CN202108518U - Hob adopting novel sealing for shield machine - Google Patents
Hob adopting novel sealing for shield machine Download PDFInfo
- Publication number
- CN202108518U CN202108518U CN2011202145083U CN201120214508U CN202108518U CN 202108518 U CN202108518 U CN 202108518U CN 2011202145083 U CN2011202145083 U CN 2011202145083U CN 201120214508 U CN201120214508 U CN 201120214508U CN 202108518 U CN202108518 U CN 202108518U
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- China
- Prior art keywords
- seal
- sealing
- pair
- shield machine
- hob
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- Expired - Fee Related
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Abstract
The utility model discloses a hob adopting novel sealing for a shield machine, which comprises a hob body used for installing cutting edges, a rotating shaft installed in a shaft hole of the hob body through a bearing and an end cover arranged on the outside of the bearing. A movable sealing ring is arranged on the connection face of the hob body and the end cover, a pair of sealing grooves are arranged inside the end cover and the hob body, a pair of sealing rings are arranged in the sealing grooves, and grease is injected in a cavity formed between the movable sealing ring and the pair of sealing rings. The movable sealing ring is arranged on the connection face of the hob body and the end cover to form a first sealing, the grease is injected in the cavity formed between the movable sealing ring and the pair of sealing rings to form a second sealing, and the pair of sealing rings are arranged in the sealing grooves to form a third sealing. Therefore, impurities are prevented from entering the inside of the hob, and the hob has the advantages of being good in sealing effect and compact in structure.
Description
Technical field
The utility model relates to a kind of shield machine and uses hobboing cutter, relates in particular to a kind of shield machine of novel seal that adopts and uses hobboing cutter.
Background technology
The cutterhead of shield machine is provided with cutter; Mainly be the rotation that utilizes cutterhead, rock, soil layer etc. ditched, rolled and fragmentation etc. that hobboing cutter is simple in structure in the shield cutter, the broken cutter that the rock amount is big, efficiency of breaking rock is high by cutter; Be mainly used in the fragmentation, hard rock; Disk cutter mainly is made up of blade, cutter hub, bearing etc., and the single-blade disk cutter then with its simple structure, higher efficiency of breaking rock with than the long life characteristics, is widely used in the shield machine.The sealing problem of hobboing cutter affects its application life greatly; The seal failure of hobboing cutter is the problem that often runs in the shield-tunneling construction; Make troubles to shield-tunneling construction; The sealing means that is adopted when yet hobboing cutter assembles on the market at present can not effectively solve the problem that impurity such as outside muddy water of hobboing cutter or dregs get into hobboing cutters, and sealing effectiveness is not obvious.
The utility model content
The purpose of the utility model is to provide a kind of shield machine of novel seal that adopts to use hobboing cutter, to solve present shield machine with the unconspicuous problem of hobboing cutter sealing effectiveness, has the advantage of good sealing effect and compact conformation.
The purpose of the utility model is to realize through following technical scheme:
A kind of shield machine of novel seal that adopts is used hobboing cutter; Comprise the cutter hub that blade is installed, the interior rotating shaft of bearing installation and the end cap of bearing outer setting of passing through of axis hole of cutter hub; The place, mating face of said cutter hub and said end cap is provided with dynamic seal; Said end cap and cutter hub inboard are provided with a pair of seal groove, are provided with pair of seal rings in the said seal groove, inject grease in the cavity that forms between said dynamic seal and the pair of seal rings.
Offer the oil pocket that is used for injecting grease and release in the said end cap, and be provided with plug in the end of oil pocket to said cavity.
Said dynamic seal comprises O shape circle and lips cushion rubber.
Said rotating shaft cross section can be circle, triangle, square or trapezoidal.
The beneficial effect of the utility model is: the dynamic seal through in cutter hub and the setting of place, end cap mating face, formed the sealing of first road, and stopped that effectively the outside impurity such as muddy water of hobboing cutter get into its inside; Through the grease that injects in the cavity that between dynamic seal and pair of seal rings, forms, formed the sealing of second road, effectively hinder the impurity that has got on a small quantity; Through a pair of seal groove being set at end cap and cutter hub inboard, be provided with pair of seal rings in the said seal groove, formed three seals, guarantee that finally impurity can not get into hobboing cutter inside.The contrast prior art, this hobboing cutter has the advantage of good sealing effect and compact conformation.
Description of drawings
According to accompanying drawing and embodiment the utility model is done further explain below.
Fig. 1 looks sketch map for the shield machine of the described employing novel seal of the utility model with the master of hobboing cutter.
Fig. 2 is the A place enlarged diagram shown in Fig. 1.
Fig. 3 looks sketch map for the shield machine of the described employing novel seal of the utility model with the left side of hobboing cutter.
Among the figure:
1, blade; 2, cutter hub; 3, bearing; 4, rotating shaft; 5, end cap; 6, dynamic seal; 7, joint ring; 8, cavity; 9, oil pocket; 10, plug; 11, O shape circle; 12, lips cushion rubber.
The specific embodiment
In Fig. 1～3 illustrated embodiments; The shield machine of the described employing novel seal of the utility model is used hobboing cutter; Comprise the cutter hub 2 that blade 1 is installed, the interior rotating shaft 4 of bearing 3 installations and the end cap 5 of bearing 3 outer setting of passing through of axis hole of cutter hub 2, locate to be provided with dynamic seal 6 on the cutter hub 2 and the mating face of end cap 5, end cap 5 and cutter hub 2 inboards are provided with a pair of seal groove; Be provided with pair of seal rings 7 in the said seal groove; And inject grease in the cavity 8 that between dynamic seal 6 and pair of seal rings 7, forms, offer the oil pocket 9 that is used for to cavity 8 injection greases and release in the end cap, and be provided with plug 10 in the end of oil pocket 9.
Through in cutter hub 2 and the dynamic seal 6 that place, end cap 5 mating faces is provided with, formed the sealing of first road, stopped that effectively the outside impurity such as muddy water of hobboing cutter get into its inside, dynamic seal 6 comprises O shape circle 11 and lips cushion rubber 12, makes that sealing is more effective; Through the grease that injects through oil pocket 9 in the cavity 8 that between dynamic seal 6 and pair of seal rings 7, forms; Formed the sealing of second road; Effectively hinder the impurity that has got on a small quantity, at the plug 10 that the end of oil pocket 9 is provided with, can well be in cavity 8 with grease seal; Through a pair of seal groove being set in end cap 5 and cutter hub 2 inboards; Be provided with pair of seal rings 7 in the said seal groove; Formed three seals, guaranteed that finally impurity can not get into hobboing cutter inside, has the advantage of good sealing effect and compact conformation; The cross section of the hobboing cutter rotating shaft 4 of present embodiment is trapezoidal simultaneously, and it also can be circle, triangle or square.
Claims (4)
1. one kind is adopted the shield machine of novel seal to use hobboing cutter; Comprise the cutter hub that blade is installed, the interior rotating shaft of bearing installation and the end cap of bearing outer setting of passing through of axis hole of cutter hub; It is characterized in that: the place, mating face of said cutter hub and said end cap is provided with dynamic seal; Said end cap and cutter hub inboard are provided with a pair of seal groove, are provided with pair of seal rings in the said seal groove, inject grease in the cavity that forms between said dynamic seal and the pair of seal rings.
2. a kind of shield machine of novel seal that adopts according to claim 1 is used hobboing cutter, it is characterized in that: offer the oil pocket that is used for injecting to said cavity grease and release in the said end cap, and be provided with plug in the end of oil pocket.
3. a kind of shield machine of novel seal that adopts according to claim 1 is used hobboing cutter, it is characterized in that: said dynamic seal comprises O shape circle and lips cushion rubber.
4. a kind of shield machine of novel seal that adopts according to claim 1 is used hobboing cutter, it is characterized in that: said rotating shaft cross section can be circle, triangle, square or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202145083U CN202108518U (en) | 2011-06-23 | 2011-06-23 | Hob adopting novel sealing for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202145083U CN202108518U (en) | 2011-06-23 | 2011-06-23 | Hob adopting novel sealing for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108518U true CN202108518U (en) | 2012-01-11 |
Family
ID=45433955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202145083U Expired - Fee Related CN202108518U (en) | 2011-06-23 | 2011-06-23 | Hob adopting novel sealing for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507913A (en) * | 2015-12-31 | 2016-04-20 | 武汉江钻恒立工程钻具股份有限公司 | Hard-rock integral cutter |
| CN109546788A (en) * | 2019-01-18 | 2019-03-29 | 扬州电力设备修造厂有限公司 | A kind of valve fixes device with motor front end cover |
-
2011
- 2011-06-23 CN CN2011202145083U patent/CN202108518U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507913A (en) * | 2015-12-31 | 2016-04-20 | 武汉江钻恒立工程钻具股份有限公司 | Hard-rock integral cutter |
| CN109546788A (en) * | 2019-01-18 | 2019-03-29 | 扬州电力设备修造厂有限公司 | A kind of valve fixes device with motor front end cover |
| CN109546788B (en) * | 2019-01-18 | 2020-10-02 | 扬州电力设备修造厂有限公司 | Motor front end cover fixing device for valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20151223 Granted publication date: 20120111 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160623 Granted publication date: 20120111 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20150623 |