程设备有限公司 | Core bag structure hobbing cutter, and use method as well as application thereof |
| DE102018108686B3 (en) | 2018-04-12 | 2019-08-14 | Technische Universität Bergakademie Freiberg | Apparatus and methods for impact load transfer to chisel bits of rock working machines |
| WO2019196991A1 (en) | 2018-04-12 | 2019-10-17 | Tu Bergakademie Freiberg | Devices and methods for impact load transmission onto disk-shaped drill bits of rock processing machines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20120418 |