CN202467845U - Hard rock hob of large-caliber vertical shaft - Google Patents
Hard rock hob of large-caliber vertical shaft Download PDFInfo
- Publication number
- CN202467845U CN202467845U CN2011205548917U CN201120554891U CN202467845U CN 202467845 U CN202467845 U CN 202467845U CN 2011205548917 U CN2011205548917 U CN 2011205548917U CN 201120554891 U CN201120554891 U CN 201120554891U CN 202467845 U CN202467845 U CN 202467845U
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- China
- Prior art keywords
- cutter
- hob
- shell
- shaft
- vertical shaft
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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 - Fee Related
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Abstract
The utility model discloses a hard rock hob of a large-caliber vertical shaft. The hard rock hob of the large-caliber vertical shaft comprises a hob shaft (3) and a hob case (1), wherein the hob shaft (3) is arranged in the hob case (1); two sets of bearings (5), space rings (8) and hob covers (2) are clamped between the hob shaft and the hob case; the two sets of bearings, space rings and hob covers are arranged along the length of the hob case in the manner of central symmetry; a ferrule (7) is arranged between the two sets of bearings (5); one end of the hob is provided with a shaft shoulder (11) which is matched with a set of hob cover grooves (12) to be axially positioned; the hob case is set to be conical; the outer shell of the hob case is provided with ring grooves (9); and hard alloy teeth (6) are annularly welded on the outer shell of the hob case which is adjacent to the ring grooves at intervals. The specially designed hard alloy teeth are welded on the outer shell of the hob case in the manner of staggering, and moreover, the edge shape of the top part of each alloy tooth is set to be a smooth wedge-type tooth, the hard rock hob of the large-caliber vertical shaft is higher in impact resistance and abrasive resistance.
Description
Technical field
The utility model relates to a kind of accessory of heavy caliber shaft drilling machine, is specifically related to a kind of hard rock hobboing cutter that is installed on large-scale shaft drilling machine drill bit or the cutterhead.
Background technology
At present, the high speed development along with China's modernization economic construction has a large amount of large-scale collieries, iron ore and non-ferrous metal mine to dig and creeps into, and heavy caliber shaft drilling machine construction method is one of main construction method of digging in this type mine.Vertical shaft hobboing cutter fractured rock through on cutterhead, installing in the work progress; And take processes such as slurry strengthened wall, the anti-deslagging that circulates, have the mechanization degree height; No underground work; Guarantee advantages such as construction safety, can overcome the difficult problem of various bad ground shaft buildings, in the vertical shaft construction so large aperture work shaft rig drilling construction method is widely used.But 12 traditional inch vertical shaft hobboing cutters are too little, and cutter shell configuration design science not, and unfavorable the squeezing easily of deslagging adheres on the cutter shell, and anti-wear performance is poor, and cutter seals also easy abrasion, and application life is short, can not fully satisfy the construction needs.
Summary of the invention
It is supporting that the utility model technical problem to be solved provides a kind of and heavy caliber shaft drilling machine, enough hardness arranged, abrasion resistance is good and the large-scale hobboing cutter of adaptation hard rock geological conditions.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
A kind of heavy caliber vertical shaft hard rock hobboing cutter of the utility model; Comprise cutter shaft and cutter shell, said cutter shaft is arranged in the cutter shell, and folder is established two groups of bearings, spacer ring and cutter lid between cutter shaft and cutter shell; Two groups of bearings, spacer ring and cutter lids are symmetrical set along cutter shell length center, between two groups bearing lasso are set; Cutter shaft one end is provided with the cutter lid groove fit of the shaft shoulder and a group and carries out axial location; Wherein, the cutter shell is set to taper, and cutter shell shell body is offered cannelure, annular space seting welding carbide tooth on the adjacent cutter shell shell body of cannelure.
Further, the said cutter shell taper that is 4 ° of cone angles.
Further, arrange floating seal between said spacer ring and the cutter lid in pairs.
Further, said carbide alloy tooth tooth shape is set to the chisel teeth of smooth transition.
Further, the tooth shape of said hard-metal insert same annular place on cutter shell shell body is provided with in the same way.
Further, said hard-metal insert two adjacent annular place interlaced arrangement on cutter shell shell body.
Because adopt technique scheme, the invention has following beneficial effect:
1, the hard-metal insert through staggered welding-on particular design on cutter shell shell body, and the top tooth shape of carbide button is made as smooth wedge type tooth, makes it that higher impact resistance and abrasion resistance arranged.
2, through between spacer ring and cutter lid, arranging floating seal in pairs, guaranteed the abrasion resistance of floating seal, prolongation floating seal application life.
Description of drawings
Fig. 1 is the perspective effect figure of the hobboing cutter of the invention;
Fig. 2 is the structural representation of the hobboing cutter of the invention;
Fig. 3 is the structural representation of the cutter shell of the invention;
Fig. 4 is the structural representation of the cutter lid of the invention;
Fig. 5 is the structural representation of the carbide alloy tooth tooth shape of the invention;
Among the figure: 1, cutter shell; 2, cutter lid; 3, cutter shaft; 4, floating seal; 5, bearing; 6, hard-metal insert; 7, lasso; 8, spacer ring; 9, cannelure; 10, chisel teeth; 11, the shaft shoulder; 12, groove.
The specific embodiment
In conjunction with Fig. 1 to Fig. 5; The heavy caliber vertical shaft hard rock hobboing cutter of present embodiment; The tapered knife shell 1 that comprises cutter shaft 3 and 4 ° of cone angles, cutter shaft 3 are arranged on cutter shell 1 axial centre, and folder is established two groups of bearings that set gradually 5, spacer ring 8 and cutter lid 2 between cutter shaft and cutter shell; Two groups of bearings, spacer ring and cutter lids are symmetrical set along cutter shell length center, between two groups bearing 5 inner rings lasso 7 are set; Cutter shaft one end is provided with the shaft shoulder 11 and cooperates with one group cutter lid groove 12 and carry out axial location; Wherein, cutter shell shell body is offered three cannelures 9, annular space seting welding carbide tooth 6 on the adjacent cutter shell shell body of cannelure, and hard-metal insert is two adjacent annular place interlaced arrangement on cutter shell shell body.Hard-metal insert 6 top tooth shapes are set to the chisel teeth 10 of smooth transition, and the tooth shape of hard-metal insert same annular place on cutter shell shell body is provided with in the same way.
Cutter shaft 3 is used to support cutter shell 1, sealing device, bearing 5 and cutter lid 2 etc., and through cutter shaft 3 hobboing cutter is bolted on cutterhead or the drill bit; Two bearings 5 are used for supporting cutter shell 1 rotates it on cutter shaft 3; Arrange in pairs that between spacer ring 8 and cutter lid 2 floating seal 4 constitutes sealing device, the purposes of cutter lid and sealing device is to preserve lubrication oil.
Cutter shell 1 is used for carrying out the cutting fragmentation of rock and soil layer with hard-metal insert 6.The mechanical performance of cutter shell can change according to geological conditions to be adjusted, and hard-metal insert mainly embeds fragmentation to rock.The tool setting shell has carried out strongization processing in the present embodiment; Make the top tooth shape of hard-metal insert 6 be made as smooth wedge type tooth 10; And with the big end of chisel teeth interlaced arrangement on cutter shell shell body of hard-metal insert; Make it that higher impact resistance, cutting ability and abrasion resistance arranged, effectively improved the application life of hobboing cutter.
Claims (6)
1. heavy caliber vertical shaft hard rock hobboing cutter; Comprise cutter shaft (3) and cutter shell (1); It is characterized in that: said cutter shaft (3) is arranged in the cutter shell (1); Folder is established two groups of bearings (5), spacer ring (8) He Daogai (2) between cutter shaft and cutter shell, and two groups of bearings, spacer ring and cutter lids are symmetrical set along cutter shell length center, and lasso (7) is set between two groups bearing (5); Cutter shaft one end is provided with the shaft shoulder (11) and cooperates with one group cutter lid groove (12) and carry out axial location; Wherein, cutter shell (1) is set to taper, and cutter shell shell body is offered cannelure (9), annular space seting welding carbide tooth (6) on the adjacent cutter shell shell body of cannelure.
2. heavy caliber vertical shaft hard rock hobboing cutter according to claim 1, it is characterized in that: said cutter shell (1) is the taper of 4 ° of cone angles.
3. heavy caliber vertical shaft hard rock hobboing cutter according to claim 1 is characterized in that: arrange floating seal (4) between said spacer ring (8) and the cutter lid (2) in pairs.
4. heavy caliber vertical shaft hard rock hobboing cutter according to claim 1 is characterized in that: said hard-metal insert (6) top tooth shape is set to the chisel teeth (10) of smooth transition.
5. according to claim 1 or 4 described heavy caliber vertical shaft hard rock hobboing cutters, it is characterized in that: the tooth shape of said hard-metal insert same annular place on cutter shell shell body is provided with in the same way.
6. heavy caliber vertical shaft hard rock hobboing cutter according to claim 1 is characterized in that: said hard-metal insert (6) is two adjacent annular place interlaced arrangement on cutter shell shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205548917U CN202467845U (en) | 2011-12-27 | 2011-12-27 | Hard rock hob of large-caliber vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205548917U CN202467845U (en) | 2011-12-27 | 2011-12-27 | Hard rock hob of large-caliber vertical shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202467845U true CN202467845U (en) | 2012-10-03 |
Family
ID=46916010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205548917U Expired - Fee Related CN202467845U (en) | 2011-12-27 | 2011-12-27 | Hard rock hob of large-caliber vertical shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202467845U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281684A (en) * | 2018-10-25 | 2019-01-29 | 北京中煤矿山工程有限公司 | A kind of anti-well drilling machine inserted tooth hob of quick-detachable sliding bearing |
| CN110259471A (en) * | 2019-07-23 | 2019-09-20 | 中交第三航务工程局有限公司 | Excavate to a kind of all standing the hobboing cutter cutter ring of ultra-clean hard rock shield machine |
-
2011
- 2011-12-27 CN CN2011205548917U patent/CN202467845U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281684A (en) * | 2018-10-25 | 2019-01-29 | 北京中煤矿山工程有限公司 | A kind of anti-well drilling machine inserted tooth hob of quick-detachable sliding bearing |
| CN110259471A (en) * | 2019-07-23 | 2019-09-20 | 中交第三航务工程局有限公司 | Excavate to a kind of all standing the hobboing cutter cutter ring of ultra-clean hard rock shield machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20121227 |