CN202441384U - Disc cutter, inner chamber of which is under pressure - Google Patents
Disc cutter, inner chamber of which is under pressure Download PDFInfo
- Publication number
- CN202441384U CN202441384U CN2011205623299U CN201120562329U CN202441384U CN 202441384 U CN202441384 U CN 202441384U CN 2011205623299 U CN2011205623299 U CN 2011205623299U CN 201120562329 U CN201120562329 U CN 201120562329U CN 202441384 U CN202441384 U CN 202441384U
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- CN
- China
- Prior art keywords
- cutter
- pressure device
- cutter hub
- inner chamber
- screw
- 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.)
- Expired - Lifetime
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a disc cutter, the inner chamber of which is under a pressure. The upper end cover of the disc cutter is provided with a pressure device, which enables the inner chamber of the cutter to have a pressure and plays the effect of a non return valve; the pressure device is fixedly arranged at the pressure device arranging hole on the upper end cover, and gas with a pressure can be injected into the inner chamber of the cutter; the pressure device arranging hole comprises an inner gas port, a gas port threaded hole and an external plugging screw hole in sequence form the interior of the cutter to the exterior of the upper end cover; the pressure device comprises a spring, a hollow inner bulkhead, a sealing ring, a pore screw and an external plugging screw; the middle of the inner bulkhead is provided with a bench, one end of the inner bulkhead is arranged in the spring, and the other end is positioned in the sealing ring; and the spring, the hollow inner bulkhead, the sealing ring and the gas port screw are blocked in the gas port threaded hole by the external plugging screw. According to the utility model, during the process of mud water balance tunnel shield construction, the problem that mud water enters the inner chamber of the cutter under a pressure to damage the sealing and the bearing and further damage the cutter is salved.
Description
Technical field
The utility model relates to a kind of disk cutter, and especially cutter hub inner chamber disk cutter with pressure mainly is applicable to the tunnel piercing of slurry balance shield machine.
Background technology
Shield machine construction has advantages such as mechanization degree height, speed of application are fast, safety height, is widely used in the tunnel piercing of Important Project such as subway, railway, water power.Shield machine full section hard rock construction or on during soft down hard compound stratum construction, adopt disk cutter more, the disk cutter cutter ring is pushed down into rock mass in shield machine thrust and makes catalase during work.Disk cutter not only bears very big radially broken rock power as rock crushing tool, receives the sharp wear of the hard mineral facies of rock simultaneously again.Therefore the hobboing cutter quality directly influences the driving speed of shield machine, is one of maximum expendable part of tunnel piercing.
The slurry balance shield machine is to support firm excavation face by mud pressure; Carry out soil excavation by cutterhead, its cutterhead has a seal diaphragm at the back, and forms the muddy water chamber between the excavation face; The inside has been full of mud; The excavation earth material mixes with mud by slush pump to be carried, and the muddy water after separating treatment pumped back excavation face again forms the circulation rotation and promotes cutterhead, the full section once-forming in tunnel.
When using the slurry balance shield construction, because there is mud hydraulic pressure in the tunnel excavation face, in the digging process; Mud, water easily through the sealing ring between hobboing cutter end cap and the cutter hub, get into the cutter hub inner chamber under pressure; Muddy water causes friction, wearing and tearing to bearing, finally causes damage of bearings stuck; And then cause the hobboing cutter can not normal rotation, the cutter ring eccentric wear, burst apart the unusual condition that hobboing cutter disintegrates and falls apart.
The utility model content
The utility model provides a kind of cutter hub inner chamber disk cutter with pressure to above-mentioned deficiency, and when having solved the slurry balance shield construction, muddy water gets into hobboing cutter cutter hub inner chamber under pressure, damages sealing and bearing, and then causes the problem of the improper damage of hobboing cutter.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is: cutter hub inner chamber disk cutter with pressure; Mainly comprise cutter shaft, bearing, cutter hub, cutter ring, back-up ring, upper end cover, bottom end cover; Cutter shaft passes the upper/lower terminal lid and between cutter shaft and end cap, is provided with sealing ring; Two end cap place respectively the cutter hub two ends and and cutter hub between be provided with sealing ring; Form closed cavity in the cutter hub, it is characterized in that: also be provided with one on the said upper end cover and can make the band pressure device that the cutter hub inner chamber is with pressure, have the one way valve effect, the band pressure device is fixed on the band pressure device installing hole of upper end cover and can injects compressed gas to the cutter hub inner chamber through this installing hole; Said band pressure device installing hole comprises from the interior gas port, the pore screw hole that outside upper end cover, set gradually in the cutter hub; Said band pressure device comprises the pore screw of the spring that sets gradually, interior plug, sealing ring, hollow; Band platform, an end place in the spring in the middle of the plug in said, an end places in the sealing ring, said pore screw with spring, interior plug, sealing ring shutoff in said pore screw hole.
As improvement, said band pressure device installing hole also comprises the outer stifled screw hole that places behind the pore screw hole; The band pressure device also comprises the outer stifled screw that places outer stifled screw hole, with spring, interior plug, sealing ring, the shutoff of pore screw in said pore screw hole.
Owing to form airtight inner chamber in the cutter hub, at hobboing cutter upper end cover mounting strap pressure device, this band pressure device is made up of the pore screw of spring, interior plug, sealing ring, hollow; Pore screw through hollow is to cutter hub injecting compressed air to required force value; When stopping gas injection, the cutter hub internal pressure tightly withstands on pore screw inner side end with interior plug and rubber seal, thereby cutter hub internal pressure gas can not be leaked; Make to keep certain force value in the cutter hub, play the effect of one way valve.
Because the band pressure device has been installed: 1, cutter hub inner chamber band pressure and force value and the concrete operating pressure of shield machine mud and water balance are consistent basically; Thereby balance the pressure of outside muddy water of when driving; Can prevent effectively that outside muddy water from getting into the inefficacy that the cutter hub inner chamber causes sealing and bearing through hermetically-sealed construction, thereby guarantee the normal use of hobboing cutter.2, after the cutter hub inner chamber injection pressure, in the hobboing cutter use, the lubrication oil of cutter hub inner chamber will be more abundant to the lubricated of bearing, can effectively improve the application life of bearing and hobboing cutter.
As improvement; The band pressure device also comprises outer stifled screw; Band pressure device installing hole also comprises the outer stifled screw hole that places behind the pore screw hole; Outer stifled screw in the pore screw hole, has avoided outside muddy water to get into the disk cutter inner chamber through the pore screw of band pressure device spring, interior plug, sealing ring, the further shutoff of pore screw so fully, causes sealing and bearing wear to lose efficacy.
Description of drawings
Fig. 1 is the structural representation of the cutter hub inner chamber disk cutter with pressure of the utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the front view of upper end cover 4 among Fig. 1.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the C-C cutaway view Amplified image of Fig. 3.
The specific embodiment
Below in conjunction with Fig. 1 ~ 5, the utility model is further specified.
The cutter hub inner chamber disk cutter with pressure of the utility model; Mainly comprise cutter shaft 5, bearing 6, cutter hub 3, cutter ring 1, back-up ring 2, upper end cover 4, bottom end cover 8; Cutter shaft 5 passes upper/lower terminal lid 4 and 8 and between cutter shaft 5 and end cap, be provided with floating seal 7; Two end cap place respectively cutter hub 3 two ends and and 3 of cutter hubs be provided with sealing ring, form closed cavity in the cutter hub.Also be provided with one on the said upper end cover 4 and can make the band pressure device 10 that the cutter hub inner chamber is with pressure, have the one way valve effect, band pressure device 10 is fixed on the band pressure device installing hole 9 of upper end cover and can injects compressed gas to cutter hub 3 inner chambers through it.
The band pressure device comprises the pore screw 104 of spring 101, interior plug 102, sealing ring 103, hollow, and band pressure device installing hole 9 comprises from the interior gas port 91, the pore screw hole 92 that outside upper end cover, set gradually in the cutter hub.For avoiding outside muddy water to get into the disk cutter inner chamber through the pore screw 104 of band pressure device, cause sealing and bearing wear to lose efficacy, the band pressure device also comprises outer stifled screw 105, band pressure device installing hole 9 also comprises the outer stifled screw hole 93 behind the pore screw hole 92.Interior plug 102 middle band platforms, an end place in the spring 101, an end places in the sealing ring 103; Outer stifled screw 105 with the interior plug 102 of spring 101, hollow, sealing ring 103,104 shutoff of pore screw in said pore screw hole 92.
Claims (2)
1. cutter hub inner chamber disk cutter with pressure; Mainly comprise cutter shaft, bearing, cutter hub, cutter ring, back-up ring, upper end cover, bottom end cover; Cutter shaft passes the upper/lower terminal lid and between cutter shaft and end cap, is provided with sealing ring; Two end cap place respectively the cutter hub two ends and and cutter hub between be provided with floating seal; Form closed cavity in the cutter hub, it is characterized in that: also be provided with one on the said upper end cover and can make the band pressure device that the cutter hub inner chamber is with pressure, have the one way valve effect, the band pressure device is fixed on the band pressure device installing hole of upper end cover and can injects compressed gas to the cutter hub inner chamber through this installing hole; Said band pressure device installing hole comprises from the interior gas port, the pore screw hole that outside upper end cover, set gradually in the cutter hub; Said band pressure device comprises the pore screw of the spring that sets gradually, interior plug, sealing ring, hollow; Band platform, an end place in the spring in the middle of the plug in said, an end places in the sealing ring, said pore screw with spring, interior plug, sealing ring shutoff in said pore screw hole.
2. cutter hub inner chamber according to claim 1 disk cutter with pressure is characterized in that: said band pressure device also comprises the outer stifled screw that places outer stifled screw hole, and said band pressure device installing hole also comprises the outer stifled screw hole that places behind the pore screw hole; Said outer stifled screw with spring, interior plug, sealing ring, the shutoff of pore screw in said pore screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205623299U CN202441384U (en) | 2011-12-29 | 2011-12-29 | Disc cutter, inner chamber of which is under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205623299U CN202441384U (en) | 2011-12-29 | 2011-12-29 | Disc cutter, inner chamber of which is under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441384U true CN202441384U (en) | 2012-09-19 |
Family
ID=46822837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205623299U Expired - Lifetime CN202441384U (en) | 2011-12-29 | 2011-12-29 | Disc cutter, inner chamber of which is under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533438A (en) * | 2014-12-29 | 2015-04-22 | 上海市基础工程集团有限公司 | One-way valve type nozzle for shield machine slurry supply and water supply system |
-
2011
- 2011-12-29 CN CN2011205623299U patent/CN202441384U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533438A (en) * | 2014-12-29 | 2015-04-22 | 上海市基础工程集团有限公司 | One-way valve type nozzle for shield machine slurry supply and water supply system |
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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: 20200616 Address after: 412000 Diamond Road 288, lotus pond area, Hunan, Zhuzhou Patentee after: Zhuzhou Cemented Carbide Group Corp.,Ltd. Address before: 412000, Daping Road, lotus pond area, Hunan, Zhuzhou, 312 Patentee before: ZHUZHOU DIAMOND DRILLING TOOLS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |