CN209761436U - heavy-duty inserted cutter ring - Google Patents
heavy-duty inserted cutter ring Download PDFInfo
- Publication number
- CN209761436U CN209761436U CN201920400406.7U CN201920400406U CN209761436U CN 209761436 U CN209761436 U CN 209761436U CN 201920400406 U CN201920400406 U CN 201920400406U CN 209761436 U CN209761436 U CN 209761436U
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- China
- Prior art keywords
- heavy
- cutter ring
- tooth
- tooth hole
- duty
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- Expired - Fee Related
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Abstract
The utility model discloses a heavy insert cutter ring, which comprises a gear wheel steel base body, wherein a circle of cutting edge is processed on the outer circumference of the gear wheel steel base body, and tooth holes are uniformly arranged on the cutting edge along the circumferential direction at intervals; hard alloy matched with the size of the tooth hole is embedded in the tooth hole; and a wear-resistant layer is also arranged between the end surfaces of the two sides of the steel matrix of the roller cone and the cutting edge. This heavy-duty inserted tooth cutter ring, can bear great impact to current wear-resisting steel cutter ring, but unsuitable sand cobble stratum and the strong quartz sand stratum of abrasiveness tunnel the technical problem, through processing the tooth hole on cutter ring outer wall week edge, the embedding has rather than assorted carbide in the tooth hole, make it when tunneling in the face of sand cobble stratum and the strong quartz sand stratum of abrasiveness, can bear great impact, make this impact force be dispersed on the blade along carbide's edge simultaneously, thereby reduce the wearing and tearing to the blade, improve the life of whole cutter ring.
Description
Technical Field
The utility model relates to a tunnel tunnelling cutter technical field specifically is a heavy inserted cutter ring.
Background
At present, a disk cutter of a shield machine is assembled by parts such as a cutter ring, a cutter body, a cutter shaft and the like, the cutter body is sleeved on the cutter shaft of a bearing through a bearing, the cutter ring is arranged on the cutter body, the end face of the cutter ring is limited by a welded check ring, when the disk cutter with the structural form breaks rocks in a sandy gravel stratum with uneven hardness and a quartz sand stratum with strong grinding property, the cutter ring is broken or displaced due to impact, and the cutter body is worn or deformed due to impact due to low hardness, so that the cutter and the cutter have to be frequently replaced; meanwhile, the phenomenon of stress concentration is easily generated in the interference assembly process of the cutter ring and the cutter body, so that the service life and the construction efficiency of the hob are greatly influenced.
The cutter ring adopted in the current market is basically an integral wear-resistant steel cutter ring material, mainly made of alloy tool steel, also made of alloy structural steel, has the hardness of HRC52-59, and is characterized by being capable of bearing larger impact. But is not suitable for the tunneling of sandy gravel stratum and highly-abrasive quartz sand stratum.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heavy inserted cutter ring is tunneled to the quartzy sand stratum that sandy cobble stratum and grinding nature are strong to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a heavy insert cutter ring comprises a gear wheel steel base body, wherein a circle of cutting edges are machined on the outer circumference of the gear wheel steel base body, and tooth holes are uniformly formed in the cutting edges at intervals along the circumferential direction; hard alloy matched with the size of the tooth hole is embedded in the tooth hole; and a wear-resistant layer is also arranged between the end surfaces of the two sides of the steel matrix of the roller cone and the cutting edge.
Preferably, the diameter size of perforation sets up 22mm, and the roughness is 3.2 um.
Preferably, the depth of the hard alloy embedded in the tooth hole is 45 mm.
Preferably, the hard alloy is in interference fit with the tooth hole.
Preferably, the height of the hard alloy convex cutting edge is 3-5 mm.
Preferably, the wear-resistant layer is formed by overlaying tungsten carbide welding wires, and the thickness of the wear-resistant layer is 0.5-1 mm.
Compared with the prior art, the beneficial effects of the utility model are as follows:
This heavy-duty inserted tooth cutter ring through processing the perforation on cutter ring outer wall week edge, the embedded carbide rather than the assorted that has of perforation, makes it when driving in the face of sandy gravel stratum and the quartz sand stratum that grinds the sex strong, can bear great impact, makes this impact force on being dispersed the blade along carbide's edge simultaneously to reduce the wearing and tearing to the blade, improve the life of whole cutter ring.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a side sectional view of the present invention.
In the figure: 1 roller cone steel basal body, 2 cutting edges, 3 tooth holes, 4 hard alloy and 5 wear-resistant layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the heavy insert cutter ring comprises a gear steel base body 1, wherein a circle of cutting edge 2 is processed on the outer circumference of the gear steel base body 1, tooth holes 3 are uniformly formed in the cutting edge 2 at intervals along the circumferential direction, the diameter of each tooth hole 3 is 22mm, and the roughness is 3.2 um; hard alloy 4 matched with the size of the tooth hole 3 is embedded in the tooth hole 3, the depth of the hard alloy 4 embedded in the tooth hole 3 is 45mm, the hard alloy 4 is in interference fit with the tooth hole 3, and the height of the hard alloy 4 protruding out of the cutting edge 2 is 3-5 mm; and a wear-resistant layer 5 is also arranged between the end surfaces of the two sides of the steel matrix 1 of the cone and the cutting edge 2, the wear-resistant layer 5 is formed by overlaying tungsten carbide welding wires, and the thickness is 0.5-1 mm.
During actual production and processing, firstly, performing die forging forming and rough machining on a prefabricated blank to form a semi-finished product, clamping the semi-finished product as required to align, processing various contours of the excircle, blade shape and end face of the steel matrix 1 of the cone, ensuring corresponding dimensional tolerance and roughness, and then performing surfacing welding on the wear-resistant layer 5 with the thickness of 0.5-1mm by using tungsten carbide welding wires at corresponding positions of the end faces on two sides of the steel matrix 1 of the cone; then, the tooth holes 3 on the outer circumference of the steel base body 1 of the cone are machined, the tooth holes 3 are machined by a rotary workbench, the inner holes of the steel base body 1 of the cone are used as a reference during machining, an included angle between two adjacent holes is calculated according to the number of the tooth holes on the outer circumference of the cutting edge 2, the reaming procedures are respectively carried out according to the length of alloy, the roughness of the tooth holes 3 is guaranteed to be 3.2um, the whole cutter ring is quenched and tempered after the tooth holes 3 are machined, finally, the hard alloy 4 is embedded by adopting a static pressure method, the pressure required for embedding the hard alloy 4 is calculated according to the interference of the hard alloy 4 and the tooth holes 3, the working pressure of a hydraulic system is set, the situation that the hard alloy 4 is over-pressed or can not be pressed to the bottom is prevented from occurring, and the hard alloy 4 is sequentially pressed into the tooth holes 3 of the cutter ring after the.
In summary, the following steps: this heavy-duty inserted tooth cutter ring, can bear great impact to current wear-resisting steel cutter ring, but unsuitable sand cobble stratum and the strong quartz sand stratum of abrasiveness tunnel the technical problem, through processing the tooth hole 3 on cutter ring outer wall week edge, the gomphosis has rather than assorted carbide 4 in the tooth hole 3, make it when tunneling in the face of sand cobble stratum and the strong quartz sand stratum of abrasiveness, can bear great impact, make this impact force be dispersed on blade 2 along carbide 4's edge simultaneously, thereby reduce the wearing and tearing to blade 2, improve the life of whole cutter ring.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a heavy insert cutter ring, includes gear wheel steel base body (1), its characterized in that: a circle of cutting edges (2) are machined on the outer circumference of the gear wheel steel matrix (1), and tooth holes (3) are uniformly formed in the cutting edges (2) at intervals along the circumferential direction; hard alloy (4) matched with the size of the tooth hole (3) is embedded in the tooth hole (3); and a wear-resistant layer (5) is also arranged between the end surfaces on the two sides of the steel matrix (1) of the roller cone and the cutting edge (2).
2. The heavy-duty insert ring according to claim 1, wherein: the diameter size of perforation (3) sets up to 22mm, and the roughness is 3.2 um.
3. The heavy-duty insert ring according to claim 1, wherein: the depth of the hard alloy (4) embedded in the tooth hole (3) is 45 mm.
4. A heavy duty tipped cutter ring according to claim 3, wherein: the hard alloy (4) and the tooth hole (3) are in interference fit.
5. The heavy-duty insert ring according to claim 1, wherein: the height of the hard alloy (4) protruding the cutting edge (2) is 3-5 mm.
6. The heavy-duty insert ring according to claim 1, wherein: the wear-resistant layer (5) is formed by overlaying tungsten carbide welding wires, and the thickness of the wear-resistant layer is 0.5-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400406.7U CN209761436U (en) | 2019-03-27 | 2019-03-27 | heavy-duty inserted cutter ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400406.7U CN209761436U (en) | 2019-03-27 | 2019-03-27 | heavy-duty inserted cutter ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761436U true CN209761436U (en) | 2019-12-10 |
Family
ID=68756623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920400406.7U Expired - Fee Related CN209761436U (en) | 2019-03-27 | 2019-03-27 | heavy-duty inserted cutter ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209761436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922638A (en) * | 2020-07-23 | 2020-11-13 | 马鞍山灵山机械设备科技有限公司 | Cutter ring embedded with wedge-shaped alloy teeth and production process thereof |
| CN112696204A (en) * | 2021-02-03 | 2021-04-23 | 洛阳九久科技股份有限公司 | Rhombic cap-shaped tooth cutter ring and manufacturing process thereof |
-
2019
- 2019-03-27 CN CN201920400406.7U patent/CN209761436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922638A (en) * | 2020-07-23 | 2020-11-13 | 马鞍山灵山机械设备科技有限公司 | Cutter ring embedded with wedge-shaped alloy teeth and production process thereof |
| CN112696204A (en) * | 2021-02-03 | 2021-04-23 | 洛阳九久科技股份有限公司 | Rhombic cap-shaped tooth cutter ring and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210327 |