CN110617076A - Swinging push-pull hob cutter system and cutter changing method thereof - Google Patents
Swinging push-pull hob cutter system and cutter changing method thereof Download PDFInfo
- Publication number
- CN110617076A CN110617076A CN201911053836.7A CN201911053836A CN110617076A CN 110617076 A CN110617076 A CN 110617076A CN 201911053836 A CN201911053836 A CN 201911053836A CN 110617076 A CN110617076 A CN 110617076A
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- Prior art keywords
- push
- pull
- hob
- swing
- pressing block
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 6
- 230000005641 tunneling Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21D9/08—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
-
- 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
- E21D9/087—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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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- 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)
- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
The invention discloses a swinging push-pull hob cutter system and a cutter changing method thereof, and solves the problems that in the prior art, the cutter changing automation degree is low, and the degree of matching with a cutter changing robot is not high. The invention comprises a cutter box and a hob, wherein the inner walls of two sides of the cutter box are provided with a fixture block for clamping and fixing a hob shaft and a swinging push-pull locking mechanism, and the fixture block corresponds to the swinging push-pull locking mechanism. The invention adopts the high degree of matching between the swing push-pull locking mechanism and the tool changing robot, and the tool changing robot controls the swing push-pull locking mechanism, and the rotating locking nut (or the rotating handle) drives the swing pressing block to swing up and down through the push-pull rod (or the threaded rod), so that whether the swing pressing block presses the cutter shaft of the hob or not is realized, the fast and accurate tool changing is realized, and the tool changing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of shield cutters, in particular to a swinging push-pull hob cutter system and a cutter changing method thereof.
Background
The cutter consumption is big, the change is frequent in full-face entry driving machine work progress, and cutter tool changing operating time accounts for tunnel construction cycle more than 10%, and current cutter tool changing work mainly relies on manual work, and the operation potential safety hazard under construction environment such as big buried depth, high water pressure is big, major incident such as casualties easily appears. According to statistics, nearly 70% of tunnel construction safety accidents in China are directly related to manual tool changing operation, and the international industry problem of tool changing danger becomes a bottleneck for restricting tunnel construction safety and efficiency under complex geological conditions. In 2022, the total length of tunnels such as subways, highways and railways in China is estimated to exceed 10000 kilometers, wherein medium-length and extra-long tunnels account for about 2/3, and huge market demands put higher requirements on the construction efficiency and safety of full-face tunneling equipment. At present, the disc cutters of the shield tunneling machine and the TBM are mainly fixed on the cutter seats in a mode of connecting C-shaped blocks and bolts, the mode has high reliability, but the mode needs to be completed by cooperation of a plurality of people during disassembly, time and labor are wasted, and the automation of cutter replacement is difficult to realize by the installation mode. Therefore, the tool detection and tool changing operation is imperative to be realized in a high-efficiency and safe 'robot changing' operation mode. In order to realize efficient and rapid machine tool changing, an original cutter system needs to be improved, and aiming at the problem, a novel hob cutter system matched with the original cutter system needs to be researched and developed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a swinging push-pull hob cutter system and a cutter changing method thereof, and solves the problems that in the prior art, the cutter changing automation degree is low and the degree of matching with a cutter changing robot is not high.
The technical scheme of the invention is realized as follows: a cutter system of a swinging push-pull hob comprises a hob box and a hob, wherein a fixture block and a swinging push-pull locking mechanism are arranged on the inner walls of two sides of the hob box and used for clamping and fixing a hob shaft, and the fixture block corresponds to the swinging push-pull locking mechanism.
The fixture block is fixedly connected with the knife box through a fastening bolt, and the swinging push-pull locking mechanism is movably connected with the knife box. The tool changing frame man pushes and pulls the swinging push-pull locking mechanism through the actuating mechanism, so that the swinging push-pull locking mechanism swings to realize whether the hob cutter shaft is pressed or not.
The swing push-pull locking mechanism comprises a swing pressing block, the swing pressing block is hinged to the cutter box, a connecting rod is hinged to the swing pressing block, a threaded hole is formed in the cutter box, a threaded rod is arranged in the threaded hole, one end of the threaded rod is hinged to the connecting rod through a ball hinge, and a rotating handle is arranged at the other end of the threaded rod.
One end of the swinging pressing block is hinged to the inner wall of the cutter box, the threaded hole is obliquely arranged in the cutter box, and the threaded rod pushes the swinging pressing block to swing around the hinged point through the connecting rod.
The inside of sword case is equipped with the mounting groove, and the bottom of mounting groove is equipped with the mounting hole, mounting hole and swing push-and-pull locking mechanism cooperation.
The swing push-pull locking mechanism comprises a swing pressing block and a push-pull rod, the swing pressing block is positioned in the mounting groove and is hinged with the cutter box, the swing pressing block is provided with a unthreaded hole, the upper end of the push-pull rod is rotatably arranged in the unthreaded hole, and the push-pull rod is limited in the unthreaded hole through a wear-resistant welding block arranged in the unthreaded hole; the push-pull rod downwards passes through the mounting hole and is fixed through the locking nut.
The mounting hole is a special-shaped swing through hole, the push-pull rod is an integral screw rod, the integral screw rod is located in the special-shaped swing through hole and matched with the special-shaped swing through hole, and the integral screw rod can swing in the special-shaped swing through hole.
The mounting hole is a vertical through hole, the push-pull rod comprises an upper connecting rod, a middle connecting rod and a lower screw rod, two ends of the middle connecting rod are respectively hinged with the upper connecting rod and the lower screw rod, and the upper connecting rod, the middle connecting rod and the lower screw rod are all matched with the vertical through hole.
A tool changing method of a swinging push-pull hob cutter system comprises the following steps: s1: disassembling the cutter: the tool changing robot jacks up the swinging pressing block, the swinging pressing block rotates around a hinge point, the swinging pressing block is separated from a cutter shaft of the hob and gives way for taking out the hob, and then the hob is taken out;
s2: tool installation: and (3) placing a new hob into the hob box, clamping the hob shaft in the clamping block, and then under the action of the hob changing robot, swinging the pressing block to downwards rotate around the hinged point to be gradually close to the hob shaft until the swinging pressing block tightly presses the hob shaft, so that the installation of the hob is completed.
The invention adopts the high degree of matching between the swing push-pull locking mechanism and the tool changing robot, and the tool changing robot controls the swing push-pull locking mechanism, and the rotating locking nut (or the rotating handle) drives the swing pressing block to swing up and down through the push-pull rod (or the threaded rod), so that whether the swing pressing block presses the cutter shaft of the hob or not is realized, the fast and accurate tool changing is realized, and the tool changing efficiency is improved. The invention is matched with a tool changing robot, has high automation degree, is convenient to control and adjust, reduces the risk of manual tool changing, and improves the construction safety coefficient.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic half-section view of the present invention in example 1.
FIG. 3 is a schematic view showing the tool magazine of the present invention in example 1 without the tools.
Fig. 4 is a schematic view of the unlocked state of the swinging push-pull locking mechanism of the present invention in embodiment 1.
Fig. 5 is a schematic view of the unlocked state of the swinging push-pull locking mechanism of the present invention in embodiment 2.
Fig. 6 is a half-sectional schematic view of the locking state of the swing push-pull locking mechanism of the invention in embodiment 2.
Fig. 7 is a half-sectional schematic view of the unlocked state of the swinging push-pull locking mechanism of the present invention in embodiment 3.
Fig. 8 is a half-sectional schematic view of the locking state of the swing push-pull locking mechanism of the present invention in embodiment 3.
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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Embodiment 1, as shown in fig. 1, a swinging push-pull hob cutter system includes a cutter box 1 and a hob 3, the hob is located in the cutter box and detachably connected to the cutter box, two ends of the cutter box 1 are provided with connecting plates 2 in a clamping manner, and the connecting plates 2 are detachably connected to the cutter box 1, so as to seal the cutter box. The inner walls of two sides of the knife box 1 are provided with a fixture block 4 for clamping and fixing a hob shaft 6 and a swinging push-pull locking mechanism 5, and the fixture block 4 corresponds to the swinging push-pull locking mechanism 5. When the rotary cutter is installed, the rotary cutter shaft is positioned between the clamping block and the swinging push-pull locking mechanism, and the rotary cutter shaft is pressed or not through the up-and-down swinging movement of the swinging push-pull locking mechanism.
Further, as shown in fig. 2, the fixture block 4 is fixedly connected with the hob box 1 through a fastening bolt 7, the block is fixed, and whether the hob shaft is locked or not is realized through the swinging of the swinging push-pull locking mechanism relative to the fixture block. The swing push-pull locking mechanism 5 is movably connected with the tool box 1, so that the tool box is convenient to match with a tool changing robot, and automatic tool changing is realized. The swing push-pull locking mechanism 5 comprises a swing pressing block 501, the swing pressing block 501 is hinged with the knife box 1, namely, one end of the swing pressing block 501 is hinged with the inner wall of the knife box 1, and the swing pressing block swings up and down around the hinged point. The swinging pressing block 501 is hinged with a connecting rod 502, the knife box 1 is provided with a threaded hole 504 which is obliquely arranged, a threaded rod 503 is arranged in the threaded hole 504, one end of the threaded rod 503 is hinged with the connecting rod 502 through a ball hinge 505 (namely the threaded rod can be relatively connected and rotated), and the other end of the threaded rod 503 is provided with a rotating handle 506, so that the tool changing robot can be clamped conveniently, and the matching degree with the robot is improved. During the use, the tool changing hand of tool changing robot blocks the swing handle and rotates, and the threaded rod rotates in the screw hole, and threaded rod 503 promotes swing briquetting 501 through connecting rod 502 and swings around the pin joint, realizes the upwards or downward swing of swing briquetting, and then realizes compressing tightly whether to the hobbing cutter arbor.
The tool changing method of the swinging push-pull hob cutter system, as shown in fig. 4 and 5, comprises the following steps: s1: disassembling the cutter: the tool changing robot reversely rotates the threaded rod, the threaded rod obliquely extends out of the threaded hole, the swinging pressing block 501 is jacked upwards through the connecting rod, the swinging pressing block 501 rotates upwards around a hinge point, the swinging pressing block 501 is separated from the hob shaft 6 and gives way for taking out the hob 3, and then the hob is taken out;
s2: tool installation: the new hob is placed into the hob box, the hob shaft 6 is clamped in the fixture block 4, then the hob changing robot rotates the threaded rod in the forward direction, the threaded rod is obliquely retracted into the threaded hole, the connecting rod drives the swing pressing block 501 to rotate downwards around the hinged point to be gradually close to the hob shaft 6 until the swing pressing block 501 presses the hob shaft 6, and the installation of the hob is completed.
Embodiment 2, as shown in fig. 5 and 6, in a system of a swinging push-pull hob cutter, an installation groove 8 is provided inside the cutter box 1, an installation hole 9 is provided at the bottom of the installation groove 8, and the installation hole 9 is matched with the swinging push-pull locking mechanism 5. The swing push-pull locking mechanism 5 is matched with the mounting groove, a swing pressing block 501 of the swing push-pull locking mechanism is hinged with the knife box 1, and the swing push-pull locking mechanism and the movement direction thereof are positioned to realize quick knife changing.
Further, the swing push-pull locking mechanism 5 comprises a swing pressing block 501 and a push-pull rod 5-2, the swing pressing block 501 is located in the installation groove 8, the swing pressing block 501 is hinged to the cutter box 1, and the edge pressing of the swing pressing block 501 is matched with the hob cutter shaft, so that stable anti-skid pressing and fixing of the hob cutter shaft are achieved. The swing pressing block 501 is provided with an unthreaded hole 5-5, the upper end of the push-pull rod 5-2 is rotatably arranged in the unthreaded hole 5-5, and the unthreaded hole is a stepped hole and is used for positioning and clamping the push-pull rod. The push-pull rod 5-2 is limited in the unthreaded hole 5-5 through a wear-resistant welding block 5-6 welded in the unthreaded hole 5-5 and used for plugging the unthreaded hole 5-5 and limiting the movement of the threaded rod in the vertical direction, and the push-pull rod can rotate and swing at a small angle in the unthreaded hole; the push-pull rod 5-2 passes through the mounting hole 9 downwards and is fixed by the locking nut 5-4. The tool changing robot rotates the locking nut, the locking nut drives the push-pull rod to rotate along the mounting hole, and the lower portion of the push-pull rod is provided with external threads, so that whether the swinging pressing block is locked or not is achieved.
Furthermore, the mounting hole 9 is a special-shaped swing through hole, the push-pull rod 5-2 is an integral screw rod, the integral screw rod is positioned in the special-shaped swing through hole and matched with the special-shaped swing through hole, and the integral screw rod can swing in the special-shaped swing through hole. When the tool is changed, a tool changing hand of the tool changing robot tightly clamps the locking nut, the height of the push-pull rod for jacking the swing pressing block is adjusted by rotating the locking nut, and the swing pressing block rotates around a hinge point by rotating the angle of the push-pull rod in the special-shaped swing through hole.
The other structure is the same as embodiment 1.
The tool changing method of the swinging push-pull hob cutter system is characterized in that: the method comprises the following steps: s1: disassembling the cutter: a tool changing hand of the tool changing robot clamps the locking nut, reversely rotates the locking nut, the locking nut moves downwards along the push-pull rod, loosens the swinging pressing block, then pushes the push-pull rod to the leftmost end of the special-shaped swinging through hole, at the moment, the push-pull rod pushes the swinging pressing block 501 upwards, the swinging pressing block 501 rotates around a hinge point, the swinging pressing block 501 is separated from the hob cutter shaft 6 and gives way for taking out the hob 3, and then the hob is taken out;
s2: tool installation: and (3) putting a new hob into the hob box, clamping the hob shaft 6 in the fixture block 4, then pushing a push-pull rod to the rightmost end of the special-shaped swing through hole by the hob changing robot, downwards rotating the swing pressing block 501 around a hinged point until the swing pressing block is contacted with the hob shaft 6, and then clockwise rotating the locking nut until the swing pressing block 501 tightly presses the hob shaft 6 to finish the installation of the hob.
Embodiment 3, as shown in fig. 7 and 8, in an oscillating push-pull hob cutter system, the mounting hole 9 is a vertical through hole, the push-pull rod 5-2 includes an upper connecting rod 201, a middle connecting rod 202 and a lower screw 203, two ends of the middle connecting rod 202 are respectively hinged to the upper connecting rod 201 and the lower screw 203, and the upper connecting rod 201, the middle connecting rod 202 and the lower screw 203 are all matched with the vertical through hole. The upper connecting rod 201 is rotatably arranged in the unthreaded hole, and the lower screw rod 203 is positioned in the vertical through hole and is fixed through a locking nut.
The other structure is the same as embodiment 2.
The tool changing method of the swinging push-pull hob cutter system is characterized in that: the method comprises the following steps: s1: disassembling the cutter: the tool changing robot reversely rotates the locking nut, the lower screw rod jacks the swinging pressing block 501 upwards through the middle connecting rod and the upper connecting rod, the swinging pressing block 501 rotates around a hinge point, the swinging pressing block 501 is separated from the hob cutter shaft 6 and gives way for taking out the hob 3, and then the hob is taken out;
s2: tool installation: and (3) putting a new hob into the hob box, clamping the hob shaft 6 in the fixture block 4, then clockwise rotating a lock nut by the hob changing robot, driving the swing pressing block 501 to downwards rotate around a hinged joint by the lower screw rod through the middle connecting rod and the upper connecting rod, gradually approaching the hob shaft 6 until the swing pressing block 501 tightly presses the hob shaft 6, and finishing the installation of the hob.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a swing push-and-pull hobbing cutter system, includes knife case (1) and hobbing cutter (3), its characterized in that: the inner walls of two sides of the knife box (1) are provided with a fixture block (4) for clamping and fixing a hob cutter shaft (6) and a swinging push-pull locking mechanism (5), and the fixture block (4) corresponds to the swinging push-pull locking mechanism (5).
2. An oscillating push-pull hob system according to claim 1, characterized in that: the clamping block (4) is fixedly connected with the knife box (1) through a fastening bolt (7), and the swinging push-pull locking mechanism (5) is movably connected with the knife box (1).
3. An oscillating push-pull hob system according to claim 1 or 2, characterized in that: the swing push-pull locking mechanism (5) comprises a swing pressing block (501), the swing pressing block (501) is hinged to the knife box (1), a connecting rod (502) is hinged to the swing pressing block (501), a threaded hole (504) is formed in the knife box (1), a threaded rod (503) is arranged in the threaded hole (504), one end of the threaded rod (503) is hinged to the connecting rod (502) through a ball hinge (505), and a rotating handle (506) is arranged at the other end of the threaded rod.
4. An oscillating push-pull hob system according to claim 3, characterized in that: one end of the swing pressing block (501) is hinged to the inner wall of the cutter box (1), the threaded hole (504) is obliquely arranged in the cutter box (1), and the threaded rod (503) pushes the swing pressing block (501) to swing around a hinged point through the connecting rod (502).
5. An oscillating push-pull hob system according to claim 1 or 2, characterized in that: the utility model discloses a sword case, including sword case (1), mounting groove (8) are equipped with to the inside of sword case (1), and the bottom of mounting groove (8) is equipped with mounting hole (9), and mounting hole (9) and swing push-and-pull locking mechanism (5) cooperation.
6. An oscillating push-pull hob system according to claim 5, characterized in that: the swing push-pull locking mechanism (5) comprises a swing pressing block (501) and a push-pull rod (5-2), the swing pressing block (501) is located in the installation groove (8), the swing pressing block (501) is hinged to the cutter box (1), an unthreaded hole (5-5) is formed in the swing pressing block (501), the upper end of the push-pull rod (5-2) is rotatably arranged in the unthreaded hole (5-5), and the push-pull rod (5-2) is limited in the unthreaded hole (5-5) through a wear-resistant welding block (5-6) arranged in the unthreaded hole (5-5); the push-pull rod (5-2) downwards passes through the mounting hole (9) and is fixed by the locking nut (5-4).
7. An oscillating push-pull hob system according to claim 6, wherein: the mounting hole (9) is a special-shaped swing through hole, the push-pull rod (5-2) is an integral screw rod, the integral screw rod is located in the special-shaped swing through hole and matched with the special-shaped swing through hole, and the integral screw rod can swing in the special-shaped swing through hole.
8. An oscillating push-pull hob system according to claim 6, wherein: the mounting hole (9) is a vertical through hole, the push-pull rod (5-2) comprises an upper connecting rod (201), a middle connecting rod (202) and a lower screw rod (203), two ends of the middle connecting rod (202) are respectively hinged with the upper connecting rod (201) and the lower screw rod (203), and the upper connecting rod (201), the middle connecting rod (202) and the lower screw rod (203) are matched with the vertical through hole.
9. A method of changing knives of an oscillating push-pull hob system according to claim 4 or 7 or 8, characterized in that: the method comprises the following steps: s1: disassembling the cutter: the tool changing robot jacks up the swinging pressing block (501), the swinging pressing block (501) rotates around a hinge point, the swinging pressing block (501) is separated from a hob cutter shaft (6) and gives way for taking out the hob (3), and then the hob is taken out;
s2: tool installation: the novel hob is placed into the hob box, the hob shaft (6) is clamped in the fixture block (4), then the swing pressing block (501) rotates downwards around a hinged point under the action of the hob changing robot and is gradually close to the hob shaft (6) until the swing pressing block (501) presses the hob shaft (6), and the installation of the hob is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911053836.7A CN110617076A (en) | 2019-10-31 | 2019-10-31 | Swinging push-pull hob cutter system and cutter changing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911053836.7A CN110617076A (en) | 2019-10-31 | 2019-10-31 | Swinging push-pull hob cutter system and cutter changing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110617076A true CN110617076A (en) | 2019-12-27 |
Family
ID=68927171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911053836.7A Pending CN110617076A (en) | 2019-10-31 | 2019-10-31 | Swinging push-pull hob cutter system and cutter changing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110617076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111091747A (en) * | 2019-12-31 | 2020-05-01 | 西南交通大学 | TBM hobbing cutter multifunctional test bed |
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| CN202108515U (en) * | 2011-04-27 | 2012-01-11 | 山东天工岩土工程设备有限公司 | Locking mechanism for hob shaft |
| CN202250093U (en) * | 2011-09-13 | 2012-05-30 | 盾建重工制造有限公司 | Installing structure of shield machine shaft seat fixed type double-edged hob |
| CN106285707A (en) * | 2016-09-18 | 2017-01-04 | 中铁工程装备集团有限公司 | A kind of extension type limit hobboing cutter girff |
| CN109403996A (en) * | 2018-11-28 | 2019-03-01 | 中铁工程装备集团有限公司 | Based on four-bar mechanism can rapid changing knife New Kind of Hob tool apron |
| CN209324365U (en) * | 2018-11-28 | 2019-08-30 | 中铁工程装备集团有限公司 | It is a kind of based on electrichydraulic control can rapid changing knife New Kind of Hob tool apron |
-
2019
- 2019-10-31 CN CN201911053836.7A patent/CN110617076A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202108515U (en) * | 2011-04-27 | 2012-01-11 | 山东天工岩土工程设备有限公司 | Locking mechanism for hob shaft |
| CN202250093U (en) * | 2011-09-13 | 2012-05-30 | 盾建重工制造有限公司 | Installing structure of shield machine shaft seat fixed type double-edged hob |
| CN106285707A (en) * | 2016-09-18 | 2017-01-04 | 中铁工程装备集团有限公司 | A kind of extension type limit hobboing cutter girff |
| CN109403996A (en) * | 2018-11-28 | 2019-03-01 | 中铁工程装备集团有限公司 | Based on four-bar mechanism can rapid changing knife New Kind of Hob tool apron |
| CN209324365U (en) * | 2018-11-28 | 2019-08-30 | 中铁工程装备集团有限公司 | It is a kind of based on electrichydraulic control can rapid changing knife New Kind of Hob tool apron |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111091747A (en) * | 2019-12-31 | 2020-05-01 | 西南交通大学 | TBM hobbing cutter multifunctional test bed |
| CN111091747B (en) * | 2019-12-31 | 2023-11-03 | 西南交通大学 | TBM hob multifunctional test bed |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20191227 |