CN208966344U - Shield hobboing cutter with ultrasonic activation effect - Google Patents
Shield hobboing cutter with ultrasonic activation effect Download PDFInfo
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- CN208966344U CN208966344U CN201821861291.3U CN201821861291U CN208966344U CN 208966344 U CN208966344 U CN 208966344U CN 201821861291 U CN201821861291 U CN 201821861291U CN 208966344 U CN208966344 U CN 208966344U
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- cutter
- ring
- ultrasonic
- rock
- hobboing cutter
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Abstract
Shield hobboing cutter with ultrasonic activation effect belongs to tunneling shield construction field, and hobboing cutter includes conducting system, ultrasonic vibrator and tooling system, and conducting system includes conductance wire terminal, brush, conducting ring and conductive channel；Ultrasonic vibrator includes piezo ceramic element, disc spring and insulation board；Tooling system includes cutter ring, cutter hub and cutter shaft, when hobboing cutter works, by brush and conducting ring by plant-grid connection ultrasonic vibrator, the ultrasonic activation effect of ultrasonic vibrator generation close to rock intrinsic frequency passes to cutter ring and is applied on rock, and the rock below hobboing cutter bears the effect of the rolling force and ultrasonic activation power of hobboing cutter simultaneously.The utility model makes ultrasonic vibrator and traditional shield hobboing cutter cutter ring are compound to be capable of inside hobboing cutter cutter ring spontaneous outside generate and is directed toward the ultrasonic activation of rock stress surface, realize continuous ultrasonic activation power and rolling force compound action cutting and crushing rock, hobboing cutter detritus efficiency is improved, the service life of hobboing cutter is extended.
Description
Technical field
The utility model relates to a kind of shield hobboing cutters with ultrasonic activation effect, and which are mainly applied to tunneling shields to apply
Work field.
Background technique
With the rapid development of social economy, infrastructure construction process is constantly accelerated, and the development and utilization of the underground space are not
It is broken into as the development priority in each area.Rock tunnel(ling) machine is excellent because its speed of application is fast, cavitation quality is high, operation continuity is good etc.
Point is increasingly becoming the equipment that tunnel is preferentially selected.Its Tunneling Principle is that the hobboing cutter on cutterhead is pressed in rock by oil cylinder
Surface, when the pressure of application is greater than the compression strength of rock, hobboing cutter is pressed into rock, and rock will crack, when adjacent two
When the crackle perforation that hobboing cutter generates, rock falls therebetween achieve the effect that fragmented rock body.Ground consisting of hard rock rock is with higher
Intensity, destroying its required pressure drop at this time increased dramatically, and when quartz content is higher in stratum, the abrasiveness of rock compared with
By force, cutter works under conditions of strong extruding, high grinding, and the speed of damage failure will significantly be accelerated, therefore in hard rock item
The penetration rate of tunnel piercing considerably increases construction cost compared with slow, tool wear is very fast under part.Currently, ground consisting of hard rock tunnel
There is a problem of that penetration rate is slow, cutter life is short, construction cost is high in tunneling construction, and what is be widely used is being pushed away using hobboing cutter
There are also biggish rooms for promotion for the efficiency of breaking rock of rolling cut rock method under the action of power and torque.
Ultrasonic activation can generate shock loading to rock, promote the crack propagation in rock, contribute to form broken
Cave can reduce the intensity of rock.Ultrasonic activation close to its intrinsic frequency is applied to rock, rock can be made to generate altogether
Vibration, internal fatigue damage accumulation achieve the purpose that make it easier to broken to weaken rock.Ultrasonic activation detritus has
The advantages such as little energy, required axial compressive force be low are consumed, space drilling field has been attempted for.
Has patent document at present in terms of the driving of rock stratum, such as: publication No. " CN107780946A " discloses one kind and is based on
The cutting head of roadheader of ultrasonic resonance, cuts demand for coal bearing seams, is added at the roller of heading machine cutting head rear super
Sonic wave vibrator, when driving, need to be divided to ultrasonic activation to weaken two stage blocked operations of rock and cutting and crushing rock, and can not
Accurately ultrasonic activation is applied on each cutting tool；Publication No. " CN104612684A " discloses a kind of ultrasonic impact
Pick, in pick-like bit rear end, installation ultrasonic wave transmitting module enhances crushing efficiency using micro-vibration, and pick is in use process
Middle ultrasonic activation direction can not efficiently be acted on using ultrasonic activation with rock stress surface there are certain angle always, and mesh
It is relatively soft to mark stratum.Publication number " CN105422114A " discloses a kind of efficient detritus knife of the TBM with ultrasonic vibrator
Disk forms high frequency sound wave vibration and revolution joint detritus driving in the cutter shaft rear mounting ultrasonic vibrator of development machine hobboing cutter.
Currently, capableing of the self start type ultrasonic activation cutting and crushing hard rock cutter of continuous work still for high-intensitive brittle rock stratum
It has not been reported.
Utility model content
The purpose of the utility model is to provide a kind of shield hobboing cutter with ultrasonic activation effect, its knives of the specific hobboing cutter
Circle inside is capable of the spontaneous outside ultrasonic activation for generating direction rock stress surface and realizes continuous work, for solving hard
The penetration rate of tunnel piercing is compared with the problem slow, tool wear is very fast, construction cost is high under the conditions of rock.
To achieve the goals above, the utility model adopts the following technical solutions: the shield with ultrasonic activation effect
Structure hobboing cutter, characterized in that it include: conducting system, ultrasonic vibrator and tooling system,
The conducting system includes that conductance wire terminal, brush, conducting ring, insulating trip, axial conduction channel and circumference are led
One end of electric channel, the conductance wire terminal is connect by electric wire with external power supply, and the other end of conductance wire terminal passes through brush
It is connect with conducting ring；The conducting ring is set on cutter hub, and insulating trip has been evenly arranged on conducting ring；The insulating trip is used for
Conducting ring is divided into several independent working regions, and is each provided with one in the middle part of the corresponding conducting ring in each working region
Axial conduction channel；The circumference conductive channel is connect with axial conduction channel, and the setting of circumference conductive channel is in adjacent two ultrasound
Between wave vibrator, adjacent two ultrasonic vibrator is accessed by same circuit by circumference conductive channel；It, will be electric when hobboing cutter works
Brush finger guarantees that two ultrasonic vibrators nearest apart from rock stress surface are in and is powered on state to rock；
The ultrasonic vibrator includes piezo ceramic element, insulation board and disc spring, and the piezo ceramic element can edge
The radial direction of cutter ring is mobile, and the side of piezo ceramic element is connected by insulation board with disc spring, piezo ceramic element it is another
Side is in contact with cutter ring；One end of disc spring is pressed on the outer ring of rolling bearing, and the other end of disc spring is applied anti-by rolling bearing
Piezo ceramic element is tightly pressed against on cutter ring by active force；
The tooling system includes cutter ring, cutter ring snap ring, cutter hub, rolling bearing and cutter shaft, and the cutter ring passes through cutter ring
Snap ring is fixed on cutter hub, and cutter hub is radially slotted for placing ultrasonic vibrator, and cutter hub is sitting in cutter shaft by rolling bearing
On, when hobboing cutter works, cutter ring generates the continuous ultrasonic activation for being directed toward rock under the action of ultrasonic vibrator.
Further, the shield hobboing cutter with ultrasonic activation effect, characterized in that it further include end cap, the end
Lid is moved for fixing rolling bearing position, to limit rolling bearing and axially generate along cutter shaft.
One embodiment of the utility model is provided with an insulating trip every 45 ° along its circumferencial direction on conducting ring,
To which conducting ring is divided into eight independent working regions.
Another embodiment of the utility model is provided with an insulation on conducting ring along its circumferencial direction every 30 °
Piece, so that conducting ring is divided into 12 independent working regions.
Through the above design, the utility model can be brought the following benefits: the utility model shakes ultrasonic wave
It is dynamic to be combined with traditional hobboing cutter cutter ring, in hobboing cutter work can spontaneous generation ultrasonic activation, and pass through conducting system
Cooperation can guarantee ultrasonic activation effect is acted perpendicularly on rock stress surface always, make rock bear ultrasonic activation power with
The synergistic effect of rolling force reduces the intensity of rock by applying continuous ultrasonic activation effect to rock, to reduce rolling
Axial compressive force required for knife injection rock, improves the efficiency of hobboing cutter fractured rock, while improving hobboing cutter working environment, thus greatly
Amplitude increases driving speed, and increases substantially the service life of hobboing cutter, finally obtains good economic benefit.The device is to improve rolling
Knife detritus efficiency provides new thinking, has the characteristics that efficient, energy conservation, economy compared to existing hob-cutter structure.
Detailed description of the invention
Specific embodiment of the present utility model is further described in detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the shield hobboing cutter in the utility model embodiment with ultrasonic activation effect；
Fig. 2 is the side semi-cutaway of the shield hobboing cutter in the utility model embodiment with ultrasonic activation effect；
Fig. 3 is the working state schematic representation of the shield hobboing cutter in the utility model embodiment with ultrasonic activation effect.
It is respectively marked in figure as follows: 1- cutter ring；2- cutter ring snap ring；3- cutter hub；4- rolling bearing；5- cutter shaft；6- disc spring；7- is exhausted
Listrium；8- piezo ceramic element；9- axial conduction channel；10- brush；11- conductance wire terminal；12- conducting ring；13- insulating trip；
14- circumference conductive channel；15- end cap；16- power supply box；17- rock.
Specific embodiment
It is practical new to this below with reference to preferred embodiment and Fig. 1, Fig. 2 and Fig. 3 in order to illustrate more clearly of the utility model
Type is described further.It should be understood by those skilled in the art that.Specifically described content is illustrative rather than limit below
Property processed, it should not limit the protection scope of the present invention.
The utility model proposes the shield hobboing cutter with ultrasonic activation effect working principle:
Conducting ring 12 is divided for several independent working regions by insulating trip 13, each working region is corresponding to two
Ultrasonic vibrator power supply, when hobboing cutter works, brush 10 is vertical downwardly directed to rock 17, is always ensured that only contact 17 He of rock
The corresponding two ultrasonic vibrators work of 17 region of rock will be contacted, guarantee ultrasonic activation perpendicular acting rock 17 by
On power face；The vibration that ultrasonic vibrator is generated close to 17 intrinsic frequency of rock is passed down to cutter ring 1, and rock 17 is in cutter ring 1
Rolling and ultrasonic activation collective effect under be crushed.
The shield hobboing cutter with ultrasonic activation effect proposed in the present embodiment includes conducting system, ultrasonic vibrator
And tooling system,
The conducting system includes conductance wire terminal 11, brush 10, conducting ring 12, insulating trip 13, axial conduction channel 9
And circumference conductive channel 14, conductance wire terminal 11 are connect by electric wire with external power supply, external power supply is using electricity in the present embodiment
Electric lead built in source case 16, axial conduction channel 9 and circumference conductive channel 14, conductance wire terminal 11 and conducting ring 12 pass through brush
10 connections, conducting ring 12 are set on cutter hub 3, and an insulating trip is provided with every 45 ° along its circumferencial direction on conducting ring 12
13, so that 12 eight equal parts of conducting ring are obtained eight independent working regions, and in the corresponding conducting ring 12 in each working region
Middle part is each provided with an axial conduction channel 9；The circumference conductive channel 14 is connect with axial conduction channel 9, and circumference is conductive
Channel 14 is arranged between adjacent two ultrasonic vibrator, is accessed adjacent two ultrasonic vibrator by circumference conductive channel 14
Same circuit；When hobboing cutter works, brush 10 is directed toward rock 17, guarantees the two ultrasonic waves vibration nearest apart from 17 stress surface of rock
Dynamic device, which is in, is powered on state.
The ultrasonic vibrator includes piezo ceramic element 8, insulation board 7 and disc spring 6, the piezo ceramic element 8
It can be moved along the radial direction of cutter ring 1, the side of piezo ceramic element 8 is connected by insulation board 7 with disc spring 6, piezoelectric ceramics group
The other side of part 8 is in contact with cutter ring 1；One end of disc spring 6 is pressed on the outer ring of rolling bearing 4, and the other end of disc spring 6 is by rolling
Piezo ceramic element 8 is tightly pressed against on cutter ring 1 by the reaction force that bearing 4 applies, and can change piezoelectricity pottery by adjusting disc spring 6
The size for the ultrasonic wave excitation power that porcelain component 8 exports.
The tooling system includes cutter ring 1, cutter ring snap ring 2, cutter hub 3, rolling bearing 4 and cutter shaft 5, and the cutter ring 1 is logical
It crosses cutter ring snap ring 2 to be fixed on cutter hub 3, cutter hub 3 is radially slotted for placing ultrasonic vibrator, and cutter hub 3 passes through the axis of rolling
It holds 4 to be sitting on cutter shaft 5, rolling bearing 4 carries out position by end cap 15 and fixes, to limit rolling bearing 4 along the axial production of cutter shaft 5
Raw movement, when hobboing cutter works, cutter ring 1 generates the continuous ultrasonic wave vibration for being directed toward rock 17 under the action of ultrasonic vibrator
It is dynamic.
The method for carrying out broken rock using the shield hobboing cutter with ultrasonic activation effect, specific work process is such as
Under:
A) power supply box 16 to be opened to switch, electric current is contacted through 11 lead-in brush 10 of conductance wire terminal, brush 10 with conducting ring 12,
Electric current is introduced into 12 corresponding two ultrasonic vibrators of conducting ring in the working region through conductive channel；
B) two ultrasonic vibrators are started to work, and are generated ultrasonic frequency and are vibrated and radially pass to cutter ring 1；
C) hobboing cutter is pressed in 17 surface of rock, hobboing cutter wedges rock under the collective effect of ambient pressure and ultrasonic activation power
Stone 17 guarantees that brush 10 is directed toward rock 17 straight down；
D) mobile hobboing cutter, cutter ring 1 start in 17 surface scrolls of rock, and cutter hub 3 is rotated with cutter ring 1, and then leading on cutter hub 3
Electric ring 12 rotates with it；
E) when conducting ring 12 turns to brush 10 and insulating trip 13 contacts, ultrasonic vibrator stops working, at this time without
Ultrasonic activation output；
F) conducting ring 12 continues to rotate, and when brush 10 crosses insulating trip 13, conducting ring 12 is logical in next 45 ° of working regions
Electricity, corresponding two ultrasonic vibrators in the working region are started to work at this time, transmit ultrasonic activation power, auxiliary to cutter ring 1
Rock 17 is broken；
G) every 45 ° of the rotation of cutter ring 1, the energized state of ultrasonic vibrator is once switched, and is always ensured that hobboing cutter front end
Two ultrasonic vibrators that 17 part of rock and hobboing cutter lower end detritus part will be contacted are in running order, remaining ultrasonic wave
Vibrator is in non-working condition；
H) after the work of hobboing cutter detritus, power supply box 16 is closed, ultrasonic vibrator stops working, and hobboing cutter is moved away from rock
17 surfaces.
The quantity that insulating trip 13 is evenly arranged on conducting ring 12 is according to the ultrasonic vibrator arranged inside cutter ring 1
What quantity determined, insulating trip 13 divides conducting ring 12 for several independent working regions, and each working region is needed to adjacent
Two ultrasonic vibrators power supply, when in the cutter hub 3 of the shield hobboing cutter with ultrasonic activation effect in above-mentioned implementation
Portion arranges eight ultrasonic vibrators, and the corresponding conducting ring 12 in each working region needs to shake to two adjacent ultrasonic waves
Dynamic device power supply, so corresponding conducting ring 12 needs eight equal parts, i.e., the corresponding region of eight/a conducting ring 12, every part of conduction
Ring 12 is correspondingly placed at the position between two ultrasonic vibrator centers, thus on conducting ring 12 along its circumferencial direction every
45 ° are provided with an insulating trip 13, if arranging 12 inside the cutter hub 3 of the shield hobboing cutter with ultrasonic activation effect
Ultrasonic vibrator then need to be provided with an insulating trip 13 every 30 ° along its circumferencial direction on conducting ring 12, thus by conductive
Ring 12 is divided into 12 separate work areas.
Claims (4)
1. the shield hobboing cutter with ultrasonic activation effect, characterized in that include: conducting system, ultrasonic vibrator and cutter
System,
The conducting system includes conductance wire terminal (11), brush (10), conducting ring (12), insulating trip (13), axial conduction
One end of channel (9) and circumference conductive channel (14), the conductance wire terminal (11) is connect by electric wire with external power supply, conductance
The other end of wire terminal (11) is connect by brush (10) with conducting ring (12)；The conducting ring (12) is set on cutter hub (3),
Insulating trip (13) have been evenly arranged on conducting ring (12)；The insulating trip (13) is used to for conducting ring (12) being divided into several solely
Vertical working region, and an axial conduction channel (9) is each provided in the middle part of the corresponding conducting ring in each working region (12)；
The circumference conductive channel (14) connect with axial conduction channel (9), and circumference conductive channel (14) is arranged in adjacent two ultrasonic wave
Between vibrator, adjacent two ultrasonic vibrator is accessed by same circuit by circumference conductive channel (14)；It, will when hobboing cutter works
Brush (10) is directed toward rock (17), guarantees that two ultrasonic vibrators nearest apart from rock (17) stress surface are in and is powered on
State；
The ultrasonic vibrator includes piezo ceramic element (8), insulation board (7) and disc spring (6), the piezo ceramic element
(8) can be mobile along the radial direction of cutter ring (1), the side of piezo ceramic element (8) is connected by insulation board (7) with disc spring (6),
The other side of piezo ceramic element (8) is in contact with cutter ring (1)；One end of disc spring (6) is pressed on the outer ring of rolling bearing (4),
Piezo ceramic element (8) is tightly pressed against on cutter ring (1) by the reaction force that the other end of disc spring (6) is applied by rolling bearing (4)；
The tooling system includes cutter ring (1), cutter ring snap ring (2), cutter hub (3), rolling bearing (4) and cutter shaft (5), the knife
Circle (1) is fixed on cutter hub (3) by cutter ring snap ring (2), and cutter hub (3) is radially slotted for placing ultrasonic vibrator, knife
Body (3) is sitting on cutter shaft (5) by rolling bearing (4), and when hobboing cutter works, cutter ring (1) produces under the action of ultrasonic vibrator
The raw continuous ultrasonic activation for being directed toward rock (17).
2. the shield hobboing cutter according to claim 1 with ultrasonic activation effect, characterized in that further include end cap
(15), the end cap (15) axially generates to limit rolling bearing (4) along cutter shaft (5) for fixing rolling bearing (4) position
It is mobile.
3. the shield hobboing cutter according to claim 1 with ultrasonic activation effect, characterized in that on conducting ring (12)
An insulating trip (13) is provided with every 45 ° along its circumferencial direction, so that conducting ring (12) is divided into eight independent work
Region.
4. the shield hobboing cutter according to claim 1 with ultrasonic activation effect, characterized in that on conducting ring (12)
An insulating trip (13) is provided with every 30 ° along its circumferencial direction, so that conducting ring (12) is divided into 12 independent works
Make region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861291.3U CN208966344U (en) | 2018-11-13 | 2018-11-13 | Shield hobboing cutter with ultrasonic activation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861291.3U CN208966344U (en) | 2018-11-13 | 2018-11-13 | Shield hobboing cutter with ultrasonic activation effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966344U true CN208966344U (en) | 2019-06-11 |
Family
ID=66765234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821861291.3U Withdrawn - After Issue CN208966344U (en) | 2018-11-13 | 2018-11-13 | Shield hobboing cutter with ultrasonic activation effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281680A (en) * | 2018-11-13 | 2019-01-29 | 吉林大学 | Shield hobboing cutter and hobboing cutter rock breaking method with ultrasonic activation effect |
-
2018
- 2018-11-13 CN CN201821861291.3U patent/CN208966344U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281680A (en) * | 2018-11-13 | 2019-01-29 | 吉林大学 | Shield hobboing cutter and hobboing cutter rock breaking method with ultrasonic activation effect |
| CN109281680B (en) * | 2018-11-13 | 2023-08-15 | 吉林大学 | Shield hob with ultrasonic vibration function and hob rock breaking method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190611 Effective date of abandoning: 20230815 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190611 Effective date of abandoning: 20230815 |