Pipe jacking and crushing device

Abstract

The utility model provides a pipe jacking crushing device, which relates to the field of pipe jacking construction, and comprises a pipe body, two horizontal sections in the pipe body are connected to the upper end and the lower end of a vertical section, the two horizontal sections are respectively connected with a pipe jacking machine and a mud discharge pipe, and the upper end and the lower end of one side wall of the vertical section are respectively provided with a feed port and a discharge port; the filter plate is arranged in the vertical section of the pipe body, a crushing box in the crushing structure is fixed to one side wall of the vertical section, the upper end and the lower end of the side wall, close to the vertical section, of the crushing box are provided with through openings communicating with the feeding port and the discharging port correspondingly, a rotating shaft is fixedly sleeved with crushing rollers, the multiple crushing rollers are sequentially arranged in the crushing box in a rotating mode, and a crushing motor is connected with the rotating shaft. Slurry enters the vertical section through the filter plate to be discharged, large stone blocks are filtered out by the filter plate and then enter the crushing box from the feeding port, the crushing roller rotates to crush the stone blocks secondarily, the crushed stone blocks are discharged along with the slurry, under the condition that the displacement is not affected, the stone blocks cannot be clamped in the pipe jacking machine, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction, in particular to a pipe jacking crushing device. Background Art

[0002] Traditional municipal pipe network renovation and construction require excavation of the road surface, which not only affects traffic but also pollutes the environment. Compared to traditional construction methods, a more advanced modern construction method, pipe jacking, has the advantages of not requiring excavation, requiring less floor space, minimizing traffic impact, being faster, environmentally friendly, economical, and efficient, and has been widely promoted and applied.

[0003] However, some problems were also encountered during the construction process. Due to the different geological soil layers, long rock layers appeared in many areas, and the rocks excavated by the cutter head were relatively large. Once the large rocks entered the cutter head mud chamber, they could easily block the pipes, causing construction to be interrupted.

[0004] Therefore, there is an urgent need for a pipe jacking crushing device that can perform secondary crushing of large rocks without affecting the mud discharge rate to avoid pipe blockage. Utility Model Content

[0005] In view of this, an embodiment of the present invention provides a pipe jacking crushing device, which aims to solve the problem of pipe jacking caused by stones without affecting the mud discharge rate.

[0006] The embodiment of the present invention provides a pipe jacking crushing device, comprising:

[0007] The pipe body includes two horizontal sections and a vertical section. The two horizontal sections are connected to the upper and lower ends of the vertical section. The upper horizontal section is connected to the pipe jacking machine, and the lower horizontal section is connected to the mud discharge pipe. The upper and lower ends of one side wall of the vertical section are respectively provided with a feed port and a discharge port;

[0008] a filter plate, disposed in the vertical section of the tube body, with one end of the filter plate extending to the feed inlet; and

[0009] The crushing structure includes a crushing box, multiple crushing rollers, multiple rotating shafts and a crushing motor. The crushing box is fixed on a side wall of the vertical section. The upper and lower ends of the side wall of the crushing box close to the vertical section are respectively provided with openings connected to the feed port and the discharge port. The multiple crushing rollers are connected to the multiple rotating shafts in a one-to-one correspondence. The crushing rollers are fixed on the outside of the rotating shafts. The multiple crushing rollers are arranged in sequence and rotated in the crushing box. The crushing motor is connected to the rotating shaft.

[0010] Furthermore, a plurality of water holes are provided on the side walls of the crushing box and the vertical section in contact with each other.

[0011] Furthermore, a mounting block is provided on the inner wall of the vertical section close to the feed port, and the mounting block is located at the lower end of the feed port;

[0012] The filter plate is hinged to the inner wall of the tube body at one end away from the feed port, a spring is fixed below the filter plate at one end close to the feed port, and the other end of the spring is fixed to the mounting block.

[0013] Furthermore, the side wall of the crushing box in contact with the vertical section is the inner side wall, the side wall opposite to the inner side wall is the outer side wall, and the bottom wall of the crushing box is arranged to be gradually inclined downward from the outside to the inside.

[0014] Furthermore, it also includes a stirring motor and a stirring rod, the stirring rod is rotatably arranged at the lower end of the crushing box, and the stirring motor is arranged outside the crushing box and fixedly connected to the stirring rod.

[0015] Furthermore, a blade is spirally wound around the outside of the stirring rod.

[0016] Furthermore, the stirring rod is arranged perpendicular to the vertical section, and one end of the stirring rod extends into the discharge port.

[0017] Furthermore, a transition section is provided above the vertical section at the connection with the horizontal section, and the transition section is an inclined surface.

[0018] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention are as follows: in the pipe jacking crushing device of the present invention, during the jacking process of the pipe jacking machine, mud enters through the horizontal section above, and the mud enters the vertical section through the filter plate for discharge. Large stones are filtered out by the filter plate and enter the crushing box from the feed port. At the same time, the crushing motor is started to drive the crushing roller to rotate, and the stones are crushed for the second time. The crushed stones enter the vertical section through the discharge port and are discharged together with the mud. Without affecting the displacement, the stones will not be stuck inside the pipe jacking machine, and the frequency of cleaning the inside of the pipe jacking machine is reduced, thereby making the pipe jacking machine more convenient to use and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view schematic diagram of an embodiment of the pipe jacking crushing device provided by the utility model;

[0020] Figure 2 yes Figure 1 AA cross-sectional diagram in;

[0021] Figure 3 yes Figure 1 Schematic diagram of the internal structure.

[0022] In the figure: 1. Tube body; 11. Horizontal section; 12. Vertical section; 13. Feed inlet; 14. Discharge outlet; 15. Water hole; 16. Inclined surface; 2. Filter plate; 3. Crushing box; 4. Crushing roller; 5. Rotating shaft; 6. Crushing motor; 7. Mounting block; 8. Spring; 9. Stirring rod; 91. Blade; 10. Stirring motor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0024] Please refer to Figure 1-Figure 3 As shown, an embodiment of the present invention provides a pipe jacking crushing device, which includes a pipe body 1, a filter plate 2 and a crushing structure. The pipe body 1 includes two horizontal sections 11 and a vertical section 12. The two horizontal sections 11 are connected to the upper and lower ends of the vertical section 12. The upper horizontal section 11 is connected to the pipe jacking machine, and the lower horizontal section 11 is connected to the mud discharge pipe. The upper and lower ends of one side wall of the vertical section 12 are respectively provided with a feed port 13 and a discharge port 14; the filter plate 2 is arranged in the vertical section 12 of the pipe body 1, and one end of the filter plate 2 extends to the feed port 13; the crushing structure includes a crushing box 3, multiple crushing rollers 4, multiple rotating shafts 5 and a crushing motor 6. The crushing box 3 is fixed on one side wall of the vertical section 12. The upper and lower ends of the side wall of the crushing box 3 near the vertical section 12 are respectively provided with through openings connected to the feed port 13 and the discharge port 14. Multiple crushing rollers 4 are connected one-to-one with multiple rotating shafts 5. The crushing rollers 4 are sleeved and fixed outside the rotating shaft 5. Multiple crushing rollers 4 are arranged in sequence and rotated in the crushing box 3. The crushing motor 6 is connected to the rotating shaft 5.

[0025] During the jacking process of the pipe jacking machine, the mud enters through the horizontal section 11 above, and enters the vertical section 12 through the filter plate 2 for discharge. The large stones are filtered out by the filter plate 2 and enter the crushing box 3 from the feed port 13. At the same time, the crushing motor 6 is started to drive the crushing roller 4 to rotate, and the stones are crushed for the second time. The crushed stones enter the vertical section 12 through the discharge port 14 and are discharged together with the mud. Without affecting the displacement, the stones will not be stuck inside the pipe jacking machine, reducing the frequency of cleaning the inside of the pipe jacking machine, making the pipe jacking machine more convenient to use and improving construction efficiency.

[0026] The two horizontal sections 11 of the pipe body 1 in the device are respectively connected to the pipe jacking machine and the mud discharge pipe, and can be cleaned, repaired or replaced separately. The crushing box 3 can even be disassembled separately to clean the pipe body 1, which is easy to use.

[0027] Specifically, in the crushing structure, the crushing motor 6 drives one of the rotating shafts 5 to rotate, and the multiple rotating shafts 5 are connected by gears, belt drives, or chain drives, so that the multiple crushing tubes rotate synchronously, which will not be described in detail here.

[0028] Specifically, a plurality of water holes 15 are provided on the side walls where the crushing box 3 and the vertical section 12 are in contact. The water holes 15 can discharge the muddy water entering the crushing box 3 from the side walls in advance to avoid excessive water in the crushing box 3 affecting the crushing roller 4 in crushing stones.

[0029] Furthermore, a mounting block 7 is provided on the inner wall of the vertical section 12 near the feed port 13, and the mounting block 7 is located at the lower end of the feed port 13; the filter plate 2 is hinged to the inner wall of the tube body 1 at one end away from the feed port 13, and a spring 8 is fixed below the end of the filter plate 2 near the feed port 13, and the other end of the spring 8 is fixed to the mounting block 7.

[0030] To facilitate installation and minimize slurry discharge, the area of ​​mounting block 7 is significantly smaller than the inner diameter of tube body 1. By hingedly connecting one end of filter plate 2 and connecting the other end via spring 8, when the weight of the rocks is high during the rock filtering process, the spring 8 on filter plate 2 automatically descends, compressing spring 8 and tilting filter plate 2 downward, facilitating rapid entry of rocks into crushing chamber 3 for crushing. This also allows rocks above filter plate 2 to be discharged, preventing them from clogging the filter pores and hindering slurry discharge. Furthermore, during the rock discharge process, the pressure on spring 8 on filter plate 2 decreases, allowing it to move upward under the force of spring 8. During this process, spring 8 causes filter plate 2 to continuously swing up and down until the weight of the rocks on filter plate 2 exceeds the force of spring 8, further compressing spring 8. This cycle repeats, causing filter plate 2 to vibrate continuously, preventing dirt or mud residue from clogging the filter pores.

[0031] Specifically, the side wall of the crushing box 3 in contact with the vertical section 12 is the inner side wall, the side wall opposite to the inner side wall is the outer side wall, and the bottom wall of the crushing box 3 is gradually inclined downward from the outside to the inside.

[0032] The bottom wall of the crushing box 3 is tilted downward, so that the crushed stones can be discharged smoothly from the discharge port 14 to merge with the mud.

[0033] Furthermore, it also includes a stirring motor 10 and a stirring rod 9. The stirring rod 9 is rotatably arranged at the lower end of the crushing box 3. The stirring motor 10 is arranged outside the crushing box 3 and is fixedly connected to the stirring rod 9.

[0034] The stirring motor 10 drives the stirring rod 9 to rotate, so that the stones at the bottom of the crushing box 3 are mixed with the mud and water, so that they can be discharged from the discharge port 14 more smoothly.

[0035] Furthermore, a blade 91 is spirally wound around the outside of the stirring rod 9. The spiral blade 91 can improve the stirring efficiency and further crush the gravel, thereby ensuring that the gravel finally discharged will not clog the pipe jacking machine.

[0036] Specifically, the stirring rod 9 is perpendicular to the vertical section 12, and one end of the stirring rod 9 extends into the discharge port 14. The horizontal stirring rod 9 cooperates with the spirally wound blade 91 to transport gravel. The transportation principle is similar to that of an auger, which can speed up the discharge of gravel.

[0037] Furthermore, a transition section is provided above the vertical section 12 at the connection with the horizontal section 11. The transition section is a slope 16. The slope 16 helps to guide the mud when it enters, especially the slope 16 located above the pipe body 1. When the mud rushes towards the slope 16, it is blocked, so that the mud turns and falls directly onto the filter plate 2.

[0038] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0039] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pipe jacking crushing device, characterized in that: include: The pipe body includes two horizontal sections and a vertical section. The two horizontal sections are connected to the upper and lower ends of the vertical section. The upper horizontal section is connected to the pipe jacking machine, and the lower horizontal section is connected to the mud discharge pipe. The upper and lower ends of one side wall of the vertical section are respectively provided with a feed port and a discharge port; a filter plate, disposed in the vertical section of the tube body, with one end of the filter plate extending to the feed inlet; and The crushing structure includes a crushing box, multiple crushing rollers, multiple rotating shafts and a crushing motor. The crushing box is fixed on a side wall of the vertical section. The upper and lower ends of the side wall of the crushing box close to the vertical section are respectively provided with openings connected to the feed port and the discharge port. The multiple crushing rollers are connected to the multiple rotating shafts in a one-to-one correspondence. The crushing rollers are fixed on the outside of the rotating shafts. The multiple crushing rollers are arranged in sequence and rotated in the crushing box. The crushing motor is connected to the rotating shaft.

2. The pipe jacking crushing device according to claim 1, characterized in that: A plurality of water holes are provided on the side walls where the crushing box and the vertical section are in contact.

3. The pipe jacking crushing device according to claim 1, characterized in that: A mounting block is provided on the inner wall of the vertical section close to the feed port, and the mounting block is located at the lower end of the feed port; The filter plate is hinged to the inner wall of the tube body at one end away from the feed port, a spring is fixed below the filter plate at one end close to the feed port, and the other end of the spring is fixed to the mounting block.

4. The pipe jacking crushing device according to claim 1, characterized in that: The side wall of the crushing box in contact with the vertical section is the inner side wall, the side wall opposite to the inner side wall is the outer side wall, and the bottom wall of the crushing box is arranged to be gradually inclined downward from the outside to the inside.

5. The pipe jacking crushing device according to claim 1, characterized in that: It also includes a stirring motor and a stirring rod. The stirring rod is rotatably arranged at the lower end of the crushing box. The stirring motor is arranged outside the crushing box and is fixedly connected to the stirring rod.

6. The pipe jacking crushing device according to claim 5, characterized in that: The outer side of the stirring rod is spirally wound with blades.

7. The pipe jacking crushing device according to claim 6, characterized in that: The stirring rod is arranged perpendicular to the vertical section, and one end of the stirring rod extends into the discharge port.

8. The pipe jacking crushing device according to claim 1, characterized in that: A transition section is provided above the vertical section at the connection with the horizontal section, and the transition section is an inclined surface.

Images