CN212563242U

CN212563242U - Peristaltic shield machine advancing device

Info

Publication number: CN212563242U
Application number: CN202021069289.XU
Authority: CN
Inventors: 吴成
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-02-19
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a wriggling formula shield constructs machine device of marcing belongs to tunnel excavating equipment technical field. The traveling device includes a cylindrical main machine housing, a drill bit assembly mounted at a front side thereof, and a sliding support assembly and a push assembly mounted at an inside thereof. A plurality of sliding support notches and fixed support notches are formed in the main machine shell along the circumferential direction. The sliding support component is connected with the main machine shell through a sliding support notch. The telescopic mechanism connected with the sliding support notch and the fixed support notch can be extended out from the sliding support notch and the fixed support notch, so that stable support with the external space is formed. The structure of the traveling device can be large or small, the diameter can be from dozens of centimeters to several meters, and the application range is wide. The tool can be used as an excavating tool for small pipelines such as underground cables, drain pipes and the like, can be used as an excavating tool for normal tunnels and mines, and can even be used as a cleaning tool for the interior of large-scale drainage pipelines.

Description

Peristaltic shield machine advancing device

Technical Field

The utility model relates to a wriggling formula shield constructs machine advancing device, in particular to tunnelling is from walking integrative wriggling formula shield and constructing machine advancing device belongs to tunnel excavating equipment technical field.

Background

The shield machine is a special large-scale engineering machine for tunneling, and plays an important role in mining and tunnel excavation. With the continuous development of the technology, various types of shield machines have been developed, such as hand-operated shield machines, extrusion type shield machines, mechanical shield machines, and the like. Typically, shield machines excavate the soil by advancing a cylindrical steel assembly along the tunnel axis. The casing of the cylinder assembly is a shield which plays a temporary supporting role for excavating a tunnel section which is not lined yet and bears the pressure of a soil layer.

With the continuous progress of the shield excavation technology, the shield machine not only can be suitable for soil layers with soft soil texture, but also can be suitable for rock-soil layers or rock layers with hard soil texture. However, the existing tunnel excavation equipment such as a shield machine is large in size, is often used for excavating tunnels with large diameters, and is not suitable for excavating underground tunnels with small sizes. However, with the continuous development of cities, small underground pipelines such as cables, drainage pipelines, municipal pipelines and the like in the underground of the cities need to be laid, maintained and the like frequently, so that the original road surface is excavated openly, the workload is high, and the normal traffic of the ground is influenced. Meanwhile, the shield machine usually moves in a single direction and lacks a retraction function.

SUMMERY OF THE UTILITY MODEL

For solving current shield structure organism volume great, be not suitable for excavating small-size underground pipeline to and can only unidirectional motion lack the problem of returning back the function, the utility model provides a wriggling formula shield constructs machine and advances device, the technical scheme who takes as follows:

the utility model provides a formula of creeping shield constructs machine advancing device, includes cylindrical host computer casing 1, install in drill bit subassembly 2, slip supporting component 3, the promotion subassembly 4 in host computer casing 1 advancing direction the place ahead. A plurality of sliding support notches 14 connected with the sliding support assembly 3 are uniformly arranged on the side surface circumferential part 11 of the main machine shell 1 along the circumferential direction; one side or two sides of the sliding support notch 14 are provided with fixed support notches 15; the group of sliding support notches 14 and the group of fixed support notches 15 form a movable support unit; the traversing device is linearly provided with a plurality of movable supporting units along the axial direction of the main machine shell 1; the sliding support assembly 3 comprises a support frame 31 arranged inside the main machine shell 1, and a telescopic mechanism I32 arranged at the tail end of the support frame 31 and connected with a sliding support notch 14 and a telescopic structure fixedly connected with a fixed support notch 15, wherein both the telescopic mechanisms can extend out of the outer side of the circumferential part 11 of the main machine shell 1 along the radial direction of the main machine shell 1 to form a fixed structure for realizing the suspension of the main machine shell 1; the pushing assembly 4 comprises a telescopic mechanism II42 fixed on the support ring 41 inside the main machine housing 1 to connect with the support frame 31; the retracting mechanism II42 can push the main chassis 1 to move forward or backward along the traveling direction after the retracting mechanism I32 is fixed with the environment outside the main chassis 1.

Preferably, the front part of the main machine housing 1 is a drill bit connecting end part 12 connected with the drill bit assembly 2, and the rear part is a backward guide end part 13 provided with a backward guide pipe.

More preferably, the backward guide pipe is a concentric reducing pipe that is retracted toward the axis of the main body housing 1.

Preferably, the telescopic mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric motor.

Preferably, the drill bit assembly 2 includes a cylindrical body 21 having a diameter greater than the outer diameter of the main machine housing 1; a mounting ridge 22 for mounting an excavating blade is provided on the front side surface of the body 21; the rear part is provided with a rotating shaft 23 which drives the drill bit component 2 to rotate; and a through rock output port 24 is arranged on the main body 21.

More preferably, the travelling device further comprises an output duct 5; the output pipe 5 includes a connection portion 51 communicating with the soil outlet 24, and a pipe 52 connected to a rear side of the connection portion 51.

Preferably, a slide groove 34 is installed on the slide support notch 14; the sliding groove 34 is a frame structure with the external shape matched with the internal shape of the sliding support notch 14; an inner concave groove 341 is arranged in the middle of the inner side surface of the sliding groove 34; the telescopic end connecting plate of the telescopic mechanism I32 is movably connected in the inner groove 341; the telescopic direction of the telescopic mechanism II42 is the same as the direction of the chute 34.

More preferably, the sliding groove 34 is provided with protrusions 342 along both sides of the length direction, and the protrusions 342 and the outer side edges form a stepped structure; the slide groove 34 is fixedly connected with the slide support notch 14 through the stepped structure.

Preferably, a fixing plate located outside the main chassis 1 is fixedly connected to the outer end of the telescopic structure fixedly connected to the telescopic mechanism I32 and the fixed support slot 15.

More preferably, a protrusion having a sharp-pointed end is provided on the outer fixing surface of the fixing plate.

Compared with the prior art, the utility model discloses the beneficial effect who obtains is:

the utility model provides a device of marcing's structure can be big or small, and the diameter can be followed dozens of centimetres to several meters, and application scope is wide. The tool can be used as an excavating tool for small pipelines such as underground cables, drain pipes and the like, can be used as an excavating tool for normal tunnels and mines, and can even be used as a cleaning tool for the interior of large-scale drainage pipelines.

The rear part of the advancing device is provided with a retreating guide pipe which can make the shield machine retreat along the working surface of the excavated tunnel. The method is particularly suitable for the soil layer with hard soil and difficult collapse and the inside of a large pipeline. Meanwhile, the advancing device advances in a non-traditional excavation and propelling mode and a 'creeping type' circulating working mode of supporting, fixing, propelling, fixing and contracting through a telescopic supporting mechanism extending out of the periphery of the main machine shell, so that the advancing device is stable in operation, good in controllability, capable of achieving unmanned control and automatic excavation, and capable of being used for greatly improving the excavation progress and guaranteeing personal safety.

Drawings

Fig. 1 is a rear view schematically illustrating a traveling apparatus according to a preferred embodiment of the present invention.

Fig. 2 is a schematic perspective view of fig. 1.

Fig. 3 is a schematic perspective view of a main frame of a traveling apparatus according to a preferred embodiment of the present invention.

Fig. 4 is a schematic perspective view of a combination of a pushing assembly and a sliding support assembly of a traveling device according to a preferred embodiment of the present invention.

Fig. 5 is a schematic perspective view of an end portion of a sliding support assembly of a traveling device according to a preferred embodiment of the present invention.

Fig. 6 is a schematic perspective view of a drill head assembly of a traveling device according to a preferred embodiment of the present invention.

Fig. 7 is a schematic perspective view of a rock-soil output pipeline of a traveling device according to an embodiment of the present invention.

Wherein, 1, a main machine shell; 2, a drill bit assembly; 3, sliding the support component; 4, pushing the assembly; 5, outputting a pipeline; 11, a circumferential portion; 12, a drill bit connecting end part; 13, retreating the guide end part; 14, a sliding support notch; 15, fixing the support notch; 21, a body; 22, mounting edges; 23, a rotating shaft; 24, rock and soil output ports; 31, a support frame; 32, a telescoping mechanism I; 33, fixing the plate; 34, a chute; 35, cushion blocks; 41, a support ring; 42, a telescoping mechanism II; 51, a connecting part; 52, a pipeline; 341, inner tank; 342, a boss.

Detailed Description

In the following description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the following description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, or the connection may be internal to both components. To those of ordinary skill in the art, the specific meaning of the written terms in the present invention can be understood as a specific case.

In addition, in the following description of the present invention, the meaning of "a plurality", and "a plurality" is two or more unless otherwise specified.

The materials, reagents, devices, apparatuses, methods and processes used in the following examples are not specifically described, and are all materials, reagents, devices, apparatuses, methods and processes which are common in the art, and are commercially available to those skilled in the art or can be routinely set up according to specific needs without any creative effort.

The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited by the following detailed description.

The telescopic device in the following embodiment adopts a telescopic hydraulic oil cylinder.

Fig. 1 is a rear view schematically illustrating a traveling apparatus according to a preferred embodiment of the present invention. Fig. 2 is a schematic perspective view of fig. 1. As can be seen from fig. 1 and 2, in the preferred embodiment, the traveling apparatus includes a cylindrical main machine housing 1, a drill bit assembly 2 at a front end of the main machine housing 1, two sliding support assemblies 3 installed inside the main machine housing 1, and two pushing assemblies 4.

The support frame 31 of the sliding support assembly 3 is cross-shaped, and has four end portions, which are respectively connected with the four interactive support notches 14 on the outer circumference of the main machine housing 1. Meanwhile, a fixed support notch 15 is provided near the downstream side of each slide support notch 14.

Fig. 3 is a schematic perspective view of a main frame of a traveling apparatus according to a preferred embodiment of the present invention. As can be seen from fig. 3, in the preferred embodiment, the front of the main machine housing 1 is a drill connecting end portion 12, and the rear is a rear guide end portion 13. The drill connection end portion 12 is provided with a support frame for connecting the pair of drill units 2, and the rear retreat guide end portion 13 is a concentric reducing pipe which is retracted toward the axis of the main machine housing 1.

Fig. 4 is a schematic perspective view of a combination of a pushing assembly and a sliding support assembly of a traveling device according to a preferred embodiment of the present invention. As can be seen from fig. 4, in the preferred embodiment, the pushing assembly 4 comprises an annular supporting ring 41, and a fixedly mounted telescopic mechanism II42 located in the axial direction of the supporting ring 41, wherein the telescopic rod end of the telescopic mechanism II42 is connected with the cushion block 35 at the central position of one side surface of the cross-shaped supporting frame 31. The sliding support assembly 3 is fixedly provided with a telescopic mechanism I32 at each end of the support frame 31, and the tail end of the telescopic mechanism II is connected with a fixed plate 33. In order to increase the stability of the fixation, the outer side surface of the fixation plate 33 is provided with spine-shaped protrusions distributed in a rectangular array. Around the lower part of the fixed plate 33 are sliding slots 34 (two shown and two not shown). The length of the slide groove 34 is greater than that of the fixing plate 33, so that the slide groove 34 can move in the length direction.

Fig. 5 is a schematic perspective view of an end portion of a sliding support assembly of a traveling device according to a preferred embodiment of the present invention. As can be seen from fig. 5, in the preferred embodiment, the fixing plate at the front end of the telescopic rod of the telescopic mechanism I32 is movably mounted in the inner side surface inner groove 341 of the slide groove 34 of the rectangular frame structure. A boss 342 is provided at an upper portion of the slide groove 34 in a length direction to form a stepped structure with the edge. The slide groove 34 is fixedly connected to the slide support notch 14 by the step mechanism.

Fig. 6 is a schematic perspective view of a drill head assembly of a traveling device according to a preferred embodiment of the present invention. As can be seen from fig. 6, in the preferred embodiment, the drill head assembly 2 comprises a cylindrical body 21 provided on the outside of the body 21 with mounting ribs 22 radiating radially from the centre of the circle for mounting an excavating tool. A rotating shaft 23 (or a bearing) for driving the main body 21 to rotate is arranged in the middle of the inner side surface of the main body 21. Meanwhile, a fan-shaped notch is arranged on the main body 21 and is used as a rock and soil output port 24 for conveying rock and soil.

Fig. 7 is a schematic perspective view of a rock-soil output pipeline of a traveling device according to an embodiment of the present invention. As can be seen from fig. 7, in the preferred embodiment, the rock output duct 5 is mainly composed of two parts, one part is a connecting part 51 matching the shape of the fan-shaped rock output port 24, and the rear side of the connecting part 51 is a duct 52.

Taking the attached drawings as examples, the working flow of the travelling mechanism is as follows: (taking forward as an example)

1. And manually digging a tunnel slightly larger than the main body of the shield tunneling machine, and mechanically pushing the main body of the shield tunneling machine into the tunnel at the rear part.

2. The 8 supporting and fixing oil cylinders are started, and oil cylinder rods extend out to firmly lock the main machine body on the tunnel wall through the fixing plate. By adjusting the telescopic length of the oil cylinder rods of the 8 oil cylinders, the main machine body is suspended in the tunnel and is not contacted with the wall of the tunnel.

3. The main thrust cylinder of the 2 thrust assemblies is activated and the cylinder rod is fully retracted back to the lowest position.

4. 8 support propulsion cylinder starts, and the hydraulic stem is fixed in the cliff through the fixed plate.

5. The 8 supporting and fixing hydraulic cylinders are started, and the oil cylinder rod is retracted to the lowest position (the main machine body is suspended in the tunnel through the 8 supporting and sliding hydraulic fixing plates).

6. And 2 main pushing hydraulic cylinders work to push the main machine body of the shield machine and the drill bit to advance through a slideway supporting the sliding hydraulic cylinders.

7. When the main pushing hydraulic cylinder works, the hydraulic rod extends to the highest position, and the hydraulic pressure stops working.

8. 8 support fixed cylinder work. The oil cylinder rod extends out and fixes the machine body through the fixing plate (at the moment, 8 supporting sliding oil cylinder fixing claws and 8 supporting fixing oil cylinder fixing plates are in close contact with the hole wall)

9. And 8 supporting sliding hydraulic cylinders work, and when the hydraulic rod is contracted to the lowest position. (at the moment, the main body of the shield machine is suspended in the tunnel by 8 supporting fixed oil cylinders)

10. The 2 main pushing hydraulic cylinders work to push the supporting sliding hydraulic cylinder to the lowest position.

11. And starting to repeat the action of the step 4.

The backward process of the shield tunneling machine is the same through adjusting the working direction of the main push oil cylinder.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A travelling device for a peristaltic shield machine comprises a cylindrical main machine shell (1), a drill bit assembly (2) arranged in front of the main machine shell (1) in the travelling direction; the device is characterized by also comprising a sliding support component (3) and a pushing component (4); a plurality of sliding support notches (14) connected with the sliding support component (3) are uniformly arranged on the side surface circumferential part (11) of the host machine shell (1) along the circumferential direction; one side or two sides of the sliding support notch (14) are provided with fixed support notches (15); a group of sliding support notches (14) and a group of fixed support notches (15) form a movable support unit; the traversing device is linearly provided with a plurality of movable supporting units along the axial direction of the main machine shell (1); the sliding support assembly (3) comprises a support frame (31) arranged in the main machine shell (1), and a telescopic mechanism I (32) and a telescopic structure, wherein the telescopic mechanism I and the telescopic structure are arranged at the tail end of the support frame (31) and connected with a sliding support notch (14), and the telescopic structure is fixedly connected with a fixed support notch (15), and both the telescopic mechanisms can extend out of the outer side of the circumferential part (11) of the main machine shell (1) along the radial direction of the main machine shell (1) to form a fixed structure for realizing suspension of the main machine shell (1); the pushing assembly (4) comprises a supporting ring (41) fixed inside the main machine shell (1) and a telescopic mechanism II (42) connected with the supporting frame (31); the telescoping mechanism II (42) can push the main machine shell (1) to move forwards or backwards along the traveling direction after the telescoping mechanism I (32) is fixed with the external environment of the main machine shell (1).

2. The traveling device for the peristaltic shield tunneling machine according to claim 1, wherein the front portion of the main machine housing (1) is a drill bit connection end portion (12) connected to the drill bit assembly (2), and the rear portion is a retreating guide end portion (13) provided with a retreating guide pipe.

3. The advancing device for the peristaltic shield tunneling machine according to claim 2, wherein the retreating guide pipe is a concentric reducer which is retracted toward the axis of the main machine housing (1).

4. The advancing device for the peristaltic shield tunneling machine according to claim 1, wherein the telescoping mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric motor.

5. The travelling device for the peristaltic shield tunneling machine according to claim 1, wherein the drill bit assembly (2) comprises a cylindrical body (21) having a diameter larger than the outer diameter of the main machine housing (1); a mounting edge (22) for mounting the excavating blade is arranged on the front side surface of the main body (21); the rear part is provided with a rotating shaft (23) which drives the drill bit component (2) to rotate; and a through rock output port (24) is arranged on the main body (21).

6. The travelling device for the peristaltic shield tunneling machine according to claim 5, further comprising an output duct (5); the output pipeline (5) comprises a connecting part (51) communicated with the rock-soil output port (24) and a pipeline (52) connected with the rear side of the connecting part (51).

7. The traveling device for the peristaltic shield tunneling machine according to claim 1, wherein a sliding groove (34) is installed on the sliding support slot (14); the sliding groove (34) is a frame structure with the external shape matched with the inner side shape of the sliding support notch (14); an inner concave groove (341) is arranged in the middle of the inner side surface of the sliding groove (34); a telescopic end connecting plate of the telescopic mechanism I (32) is movably connected in the inner groove (341); the telescopic direction of the telescopic mechanism II (42) is the same as the direction of the sliding chute (34).

8. The travelling device for the peristaltic shield tunneling machine according to claim 7, wherein the sliding groove (34) is internally provided with protrusions (342) along two sides of the length direction, and the protrusions (342) and the outer side edges form a stepped structure; the chute (34) is fixedly connected with the sliding support notch (14) through the stepped structure.

9. The travelling device for the peristaltic shield tunneling machine according to claim 1, wherein a fixing plate located outside the main machine housing (1) is fixedly connected to the outer end of the telescopic structure fixedly connected to the telescopic mechanism I (32) and the fixed support notch (15).

10. The advancing device for the peristaltic shield tunneling machine according to claim 9, wherein a protrusion with a sharp-pointed end is provided on an outer fixing surface of the fixing plate.