CN110886615A - Tearing knife device for shield machine - Google Patents
Tearing knife device for shield machine Download PDFInfo
- Publication number
- CN110886615A CN110886615A CN201911308209.3A CN201911308209A CN110886615A CN 110886615 A CN110886615 A CN 110886615A CN 201911308209 A CN201911308209 A CN 201911308209A CN 110886615 A CN110886615 A CN 110886615A
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- China
- Prior art keywords
- tearing
- knife
- rotating shaft
- worm
- machine according
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- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000005641 tunneling Effects 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a tearing knife device for a shield machine, which comprises a knife box, a knife holder, at least two tearing knives, a rotary driving mechanism and a locking mechanism, wherein the knife box is provided with a knife box body; the cutter holder is rotationally connected to the cutter box through a rotating shaft; the tearing knife is arranged on the knife holder along the rotating direction of the rotating shaft; the rotary driving mechanism is connected with the rotating shaft to drive the rotating shaft to rotate so as to enable the corresponding tearing knife to rotate to a working position; the locking mechanism is connected with the rotating shaft so as to lock the rotating shaft after the corresponding tearing knife rotates to the working position. The invention can realize the tool changing without entering the soil bin manually, has the characteristics of high tool changing speed and high safety, and improves the continuous tunneling service life.
Description
Technical Field
The invention relates to a tearing knife device for a shield machine.
Background
At present, a tearing cutter for a shield machine is a leading cutter of the shield machine, and the ground breaking principle is that the tearing cutter is arranged at the foremost end of a shield cutter head. Under the action of kiloton thrust of the shield tunneling machine, the cutter point is directly inserted into a soil layer, the soil layer is directly torn and loosened along with the rotation of the cutter head, the cutter head is commonly used for tunneling in soft soil below 20Mpa or completely weathered rock geological layers, and the cutter head belongs to a main cutter for tunneling the shield tunneling machine in the soft soil layer.
The service life of the tearing cutter serving as a main cutter is about 1 kilometer under normal conditions, the service life is greatly reduced when the tearing cutter is suddenly changed into a severe form or is improperly operated, and if the tearing cutter is not replaced in time after the cutter is worn, the shield machine cannot normally tunnel.
At present, three modes of changing cutters in tunneling are provided, firstly, under the condition that a tunneling stratum is relatively stable and has less water content, a certain reinforcement measure is taken for the tunneling stratum, and an operator enters a soil bin behind a cutter head of a shield tunneling machine to change the cutters under the normal pressure condition; under the condition of unstable stratum, if the stratum is rich in water and easy to collapse, after a plurality of reinforcing procedures are needed to be carried out on the geological stratum of the tunneling surface, air with certain pressure is applied to the soil bin, so that the geological stratum of the tunneling surface is kept in a stable state within a certain time, and professionals with diving quality are asked to enter the soil bin under pressure to carry out short-time alternate tool changing; and in the third situation, when a severe geological formation is encountered, the cutter of the cutter disc of the shield machine is clamped, the tunneling geological formation is very easy to collapse or contains toxic gas, and under the condition that the former two cutter changing modes cannot be adopted, a vertical shaft needs to be drilled in front of the cutter disc of the shield machine from the ground, and after the vertical shaft is reinforced, an operator enters the vertical shaft to perform open type cutter changing.
The first two tool changing modes not only have high accident risk, but also consume time and construction cost, and the third mode needs to consume a large amount of financial resources and greatly prolong the construction period, and if the ground does not have the condition of drilling a vertical shaft (a building or under the water surface), a method with higher cost is needed.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide the tearing cutter device for the shield machine, which can realize the cutter changing without entering the soil bin manually, has the characteristics of high cutter changing speed and high safety, and improves the continuous tunneling service life of the tearing cutter device.
The technical scheme adopted by the invention for solving the technical problems is as follows: a kind of shield constructs the machine and tears the knife device, it includes:
a knife box;
the cutter holder is rotatably connected to the cutter box through a rotating shaft;
the tearing knives are arranged on the knife holder along the rotating direction of the rotating shaft;
the rotary driving mechanism is connected with the rotating shaft to drive the rotating shaft to rotate so as to enable the corresponding tearing knife to rotate to a working position;
and the locking mechanism is connected with the rotating shaft so as to lock the rotating shaft after the corresponding tearing knife rotates to the working position.
Furthermore, the number of the tearing knives is three, and the three tearing knives are uniformly distributed along the rotating direction of the rotating shaft.
Furthermore, the knife holder is provided with a mounting groove matched with the corresponding tearing knife, and at least part of the tearing knife is inserted into the mounting groove and locked.
Further, the rotary drive mechanism includes:
a worm gear connected to the rotating shaft;
the worm is in meshed connection with the worm wheel;
and the power mechanism is connected with the worm to drive the worm to rotate.
Further, the power mechanism comprises:
a motor;
and the input shaft of the speed reducer is connected with the motor, and the output shaft of the speed reducer is connected with the worm.
Furthermore, the tearing knife device for the shield machine further comprises a worm support piece, and the worm is rotatably connected to the worm support piece.
Further, the locking mechanism includes:
the clamping rod telescopic assembly is provided with a clamping rod suitable for being driven to stretch;
the fixed cover in location locking wheel on the rotation axis, be equipped with the card hole that corresponds the setting with corresponding tearing sword on the location locking wheel, the flexible subassembly of kelly is suitable for and drives after corresponding tearing sword rotates to the operating position the kelly stretches into corresponding card hole.
Further, the clamping rod telescopic component is a jack.
Furthermore, a partition board for separating the positioning driving wheel from the cutter holder is arranged on the cutter box.
Further, the rotating shaft is rotatably connected to the cutter box through a bush bearing.
After the technical scheme is adopted, when one of the tearing knives needs to be replaced after being worn, the locking mechanism is firstly unlocked to lock the rotating shaft, then the rotating driving mechanism is controlled to drive the rotating shaft to rotate, so that the next unworn tearing knife rotates to a working position, then the rotating shaft is locked through the locking mechanism to complete a stopping process, and thus the work of automatically replacing the knife head is completed,
drawings
Fig. 1 is a perspective view of a tearing knife device for a shield machine according to the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1, a tearing knife device for a shield machine comprises:
a knife box 1;
the tool apron 2 is rotatably connected to the tool box 1 through a rotating shaft 3;
at least two tearing knives 4, wherein the tearing knives 4 are arranged on the knife holder 2 along the rotating direction of the rotating shaft 3;
the rotary driving mechanism is connected with the rotating shaft 3 to drive the rotating shaft 3 to rotate so as to enable the corresponding tearing knife 4 to rotate to the working position;
a locking mechanism connected to the rotary shaft 3 to lock the rotary shaft 3 after the corresponding tearing knife 4 is rotated to a working position.
As shown in fig. 1, the number of the tearing knives 4 is three, and the three tearing knives 4 are uniformly distributed along the rotation direction of the rotating shaft 3.
As shown in fig. 1, the knife holder 2 is provided with a mounting groove matched with the corresponding tearing knife 4, and at least part of the tearing knife 4 is inserted into the mounting groove and locked.
As shown in fig. 1, the rotary drive mechanism includes:
a worm wheel 51 connected to the rotary shaft 3;
a worm 52 in meshed connection with the worm wheel 51;
and a power mechanism connected with the worm 52 to drive the worm 52 to rotate.
As shown in fig. 1, the power mechanism includes:
a motor 61;
and an input shaft of the speed reducer 62 is connected with the motor 61, and an output shaft of the speed reducer 62 is connected with the worm 52.
As shown in fig. 1, the tearing knife device for the shield machine further comprises a worm support 7, and the worm 52 is rotatably connected to the worm support 7.
As shown in fig. 1, the locking mechanism includes:
the clamping rod telescopic assembly is provided with a clamping rod suitable for being driven to stretch;
the fixed cover in location detent wheel 8 on the rotation axis 3, be equipped with the card hole 81 that corresponds the setting with corresponding sword 4 of tearing on the location detent wheel 8, the flexible subassembly of kelly is suitable for and tears sword 4 corresponding and rotate to the operating position after the drive the kelly stretches into corresponding card hole.
As shown in fig. 1, a partition plate 9 for separating the positioning driving wheel 8 and the tool apron 2 is disposed on the tool box 1.
As shown in fig. 1, the grab bar retracting assembly is a jack 10.
As shown in fig. 1, the rotary shaft 3 is rotatably coupled to the cutter housing 1 through a bearing shoe.
When one tearing knife 4 needs to be replaced after being worn, firstly, oil is reversely supplied to the jack 10, so that a clamping rod of the jack 10 is separated from the stopping positioning wheel 8, then the control motor 61 drives the speed reducer 62 to drive the worm 52, the worm wheel 51 arranged on the rotating shaft 3 is driven, the tearing knives 4 arranged on the knife holder 2 rotate together for 120 degrees, new tearing knives 4 which are not worn on the same knife holder 2 rotate to the working position right above the knife box 1, then the jack 10 is positively supplied with the oil, so that the clamping rod of the jack 10 is wedged into the conical positioning holes in the positioning and stopping wheel 8 again to complete the stopping process, and the work of automatically replacing knife heads is completed.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. The utility model provides a shield constructs machine tear sword device which characterized in that, it includes:
a knife box (1);
the tool apron (2) is rotatably connected to the tool box (1) through a rotating shaft (3);
the tearing knives (4) are arranged on the knife holder (2) along the rotating direction of the rotating shaft (3);
the rotary driving mechanism is connected with the rotating shaft (3) to drive the rotating shaft (3) to rotate so as to enable the corresponding tearing knife (4) to rotate to a working position;
a locking mechanism connected to the rotary shaft (3) to lock the rotary shaft (3) after the respective tearing knife (4) has been rotated to a working position.
2. The tearing knife device for the shield tunneling machine according to claim 1,
the number of the tearing knives (4) is three, and the three tearing knives (4) are uniformly distributed along the rotating direction of the rotating shaft (3).
3. The tearing knife device for the shield tunneling machine according to claim 1,
the knife holder (2) is provided with a mounting groove matched with the corresponding tearing knife (4), and at least part of the tearing knife (4) is inserted into the mounting groove and locked.
4. The tearing knife device for the shield tunneling machine according to claim 1,
the rotary drive mechanism includes:
a worm wheel (51) connected to the rotary shaft (3);
a worm (52) in meshed connection with the worm wheel (51);
and the power mechanism is connected with the worm (52) to drive the worm (52) to rotate.
5. The tearing knife device for the shield tunneling machine according to claim 4,
the power mechanism comprises:
a motor (61);
the input shaft of the speed reducer (62) is connected with the motor (61), and the output shaft of the speed reducer (62) is connected with the worm (52).
6. The tearing knife device for the shield tunneling machine according to claim 4,
the worm support (7) is further included, and the worm (52) is rotationally connected to the worm support (7).
7. The tearing knife device for the shield tunneling machine according to claim 1,
the locking mechanism includes:
the clamping rod telescopic assembly is provided with a clamping rod suitable for being driven to stretch;
fixed cover in location locking wheel (8) on rotation axis (3), be equipped with on location locking wheel (8) and correspond card hole (81) that set up with corresponding tearing sword (4), the flexible subassembly of kelly is suitable for tearing corresponding sword (4) and rotate to the operating position after the drive the kelly stretches into corresponding card hole.
8. The tearing knife device for the shield tunneling machine according to claim 7,
the knife box (1) is provided with a partition plate (9) for separating the positioning driving wheel (8) and the knife holder (2).
9. The tearing knife device for the shield tunneling machine according to claim 7,
the clamping rod telescopic component is a jack (10).
10. The tearing knife device for the shield tunneling machine according to claim 1,
the rotating shaft (3) is rotatably connected to the cutter box (1) through a bearing bush type bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308209.3A CN110886615A (en) | 2019-12-18 | 2019-12-18 | Tearing knife device for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308209.3A CN110886615A (en) | 2019-12-18 | 2019-12-18 | Tearing knife device for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110886615A true CN110886615A (en) | 2020-03-17 |
Family
ID=69752416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911308209.3A Pending CN110886615A (en) | 2019-12-18 | 2019-12-18 | Tearing knife device for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110886615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188467A (en) * | 2021-03-31 | 2021-07-30 | 山东大学 | Visual detection device and method for cutter in shield soil cabin |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068350A (en) * | 2002-08-05 | 2004-03-04 | Kumagai Gumi Co Ltd | Shield machine and exchanging method for cutter bit |
| CN201705361U (en) * | 2010-04-14 | 2011-01-12 | 北京华隧通掘进装备有限公司 | Replaceable pilot cutter mounting device for shield machine |
| CN201747380U (en) * | 2010-09-10 | 2011-02-16 | 中铁隧道装备制造有限公司 | Shield and TBM cutter head new wedge-shaped installation cutter rest |
| CN108555930A (en) * | 2018-04-24 | 2018-09-21 | 中铁工程装备集团有限公司 | A kind of tearing cutter replaces manipulator and its control method |
| CN108825252A (en) * | 2018-09-11 | 2018-11-16 | 太原理工大学 | The rotational automatic tool changing device of three tool apron of shield machine and method |
| CN108979650A (en) * | 2018-05-30 | 2018-12-11 | 辽宁三三工业有限公司 | A kind of cutter head of shield machine automatic tool changer |
| CN211230468U (en) * | 2019-12-18 | 2020-08-11 | 湖南合盾工程刀具有限公司 | Tearing knife device for shield machine |
-
2019
- 2019-12-18 CN CN201911308209.3A patent/CN110886615A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068350A (en) * | 2002-08-05 | 2004-03-04 | Kumagai Gumi Co Ltd | Shield machine and exchanging method for cutter bit |
| CN201705361U (en) * | 2010-04-14 | 2011-01-12 | 北京华隧通掘进装备有限公司 | Replaceable pilot cutter mounting device for shield machine |
| CN201747380U (en) * | 2010-09-10 | 2011-02-16 | 中铁隧道装备制造有限公司 | Shield and TBM cutter head new wedge-shaped installation cutter rest |
| CN108555930A (en) * | 2018-04-24 | 2018-09-21 | 中铁工程装备集团有限公司 | A kind of tearing cutter replaces manipulator and its control method |
| CN108979650A (en) * | 2018-05-30 | 2018-12-11 | 辽宁三三工业有限公司 | A kind of cutter head of shield machine automatic tool changer |
| CN108825252A (en) * | 2018-09-11 | 2018-11-16 | 太原理工大学 | The rotational automatic tool changing device of three tool apron of shield machine and method |
| CN211230468U (en) * | 2019-12-18 | 2020-08-11 | 湖南合盾工程刀具有限公司 | Tearing knife device for shield machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188467A (en) * | 2021-03-31 | 2021-07-30 | 山东大学 | Visual detection device and method for cutter in shield soil cabin |
| CN113188467B (en) * | 2021-03-31 | 2022-07-29 | 山东大学 | Visual detection device and method for cutter in shield soil cabin |
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