CN219865019U - Stability-increasing and drag-reducing device of rock pipe jacking machine - Google Patents
Stability-increasing and drag-reducing device of rock pipe jacking machine Download PDFInfo
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- CN219865019U CN219865019U CN202321362961.8U CN202321362961U CN219865019U CN 219865019 U CN219865019 U CN 219865019U CN 202321362961 U CN202321362961 U CN 202321362961U CN 219865019 U CN219865019 U CN 219865019U
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- drag reduction
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- pipe
- stability
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- 239000011435 rock Substances 0.000 title claims abstract description 75
- 230000009467 reduction Effects 0.000 claims abstract description 60
- 239000004575 stone Substances 0.000 claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 230000003416 augmentation Effects 0.000 claims description 34
- 238000013016 damping Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 18
- 239000002893 slag Substances 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a stability and drag reduction device of a rock push bench, which comprises a push bench cutter head, a connecting bin and a stability and drag reduction bin, wherein the two axial sides of the connecting bin are respectively connected with the push bench cutter head and the stability and drag reduction bin, the top of the connecting bin along the vertical direction is higher than the top of the stability and drag reduction bin at a corresponding position, an opening is further formed in the top of one side of the stability and drag reduction bin, which is close to the connecting bin, a stone blocking plate inclining towards the direction of the connecting bin is further arranged at the top of the stability and drag reduction bin, and the stone blocking plate and the connecting bin are respectively positioned at the two axial sides of the opening. According to the scheme, the conditions of clamping and holding the rock slag can be reduced, the pipe jacking resistance is reduced, the self stability of the pipe jacking machine is improved, and the construction quality and efficiency are guaranteed.
Description
Technical Field
The utility model relates to the technical field of rock pipe jacking construction, in particular to a stability-increasing and drag-reducing device of a rock pipe jacking machine.
Background
Along with the continuous acceleration of urban construction, municipal pipeline construction is more and more frequent, in order to avoid excavating the buried pipe to the road, the pipe jacking machine is generally adopted for construction, pipe jacking construction, namely, the friction force between a pipeline and surrounding soil is overcome by means of jacking equipment in a sending pit, the pipeline is jacked into the soil according to the designed gradient, earthwork is carried away, after one section of pipe is jacked, a second section of pipe is jacked continuously until the pipe is pushed to a receiving pit through a soil layer, and the pipe jacking machine construction has the advantages of small excavation earthwork, high automation degree and the like.
In the pipe jacking construction of rock, the pipe pushing bench is generally 6 cm larger than the diameter of a pipe joint which is in a jacking mode, so that the purpose of reaming and reducing resistance is achieved, but in the pipe pushing bench construction process, the phenomenon that rock blocks cut by a pipe pushing bench head fall to the outer wall of a pipeline behind the head often occurs, slag is collected on the outer wall of the pipeline, the resistance of a rock slag clamping pipe, a pipe holding pipe and a pipe pushing pipe is increased, the slurry loss is serious, the problems of incapacity of effectively reducing resistance and the like are solved, and even pipe pushing failure is caused. In the pipe jacking construction process, when the rock is excavated hard, the overturning angle of the rock pipe jacking machine is overlarge, the deviation rectifying difficulty of the machine head can be increased by using the deviation rectifying oil cylinder, and a small amount of water in the rock pipe jacking machine after overturning can be immersed in an electrical system, so that the electrical system is invalid.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to solve the technical problems that: how to provide a rock push bench stability-increasing and drag-reducing device which can reduce the conditions of rock slag clamping and pipe holding, reduce push resistance at the same time, promote the stability of the push bench, and ensure the construction quality and efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a rock push bench increases steady damping device, includes push bench tool bit, connects storehouse and increases steady damping storehouse, connect the axial both sides in storehouse respectively with push bench tool bit with increase steady damping storehouse and connect, just connect the storehouse along the top of vertical direction be higher than corresponding position increase steady damping storehouse's top increase steady damping storehouse is close to connect the top of storehouse one side still is equipped with the trompil increase steady damping storehouse's top still be equipped with to connect the baffle plate of storehouse direction slope, baffle plate with connect the storehouse and be located respectively the axial both sides of trompil.
The working principle of the utility model is as follows: when the push bench of this scheme is in use, excavate rock through push bench aircraft nose, in push bench aircraft nose excavation process, the rock block through push bench aircraft nose cutting drops the outer wall of connecting the storehouse and removes to the direction in steady increase drag reduction storehouse, because the top in steady increase drag reduction storehouse is less than the top in connecting the storehouse, and be equipped with the trompil at the one side top that steady increase drag reduction storehouse is close to the connecting the storehouse, simultaneously under the effect of baffle plate, the rock block that removes along connecting the storehouse outer wall will further remove the trompil department in steady increase drag reduction storehouse, and drop in steady increase drag reduction storehouse through the trompil, just so greatly reduced the phenomenon that the rock block gathers at the pipeline outer wall, thereby reach the condition such as reduction rock sediment card pipe, hold pipe, reduce the top pipe resistance simultaneously, the rock block piles up in steady increase its anti-overturning moment in steady increase drag reduction storehouse, the difficult excavation place section can utilize, the cutter head of the connecting storehouse self stability, guarantee equipment safety and construction quality in the connecting the storehouse.
Preferably, the included angle between the stone baffle plate and the axial direction is theta, theta is more than or equal to 45 degrees and less than or equal to 75 degrees, and the top of the stone baffle plate in the vertical direction is flush with the top of the connecting bin in the vertical direction.
Like this, keep off slabstone and axial direction contained angle be θ,45 are ltoreq θ and are ltoreq 75, and keep off the top of slabstone along vertical direction and connect the storehouse along vertical direction's top flush, can make like this guarantee to keep off the blocking effect of slabstone to the rock block for the rock block can both enter into through the trompil basically and increase steady drag reduction storehouse.
Preferably, the included angle θ between the stone baffle plate and the axial direction is 60 °.
Thus, the above-mentioned angle of the stone blocking plate is blocked well.
Preferably, a guide filter screen is further arranged in the stability augmentation drag reduction bin, the guide filter screen is located below the opening, and the guide filter screen is obliquely downwards arranged along one side away from the connecting bin.
Therefore, the guide filter screen is arranged, so that the movement of the rock blocks entering the stability increasing and drag reducing bin through the opening holes can be guided, and the rock blocks move to corresponding positions according to a set route.
Preferably, a connecting piece is further arranged in the stability augmentation and drag reduction bin, the upper portion of the connecting piece is connected with the top of the stability augmentation and drag reduction bin, and the lower portion of the connecting piece is connected with one side, far away from the connecting bin, of the guide filter screen.
Like this, through setting up the connecting piece, can play fixed action to the direction filter screen, guarantee the stability of direction filter screen use.
Preferably, a ballast tank is further arranged in the stability augmentation and drag reduction bin, and the ballast tank is positioned below one side, far away from the connecting bin, of the guide filter screen.
In this way, by arranging the ballast tank and arranging the ballast tank below the guide filter screen far away from the connecting bin, the rock blocks entering the stability and resistance increasing bin through the holes can move into the ballast tank along the guide filter screen, so that the concentrated collection of the rock blocks is realized through the ballast tank, and the falling rock blocks can only be introduced into the ballast tank without leaking to other places except the ballast tank. Through setting up the ballast tank, can increase anti moment of turning over at difficult excavation district utilization inhaled rock block, improve self stability, guarantee the interior equipment safety of connecting the storehouse and push pipe construction quality.
Preferably, an air compressor is arranged on one side of the ballast tank, which is close to the connecting bin, an air inlet pipe and an air outlet pipe are connected to the air compressor, and an air inlet of the air inlet pipe is positioned below the guide filter screen.
Like this, through setting up air compressor to make the air inlet be located the below of direction filter screen, utilize the negative pressure that air inlet department produced to inhale more rock blocks in increasing steady drag reduction storehouse, increase the rock block quantity in upper portion baffle plate introduction ballast tank, further reduce push pipe resistance.
Preferably, a supporting piece is further arranged below the guide filter screen, and the air outlet pipe is arranged on the supporting piece.
Thus, the effect of supporting and installing the air outlet pipe is achieved through the supporting piece.
Preferably, a filter screen is further arranged at the air inlet of the air inlet pipe.
Thus, by arranging the filter screen at the air inlet, the air compressor fault caused by falling of the rock blocks into the air compressor can be avoided.
Preferably, the air outlet pipe comprises an air outlet main pipe and a plurality of air outlet branch pipes, a plurality of air outlets are formed in the air outlet main pipe, the air outlet branch pipes are connected to the air outlets in a one-to-one correspondence mode, and the air outlet branch pipes extend out of the stability-increasing and drag-reducing bin.
Therefore, the head of the pipe jacking machine is cut and falls to the position below the outer wall of the pipeline at the rear part of the head of the pipe jacking machine by utilizing the pressure of the air outlet pipe of the air compressor, and rock blocks are blown back to the head of the pipe jacking machine, so that resistance is effectively reduced; meanwhile, the weight of a ballast tank (introduced broken stone) is balanced when the tool bit of the push bench is easy to cut and crush by utilizing the air pressure of the air outlet pipe of the air compressor, so that the weight of equipment is reduced, and the forward resistance is reduced.
Drawings
FIG. 1 is a schematic diagram of a stability augmentation and drag reduction device of a rock push bench according to the present utility model;
fig. 2 is a partial cross-sectional view of a stability augmentation and drag reduction bin of the stability augmentation and drag reduction apparatus of the rock push bench of the present utility model.
Reference numerals illustrate: the pipe pushing bench comprises a pipe pushing bench tool bit 1, a connecting bin 2, a stability increasing and drag reducing bin 3, an opening 31, a stone baffle plate 32, a connecting piece 33, a guide filter screen 34, a ballast tank 35, an air compressor 36, an air outlet pipe 37, an air outlet main pipe 371, an air outlet branch pipe 372, a supporting piece 38 and an air inlet pipe 39.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.
The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Also, unless the context clearly indicates otherwise, singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "comprises," "comprising," or the like are intended to cover a feature, integer, step, operation, element, and/or component recited as being present in the element or article that "comprises" or "comprising" does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "up", "down", "left", "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
As shown in fig. 1 and fig. 2, a rock push bench stability augmentation and drag reduction device comprises a push bench cutter head 1, a connecting bin 2 and a stability augmentation and drag reduction bin 3, wherein two axial sides of the connecting bin 2 are respectively connected with the push bench cutter head 1 and the stability augmentation and drag reduction bin 3, the push bench cutter head 1 is used for excavating rock strata, the connecting bin 2 and the stability augmentation and drag reduction bin 3 are connected in a welding mode, the top of the connecting bin 2 in the vertical direction is higher than the top of the stability augmentation and drag reduction bin 3 at the corresponding position, an opening 31 is further formed in the top of one side of the stability augmentation and drag reduction bin 3, a stone blocking plate 32 inclined towards the direction of the connecting bin 2 is further arranged at the top of the stability augmentation and drag reduction bin 3, and the stone blocking plate 32 and the connecting bin 2 are respectively positioned at two axial sides of the opening 31.
The working principle of the utility model is as follows: when the push bench of this scheme is in use, excavate rock through push bench aircraft nose, in push bench aircraft nose excavation process, the rock block through push bench aircraft nose cutting drops the outer wall of connecting bin 2 and removes to the direction in steady increase drag reduction bin 3, because the top in steady increase drag reduction bin 3 is less than the top in connecting bin 2, and be close to the one side top in connecting bin 2 at steady increase drag reduction bin 3 and be equipped with trompil 31, simultaneously under the effect of keeping off stone plate 32, the rock block that moves along connecting bin 2 outer wall will further move to the trompil 31 department in steady increase drag reduction bin 3, and fall through trompil 31 in steady increase drag reduction bin 3, the phenomenon that the rock block gathers at the pipeline outer wall has just so significantly reduced, thereby reach the condition such as reduce rock sediment card pipe, hold pipe, reduce the top pipe resistance simultaneously, the rock block piles up in steady increase drag reduction bin 3, can utilize the rock block in steady increase its anti moment in steady increase drag reduction bin 3 in difficult excavation place, improve push bench tool bit 1, connecting bin 2 self stability, guarantee equipment safety and construction quality in connecting bin 2.
In the embodiment, the included angle between the stone baffle plate 32 and the axial direction is theta, and theta is more than or equal to 45 degrees and less than or equal to 75 degrees, and the top of the stone baffle plate 32 in the vertical direction is flush with the top of the connecting bin 2 in the vertical direction. In this embodiment, the angle θ between the baffle plate 32 and the axial direction is 60 °.
Like this, keep off slabstone 32 and axial direction contained angle be θ,45 is less than or equal to θ and is less than or equal to 75, and keep off slabstone 32 along vertical direction's top and connection storehouse 2 along vertical direction's top flush, can make like this guarantee to keep off the blocking effect of slabstone 32 to the rock block for the rock block can all enter into through trompil 31 basically and increase steady drag reduction storehouse 3.
In this embodiment, a guiding filter screen 34 is further disposed in the stability augmentation drag reduction bin 3, the guiding filter screen 34 is located below the opening 31, and the guiding filter screen 34 is disposed obliquely downward along a side away from the connection bin 2. I.e., the left end of the guide screen 34 is higher than the right end thereof, and is formed in a downwardly inclined structure along the right side as a whole. And a ballast tank 35 is further arranged in the stability augmentation and drag reduction bin 3, and the ballast tank 35 is positioned below one side of the guide filter screen 34 away from the connecting bin 2, namely, the ballast tank 35 is positioned at the lower end of the right end of the guide filter screen 34. The stability augmentation and drag reduction bin 3 is also internally provided with a connecting piece 33, the upper part of the connecting piece 33 is connected with the top of the stability augmentation and drag reduction bin 3, and the lower part of the connecting piece 33 is connected with one side of the guide filter screen 34, which is far away from the connecting bin 2.
Thus, by providing the guide screen 34, the movement of the rock mass entering the stability augmentation drag reduction silo 3 through the openings 31 can be guided so that the rock mass moves to a corresponding position in a set route. Through setting up connecting piece 33, can play the fixed action to direction filter screen 34, guarantee the stability of direction filter screen 34 use. By providing the ballast tank 35 and arranging the ballast tank 35 below the guide screen 34 away from the connecting bin 2, the rock blocks entering the stability augmentation drag reduction bin 3 through the openings 31 will move into the ballast tank 35 along the guide screen 34 to achieve concentrated collection of the rock blocks by the ballast tank 35, ensuring that the falling rock blocks can only be introduced into the ballast tank 35 without leaking to other places than the ballast tank 35. Through setting up ballast tank 35, utilize the inhaled rock mass can increase anti moment of turning over in difficult excavation district, improve self stability, guarantee the interior equipment safety of connecting bin 2 and push pipe construction quality.
In the embodiment, an air compressor 36 is arranged on one side of the ballast tank 35 close to the connecting bin 2, and the air compressor 36 is fixed in the stability and drag reduction bin 3 through high-strength friction bolts. An air inlet pipe 39 and an air outlet pipe 37 are connected to the air compressor 36, air tightness is guaranteed through connection, and an air inlet of the air inlet pipe 39 is located below the guide filter screen 34. A supporting piece 38 is arranged below the guide filter screen 34, and the air outlet pipe 37 is arranged on the supporting piece 38. A filter screen is also provided at the air inlet of the air intake pipe 39.
In this way, by arranging the air compressor 36 and making the air inlet below the guide filter screen 34, more rock blocks are sucked into the stability-increasing drag reduction bin 3 by utilizing the negative pressure generated at the air inlet, the number of rock blocks introduced into the ballast tank 35 by the upper baffle plate 32 is increased, and the jacking pipe resistance is further reduced. The support member 38 has an effect of supporting and mounting the outlet pipe 37. By providing a filter screen at the air inlet, it is possible to avoid rock mass falling into the air compressor 36, which could lead to failure of the air compressor 36.
In this embodiment, the air outlet pipe 37 includes an air outlet main pipe 371 and a plurality of air outlet branch pipes 372, a plurality of air outlets are formed on the air outlet main pipe 371, the plurality of air outlet branch pipes 372 are connected at the air outlets in a one-to-one correspondence manner, and the air outlet branch pipes 372 extend out of the stability-increasing drag reduction bin 3. Specifically, the materials of the main gas outlet tube 371 and the branch gas outlet tube 372 are high-pressure pipelines, the main gas outlet tube 371 is fixedly embedded in the wall of the stability-increasing drag-reducing bin 3, the main gas outlet tube 371 is provided with 6 gas outlets, the branch gas outlet tube 372 is provided with 6 gas outlets, and the 6 gas outlets are welded with the 6 branch gas outlet tubes 372.
In this way, the pressure of the air outlet pipe 37 of the air compressor 36 is utilized to cut and drop the head of the push bench to the rock block below the outer wall of the pipeline at the rear part of the head of the push bench to blow back the head of the push bench, so that resistance is effectively reduced; meanwhile, the weight of the ballast tank 35 (introduced broken stone) is balanced when the pipe pushing jack tool bit 1 is easy to cut and break by utilizing the air pressure of the air outlet pipe 37 of the air compressor 36, so that the weight of equipment is reduced, and the forward resistance is reduced.
The specific working principle of the device is described below: after the stability-increasing and drag-reducing device of the rock pipe pushing bench is driven into the rock stratum, the constructor can conduct pipe pushing construction after connecting the wires, the water inlet pipe, the water outlet pipe and other pipelines in the pipe pushing bench. Gradually jacking a pipe section, and starting cutting and drilling by the tool bit 1 of the pipe pushing machine. The ground operator needs to judge the difficulty level of rock stratum excavation according to the CCTV and the push bench tool bit 1. If rock mass is easy to excavate, the ground operator needs to turn on the air compressor 36, suck and cut the rock mass falling to the upper part of the outer wall of the rear pipeline by using the air inlet pipe 39 of the air compressor 36 and the baffle plate 32, and collect the sucked rock mass into the ballast tank 35 by using the guide filter screen 34. Meanwhile, the weight of the rock blocks sucked in the ballast tank 35 is balanced by the air outlet pressure of the air outlet pipe 37 of the air compressor 36, the air outlet amount of the air outlet pipe 37 is regulated by the air compressor 36 at the moment, so that the air outlet amount is gradually increased from small, and the maximum air outlet amount is used for balancing the weight of the ballast tank 35 so that the pipe joint axis is in the designed pipe jacking axis, and no larger deviation occurs. When crossing harder rock stratum, ground operators need to reduce the rotating speed of the push bench cutter head 1 to increase the cutting capacity of the push bench cutter head 1, and simultaneously close the air compressor 36, utilize broken stone sucked in the push bench process to increase the stability of the push bench cutter head 1 and the connecting bin 2, and cooperate with deviation correcting tools such as oil jack in the connecting bin 2 to adjust the position of the push bench cutter head 1 at the designed axis, so as to ensure the construction precision and the safety of an electrical system in the connecting bin 2. After the construction of a pipe section and a pipe jacking is completed, constructors need to enter the stability-increasing and drag-reducing bin 3, and rock blocks in the ballast tank 35 are leveled by using tools, so that the stability-increasing function of the device can be effectively exerted.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the present utility model, and all such modifications and equivalents are included in the scope of the claims.
Claims (10)
1. The utility model provides a rock push bench increases steady damping device, its characterized in that, includes push bench tool bit, connection storehouse and increases steady damping storehouse, the axial both sides of connection storehouse respectively with push bench tool bit with increase steady damping storehouse and connect, just the top of connection storehouse along vertical direction is higher than corresponding position increase steady damping storehouse the top that increases steady damping storehouse is close to connection storehouse one side still is equipped with the trompil the top of steady damping storehouse still be equipped with to connect the stone blocking plate of storehouse direction slope, the stone blocking plate with connect the storehouse to be located respectively the axial both sides of trompil.
2. The stability augmentation and drag reduction device of the rock pipe jacking machine according to claim 1, wherein an included angle between the stone blocking plate and the axial direction is theta, theta is more than or equal to 45 degrees and less than or equal to 75 degrees, and the top of the stone blocking plate in the vertical direction is flush with the top of the connecting bin in the vertical direction.
3. The stability augmentation and drag reduction apparatus of rock push bench of claim 2, wherein the baffle plate has an angle θ of 60 ° with the axial direction.
4. The stability augmentation and drag reduction apparatus of a rock push bench according to claim 1, wherein a guide filter screen is further provided in the stability augmentation and drag reduction bin, the guide filter screen is located below the opening, and the guide filter screen is disposed obliquely downward along a side away from the connection bin.
5. The stability augmentation and drag reduction device of the rock pipe jacking machine according to claim 4, wherein a connecting piece is further arranged in the stability augmentation and drag reduction bin, the upper side of the connecting piece is connected with the top of the stability augmentation and drag reduction bin, and the lower side of the connecting piece is connected with one side, far away from the connecting bin, of the guide filter screen.
6. The stability augmentation and drag reduction apparatus of a rock push bench according to claim 4, wherein a ballast tank is further arranged in the stability augmentation and drag reduction bin, and the ballast tank is positioned below one side of the guide filter screen away from the connecting bin.
7. The stability augmentation and drag reduction device of the rock pipe-jacking machine according to claim 6, wherein an air compressor is arranged on one side of the ballast tank, which is close to the connecting bin, an air inlet pipe and an air outlet pipe are connected to the air compressor, and an air inlet of the air inlet pipe is positioned below the guide filter screen.
8. The stability augmentation and drag reduction apparatus of rock push bench according to claim 7, wherein a supporting member is further provided below the guide filter screen, and the air outlet pipe is provided on the supporting member.
9. The stability augmentation and drag reduction device of the rock pipe jacking machine according to claim 7, wherein a filter screen is further arranged at the air inlet of the air inlet pipe.
10. The stability augmentation and drag reduction device of the rock pipe jacking machine according to claim 7, wherein the air outlet pipe comprises an air outlet main pipe and a plurality of air outlet branch pipes, a plurality of air outlets are formed in the air outlet main pipe, the plurality of air outlet branch pipes are connected to the air outlets in a one-to-one correspondence mode, and the air outlet branch pipes extend out of the stability augmentation and drag reduction bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321362961.8U CN219865019U (en) | 2023-05-31 | 2023-05-31 | Stability-increasing and drag-reducing device of rock pipe jacking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321362961.8U CN219865019U (en) | 2023-05-31 | 2023-05-31 | Stability-increasing and drag-reducing device of rock pipe jacking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865019U true CN219865019U (en) | 2023-10-20 |
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ID=88321413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321362961.8U Active CN219865019U (en) | 2023-05-31 | 2023-05-31 | Stability-increasing and drag-reducing device of rock pipe jacking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865019U (en) |
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2023
- 2023-05-31 CN CN202321362961.8U patent/CN219865019U/en active Active
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