CN220726289U - Pipe pushing jack machine head for complex geological condition pipeline construction - Google Patents

Abstract

The utility model relates to a pipe jacking machine head for complex geological condition pipeline construction, which comprises a machine head shell, wherein a central drilling tool bit is fixedly arranged in the center of the outer end face of the machine head shell, a plurality of detachable crushing tool bit assemblies are uniformly distributed on the circumference of the outer end face of the machine head shell, a plurality of movable tool bit assemblies are uniformly distributed on the circumference of the outer end face of the machine head shell, the detachable crushing tool bit assemblies and the movable tool bit assemblies are alternately arranged, and a plurality of edge tool bit assemblies are uniformly distributed on the circumference of the edge of the outer end face of the machine head shell. The detachable mounting mode is adopted for the easy-to-wear cutter head, so that the cutter head can be independently replaced and maintained, the cost is saved, the movable cutter head assembly is further arranged, the phenomenon that the cutter head is locked can be avoided, and the edge cutter head assembly expands the functions of the cutter head.

Description

Pipe pushing jack machine head for complex geological condition pipeline construction

Technical Field

The utility model relates to the technical field of tunneling equipment, in particular to a pipe jacking machine head for complex geological condition pipeline construction.

Background

The pipe jacking construction is a non-excavation construction method, and is a pipeline buried construction technology with no excavation or little excavation. The pipe jacking construction is to overcome the friction force between the pipeline and the surrounding soil by means of the jacking equipment in the working pit, jack the pipeline into the soil according to the designed gradient and transport away the earth. After one pipe is pushed into the soil layer, a second pipe is pushed into the soil layer. The principle is that by means of the thrust of the main top oil cylinder, the pipeline, the relay and the like, a tool pipe or a heading machine is pushed from the working pit to the receiving pit through the soil layer to be lifted, so that when the pipe jacking machine is used for construction, the machine head excavation is an important link.

At present, most of tool bits on the head of the pipe pushing jack adopt a structure integrated with the tool bit, once the tool bit is worn, the overall replacement cost is higher, the tool bit is fixed in position, and the phenomenon of locking easily occurs in the tunneling process, so that tunneling operation is affected.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provides a pipe jacking machine head for pipeline construction under complex geological conditions.

The utility model adopts the following technical scheme to realize the aim:

the utility model provides a push bench aircraft nose for complicated geological conditions pipeline construction, includes the aircraft nose casing, and the center drilling tool bit has set firmly at the outer terminal surface center of aircraft nose casing, and the outer terminal surface circumference equipartition of aircraft nose casing has a plurality of detachable crushing tool bit subassemblies and circumference equipartition to have a plurality of movable tool bit subassemblies, can dismantle crushing tool bit subassemblies, movable tool bit subassembly and arrange in turn, and the outer terminal surface edge circumference equipartition of aircraft nose casing has a plurality of edge tool bit subassemblies.

The central drilling tool bit is conical structure, is equipped with a plurality of reinforcement protruding on the outer wall of central drilling tool bit.

Each detachable smashing cutter head assembly comprises an inverted T-shaped fixing seat, a cutter head mounting hole penetrates through a center boss of the inverted T-shaped fixing seat, smashing cutter heads are rotatably mounted in the cutter head mounting holes, a mounting groove is formed in the outer end face of the machine head shell, supporting plates are arranged at the inner ends of two side walls of each mounting groove, corresponding to each detachable smashing cutter head assembly, of the two side walls of each mounting groove, and two side bottom plates of the inverted T-shaped fixing seat are detachably mounted on the corresponding supporting plates through first fastening bolts.

Every movable tool bit subassembly all is equipped with movable tool bit including being a plurality of slider that radial distributes, slider top, and the outer terminal surface of aircraft nose casing corresponds every movable tool bit subassembly's slider all is equipped with a spout, is equipped with the slide on the spout both sides wall, and the symmetry is equipped with spacing slider on the both sides wall of slider, and spacing slider slidable mounting is in the slide that the spout corresponds.

Each edge tool bit assembly comprises a tool bit plate, edge tool bits are arranged at the outer edges of the tool bit plates, accommodating grooves are formed in the outer end faces of the machine head shell, corresponding to each movable tool bit assembly, of the tool bit plates, and the tool bit plates are detachably mounted in the corresponding accommodating grooves through second fastening bolts.

The beneficial effects of the utility model are as follows: the detachable mounting mode is adopted for the easy-to-wear cutter head, so that the cutter head can be independently replaced and maintained, the cost is saved, the movable cutter head assembly is further arranged, the phenomenon that the cutter head is locked can be avoided, and the edge cutter head assembly expands the functions of the cutter head.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

in the figure: 1-a handpiece housing; 2-a central drilling head; 3-a detachable shredder head assembly; 4-a movable cutter head assembly; 5-edge tool bit assembly; 6-strengthening the protrusion; 7-a first fastening bolt; 8-a chute; 9-a second fastening bolt;

31-an inverted T-shaped fixing seat; 32-bit mounting holes; 33-crushing cutter heads;

41-a slider; 42-movable cutter head;

51-a cutter head plate; 52-edge tool bit;

the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

the utility model provides a push bench aircraft nose for complicated geological conditions pipeline construction, as shown in fig. 1, includes aircraft nose casing 1, center drilling tool bit 2, can dismantle crushing tool bit subassembly 3, activity tool bit subassembly 4, edge tool bit subassembly 5.

The center of the outer end face of the machine head shell 1 is fixedly provided with a center drilling tool bit 2, and the center drilling tool bit 2 is used for drilling in the process of jacking and approaching the pipe jacking machine.

The central drilling tool bit 2 is of a conical structure, and a plurality of strengthening bulges 6 are arranged on the outer wall of the central drilling tool bit 2. The structure is more beneficial to drilling operation, the reinforcing bulge 6 increases friction force, and the reinforcing effect on the center drilling bit 2 is also achieved.

The circumference of the outer end surface of the machine head shell 1 is uniformly provided with a plurality of detachable smashing cutter head assemblies 3, the circumference is uniformly provided with a plurality of movable cutter head assemblies 4, and the detachable smashing cutter head assemblies 3 and the movable cutter head assemblies 4 are alternately arranged.

Each detachable smashing cutter head assembly 3 comprises an inverted T-shaped fixing seat 31, a cutter head mounting hole 32 penetrates through a center boss of the inverted T-shaped fixing seat 31, smashing cutter heads 33 are rotatably mounted in the cutter head mounting holes 32, a mounting groove is formed in the outer end face of the machine head shell 1, supporting plates are arranged at the inner ends of two side walls of the mounting groove, corresponding to each detachable smashing cutter head assembly 3, of the two side walls of the mounting groove, and two side bottom plates of the inverted T-shaped fixing seat 31 are detachably mounted on the corresponding supporting plates through first fastening bolts 7.

Through seting up the mounting groove at aircraft nose casing 1 terminal surface to can dismantle the installation with the backup pad on the mounting groove lateral wall reverse T shape fixing base 31, be convenient for change the dismantlement and smash tool bit subassembly 3, because can dismantle and smash tool bit subassembly 3 when carrying out complicated geology drilling jack-in, contact rock or other rubble structures, be the part that is most easily suffered to wearing and tearing, if with aircraft nose casing 1 adoption overall structure, need overall replacement, the cost is higher, consequently the design is detachable mode, is convenient for change alone, saves the cost.

Each movable cutter head assembly 4 comprises a plurality of sliding blocks 41 which are distributed radially, movable cutter heads 42 are arranged at the tops of the sliding blocks 41, a sliding groove 8 is formed in the outer end face of the machine head shell 1, corresponding to the sliding blocks 41 of each movable cutter head assembly 4, sliding ways are formed in the two side walls of the sliding groove 8, limiting sliding blocks are symmetrically arranged on the two side walls of the sliding blocks 41, and the limiting sliding blocks are slidably mounted in the sliding ways corresponding to the sliding grooves 8.

The movable cutter head assembly 4 is arranged to avoid the phenomenon of locking of the drill bit, because the sliding block 41 can slide in the sliding groove 8, the position of the movable cutter head 42 is not fixed, and the phenomenon of locking can be avoided.

The movable cutter head 42 is of a concave structure, so that not only can the crushing strength be increased, but also the movable cutter head 42 can be fixed by a screw through a central groove, and the detachable installation can be realized.

A plurality of edge cutter head components 5 are uniformly distributed on the periphery of the outer end surface of the machine head shell 1.

Each edge tool bit assembly 5 comprises a tool bit plate 51, edge tool bits 52 are arranged at the outer edges of the tool bit plates 51, accommodating grooves are formed in the outer end faces of the machine head shell 1, corresponding to each movable tool bit assembly 4, and the tool bit plates 51 are detachably mounted in the corresponding accommodating grooves through second fastening bolts 9.

The edge tool bit assembly 5 expands the oblique cutting function and can be detachably installed.

The edge tool bit 52 is of a saw tooth configuration.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.

Claims (7)

1. The utility model provides a push bench aircraft nose for complicated geological conditions pipeline construction, its characterized in that, including aircraft nose casing (1), center drilling tool bit (2) have been set firmly in the outer terminal surface center of aircraft nose casing (1), and the outer terminal surface circumference equipartition of aircraft nose casing (1) has a plurality of dismantlement to smash tool bit subassembly (3) and circumference equipartition to have a plurality of movable tool bit subassemblies (4), can dismantle and smash tool bit subassembly (3), movable tool bit subassembly (4) alternate arrangement, and the outer terminal surface circumference equipartition of aircraft nose casing (1) has a plurality of edge tool bit subassemblies (5).

2. The pipe pushing jack head for complex geological condition pipe construction according to claim 1 is characterized in that the central drilling tool bit (2) is of a conical structure, and a plurality of strengthening bulges (6) are arranged on the outer wall of the central drilling tool bit (2).

3. The pipe pushing jack head for complex geological condition pipe construction according to claim 2, wherein each detachable smashing cutter head assembly (3) comprises an inverted T-shaped fixing seat (31), a cutter head mounting hole (32) is formed in the center boss of the inverted T-shaped fixing seat (31) in a penetrating mode, smashing cutter heads (33) are rotatably mounted in the cutter head mounting hole (32), a mounting groove is formed in the outer end face of the head housing (1) corresponding to each detachable smashing cutter head assembly (3), supporting plates are arranged at the inner ends of two side walls of the mounting groove, and base plates on two sides of the inverted T-shaped fixing seat (31) are detachably mounted on the corresponding supporting plates through first fastening bolts (7).

4. A push bench head for construction of complicated geological condition pipelines according to claim 3, characterized in that each movable cutter head assembly (4) comprises a plurality of radially distributed sliding blocks (41), movable cutter heads (42) are arranged at the tops of the sliding blocks (41), a sliding groove (8) is formed in the outer end face of the head housing (1) corresponding to the sliding blocks (41) of each movable cutter head assembly (4), sliding ways are formed in two side walls of the sliding groove (8), limiting sliding blocks are symmetrically arranged on two side walls of the sliding blocks (41), and the limiting sliding blocks are slidably mounted in the corresponding sliding ways of the sliding grooves (8).

5. The push bench head for complex geological condition pipe construction as set forth in claim 4, wherein the movable cutter head (42) has a concave structure.

6. The pipe pushing jack head for complex geological condition pipe construction according to claim 5, wherein each edge tool bit assembly (5) comprises a tool bit plate (51), edge tool bits (52) are arranged at the outer edges of the tool bit plates (51), accommodating grooves are formed in the outer end faces of the head shell (1) corresponding to each movable tool bit assembly (4), and the tool bit plates (51) are detachably mounted in the corresponding accommodating grooves through second fastening bolts (9).

7. The push bench head for complex geological condition pipe construction of claim 6, wherein the edge tool bit (52) has a zigzag structure.