CN114352304B - Spherical cutter head - Google Patents
Spherical cutter head Download PDFInfo
- Publication number
- CN114352304B CN114352304B CN202210031264.8A CN202210031264A CN114352304B CN 114352304 B CN114352304 B CN 114352304B CN 202210031264 A CN202210031264 A CN 202210031264A CN 114352304 B CN114352304 B CN 114352304B
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- China
- Prior art keywords
- cutter
- hob
- force transmission
- cutterhead
- cutter head
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- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 53
- 238000009434 installation Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a spherical cutterhead, which comprises: cutter disc, landing leg power transmission subassembly, hobbing cutter and cutter, wherein the cutter disc includes biography power backplate, hobbing cutter installation department and cutter installation department, cutter installation department and hobbing cutter installation department are connected with biography power backplate, the hobbing cutter is installed on hobbing cutter installation department, the axis of rotation of hobbing cutter sets up for cutter disc's axis of rotation slope, the cutter is fixed on cutter installation department, biography power backplate is connected with landing leg power transmission subassembly, landing leg power transmission subassembly can drive cutter and hobbing cutter and carry out rotary motion when driving biography power backplate rotation, the hobbing cutter still can spin simultaneously, when spherical cutter disc is tunneled, the hobbing cutter can produce a forward force and an outward thrust to drift extrudes the tunnelling section with the barrier, can effectively reduce cutter disc tunnelling resistance, and then guarantee normal tunnelling operation.
Description
Technical Field
The invention relates to the field of construction machinery, in particular to a spherical cutterhead.
Background
The existing small-diameter pipe jacking machine cutterhead is usually a plane cutterhead, and because of small excavation diameter, compact structure and limited space, the small-diameter cutterhead is difficult to be configured with parts such as a flushing pipeline and a rotary joint for reducing mud cake of the cutterhead, so that excavation operation of the small-diameter cutterhead in composite geology is difficult to carry out.
In the work process, if a drifting stratum is encountered, when a plane cutterhead is adopted for tunneling, the drifting can only be pushed forward, so that the stress of the cutterhead is continuously increased, the thrust provided by equipment can not meet the required thrust and can not work continuously finally, in addition, the cutterhead can not crush the drifting, only can repeatedly collide with the drifting, the cutter is easy to damage, and normal construction can not be realized.
Disclosure of Invention
The invention aims to provide a spherical cutter head, which can effectively solve the problems that a planar cutter head is difficult to be applied to construction of a drifting stratum and the like.
In order to solve the technical problems, the invention provides the following technical scheme:
a spherical cutterhead comprising: the cutter head comprises a cutter head body, a supporting leg force transmission assembly, a hob and a cutter, wherein the supporting leg force transmission assembly is used for driving the cutter head body to rotate, the cutter head body comprises a force transmission back plate, a hob installation part and a cutter installation part, the hob is installed on the hob installation part, the rotation axis of the hob is inclined relative to the rotation axis of the cutter head body, the cutter is fixed on the cutter installation part, the cutter installation part and the hob installation part are connected with the force transmission back plate, the force transmission back plate is connected with the supporting leg force transmission assembly, and the hob is used for generating forward force and outward thrust when the spherical cutter head is driven to extrude a driving section from an obstacle.
Preferably, the hob installation part comprises a bearing part connected with the force transmission backboard, and the rotating shaft of the hob is installed on the bearing part through a bearing.
Preferably, the cutter mounting part comprises a spoke plate, the inner side of the spoke plate is fixed on the force transmission backboard, the outer side of the spoke plate is an arc-shaped surface, and the cutter is fixed on the side part of the spoke plate.
Preferably, an arc-shaped panel is arranged on one side, close to the center of the cutter head, of the hinged support, and a feeding port is formed in a space between the arc-shaped panel and the center of the cutter head.
Preferably, the outer side surface of the force transmission backboard is further provided with a scraper mounting part for fixing an edge scraper.
Preferably, the scraper mounting part is the spoke plate, the cutter is fixed on the spoke plate at a position close to the center of the cutter head body, and the edge scraper is fixed on the spoke plate at a position close to the edge of the cutter head body.
Preferably, the front surface of the force transmission backboard is provided with a plurality of hob installation parts, cutter installation parts and scraper installation parts.
Preferably, a wear-resisting plate is arranged on one side, away from the cutter head body, of the supporting leg force transmission assembly, the supporting leg force transmission assembly is arranged on the main transmission shaft, a crushing cone is arranged on one side, opposite to the wear-resisting plate, of the shield body, a gap between the crushing cone and the wear-resisting plate is a crushing cavity, and the feeding port is communicated with the crushing cavity.
Compared with the prior art, the technical scheme has the following advantages:
The invention provides a spherical cutterhead, which comprises: cutter disc, landing leg power transmission subassembly, hobbing cutter and cutter, wherein the cutter disc includes biography power backplate, hobbing cutter installation department and cutter installation department, cutter installation department and hobbing cutter installation department are connected with biography power backplate, the hobbing cutter is installed on hobbing cutter installation department, the axis of rotation of hobbing cutter sets up for cutter disc's axis of rotation slope, the cutter is fixed on cutter installation department, biography power backplate is connected with landing leg power transmission subassembly, landing leg power transmission subassembly can drive cutter and hobbing cutter and carry out rotary motion when driving biography power backplate rotation, the hobbing cutter can spin simultaneously, when spherical cutter drivage, the hobbing cutter can produce a forward force and an outward thrust to drift extrudes the tunneling section with the barrier, can effectively reduce cutter disc's tunneling resistance, and then guarantee normal tunneling operation.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the front structure of a spherical cutterhead;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
Fig. 3 is a diagram of a curved cutter layout path.
The reference numerals are as follows:
The cutter comprises a cutter head body 1, a spoke plate 11, an arc-shaped face plate 12, a force transmission back plate 13, a circular ring 14, an abrasion-proof plate 15 and a feed inlet 16;
The landing leg force transmission assembly 2, the locating pin 21 and the wear-resistant plate 22;
hob 3, arc surface tool arrangement path diagram 31, hob mounting part 32;
a cutter 4;
An edge scraper 5;
shield 6, crushing cone 61.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than those herein described, and those skilled in the art may readily devise numerous other arrangements that do not depart from the spirit of the invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.
Referring to fig. 1 to 3, fig. 1 is a schematic front structural view of a spherical cutterhead; FIG. 2 is a cross-sectional view A-A of FIG. 1; fig. 3 is a diagram of a curved cutter layout path.
An embodiment of the present invention provides a spherical cutterhead, including: the cutter head comprises a cutter head body 1, a supporting leg force transmission assembly 2, a hob 3 and a cutter 4, wherein the supporting leg force transmission assembly 2 is arranged on a shield body 6 and is used for driving the cutter head body 1 to rotate; the cutter head body 1 comprises a force transmission backboard 13, a cutter mounting part 32 and a cutter mounting part, wherein the cutter mounting part and the cutter mounting part 32 are connected with the force transmission backboard 13, the cutter 3 is mounted on the cutter mounting part 32, the rotation axis of the cutter 3 is inclined relative to the rotation axis of the cutter head body 1, the cutter 4 is fixed on the cutter mounting part, the force transmission backboard 13 is connected with the supporting leg force transmission assembly 2, the supporting leg force transmission assembly 2 can be fixed with the force transmission backboard 13 after the position is determined by the positioning pin 21, the supporting leg force transmission assembly 2 can drive the cutter 4 and the cutter 3 to rotate when driving the force transmission backboard 13 to rotate, and meanwhile, the cutter 3 can rotate, and when the spherical cutter head is driven, the cutter head 3 can generate forward force and outward thrust to extrude the driving section of the obstacle boulder, so that the driving resistance of the cutter head body 1 can be effectively reduced, and normal driving operation can be ensured.
In one embodiment of the invention, the hob mounting part 32 comprises a bearing part connected with the force transmission backboard 13, and the rotating shaft of the hob 3 is mounted on the bearing part through a bearing; the cutter 44 installation department includes spoke board 11, the inboard of spoke board 11 is fixed on passing on backboard 13, the outside of spoke board 11 is the arcwall face, cutter 44 is fixed in the lateral part of spoke board 11, pass on backboard 13's lateral surface still is equipped with the scraper installation department that is used for fixing edge scraper 5, the scraper installation department is preferably spoke board 11, cutter 44 and edge scraper 5 are fixed on same spoke board 11 promptly, cutter 44 is fixed in the position that is close to cutter disc 1 center on spoke board 11, edge scraper 5 is fixed in the position that is close to cutter disc 1 edge on spoke board 11. The positions of the hob 3, the cutters 44 and the edge scrapers 5 are respectively arranged through an arc-surface cutter arrangement track chart 31, so that the cutters are arranged as many as possible, the full-section, especially rock geological excavation is facilitated, for example, the rotation track of each hob 3 is a concentric circle, the track misalignment is ensured as far as possible, as shown in fig. 1, S1-S8 are respectively the distribution positions of eight hobs, and # 1- #9 are respectively the distribution positions of nine cutters, as shown in fig. 3, each hob is provided with two circles of cutting edges, and A1-A16 are side projection schematic diagrams of the distribution positions of the cutting edges of eight hobs on the spherical cutterhead. That is, the front surface of the force transmission backboard 13 is preferably provided with a plurality of hob mounting parts 32, cutters 44 mounting parts and scraper mounting parts, the number of the mounting parts and the cutter spacing can be adjusted according to the diameter of the cutter head body 1, and cutters with different functions can be replaced according to different geological conditions.
Further, one side of the hinged support, which is close to the center of the cutter head body 1, is provided with an arc-shaped panel 12, a space between the arc-shaped panel 12 and the center of the cutter head body 1 forms a feed inlet 16, the outer surface of the arc-shaped panel 12 is provided with an anti-abrasion plate 15, the arc-shaped panel 12 can guide dregs, the middle of the cutter head is convenient to discharge dregs, and therefore the dregs are prevented from being accumulated in the middle of the cutter head. In order to ensure that the feed inlet 16 is large enough, the connection part of the supporting leg force transmission assembly 2 and the force transmission back plate 13 can be arranged at the position, close to the edge, on the cutter head body 1, and the outer periphery side of the force transmission back plate 13 is provided with a circular ring 14, so that the circular ring 14 can play a certain role in protecting the force transmission back plate 13. From the above, the cutterhead body 1 adopts a splicing mode, and is a spherical structure formed by a spoke plate 11 with an arc surface, an arc-shaped panel 12, a force transmission backboard 13, a circular ring 14, an anti-wear plate 15 and the like, and compared with a traditional planar cutterhead, the cutterhead can effectively squeeze open the drifting stone, avoid continuous friction between the cutterhead and the drifting stone, and further improve the service life and the construction efficiency of the cutterhead.
In one embodiment of the invention, a wear-resistant plate 22 is arranged on one side, away from the cutter head body 1, of the supporting leg force transmission assembly 2, the supporting leg force transmission assembly 2 is connected with a main transmission shaft, the main transmission shaft can drive the supporting leg force transmission assembly 2 to rotate relative to the shield body, a crushing cone 61 is arranged on one side, opposite to the wear-resistant plate 22, of the shield body 6, a gap between the crushing cone 61 and the wear-resistant plate 22 is a crushing cavity, a feeding hole is communicated with the crushing cavity, and rock slag can be crushed secondarily through the crushing cone 61 along with the rotation of the supporting leg force transmission assembly 2, so that the problem of blocking materials of the cutter head is avoided.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A spherical cutterhead, comprising: the cutter head comprises a cutter head body, a supporting leg force transmission assembly, a hob and a cutter, wherein the supporting leg force transmission assembly is used for driving the cutter head body to rotate, the cutter head body comprises a force transmission back plate, a hob installation part and a cutter installation part, the hob is installed on the hob installation part, the rotation axis of the hob is obliquely arranged relative to the rotation axis of the cutter head body, the cutter is fixed on the cutter installation part, the cutter installation part and the hob installation part are connected with the force transmission back plate, the force transmission back plate is connected with the supporting leg force transmission assembly, a circular ring is arranged on the periphery side of the force transmission back plate, and the hob is used for generating forward force and outward thrust when the spherical cutter head is tunneled so as to extrude an obstacle into a tunnelling section;
the hob installation part comprises a bearing part connected with the force transmission backboard, and a rotating shaft of the hob is installed on the bearing part through a bearing;
The cutter mounting part comprises a spoke plate, the inner side of the spoke plate is fixed on the force transmission backboard, the outer side of the spoke plate is an arc-shaped surface, and the cutter is fixed on the side part of the spoke plate;
An arc-shaped panel is arranged on one side, close to the center of the cutter head body, of the bearing part, and a material inlet is formed in the space between the arc-shaped panel and the center of the cutter head body.
2. The spherical cutterhead of claim 1, wherein the outer side of the force-transmitting back plate is further provided with a scraper mounting portion for securing an edge scraper.
3. The spherical cutterhead of claim 2 wherein the scraper mounting is a spoke plate, the cutters are fixed to the spoke plate near the center of the cutterhead body, and the edge scrapers are fixed to the spoke plate near the edges of the cutterhead body.
4. The spherical cutterhead of claim 2 wherein the face of the force-transmitting back plate is provided with a plurality of the hob mounting portions, the cutter mounting portions and the scraper mounting portions.
5. The spherical cutterhead according to any one of claims 1 to 4 wherein a wear plate is provided on a side of the leg force transfer assembly facing away from the cutterhead body, the leg force transfer assembly is mounted on a main drive shaft, a crushing cone is provided on a side of the shield opposite the wear plate, a gap between the crushing cone and the wear plate is a crushing cavity, and the feed port is in communication with the crushing cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210031264.8A CN114352304B (en) | 2022-01-12 | 2022-01-12 | Spherical cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210031264.8A CN114352304B (en) | 2022-01-12 | 2022-01-12 | Spherical cutter head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114352304A CN114352304A (en) | 2022-04-15 |
| CN114352304B true CN114352304B (en) | 2024-04-26 |
Family
ID=81109413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210031264.8A Active CN114352304B (en) | 2022-01-12 | 2022-01-12 | Spherical cutter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114352304B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949421A (en) * | 2023-01-31 | 2023-04-11 | 盾科工程装备有限公司 | Cutter head structure for micro shield machine |
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2022
- 2022-01-12 CN CN202210031264.8A patent/CN114352304B/en active Active
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| CN113738392A (en) * | 2021-08-31 | 2021-12-03 | 中铁工程装备集团有限公司 | Movable slag sliding assembly applied to dual-mode cutter head and dual-mode cutter head |
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| Publication number | Publication date |
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| CN114352304A (en) | 2022-04-15 |
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