CN112377199A

CN112377199A - Top shield machine

Info

Publication number: CN112377199A
Application number: CN202011256060.1A
Authority: CN
Inventors: 杨雪松; 胡成
Original assignee: Yangzhou Earth Dragon Machinery Co ltd
Current assignee: Yangzhou Earth Dragon Machinery Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-02-19

Abstract

The invention provides a top shield machine which comprises a rock breaking device, a middle shield and a tail shield which are sequentially arranged, wherein a propulsion oil cylinder is arranged between the middle shield and the tail shield, a conversion ring which is axially and movably connected with the tail shield is arranged in the tail shield, the front end of the conversion ring is abutted against the output end of the propulsion oil cylinder, the rear end of the conversion ring is abutted against a duct piece, and a main top oil cylinder is arranged at the tail part of the duct piece. According to the top shield machine provided by the invention, the conversion from the top pipe to the shield in the construction process is realized through the conversion ring, namely the top pipe can be quickly switched to the shield after the top pipe is finished, so that the construction difficulty and risk are reduced, the top shield machine has the advantages of both the top pipe machine and the shield machine, the structure is simple, and the top shield machine is suitable for popularization.

Description

Top shield machine

Technical Field

The invention relates to the technical field of push bench and shield tunneling machine, in particular to a top shield tunneling machine.

Background

In the non-excavation field of the market at present, three construction methods, namely a shield method, a pipe jacking method and a horizontal directional drilling method are generally adopted. The pipe jacking is that a hydraulic system pushes a pipe joint to move forward in a working well, and the shield is that the hydraulic system pushes a machine forward at the rear part of the machine, and pipe pieces are assembled at the rear part of the machine. Both of these methods have their own advantages and their respective disadvantages.

The push bench has the advantages of small size and small size, and a plurality of devices are integrated in the small size of the push bench. The construction of the jacking pipe is rapid, economic, but the construction distance is short and the disturbance to the stratum is large. The shield machine has the advantages of small turning radius, flexibility, long construction distance, small interference on stratum, low speed and high price.

Therefore, in order to overcome the defects of the prior art, a top shield machine needs to be designed to solve the above problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a top shield machine.

In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: the utility model provides a top shield machine, is including the broken rock equipment, well shield and the tail shield that set gradually, well shield with be equipped with thrust cylinder between the tail shield, be equipped with in the tail shield with tail shield axial swing joint's change-over ring, change-over ring the front end with thrust cylinder's output offsets, change-over ring's rear end and section of jurisdiction offset, the section of jurisdiction afterbody is equipped with main top hydro-cylinder.

The preferable technical scheme is as follows: the rock breaking equipment is connected with the middle shield through a hinged oil cylinder.

The preferable technical scheme is as follows: the outer peripheral wall of the conversion ring is provided with a plurality of groups of annular insertion sheet structures arranged forwards along the axis direction.

The preferable technical scheme is as follows: the interior perisporium of tail shield is equipped with the cyclic annular slot structure that a plurality of groups set up towards the back along the axis direction, cyclic annular slot structure with cyclic annular inserted sheet structure agrees with.

The preferable technical scheme is as follows: and an annular reinforcing structure is arranged on the inner peripheral wall of the tail shield on the front side of the annular slot structure.

Due to the application of the technical scheme, the invention has the beneficial effects that:

1. the top shield machine provided by the invention can carry out long-distance propulsion and can carry out small-radius turning and three-dimensional turning;

2. the top shield machine provided by the invention has higher tunneling speed, and can carry out pipe jacking, so that the pipe can be transported in a pit during pipe construction without being assembled by a segment assembling machine, and the tunneling speed is obviously increased. Half of the pipe jacking and half of the shield can save at least one fourth of the construction period than the simple shield;

3. the top shield machine has smaller starting well and receiving well, and can carry out subsection starting.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is an enlarged view of the invention at A.

In the above figures, 1, a rock breaking device; 2. middle shield; 3. a tail shield; 4. a switching ring; 5. an annular tab structure; 6. an annular slot structure; 7. an annular reinforcing structure; 8. a duct piece; 9. and a propulsion oil cylinder.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1-2. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the present invention is usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1, the top shield machine proposed by the present invention comprises a rock breaking device 1 in a conventional pipe pushing machine and a middle shield 2 and a tail shield 3 in a conventional shield machine.

The rock breaking equipment 1, the middle shield 2 and the tail shield 3 are arranged in sequence. The rock breaking equipment 1 is connected with the middle shield 2 through a hinged oil cylinder (not shown in the figure), and a propulsion oil cylinder 9 is arranged between the middle shield 2 and the tail shield 3. The tail shield 3 is internally provided with a conversion ring 4 which is axially and movably connected with the tail shield 3, the front end of the conversion ring 4 is abutted against the output end of the propulsion oil cylinder 9, the rear end of the conversion ring 4 is abutted against a segment 8, and the tail part of the segment 8 is provided with a main jacking oil cylinder (not shown in the figure).

Specifically, a plurality of groups of annular insertion sheet structures 5 arranged forwards are arranged on the outer peripheral wall of the conversion ring 4 along the axis direction. The inner peripheral wall of the tail shield 3 is provided with a plurality of groups of annular slot structures 6 arranged backwards along the axis direction, and the annular slot structures 6 are matched with the annular inserting sheet structures 5. Thus, the conversion ring 4 and the tail shield 3 are axially movably connected.

Furthermore, an annular reinforcing structure 7 is arranged on the inner peripheral wall of the tail shield 3 on the front side of the annular slot structure 6, so that the connection reliability between the adapter ring 4 and the tail shield 3 is improved.

The principle is as follows:

the top shield machine provided by the invention has two working modes.

1. Pipe jacking mode: in the mode, the propulsion oil cylinder 9 does not work, the main jacking oil cylinder pushes the duct piece 8 to act on the conversion ring 4, and the conversion ring 4 axially jacks the tail shield 3 to drive the crushing equipment 1 to propel. (the crushing equipment in the mode has high propelling speed and is economical).

2. Shield mode: in the mode, the main jacking oil cylinder does not work, the propelling oil cylinder 9 works, and the conversion ring 4 is pushed out, so that the crushing equipment 1 is pushed to advance (in the mode, the crushing equipment has small turning radius and is flexible, small in disturbance to the stratum, and suitable for important urban road sections).

Therefore, the invention has the following advantages:

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a top shield machine which characterized in that: including broken rock equipment, well shield and the tail shield that sets gradually, well shield with be equipped with thrust cylinder between the tail shield, be equipped with in the tail shield with tail shield axial swing joint's conversion ring, the front end of conversion ring with thrust cylinder's output offsets, the rear end and the section of jurisdiction of conversion ring offset, the section of jurisdiction afterbody is equipped with main top hydro-cylinder.

2. The top shield machine of claim 1, wherein: the rock breaking equipment is connected with the middle shield through a hinged oil cylinder.

3. The top shield machine of claim 1, wherein: the outer peripheral wall of the conversion ring is provided with a plurality of groups of annular insertion sheet structures arranged forwards along the axis direction.

4. The top shield machine of claim 3, wherein: the interior perisporium of tail shield is equipped with the cyclic annular slot structure that a plurality of groups set up towards the back along the axis direction, cyclic annular slot structure with cyclic annular inserted sheet structure agrees with.

5. The top shield machine of claim 4, wherein: and an annular reinforcing structure is arranged on the inner peripheral wall of the tail shield on the front side of the annular slot structure.