CN214616549U

CN214616549U - Earth pressure balance push bench

Info

Publication number: CN214616549U
Application number: CN202120544990.0U
Authority: CN
Inventors: 余江; 朱运峰; 顾岳阳; 朱蕴华; 尤灵芝
Original assignee: Changshu Huacheng Construction Engineering Co ltd
Current assignee: Changshu Huacheng Construction Engineering Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-05
Anticipated expiration: 2031-03-16

Abstract

The application relates to a soil pressure balance push bench which comprises a bench body, a cutter arranged at the end part of the bench body and a bolt conveyor arranged in the bench body, wherein a soil bin is arranged at the end part of the bench body and consists of the circumferential side wall of the bench body and the top wall of the bench body; the cutter head is connected with the top wall of the machine body through a transmission shaft; the organism roof slope sets up to organism roof bottom is to keeping away from the one side slope of blade disc, and the mud discharging mouth with screw conveyer's feed inlet intercommunication is seted up to the bottom of organism roof. The organism roof plays the effect of direction for the earth at organism roof top slides the bottom of organism, so that screw conveyer carries earth, thereby makes earth be difficult for piling up on the body lateral wall, guarantees the discharge efficiency of earth.

Description

Earth pressure balance push bench

Technical Field

The application relates to the field of municipal construction equipment, in particular to a soil pressure balance push bench.

Background

The pipe jacking technology is a trenchless tunneling type pipeline laying construction technology for municipal construction, and has the advantages of low noise, small construction field and the like. And the pipe is pushed into the receiving well from the working well by the aid of a pipe jacking machine and a pushing oil cylinder in the pipe jacking construction, so that the laying of the pipe is completed.

In pipe jacking construction, there are usually three balance theories, namely, an air pressure balance theory, a mud water balance theory and an earth pressure balance theory, and a pipe jacking machine which is constructed according to the earth pressure balance theory is the earth pressure balance pipe jacking machine.

The earth pressure balance push bench comprises a machine body, a cutter head and a screw conveyor, wherein the cutter head is used for tunneling, and the screw conveyor is used for transporting earth formed after tunneling. Generally, water is introduced to a cutter head in the process of pipe jacking construction, so that the water and soil are mixed into pasty slurry, and the soil is conveniently transported.

In a common push bench, a feed inlet of a bolt conveyor is positioned at the bottom of the push bench body, so that soil can smoothly enter the interior of the spiral conveyor. But at push bench during operation, in order to keep soil pressure balance, can have great pressure between organism tip and the earth that the blade disc place for earth is attached easily on the organism lateral wall, and attached earth on the organism lateral wall is difficult for dropping under the effect of self gravity, therefore earth piles up on the organism lateral wall easily, can influence earth exhaust efficiency to a certain extent, influences push bench's work.

SUMMERY OF THE UTILITY MODEL

In order to make earth be difficult for piling up on the organism lateral wall, guarantee the discharge efficiency of earth, this application provides a soil pressure balance push bench.

The application provides an earth pressure balance push bench adopts following technical scheme:

a soil pressure balance push bench comprises a bench body, a cutter arranged at the end part of the bench body and a bolt conveyor arranged in the bench body, wherein a soil bin is arranged at the end part of the bench body and consists of the circumferential side wall of the bench body and the top wall of the bench body; the cutter head is connected with the top wall of the machine body through a transmission shaft; the top wall of the machine body is obliquely arranged, the bottom of the top wall of the machine body inclines to one side far away from the cutter head, and a sludge discharge port communicated with a feed inlet of the spiral conveyor is formed in the bottom of the top wall of the machine body.

Through adopting above-mentioned technical scheme, organism roof slope sets up, and when the pipe pushing jack during operation, earth in the soil storehouse receives the effect of the pressure of the pipe pushing jack the place ahead soil body, can follow organism roof gliding, and the organism roof plays the effect of direction this moment, and the earth at organism roof top slides the bottom of organism to in screw conveyer carries earth, thereby make earth be difficult for piling up on the organism lateral wall, guarantee the discharge efficiency of earth.

Preferably, the spiral blade of the spiral conveyor extends to the interior of the soil bin through the sludge discharge port.

Through adopting above-mentioned technical scheme, the spiral blade extends to inside the soil storehouse to the screw conveyer carries the soil in the soil storehouse, and soil enters into the screw conveyer more easily, thereby guarantees the conveying efficiency of screw conveyer to soil.

Preferably, two guide plates are arranged between the sludge discharge port and the cutter head, and the two guide plates are both positioned below the sludge discharge port and symmetrically distributed on two sides of the sludge discharge port in the vertical direction; one side of the guide plate is connected with the top wall of the machine body, and the other side of the guide plate is connected with the circumferential side wall of the machine body.

Through adopting above-mentioned technical scheme, the deflector can play the guide effect to the soil of soil storehouse bottom, prevents that soil from piling up in the bottom in soil storehouse, guarantees bolt soil from the inside exhaust efficiency in soil storehouse.

Preferably, the guide plate and the side wall of the machine body are arranged in a circular arc transition manner.

Through adopting above-mentioned technical scheme, can promote the deflector to the direction effect of soil, reduce the amount of residue of earth in the soil storehouse.

Preferably, still be provided with the stirring subassembly on the organism roof, the stirring subassembly is including setting up the drive division inside the organism and setting up the stirring blade between organism roof and blade disc, the stirring blade leads to the (mixing) shaft and is connected with the output of drive division.

Through adopting above-mentioned technical scheme, the drive division drives the stirring blade rotation, stirs the inside soil in soil storehouse to carry out the breakage to the clod, promote the flow rate of earth, so that screw conveyer transports earth.

Preferably, the end, far away from the stirring shaft, of the stirring blade at the bottom of the top wall of the machine body is obliquely arranged towards the cutter head.

Through adopting above-mentioned technical scheme, the space in occupying the soil storehouse when promoting the stirring blade operation to the stirring blade can carry out intensive mixing to the soil in the soil storehouse.

Preferably, the rotating plane of the stirring blade is parallel to the top wall of the machine body.

Through adopting above-mentioned technical scheme, the push bench is at the during operation, because earth can exert great pressure to soil storehouse inside, consequently stirring blade's rotation plane is parallel with organism roof for earth is when stirring blade, and the pressure of earth can not all be exerted on stirring blade, thereby reduces the pressure that stirring blade during operation received, guarantees stirring blade's normal work.

Preferably, the stirring assemblies are provided with a plurality of groups, the stirring assemblies are distributed around the transmission shaft, and the stirring assemblies are all positioned above the sludge discharge port.

Through adopting above-mentioned technical scheme, multiunit stirring blade simultaneous working effectively promotes the stirring efficiency to earth to can promote the homogeneity of earth stirring, the screw conveyer of being convenient for carries earth.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the pipe jacking machine works, soil in the soil bin is under the action of pressure of soil in front of the pipe jacking machine and slides downwards along the top wall of the machine body, and the top wall of the machine body plays a role in guiding so that the soil at the top of the top wall of the machine body slides to the bottom of the machine body, so that the soil is conveyed by the screw conveyor, the soil is not easy to accumulate on the side wall of the machine body, and the soil discharge efficiency is ensured;

2. two guide plates are arranged between the sludge discharge port and the cutter head, and the guide plates and the side wall of the machine body are arranged in an arc transition manner, so that the guide plates can guide soil at the bottom of the soil bin, prevent the soil from accumulating at the bottom of the soil bin, and ensure the efficiency of discharging bolt soil from the interior of the soil bin;

3. still be provided with multiunit stirring subassembly on the organism roof, push bench during operation, multiunit stirring subassembly can stir the earth in the soil storehouse simultaneously, carries out abundant breakage to the clod, promotes the flow rate of earth to be convenient for screw conveyer transports earth.

Drawings

FIG. 1 is a schematic structural diagram of an earth pressure balance push bench in the embodiment of the present application;

FIG. 2 is a sectional view showing the structure of the earth pressure balance push bench in the embodiment of the present application;

fig. 3 is a schematic view of the internal structure of the soil bin.

In the drawings, the reference numbers: 1. a body; 11. a top wall; 12. a sludge discharge port; 13. a guide plate; 2. a soil bin; 3. a cutter head; 4. a drive motor; 5. a drive shaft; 6. a stirring assembly; 61. a drive section; 62. a stirring shaft; 63. a stirring blade; 7. a screw conveyor.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a soil pressure balance push bench. Referring to fig. 1 and 2, the earth pressure balance push bench comprises a bench 1, wherein an earth bin 2 is arranged at the end part of the bench 1, and the earth bin 2 consists of a circumferential side wall of the bench 1 and a bench top wall 11; the bin mouth of soil bin 2 is located the tip of organism 1, and the tip of organism 1 is provided with blade disc 3, and 1 inside driving motor 4 that is provided with of organism, transmission shaft 5 are connected with organism roof 11 to transmission shaft 5 and driving motor 4's output are connected, make driving motor 4 can drive blade disc 3 and rotate. Be provided with stirring subassembly 6 on organism roof 11, stirring subassembly 6 can stir the inside earth in soil storehouse 2. Mud discharging port 12 has been seted up to the bottom of organism roof 11, and organism 1 is inside to be provided with screw conveyer 7 to screw conveyer 7's feed inlet and mud discharging port 12 intercommunication, therefore the earth in the soil storehouse 2 can be carried to organism 1 outside by screw conveyer 7.

Referring to fig. 2, the top wall 11 of the machine body is inclined, and the bottom of the top wall 11 of the machine body is inclined to the side far away from the cutter head 3, so that the top wall 11 of the machine body can guide the soil in the soil bin 2, and the soil can smoothly flow to the sludge discharge port 12.

Referring to fig. 2 and 3, the stirring assemblies 6 are provided with a plurality of groups, the groups of stirring assemblies 6 are distributed around the transmission shaft 5, and the groups of stirring assemblies 6 are all positioned above the sludge discharge port 12. Each group of stirring assemblies 6 comprises a driving part 61 arranged inside the machine body 1, the driving part 61 is arranged as a motor, and the motor is fixed on the top wall 11 of the machine body. The stirring shaft 62 is arranged on the machine body top wall 11, and the stirring shaft 62 is vertical to the machine body top wall 11. One end of the stirring shaft 62 is connected with the output end of the motor, and the other end extends to the inside of the soil bin 2 and is provided with a stirring blade 63, so that the motor can drive the stirring blade 63 to rotate, and the soil in the soil bin 2 is stirred.

Referring to fig. 2, the rotation plane of the stirring blade 63 is parallel to the top wall 11 of the machine body, and one end of the stirring blade 63, which is far away from the stirring shaft 62, is inclined toward the cutter head 3, so that the stirring blade 63 can sufficiently stir the image in the soil bin 2.

Referring to fig. 3, two guide plates 13 are further arranged inside the soil bin 2, and the two guide plates 13 are both located below the sludge discharge port 12 and symmetrically distributed on two sides of the sludge discharge port 12 in the vertical direction. One side and the organism roof 11 of deflector 13 are connected, and the opposite side is connected with the circumference lateral wall of organism 1 to all be circular arc transition form setting between deflector 13 and organism roof 11 and the organism 1 circumference lateral wall. The guide plate 13 can guide the soil on the lower side of the sludge discharge port 12, so that the soil can normally enter the sludge discharge port 12.

Referring to fig. 2 and 3, the spiral blade of the spiral conveyor 7 extends to the inside of the soil bin 2 through the mud discharge port 12, so that the soil in the soil bin 2 can directly enter the inside of the spiral conveyor 7 under the action of the blade of the spiral conveyor 7, thereby improving the soil discharge efficiency of the spiral conveyor 7.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a soil pressure balance push bench which characterized in that: the soil bin comprises a machine body (1), a cutter head (3) arranged at the end part of the machine body (1) and a bolt conveyor arranged in the machine body (1), wherein a soil bin (2) is arranged at the end part of the machine body (1), and the soil bin (2) consists of a circumferential side wall of the machine body (1) and a top wall (11) of the machine body; the cutter head (3) is connected with the top wall (11) of the machine body through a transmission shaft (5); the machine body top wall (11) is obliquely arranged, the bottom of the machine body top wall (11) inclines to one side far away from the cutter head (3), and a sludge discharge opening (12) communicated with a feed inlet of the spiral conveyor (7) is formed in the bottom of the machine body top wall (11).

2. The earth pressure balance push bench of claim 1, wherein: the spiral blade of the spiral conveyor (7) extends into the soil bin (2) through the sludge discharge port (12).

3. The earth pressure balance push bench of claim 1, wherein: two guide plates (13) are arranged between the sludge discharge port (12) and the cutter head (3), and the two guide plates (13) are both positioned below the sludge discharge port (12) and symmetrically distributed on two sides of the sludge discharge port (12) in the vertical direction; one side of the guide plate (13) is connected with the top wall (11) of the machine body, and the other side of the guide plate is connected with the circumferential side wall of the machine body (1).

4. The earth pressure balance push bench of claim 3, wherein: the guide plate (13) and the side wall of the machine body (1) are arranged in a circular arc transition shape.

5. The earth pressure balance push bench of claim 1, wherein: still be provided with stirring subassembly (6) on organism roof (11), stirring subassembly (6) are including setting up drive division (61) inside organism (1) and setting up stirring blade (63) between organism roof (11) and blade disc (3), stirring blade (63) lead to (mixing) shaft (62) and are connected with the output of drive division (61).

6. The earth pressure balance push bench of claim 5, wherein: one end of the stirring blade (63) far away from the stirring shaft (62) is obliquely arranged towards the cutter head (3).

7. The earth pressure balance push bench of claim 5, wherein: the rotating plane of the stirring blade (63) is parallel to the top wall (11) of the machine body.

8. The earth pressure balance push bench of claim 5, wherein: the stirring assemblies (6) are provided with a plurality of groups, the stirring assemblies (6) are distributed around the transmission shaft (5), and the stirring assemblies (6) are all positioned above the sludge discharge port (12).