CN208203276U - A kind of shield machine single blade hobbing cutter - Google Patents
A kind of shield machine single blade hobbing cutter Download PDFInfo
- Publication number
- CN208203276U CN208203276U CN201820647069.7U CN201820647069U CN208203276U CN 208203276 U CN208203276 U CN 208203276U CN 201820647069 U CN201820647069 U CN 201820647069U CN 208203276 U CN208203276 U CN 208203276U
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- Prior art keywords
- end cap
- cutter
- cutter hub
- shield machine
- hub
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A kind of shield machine single blade hobbing cutter, including cutter shaft, bearing insert is set on cutter shaft, bearing insert and cutter shaft are interference fitted, bearing insert includes bearing circle body, several through-holes are set on bearing circle body, solid lubricant is set in through-hole, cutter hub is arranged outside bearing insert, cutter hub and bearing insert clearance fit are arranged cutter ring outside cutter hub, and end cap A and end cap B is respectively set in the two sides of cutter hub, end cap A and end cap B are set on cutter shaft, are equipped with thrust washer between end cap A and cutter hub, between end cap B and cutter hub.The utility model has the beneficial effects that: making it possible that the small torque of hobboing cutter starts, the scope of application of the hobboing cutter in shield-tunneling construction is improved, hobboing cutter eccentric wear probability is reduced, extends hobboing cutter shelf life.
Description
Technical field
The utility model relates generally to shield machine field, specifically a kind of shield machine single blade hobbing cutter.
Background technique
Shield cutter is the important component of shield machine, directly affects shield-tunneling construction progress.So must be according to engineering
The rock breaking mechanism that the varying strength and geology characteristic and cutter of location rock are shown in different rocks to carry out cutter
Design and selection.In order to adapt to the excavation from weak soil to hard rock Different Strata, a variety of cutters are designed at present and are adapted to therewith.Shield
Rounding machine cutter type is divided into two major classes: hobboing cutter and bite.
Pure rock stratum, with big partial size gravel, (partial size is greater than 400mm) and content reaches certain ratio for tunneling for hobboing cutter
The compound stratum that the sand-pebble layer of example, rock (intensity is less high) and the general soil body (loosen the soil or sand) staggeredly frequently occur.
When cutterhead works, hobboing cutter takes the lead in and excavates face contact, is pressed on scar under thrust, with the rotation of cutterhead, dish type
On the one hand hobboing cutter revolves around cutter head center axis, while around own axes rotation.Disk cutter is common in the thrust of cutterhead and torque
Under effect, a series of concentric grooves are cut out on face.During cutterhead rotates and is pressed into rock, disk cutter is to rock
Stone will generate the comprehensive functions such as extruding, shearing, drawing crack, can generate fritter under the edge first and be crushed body, be crushed body under the edge
It is rolled into grinding bodies, compact core is then formed by densification, hobboing cutter pressure is passed to surrounding rock by subsequent compact core, and is generated
Radial cracking is formed wherein having one or more of crackles to extend to blade two sides, reaching the scope of freedom or crossing with neighboring cracks
Carg completes rock break-off process.
Hobboing cutter especially central hob, when compound stratum in soft geological compared with advancing, central hob Cutting trajectory is smaller, line
Speed is lower；It is open at center smaller, dregs flowing is not smooth；It is softer to cut stratum, sufficiently large starting torque cannot be provided
Deng.The above reason causes central hob easily to paste knife, leads to cutter ring eccentric wear, causes rolling blade losing efficacy, seriously affects construction speed, and
The service life of cutter ring is shorter.
Utility model content
The purpose of this utility model is to provide a kind of shield machine single blade hobbing cutter, make it possible that the small torque of hobboing cutter starts,
The scope of application of the hobboing cutter in shield-tunneling construction is improved, hobboing cutter eccentric wear probability is reduced, extends hobboing cutter shelf life.
The utility model to achieve the above object, is achieved through the following technical solutions:
Bearing insert, the bearing insert and cutter shaft is arranged on the cutter shaft in a kind of shield machine single blade hobbing cutter, including cutter shaft
Interference fit, the bearing insert includes bearing circle body, several through-holes, setting in the through-hole are arranged on the bearing circle body
Solid lubricant is arranged cutter hub, the cutter hub and bearing insert clearance fit, the cutter hub outer cover outside the bearing insert
If cutter ring, end cap A and end cap B is respectively set in the two sides of the cutter hub, and the end cap A and end cap B are set on cutter shaft, described
Thrust washer is equipped between end cap A and cutter hub, between end cap B and cutter hub.
Oil sealing assembly is equipped between the end cap A, end cap B and cutter hub.
The first external annular groove, the inner periphery of the end cap A and end cap B are equipped on the both ends outer circumference surface of the cutter shaft
Face is equipped with the inner ring type fixed block being adapted with the first external annular groove, passes through spiral shell between the inner ring type fixed block and cutter shaft
It tethers and connects.
It is equipped with inner ring type groove on the end cap A, end cap B, annular fixed seat is set in the inner ring type groove, it is described
Annular fixed seat is threadedly coupled with cutter shaft, is bolted between the annular fixed seat and end cap B.
The cutter shaft is equipped with by one end outer circumference surface of proximal cover A and lacks round block, and the end cap A is equipped with and scarce circle
What type block was adapted lacks round groove, and the cutter shaft is equipped with the first external annular groove by one end outer circumference surface of proximal cover B,
The end cap B is equipped with the inner ring type fixed block being adapted with the first external annular groove, the inner ring type fixed block and cutter shaft it
Between be bolted.
The cutter shaft is equipped with by one end outer circumference surface of proximal cover A and lacks round block, and the end cap A is equipped with and scarce circle
What type block was adapted lacks round groove, and the end cap B is equipped with inner ring type groove, and setting annular is solid in the inner ring type groove
Reservation, the annular fixed seat are threadedly coupled with cutter shaft, are bolted between the annular fixed seat and end cap B.
The annular fixed seat is equipped with several first defining flanges, and the end cap B is equipped with and the first defining flange
The first adaptable limiting groove.
The end cap A and end cap B is equipped with the second defining flange close to the side of cutter hub, and the cutter hub is equipped with and second
The second limiting groove that defining flange matches.
One end outer circumference surface of the cutter hub is equipped with outer ring block, and the internal diameter of the cutter ring is less than the outer of outer ring block
Diameter, the other end outer circumference surface of the cutter hub are equipped with the second external annular groove, are equipped with retaining ring in second external annular groove.
The thrust washer and end cap A, end cap B are interference fitted, the thrust washer and cutter hub clearance fit.
Wearing layer is equipped on the external arc surface of the end cap A and end cap B.
O-ring seal is equipped between the end cap A, end cap B and cutter shaft.
Detailed description of the invention
Attached drawing 1 is one of structural schematic diagram of the utility model；
Attached drawing 2 is the second structural representation of the utility model；
Attached drawing 3 is the schematic cross-sectional view of the utility model；
Attached drawing 4 is the two of the specific embodiment that end cap A, end cap B are connect with cutter shaft；
Attached drawing 5 is the structural schematic diagram of bearing insert.
Label shown in attached drawing: 1, cutter shaft；2, bearing insert；3, bearing circle body；4, solid lubricant；5, cutter hub；6, knife
Circle；7, end cap A；8, end cap B；9, thrust washer；10, Oil sealing assembly；11, round block is lacked；12, round groove is lacked；13, first
External annular groove；14, inner ring type fixed block；15, inner ring type groove；16, annular fixed seat；17, the first defining flange；18,
One limiting groove；19, the second defining flange；20, the second limiting groove；21, outer ring block；22, the second external annular groove；
23, retaining ring；24, wearing layer；25, O-ring seal.
Specific embodiment
With reference to the drawings and specific embodiments, the utility model is described in further detail.It should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, having read the utility model instruction
Content after, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms are equally fallen
In the scope of the appended claims of the present application.
A kind of shield machine single blade hobbing cutter, including cutter shaft 1, are arranged bearing insert 2 on the cutter shaft 1, the bearing insert 2 with
Cutter shaft 1 is interference fitted, and the bearing insert 2 includes bearing circle body 3, several through-holes are arranged on the bearing circle body 3, described logical
Solid lubricant 4 is set in hole, and bearing circle body 3 can use high strength and high hardness copper alloy, mention than common copper sheathing hardness, intensity
It doubles more, 3 surface drilling of bearing circle body inlays the solid lubricant based on graphite, and lubrication area accounts for about 25%, bearing insert 2
Itself generates one layer of solid-liquid mixed lubrication film when operation, plays the effect for reducing friction, greatly improves bearing insert
2 performance itself.It can be in heavy duty, high temperature, shock loading, it is difficult to be worked normally in the bad working environments such as oiling.The bearing insert 2
Outside is arranged cutter hub 5, the cutter hub 5 and 2 clearance fit of bearing insert, is arranged cutter ring 6 outside the cutter hub 5, the cutter hub 5
End cap A7 and end cap B8 is respectively set in two sides, and the end cap A7 and end cap B8 are set on cutter shaft 1, the end cap A7 and cutter hub
Thrust washer 9 is equipped between 5, between end cap B8 and cutter hub 5.
Using the hobboing cutter of the bearing arrangement, cutter starting torque is substantially reduced, and avoids cutter because of prime stratum bearing capacity
It is small, sufficiently large starting torque can not be improved and cause hobboing cutter eccentric wear, lead to rolling blade losing efficacy, the structure make the starting of hobboing cutter small torque at
It is possible, improves the scope of application of the hobboing cutter in shield-tunneling construction, reduce hobboing cutter eccentric wear probability, extends hobboing cutter and be applicable in the longevity
Life.
Further, it is equipped with Oil sealing assembly 10 between the end cap A7, end cap B8 and cutter hub 5, can effectively insulated outer
Dust, water, the dirt on boundary protect internal lubricant grease not reveal.
One of the specific embodiment that end cap A7, end cap B8 are connect with cutter shaft 1, on the both ends outer circumference surface of the cutter shaft 1
It is equipped with the first external annular groove 13, the inner peripheral surface of the end cap A and end cap B are equipped with suitable with 13 phase of the first external annular groove
The inner ring type fixed block 14 answered is bolted, convenient for the utility model between the inner ring type fixed block 14 and cutter shaft 1
Disassembly assembling.
The two of the specific embodiment that end cap A7, end cap B8 are connect with cutter shaft 1 are equipped on the end cap A7, end cap B8
Inner ring type groove 15, the inner ring type groove 15 is interior to be arranged annular fixed seat 16, and the annular fixed seat 16 connects with 1 screw thread of cutter shaft
It connects, is bolted between the annular fixed seat 16 and end cap B8, assembled convenient for the disassembly of the utility model.
The three of the specific embodiment that end cap A7, end cap B8 are connect with cutter shaft 1, the cutter shaft 1 lean on one end of proximal cover A7
Outer circumference surface is equipped with and lacks round block 11, and the end cap A7, which is equipped with, lacks round groove with lack that round block 11 is adapted
12, the round block 11 that lacks on cutter shaft 1 cooperates with the round groove 12 that lacks on lid A2, can play the role of positioning.Institute
It states cutter shaft 1 and is equipped with the first external annular groove 13 by one end outer circumference surface of proximal cover B8, the end cap B8 is equipped with and first
The adaptable inner ring type fixed block 14 of external annular groove 13, is bolted between the inner ring type fixed block 14 and cutter shaft 1,
It is assembled convenient for the disassembly of the utility model.When assembling the utility model, first end cap A7 can be covered on cutter shaft 1, then according to
Secondary installation bearing insert 2, cutter hub 5, end cap B8, the round block 11 that lacks on cutter shaft 1 lack round groove 12 mutually on lid A7
Cooperation, can play the role of positioning.
The four of the specific embodiment that end cap A7, end cap B8 are connect with cutter shaft 1, the cutter shaft 1 lean on one end of proximal cover A7
Outer circumference surface is equipped with and lacks round block 11, and the end cap A7, which is equipped with, lacks round groove with lack that round block 11 is adapted
12, the round block 11 that lacks on cutter shaft 1 cooperates with the round groove 12 that lacks on lid A2, can play the role of positioning.Institute
End cap B8 is stated equipped with inner ring type groove 15, the inner ring type groove 15 is interior to be arranged annular fixed seat 16, the annular fixed seat
16 are threadedly coupled with cutter shaft 1, are bolted between the annular fixed seat 16 and end cap B8, convenient for tearing open for the utility model
Unload assembling.
Further, the annular fixed seat 16 is equipped with several first defining flanges 17, and the end cap B8 is equipped with
The cooperation of the first limiting groove 18 being adapted with the first defining flange 17, defining flange 17 and limiting groove 18 is fixed to annular
Seat 16, which is mounted on end cap B8, plays the role of positioning, is easily installed fixation.
Further, the end cap A7 and end cap B8 is equipped with the second defining flange 19, the knife close to the side of cutter hub 5
Body 5 is equipped with the second limiting groove 20 matched with the second defining flange 19, convenient for determining for cutter hub 5 and end cap A7 and end cap B8
Position is fixed.
Further, one end outer circumference surface of the cutter hub 5 is equipped with outer ring block 21, and the internal diameter of the cutter ring 6 is less than
The other end outer circumference surface of the outer diameter of outer ring block 21, the cutter hub 5 is equipped with the second external annular groove 22, second outer ring
Retaining ring 23 is equipped in connected in star 22, the outer diameter of retaining ring 23 is greater than the internal diameter of cutter ring 6, and retaining ring 23 is by two semicircle retaining ring welding
It forms together.When assembling cutter hub 5 and cutter ring 6, cutter ring 6 is inserted on cutter hub 5 from 21 side of the second external annular groove, outside
Collar stop 21 can stop cutter ring 6 to be pierced by cutter hub 5, then in the second external annular groove 22 and weld two semicircle shield ring sleeves
It is connected together enough at retaining ring 23, consequently facilitating the installing and dismounting of cutter ring 6 and replacement.
Further, the thrust washer 9 is interference fitted with end cap A7, end cap B8, between the thrust washer 9 and cutter hub 5
Gap cooperation.
Further, be equipped with wearing layer 24 on the external arc surface of the end cap A7 and end cap B8, improve end cap A7 and
The service life of end cap B8.
Further, O-ring seal 25 is equipped between the end cap A7, end cap B8 and cutter shaft 1.
Embodiment 1
A kind of shield machine single blade hobbing cutter, including cutter shaft 1, are arranged bearing insert 2 on the cutter shaft 1, the bearing insert 2 with
Cutter shaft 1 is interference fitted, and the bearing insert 2 includes bearing circle body 3, several through-holes are arranged on the bearing circle body 3, described logical
Solid lubricant 4 is set in hole, and bearing circle body 3 can use high strength and high hardness copper alloy, mention than common copper sheathing hardness, intensity
It doubles more, 3 surface drilling of bearing circle body inlays the solid lubricant based on graphite, and lubrication area accounts for about 25%, bearing insert 2
Itself generates one layer of solid-liquid mixed lubrication film when operation, plays the effect for reducing friction, greatly improves bearing insert
2 performance itself.It can be in heavy duty, high temperature, shock loading, it is difficult to be worked normally in the bad working environments such as oiling.The bearing insert 2
Outside is arranged cutter hub 5, the cutter hub 5 and 2 clearance fit of bearing insert, is arranged cutter ring 6 outside the cutter hub 5, the cutter hub 5
End cap A7 and end cap B8 is respectively set in two sides, and the end cap A7 and end cap B8 are set on cutter shaft 1, the end cap A7 and cutter hub
Thrust washer 9 is equipped between 5, between end cap B8 and cutter hub 5.Oil sealing is equipped between the end cap A7, end cap B8 and cutter hub 5
Component 10 can effectively insulate extraneous dust, water, dirt, and internal lubricant grease is protected not reveal.The cutter shaft 1 is close
One end outer circumference surface of end cap A7, which is equipped with, lacks round block 11, and the end cap A7 is equipped with and lacks what round block 11 was adapted
Round groove 12 is lacked, the round block 11 that lacks on cutter shaft 1 cooperates with the round groove 12 that lacks on lid A2, can play positioning
Effect.The cutter shaft 1 is equipped with the first external annular groove 13 by one end outer circumference surface of proximal cover B8, sets on the end cap B8
There is the inner ring type fixed block 14 being adapted with the first external annular groove 13, passes through between the inner ring type fixed block 14 and cutter shaft 1
It is bolted, is assembled convenient for the disassembly of the utility model.The end cap A7 and end cap B8 is equipped with second close to the side of cutter hub 5
Defining flange 19, the cutter hub 5 are equipped with the second limiting groove 20 for matching with the second defining flange 19, convenient for cutter hub 5 with
The positioning of end cap A7 and end cap B8 are fixed.One end outer circumference surface of the cutter hub 5 is equipped with outer ring block 21, the cutter ring 6
Internal diameter is less than the outer diameter of outer ring block 21, and the other end outer circumference surface of the cutter hub 5 is equipped with the second external annular groove 22, described
Retaining ring 23 is equipped in second external annular groove 22, the outer diameter of retaining ring 23 is greater than the internal diameter of cutter ring 6, and retaining ring 23 is by two semicircles
Retaining ring welds together composition.When assembling cutter hub 5 and cutter ring 6, cutter ring 6 is inserted in knife from 21 side of the second external annular groove
On body 5, outer ring block 21 can stop cutter ring 6 to be pierced by cutter hub 5, then by two semicircle shield ring sleeves in the second external annular groove
In 22 and weld together enough at retaining ring 23, consequently facilitating the installing and dismounting of cutter ring 6 and replacement.The thrust washer 9 and end cap
A7, end cap B8 interference fit, the thrust washer 9 and 5 clearance fit of cutter hub.The external arc surface of the end cap A7 and end cap B8
On be equipped with wearing layer 24, improve the service life of end cap A7 and end cap B8.Between the end cap A7, end cap B8 and cutter shaft 1
Equipped with O-ring seal 25.Using the hobboing cutter of the bearing arrangement, cutter starting torque is substantially reduced, and avoids cutter because of prime stratum
Bearing capacity is small, can not improve sufficiently large starting torque and cause hobboing cutter eccentric wear, lead to rolling blade losing efficacy, which makes the small torsion of hobboing cutter
Square starting is possibly realized, and is improved the scope of application of the hobboing cutter in shield-tunneling construction, is reduced hobboing cutter eccentric wear probability, extend hobboing cutter
Shelf life.
Embodiment 2
A kind of shield machine single blade hobbing cutter, including cutter shaft 1, are arranged bearing insert 2 on the cutter shaft 1, the bearing insert 2 with
Cutter shaft 1 is interference fitted, and the bearing insert 2 includes bearing circle body 3, several through-holes are arranged on the bearing circle body 3, described logical
Solid lubricant 4 is set in hole, cutter hub 5, the cutter hub 5 and 2 clearance fit of bearing insert are arranged outside the bearing insert 2,
Cutter ring 6 is arranged outside the cutter hub 5, end cap A7 and end cap B8, the end cap A7 and end cap is respectively set in the two sides of the cutter hub 5
B8 is set on cutter shaft 1, is equipped with thrust washer 9 between the end cap A7 and cutter hub 5, between end cap B8 and cutter hub 5.It is described
Oil sealing assembly 10 is equipped between end cap A7, end cap B8 and cutter hub 5.The cutter shaft 1 is on one end outer circumference surface of proximal cover A7
Equipped with lacking round block 11, the end cap A7, which is equipped with, lacks round groove 12, the end cap with lack that round block 11 is adapted
B8 is equipped with inner ring type groove 15, and annular fixed seat 16, the annular fixed seat 16 and knife is arranged in the inner ring type groove 15
Axis 1 is threadedly coupled, and is bolted between the annular fixed seat 16 and end cap B8.If the annular fixed seat 16 is equipped with
Dry the first defining flange 17, the end cap B8 are equipped with the first limiting groove 18 being adapted with the first defining flange 17, limit
The cooperation of position flange 17 and limiting groove 18, which is mounted on end cap B8 annular fixed seat 16, plays the role of positioning, is easily installed
It is fixed.The end cap A7 and end cap B8 is equipped with the second defining flange 19 close to the side of cutter hub 5, the cutter hub 5 be equipped with
The second limiting groove 20 that second defining flange 19 matches.One end outer circumference surface of the cutter hub 5 is equipped with outer ring block 21,
The internal diameter of the cutter ring 6 is less than the outer diameter of outer ring block 21, and the other end outer circumference surface of the cutter hub 5 is equipped with the second outer ring
Groove 22, second external annular groove 22 is interior to be equipped with retaining ring 23.The thrust washer 9 is interference fitted with end cap A7, end cap B8,
The thrust washer 9 and 5 clearance fit of cutter hub.Wearing layer 24 is equipped on the external arc surface of the end cap A7 and end cap B8.
O-ring seal 25 is equipped between the end cap A7, end cap B8 and cutter shaft 1.Using the hobboing cutter of the bearing arrangement, cutter starting is turned round
Square substantially reduces, and avoids cutter because prime stratum bearing capacity is small, can not improve sufficiently large starting torque and cause hobboing cutter eccentric wear,
Lead to rolling blade losing efficacy, which makes it possible that the small torque of hobboing cutter starts, the scope of application of the hobboing cutter in shield-tunneling construction is improved,
Hobboing cutter eccentric wear probability is reduced, hobboing cutter shelf life is extended.
Claims (10)
1. a kind of shield machine single blade hobbing cutter, including cutter shaft (1), it is characterized in that: bearing insert (2) are set on the cutter shaft (1), institute
It states bearing insert (2) and cutter shaft (1) to be interference fitted, the bearing insert (2) includes bearing circle body (3), the bearing circle body (3)
Upper several through-holes of setting, the through-hole is interior to be arranged solid lubricant (4), is arranged cutter hub (5) outside the bearing insert (2),
The cutter hub (5) and bearing insert (2) clearance fit, the cutter hub (5) is external to be arranged cutter ring (6), the two sides of the cutter hub (5)
End cap A (7) and end cap B (8) is respectively set, the end cap A (7) and end cap B (8) are set on cutter shaft (1), the end cap A
(7) thrust washer (9) are equipped between cutter hub (5), between end cap B (8) and cutter hub (5).
2. a kind of shield machine single blade hobbing cutter according to claim 1, it is characterized in that: the end cap A (7), end cap B (8) with
Oil sealing assembly (10) are equipped between cutter hub (5).
3. a kind of shield machine single blade hobbing cutter according to claim 1, it is characterized in that: the cutter shaft (1) leans on proximal cover A (7)
One end outer circumference surface be equipped with lack round block (11), the end cap A (7) be equipped with lack round block (11) be adapted
It lacking round groove (12), one end outer circumference surface of the cutter shaft (1) by proximal cover B (8) is equipped with the first external annular groove (13),
The end cap B (8) is equipped with the inner ring type fixed block (14) being adapted with the first external annular groove (13), and the inner ring type is fixed
It is bolted between block (14) and cutter shaft (1).
4. a kind of shield machine single blade hobbing cutter according to claim 1, it is characterized in that: the cutter shaft (1) leans on proximal cover A (7)
One end outer circumference surface be equipped with lack round block (11), the end cap A (7) be equipped with lack round block (11) be adapted
It lacks round groove (12), the end cap B (8) is equipped with inner ring type groove (15), setting annular in the inner ring type groove (15)
Fixing seat (16), the annular fixed seat (16) are threadedly coupled with cutter shaft (1), the annular fixed seat (16) and end cap B (8) it
Between be bolted.
5. a kind of shield machine single blade hobbing cutter according to claim 4, it is characterized in that: the annular fixed seat (16) is equipped with
Several first defining flanges (17), it is recessed that the end cap B (8) is equipped with the first limit being adapted with the first defining flange (17)
Slot (18).
6. a kind of shield machine single blade hobbing cutter according to claim 1, it is characterized in that: the end cap A (7) and end cap B (8) are leaned on
The side of nearly cutter hub (5) is equipped with the second defining flange (19), and the cutter hub (5) is equipped with to be matched with the second defining flange (19)
The second limiting groove (20) closed.
7. a kind of shield machine single blade hobbing cutter according to claim 1, it is characterized in that: one end excircle of the cutter hub (5)
Face is equipped with outer ring block (21), and the internal diameter of the cutter ring (6) is less than the outer diameter of outer ring block (21), the cutter hub (5)
Other end outer circumference surface is equipped with the second external annular groove (22), is equipped with retaining ring (23) in second external annular groove (22).
8. a kind of shield machine single blade hobbing cutter according to claim 1, it is characterized in that: the thrust washer (9) and end cap A
(7), end cap B (8) is interference fitted, the thrust washer (9) and cutter hub (5) clearance fit.
9. a kind of shield machine single blade hobbing cutter according to claim 1, it is characterized in that: the end cap A (7) and end cap B (8)
Wearing layer (24) are equipped on external arc surface.
10. a kind of shield machine single blade hobbing cutter according to claim 1, it is characterized in that: the end cap A (7), end cap B (8) with
O-ring seal (25) are equipped between cutter shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820647069.7U CN208203276U (en) | 2018-05-03 | 2018-05-03 | A kind of shield machine single blade hobbing cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820647069.7U CN208203276U (en) | 2018-05-03 | 2018-05-03 | A kind of shield machine single blade hobbing cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203276U true CN208203276U (en) | 2018-12-07 |
Family
ID=64522855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820647069.7U Expired - Fee Related CN208203276U (en) | 2018-05-03 | 2018-05-03 | A kind of shield machine single blade hobbing cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208203276U (en) |
-
2018
- 2018-05-03 CN CN201820647069.7U patent/CN208203276U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20190503 |