CN114673513A - Control method for cutter inserting baffle of open pipe pushing jack - Google Patents
Control method for cutter inserting baffle of open pipe pushing jack Download PDFInfo
- Publication number
- CN114673513A CN114673513A CN202210393352.2A CN202210393352A CN114673513A CN 114673513 A CN114673513 A CN 114673513A CN 202210393352 A CN202210393352 A CN 202210393352A CN 114673513 A CN114673513 A CN 114673513A
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- Prior art keywords
- slotting
- slotting tool
- baffle
- oil cylinder
- cutter
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Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000009471 action Effects 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 14
- 238000005303 weighing Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 7
- 238000009412 basement excavation Methods 0.000 description 11
- 239000011435 rock Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21D9/0692—Cutter drive shields
-
- 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
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
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 relates to the field of push bench, in particular to a control method of a slotting tool baffle of an open push bench, which comprises a shield body, slotting tools, baffles, a slotting tool oil cylinder, a slag car and a slag car weighing system, wherein a controller is arranged on the shield body, the upper half part of the shield body is respectively provided with at least 10 groups of slotting tools and 8 groups of baffles, each slotting tool comprises a slotting tool main body and a slotting tool cutter, and the slotting tool cutters are welded on the slotting tool main bodies; the actions of the slotting tool and the baffle are combined to form an organic whole, and linkage control is performed; by designing the slotting tool protection system and the baffle protection system, the mechanical structure and the hydraulic system of the slotting tool and the baffle can be protected when the slotting tool and the baffle act and are clamped.
Description
Technical Field
The invention relates to the field of push bench, in particular to a control method of a slotting cutter baffle of an open push bench.
Background
The open pipe jacking machine is a product of mutual fusion of a pipe jacking method and a subsurface excavation method, a main drive and a cutter head are not configured in a front shield of a host system, and the stratum is flexibly excavated under the support of a front shield body by means of equipment such as a mechanical bucket or a cantilever excavator.
The actions of the slotting tool and the baffle are controlled by oil cylinders, the current scheme still adopts manual single control, each action oil cylinder is provided with a manual reversing valve, the digging condition is judged by manpower, and then the actions of the slotting tool and the baffle are controlled manually. The control method is relatively backward, can not be interlocked with other actions, and has the defects of low efficiency, artificial misjudgment and the like
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a control method of a slotting tool baffle of an open push bench.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a control method of a slotting tool baffle of an open pipe jacking machine comprises a shield body, slotting tools, baffles, slotting tool oil cylinders, a slag car and a slag car weighing system, wherein a controller is arranged on the shield body, at least groups of slotting tools and groups of baffles are respectively arranged on the upper half part of the shield body, each slotting tool comprises a slotting tool main body and a slotting tool, the slotting tool is welded on the slotting tool main body, each slotting tool oil cylinder comprises a first slotting tool oil cylinder and a second slotting tool oil cylinder, one end of each first slotting tool oil cylinder is fixed on the shield body through a first lug seat, each first slotting tool oil cylinder is connected with the corresponding first lug seat through a first pin shaft, the other end of each first slotting tool oil cylinder is connected with the corresponding slotting tool main body through a second pin shaft, the front part of each slotting tool main body is connected with the corresponding baffle through a third pin shaft, and the middle part of the baffle is connected with one end of the corresponding second slotting tool oil cylinder through a fourth pin shaft; the other end of the second slotting tool oil cylinder is connected with a second lug seat through a fifth pin shaft, and the second lug seat is fixed at one end of the bottom of the slotting tool main body.
Furthermore, the invention is improved in that the slotting tool comprises 5 groups of left slotting tools and 5 groups of right slotting tools, one group of the left slotting tools and the right slotting tools is independently installed on the shield body, and the other slotting tools and the baffles are installed on the shield body in a one-to-one correspondence manner.
Further, the invention is improved by comprising the following steps:
firstly, actively propelling, and excavating an area by matching a mechanical bucket or a cantilever excavator with a slotting tool and a baffle;
and step two, weighing the muck, conveying the excavated muck to a muck car through a muck conveying device on the shield body, and detecting the current weight of the muck in real time through a muck car weighing system.
Furthermore, the controller comprises a slotting tool protection system and a baffle protection system, wherein the slotting tool protection system is used for leading the current working pressure of the slotting tool system to be larger than the maximum working pressure set by the first slotting tool oil cylinder control hydraulic circuit in the slotting tool telescoping process if a harder stratum is clamped in the extension process of the slotting tool, and after the condition is triggered, the extension action of the slotting tool is stopped, and the slotting tool retracts through the action of a reversing valve of the first slotting tool oil cylinder so as to protect a slotting tool movement mechanism.
Furthermore, the invention has the improvement that the baffle protection system is used for automatically entering the baffle action process when the slotting tool completes three times of extension and twice retraction; if the baffle is clamped by a hard stratum in the opening process, the current working pressure of the baffle system is larger than the set maximum working pressure of the second slotting tool oil cylinder control hydraulic circuit, after the condition is triggered, the opening action of the baffle stops, the reversing valve of the second slotting tool oil cylinder acts, and the baffle retracts to protect the baffle movement mechanism.
Further, the invention improves that when the actual weight of the slag car is larger than or equal to the theoretical weight of the total slag soil in the excavation area, the area is indicated to finish excavation.
(III) advantageous effects
Compared with the prior art, the invention provides a method for controlling a slotting tool baffle of an open pipe jacking machine, which has the following beneficial effects:
the invention realizes the propelling action by the action of the slotting tool and the baffle and the tank body of the shield body to form a closed-loop feedback automatic control flow; the actions of the slotting tool and the baffle are combined to form an organic whole, and linkage control is performed; by designing the slotting tool protection system and the baffle protection system, the mechanical structure and the hydraulic system of the slotting tool and the baffle can be protected when the slotting tool and the baffle act and are clamped.
Drawings
FIG. 1 is a schematic view of a knife holder baffle according to the present invention;
FIG. 2 is a schematic view of the combination of the slotting tool and the baffle of the present invention;
FIG. 3 is an extended view of the slotting tool of the present invention;
FIG. 4 is a schematic view of the baffle plate of the present invention being opened;
FIG. 5 is a schematic view of the invention with the slotting tool extended and the fence extended;
FIG. 6 is a schematic control flow diagram according to the present invention;
in the figure: 1. a slotting cutter; 2. a slotting tool main body; 3. a first slotting tool oil cylinder; 4. a second slotting tool oil cylinder; 5. a baffle plate; 6. a first ear mount; 7. a second ear mount; 8. a first pin shaft; 9. a second pin shaft; 10. a third pin shaft; 11. a fourth pin shaft; 12. a fifth pin shaft;
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. 1-6, the method for controlling a slotting tool baffle of an open push bench of the invention comprises a shield body, a slotting tool, a baffle 5, a slotting tool oil cylinder, a slag car and a slag car weighing system, wherein a controller is arranged on the shield body, at least 10 groups of slotting tools and 8 groups of baffles 5 are respectively arranged on the upper half part of the shield body, the slotting tool comprises a slotting tool main body 2 and a slotting tool 1, the slotting tool 1 is welded on the slotting tool main body 2, the slotting tool oil cylinder comprises a first slotting tool oil cylinder 3 and a second slotting tool oil cylinder 4, one end of the first slotting tool oil cylinder 3 is fixed on the shield body through a first lug seat 6, the first slotting tool oil cylinder 3 is connected with the first lug seat 6 through a first pin shaft 8, the other end of the first slotting tool oil cylinder 3 is connected with the slotting tool main body 2 through a second pin shaft 9, the front part of the slotting tool main body 2 is connected with the baffle 5 through a third pin shaft 10, the middle part of the baffle 5 is connected with one end of the second slotting tool oil cylinder 4 through a fourth pin shaft 11; the other end of the second slotting tool oil cylinder 4 is connected with the second lug seat 7 through a fifth pin shaft 12, and the second lug seat 7 is fixed at one end of the bottom of the slotting tool main body 2.
In this embodiment, the slotting tools include 5 groups of left slotting tools and 5 groups of right slotting tools, one of the left slotting tools and the right slotting tools is independently installed on the shield body, and the other slotting tools and the baffles 5 are installed on the shield body in a one-to-one correspondence manner.
In this embodiment, the method includes the following steps:
firstly, actively propelling, and excavating an area by matching a mechanical bucket or a cantilever excavator with a slotting tool and a baffle 5;
and step two, weighing the muck, conveying the excavated muck to a muck car through a muck conveying device on the shield body, and detecting the current weight of the muck in real time through a muck car weighing system.
The mechanical bucket or the cantilever excavator is independent and is not related to a controller of the shield body, the shield body excavates the upper half part of the soil body section firstly through a slotting tool matched with the mechanical bucket or the cantilever excavator and a baffle 5, the high part of the edge of the soil body section depends on the slotting tool arranged on the edge contour line of the upper part of the shield body to carry out trimming excavation on the excavation contour, and when the lower half part of the soil body is excavated, the baffle 5 arranged on the shield body is opened to temporarily support the excavation section of the upper half part for ensuring safety.
In this embodiment, the controller includes slotting tool protection system and baffle protection system, slotting tool protection system is arranged in the flexible flow of slotting tool, if the slotting tool has harder stratum to block at the in-process that stretches out, then can lead to the current operating pressure of slotting tool system to be greater than the maximum operating pressure of first slotting tool hydro-cylinder 3 control hydraulic circuit settlement, after triggering this condition, the slotting tool stretches out the action and stops, and make the slotting tool withdrawal through the switching-over valve action of first slotting tool hydro-cylinder 3, with protection slotting tool motion, and the warning is reminded, after the artifical hard rock that solves the jam, can carry out manual reset, control procedure gets into the flexible flow of slotting tool again.
In the embodiment, the baffle protection system is used for automatically entering the action flow of the baffle 5 when the slotting tool is extended for three times and retracted for two times; if the baffle 5 is clamped by a hard stratum in the opening process, the current working pressure of a system of the baffle 5 is larger than the set maximum working pressure of a hydraulic circuit controlled by the second slotting tool oil cylinder 4, after the condition is triggered, the opening action of the baffle 5 is stopped, a reversing valve of the second slotting tool oil cylinder 4 acts, and the baffle 5 retracts to protect a moving mechanism of the baffle 5 and give an alarm for reminding; after the hard rock clamped is manually solved, the manual reset can be carried out, the baffle 5 is opened again, and the slotting tool is extended for three times and retracted for two times so as to dig the outline dregs completely.
In this embodiment, when the actual weight of the slag car is greater than or equal to the theoretical weight of the total slag soil in the excavation region, it is described that the excavation is completed in the region.
In conclusion, in the method for controlling the slotting tool baffle of the open pipe jacking machine, when in use, the slotting tool main body 2 is welded by steel plates, the slotting tool can slide back and forth in a corresponding groove of a shield body, the shield body digs the upper half part of the section of a soil body firstly through a mechanical bucket or a cantilever excavator matched with the slotting tool and a baffle 5, the high part of the edge of the section of the soil body depends on the slotting tool arranged on the edge contour line of the upper part of the shield body to carry out trimming excavation on the excavation profile, when the lower half part of the soil body is excavated, the baffle 5 arranged on the shield body is opened to temporarily support the excavation section of the upper half part, in the slotting tool telescoping process, if the slotting tool is clamped by a hard stratum in the extending process, the current working pressure of a slotting tool system is larger than the maximum working pressure set by a hydraulic circuit controlled by a first slotting tool oil cylinder 3, and after the condition is triggered, the extending action of the slotting tool is stopped, the slotting tool retracts through the action of a reversing valve of the first slotting tool oil cylinder 3 to protect a slotting tool movement mechanism, an alarm is given, manual reset can be carried out after stuck hard rock is manually solved, a control program enters the slotting tool retracting flow again, and when the slotting tool is extended for three times and retracted for two times, the system automatically enters the action flow of the baffle 5; if the baffle 5 is clamped by a hard stratum in the opening process, the current working pressure of the system of the baffle 5 is larger than the set maximum working pressure of the hydraulic circuit controlled by the second slotting tool oil cylinder 4, after the condition is triggered, the opening action of the baffle 5 is stopped, the reversing valve acts, and the baffle 5 retracts to protect the movement mechanism of the baffle 5 and give an alarm for reminding; after the hard rock clamped is manually solved, the manual reset can be carried out, the baffle 5 is opened again, and the slotting tool is extended for three times and retracted for two times so as to dig the outline dregs completely.
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. A control method of a slotting tool baffle of an open pipe pushing jack is characterized by comprising a shield body, a slotting tool, a baffle (5), slotting tool oil cylinders, a slag car and a slag car weighing system, wherein a controller is arranged on the shield body, the upper half part of the shield body is respectively provided with at least 10 groups of slotting tools and 8 groups of baffles (5), the slotting tool comprises a slotting tool main body (2) and a slotting tool cutter (1), the slotting tool cutter (1) is welded on the slotting tool main body (2), the slotting tool oil cylinder comprises a first slotting tool oil cylinder (3) and a second slotting tool oil cylinder (4), one end of the first slotting tool oil cylinder (3) is fixed on the slotting tool main body through a first lug seat (6), the first slotting tool oil cylinder (3) is connected with the first lug seat (6) through a first pin shaft (8), the other end of the first slotting tool oil cylinder (3) is connected with the slotting tool main body (2) through a second pin shaft (9), the front part of the slotting tool main body (2) is connected with a baffle (5) through a third pin shaft (10), and the middle part of the baffle (5) is connected with one end of a second slotting tool oil cylinder (4) through a fourth pin shaft (11); the other end of the second slotting tool oil cylinder (4) is connected with a second lug seat (7) through a fifth pin shaft (12), and the second lug seat (7) is fixed at one end of the bottom of the slotting tool main body (2).
2. The method for controlling the slotting cutter baffle of the open push bench according to claim 1, wherein the slotting cutters comprise 5 groups of left slotting cutters and 5 groups of right slotting cutters, one group of the left slotting cutters and the right slotting cutters is independently installed on the shield body, and the other slotting cutters and the baffles (5) are installed on the shield body in a one-to-one correspondence manner.
3. The method for controlling the slotting cutter baffle of the open push bench according to claim 4, which is characterized by comprising the following steps of:
firstly, actively propelling, and excavating an area by matching a mechanical bucket or a cantilever excavator with a slotting tool and a baffle (5);
and step two, weighing the muck, conveying the excavated muck to a muck truck through a muck conveying device on the shield body, and detecting the current weight of the muck in real time through a muck truck weighing system.
4. The method for controlling the slotting cutter baffle of the open pipe pushing jack according to claim 2, wherein the controller comprises a slotting cutter protection system and a baffle protection system, the slotting cutter protection system is used in a slotting cutter telescoping process, if a harder stratum is clamped in a slotting cutter extending process, the current working pressure of the slotting cutter system is larger than the set maximum working pressure of a hydraulic circuit controlled by the first slotting cutter oil cylinder (3), after the condition is triggered, the slotting cutter extending action is stopped, and the slotting cutter is retracted through the action of a reversing valve of the first slotting cutter oil cylinder (3), so that a slotting cutter moving mechanism is protected.
5. The control method of the slotting tool baffle of the open push bench according to claim 3, wherein the baffle protection system is used for automatically entering the action process of the baffle (5) when the slotting tool is extended for three times and retracted for two times; if the baffle (5) is clamped by a hard stratum in the opening process, the current working pressure of the baffle (5) system is larger than the set maximum working pressure of the hydraulic circuit controlled by the second slotting tool oil cylinder (4), after the condition is triggered, the opening action of the baffle (5) is stopped, the reversing valve of the second slotting tool oil cylinder (4) acts, and the baffle (5) retracts to protect the baffle (5) movement mechanism.
6. The method for controlling the slotting cutter baffle of the open push bench according to claim 5, wherein when the actual weight of the slag car is greater than or equal to the theoretical weight of the total slag soil in the excavated area, the area is indicated to be excavated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210393352.2A CN114673513A (en) | 2022-04-14 | 2022-04-14 | Control method for cutter inserting baffle of open pipe pushing jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210393352.2A CN114673513A (en) | 2022-04-14 | 2022-04-14 | Control method for cutter inserting baffle of open pipe pushing jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114673513A true CN114673513A (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210393352.2A Pending CN114673513A (en) | 2022-04-14 | 2022-04-14 | Control method for cutter inserting baffle of open pipe pushing jack |
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| CN (1) | CN114673513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146220A (en) * | 2023-01-04 | 2023-05-23 | 中铁二局集团有限公司 | Construction method for large-section rectangular pipe pushing bench |
-
2022
- 2022-04-14 CN CN202210393352.2A patent/CN114673513A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146220A (en) * | 2023-01-04 | 2023-05-23 | 中铁二局集团有限公司 | Construction method for large-section rectangular pipe pushing bench |
| CN116146220B (en) * | 2023-01-04 | 2024-03-12 | 中铁二局集团有限公司 | Construction method for large-section rectangular pipe pushing bench |
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