CN220726292U - Push device of push bench - Google Patents

Abstract

The application discloses push device of push bench belongs to push bench technical field. The hydraulic device mainly comprises a shell, wherein a cutter disc is arranged at the front end of the shell, hydraulic equipment for driving the shell to push is arranged at the rear end of the shell, and the hydraulic device further comprises: the liquid inlet assembly comprises a first water inlet pipe section, a circulating cavity extending to the side face of the cutterhead is arranged in the cutterhead, a first valve is arranged at one end, close to the outer part of the cutterhead, of the circulating cavity, and the first water inlet pipe section is communicated with the circulating cavity; the mud pumping mechanism comprises a mud pumping pipe, one end of the mud pumping pipe is provided with a valve II, and the valve II is arranged on the side face of the shell. The utility model provides a push device of push bench improves the water content of soil through mud pumping mechanism and feed liquor subassembly, reduces the coefficient of friction of casing and blade disc and soil, and mud can be discharged to the outside of casing through mud pumping mechanism to the resistance that receives when reducing the casing and breaking the earth.

Description

Push device of push bench

Technical Field

The application relates to the technical field of push bench, in particular to a push bench pushing device.

Background

The pipe jacking technology is a trenchless tunneling pipeline laying construction technology for municipal construction, and pipeline is pushed into a receiving well from a working well by a pipe jacking machine and a pushing oil cylinder in pipe jacking construction, so that pipeline laying is completed.

The patent with the publication number of CN216923425U discloses a soil pressure balance pipe jacking machine, soil is cut through a cutter disc, the soil enters the machine body, then a servo motor is started, the servo motor drives a helical blade to rotate through a rotating shaft, the soil is conveyed rightwards, and the soil is discharged out of a material conveying cylinder through a discharging pipe.

However, the underground water content in different areas is inconsistent, if the soil hardness is higher, the soil formed into hard blocks makes the cutter disc break the soil with great difficulty, and the required thrust of organism is higher, is unfavorable for the propulsion of organism, and if the soil water content is more, earth can adhere on the surface of helical blade, makes earth be difficult to export outside the organism.

It is therefore desirable to provide a push bench pusher that solves the above-described problems.

It should be noted that the above information disclosed in this background section is only for understanding the background of the present application concept and, therefore, it may contain information that does not constitute prior art.

Disclosure of Invention

Based on the above problems existing in the prior art, the problems to be solved by the present application are: the utility model provides a push device of push bench improves the water content of soil through mud pumping mechanism and feed liquor subassembly, reduces the coefficient of friction of casing and blade disc and soil, and mud can be discharged to the outside of casing through mud pumping mechanism to reduce the resistance that receives when the casing breaks the soil.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a push device of push bench, includes the casing, the blade disc is installed to the front end of casing, the drive is installed to the rear end of casing the hydraulic equipment of casing pushing operation still includes: the liquid inlet assembly comprises a water inlet pipe section I, a circulation cavity extending to the side face of the cutterhead is arranged in the cutterhead, a valve I is arranged at one end, close to the outer part of the cutterhead, of the circulation cavity, and the water inlet pipe section I is communicated with the circulation cavity; the mud pumping mechanism comprises a mud pumping pipe, wherein a valve II is arranged at one end of the mud pumping pipe, and the valve II is arranged on the side face of the shell.

Further, the rear end of the cutterhead is fixedly connected with a shaft barrel, and the shaft barrel penetrates through the front end of the shell and is connected with the shell in a rotating mode.

Further, a second water inlet pipe section communicated with the circulation cavity is further arranged at the rear end of the cutterhead, the second water inlet pipe section penetrates through the shaft barrel, and the first water inlet pipe section is connected with the second water inlet pipe section through a rotary joint.

Further, a transmission gear is sleeved on the outer surface of the shaft barrel, and the transmission gear is fixedly connected with the shaft barrel.

Further, a broken pipe section is further arranged between the mud pumping pipe and the second valve, and the broken pipe section is fixedly connected to the inner wall of the shell.

Further, a rotating shaft is arranged in the broken pipe section, one end of the rotating shaft penetrates through the broken pipe section and extends out of the broken pipe section, and stirring blades are arranged on the outer surface of the rotating shaft, which is positioned in the broken pipe section.

The beneficial effects of this application are: the utility model provides a pair of push bench thrustor has adopted the mutual cooperation between pumping mechanism and the feed liquor subassembly, derive the circulation chamber on the blade disc with the liquid that plays the lubrication effect through the pump, because the rotation of blade disc, can break and stir soil, can make the liquid comparatively fully cover at the surface of blade disc, improve the moisture content of soil and reduce the coefficient of friction of casing and blade disc and soil, soil and blade disc exhaust liquid intensive mixing and can discharge to the outside of casing through pumping mechanism after forming mud, the resistance that receives when can effectively reducing the casing and break the soil.

In addition to the objects, features, and advantages described above, there are other objects, features, and advantages of the present application. The present application will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic view of a push jack of the present disclosure;

FIG. 2 is a schematic cross-sectional view of the cutterhead of FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic cross-sectional view of the broken pipe section of FIG. 2;

wherein, each reference sign in the figure:

1. a housing;

2. a cutterhead; 21. a shaft cylinder; 211. a transmission gear;

3. a mud pumping mechanism; 31. a second valve; 32. a mud pumping pipe; 33. crushing a pipe section; 331. a rotating shaft; 332. stirring the leaves;

4. a liquid inlet component; 41. a water inlet pipe section II; 42. a rotary joint; 43. a water inlet pipe section I; 44. a flow-through chamber; 441. and a valve I.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

As shown in fig. 1, the application provides a pushing device of a pipe jacking machine, which comprises a shell 1, wherein a cutter head 2 is installed at the front end of the shell 1, a hydraulic device for driving the shell 1 to push is installed at the rear end of the shell 1, the hydraulic device can be a hydraulic cylinder, the shell 1 is placed in soil, thrust is provided through the hydraulic device, and the cutter head 2 is driven to rotate so as to break the soil.

As shown in fig. 2-3, the pushing device of the push bench further comprises a liquid inlet component 4, the liquid inlet component 4 comprises a first water inlet pipe section 43, a plurality of circulation cavities 44 extending to the side surface of the cutter head 2 are arranged in the cutter head 2, the plurality of circulation cavities 44 are distributed in a circumferential array, the cutter head 2 can be prevented from shaking eccentrically when rotated, the preferential number is two, and the first water inlet pipe section 43 is communicated with the circulation cavities 44. When the soil is broken, liquid with lubricating effects such as lubricant or water is led into the first water inlet pipe section 43 through the pump and is discharged from the circulation cavity 44, and due to the rotation of the cutterhead 2, the liquid can be fully covered on the surface of the cutterhead 2 and is mixed with soil, so that the water content of the soil is increased, the friction coefficient between the shell 1 and the cutterhead 2 and the soil is reduced, and the pushing operation of the shell 1 is facilitated.

One end of the circulation cavity 44, which is close to the outside of the cutterhead 2, is provided with a valve one 441, and the valve one 441 can be a one-way valve with an output end facing the outside of the cutterhead 2, so that the liquid discharge is not affected and the soil can be prevented from entering the circulation cavity 44.

As shown in fig. 1-2, a mud pumping mechanism 3 is installed in the casing 1, the mud pumping mechanism 3 includes a mud pumping pipe 32, one end of the mud pumping pipe 32 extends from the rear end of the casing 1 to the outside of the casing 1, and one end of the mud pumping pipe 32 extending out of the casing 1 can be connected with a pumping end of a negative pressure device, which can be a sewage pump. One end of the mud pumping pipe 32 is provided with a valve II 31, the valve II 31 is arranged on the side face of the shell 1, the valve II 31 can be an air valve, after liquid is discharged through the liquid inlet component 4, the cutter head 2 breaks and stirs soil, so that the soil is fully mixed with the liquid discharged by the cutter head 2 to form mud, the mud pumping pump generates negative pressure at the valve II 31 through the mud pumping pipe 32, and the mud is pumped out to the outside of the shell 1 through the mud pumping pipe 32, so that the resistance of the cutter head 2 is reduced.

In an embodiment, the rear end of the cutterhead 2 is fixedly connected with a shaft barrel 21, the shaft barrel 21 penetrates through the front end of the shell 1 and is rotatably connected with the shell 1, and the cutterhead 2 is rotatably arranged at the front end of the shell 1 through the shaft barrel 21. The rear end of the cutterhead 2 is further provided with a second water inlet pipe section 41 communicated with the circulation cavity 44, the second water inlet pipe section 41 is fixedly connected to the cutterhead 2, the second water inlet pipe section 41 penetrates through the inside of the shaft 21, the first water inlet pipe section 43 is connected with the second water inlet pipe section 41 through a rotary joint 42, one end, close to the rotary joint 42, of the first water inlet pipe section 43 can be fixedly connected to the inside of the shell 1, and then liquid can be guided into the rotary cutterhead 2 through the second water inlet pipe section 41.

The outer surface of the shaft cylinder 21 is sleeved with a transmission gear 211, the transmission gear 211 is fixedly connected with the shaft cylinder 21, a motor is installed in the shell 1, and the output end of the motor is provided with another gear, so that the gear is meshed with the transmission gear 211, and the cutter head 2 can be driven to rotate through the motor.

In an embodiment, a crushing pipe section 33 is further disposed between the mud pumping pipe 32 and the second valve 31, the crushing pipe section 33 is fixedly connected to the inner wall of the casing 1, the crushing pipe section 33 may be a hard pipe made of metal, and if the mud entering the crushing pipe section 33 contains massive soil particles, the crushing pipe section 33 may further crush the particles so as to improve the pumping effect of the sludge pump.

Specifically, the inside of the crushing pipe section 33 is provided with a rotating shaft 331, one end of the rotating shaft 331 passes through the crushing pipe section 33 and extends out of the crushing pipe section 33, the outer surface of the rotating shaft 331 located in the crushing pipe section 33 is provided with a stirring blade 332, a sealing bearing can be installed between the rotating shaft 331 and the crushing pipe section 33, the rotating shaft 331 can be connected with the output end of a motor, the motor can be installed on the inner wall of the shell 1, and the motor can drive the stirring blade 332 to rotate rapidly and crush mud in the crushing pipe section 33 further through the rotating shaft 331 during operation.

Working principle:

the shell 1 is placed in soil, thrust is provided by hydraulic equipment, the cutter head 2 is driven to rotate to break the soil, liquid with lubricating effect is led into the circulation cavity 44 from the first water inlet pipe section 43 by a pump and is discharged from the circulation cavity 44, the liquid can be fully covered on the surface of the cutter head 2 due to the rotation of the cutter head 2 and is mixed with the soil, the water content of the soil is increased, and the friction coefficients of the shell 1, the cutter head 2 and the soil are reduced;

after the liquid with lubricating function is discharged through the liquid inlet component 4, the cutter head 2 breaks and stirs the soil, so that the soil is fully mixed with the liquid discharged by the cutter head 2 to form slurry, the sewage pump generates negative pressure at the second valve 31 through the mud pumping pipe 32, and the slurry can be pumped out of the shell 1 through the mud pumping pipe 32.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (6)

1. The utility model provides a push device of push bench, includes casing (1), blade disc (2) are installed to the front end of casing (1), the hydraulic equipment of drive the push operation of casing (1) is installed to the rear end of casing (1), its characterized in that: further comprises:

the liquid inlet assembly (4), the liquid inlet assembly (4) comprises a first water inlet pipe section (43), a circulation cavity (44) extending to the side surface of the cutterhead (2) is arranged in the cutterhead (2), a first valve (441) is arranged at one end, close to the outer part of the cutterhead (2), of the circulation cavity (44), and the first water inlet pipe section (43) is communicated with the circulation cavity (44);

the mud pumping mechanism (3), the mud pumping mechanism (3) comprises a mud pumping pipe (32), one end of the mud pumping pipe (32) is provided with a valve II (31), and the valve II (31) is arranged on the side face of the shell (1).

2. The push bench pusher of claim 1 wherein: the rear end of the cutter head (2) is fixedly connected with a shaft cylinder (21), and the shaft cylinder (21) penetrates through the front end of the shell (1) and is rotationally connected with the shell (1).

3. The push bench pusher of claim 2 wherein: the rear end of the cutterhead (2) is further provided with a water inlet pipe section II (41) communicated with the circulation cavity (44), the water inlet pipe section II (41) penetrates through the shaft barrel (21), and a water inlet pipe section I (43) is connected with the water inlet pipe section II (41) through a rotary joint (42).

4. The push bench pusher of claim 2 wherein: the outer surface of the shaft cylinder (21) is sleeved with a transmission gear (211), and the transmission gear (211) is fixedly connected with the shaft cylinder (21).

5. A push bench pusher according to claim 3 wherein: a broken pipe section (33) is further arranged between the mud pumping pipe (32) and the valve II (31), and the broken pipe section (33) is fixedly connected to the inner wall of the shell (1).

6. The push bench pusher of claim 5 wherein: the inside of broken pipeline section (33) is installed pivot (331), the one end of pivot (331) is passed broken pipeline section (33) and is stretched out to the outside of broken pipeline section (33), pivot (331) are located the surface mounting stirring leaf (332) in broken pipeline section (33).