CN219754527U - Mud-water balance push bench - Google Patents

Abstract

The utility model discloses a mud-water balance pipe jacking machine, which comprises a shell, wherein a cutting cutter disc is rotatably arranged at the front end of the shell, a plurality of fixing notches are formed in the cutting cutter disc, a plurality of soil crushing cutters are arranged at the fixing notches, a flushing structure is arranged in the shell, the flushing structure comprises an annular fixing cavity, the fixing cavity is slidably connected to the upper end of the shell through a connecting rod, a water inlet structure is further arranged on the fixing cavity, the flushing structure further comprises a flushing pipe, a flushing head is arranged on the flushing pipe, the flushing head corresponds to a gap between adjacent soil crushing cutters, the lower end of the flushing pipe is slidably connected to a transmission structure, an annular cavity is rotatably connected to one side surface of the fixing cavity, which is close to the cutting cutter disc, and the annular cavity is communicated with the flushing pipes. The flushing structure can move, so that the flushing head extends into the cutting cutterhead, the front blade of the cutting cutterhead is conveniently flushed, the blade is guaranteed to be flushed well, mud cake is prevented from being formed by the blade, and the working efficiency of the push bench is guaranteed.

Description

Mud-water balance push bench

Technical Field

The utility model relates to the technical field of push bench, in particular to a head structure of a mud-water balance push bench.

Background

The pipe jacking construction is a construction method of underground pipelines developed after shield construction, is a pipeline burying construction technology without or with less excavation, and is implemented by jacking the pipelines into the soil according to the designed gradient by overcoming the friction force of the pipelines and surrounding soil by means of jacking force generated by a pipe jacking machine in a working pit, transporting away the earthwork and balancing the pipe jacking device by soil. The head structure of the existing mud-water balance pipe jacking machine generally comprises a cutting cutter head, soil is cut by the cutting cutter head, and the cut soil enters the pipe jacking machine through a mud inlet and outlet hole and is discharged by a spiral conveying structure in the pipe jacking machine. However, when the cutting cutterhead excavates clay strata, mud cakes are easy to form, and after the cutterhead forms mud cakes, the tunneling efficiency is seriously affected. The prior Chinese patent of 202222778899.2 discloses a cutting cutterhead for a mud-water balance rock pipe jacking machine, wherein a flushing head is arranged at the rear part of the cutterhead to flush the cutterhead, but the flushing head is fixed in structure and faces the rear part of the cutterhead, so that the flushing degree of main cutting blades on the front surface of the cutterhead is lower, and the technical scheme for solving the technical problem that the cutterhead is mud cake is still to be improved.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides the mud water balance push bench with the structure with good mud flushing effect on the cutting knife disc.

In order to achieve the purpose, the muddy water balance push bench provided by the utility model adopts the following technical scheme:

the utility model provides a mud-water balance push bench, includes the casing, and the casing front end rotates and is provided with the cutting blade disc, the cutting blade disc is including the drill disc that the center was laid, is provided with the toper and bores the sword on the drill disc, be provided with a plurality of fixed breach on the cutting blade disc, a plurality of fixed breach evenly lay along cutting blade disc center circumference, fixed breach department is provided with a plurality of hack sword, and a plurality of hack sword interval are laid, be provided with the flushing structure in the casing, the flushing structure includes annular fixed chamber, and the transmission structure of cutting blade disc passes fixed chamber, fixed chamber pass through connecting rod sliding connection in casing upper end, the slip direction is casing length direction, still is provided with water inlet structure on the fixed chamber, the flushing structure still includes the flushing pipe, is provided with the washing head on the flushing pipe, and the space between the washing head corresponds adjacent hack sword, flushing pipe lower extreme sliding connection in transmission structure, the slip direction is casing length direction, a side that the fixed chamber is close to the cutting blade disc rotates and is connected with annular chamber, annular chamber intercommunication has a plurality of flushing pipes.

The utility model relates to a further improvement of a mud-water balance pipe jacking machine, which is characterized in that a plurality of flushing heads are arranged, and the plurality of flushing heads are in one-to-one correspondence with gaps between a plurality of adjacent soil crushing cutters.

The utility model relates to a further improvement of a mud-water balance pipe jacking machine, which is characterized in that a fixing rod is arranged at the upper end of a shell downwards, a telescopic cylinder is arranged between the fixing rod and a connecting rod, the upper end of the connecting rod comprises a T-shaped part, and a sliding groove matched with the T-shaped part is arranged on the shell.

The utility model relates to a further improvement of a mud-water balance pipe jacking machine, which is characterized in that the lower end of a flushing pipe is also T-shaped, and a second sliding groove which is matched with the flushing pipe is arranged on a transmission structure.

The utility model relates to a further improvement of a mud-water balance pipe jacking machine, which is characterized in that a soil crushing cutter comprises a cutter seat and a cutter blade, wherein the cutter seat is fixedly connected to one surface of a cutting cutter disc, which is close to a shell, and the cutter blade penetrates through a fixing notch and extends out of the cutting cutter disc.

The utility model relates to a further improvement of a mud-water balance pipe pushing jack, which is characterized in that a plurality of mud inlets and outlets are arranged between adjacent fixing notches.

Compared with the prior art, the utility model has the beneficial effects that:

the flushing structure can move, so that the flushing head extends into the cutting cutterhead, the front blade of the cutting cutterhead is conveniently flushed, the blade is guaranteed to be flushed well, mud cake is prevented from being formed by the blade, and the working efficiency of the push bench is guaranteed.

Drawings

FIG. 1 is a schematic elevational view of a cutter disc of the present utility model;

FIG. 2 is a schematic side view of a cutter head according to the present utility model;

in the figure: the device comprises a cutting cutterhead 1, a drilling disc 2, a fixed notch 3, a soil breaking cutter 4, a fixed cavity 5, a transmission structure 6, a connecting rod 7, a water inlet structure 8, a flushing pipe 9, an annular cavity 10, a fixed plate 11, a telescopic cylinder 12 and a slurry inlet and outlet 13.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, the mud-water balance pipe jacking machine comprises a shell, wherein a cutting cutterhead 1 is rotatably arranged at the front end of the shell, and specifically, the cutting cutterhead is driven to rotate by a transmission structure 6. The cutting cutterhead comprises a drilling disc 2 which is arranged in the center, and conical drilling cutters are arranged on the drilling disc, and the structure is a conventional structure of the existing mud-water balance pipe jacking machine. Further, be provided with a plurality of fixed breach 3 on the cutting blade disc, a plurality of fixed breach evenly lay along cutting blade disc central circumference, and fixed breach department is provided with a plurality of hack sword 4, and a plurality of hack sword intervals are laid, are provided with in the casing and wash the structure, and specific, wash the structure and include annular fixed chamber 5, and fixed chamber is passed to the transmission structure 6 of cutting blade disc, and fixed chamber and transmission structure lay with one heart, and fixed chamber passes through connecting rod 7 sliding connection in the casing upper end, and slip direction is casing length direction. The number of links may be provided in plural. The fixed cavity is also provided with a water inlet structure 8 which can be an existing pumping-in water inlet mode structure. The flushing structure also comprises a flushing pipe 9, and a plurality of flushing pipes are arranged and correspond to the number of the fixed notches. Be provided with the washing head on the wash pipe, the washing head correspond to the space between the adjacent hack sword, wash pipe lower extreme sliding connection in transmission structure, slip direction be casing length direction, and one side that the fixed chamber is close to the cutting blade disc rotates and is connected with annular chamber 10, rotates the connected mode and passes through sealed bearing realization, and annular chamber intercommunication has a plurality of wash pipes.

Further, the flushing heads are provided with a plurality of flushing heads which are in one-to-one correspondence with gaps between a plurality of adjacent soil crushing cutters.

Further, the upper end of the shell is provided with a fixing plate 11 downwards, a telescopic cylinder 12 is arranged between the fixing plate and the connecting rod, the upper end of the connecting rod comprises a T-shaped part, and a sliding groove matched with the T-shaped part is formed in the shell. The lower end of the flushing pipe is also T-shaped, and a second sliding groove which is matched with the flushing pipe is arranged on the transmission structure.

Further, the soil breaking knife comprises a knife holder and a knife blade, the knife holder is fixedly connected to one surface of the cutting knife disc, which is close to the shell, and the knife blade penetrates through the fixing notch and extends out of the cutting knife disc. A mud inlet and outlet 13 is also arranged between the adjacent fixing gaps.

The working principle of the utility model is as follows: the cutting blade disc rotates and cuts earth, at this moment, the flushing pipe rotates along with transmission structure, guarantee that the clearance between flushing head and the adjacent hack sword of flushing pipe is in same height, can not produce the skew, when the blade disc mud cake, stop cutting blade disc rotation, the shrink of telescopic cylinder, at this moment, flushing pipe and flushing head are to cutting blade disc one side removal for the flushing head stretches out the blade disc, the blade disc in the opposite side, the water inlet structure intakes and realizes the spraying of flushing head, and then realizes the mud that dashes of outside blade disc blade, guarantees better mud effect, and then guarantees push bench's work efficiency.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a balanced push bench of muddy water which characterized in that: including the casing, the casing front end rotates and is provided with the cutting blade disc, the cutting blade disc includes the drill plate that the center was laid, is provided with the toper brill sword on the drill plate, be provided with a plurality of fixed breach on the cutting blade disc, a plurality of fixed breach evenly lay along cutting blade disc center circumference, fixed breach department is provided with a plurality of hack sword, and a plurality of hack sword interval are laid, be provided with the flushing structure in the casing, the flushing structure includes annular fixed chamber, the transmission structure of cutting blade disc passes fixed chamber, fixed chamber pass through connecting rod sliding connection in the casing upper end, the slip direction is casing length direction, still is provided with water inlet structure on the fixed chamber, the flushing structure still includes the wash pipe, is provided with the washing head on the wash pipe, the space between the washing head corresponds adjacent hack sword, wash pipe lower extreme sliding connection in transmission structure, the slip direction is casing length direction, one side rotation that the fixed chamber is close to the cutting blade disc is connected with the annular chamber, and the annular chamber communicates has a plurality of wash pipes.

2. The mud-water balanced push bench according to claim 1, wherein: the flushing heads are provided with a plurality of flushing heads which are in one-to-one correspondence with gaps between a plurality of adjacent soil crushing cutters.

3. The mud-water balanced push bench according to claim 2, wherein: the upper end of the shell is provided with a fixing plate downwards, a telescopic cylinder is arranged between the fixing plate and the connecting rod, the upper end of the connecting rod comprises a T-shaped part, and a sliding groove matched with the T-shaped part is formed in the shell.

4. A mud-water balanced push bench according to claim 3, wherein: the lower end of the flushing pipe is also T-shaped, and a second sliding groove which is matched with the flushing pipe is arranged on the transmission structure.

5. The mud-water balanced push bench according to claim 1, wherein: the soil breaking knife comprises a knife holder and a blade, the knife holder is fixedly connected to one surface, close to the shell, of the cutting knife disc, and the blade penetrates through the fixing notch and extends out of the cutting knife disc.

6. The mud-water balanced push bench according to claim 5, wherein: and a mud inlet and a mud outlet are also arranged between the adjacent fixing gaps.