CN109441467B - Novel hobbing cutter for shield machine - Google Patents
Novel hobbing cutter for shield machine Download PDFInfo
- Publication number
- CN109441467B CN109441467B CN201910025178.4A CN201910025178A CN109441467B CN 109441467 B CN109441467 B CN 109441467B CN 201910025178 A CN201910025178 A CN 201910025178A CN 109441467 B CN109441467 B CN 109441467B
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- CN
- China
- Prior art keywords
- cutter
- cutter body
- ring
- piece
- expansion
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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.)
- Expired - Fee Related
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Abstract
The invention relates to the technical field of shield machine accessories and discloses a novel hobbing cutter for a shield machine, which comprises a cutter body, wherein a boss is arranged outside the cutter body, anti-channeling teeth positioned on the left side of the boss are arranged outside the cutter body, an expansion piece is sleeved outside the cutter body, a cutter ring is sleeved outside the expansion piece, a limiting groove is formed in the inner surface of the cutter body, a fixing groove positioned on the left side of the expansion piece is formed in the outside of the cutter body, and an external fixing piece of the fixing groove is arranged. Through inflation piece and cutter body complex setting, conveniently establish the inflation piece cover in the outside of cutter body, through the cooperation of fixed slot and mounting, fix the inflation piece in the outside of cutter body, through the setting of mounting top surface slope form, lead to the cutter ring, conveniently establish the cutter ring cover in the outside of inflation piece, fix the cutter ring through spacing groove and locating part cooperation, conveniently install and change the cutter ring, the change process is simple, need not extra corollary equipment.
Description
Technical Field
The invention relates to the technical field of shield machine accessories, in particular to a novel hob for a shield machine.
Background
The shield machine is a tunneling machine adopting a shield method to perform tunnel excavation, is widely applied to urban underground engineering and subway tunnel excavation operation, mainly comprises a shield, a propulsion system, a tunneling system and the like, wherein the tunneling system comprises a power system, a cutter head, a hob and the like, the hob mainly comprises a cutter body, a cutter shaft, a bearing, a sealing ring, an end cover, lubricating oil and a cutter ring, and the rotation of the cutter head and the autorotation of the hob are utilized to roll and crush a rock mass so as to complete the tunneling. However, the existing hob still has the following problems in the use process:
1. the cutter ring on the hobbing cutter is easy to wear and deform, the cutter ring is worn to a certain degree or deformed and damaged and needs to be replaced, the hobbing cutter used by the shield machine at present is in interference fit with the cutter body, multiple matched facilities need to be used in the cutter ring replacing process, and the replacing process is complicated.
2. When the hob cutter is used for cutting rock soil, the cutter ring rolls and crushes the rock soil, a gap is formed between the cutter ring and the cutter body due to mechanical heat energy generated in the rolling and crushing processes, the cutter body and the cutter ring move to drive the cutter body to rotate, the cutter ring and the cutter body slide relatively, the cutter ring is eccentric, cracked and falls off, the cutter body is worn and scrapped, and the service life is short.
Aiming at the problem, the invention provides a novel hob for a shield machine.
Disclosure of Invention
The invention provides a novel hobbing cutter for a shield machine, wherein a cutter ring and a cutter body on the novel hobbing cutter for the shield machine are installed in a matched installation mode, the process of replacing the cutter ring is simple, additional supporting facilities are not needed, and the cutter ring and the cutter body are in interference fit gradually under the action of heat generated in the working process by utilizing different linear expansion coefficients of different metals when being heated, so that the cutter ring and the cutter ring cannot move, the probability of eccentric wear, crack, falling and damage and scrapping of the cutter body is reduced, and the service life is long.
The invention provides the following technical scheme: the utility model provides a shield constructs novel hobbing cutter that machine was used, includes the cutter body, the outside of cutter body is equipped with the boss, the outside of cutter body is equipped with and is located the left tooth of scurrying of preventing of boss, the outside cover of cutter body is equipped with the inflation piece, the outside cover of inflation piece is equipped with the cutter ring, the spacing groove has been seted up to the internal surface of cutter body, the outside of cutter body has been seted up and is located the left fixed slot of inflation piece, the inside of fixed slot is equipped with the mounting, the outside of cutter body is equipped with and is located the left spacing groove of fixed.
Further, the expansion part comprises an expansion ring, the expansion ring is sleeved with the outer portion of the cutter body, a channeling prevention groove is formed in the inner surface of the expansion ring and is connected with the channeling prevention teeth in a clamped mode, the outer surface of the expansion ring is provided with limiting teeth, and the limiting teeth are connected with the limiting groove in a clamped mode.
Further, the mounting includes fixed snap ring, fixed snap ring and fixed slot joint, the left surface of fixed snap ring is equipped with the direction tooth.
Furthermore, the top surface of the fixing piece is arranged in an inclined manner, the left end of the outer side surface of the cutter body is arranged in an inclined manner, and the inclination of the top surface of the fixing piece is the same as that of the top surface of the cutter body.
Further, the locating part includes spacing snap ring, spacing snap ring and spacing groove joint, the guiding hole has been seted up to the left surface of spacing snap ring, guiding hole and direction tooth looks adaptation, just the guiding hole cup joints with the direction tooth, the right flank of spacing snap ring is equipped with the extrusion piece.
Further, the length value and the width value of the guide hole are both larger than those of the guide tooth.
Further, the linear expansion coefficient of the expansion piece when being heated is larger than that of the cutter ring when being heated.
The invention has the following beneficial effects:
1. through inflation piece and cutter body complex setting, conveniently establish the inflation piece cover in the outside of cutter body, through the cooperation of fixed slot and mounting, fix the inflation piece in the outside of cutter body, through the setting of mounting top surface slope form, lead to the cutter ring, conveniently establish the cutter ring cover in the outside of inflation piece, fix the cutter ring through spacing groove and locating part cooperation, conveniently install and change the cutter ring, the change process is simple, need not extra corollary equipment.
2. Through the cooperation of preventing scurrying tooth and preventing the drunkenness groove, tentatively spacing to the inflation piece, make can not take place the long distance drunkenness between inflation piece and the cutter body, through the cooperation of spacing tooth and spacing groove, tentatively spacing to the cutter ring, make can not take place the long distance drunkenness between inflation piece and the cutter ring, through the setting that the linear expansion coefficient of inflation piece is greater than the linear expansion coefficient of cutter ring, make the inflation piece be heated linear expansion volume and be greater than the linear expansion volume of cutter ring, and then make interference fit between inflation piece and the cutter ring, no longer have the clearance between inflation piece and the cutter body between inflation piece and the cutter ring, can not produce the drunkenness between inflation piece and the cutter ring and between inflation piece and the cutter body, reduce the cutter ring and grind partially, crack, drop, the condemned probability of cutter body damage.
Drawings
FIG. 1 is a schematic structural diagram of a conventional hob;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the expansion member of FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is a schematic structural view of the fixing member of FIG. 2;
FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5;
FIG. 7 is a schematic structural diagram of the limiting element in FIG. 2;
FIG. 8 is a schematic cross-sectional view taken at C-C in FIG. 7;
fig. 9 is a left side view of fig. 8.
In the figure: 1. a cutter body; 2. a boss; 3. anti-channeling teeth; 4. an expansion member; 401. an expansion ring; 402. preventing channeling; 403. limiting teeth; 5. a cutter ring; 6. a limiting groove; 7. fixing grooves; 8. a fixing member; 801. fixing the snap ring; 802. a guide tooth; 9. a limiting groove; 10. a limiting member; 1001. a limit snap ring; 1002. a guide hole; 1003. and extruding the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, a novel hob for a shield machine includes a hob body 1, a boss 2 is disposed outside the hob body 1, a left anti-channeling tooth 3 located on the boss 2 is disposed outside the hob body 1, an expansion piece 4 is sleeved outside the hob body 1, a cutter ring 5 is sleeved outside the expansion piece 4, a limiting groove 6 is disposed on an inner surface of the hob body 1, a fixing groove 7 located on the expansion piece 4 is disposed outside the hob body 1, a fixing member 8 is disposed inside the fixing groove 7, a limiting groove 9 located on the left side of the fixing groove 7 is disposed outside the hob body 1, and a limiting member 10 is disposed inside the limiting groove 9.
The expansion part 4 comprises an expansion ring 401, the expansion ring 401 is sleeved with the outer part of the cutter body 1, an anti-channeling groove 402 is formed in the inner surface of the expansion ring 401, the anti-channeling groove 402 and the anti-channeling teeth 3 are clamped to limit the expansion part 4, so that the expansion part 4 and the cutter body 1 cannot slide, limiting teeth 403 are arranged on the outer surface of the expansion ring 401, the limiting teeth 403 are clamped with the limiting grooves 6 to limit the cutter ring 5, and the cutter ring 5 and the expansion part 4 cannot slide.
The fixing piece 8 comprises a fixing snap ring 801, the fixing snap ring 801 is connected with the fixing groove 7 in a clamped mode to play a fixing role, the expansion piece 4 can be fixed to the outer portion of the cutter body 1, and the left side face of the fixing snap ring 801 is provided with guide teeth 802 to play a guiding role.
The top surface of mounting 8 is slope form setting, the left end of 1 lateral surface of cutter body is slope form setting, and the gradient of 8 top surfaces of mounting is the same with the gradient of 1 top surface of cutter body, plays the guide effect, makes the cover that cutter ring 5 can be easier establish the outside at inflation piece 4, conveniently installs and changes cutter ring 5.
Locating part 10 includes spacing snap ring 1001, spacing snap ring 1001 and spacing groove 9 joint, guiding hole 1002 has been seted up to the left surface of spacing snap ring 1001, guiding hole 1002 and direction tooth 802 looks adaptation, just guiding hole 1002 cup joints with direction tooth 802, the right flank of spacing snap ring 1001 is equipped with extrusion piece 1003, plays limiting displacement, makes sword circle 5 fix the surface at inflation piece 4, the top surface of guiding hole 1002 inner chamber and the bottom surface of extrusion piece 1003 are the slope form, and its gradient is the same with the gradient of 8 top surfaces of mounting.
The length value and the width value of guiding hole 1002 all are greater than the length value and the width value of direction tooth 802, make to have a buffering clearance between guiding hole 1002 and the direction tooth 802, conveniently install locating part 10 to conveniently install and change cutter ring 5, ensure simultaneously that the right-hand member of extrusion piece 1003 is preferred to be contacted with cutter ring 5, guarantee that cutter ring 5 is compressed tightly.
The linear expansion coefficient of the expansion piece 4 when being heated is larger than that of the cutter ring 5 when being heated, so that the linear expansion amount of the expansion piece 4 is larger than that of the cutter ring 5, a gap between the cutter ring 5 and the expansion piece 4 and a gap between the expansion piece 4 and the cutter body 1 are gradually filled, the expansion piece 4 and the cutter ring 5 are further in interference fit, the cutter body and the cutter ring cannot move, the probability that the cutter ring is eccentric, cracked, falls off and damaged and scrapped is reduced, and the service life is long.
When assembling, firstly, the anti-channeling grooves 402 are aligned with the anti-channeling teeth 3, then a right acting force is applied to the expansion piece 4, so that the expansion piece 4 is sleeved on the outer part of the cutter body 1, then the fixing piece 8 is arranged inside the fixing groove 7 by using the snap ring pliers, then the limiting groove 6 is aligned with the limiting tooth 403, and a rightward acting force is applied to the cutter ring 5, so that the cutter ring 5 is sleeved outside the expansion piece 4, then the guide hole 1002 is aligned with the guide tooth 802 and the limiting piece 10 is installed inside the limiting groove 9 by using a snap ring clamp, so that the cutter ring 5 is installed, when the cutter ring 5 needs to be replaced, the temperature of the hob is firstly cooled to the normal temperature, then the retainer 10 is disassembled by using a snap ring pliers, then a leftward acting force is exerted on the cutter ring 5, the cutter ring 5 can be detached without additional matching equipment, and the cutter ring 5 is convenient to install and replace.
In the working process, when the hob cutter cuts rock soil, the cutter ring contacts the rock soil to roll and crush the rock soil, mechanical heat energy generated in the rolling process enables the cutter ring 5 and the expansion piece 4 to be heated to expand linearly, the linear expansion coefficient of the expansion piece 4 when heated is larger than that of the cutter ring 5 when heated, the linear expansion amount of the expansion piece 4 is larger than that of the cutter ring 5, a gap between the cutter ring 5 and the expansion piece 4 and a gap between the expansion piece 4 and the cutter body 1 are filled gradually, the expansion piece 4 and the cutter ring 5 and the expansion piece 4 and the cutter body 1 are in interference fit, the cutter body 1 and the cutter ring 5 cannot move, the probability that the cutter ring is worn and cracked eccentrically, falls off and the cutter body is damaged and scrapped is reduced, and the service life is long.
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 (5)
1. The utility model provides a shield constructs novel hobbing cutter of machine, includes cutter body (1), its characterized in that: the outer part of the cutter body (1) is provided with a boss (2), the outer part of the cutter body (1) is provided with anti-channeling teeth (3) positioned on the left side of the boss (2), the outer part of the cutter body (1) is sleeved with an expansion piece (4), the outer part of the expansion piece (4) is sleeved with a cutter ring (5), the inner surface of the cutter body (1) is provided with a limiting groove (6), the outer part of the cutter body (1) is provided with a fixing groove (7) positioned on the left side of the expansion piece (4), the inner part of the fixing groove (7) is provided with a fixing piece (8), the outer part of the cutter body (1) is provided with a limiting groove (9) positioned on the left side of the fixing groove (7; the expansion piece (4) comprises an expansion ring (401), the expansion ring (401) is sleeved with the outer part of the cutter body (1), an anti-channeling groove (402) is formed in the inner surface of the expansion ring (401), the anti-channeling groove (402) is clamped with the anti-channeling teeth (3), limiting teeth (403) are arranged on the outer surface of the expansion ring (401), and the limiting teeth (403) are clamped with the limiting grooves (6); the linear expansion coefficient of the expansion piece (4) when being heated is larger than that of the cutter ring (5) when being heated.
2. The novel hob for a shield tunneling machine according to claim 1, wherein: fixing piece (8) are including fixed snap ring (801), fixed snap ring (801) and fixed slot (7) joint, the left surface of fixed snap ring (801) is equipped with direction tooth (802).
3. The novel hob for a shield tunneling machine according to claim 1, wherein: the top surface of the fixing piece (8) is arranged in an inclined manner, the left end of the outer side surface of the cutter body (1) is arranged in an inclined manner, and the inclination of the top surface of the fixing piece (8) is the same as that of the top surface of the cutter body (1).
4. The novel hob for a shield tunneling machine according to claim 1, wherein: locating part (10) are including spacing snap ring (1001), spacing snap ring (1001) and spacing groove (9) joint, guiding hole (1002) have been seted up to the left surface of spacing snap ring (1001), guiding hole (1002) and direction tooth (802) looks adaptation, just guiding hole (1002) cup joint with direction tooth (802), the right flank of spacing snap ring (1001) is equipped with extrusion piece (1003).
5. The novel hob for a shield tunneling machine according to claim 4, wherein: the length value and the width value of the guide hole (1002) are both larger than those of the guide tooth (802).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910025178.4A CN109441467B (en) | 2019-01-11 | 2019-01-11 | Novel hobbing cutter for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910025178.4A CN109441467B (en) | 2019-01-11 | 2019-01-11 | Novel hobbing cutter for shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109441467A CN109441467A (en) | 2019-03-08 |
| CN109441467B true CN109441467B (en) | 2020-08-14 |
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ID=65544112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910025178.4A Expired - Fee Related CN109441467B (en) | 2019-01-11 | 2019-01-11 | Novel hobbing cutter for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441467B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202483583U (en) * | 2012-03-30 | 2012-10-10 | 常德市中天精密工具有限公司 | Hobbing cutter used for shield machine |
| CN103244138A (en) * | 2013-05-18 | 2013-08-14 | 大连理工大学 | Design method of slidingly-supported disc-shaped hob of heading machine |
| CN205805564U (en) * | 2016-07-13 | 2016-12-14 | 德阳宏源机电工程有限责任公司 | A kind of hobboing cutter being applicable to shield machine shield operation |
| CN106854993A (en) * | 2015-12-08 | 2017-06-16 | 常德市中天精密工具有限公司 | Bimetallic hobboing cutter cutter ring |
| CN106854992A (en) * | 2015-12-08 | 2017-06-16 | 常德市中天精密工具有限公司 | A kind of new precompressed hobboing cutter |
| CN107605500A (en) * | 2017-09-14 | 2018-01-19 | 株洲钻石钻掘工具有限公司 | A kind of composite shield hobboing cutter cutter ring |
| CN208310780U (en) * | 2018-02-07 | 2019-01-01 | 马鞍山灵山机械设备科技有限公司 | A kind of shield machine cutter |
-
2019
- 2019-01-11 CN CN201910025178.4A patent/CN109441467B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202483583U (en) * | 2012-03-30 | 2012-10-10 | 常德市中天精密工具有限公司 | Hobbing cutter used for shield machine |
| CN103244138A (en) * | 2013-05-18 | 2013-08-14 | 大连理工大学 | Design method of slidingly-supported disc-shaped hob of heading machine |
| CN106854993A (en) * | 2015-12-08 | 2017-06-16 | 常德市中天精密工具有限公司 | Bimetallic hobboing cutter cutter ring |
| CN106854992A (en) * | 2015-12-08 | 2017-06-16 | 常德市中天精密工具有限公司 | A kind of new precompressed hobboing cutter |
| CN205805564U (en) * | 2016-07-13 | 2016-12-14 | 德阳宏源机电工程有限责任公司 | A kind of hobboing cutter being applicable to shield machine shield operation |
| CN107605500A (en) * | 2017-09-14 | 2018-01-19 | 株洲钻石钻掘工具有限公司 | A kind of composite shield hobboing cutter cutter ring |
| CN208310780U (en) * | 2018-02-07 | 2019-01-01 | 马鞍山灵山机械设备科技有限公司 | A kind of shield machine cutter |
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| Publication number | Publication date |
|---|---|
| CN109441467A (en) | 2019-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200717 Address after: Taizhou City, Zhejiang province 318055 new town, Luqiao District Road No. 389 Applicant after: Zhejiang shuoyang Machinery Co.,Ltd. Address before: 310000 Jixiaolu 50, Jianggan District, Hangzhou City, Zhejiang Province Applicant before: Yan Xiaoying |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200814 Termination date: 20220111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |