Sludge discharge device of earth pressure balance push bench

Abstract

The utility model discloses a mud discharging device of an earth pressure balance pipe jacking machine, which belongs to the technical field of earth pressure balance pipe jacking machines, and comprises a pipe jacking machine body, the front end of the inner cavity of the pipe jacking machine body is fixedly connected with a lower mud discharging arc-shaped pipe, and the top end of the lower mud discharging arc-shaped pipe is fixedly provided with a servo motor. According to the utility model, the lower mud discharge arc-shaped pipe and the upper mud discharge arc-shaped pipe are assembled into the mud discharge pipeline for conveying mud through the matching of the lower mounting seat, the first screw hole, the upper mounting seat, the first mounting hole and the first bolt, and when the spiral roller needs to be overhauled and replaced, the first bolt can be detached from the upper mounting seat and the lower mounting seat, so that the spiral roller can be conveniently replaced. Therefore, the fixation between the lower sludge discharge arc-shaped pipe and the upper sludge discharge arc-shaped pipe is released, so that the upper sludge discharge arc-shaped pipe is taken down to overhaul or replace the spiral roller in the lower sludge discharge arc-shaped pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of earth pressure balance pipe jacking machine, more particularly to a kind of earth pressure balance pipe jacking machine's sludge discharge device. BACKGROUND

[0002] Earth pressure balance pipe jacking machine is a kind of equipment for underground pipeline construction, and its core principle is to keep the stability of the excavation face by controlling the earth pressure to prevent ground subsidence or uplift. During construction, the main jacking cylinder pushes the equipment forward, while the large cutter head rotates to cut the soil. The cut soil enters the sealed soil bin and mixes with the soil in the screw conveyor, forming a compressed soil with a certain earth pressure. By controlling the amount of soil or jacking speed, the earth pressure in the sealed soil bin can be adjusted to balance with the static earth pressure in front and the groundwater pressure, ensuring the stability of the excavation face.

[0003] After searching, the utility model patent with publication number CN217735493U discloses a kind of earth pressure balance pipe jacking machine's sludge discharge device, including: top pipe machine body, the inner side of top pipe machine body is provided with sludge discharge pipe;The end of sludge discharge pipe is provided with driving motor, and driving motor is provided between sludge discharge pipe and driving motor Extension pipe and connecting arc rod, connecting arc rod is provided with two and is symmetrically fixedly connected to one side of sludge discharge pipe, extension pipe is fixedly connected to the other end of connecting arc rod, and extension pipe is provided on the side of driving motor, and the outer side of extension pipe and connecting arc rod is provided with sliding sleeve;The utility model patent is fixedly connected with connecting arc rod at the end of sludge discharge pipe, one side of connecting arc rod is fixedly connected with extension pipe, and the outer side of connecting arc rod is slidably connected with extension pipe, and the setting of extension pipe can effectively shield connecting arc rod. When maintenance is needed, the sliding sleeve is slid to the upper side of extension pipe to make the connecting arc rod leak out, which facilitates subsequent disassembly and maintenance work, and improves the use effect of sludge discharge pipe.

[0004] However, the above-mentioned patent still has the following shortcomings: although the extension pipe and the sliding sleeve can be used for subsequent maintenance and disassembly, the spiral roller penetrates through the entire sludge discharge pipe, and it is not convenient to take out the spiral roller from the sludge discharge pipe after disassembling the end of the spiral roller, and the practicability is poor. In addition, the mud in the sludge discharge pipe can only rely on gravity to fall out of the mud outlet, which affects the sludge discharge effect. Therefore, we propose a kind of earth pressure balance pipe jacking machine's sludge discharge device. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a kind of earth pressure balance pipe jacking machine's sludge discharge device.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of sludge discharging device of earth pressure balance pipe jacking machine, including pipe jacking machine body, the front end of the inner chamber of pipe jacking machine body is fixedly connected with lower sludge discharging arc pipe, the top of lower sludge discharging arc pipe is fixedly installed with servo motor, the output shaft of servo motor extends to the inner chamber of lower sludge discharging arc pipe and is installed with spiral roller, the top of lower sludge discharging arc pipe is provided with upper sludge discharging arc pipe, the bottom of lower sludge discharging arc pipe is fixedly connected with sludge discharging port, the top of upper sludge discharging arc pipe is provided with blowing mechanism, the both sides of lower sludge discharging arc pipe are respectively fixedly connected with lower mounting seat, a plurality of first screw holes are respectively formed in two lower mounting seats, the both sides of upper sludge discharging arc pipe are respectively fixedly connected with upper mounting seat, a plurality of first mounting holes are respectively formed in two upper mounting seats, the inner chamber of a plurality of first mounting holes is all sleeved with first bolt, and the bottom end of first bolt is threadedly installed to the inner chamber of first screw hole.

[0008] As a preferred scheme of the utility model, the blowing mechanism includes a plurality of blowout ports provided on the top of the upper sludge discharging arc pipe, a blowing tube is fixedly sleeved on the inner side of the top end of each blowout port, a blowing box is fixedly connected to the top end of each blowing tube, a protective shell is fixedly connected to the top surface of the blowing box, a filter screen is sleeved on the top end of the protective shell, a shell cover is threadedly installed on the outer side of the top end of the protective shell, a high-pressure fan is fixedly installed on the top surface of the blowing box and inside the protective shell, and the output end of the high-pressure fan extends into the inner chamber of the blowing box.

[0009] As a preferred scheme of the utility model, the output shaft of the servo motor is fixedly connected with a plug-in seat, a square slot is provided at the end of the plug-in seat, a second mounting hole is formed in the top and bottom of the plug-in seat, a plug-in block is fixedly connected to the end of the rotating shaft of the spiral roller, a second screw hole is formed in the top surface of the plug-in block, the end of the plug-in block is movably sleeved into the inner chamber of the square slot, a second bolt is sleeved in the inner chamber of the second mounting hole, and the middle part of the second bolt is threadedly installed into the inner chamber of the second screw hole.

[0010] As a preferred scheme of the utility model, the plurality of blowout ports are located above the sludge discharging port.

[0011] As a preferred scheme of the utility model, the side surface of the plug-in block is in abutment with the inner wall of the square slot, and the inner diameter of the second mounting hole is equal to the outer diameter of the second bolt.

[0012] As a preferred scheme of the utility model, the side surface of the spiral roller is in abutment with the inner wall of the lower sludge discharging arc pipe and the upper sludge discharging arc pipe.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) The utility model discloses a lower installation seat, first screw hole, upper installation seat, first installation hole and the cooperation of first bolt makes the lower mud discharging arc-shaped pipe and upper mud discharging arc-shaped pipe and is assembled into the mud discharging pipeline for soil delivery, when needing to overhaul and replace the spiral roller, can take off first bolt from upper installation seat and lower installation seat, thereby releasing the fixation between lower mud discharging arc-shaped pipe and upper mud discharging arc-shaped pipe, so as to take down upper mud discharging arc-shaped pipe and overhaul or replace the spiral roller in lower mud discharging arc-shaped pipe.

[0015] (2) The utility model discloses when the soil is discharged from the mud discharging port, utilize high pressure fan to make the blowpipe and blow -off port blow out high pressure wind to the inner chamber of upper mud discharging arc-shaped pipe and lower mud discharging arc-shaped pipe, utilize high pressure wind and blow soil and fall from the mud discharging port smoothly, guarantee soil and fall from lower mud discharging arc-shaped pipe and upper mud discharging arc-shaped pipe smoothly, and the practicality is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole structure schematic diagram of the utility model;

[0017] Figure 2 It is whole structure schematic diagram of lower mud discharging arc-shaped pipe and upper mud discharging arc-shaped pipe of the utility model;

[0018] Figure 3 It is structure explosion drawing of lower mud discharging arc-shaped pipe and upper mud discharging arc-shaped pipe of the utility model;

[0019] Figure 4 It is structure schematic diagram of lower mud discharging arc-shaped pipe of the utility model;

[0020] Figure 5 It is split schematic drawing of protective shell, filter screen, shell cover of the utility model.

[0021] Mark explanation in drawing:

[0022] 1, top pipe machine body;2, lower mud discharging arc-shaped pipe;3, upper mud discharging arc-shaped pipe;4, blow -off mechanism;5, servo motor;6, spiral roller;7, lower installation seat;8, first screw hole;9, upper installation seat;10, first installation hole;11, first bolt;12, blow -off port;13, blowpipe;14, blow -off box;15, high pressure fan;16, protective shell;17, filter screen;18, shell cover;19, mud discharging port;20, plug -in seat;21, square groove;22, second installation hole;23, plug -in block;24, second screw hole;25, second bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the scope of the present application.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense. For example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be connected inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Embodiment:

[0027] Please refer to Figures 1-5 A mud discharging device of a soil pressure balance pipe jacking machine, comprising a pipe jacking machine body 1, a lower mud discharging arc-shaped pipe 2 is fixedly connected to the front end of the inner cavity of the pipe jacking machine body 1, a servo motor 5 is fixedly installed at the top end of the lower mud discharging arc-shaped pipe 2, the output shaft of the servo motor 5 extends to the inner cavity of the lower mud discharging arc-shaped pipe 2 and is provided with a spiral roller 6, an upper mud discharging arc-shaped pipe 3 is arranged at the top of the lower mud discharging arc-shaped pipe 2, a mud discharging port 19 is fixedly connected to the bottom of the lower mud discharging arc-shaped pipe 2, a gas blowing mechanism 4 is arranged at the top of the upper mud discharging arc-shaped pipe 3, lower mounting seats 7 are fixedly connected to the two sides of the lower mud discharging arc-shaped pipe 2 respectively, a plurality of first screw holes 8 are formed in the two lower mounting seats 7 respectively, upper mounting seats 9 are fixedly connected to the two sides of the upper mud discharging arc-shaped pipe 3 respectively, a plurality of first mounting holes 10 are formed in the two upper mounting seats 9 respectively, first bolts 11 are sleeved in the inner cavities of the plurality of first mounting holes 10, and the bottom ends of the first bolts 11 are threadedly installed into the inner cavities of the first screw holes 8.

[0028] In this embodiment, the end of the pipe jacking machine body 1 is provided with a mud inlet, so that the mud excavated by the front part of the pipe jacking machine can enter the lower mud discharge arc pipe 2 and the upper mud discharge arc pipe 3 from the mud inlet.

[0029] Specifically, please refer to Figure 1 , Figure 3 and Figure 5 , the blowing mechanism 4 includes a plurality of blowing ports 12 arranged at the top of the upper mud discharge arc pipe 3, the inner side of the top end of each blowing port 12 is fixedly sleeved with a blowing pipe 13, the top end of each blowing pipe 13 is fixedly connected with a blowing box 14, the top surface of the blowing box 14 is fixedly connected with a protective shell 16, the top end of the protective shell 16 is sleeved with a filter screen 17, the outer side of the top end of the protective shell 16 is threadedly installed with a shell cover 18, the top surface of the blowing box 14 and located inside the protective shell 16 is fixedly installed with a high-pressure fan 15, and the output end of the high-pressure fan 15 extends to the inner cavity of the blowing box 14.

[0030] In this embodiment, the filter screen 17 is clamped by the cooperation of the protective shell 16 and the shell cover 18, and the dust in the air is filtered by the filter screen 17 to prevent the dust from entering the high-pressure fan 15.

[0031] Specifically, please refer to Figure 3 , the output shaft of the servo motor 5 is fixedly connected with a plug-in seat 20, the end of the plug-in seat 20 is provided with a square groove 21, the top and bottom of the plug-in seat 20 are both provided with a second mounting hole 22, the end of the screw roller 6 rotating shaft is fixedly connected with a plug-in block 23, the top surface of the plug-in block 23 is provided with a second screw hole 24, the end of the plug-in block 23 is movably sleeved into the inner cavity of the square groove 21, the inner cavity of the second mounting hole 22 is sleeved with a second screw 25, and the middle part of the second screw 25 is threadedly installed into the inner cavity of the second screw hole 24.

[0032] In this embodiment, the screw roller 6 and the output shaft of the servo motor 5 are connected by the cooperation of the plug-in seat 20, the plug-in block 23 and the second screw 25.

[0033] Specifically, please refer to Figure 3 , the plurality of blowing ports 12 are located above the mud discharge port 19.

[0034] In this embodiment, the high-pressure wind blown downward by the blowing port 12 can discharge the mud from the mud discharge port 19.

[0035] Specifically, please refer to Figure 3 , the side surface of the plug-in block 23 and the inner wall of the square groove 21 are in close contact, and the inner diameter of the second mounting hole 22 is equal to the outer diameter of the second screw 25.

[0036] In the embodiment, the stability of the insertion block 23 being fitted into the inner cavity of the square groove 21 is ensured, and the stability of the second bolt 25 being inserted into the inner cavity of the second mounting hole 22 is ensured, so that the firmness of the spiral roller 6 being mounted on the insertion seat 20 is ensured.

[0037] Specifically, please refer to Figure 2 and Figure 3 the side surface of the spiral roller 6 is in close contact with the inner wall of the lower mud discharging arc-shaped pipe 2 and the upper mud discharging arc-shaped pipe 3.

[0038] In the embodiment, the rotation of the spiral roller 6 can drive the soil to move smoothly in the lower mud discharging arc-shaped pipe 2 and the upper mud discharging arc-shaped pipe 3.

[0039] Working principle: in use, first, the servo motor 5 drives the spiral roller 6 to rotate, and at the same time, the pipe jacking machine body 1 is pushed forward, the soil enters the inner cavities of the lower mud discharging arc-shaped pipe 2 and the upper mud discharging arc-shaped pipe 3 from the mud inlet at the front of the pipe jacking machine body 1, so as to be transported by the rotating spiral roller 6, when the soil moves above the mud discharging port 19, the soil falls from the mud discharging port 19 and falls into the soil conveying pump below the mud discharging port 19, then when the soil moves above the mud discharging port 19, the high-pressure fan 15 is started to blow high-pressure air into the inner cavity of the air blowing box 14, and the high-pressure air is blown from the air blowing pipe 13 and the air blowing port 12 to the inner cavities of the lower mud discharging arc-shaped pipe 2 and the upper mud discharging arc-shaped pipe 3, so as to blow the soil in the inner cavities of the lower mud discharging arc-shaped pipe 2 and the upper mud discharging arc-shaped pipe 3 to the inner cavity of the mud discharging port 19, thereby assisting the soil transported in the lower mud discharging arc-shaped pipe 2 and the upper mud discharging arc-shaped pipe 3 to fall, then when the spiral roller 6 in the inner cavities of the lower mud discharging arc-shaped pipe 2 and the upper mud discharging arc-shaped pipe 3 needs to be overhauled or replaced, the first bolt 11 is disassembled from the lower mounting seat 7 and the upper mounting seat 9, so as to release the fixation between the lower mud discharging arc-shaped pipe 2 and the upper mud discharging arc-shaped pipe 3, the upper mud discharging arc-shaped pipe 3 is disassembled from the lower mud discharging arc-shaped pipe 2, and finally the second bolt 25 is disassembled from the insertion seat 20, so as to release the fixation between the insertion seat 20 and the insertion block 23, and then the spiral roller 6 is disassembled from the inner cavity of the lower mud discharging arc-shaped pipe 2 for replacement.

[0040] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A sludge removal device for an earth pressure balance pipe jacking machine, comprising the pipe jacking machine body (1), characterized in that: The front end of the inner cavity of the pipe jacking machine body (1) is fixedly connected to a lower mud discharge arc pipe (2). A servo motor (5) is fixedly installed at the top end of the lower mud discharge arc pipe (2). The output shaft of the servo motor (5) extends into the inner cavity of the lower mud discharge arc pipe (2) and is equipped with a spiral roller (6). An upper mud discharge arc pipe (3) is provided at the top of the lower mud discharge arc pipe (2). A mud discharge port (19) is fixedly connected to the bottom of the lower mud discharge arc pipe (2). An air blowing mechanism (4) is provided at the top of the upper mud discharge arc pipe (3). The lower mud discharge arc pipe (2) is fixedly connected to two lower mounting seats (7) respectively. Multiple first screw holes (8) are opened on the two lower mounting seats (7). The upper mud discharge arc pipe (3) is fixedly connected to two upper mounting seats (9) respectively. Multiple first mounting holes (10) are opened on the two upper mounting seats (9). A first bolt (11) is sleeved in the inner cavity of the multiple first mounting holes (10). The bottom end of the first bolt (11) is threaded into the inner cavity of the first screw hole (8).

2. The sludge removal device for an earth pressure balance pipe jacking machine according to claim 1, characterized in that: The blowing mechanism (4) includes multiple air outlets (12) set on the top of the upper mud discharge arc pipe (3). Air pipes (13) are fixedly sleeved on the inner side of the top of the multiple air outlets (12). Air boxes (14) are fixedly connected to the top of the multiple air pipes (13). A protective shell (16) is fixedly connected to the top surface of the air box (14). A filter screen (17) is sleeved on the top of the protective shell (16). A shell cover (18) is threaded on the outer side of the top of the protective shell (16). A high-pressure blower (15) is fixedly installed on the top surface of the air box (14) and inside the protective shell (16). The output end of the high-pressure blower (15) extends into the inner cavity of the air box (14).

3. The sludge removal device for an earth pressure balance pipe jacking machine according to claim 1, characterized in that: The output shaft of the servo motor (5) is fixedly connected to a connector (20). The end of the connector (20) is provided with a square groove (21). The top and bottom of the connector (20) are provided with second mounting holes (22). The end of the rotating shaft of the spiral roller (6) is fixedly connected to a connector block (23). The top surface of the connector block (23) is provided with a second screw hole (24). The end of the connector block (23) is movably sleeved into the inner cavity of the square groove (21). The inner cavity of the second mounting hole (22) is fitted with a second bolt (25). The middle thread of the second bolt (25) is installed into the inner cavity of the second screw hole (24).

4. The sludge removal device for an earth pressure balance pipe jacking machine according to claim 2, characterized in that: Multiple air inlets (12) are located above the mud discharge inlet (19).

5. The sludge removal device for an earth pressure balance pipe jacking machine according to claim 3, characterized in that: The side of the plug block (23) fits against the inner wall of the square groove (21), and the inner diameter of the second mounting hole (22) is equal to the outer diameter of the second bolt (25).

6. The sludge removal device for an earth pressure balance pipe jacking machine according to claim 1, characterized in that: The side of the spiral roller (6) is in contact with the inner wall of the lower mud discharge arc pipe (2) and the upper mud discharge arc pipe (3).

Images