CN220890193U - Retractable center tool bit of shield constructs machine - Google Patents
Retractable center tool bit of shield constructs machine Download PDFInfo
- Publication number
- CN220890193U CN220890193U CN202322606543.5U CN202322606543U CN220890193U CN 220890193 U CN220890193 U CN 220890193U CN 202322606543 U CN202322606543 U CN 202322606543U CN 220890193 U CN220890193 U CN 220890193U
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- Prior art keywords
- cutter head
- disc
- shaft
- blade
- sealing ring
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- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000005641 tunneling Effects 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims 2
- 239000004575 stone Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 10
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a telescopic center cutter head of a shield machine, and belongs to the technical field of shield machines. The utility model provides a shield constructs scalable center tool bit of machine, includes outer blade disc and interior blade disc, still includes the center arbor, and it sets up between outer blade disc and interior blade disc, the surface of outer blade disc is provided with a plurality of blade holders, is provided with outer cutting edge groove between the blade holder, the surface of blade holder is provided with a plurality of cutter loading grooves, the inboard of outer blade disc is provided with outer sealing ring. In order to solve the problem that the shield tunneling machine adopts a single-group cutter disc structure, the cutter disc can only rotate towards one direction in the tunneling process, broken stones generated by tunneling cannot guarantee the consistency of the sizes, the follow-up discharging and conveying are blocked, the rotor shaft rod rotates clockwise under the influence of an electromagnetic winding in the taper sleeve, the outer cutter disc on the outer side is driven to rotate, and the inner cutter disc on the inner side rotates anticlockwise between the shield tunneling machine main body through another group of motor structures.
Description
Technical Field
The utility model relates to the technical field of shield machines, in particular to a retractable center cutter head of a shield machine.
Background
The basic working principle of the shield tunneling machine is that a cylindrical steel component is used for excavating soil while advancing along the axis of a tunnel. The shell of the cylinder assembly, namely a shield, has a temporary supporting effect on the excavated tunnel section which is not lined yet, bears the pressure of surrounding soil layers, and sometimes bears the groundwater pressure and keeps the groundwater out;
Patent publication number CN212614726U discloses a telescopic shield constructs quick-witted blade disc, including the blade holder, through drill bit cooperation helical blade and third blade, can excavate the soil layer of tunneling earlier not hard up, then cooperate first blade and second blade can progressively tunnel.
In the above patent, the shield machine mostly adopts a single-group cutter head structure, the cutter head can only rotate towards one direction in the tunneling process, and broken stones generated by tunneling cannot guarantee the consistency of the size, so that the subsequent discharge and conveying are blocked; therefore, the existing requirements are not met, and a retractable center cutter head of the shield tunneling machine is provided.
Disclosure of utility model
The utility model aims to provide a telescopic center cutter head of a shield machine, a rotor shaft lever rotates clockwise under the influence of an electromagnetic winding in a taper sleeve, so that an outer cutter head at the outer side is driven to rotate, and an inner cutter head at the inner side rotates anticlockwise between the other group of motor structures and a shield machine main body, so that the problems in the prior art can be solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a shield constructs scalable center tool bit of machine, includes outer blade disc and interior blade disc, still includes the center arbor, and it sets up between outer blade disc and interior blade disc, the surface of outer blade disc is provided with a plurality of blade holders, is provided with outer cutting edge groove between the blade holder, the surface of blade holder is provided with a plurality of cutter loading grooves, the inboard of outer blade disc is provided with outer sealing ring, and the inboard of outer sealing ring is provided with interior sealing ring, outer sealing ring and interior sealing ring all set up as integral type structure with the blade holder.
Preferably, the outer surface of the inner cutter head is provided with a rotary sleeve shaft, the rotary sleeve shaft is in fit connection with the outer sealing ring, the inner side of the rotary sleeve shaft is provided with a partition sleeve shaft, and the partition sleeve shaft is in fit connection with the inner sealing ring.
Preferably, an inner cutting edge groove is arranged between the rotary sleeve shaft and the partition sleeve shaft, one side of the inner cutter head is provided with a switching end shaft, and the switching end shaft and the inner cutter head are arranged into an integrated structure.
Preferably, the center cutter shaft comprises a taper sleeve and a taper head, the taper sleeve is connected with the adapter end shaft through a clamping groove, and the taper head is connected with the outer cutter head through a bolt.
Preferably, one end of the conical head is provided with an insulating sleeve, the inner side of the insulating sleeve is provided with a rotor shaft lever, and the rotor shaft lever and the conical head are arranged into an integrated structure.
Preferably, the inside of taper sleeve is provided with flexible commentaries on classics groove, and flexible inslot side is provided with electromagnetic winding, rotor axostylus axostyle passes through electromagnetic winding and flexible commentaries on classics groove rotation to be connected.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, the rotor shaft lever rotates clockwise under the influence of the electromagnetic winding in the taper sleeve, so that the outer cutter disc at the outer side is driven to rotate, the inner cutter disc at the inner side rotates anticlockwise between the other group of motor structures and the shield tunneling machine main body, the outer cutter disc breaks rock strata by utilizing the outer cutting edge groove and the cutter shaft structure on the surface in the rotary tunneling process, broken stones enter between the outer cutter disc and the inner cutter disc through the outer cutting edge groove, and crushed stones are crushed again through the inner cutter disc at the moment, so that the influence on auger conveying caused by overlarge size of the crushed stones can be avoided;
2. According to the utility model, the taper sleeve is arranged in the switching end shaft in the inner cutter disc, the rotor shaft lever can be pushed out of the telescopic rotating groove in the taper sleeve through the hydraulic pushing structure during bidirectional rotation, and the space between the outer cutter disc and the inner cutter disc is increased on the premise that the normal rotation of the rotor shaft lever is not influenced, so that the capacity of broken stone can be improved, and meanwhile, the situation that the rotation of the cutter disc is blocked when broken stone with larger size enters the space between the cutter discs is avoided.
Drawings
FIG. 1 is an overall front view of the present utility model;
FIG. 2 is a schematic view of the whole cross-sectional structure of the present utility model;
Fig. 3 is a schematic view of the structure of a center cutter shaft of the present utility model;
fig. 4 is a schematic view of the overall exploded structure of the present utility model.
In the figure: 1. an outer cutterhead; 2. an inner cutterhead; 3. a central cutter shaft; 101. an outer cutting edge groove; 102. a tool apron; 103. a cutter loading groove; 104. an outer seal ring; 105. an inner seal ring; 201. a rotating sleeve shaft; 202. a partition sleeve shaft; 203. a transfer end shaft; 204. an inner cutting edge groove; 301. a taper sleeve; 302. a conical head; 303. a rotor shaft; 304. an electromagnetic winding; 3011. a telescopic rotating groove; 3021. an insulating cuff.
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.
In order to solve the problem that the shield tunneling machine adopts a single-group cutter head structure, the cutter head can only rotate towards one direction in the tunneling process, broken stones generated by tunneling cannot guarantee the consistency of the sizes and can cause blockage in subsequent discharging and conveying, please refer to fig. 1-4, the embodiment provides the following technical scheme:
The utility model provides a shield constructs scalable center tool bit of machine, including outer blade disc 1 and interior blade disc 2, still include center arbor 3, it sets up between outer blade disc 1 and interior blade disc 2, the surface of outer blade disc 1 is provided with a plurality of blade holders 102, be provided with outer cutting edge groove 101 between the blade holders 102, the surface of blade holder 102 is provided with a plurality of tool holding grooves 103, the inboard of outer blade disc 1 is provided with outer sealing ring 104, the inboard of outer sealing ring 104 is provided with interior sealing ring 105, outer sealing ring 104 and interior sealing ring 105 all set up as an integral type structure with blade holder 102, center arbor 3 includes taper sleeve 301 and cone head 302, taper sleeve 301 and switching end shaft 203 are connected through the draw-in groove, cone head 302 and outer blade disc 1 pass through bolted connection, one end of cone head 302 is provided with insulating sleeve 3021, the inboard of insulating sleeve 3021 is provided with rotor axostylus axostyle 303, rotor axostyle 303 and cone head 302 are set up as an integral type structure, the inside of taper sleeve 301 is provided with flexible change-over 3011, the inboard of flexible change-over 3011 is provided with electromagnetic winding, rotor 303 is connected with flexible axostylus axostyle 3011 through electromagnetic winding 304 through flexible change-over 304 rotation;
Rotor axostylus axostyle 303 carries out clockwise rotation at the inside electromagnetic winding 304 of taper sleeve 301's influence to drive outside outer blade disc 1 to rotate, and inside inner blade disc 2 then carries out anticlockwise rotation between another group motor structure and the shield constructs the owner body, outer blade disc 1 is in the in-process of rotatory tunnelling with the outer cutting edge groove 101 of surface and arbor structure with the rock formation broken, stone after the fracture enters into between outer blade disc 1 and the inner blade disc 2 through outer cutting edge groove 101, rethread inner blade disc 2 carries out secondary crushing to the rubble this moment, thereby can avoid the rubble size too big and influence auger transportation.
In order to solve the problem that the crushed stone is stuck between the cutterheads, please refer to fig. 2-4, the present embodiment provides the following technical scheme:
The outer surface of the inner cutter head 2 is provided with a rotary sleeve shaft 201, the rotary sleeve shaft 201 is in fit connection with the outer sealing ring 104, the inner side of the rotary sleeve shaft 201 is provided with a partition sleeve shaft 202, the partition sleeve shaft 202 is in fit connection with the inner sealing ring 105, an inner cutting edge groove 204 is formed between the rotary sleeve shaft 201 and the partition sleeve shaft 202, one side of the inner cutter head 2 is provided with a switching end shaft 203, and the switching end shaft 203 and the inner cutter head 2 are arranged into an integrated structure;
The cone sleeve 301 is installed in the switching end shaft 203 inside the inner cutter 2, and can push the rotor shaft 303 out of the telescopic rotating groove 3011 inside the cone sleeve 301 through the hydraulic pushing structure during bidirectional rotation, so that the space between the outer cutter 1 and the inner cutter 2 is increased on the premise that the normal rotation of the rotor shaft 303 is not affected, the capacity of broken stone can be improved, and meanwhile, the situation that the rotation of the cutter is blocked when broken stone with larger size enters the cutter is avoided.
According to the working principle, the rotor shaft 303 rotates clockwise under the influence of the electromagnetic winding 304 in the cone sleeve 301, so that the outer cutter disc 1 on the outer side is driven to rotate, the inner cutter disc 2 on the inner side rotates anticlockwise between the other group of motor structures and the shield tunneling machine main body, the outer cutter disc 1 breaks rock strata by utilizing the outer cutting edge groove 101 and the cutter shaft structure on the surface in the rotary tunneling process, broken stones enter between the outer cutter disc 1 and the inner cutter disc 2 through the outer cutting edge groove 101, crushed stones are secondarily crushed at the moment, the rotor shaft 303 can be pushed out of the telescopic rotary groove 3011 in the cone sleeve 301 through the hydraulic pushing structure during bidirectional rotation, the space between the outer cutter disc 1 and the inner cutter disc 2 is increased on the premise that the normal rotation of the rotor shaft 303 is not influenced, the capacity of crushed stones can be improved, and meanwhile, the condition that the rotation of the cutter disc is blocked when the crushed stones with larger size enter between the cutter discs is avoided.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The telescopic center cutter head of the shield tunneling machine comprises an outer cutter head (1) and an inner cutter head (2), and is characterized in that; still include center arbor (3), it sets up between outer blade disc (1) and interior blade disc (2), the surface of outer blade disc (1) is provided with a plurality of blade holders (102), is provided with outer cutting edge groove (101) between blade holder (102), the surface of blade holder (102) is provided with a plurality of tool holding groove (103), the inboard of outer blade disc (1) is provided with outer sealing ring (104), and the inboard of outer sealing ring (104) is provided with interior sealing ring (105), outer sealing ring (104) and interior sealing ring (105) all set up as integral type structure with blade holder (102).
2. The retractable center cutter head of a shield tunneling machine according to claim 1, wherein: the outer surface of the inner cutter head (2) is provided with a rotary sleeve shaft (201), the rotary sleeve shaft (201) is connected with the outer sealing ring (104) in a fitting mode, the inner side of the rotary sleeve shaft (201) is provided with a separation sleeve shaft (202), and the separation sleeve shaft (202) is connected with the inner sealing ring (105) in a fitting mode.
3. The retractable center cutter head of a shield tunneling machine according to claim 2, wherein: an inner cutting edge groove (204) is formed between the rotary sleeve shaft (201) and the partition sleeve shaft (202), one side of the inner cutter head (2) is provided with a switching end shaft (203), and the switching end shaft (203) and the inner cutter head (2) are arranged into an integrated structure.
4. A retractable center cutter head of a shield tunneling machine according to claim 3, wherein: the center cutter shaft (3) comprises a taper sleeve (301) and a taper head (302), the taper sleeve (301) is connected with the switching end shaft (203) through a clamping groove, and the taper head (302) is connected with the outer cutter head (1) through a bolt.
5. The retractable center cutter head of a shield tunneling machine according to claim 4, wherein: one end of the cone head (302) is provided with an insulating sleeve hoop (3021), the inner side of the insulating sleeve hoop (3021) is provided with a rotor shaft lever (303), and the rotor shaft lever (303) and the cone head (302) are arranged into an integrated structure.
6. The retractable center cutter head of a shield tunneling machine according to claim 5, wherein: the inside of taper sleeve (301) is provided with flexible change groove (3011), and the inboard of flexible change groove (3011) is provided with electromagnetic winding (304), rotor axostylus axostyle (303) are connected with flexible change groove (3011) rotation through electromagnetic winding (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322606543.5U CN220890193U (en) | 2023-09-26 | 2023-09-26 | Retractable center tool bit of shield constructs machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322606543.5U CN220890193U (en) | 2023-09-26 | 2023-09-26 | Retractable center tool bit of shield constructs machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220890193U true CN220890193U (en) | 2024-05-03 |
Family
ID=90868875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322606543.5U Active CN220890193U (en) | 2023-09-26 | 2023-09-26 | Retractable center tool bit of shield constructs machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220890193U (en) |
-
2023
- 2023-09-26 CN CN202322606543.5U patent/CN220890193U/en active Active
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