CN212389346U - Shield constructs quick-witted quarrying device - Google Patents
Shield constructs quick-witted quarrying device Download PDFInfo
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- CN212389346U CN212389346U CN202022352613.5U CN202022352613U CN212389346U CN 212389346 U CN212389346 U CN 212389346U CN 202022352613 U CN202022352613 U CN 202022352613U CN 212389346 U CN212389346 U CN 212389346U
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Abstract
The utility model provides a shield constructs quick-witted quarrying device, including the screening unit and the stone storage unit that are connected. Screening unit box is last to be provided with into thick liquid mouth, to arrange the thick liquid mouth, to keep away from the one end of advancing thick liquid mouth and be equipped with out the stone mouth, is equipped with the hobbing type screening transport mechanism who has the synchro-drive function in the box, and this mechanism can not only be greater than stone, the clay piece transport in screening aperture and advance the storage stone case, but also can be less than silt, stone, clay piece in screening aperture and discharge from arranging the thick liquid mouth. The stone storage unit comprises a stone mining channel, a stone storage box and a stone mining gate, and has the functions of storing and discharging large-particle-size slag stones. The stone mining device improves the screening efficiency of the slag stones to the maximum extent, ensures sufficient screening and realizes efficient stone mining; the stone storage space is increased to the maximum extent, and frequent shutdown and stone collection are avoided; the efficiency of sediment stone clearance is furthest improved, realizes the automatic function of clearing up of sediment stone.
Description
Technical Field
The utility model relates to a tunnel excavation construction technical field especially relates to a shield constructs quick-witted stone device of adopting.
Background
At present, the slurry balance tunneling machine is widely applied to tunnel construction of rivers crossing the river, crossing straits and water-rich strata due to the advantages of high working pressure, high control precision of tunnel face pressure, complex applicable strata and the like. During the construction process of the slurry-water balance tunneling machine, the slag stones cut by the cutter head enter the slag slurry circulation system after being mixed and stirred by slurry inlet slurry, and are conveyed out of the tunnel. In the process, the working capacity of the slurry circulating system is mainly determined by the deslagging capacity and the passing particle size of the slurry pump in the slurry circulating system. When the slurry balance tunneling machine tunnels in strata such as rich water sand pebbles with large rock content, large particle size and high hardness, the slurry discharge pipeline is blocked or pebbles in the air cushion bin and the slurry bin are discharged in a stagnation mode often because the pebbles cannot be crushed by the jaw crusher in the air cushion bin within the particle size range conveyed by the slurry pump in time. Once the slurry balance tunneling machine is in stagnant discharge, the slurry balance tunneling machine is forced to stop tunneling, a back flushing mode needs to be operated or stagnant discharge slag stones in an air cushion bin and a slurry bin need to be cleaned manually, and the tunneling capability of the slurry balance tunneling machine is severely limited. In addition, when the jaw crusher works continuously in severe environment and complex working conditions under high strength, the jaw crusher is easy to break down, the maintenance cost is high, and safety risks exist.
In order to solve the problems, the slag carrying capacity of a slag slurry circulation system is improved by means of increasing the throughput capacity of a slag slurry pump, increasing a quarrying box or an external crusher and the like according to the stratum conditions in the prior art. Among them, the addition of quarrying boxes is the most common technical means. At present, the existing quarrying boxes mainly comprise a rock falling box, a vertical grid type quarrying box, a horizontal grid type quarrying box, a stirring and screening type quarrying box and a drum screening type quarrying box.
The five kinds of quarrying boxes all have the following problems: firstly, the residue soil is not screened sufficiently, the screening efficiency is low, and the quarrying box is easy to block; secondly, the rock storage volume of the rock mining box is limited, the rock storage amount is small, the box is mined frequently, and the rock mining box is not suitable for the requirement of efficient slag discharge of the slurry balance heading machine.
Disclosure of Invention
To foretell technical problem, the utility model provides a shield constructs quick-witted quarrying device for solve prior art quarrying case screening inefficiency, shut down the frequent problem of quarrying in tunnel construction process.
In order to achieve the above purpose, the technical solution of the present invention is realized as follows:
the utility model provides a shield constructs quick-witted quarrying device, includes screening unit and storage stone unit, screening unit and storage stone unit connection, be equipped with the hobbing type screening transport mechanism who has the screening function on the screening unit. Hobbing formula screening transport mechanism with screening hole can not only carry the stone, the clay piece that are greater than screening hole aperture to store up in the stone unit and keep in the back unified transport out, reduces workman's clearance number of times, can also be less than the clay piece, stone, the silt screening of screening hole aperture and be convenient for discharge to screening unit lower part.
Furthermore, in order to better screen and convey the slag stones, the screening unit comprises a screening box, the upper part of the screening box is provided with a slurry inlet, the lower part of the screening box is provided with a slurry outlet, the hobbing type screening conveying mechanism is positioned on the screening box between the slurry inlet and the slurry outlet, and the hobbing type screening conveying mechanism is provided with screening holes for screening the slag stones; and a stone outlet is formed in one end, far away from the pulp inlet, of the screening box and corresponds to the outlet end of the hobbing type screening conveying mechanism.
Further, in order to store the slag stones in the stone storage box, the stone storage unit is a stone storage box, a stone mining channel communicated with the stone outlet is formed in the stone storage box, and a stone mining gate is arranged at the outlet end of the stone storage box.
Furthermore, in order to improve the screening effect, the roller-type screening conveying mechanism comprises a plurality of conveying shaft assemblies arranged in parallel and a driving assembly for driving the conveying shaft assemblies to rotate, the conveying shaft assemblies are rotatably connected to the screening box, the driving assembly is connected to the outer side of the screening box, and a screening hole is formed between every two adjacent conveying shaft assemblies; the conveying shaft assemblies respectively comprise rotating shafts, the rotating shafts are rotatably connected to the screening units, a plurality of hobbing gears are arranged on the rotating shafts, and the hobbing gears are parallel to and fixed on the rotating shafts at intervals; the hobbing on two adjacent rotating shafts is matched.
Furthermore, in order to protect the rotating shaft and set the screening holes with proper sizes, a plurality of sleeves are further sleeved on the rotating shaft and are positioned between two adjacent hobbing teeth on the same rotating shaft.
Further, in order to make the hobbing better transmit the stone, the hobbing is triangular hobbing or four-sided hobbing
The side of the triangular hobbing, the side of the quadrangular hobbing or the side of the pentagonal hobbing are arc sides, and the adjacent arc sides are in smooth transition.
The utility model has the advantages that: the utility model has the advantages that the stone storage unit is arranged, the stone storage space is increased to the maximum extent, the sieved large-particle-size slag stones can be stored in the stone storage unit and then transported out in a unified way, the cleaning times of workers are reduced, and the operation intensity of the workers is reduced; the hobbing type screening conveying mechanism with the screening holes achieves the screening function, not only can convey stones and clay blocks larger than the screening hole diameter into the stone storage box, but also can screen clay blocks, stones and silt smaller than the screening hole diameter to the lower part of the screening box for discharging, and the hobbing type screening conveying mechanism is not easy to block the screening holes in the hobbing type screening conveying mechanism in the continuous operation process; the synchronous rotation of the upper rotating shaft of the hobbing type screening and conveying mechanism plays roles in conveying and screening at the same time, and the screening efficiency of the slag and stone slurry is improved to the maximum extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
figure 2 is a side view of the screening unit of the present invention;
figure 3 is a top view of the screening unit of the present invention.
In the figure: 1-slurry inlet, 2-upper box body, 3-screening box, 4-quarrying gate, 5-sleeve, 6-rotating shaft, 7-stone outlet, 8-slurry outlet, 9-slag chute, 10-slag chute, 11-side slag chute, 12-middle box body, 13-hobbing, 14-bearing seat, 15-quarrying channel, 16-driving motor, 17-odd shaft, 18-even shaft, 19-screening hole and 20-lower box body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1~ 3, a shield constructs quick-witted quarrying device, including screening unit and stone storage unit, be equipped with into thick liquid mouth 1, arrange thick liquid mouth 8 and go out stone mouth 7 on the screening unit, be equipped with the hobbing type screening transport mechanism who has the screening function in the screening unit, be equipped with the screening hole on the hobbing type screening transport mechanism, hobbing type screening transport mechanism is located the entering thick liquid mouth 1 and the play stone mouth 7 of screening unit between, the play stone mouth 7 and the stone storage unit intercommunication of screening unit. In the construction process of the slurry-water balance tunneling machine, the slag stones cut by the cutter head are mixed and stirred by slurry inlet slurry, when the slag slurry passes through the device, the hobbing type screening conveying mechanism screens the slag slurry in the process of conveying the slag slurry entering the screening unit from the slurry inlet 1 to the stone outlet 7, and the slag stones and clay blocks with the sizes larger than the screening apertures are conveyed by the hobbing type screening conveying mechanism to enter the stone storage unit for temporary storage and convenient uniform transportation out, so that the cleaning frequency of workers is reduced, and the operation intensity of the workers is reduced; the stones, clay blocks and silt which are smaller than the screening aperture fall into the lower part of the hobbing type screening conveying mechanism after being screened by the hobbing type screening conveying mechanism, and are discharged through the slurry discharge port 8 by virtue of the suction force of the slurry pump. Above-mentioned gear hobbing formula screening transport mechanism has improved sediment stone screening efficiency, ensures that the screening is abundant, realizes high-efficient quarrying function to the device does not have the blind area and carries the sediment stone, has avoided the sediment stone to pile up in the device.
Further, the screening unit comprises a screening box, the screening box comprises an upper box body 2, a middle box body 12 and a lower box body 20, the upper box body 2 is provided with a slurry inlet 1, one end of the upper box body 2 far away from the slurry inlet 1 is provided with a stone outlet 7, the lower box body 20 is provided with a slurry outlet 8, in the embodiment, the slurry inlet 1 is arranged at one end of the upper box body 2, the stone outlet 7 is arranged at one end of the upper box body 2 far away from the slurry inlet 1, the slurry outlet 8 is arranged at one end of the lower box body 20, the hobbing type screening conveying mechanism is arranged on the middle box body 2 between the slurry inlet 1 and the slurry outlet 8, in the embodiment, the hobbing type screening conveying mechanism is horizontally arranged inside the middle box body 12, the conveying direction of the hobbing type screening conveying mechanism extends from one end of the middle box body 12 close to the slurry inlet 1 of the upper box body 2 to one end close to the stone outlet 7, in other embodiments, the hobbing type screening conveying mechanism can be slightly obliquely arranged in the middle box body 12 downwards along the conveying direction, or the hobbing type screening and conveying mechanism can also be arranged in the middle box body 12 in a stepped mode; the hobbing type screening and conveying mechanism is provided with screening holes 19 for screening the slag stones, and the screening holes 19 are set to be proper in size according to the condition of a construction site and used for screening stones and clay blocks in the slag slurry; the stone outlet 7 corresponds to the outlet end of the hobbing type screening conveying mechanism, and the stone outlet 7 is located on one side, close to the tail end of the hobbing type screening conveying mechanism, of the upper box body 2. In the process of conveying the slurry by the hobbing type screening conveying mechanism, clay blocks, stones and silt smaller than the aperture of the screening holes 19 fall into the lower box body 20 and are discharged through the slurry discharge port 8, and the hobbing type screening conveying mechanism is not in a static state in the continuous operation process, so the screening holes 19 on the hobbing type screening conveying mechanism are not easy to block; the stones and clay blocks with the diameter larger than the diameter of the screening hole 19 enter the stone storage unit through the stone outlet 7 under the continuous transmission action of the hobbing type screening and conveying mechanism. The quarrying device is simple in structure, not easy to block, low in failure rate and capable of correspondingly reducing the times of shutdown cleaning.
Further, as shown in fig. 1, the stone storage unit is a stone storage box 3, the stone storage box 3 can increase the stone storage space to the maximum extent, frequent stopping and stone mining are avoided, a stone mining channel 15 is arranged on the stone storage box 3, the stone mining channel 15 is communicated with a stone outlet 7, a stone mining gate 4 is arranged at the outlet end of the stone storage box 3, large-particle-size slag stones after being screened pass through the stone mining channel to be stored in the stone storage box, the slag stone cleaning efficiency is improved to the maximum extent, and after the stone storage box is full, the stone mining gate 4 on the stone storage box is opened, so that the slag stones can fall into a secondary stone storage box or a conveying belt and are conveyed out of a hole. And closing the quarrying gate after the slag stones are discharged, and continuing to quarrying in the next round.
Further, as shown in fig. 3, the hobbing type screening transport mechanism includes a plurality of transfer shaft subassembly and drive assembly, a plurality of transfer shaft subassembly all rotates to be connected on the well box 12 of screening unit, and transfer shaft subassembly parallel arrangement, a plurality of transfer shaft subassembly forms continuous incessant hobbing type screening transport mechanism, it is gapped between two adjacent transfer shaft subassemblies, this clearance forms screening hole 19, drive assembly's stiff end is fixed in the well box 12 outside, drive assembly's output and transfer shaft subassembly are connected and are used for driving transfer assembly continuous operation, the sediment stone and the clay piece that will be greater than screening hole 19 aperture convey to stone outlet 7, transfer assembly continuous operation is convenient for make the silt that is less than screening hole 19 aperture, the clay piece, the stone falls to lower box 20 in, rely on sediment stuff pump suction to discharge through mud outlet 8. The hobbing type screening and conveying mechanism improves the slag stone screening efficiency to the maximum extent, ensures sufficient screening and realizes a high-efficiency stone mining function.
Further, as shown in fig. 1 and 2, the conveying shaft assemblies all comprise rotating shafts 6, the rotating shafts 6 are rotatably connected to the side walls of the middle box bodies 12 of the screening units through bearing seats 14, the conveying shaft assemblies are driven to integrally rotate through the rotation of the rotating shafts 6, the effect of conveying the slag stones and the clay blocks with the apertures larger than the apertures 19 of the screening holes is achieved, the clay blocks, the stones and the silt with the apertures smaller than the apertures 19 of the screening holes fall from gaps of the conveying shaft assemblies, and the slag stone screening efficiency is improved to the maximum extent; meanwhile, a plurality of hobbing teeth 13 are arranged on the rotating shaft 6, the hobbing teeth 13 are fixed on the rotating shaft 6 in parallel at intervals, the hobbing teeth 13 on each rotating shaft 6 rotate synchronously, and the hobbing teeth 13 play a role in stirring slag stones and clay blocks, so that the slag stones can be screened more conveniently; hobbing 13 that corresponds the position on two adjacent pivots 6 cooperatees all the time at the rotation in-process for adjacent conveying shaft subassembly cooperation is inseparable, and hobbing 13 still plays the effect of conveying the stone, ensures that the transmission of major diameter stone is smooth and easy.
Further, as shown in fig. 3, still the cover is equipped with a plurality of sleeves 5 on the pivot 6, and sleeve 5 is located between two adjacent hobbing teeth 13 on same pivot 6, and, the position that lies in the clearance between hobbing teeth 13 and the well box 12 on pivot 6 also overlaps and is equipped with sleeve 5, sleeve 5 plays the effect of protection pivot 6, still does not hinder the stirring effect of hobbing teeth 13 to the ballast, there is the clearance between the sleeve 5 of corresponding position on the adjacent pivot 6, this clearance is screening hole 19, do benefit to screening ballast, be convenient for change the size of screening hole 19 through changing the length and the thickness of sleeve 5.
Further, as shown in fig. 3, the rotating shaft 6 includes an odd shaft 17 and an even shaft 18, and the hobbing teeth 13 on the odd shaft 17 and the even shaft 18 are always matched during the rotation process, so as to facilitate smooth transmission of stones.
Further, as shown in fig. 1, the hobbing teeth 13 are all multi-arc-edge hobbing teeth, the edges of the hobbing teeth are all arc-shaped edges, and the adjacent edges are in smooth transition, so that the hobbing teeth 13 on the odd-numbered shaft 17 can be matched with the hobbing teeth 13 on the corresponding positions on the even-numbered shaft 18 all the time in the rotating process, each hobbing tooth can be a single integrally formed hobbing tooth, or can be formed by coaxially and tightly fixing a plurality of hobbing single sheets with the same shape, and the hobbing teeth on the adjacent rotating shafts can be ensured to be matched all the time in the rotating process; in the embodiment, the multi-arc-edge hobbing is triangular arc-edge hobbing, and when the triangular arc-edge hobbing passes through a 120-degree stroke, 30-90 degrees of the triangular arc-edge hobbing is a stone storage period, and the rest of the strokes are stone throwing periods, so that continuous and efficient transfer of slag stones is facilitated.
Further, as shown in fig. 3, the driving assembly includes a driving unit 16, and the shaft end of the rotating shaft 6 is connected to the driving unit 16, and the driving unit is an electric motor or a hydraulic motor. In this embodiment, the driving unit 16 is a hydraulic motor and is disposed outside the middle box 12, one of the rotating shafts 6 is connected to the driving unit 16, and the rotating shafts 6 are connected to a sprocket wheel via a chain, so as to ensure synchronous transmission and continuous transmission of slag stones by the conveying shaft assembly. In other embodiments, the driving assembly may be a driving unit connected to the rotating shaft through a gear transmission, or a belt transmission, both of which are known in the art.
Further, as shown in fig. 1 and 2, a slag chute 9 is arranged in the screening unit, specifically, a slag chute 10 is obliquely fixed on the inner side of the lower box 20, the upper end of the slag chute 10 is fixed on the inner wall of the rear end of the lower box 20 below the tail end of the hobbing type screening conveying mechanism, the lower end of the slag chute 10 is obliquely fixed to the slurry outlet 8, two side slag chutes 11 are further arranged on two sides of the slag chute 10, the upper ends of the two side slag chutes 11 are fixed on the side walls of the lower box 20 below the two sides of the hobbing type screening conveying mechanism, the lower ends of the two side slag chutes 11 are also obliquely fixed to the slurry outlet 8, the slag chute 10, the two side slag chutes 11 and the inner wall of the front end of the lower box 20 form a slag chute 9, so that the upper end opening of the slag chute 9 is located below the hobbing type screening conveying mechanism, and the lower end outlet of the slag chute 9 is communicated with the slurry outlet 8, thereby facilitating the separation of the silt and the clay blocks, The stone is discharged from the slurry outlet 8 after being collected.
Embodiment 2, which is different from embodiment 1 in that the slurry outlet is provided at the bottom of the lower case, and the lower case is funnel-shaped as a whole.
Embodiment 3, which differs from embodiment 1 in that the sleeve 5 is omitted and the gaps between adjacent shafts 6 and between adjacent gear rollers on each shaft 6 form screening holes.
Embodiment 4 differs from embodiment 1 in that the hobbing teeth 13 are all oval hobbing teeth, and the hobbing teeth 13 at corresponding positions on adjacent rotating shafts 6 can be always in clearance fit in the rotating process.
Embodiment 5 is different from embodiment 1 in that the hobbing teeth 13 are all quadrangular arc-edge hobbing teeth, the edges of the quadrangular arc-edge hobbing teeth are all arc-shaped edges, and the adjacent edges of the quadrangular arc-edge hobbing teeth are in smooth transition connection, so that the hobbing teeth 13 at the corresponding positions on the adjacent rotating shafts 6 can be always in clearance fit in the rotating process.
Embodiment 6, it is different from embodiment 1 in that, hobbing 13 is pentagonal arc-edge hobbing, the edges of this pentagonal arc-edge hobbing are arc edges, and the adjacent edges of pentagonal arc-edge hobbing are in smooth transition connection, so that hobbing 13 at the corresponding position on adjacent rotating shaft 6 can always be in clearance fit during the rotation process.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The shield machine stone mining device comprises a screening unit and is characterized by further comprising a stone storage unit, wherein the stone storage unit is connected with the screening unit; and the screening unit is provided with a hobbing type screening transmission mechanism with a screening function.
2. The shield tunneling machine quarrying device according to claim 1, wherein the screening unit comprises a screening box, a slurry inlet (1) is arranged at the upper part of the screening box, a slurry outlet (8) is arranged at the lower part of the screening box, the hobbing type screening conveying mechanism is positioned on the screening box between the slurry inlet (1) and the slurry outlet (8), and screening holes (19) for screening the slag stones are arranged on the hobbing type screening conveying mechanism; one end of the screening box, which is far away from the pulp inlet (1), is provided with a stone outlet (7), and the stone outlet (7) corresponds to the outlet end of the hobbing type screening conveying mechanism.
3. The shield tunneling machine stone extraction device according to claim 2, wherein the stone storage unit is a stone storage box (3), a stone extraction passage (15) communicated with the stone outlet (7) is arranged on the stone storage box (3), and a stone extraction gate (4) is arranged at the outlet end of the stone storage box (3).
4. The shield tunneling machine stone mining device according to claim 2 or 3, wherein the hobbing type screening conveying mechanism comprises a plurality of conveying shaft assemblies arranged in parallel and a driving assembly for driving the conveying shaft assemblies to rotate, the conveying shaft assemblies are rotatably connected to the screening box, the driving assembly is connected to the outer side of the screening box, and screening holes (19) are formed between every two adjacent conveying shaft assemblies; the conveying shaft assemblies respectively comprise rotating shafts (6), the rotating shafts (6) are rotatably connected to the screening box, a plurality of hobbing teeth (13) are arranged on the rotating shafts (6), and the hobbing teeth (13) are fixed on the rotating shafts (6) in parallel at intervals; the hobbing (13) on two adjacent rotating shafts (6) are matched.
5. The shield tunneling machine quarrying device of claim 4, wherein the rotating shaft (6) is further sleeved with a plurality of sleeves (5), and the sleeves (5) are located between two adjacent hobbing teeth (13) on the same rotating shaft (6).
6. The shield tunneling machine quarrying device according to claim 4, wherein the hobbing (13) is triangular hobbing, quadrangular hobbing, pentagonal hobbing or elliptical hobbing, the sides of the triangular hobbing, quadrangular hobbing or pentagonal hobbing are all arc sides, and the adjacent arc sides are in smooth transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022352613.5U CN212389346U (en) | 2020-10-21 | 2020-10-21 | Shield constructs quick-witted quarrying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022352613.5U CN212389346U (en) | 2020-10-21 | 2020-10-21 | Shield constructs quick-witted quarrying device |
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| CN212389346U true CN212389346U (en) | 2021-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065430A (en) * | 2020-10-21 | 2020-12-11 | 中铁工程装备集团有限公司 | Shield tunneling machine quarrying device and working method |
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2020
- 2020-10-21 CN CN202022352613.5U patent/CN212389346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065430A (en) * | 2020-10-21 | 2020-12-11 | 中铁工程装备集团有限公司 | Shield tunneling machine quarrying device and working method |
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