CN219865017U - Cluster impact type TBM cutter head - Google Patents
Cluster impact type TBM cutter head Download PDFInfo
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- CN219865017U CN219865017U CN202320863658.XU CN202320863658U CN219865017U CN 219865017 U CN219865017 U CN 219865017U CN 202320863658 U CN202320863658 U CN 202320863658U CN 219865017 U CN219865017 U CN 219865017U
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- Prior art keywords
- impact
- cutterhead
- hammer
- elastic piece
- cluster
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- 239000011435 rock Substances 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 230000005641 tunneling Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a cluster impact type TBM cutter head, which relates to the technical field of rock breaking, and comprises: the device comprises an impact hammer device, a sliding aid spraying device and a cutter disc supporting shell, wherein the cutter disc supporting shell is provided with at least two impact hammer devices and at least two sliding aid spraying devices, and the sliding aid spraying devices are arranged between two adjacent impact hammer devices; the two ends of the impact hammer device are respectively provided with a first elastic piece and a second elastic piece, and the first elastic piece and the second elastic piece are used for adaptively stretching according to the rock reaction force born by the impact hammer device until the rock reaction force counteracts with the reaction force. The cluster impact type TBM cutterhead can effectively prolong the service life and improve the use effect of the cutting part of the TBM cutterhead.
Description
Technical Field
The utility model relates to the technical field of rock breaking, in particular to a cluster impact type TBM cutter head.
Background
In the related art, a rotary cutter is mostly used for a domestic TBM cutter, and the cutter is driven to rotate so as to cut rock for tunneling operation, so that tunneling operation efficiency is low, the cutter internal structures are rigidly connected, and a cutting part is easy to damage during tunneling of the TBM cutter.
In summary, how to improve the service life and the use effect of the cutting component of the TBM cutterhead is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present utility model is to provide a cluster impact type TBM cutterhead, which can effectively improve the service life and the use effect of the cutting members of the TBM cutterhead.
In order to achieve the above object, the present utility model provides the following technical solutions:
a cluster impact TBM cutterhead comprising: the device comprises an impact hammer device, a sliding aid spraying device and a cutter disc supporting shell, wherein the cutter disc supporting shell is provided with at least two impact hammer devices and at least two sliding aid spraying devices, and the sliding aid spraying devices are arranged between two adjacent impact hammer devices;
the two ends of the impact hammer device are respectively provided with a first elastic piece and a second elastic piece, and the first elastic piece and the second elastic piece are used for adaptively stretching according to the rock reaction force born by the impact hammer device until the rock reaction force and the reaction force are mutually counteracted.
The impact hammer device includes:
the impact hammer drill bit is arranged on the outer side of the cutterhead supporting shell;
the baffle seat plate is arranged in the cutterhead support shell;
the hammer body is arranged in the cutterhead supporting shell, the first end of the hammer body penetrates through the cutterhead supporting shell to be connected with the impact hammer drill bit, and the second end of the hammer body is connected with the baffle plate in a penetrating mode;
a front support sliding sleeve;
the rear support sliding sleeve and the front support sliding sleeve are respectively arranged at two ends of the hammer body, and the front support sliding sleeve and the rear support sliding sleeve can axially slide in a single inner cavity of the cutterhead support shell;
one end of the first elastic piece is contacted with the cutterhead support shell, and the other end of the first elastic piece is contacted with the front support sliding sleeve;
the second elastic piece is sleeved on the second end, one end of the second elastic piece is contacted with the rear support sliding sleeve, and the other end of the second elastic piece is contacted with the baffle plate.
Preferably, the impact hammer device further comprises a guide sleeve for limiting the radial shaking, the guide sleeve is embedded in the front baffle of the cutter disc supporting shell, and the drill rod is inserted into the guide sleeve.
Preferably, the second end is a protruding shaft, and the protruding shaft is detachably connected with the baffle plate.
Preferably, the first elastic member is a spring, the second elastic member is a disc spring, or the first elastic member and the second elastic member are both springs.
Preferably, the hammer body is a hydraulically driven hammer.
Preferably, a plurality of said impact hammer devices are cycloidally distributed on said cutterhead support housing.
Preferably, the edge of the impact hammer bit of the impact hammer device positioned at the outermost ring of the cutter head supporting shell exceeds the edge of the cutter head supporting shell.
When the cluster impact type TBM cutterhead provided by the utility model is used, when the TBM heading machine works, the cutterhead supporting shell can be driven to advance, the impact hammer device can be driven to continuously impact a rock stratum, and the glidant injection device can inject the glidant so as to improve the crushing impact effect of the impact hammer device. At this time, the first elastic member and the second elastic member may be adaptively lengthened and shortened according to the reaction force transmitted back from the impact hammer device by the rock until the reaction force is offset. Through setting up first elastic component and second elastic component at jump bit device tip, not only can absorb the reaction force that rock transmitted back like this, can also self-adaptation offset different reaction force magnitudes to effectively protect cutting member.
In summary, the cluster impact type TBM cutterhead provided by the utility model can effectively prolong the service life and improve the use effect of the cutting part of the TBM cutterhead.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a cluster impact type TBM cutterhead provided by the utility model;
FIG. 2 is a cross-sectional view of A-A of FIG. 1;
fig. 3 is a partial enlarged view of fig. 1 at B.
In fig. 1-3:
the impact hammer comprises an impact hammer device 1, an impact hammer drill bit 11, a guide sleeve 12, a first elastic piece 13, a front support sliding sleeve 14, a hammer body 15, a rear support sliding sleeve 16, a second elastic piece 17, a baffle plate 18, a slip aid spraying device 2 and a cutter disc support shell 3.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims at providing a cluster impact type TBM cutter head, which can effectively prolong the service life and improve the use effect of cutting parts of the TBM cutter head.
Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a cluster impact TBM cutterhead provided by the present utility model; FIG. 2 is a cross-sectional view of A-A of FIG. 1; fig. 3 is a partial enlarged view of fig. 1 at B.
The embodiment provides a cluster impact type TBM cutter head, which comprises: the device comprises an impact hammer device 1, a sliding agent spraying device 2 and a cutter disc supporting shell 3, wherein the cutter disc supporting shell 3 is provided with at least two impact hammer devices 1 and at least two sliding agent spraying devices 2, and the sliding agent spraying devices 2 are arranged between two adjacent impact hammer devices 1; the two ends of the impact hammer device 1 are respectively provided with a first elastic piece 13 and a second elastic piece 17, and the first elastic piece 13 and the second elastic piece 17 are used for self-adaptively stretching according to the rock reaction force born by the impact hammer device 1 until the first elastic piece and the second elastic piece counteract the reaction force.
When the cluster impact type TBM cutterhead provided by the utility model is used, when the TBM heading machine works, the cutterhead supporting shell 3 can be driven to advance and the impact hammer device 1 can be driven to continuously impact a rock stratum, and the glidant injection device 2 can inject the glidant so as to improve the crushing impact effect of the impact hammer device 1. At this time, the first elastic member 13 and the second elastic member 17 may adaptively lengthen and shorten until canceling out the reaction force, depending on the reaction force transmitted back from the rock by the impact hammer device 1. By arranging the first elastic piece 13 and the second elastic piece 17 at the end part of the impact hammer device 1, the impact hammer device not only can absorb the reaction force transmitted back by the rock, but also can self-adaptively offset different reaction force, thereby effectively protecting the cutting part.
In summary, the cluster impact type TBM cutterhead provided by the utility model can effectively prolong the service life and improve the use effect of the cutting part of the TBM cutterhead.
On the basis of the above-described embodiment, it is preferable that the impact hammer device 1 includes:
a hammer bit 11 provided outside the cutterhead support housing 3;
a baffle plate 18 provided in the cutterhead support housing 3;
the hammer body 15 is arranged in the cutterhead support housing 3, a first end of the hammer body 15 penetrates through the cutterhead support housing 3 to be connected with the impact hammer bit 11, and a second end of the hammer body 15 penetrates through the baffle plate 18 to be connected;
a front support runner 14;
the rear support sliding sleeve 16 and the front support sliding sleeve 14 are respectively arranged at two ends of the hammer body 15, and the front support sliding sleeve 14 and the rear support sliding sleeve 16 can axially slide in a single inner cavity of the cutterhead support housing 3;
a first elastic member 13 having one end in contact with the cutterhead support housing 3 and the other end in contact with the front support sliding sleeve 14;
and the second elastic piece 17 is sleeved on the second end, one end of the second elastic piece 17 is contacted with the rear support sliding sleeve 16, and the other end is contacted with the baffle seat plate 18.
It should be noted that, the first end of the hammer body 15 is a drill rod, the drill rod may pass through the front baffle of the cutterhead support housing 3 to be connected with the impact hammer bit 11, the second end of the hammer body 15 is a protruding shaft, the protruding shaft may pass through the baffle plate 18, and the second elastic member 17 is sleeved on the outer periphery of the protruding shaft.
The shape, structure, type, position, etc. of the impact hammer bit 11, the first elastic member 13, the front support sliding sleeve 14, the hammer body 15, the rear support sliding sleeve 16, the second elastic member 17, and the baffle plate 18 can be determined according to actual conditions and actual demands in the actual application process.
When the TBM tunneling machine works, the hammer body 15 can be driven to drive the front support sliding sleeve 14 and the rear support sliding sleeve 16 to reciprocate in the inner cavity of the cutter head support shell 3, so that the impact hammer bit 11 continuously impacts the rock stratum, at this time, the first elastic piece 13 and the second elastic piece 17 can be adaptively lengthened and shortened according to the reaction force transmitted back by the rock of the hammer body 15 until the reaction force is mutually counteracted. Through setting up first elastic component 13 between blade disc support casing and preceding support sliding sleeve 14, set up second elastic component 17 between back support sliding sleeve 16 and fender bedplate 18, not only can absorb the reaction force that the rock transmitted back like this, can also self-adaptation offset different reaction force magnitudes to effectively protect the cutting member.
The impact hammer bit 11 is axially reciprocated to impact and crush the rock, and has a stronger action strength and a higher efficiency than the rotary cutting, thereby improving the rock crushing efficiency of the cutting member.
Preferably, the impact hammer device 1 further comprises a guide sleeve 12 for limiting radial shaking of the drill rod, the guide sleeve 12 is embedded in the front baffle of the cutter head supporting shell 3, and the drill rod is inserted into the guide sleeve 12. The guide sleeve 12 can effectively limit the radial shaking phenomenon of the drill rod of the hammer body 15 during the axial reciprocating motion.
Preferably, the second end is a male shaft, which is removably connected to the baffle plate 18.
The guard plate 18 is detachably provided in the cutterhead support housing 3, and the guard plate 18 is provided with a through hole for passing through a boss shaft, and the boss shaft can reciprocate in the through hole of the guard plate 18. And if the protruding shaft and the baffle plate 18 are damaged in the use process, the damaged parts can be replaced through the disassembling operation, and new parts and other undamaged parts are matched for use, so that the service life of the impact hammer device 1 is prolonged, and the device maintenance cost is reduced.
On the basis of the above embodiment, it is preferable that the first elastic member 13 is a spring, the second elastic member 17 is a disc spring, or both the first elastic member 13 and the second elastic member 17 are springs.
It should be noted that one end of the first elastic member 13 may be in contact with the front baffle of the cutterhead support housing 3, and the other end of the first elastic member 13 may be in contact with the front support sliding sleeve 14. And, the second elastic member 17 may be sleeved in a protruding shaft at the rear end of the hammer body 15, the protruding shaft passing through a detachably mounted baffle plate 18, one end of the second elastic member 17 contacting the rear support sliding sleeve 16, and the other end of the second elastic member 17 contacting the baffle plate 18. The reaction force generated after the impact hammer bit 11 impacts the rock stratum can be absorbed by adopting a flexible structure (spring and disc spring), and different reaction force magnitudes can be self-adaptively counteracted.
In addition, the second elastic member 17 needs to bear a larger impact force, so the second elastic member 17 may be configured as a disc spring, and the bearing capacity and the buffering and shock absorbing capacity of the disc spring are stronger. Of course, the second elastic member 17 may also be provided as a spring having a larger load-bearing capacity.
Preferably, the hammer body 15 is a hydraulically driven hammer. The hydraulic driving hammer body 15 can be utilized to perform axial reciprocating motion, so that the TBM cutterhead can perform tunneling work by impacting broken rock, and a flexible structure is arranged in the hydraulic driving impact hammer device 1, so that different counter forces can be offset in a self-adaptive mode.
On the basis of the above-described embodiments, it is preferable that a plurality of impact hammer devices 1 are cycloidally distributed on the cutterhead support housing 3 to enhance the rock breaking effect of the impact hammer devices 1.
Preferably, the edge of the impact hammer bit 11 of the impact hammer device 1 located at the outermost ring of the cutterhead support housing 3 exceeds the edge of the cutterhead support housing 3, so as to avoid the abrasion of the cutterhead support housing 3 by rocks, and further effectively protect the cutterhead support housing 3.
It should be noted that, in the present document, the first end and the second end, the first elastic member, and the second elastic member are mentioned, where the first and the second are merely for distinguishing the difference of the positions, and there is no sequential distinction.
It should be noted that the direction or positional relationship indicated by "inside and outside" or the like of the present utility model is based on the direction or positional relationship shown in the drawings, and is merely for simplicity of description and ease of understanding, and does not indicate or imply that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. Any combination of all the embodiments provided in the present utility model is within the protection scope of the present utility model, and will not be described herein.
The cluster impact type TBM cutterhead provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (8)
1. A cluster impact TBM cutterhead, comprising: the automatic impact hammer comprises an impact hammer device (1), a sliding aid spraying device (2) and a cutter disc supporting shell (3), wherein at least two impact hammer devices (1) and at least two sliding aid spraying devices (2) are arranged on the cutter disc supporting shell (3), and the sliding aid spraying devices (2) are arranged between two adjacent impact hammer devices (1);
the two ends of the impact hammer device (1) are respectively provided with a first elastic piece (13) and a second elastic piece (17), and the first elastic piece (13) and the second elastic piece (17) are used for adaptively stretching according to the rock reaction force born by the impact hammer device (1) until the rock reaction force and the reaction force are mutually counteracted.
2. The cluster-impact TBM cutterhead according to claim 1, wherein the impact hammer device (1) comprises:
the impact hammer drill bit (11) is arranged outside the cutter disc supporting shell (3);
a baffle plate (18) arranged in the cutterhead support housing (3);
the hammer body (15) is arranged in the cutterhead support shell (3), a first end of the hammer body (15) penetrates through the cutterhead support shell (3) to be connected with the impact hammer drill bit (11), and a second end of the hammer body (15) is connected with the baffle plate (18) in a penetrating mode;
a front support runner (14);
the rear support sliding sleeve (16) and the front support sliding sleeve (14) are respectively arranged at the front end and the rear end of the hammer body (15), and the front support sliding sleeve (14) and the rear support sliding sleeve (16) can axially slide in a single inner cavity of the cutterhead support shell (3);
one end of the first elastic piece (13) is contacted with the cutterhead support shell (3), and the other end of the first elastic piece is contacted with the front support sliding sleeve (14);
the second elastic piece (17) is sleeved on the second end, one end of the second elastic piece (17) is in contact with the rear support sliding sleeve (16), and the other end of the second elastic piece is in contact with the baffle plate (18).
3. The cluster-impact TBM cutterhead of claim 2, wherein the impact hammer device (1) further comprises a guide sleeve (12) for limiting radial wobble of a drill rod, the guide sleeve (12) is embedded in a front baffle of the cutterhead support housing (3), and the drill rod is inserted into the guide sleeve (12).
4. The cluster-impact TBM cutterhead of claim 2 wherein the second end is a boss, the boss being removably connected to the baffle plate (18).
5. The cluster-impact TBM cutterhead according to any of claims 1-4, wherein the first elastic member (13) is a spring, the second elastic member (17) is a disc spring, or both the first elastic member (13) and the second elastic member (17) are springs.
6. The cluster-impact TBM cutterhead of any of claims 2 to 4, wherein the hammer body (15) is a hydraulically driven hammer.
7. A cluster-impact TBM cutterhead according to any of claims 1-4, characterized in that a plurality of the impact hammer means (1) are cycloidally distributed on the cutterhead support housing (3).
8. The cluster-impact TBM cutterhead of claim 7, wherein the edge of the hammer bit (11) of the hammer device (1) located at the outermost ring of the cutterhead support housing (3) exceeds the edge of the cutterhead support housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320863658.XU CN219865017U (en) | 2023-04-17 | 2023-04-17 | Cluster impact type TBM cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320863658.XU CN219865017U (en) | 2023-04-17 | 2023-04-17 | Cluster impact type TBM cutter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865017U true CN219865017U (en) | 2023-10-20 |
Family
ID=88322542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320863658.XU Active CN219865017U (en) | 2023-04-17 | 2023-04-17 | Cluster impact type TBM cutter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865017U (en) |
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2023
- 2023-04-17 CN CN202320863658.XU patent/CN219865017U/en active Active
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