CN207863964U - A kind of hob cutter for shield machine - Google Patents
A kind of hob cutter for shield machine Download PDFInfo
- Publication number
- CN207863964U CN207863964U CN201820089192.1U CN201820089192U CN207863964U CN 207863964 U CN207863964 U CN 207863964U CN 201820089192 U CN201820089192 U CN 201820089192U CN 207863964 U CN207863964 U CN 207863964U
- Authority
- CN
- China
- Prior art keywords
- cutter
- shaft
- ring
- cutter ring
- shield machine
- 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 - Fee Related
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of hob cutter for shield machine.A kind of hob cutter for shield machine, including cutter hub and shaft, the cutter hub are annular, cutter hub is mounted on by a pair of bearings in shaft, sealing ring is set outside bearing, and the sealing ring outer end is provided with drive end bearing bracket and rear end cap, and the drive end bearing bracket and rear end cap are mounted on the both ends of shaft by clearance fit；End cap is raised backward in rear end cap plane for the shaft, opens up oil filler point in the shaft, oiling hole deviation penetrates rotation shaft opening and constitutes cavity between cutter hub and shaft.The hob cutter for shield machine of the utility model, by oil filler point setting in shaft, oil filler point constitutes cavity across rotation shaft opening between cutter hub and shaft, simple in structure, does not influence the hardness of shaft；The problem of avoiding end cap setting oil filler point infiltrations silt easy to wear, while constituting cavity between cutter hub and shaft and can exclude the air of cavity to bearing direction oiling, preferably make lubricating oil full of bearing and cavity.
Description
Technical field
The utility model is related to shield machine accessories field more particularly to a kind of hob cutter for shield machine.
Background technology
Shield method is a kind of construction method in subsurface bored tunnel, and shield machine is the most important of this construction method
Unique construction equipment is one and has multiple functions in the comprehensive equipment of one, it, which has gathered in Tunnel Engineering, excavates, goes out
The function of the whole such as soil, supporting, slip casting, guiding.Include functionally excavation system, main drive system, propulsion system, go out slag system
System, filling system, grease system, hydraulic system, electric control system, automatic guiding system and ventilation, water supply, power supply system,
Harmful gas detecting device etc..Cutter head of shield machine is the core of the capital equipment component and shield machine in shield machine excavation system
Center portion part, its intensity and overall stiffness all directly influence the speed and cost of construction driving, and the maintenance process that is out of order
It is difficult.Cutterhead is a cutting disk body for carrying multiple feed wells, is located at the forefront of shield machine, for cutting the soil body.Cutterhead
Operation principle can simply be compared to be a shaver, soil sandstone is gradually become into fragment during advancing, then is discharged
In " storeroom " after to cutterhead；Shield machine cutter is the main tool of shield tunneling, grasps its correctly selection and user
Method is reasonably arranged on cutterhead, most important for the drivage efficiency, the good economic benefit of creation that improve shield.
Shield can encounter different stratum in the construction process, from mud, clay, layer of sand to soft rock and hard rock.Cutter cutterhead can not possibly
It is machine-made, it is necessary to which personalized designs are carried out according to engineering geological condition.
Hobboing cutter is the important composition component in shield machine, is mainly used in being crushed, hard rock, is a kind of simple in structure, broken rock
The cutter that amount is big, efficiency of breaking rock is high.General hobboing cutter is connect by bearing with hobboing cutter shaft, is needed in practicality often to inside hobboing cutter
Lubricating oil or grease are injected, to reduce the frictional dissipation between each parts.Traditional hobboing cutter is to drill to pass to from end cap
Hobboing cutter inner cavity, lubricating oil or grease are injected from the hole on end cap, are delivered to hobboing cutter inner cavity, then with silk plug by orifice sealing,
But the mode efficiency from unilateral oiling is low, particularly with double-edged hobbing cutter, hobboing cutter cavity volume increases, and oil may not be able to fill rolling
Knife inner cavity；In addition, drilling may cause the firm and wearability of end cap to be deteriorated on end cap, and during hobboing cutter use, drilling
The part of tapping is more easy to wear, is that lubricant reservoir oil leak and silt penetrate into hobboing cutter inner cavity, makes troubles to production assembly, therefore need
It is proposed a kind of operational and stronger oiling mode of practicability.
Utility model content
In order to solve the shortcoming present in above-mentioned technology, the utility model provides a kind of hob cutter for shield machine.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of hob cutter for shield machine, including
Cutter hub and shaft, the cutter hub are annular, and cutter hub is mounted on by a pair of bearings in shaft, and sealing ring is arranged outside the bearing,
The sealing ring outer end is provided with drive end bearing bracket and rear end cap, and the drive end bearing bracket and rear end cap are mounted on shaft by clearance fit
Both ends；End cap is raised backward in rear end cap plane for the shaft, opens up oil filler point in the shaft, oiling hole deviation penetrates shaft and opens
Mouth constitutes cavity between cutter hub and shaft.
Further, silk plug is arranged in the opening portion of shaft in the oil filler point.
Further, the cutter hub further includes the first cutter ring and the second cutter ring being wholely set, and first cutter ring is located at
Cutter hub front end, the second cutter ring are located at cutter hub rear end, and the diameter of the first cutter ring is less than the diameter of the second cutter ring；First cutter ring with
Second cutter ring is not connected with each other, and the cutter hub of the first cutter ring and the second cutter ring compartment is recessed inwardly.First cutter ring and
It is embedded with multiple cutters tooth on two cutter rings, silver soldering layer is equipped between cutter tooth and the first cutter ring and the second cutter ring.
Further, the cutter tooth is equidistantly distributed along the first cutter ring or the second cutter ring, end expose the first cutter ring or
Second cutter ring forms hemispheric protrusion, and the cutter tooth on the first cutter ring or the second cutter ring has two rows, two rows of cutters tooth staggeredly to set respectively
It sets.
Further, second cutter ring is located at the cutter tooth of cutter hub rear end, and the portion perimeter of each cutter tooth protrusion cutter ring is set
There are silver soldering circle, the silver soldering layer of the silver soldering circle and cutter tooth and the second cutter ring to be structure as a whole.
The hob cutter for shield machine of the utility model, by oil filler point setting in shaft, oil filler point passes through rotation shaft opening in knife
Cavity is constituted between body and shaft, it is simple in structure, the hardness of shaft is not influenced；Avoid end cap setting oil filler point infiltration mud easy to wear
Husky problem, while composition cavity can exclude the air of cavity to bearing direction oiling between cutter hub and shaft, preferably make
Lubricating oil is full of bearing and cavity.
By the setting of two different cutter rings of diameter, when hobboing cutter body rotation, shape between the first cutter ring and the second cutter ring
At speed discrepancy, so that the first cutter ring and the second cutter ring is formed relative motion, and then realize the thorough crushing to rock mass, overcome simultaneously
The inconsistent problem of the hob abrasion degree at cutterhead edge；It is connected using silver soldering layer between cutter tooth and cutter ring, silver soldering layer is more common
Soldering is more secured, overcomes indentation and is fixed difficulty of processing greatly with disadvantage of high cost, increases service life；First cutter ring
It is staggered with the cutter tooth on the second cutter ring, can more improve the efficiency of rock crushing；For the cutter tooth positioned at hobboing cutter rear end,
It is reinforced using silver soldering circle, can be more wear-resisting, increase the service life used, reduces abrasion and replace.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1, cutter hub；2, the first cutter ring；3, the second cutter ring；4, cutter tooth；5, shaft；6, bearing；7, drive end bearing bracket；8, after
End cap；9, oil filler point；10, cavity；11, silk plug.
Specific implementation mode
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Hob cutter for shield machine shown in FIG. 1, including cutter hub 1 and shaft 5, the cutter hub 1 are annular, and cutter hub 1 passes through a pair
Bearing 6 is mounted in shaft 5, sealing ring is arranged outside the bearing 6, the sealing ring outer end is provided with drive end bearing bracket 7 and rear end cap
8, the drive end bearing bracket 7 and rear end cap 8 are mounted on the both ends of shaft 5 by clearance fit；The shaft 5 in 8 plane of rear end cap to
Rear end cap is raised, opens up oil filler point 9 in the shaft, oil filler point 9 tiltedly penetrates rotation shaft opening and constitutes cavity between cutter hub and shaft
10, silk plug 11 is arranged in the opening portion of shaft 5 in the oil filler point 9.
Cutter hub 1 includes the first cutter ring 2 and the second cutter ring 3 being wholely set.First cutter ring 2 is located at 1 front end of cutter hub, the second knife
Circle 3 is located at 1 rear end of cutter hub, and the diameter of the first cutter ring 2 is less than the diameter of the second cutter ring 3；First cutter ring, 2 and second cutter ring 3
It is not connected with each other, the cutter hub 1 of the first cutter ring 2 and 3 compartment of the second cutter ring is recessed inwardly.
Multiple cutters tooth 4 are embedded on first cutter ring 2 and the second cutter ring 3, the cutter tooth 4 is equidistantly distributed along cutter ring, end
The first cutter ring 1 is exposed in portion or the second cutter ring 1 forms hemispheric protrusion.It is equipped between cutter tooth 4 and the first cutter ring 2 and the second cutter ring 4
The thickness of silver soldering layer, the silver soldering layer is 0.5~1mm.Cutter tooth 4 on first cutter ring 2 or the second cutter ring 3 has a two rows respectively, and two
Row's cutter tooth is staggered.Second cutter ring 3 is located at the cutter tooth of 1 rear end of cutter hub, and the portion perimeter of each cutter tooth protrusion cutter ring is equipped with silver
Weldering circle 5, silver soldering circle and the silver soldering layer of cutter tooth and the second cutter ring are structure as a whole.
The above embodiment is not limitations of the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made within the scope of the technical solution of the utility model,
Also the scope of protection of the utility model is belonged to.
Claims (5)
1. a kind of hob cutter for shield machine, including cutter hub and shaft, the cutter hub is annular, and cutter hub is mounted on by a pair of bearings to be turned
On axis, it is characterised in that：Sealing ring is set outside the bearing, the sealing ring outer end is provided with drive end bearing bracket and rear end cap, described
Drive end bearing bracket and rear end cap are mounted on the both ends of shaft by clearance fit；End cap is raised backward in rear end cap plane for the shaft,
Oil filler point is opened up in the shaft, oiling hole deviation penetrates rotation shaft opening and constitutes cavity between cutter hub and shaft.
2. hob cutter for shield machine according to claim 1, it is characterised in that：The oil filler point is arranged in the opening portion of shaft
Silk plug.
3. hob cutter for shield machine according to claim 2, it is characterised in that：The cutter hub further includes first be wholely set
Cutter ring and the second cutter ring, first cutter ring are located at cutter hub front end, and the second cutter ring is located at cutter hub rear end, and the diameter of the first cutter ring is small
In the diameter of the second cutter ring；First cutter ring is not connected with each other with the second cutter ring, the first cutter ring and the second cutter ring compartment
Cutter hub be recessed inwardly, multiple cutters tooth, cutter tooth and the first cutter ring and the second knife are embedded on first cutter ring and the second cutter ring
Silver soldering layer is equipped between circle.
4. hob cutter for shield machine according to claim 3, it is characterised in that：The cutter tooth is along the first cutter ring or the second cutter ring
It equidistantly distributes, end exposes the first cutter ring or the second cutter ring and forms hemispheric protrusion, on the first cutter ring or the second cutter ring
Cutter tooth there are two rows, two rows of cutters tooth to be staggered respectively.
5. hob cutter for shield machine according to claim 4, it is characterised in that：Second cutter ring is located at the knife of cutter hub rear end
The portion perimeter of tooth, each cutter tooth protrusion cutter ring is equipped with silver soldering circle, and the silver soldering layer of the silver soldering circle and cutter tooth and the second cutter ring is
Integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820089192.1U CN207863964U (en) | 2018-01-19 | 2018-01-19 | A kind of hob cutter for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820089192.1U CN207863964U (en) | 2018-01-19 | 2018-01-19 | A kind of hob cutter for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207863964U true CN207863964U (en) | 2018-09-14 |
Family
ID=63462385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820089192.1U Expired - Fee Related CN207863964U (en) | 2018-01-19 | 2018-01-19 | A kind of hob cutter for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207863964U (en) |
-
2018
- 2018-01-19 CN CN201820089192.1U patent/CN207863964U/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 |
Granted publication date: 20180914 Termination date: 20220119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |