Aircraft nose suitable for fragmentation method updates reinforced concrete pipeline
Technical Field
The invention belongs to the technical field of reinforced concrete pipeline updating devices, and particularly relates to a machine head suitable for updating a reinforced concrete pipeline by a fragmentation method.
Background
The method commonly used in the existing fragmentation pipeline updating technology is a pneumatic fragmentation pipe method, a static pulling fragmentation pipe method and the like, and the method adopts a pipe bursting head to expand and crush an old concrete pipeline, squeeze crushed concrete fragments into the surrounding soil body, and drag a new pipeline into the crushed concrete pipeline so as to achieve the purpose of updating the pipeline. However, these methods have a common disadvantage in that they cannot be used for renovating reinforced concrete pipes because they cannot treat the reinforcing bars in the reinforced concrete pipes, and thus they have a relatively small applicability. And certain soil body disturbance can be generated in the construction process, and even if the pipelines with the same diameter are replaced, the soil layer can be moved due to the fact that the diameter of the bursting head is slightly larger than that of the old pipeline.
Therefore, the invention discloses a fragmentation pipe head which can fragment and renew a reinforced concrete pipeline and is necessary to reduce disturbance to the surrounding soil body in the pipeline renewal.
Disclosure of Invention
The invention aims to provide a machine head suitable for replacing a reinforced concrete pipeline by a fragmentation method, and solves the problems that the reinforced concrete pipeline is not easy to replace and the surrounding soil body is easy to disturb.
In order to achieve the purpose, the invention provides a machine head suitable for updating a reinforced concrete pipeline by a fragmentation method, which comprises a shell, wherein a plurality of pneumatic picks are uniformly arranged at the front end of the shell, a drill bit fixed at the front end of the pneumatic pick is in contact with an old pipeline, a pulling head is arranged in the middle of one end of the shell, which is provided with the pneumatic pick, the pulling head is fixedly connected with the shell through a connecting plate, and the pulling head is connected with a power unit through a pulling rope;
the inside of casing is provided with the apotheca of storing the concrete piece, the front end of apotheca is provided with the collecting hopper, the edge and the casing fixed connection of collecting hopper, the rear end of apotheca is provided with the cutting chamber, be connected through the changeover portion between apotheca and the cutting chamber, the changeover portion is for being close to the big toper structure of apotheca end opening, the inside front end of cutting chamber is provided with the cutting machine of cutting the reinforcing bar, the bottom of apotheca is provided with discharge gate one, the bottom of cutting chamber is provided with discharge gate two, discharge gate two is located the rear of cutting machine.
Furthermore, one end face of the shell, which is provided with the air pick, is an inclined plane, and the included angle between the inclined plane and the central axis of the pipeline is 60-80 degrees.
Furthermore, the number of connecting plates is 3, and 3 connecting plates are evenly distributed on the shell.
Further, the front end of the drill bit is set to be a tip, and one surface, close to the old pipeline, of the drill bit is in contact with the old pipeline.
Furthermore, the aggregate bin is of a conical structure with a large opening close to the air pick end, and the end face of the aggregate bin close to the air pick is an inclined end face.
Furthermore, a transport vehicle is arranged below the storage chamber, a partition plate is arranged inside the transport vehicle, the partition plate divides the transport vehicle into a first car hopper and a second car hopper, the first car hopper is located under the first discharge port, and the second car hopper is located under the second discharge port.
Furthermore, the rear end of the shell is provided with a fixed seat, a new pipeline is fixedly connected to the fixed seat, and the diameter of the new pipeline is not larger than that of the shell.
The machine head suitable for replacing the reinforced concrete pipeline by the fragmentation method breaks the old pipeline by the air pick, the broken concrete fragments and the reinforcing steel bars are taken into the storage chamber together, the concrete fragments are accumulated in the storage chamber, and the reinforcing steel bars enter the cutting chamber for cutting, so that the separation of the concrete fragments and the reinforcing steel bars is realized, and the disturbance of a soil body is not caused. The rear end of the shell is fixed with a new pipeline through a screw, the old pipeline is cracked, meanwhile, the pipeline is updated, and the working efficiency is improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a machine head suitable for renovating reinforced concrete pipelines by a fragmentation method according to the invention;
FIG. 2 is a left side view of a schematic structural diagram of an embodiment of a machine head suitable for replacing reinforced concrete pipes by a fragmentation method according to the present invention.
Reference numerals
1. A housing; 2. a pneumatic pick; 3. a drill bit; 4. a puller head; 5. a connecting plate; 6. a storage chamber; 7. a first discharge hole; 8. a cutting chamber; 9. a cutter; 10. a discharge hole II; 11. a partition plate; 12. a first car hopper; 13. a second car hopper; 14. a fixed seat; 15. a new pipeline; 16. a collection hopper.
Detailed Description
Examples
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
Fig. 1 is a schematic structural diagram of an embodiment of a machine head suitable for renovating reinforced concrete pipelines by a fragmentation method, and fig. 2 is a schematic structural diagram of a machine head suitable for renovating reinforced concrete pipelines by a fragmentation method. As shown in the figure, the machine head suitable for the fragmentation method for renewing the reinforced concrete pipeline comprises a shell body 1, wherein the outer diameter of the shell body 1 is not larger than that of an old pipeline. The front end of the shell 1 is uniformly provided with a plurality of pneumatic picks 2, and the pneumatic picks 2 are welded and fixed on the shell 1. The end face of the shell 1, which is provided with the air pick 2, is an inclined plane, and the included angle between the inclined plane and the central axis of the pipeline is 60-80 degrees, so that the crushing operation of the old pipeline is facilitated. The front end of the air pick 2 is provided with a drill bit 3, the front end of the drill bit 3 is set to be a tip, and one surface of the drill bit 3 close to the old pipeline is in contact with the old pipeline. The pneumatic pick 2 vibrates and impacts the old pipeline by means of a pneumatic source to shatter the concrete of the old pipeline. The structure of the air pick 2 is the prior art and is not described herein.
The middle of one end of the shell 1, which is provided with the air pick 2, is provided with a traction head 4, the traction head 4 is fixedly connected with the shell 1 through a connecting plate 5, and the connecting plate 5 is fixedly connected with the traction head 4 and the shell 1 through welding. The traction head 4 is connected with the power unit through a traction rope. The power unit can be a power trolley or other existing technologies, and the power unit pulls the whole machine head to move through the pulling rope and the pulling head 4. The number of connecting plates 5 is 3, and 3 connecting plates 5 are evenly distributed on the shell 1.
A storage chamber 6 for storing concrete scraps is arranged in the housing 1, a collecting hopper 16 is arranged at the front end of the storage chamber 6, and the collecting hopper 16 is communicated with the storage chamber 6. The aggregate bin 16 is a conical structure with a large opening close to the air pick 2, and the end surface of the aggregate bin 16 close to the air pick 2 is an inclined end surface. The edge of the collecting hopper 16 is fixedly connected with the housing 1 by welding, and the edge of the collecting hopper 16 is not too far away from the edge of the housing 1, preferably within 20 cm. The air pick 2 crushes the old pipeline, crushed concrete scraps and stripped reinforcing steel bars enter the storage chamber 6 through the collecting hopper 16, and the concrete scraps are accumulated and stored in the storage chamber 6. The bottom of the storage chamber 6 is provided with a first discharge hole 7, and the concrete scraps accumulated in the storage chamber 6 are discharged through the first discharge hole 7. The rear end of the storage chamber 6 is provided with a cutting chamber 8, the storage chamber 6 is connected with the cutting chamber 8 through a transition section, the transition section is of a conical structure with a large opening close to the end of the storage chamber 6, namely the bottom of the cutting chamber 8 is higher than that of the storage chamber 6, and concrete scraps are prevented from easily entering the cutting chamber 8. The cutting machine 9 for cutting the reinforcing steel bars is arranged at the front end inside the cutting chamber 8. The bottom of the cutting chamber 8 is provided with a second discharge hole 10, and the second discharge hole 10 is positioned behind the cutting machine 9. The reinforcing bar that enters into apotheca 6 enters into cutting chamber 8 through the changeover portion in, and cutting machine 9 cuts the reinforcing bar, and the reinforcing bar after the cutting is discharged through two 10 discharge gates.
A transport vehicle is arranged below the storage chamber 6, a partition plate 11 is arranged inside the transport vehicle, the partition plate 11 divides the transport vehicle into a first car hopper 12 and a second car hopper 13, the first car hopper 12 is located right below the first discharge port 7, and the second car hopper 13 is located right below the second discharge port 10. The concrete scraps discharged through the first discharge port 7 fall into the first car hopper 12, the steel bars discharged through the second discharge port 10 fall into the second car hopper 13, and the steel bars and the concrete scraps are effectively separated.
The rear end of casing 1 is provided with fixing base 14, through new pipeline 15 of screw fixedly connected with on the fixing base 14, and the diameter of new pipeline 15 is not more than the diameter of casing 1, drags into the change that realizes the pipeline with new pipeline 15 when cracked old pipeline through the aircraft nose, has improved work efficiency.
When the concrete implementation is carried out, the air pick 2 is firstly used for impacting and crushing the original concrete pipeline for a period of time, then the machine head is pulled forward for a distance through the power unit, and the pipeline is repeatedly and circularly crushed. When the pneumatic pick 2 impacts the old crushed pipeline, crushed concrete chips and stripped steel bars enter the storage chamber 6 through the collecting hopper 16, the concrete chips are accumulated in the storage chamber 6, the steel bars enter the steel bar cutting chamber 8 and are cut into uniform small sections by the cutting machine 9 in the steel bar cutting chamber 8, and after the concrete chips in the chip storage chamber 6 and the steel bars in the steel bar cutting chamber 8 are accumulated to a certain amount, the concrete chips and the steel bars are transported out of the pipeline through a transport vehicle.
Therefore, the machine head which is suitable for replacing the reinforced concrete pipeline by the fragmentation method and has the structure solves the problems that the reinforced concrete pipeline is not easy to replace and the surrounding soil body is easy to disturb, and has the advantages of simple structure and high working efficiency.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.