CN220815642U - Magnetic hob of shield machine - Google Patents
Magnetic hob of shield machine Download PDFInfo
- Publication number
- CN220815642U CN220815642U CN202322561092.8U CN202322561092U CN220815642U CN 220815642 U CN220815642 U CN 220815642U CN 202322561092 U CN202322561092 U CN 202322561092U CN 220815642 U CN220815642 U CN 220815642U
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- CN
- China
- Prior art keywords
- cutter
- ring
- magnetic
- cutter body
- cover
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000005641 tunneling Effects 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model provides a magnetic hob of a shield machine, which comprises a magnetic hole, a cutter ring, a retainer ring, a sealing ring, bearings, a cutter shaft, a cutter cover and a cutter body, wherein the magnetic hole is formed in the left side surface position of the cutter ring, the cutter ring is sleeved at the middle position outside the cutter body, the retainer ring is clamped at the left side of the cutter ring, the sealing ring is connected to the left side and the right side of the inside of the cutter body, a group of bearings are connected to the middle of the cutter shaft, the bearings are arranged inside the cutter body, and the cutter cover is connected to the left side and the right side of the cutter body.
Description
Technical Field
The utility model discloses a magnetic hob of a shield machine, and relates to the technical field of shield machines.
Background
The shield tunneling machine is widely used for tunnel engineering of subways, railways, highways, municipal administration, hydropower and the like. Shield machines have been known for nearly 180 years, starting in the united kingdom and developing in japan and germany. In recent 30 years, the stability of an excavation surface, the control of the surface elevation and the subsidence within a specified range are ensured through the effective sealing of key technologies in earth pressure balance type and slurry type shield machines, such as the shield machine, the service life of a cutter and the replacement of the cutter under a sealing condition are ensured, and the problems of exploring and researching the aspects of severe geology such as the treatment technology of high water pressure conditions and the like are solved, so that the shield machine is rapidly developed.
The magnetic hob is installed on the shield machine to drill the ground, the working pressure is reduced, the shield machine is designed and used, the construction progress is accelerated, but the magnetic hob is common in the market, when the shield machine is driven by large-function propelling force, friction between the hob and rock is caused, the cutter ring is damaged due to extrusion, micro cracks are formed in the cutter ring, the cutter ring is broken and damaged, and the magnetic hob of the shield machine is urgently needed at present to solve the problem.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model aims to provide the magnetic hob of the shield machine so as to solve the problems in the background art, the magnetic hob is convenient to use, the damage to the cutter ring can be reduced under the adsorption force of a magnet when the cutter ring collides with rock, the cutter ring can be used for a long time in a complex environment and cannot be easily broken, and the practicability of the design is very good.
In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a shield constructs quick-witted magnetic force hobbing cutter, includes magnetic force hole, cutter ring, retaining ring, sealing washer, bearing, arbor, tool cover and cutter body, the left side surface position at the cutter ring is all seted up to the magnetic force hole, the cutter ring cup joints at the outside intermediate position of cutter body, the left side joint of cutter ring has the retaining ring, the inside left and right sides of cutter body is connected with the sealing washer, arbor intermediate junction has a set of bearing, the bearing is placed in the inside of cutter body, the left side and the right side of cutter body are connected with the tool cover.
Further, a group of clamping grooves are formed in the cutter shaft, and the inner walls of the clamping grooves are in butt joint with the outer walls of the bearings.
Further, the right end of the cutter shaft penetrates through the right end of the cutter body to be connected with the bearing.
Further, the right end of the cutter body is also provided with a cutter cover, the middle of the cutter cover is connected with the cutter shaft, threads are arranged on the surface of the cutter cover and are butted with internal threads formed on the right side of the cutter body, and the cutter cover is fixed through bolts.
Further, a limiting groove is formed in the middle of the cutter body and is in butt joint with the cutter ring, a clamping groove is formed in the left side of the cutter ring, and the clamping groove is fixedly clamped with the check ring.
Further, three magnetic holes are distributed on the left side of the cutter ring, the diameter of each magnetic hole is 11mm, a magnet is placed in each magnetic hole, and the diameter of each magnet is 10mm.
Further, the internal thread that the left side of knife cover was offered and the internal thread that the knife body left side was equipped with dock, is fixed through bolted connection.
Further, the knife ring is made of an arc edge, and the knife ring is made of HH301 material.
The utility model has the beneficial effects that: the magnetic hole is formed in the left side face of the cutter ring, the magnet connected to the inside of the magnetic hole collides with a rock stratum when the shield machine drills to the ground, so that the cutter ring can be broken in productivity, at the moment, the damage can be relieved under the adsorption force of the magnet, brittle fracture under no magnetic force is converted into ductile fracture under magnetic force, the design is constructed under a complex environment according to the shield machine, a magnetic hob is developed, and the hob is prevented from being broken when the hob collides with the rock, so that the shield machine is suitable for development, popularization and use.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a structure of a magnetic hob of a shield tunneling machine;
FIG. 2 is a schematic cross-sectional view of a cutter body in a magnetic hob of a shield tunneling machine according to the present utility model;
In the figure: 1-magnetic hole, 2-knife ring, 3-retainer ring, 4-sealing ring, 5-bearing, 6-knife shaft, 7-knife cover and 8-knife body.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Referring to fig. 1 and 2, the present utility model provides a technical solution: the shield constructs quick-witted magnetic force hobbing cutter, including magnetic force hole 1, cutter ring 2, retaining ring 3, sealing washer 4, bearing 5, arbor 6, tool cover 7 and cutter body 8, magnetic force hole 1 all sets up the left side surface position at cutter ring 2, cutter ring 2 cup joints in the outside intermediate position of cutter body 8, the left side joint of cutter ring 2 has retaining ring 3, the inside left and right sides of cutter body 8 is connected with sealing washer 4, be connected with a set of bearing 5 in the middle of the arbor 6, bearing 5 is placed in the inside of cutter body 8, the left side and the right side of cutter body 8 are connected with tool cover 7.
A group of clamping grooves are formed in the cutter shaft 6, the inner walls of the clamping grooves are in butt joint with the outer walls of the bearings 5, and the design plays a role in connecting and fixing the bearings 5, so that the bearings 5 drive the cutter body 8 to rotate. The right end of the cutter shaft 6 passes through the right end of the cutter body 8 and is connected with the bearing 5, the design plays a role of connecting the bearing 5, the bearing 5 rotates on the cutter shaft 6, the right end of the cutter body 8 is also provided with a cutter cover 7, the middle of the cutter cover 7 is connected with the cutter shaft 6, threads are arranged on the surface of the cutter cover 7 and are in butt joint with internal threads formed on the right side of the cutter body 8, the cutter cover 7 is fixed through bolts, the design plays a role of sealing the right bearing 5, the bearing 5 is prevented from being separated from the cutter body 8, a limiting groove is formed in the middle position of the cutter body 8 and is in butt joint with the cutter ring 2, the design plays a role of clamping the cutter ring 2, a clamping groove is formed in the left side of the cutter ring 2 and is clamped and fixed with the retainer ring 3, and the cutter ring 2 is prevented from being separated from the cutter body 8.
Three magnetic holes 1 are distributed on the left side of the cutter ring 2, the diameter of each magnetic hole 1 is 11mm, the magnet is placed in each magnetic hole 1, the diameter of each magnet is 10mm, and the damage to the cutter ring 2 can be reduced under the adsorption force of the magnet through the design, so that the service life of the magnetic hob is prolonged. The internal thread that the left side of tool cover 7 was offered and the internal thread that 8 left sides of cutter body were equipped with dock, through bolted connection fixed, this design prevents that cutter body 8 left side bearing 5 from droing cutter body 8, cutter ring 2 adopts the circular arc sword, this design makes cutter ring 2 have very strong penetration cutting ability in hard rock stratum drilling, circular arc sword cutter ring 2 can absorb external impact under impact property, prevent cutter ring appearance fracture phenomenon, cutter ring 2 adopts HH301 material, this design makes cutter ring 2 be applicable to extremely hard stratum.
As a second embodiment of the present utility model: the cutter shaft 6 of the magnetic hob is connected with a fixing piece of the shield machine, when the shield machine is started, the cutter shaft 6 can generate rotary motion, the bearing 5 is connected with the cutter shaft 6, so that the bearing 5 can rotate, the bearing 5 rotates to drive the cutter body 8 to move, the cutter ring 2 connected with the middle position of the cutter body 8 can also rotate, at the moment, the shield machine is operated to align the magnetic hob to the drilled position, under the action of rotation of the cutter ring 2, the magnetic hob can extend from the ground, the cutter ring 2 can prevent the cutter ring 2 from rotating under the action of the retainer ring 3 to separate from the cutter body 8, the cutter ring 2 with a complex underground structure is easy to drill to rocks, friction between the hob and the rocks can be caused, and the cutter ring 2 is damaged due to extrusion, if the cutter ring 2 has micro cracks, the cutter ring 2 can be broken and damaged, so that the magnetic hole 1 arranged at the left side of the cutter ring 2 is internally connected with a magnet, the damage can be relieved under the adsorption force of the magnet, that is converted into ductile fracture under the magnetic force, the brittle fracture under the magnetic force, the design can enable the magnetic hob to work under complex conditions, the service life of the magnetic hob is prolonged, and maintenance cost is reduced.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The utility model provides a shield constructs quick-witted magnetic force hobbing cutter, includes magnetic force hole (1), cutter ring (2), retaining ring (3), sealing washer (4), bearing (5), arbor (6), knife cover (7) and cutter body (8), its characterized in that: the utility model discloses a cutter for the electric motor, including cutter body (8), cutter shaft (6), magnetic force hole (1) are all offered in the left side surface position of cutter ring (2), cutter ring (2) cup joint in the outside intermediate position of cutter body (8), the left side joint of cutter ring (2) has retaining ring (3), the inside left and right sides of cutter body (8) is connected with sealing washer (4), be connected with a set of bearing (5) in the middle of arbor (6), the inside at cutter body (8) is placed in bearing (5), the left side and the right side of cutter body (8) are connected with tool cap (7).
2. The shield tunneling machine magnetic hob according to claim 1, characterized in that: a group of clamping grooves are formed in the cutter shaft (6), and the inner walls of the clamping grooves are in butt joint with the outer walls of the bearings (5).
3. The shield tunneling machine magnetic hob according to claim 1, characterized in that: the right end of the cutter shaft (6) passes through the right end of the cutter body (8) and is connected with the bearing (5).
4. The shield tunneling machine magnetic hob according to claim 1, characterized in that: the right end of the cutter body (8) is also provided with a cutter cover (7), the middle of the cutter cover (7) is connected with the cutter shaft (6), the surface of the cutter cover (7) is provided with threads which are butted with internal threads formed on the right side of the cutter body (8), and the cutter cover is fixed through bolts.
5. The shield tunneling machine magnetic hob according to claim 1, characterized in that: the middle position of the cutter body (8) is provided with a limit groove which is in butt joint with the cutter ring (2), the left side of the cutter ring (2) is provided with a clamping groove, and the clamping groove is fixedly clamped with the retainer ring (3).
6. The shield tunneling machine magnetic hob according to claim 1, characterized in that: three magnetic holes (1) are distributed on the left side of the cutter ring (2), the diameter of each magnetic hole (1) is 11mm, a magnet is placed in each magnetic hole (1), and the diameter of each magnet is 10mm.
7. The shield tunneling machine magnetic hob according to claim 1, characterized in that: the left side of the cutter cover (7) is provided with an internal thread which is butted with the left side of the cutter body (8) and is fixedly connected through a bolt.
8. The shield tunneling machine magnetic hob according to claim 1, characterized in that: the cutter ring (2) adopts an arc blade, and the cutter ring (2) adopts HH301 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322561092.8U CN220815642U (en) | 2023-09-20 | 2023-09-20 | Magnetic hob of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322561092.8U CN220815642U (en) | 2023-09-20 | 2023-09-20 | Magnetic hob of shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220815642U true CN220815642U (en) | 2024-04-19 |
Family
ID=90698740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322561092.8U Active CN220815642U (en) | 2023-09-20 | 2023-09-20 | Magnetic hob of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220815642U (en) |
-
2023
- 2023-09-20 CN CN202322561092.8U patent/CN220815642U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |