CN113738391B - TBM hob mounting structure and TBM tunneling machine - Google Patents
TBM hob mounting structure and TBM tunneling machine Download PDFInfo
- Publication number
- CN113738391B CN113738391B CN202111143412.7A CN202111143412A CN113738391B CN 113738391 B CN113738391 B CN 113738391B CN 202111143412 A CN202111143412 A CN 202111143412A CN 113738391 B CN113738391 B CN 113738391B
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- wedge
- mounting surface
- hob
- movable block
- block
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- 230000005641 tunneling Effects 0.000 title description 6
- 238000009434 installation Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Gear Processing (AREA)
Abstract
The invention provides a TBM hob installation structure and a TBM heading machine, wherein the TBM hob installation structure comprises: the cutter holder is provided with a cutter withdrawal groove, a first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface are used for being matched with a positioning surface of a hob shaft; the locking device comprises a first wedge block, a movable block and a locking bolt; the first wedge block is provided with a first wedge surface and a third mounting surface matched with a positioning surface of a hob shaft, and the hob shaft can be arranged among the first mounting surface, the second mounting surface and the third mounting surface; the movable block is provided with a second wedge-shaped surface matched with the first wedge-shaped surface; the locking bolt penetrates through the tool retracting groove and is connected with the movable block. The invention solves the technical problems of complex operation and long time consumption of the TBM hob replacement process.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a TBM hob installation structure and a TBM heading machine.
Background
The TBM single-blade hob can be locked by adopting a wedge block, and the hob shaft is locked on the hob seat by the pretightening force of a bolt acting on the wedge block. However, when the hob is replaced, the locking device is required to be removed firstly, then a new hob is replaced along the hob withdrawal groove, and the whole tool replacing process is complex in operation and long in time consumption.
Disclosure of Invention
The invention aims to provide a TBM hob installation structure and a TBM tunneling machine, which solve the technical problems of complex operation and long time consumption of a TBM hob replacement process.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a mounting structure of a TBM hob, which comprises the following components:
The cutter holder is provided with a cutter withdrawal groove, a first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface are used for being matched with a positioning surface of a hob shaft;
the locking device comprises a first wedge block, a movable block and a locking bolt;
The first wedge block is provided with a first wedge surface and a third mounting surface matched with a positioning surface of a hob shaft, and the hob shaft can be arranged among the first mounting surface, the second mounting surface and the third mounting surface;
the movable block is provided with a second wedge-shaped surface matched with the first wedge-shaped surface;
the locking bolt penetrates through the tool withdrawal groove and is connected with the movable block, the locking bolt can drive the movable block to longitudinally translate along the tool withdrawal groove, and under the cooperation of the first wedge-shaped surface and the second wedge-shaped surface, the first wedge block can be driven by the movable block to move towards the first mounting surface.
In a preferred embodiment, the angle between the first mounting surface and the second mounting surface ranges from less than 90 °.
In a preferred embodiment, the third mounting surface is parallel to the longitudinal direction of the relief groove.
In a preferred embodiment, the locking device comprises a support base fixedly connected to the tool retracting groove, the locking bolt is mounted on the support base, and the first wedge block is slidably mounted on the support base.
In a preferred embodiment, a sliding groove is formed in the top of the supporting seat, and the first wedge block is provided with a sliding protruding portion which is slidably embedded in the sliding groove.
In a preferred embodiment, the support base has a wedge portion provided with a third wedge surface, the movable block is provided between the first wedge and the wedge portion, and the movable block is provided with a fourth wedge surface cooperating with the third wedge surface.
In a preferred embodiment, the bottom of the support seat is provided with a flange portion, which is fixed to the tool holder by means of a fastening screw.
In a preferred embodiment, the locking device comprises a second wedge provided with a fifth wedge surface, the movable block is arranged between the first wedge and the second wedge, and the movable block is provided with a fourth wedge surface matched with the fifth wedge surface.
In a preferred embodiment, the locking bolt is threadedly engaged with the movable block.
The invention provides a TBM tunneling machine, comprising: the hob and the mounting structure of the TBM hob; the hob shaft of the hob is arranged between the first installation surface, the second installation surface and the third installation surface, and the first installation surface, the second installation surface and the third installation surface are respectively abutted with the positioning surface of the hob shaft.
The invention has the characteristics and advantages that:
According to the mounting structure of the TBM hob, the movable block is driven to longitudinally move along the locking bolt by screwing or unscrewing the locking bolt; simultaneously, under the effect of first wedge face and second wedge face, drive first voussoir along the translation of the longitudinal direction of perpendicular to lock bolt, adjust the extension of first voussoir. Through this mounting structure of TBM hobbing cutter, conveniently install and dismantle the hobbing cutter, shortened the hobbing cutter and changed the flow, improved and changed efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a TBM hob installation structure provided by the invention;
FIG. 2 is a schematic view of a locking device in the mounting structure of the TBM hob of FIG. 1;
FIG. 3 is a side view of FIG. 2;
FIGS. 4-6 are schematic illustrations of a first wedge in the mounting structure of the TBM hob of FIG. 1;
FIGS. 7-9 are schematic illustrations of a second wedge in the mounting structure of the TBM hob of FIG. 1;
FIG. 10 is a schematic view of the support block in the mounting structure of the TBM hob of FIG. 1;
FIG. 11 is a cross-sectional view taken along the direction A-A of FIG. 10;
FIG. 12 is a side view of FIG. 10;
fig. 13 is a schematic view of the structure of the tool holder in the mounting structure of the TBM hob shown in fig. 1.
Reference numerals illustrate:
10. A hob; 11. a hob shaft; 12. a positioning surface;
20. a tool apron; 21. a first mounting surface; 22. a second mounting surface; 23. a tool retracting groove;
30. a locking device; 31. a fastening screw;
40. a movable block; 41. a second wedge surface; 42. a fourth wedge surface;
50. a first wedge; 501. a sliding boss; 51. a first wedge surface; 52. a third mounting surface;
60. a second wedge; 601. a guide projection; 61. a fifth wedge surface; 62. a second kidney-shaped aperture; 63. a chamfering structure;
70. a support base; 71. a first through hole; 72. a chute;
73. A first kidney-shaped aperture; 74. a flange portion; 741. a second through hole;
80. A locking bolt.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the hob 10 includes a hob shaft 11, and the side wall of the hob shaft 11 is provided with at least 3 positioning surfaces 12 which are not parallel to each other, and the hob 10 can transmit torque through the positioning surfaces 12.
Scheme one
The invention provides a mounting structure of a TBM hob, as shown in figures 1-3 and 13, the mounting structure of the TBM hob comprises a hob base 20 and a locking device 30, wherein the hob base 20 is provided with a hob withdrawal groove 23, a first mounting surface 21 and a second mounting surface 22, and the first mounting surface 21 and the second mounting surface 22 are used for being matched with a positioning surface 12 of a hob shaft 11; the locking device 30 includes a first wedge 50, a movable block 40, and a locking bolt 80; the first wedge 50 is provided with a first wedge surface 51 and a third mounting surface 52 for cooperation with the positioning surface 12 of the hob shaft 11, and the hob shaft 11 can be arranged between the first mounting surface 21, the second mounting surface 22 and the third mounting surface 52; the movable block 40 is provided with a second wedge surface 41 which cooperates with the first wedge surface 51; the locking bolt 80 is inserted into the tool retracting groove 23 and is connected with the movable block 40, the locking bolt 80 can drive the movable block 40 to translate along the longitudinal direction of the tool retracting groove 23, and under the cooperation of the first wedge surface 51 and the second wedge surface 41, the first wedge block 50 can be driven by the movable block 40 to move towards the first mounting surface 21.
According to the mounting structure of the TBM hob, the movable block 40 is driven to longitudinally move along the locking bolt 80 by screwing or unscrewing the locking bolt 80; at the same time, the first wedge 50 is driven to translate in a direction perpendicular to the longitudinal direction of the locking bolt 80 by the first wedge surface 51 and the second wedge surface 41, and the extension length of the first wedge 50 is adjusted.
When the hob 10 is mounted, the first wedge 50 is extended by operating the locking bolt 80, the third mounting surface 52 is abutted against the positioning surface 12 of the hob shaft 11, and the hob shaft 11 is pressed against the first mounting surface 21 and the second mounting surface 22 of the tool holder 20, thereby locking the hob 10.
When the hob 10 is disassembled, the locking bolt 80 is unscrewed, a larger gap is formed between the first wedge block 50 and the hob shaft 11 under the action of the first wedge surface 51 and the second wedge surface 41, the locking bolt 80, the movable block 40 and the first wedge block 50 are in a loose state, the first wedge block 50 can be contracted inwards, the width of the locking device 30 is reduced, the width of the locking device 30 is smaller than that of the relief groove 23, the locking device 30 can be smoothly withdrawn along the relief groove 23, the hob shaft 11 can be conveniently taken down from the space between the first wedge block 50 and the first mounting surface 21, and the locking device 30 is taken out from the relief groove 23.
Through this mounting structure of TBM hobbing cutter, conveniently install and dismantle hobbing cutter 10, shortened hobbing cutter 10 and changed the flow, improved and changed efficiency.
As shown in fig. 2 and 4-5, the first wedge surface 51 and the second wedge surface 41 are each disposed obliquely to the longitudinal direction of the lock bolt 80, so that the movable block 40 can simultaneously translate the first wedge 50 in a direction perpendicular to the longitudinal direction of the lock bolt 80 when moving in the longitudinal direction of the lock bolt 80.
In this mounting structure, the first mounting surface 21, the second mounting surface 22 and the third mounting surface 52 are used for matching with the hob shaft 11 and transmitting torque, so that the hob shaft can be conveniently matched with the existing hob 10.
In an embodiment, as shown in fig. 13, the included angle between the first mounting surface 21 and the second mounting surface 22 is recorded as β, β < 90 °, and as shown in fig. 1 and 13, the first mounting surface 21 and the second mounting surface 22 are arranged in a V shape, and even if the locking bolt 80 is loosened during the rock breaking process of the hob 10, the hob shaft 11 can be kept in a compressed state with the first mounting surface 21 and the second mounting surface 22 all the time under the action of rolling force, so that impact vibration is reduced, abnormal damage of the tool apron 20 is avoided, and the service life of the tool apron 20 is prolonged. In the rock breaking process of the hob 10, the travelling direction of the hob 10 is generally perpendicular to the hob shaft 11, when the hob 10 travels along the direction parallel to the second mounting surface 22, the resistance of rock breaking enables the hob shaft 11 to be in close contact with the first mounting surface 21, and meanwhile, the reaction force of the first mounting surface 21 to the hob shaft 11 enables the hob shaft 11 to be in close contact with the second mounting surface 22. Specifically, the counter force applied to the hob 10 for cutting the rock is applied to the hob shaft 11 at the first mounting surface 21, the downward friction force is applied to the hob shaft 11 parallel to the first mounting surface 21, and the counter force and the downward friction force can enable the hob shaft 11 to be tightly attached to the first mounting surface 21 and the second mounting surface 22 of the tool holder 20, so that the looseness of the hob shaft and the tool holder 20 is avoided.
Further, the third mounting surface 52 is parallel to the longitudinal direction of the relief groove 23, the third mounting surface 52 is attached to the positioning surface 12 of the hob shaft 11, and the pressure applied to the hob shaft 11 by the first wedge 50 through the third mounting surface 52 is perpendicular to the third mounting surface 52, i.e. perpendicular to the longitudinal direction of the relief groove 23, so that the first wedge 50 is facilitated to apply pressure to the hob shaft 11 due to the translation of the first wedge 50 in the direction perpendicular to the longitudinal direction of the lock bolt 80. Preferably, the third mounting surface 52 is coplanar with the side wall of the relief 23 when the locking device 30 compresses the hob shaft 11.
As shown in fig. 1 to 3 and 10 to 12, the locking device 30 includes a support base 70, the support base 70 is fixedly connected to the tool retracting groove 23, the locking bolt 80 is mounted on the support base 70, the first wedge 50 is slidably mounted on the support base 70, the support base 70 plays a role in supporting the first wedge 50 and the locking bolt 80,
Further, the top of the supporting seat 70 is provided with a sliding groove 72, and the first wedge 50 is provided with a sliding protrusion 501 slidably embedded in the sliding groove 72, as shown in fig. 4-6 and 10-12, the sliding protrusion 501 can slide in the sliding groove 72 to guide the translational movement of the first wedge 50. As shown in fig. 2 and 3, the height of the sliding boss 501 is greater than the depth of the chute 72.
As shown in fig. 3 and 10-12, the support base 70 is provided with a first through hole 71 for passing the locking bolt 80, and preferably, a first waist-shaped hole 73 for reducing weight is provided in the middle of the support base 70.
In one embodiment, the bottom of the support seat 70 is provided with a flange portion 74, and the flange portion 74 is fixed to the tool holder 20 by the fastening screw 31. As shown in fig. 1 and 11, the flange 74 is provided with two second through holes 741, bolt holes are provided at the bottom of the holder 20 to be engaged with the second through holes 741, and the fastening screws 31 are inserted into the second through holes 741 and screwed into the bolt holes to press the support base 70 against the holder 20. The bolt holes may be provided on both sides of the relief 23.
In an embodiment, the support base 70 has a wedge portion, the wedge portion is provided with a third wedge surface, the movable block 40 is disposed between the first wedge block 50 and the wedge portion, the movable block 40 is provided with a fourth wedge surface 42 matched with the third wedge surface, the movable block 40 is V-shaped overall, when the movable block 40 is pulled by the locking bolt 80, the movable block 40 translates along the third wedge surface, and the movable block 40 drives the first wedge block 50 to translate, so that the displacement amount of the first wedge block 50 is increased.
In another embodiment, the locking device 30 includes a second wedge 60, the second wedge 60 having a fifth wedge surface 61, the movable block 40 being disposed between the first wedge 50 and the second wedge 60, the movable block 40 having a fourth wedge surface 42 that mates with the fifth wedge surface 61. As shown in fig. 1 and 2, the movable block 40 is V-shaped as a whole, and when the movable block 40 moves downward under the tension of the locking bolt 80, the first wedge 50 and the second wedge 60 are driven to translate to two sides respectively, the first wedge 50 moves to abut against the hob shaft 11, and the second wedge 60 moves to abut against the tool holder 20. When the locking bolt 80 is unscrewed, the movable block 40, the first wedge block 50 and the second wedge block 60 are in a loose state, and the first wedge block 50 and the second wedge block 60 can be contracted inwards, so that the whole width of the locking device 30 is reduced, and the disassembly through the tool retracting groove 23 is convenient.
In this embodiment, after the movable block 40 is loosened, the first wedge block 50 and the second wedge block 60 can be retracted inwards, so that the space between the locking device 30 and the tool apron 20 and the space between the locking device 30 and the hob shaft 11 are increased, and the two sides of the locking device 30 have larger spaces, so that the installation and the disassembly are convenient. When the locking is performed, the first wedge block 50 and the second wedge block 60 are driven by the movable block 40, and the first wedge block 50 and the second wedge block 60 move to two sides respectively, so that the movable block 40 can keep moving along the longitudinal direction of the locking bolt 80, the deflection of the movable block 40 to two sides is reduced, and the shearing force and the bending moment of the locking bolt 80 are reduced.
As shown in fig. 2 and 7-9, the second wedge 60 is provided with a guide projection 601 that mates with the chute 72. The width of the guide projection 601 is equal to the width of the chute 72, and the height of the guide projection 601 is greater than the depth of the chute 72. The first and second wedges 50, 60 are provided with second kidney-shaped apertures 62, respectively, through which second kidney-shaped apertures 62 the lock bolt 80 can pass to facilitate translation of the first and second wedges 50, 60 in a direction perpendicular to the longitudinal direction of the lock bolt 80.
Further, the sliding protruding portion 501 and the guiding protruding portion 601 are provided with the chamfer structure 63, so that when the locking device 30 is disassembled and recovered through the tool retracting groove 23, the chamfer structure 63 contacts with the side wall of the tool retracting groove 23, so that the first wedge block 50 and the second wedge block 60 move inwards, the whole width of the locking device 30 is reduced, and the disassembly is convenient.
The wedge portion and the second wedge 60 are optional, and the wedge portion or the second wedge 60 may be selected according to the working conditions.
In an embodiment, the locking bolt 80 is in threaded fit with the movable block 40, a threaded hole is formed in the bottom of the movable block 40, the upper end of the locking bolt 80 is connected to the threaded hole, the lower end of the locking bolt 80 is abutted to the bottom of the tool holder 20, the locking bolt 80 is longitudinally arranged along the tool retracting groove 23, and when the locking bolt 80 is rotated, a pulling force can be applied to the movable block 40, so that the movable block 40 is driven to longitudinally translate along the tool retracting groove 23.
The TBM mounting structure shown in fig. 1-3 mounts the first wedge 50, the second wedge 60 and the movable block 40 in the slide groove 72 of the support base 70, and wears the locking bolt 80 from the bottom of the support base 70, and the locking bolt 80 is connected with the movable block 40. The locking device 30 is placed in the relief 23 and pushed into place, and the tightening screw 31 secures the locking device 30 to the holder 20. By tightening or loosening the locking bolt 80, the movable block 40 is driven to move up and down, so that the extension length of the first wedge block 50 and the second wedge block 60 in the sliding groove 72 is adjusted, the overall width of the top of the locking device 30 is changed, and the hob 10 is locked. In the loosened state of the lock bolt 80, the width of the lock device 30 is smaller than the width of the relief groove 23, and the lock device 30 can freely slide up and down in the relief groove 23.
When the hob 10 is locked, the locking bolt 80 is tightened to extend the first wedge 50 and the second wedge 60 along the sliding groove 72, the left end face of the second wedge 60 is attached to the left end face of the relief groove 23, the right end face of the first wedge 50 is attached to the positioning face 12 of the hob shaft 11, and the hob shaft 11 is locked in the first mounting face 21 and the second mounting face 22 of the tool holder 20 by the reaction force provided by the left end face of the relief groove 23. When the hob 10 is disassembled, the locking nut is unscrewed, the fastening screw 31 is disassembled, and under the action of the chamfer structures 63 at the two sides of the first wedge block 50 and the second wedge block 60, the first wedge block 50 and the second wedge block 60 can actively slide inwards, so that the width of the locking device 30 is reduced, and the locking device 30 can smoothly withdraw along the tool withdrawal groove 23.
Scheme II
The invention provides a TBM tunneling machine, which comprises: the hob 10 and the mounting structure of the TBM hob; the hob shaft 11 of the hob 10 is arranged between the first mounting surface 21, the second mounting surface 22 and the third mounting surface 52, and the first mounting surface 21, the second mounting surface 22 and the third mounting surface 52 are respectively abutted with the positioning surface 12 of the hob shaft 11.
The TBM tunneling machine comprises the mounting structure and the functions thereof, and the beneficial effects are not repeated.
The foregoing is merely a few embodiments of the present invention and those skilled in the art may make various modifications or alterations to the embodiments of the present invention in light of the disclosure herein without departing from the spirit and scope of the invention.
Claims (7)
1. A mounting structure for a TBM hob, comprising:
The cutter holder is provided with a cutter withdrawal groove, a first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface are used for being matched with a positioning surface of a hob shaft;
the locking device comprises a first wedge block, a movable block and a locking bolt;
The first wedge block is provided with a first wedge surface and a third mounting surface matched with a positioning surface of a hob shaft, and the hob shaft can be arranged among the first mounting surface, the second mounting surface and the third mounting surface;
the movable block is provided with a second wedge-shaped surface matched with the first wedge-shaped surface;
the locking bolt penetrates through the tool retracting groove and is connected with the movable block, the locking bolt can drive the movable block to translate along the longitudinal direction of the tool retracting groove, and under the cooperation of the first wedge-shaped surface and the second wedge-shaped surface, the first wedge block can be driven by the movable block to move towards the first mounting surface;
The range of an included angle between the first mounting surface and the second mounting surface is smaller than 90 degrees, and the first mounting surface and the second mounting surface are arranged in a V shape;
The third mounting surface is parallel to the longitudinal direction of the tool retracting groove;
The locking device comprises a second wedge block, a fifth wedge surface is arranged on the second wedge block, the movable block is arranged between the first wedge block and the second wedge block, and a fourth wedge surface matched with the fifth wedge surface is arranged on the movable block.
2. The TBM hob mounting structure of claim 1, wherein the locking device includes a support seat fixedly secured in the relief slot, the locking bolt is mounted to the support seat, and the first wedge is slidably mounted to the support seat.
3. The TBM hob mounting structure of claim 2, wherein a chute is provided on the top of the support base, and the first wedge is provided with a sliding protrusion slidably embedded in the chute.
4. The TBM hob mounting structure according to claim 2, characterized in that the bottom of the support seat is provided with a flange portion, which is fixed to the hob seat by fastening screws.
5. The TBM hob mounting structure of claim 1, wherein the lock bolt is threadedly engaged with the movable block.
6. A mounting structure for a TBM hob, comprising:
The cutter holder is provided with a cutter withdrawal groove, a first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface are used for being matched with a positioning surface of a hob shaft;
the locking device comprises a first wedge block, a movable block and a locking bolt;
The first wedge block is provided with a first wedge surface and a third mounting surface matched with a positioning surface of a hob shaft, and the hob shaft can be arranged among the first mounting surface, the second mounting surface and the third mounting surface;
the movable block is provided with a second wedge-shaped surface matched with the first wedge-shaped surface;
the locking bolt penetrates through the tool retracting groove and is connected with the movable block, the locking bolt can drive the movable block to translate along the longitudinal direction of the tool retracting groove, and under the cooperation of the first wedge-shaped surface and the second wedge-shaped surface, the first wedge block can be driven by the movable block to move towards the first mounting surface;
The range of an included angle between the first mounting surface and the second mounting surface is smaller than 90 degrees, and the first mounting surface and the second mounting surface are arranged in a V shape;
The third mounting surface is parallel to the longitudinal direction of the tool retracting groove;
the locking device comprises a supporting seat, the supporting seat is fixedly connected in the tool retracting groove, the locking bolt is arranged on the supporting seat, and the first wedge block is slidably arranged on the supporting seat;
The supporting seat is provided with a wedge-shaped part, the wedge-shaped part is provided with a third wedge-shaped surface, the movable block is arranged between the first wedge block and the wedge-shaped part, and the movable block is provided with a fourth wedge-shaped surface matched with the third wedge-shaped surface.
7. A TBM heading machine, comprising: a mounting structure for a hob and a TBM hob according to any one of the claims 1 to 6; the hob shaft of the hob is arranged between the first installation surface, the second installation surface and the third installation surface, and the first installation surface, the second installation surface and the third installation surface are respectively abutted with the positioning surface of the hob shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111143412.7A CN113738391B (en) | 2021-09-28 | 2021-09-28 | TBM hob mounting structure and TBM tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111143412.7A CN113738391B (en) | 2021-09-28 | 2021-09-28 | TBM hob mounting structure and TBM tunneling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113738391A CN113738391A (en) | 2021-12-03 |
| CN113738391B true CN113738391B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111143412.7A Active CN113738391B (en) | 2021-09-28 | 2021-09-28 | TBM hob mounting structure and TBM tunneling machine |
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| CN (1) | CN113738391B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285707A (en) * | 2016-09-18 | 2017-01-04 | 中铁工程装备集团有限公司 | A kind of extension type limit hobboing cutter girff |
| US20190345823A1 (en) * | 2016-11-10 | 2019-11-14 | Sandvik Intellectual Property Ab | Roller cutter unit for undercutting machine |
| CN110985022A (en) * | 2019-12-20 | 2020-04-10 | 中国铁建重工集团股份有限公司 | Tool apron device |
| CN111502688A (en) * | 2020-05-13 | 2020-08-07 | 中南大学 | Variable-rigidity flexible hob cutter holder |
-
2021
- 2021-09-28 CN CN202111143412.7A patent/CN113738391B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285707A (en) * | 2016-09-18 | 2017-01-04 | 中铁工程装备集团有限公司 | A kind of extension type limit hobboing cutter girff |
| US20190345823A1 (en) * | 2016-11-10 | 2019-11-14 | Sandvik Intellectual Property Ab | Roller cutter unit for undercutting machine |
| CN110985022A (en) * | 2019-12-20 | 2020-04-10 | 中国铁建重工集团股份有限公司 | Tool apron device |
| CN111502688A (en) * | 2020-05-13 | 2020-08-07 | 中南大学 | Variable-rigidity flexible hob cutter holder |
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| Publication number | Publication date |
|---|---|
| CN113738391A (en) | 2021-12-03 |
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