CN219570092U - TBM detachable temporary supporting device for coal mine - Google Patents

Abstract

The utility model discloses a detachable temporary supporting device of a TBM (Tunnel boring machine) for a coal mine, which comprises two groups of temporary supporting devices, wherein the two groups of temporary supporting devices are arranged on the upper part of the rear end of a TBM shield body and are symmetrically arranged left and right, each temporary supporting device comprises a mounting frame, a supporting frame and an oil cylinder, the mounting frames are connected with the TBM shield body through bolts, and four connecting lug seats are welded on the mounting frames; four connecting lug seats are welded in the middle of the support frame, the support frame is provided with a steel plate, rectangular steel pipes and a support plate, wherein the rectangular steel pipes are arranged in an arc shape, reinforcing ribs are arranged in the rectangular steel pipes, and the steel plate is arranged on the rectangular steel pipes; the support plates are provided with three support plates which are welded on one side of the steel plate at intervals, the upper end of each support plate is provided with a caulking groove, and magnets are embedded in the caulking grooves. The utility model is more convenient to maintain, and can realize the up-and-down lifting of the support frame through the extension and retraction of the oil cylinder, thereby realizing the support function.

Description

TBM detachable temporary supporting device for coal mine

Technical Field

The utility model relates to the field of coal mine tunnel construction, in particular to a TBM detachable temporary supporting device for a coal mine.

Background

The tunnel full-face heading machine (TBM) is high-tech construction equipment integrating machine, electricity, liquid, sensing and information technologies into a whole, realizing one-time excavation and hole forming of tunneling, rock slag shipment, hole wall support and the like, and is the most advanced tunnel construction machine in the world at present. Compared with the traditional methods such as the anchor spraying construction method, the method for constructing the tunnel by using the full-face tunneling machine has the advantages of safety, rapidness, high efficiency, small interference to the environment, no influence of climate and the like, and is widely used for tunnel engineering such as railways, highways, hydropower and the like.

In recent years, TBM has been increasingly used in coal mine underground. The factors determining the construction speed of the coal mine tunnel include the speed of supporting besides the tunneling speed. Temporary support plays an important role in the support work of coal mines, which requires the TBM itself to be equipped with temporary protection devices. The general TBM temporary supporting device is integrally and directly welded at the rear of the shield body, and maintenance is relatively difficult, so the utility model provides a detachable temporary supporting device which is positioned at the rear upper part of the TBM shield body and realizes a detachable supporting function.

Disclosure of Invention

The utility model aims to provide a detachable temporary supporting device for a TBM (Tunnel boring machine) for a coal mine, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the TBM detachable temporary supporting devices for the coal mine are provided with two groups of temporary supporting devices which are arranged at the upper part of the rear end of a TBM shield body, the two groups of temporary supporting devices are arranged in bilateral symmetry, each temporary supporting device comprises a mounting frame, a supporting frame and an oil cylinder, the mounting frames are connected with the TBM shield body through bolts, and four connecting lug seats are welded on the mounting frames; four connecting lug seats are welded in the middle of the support frame, the support frame is provided with a steel plate, rectangular steel pipes and a support plate, wherein the rectangular steel pipes are arranged in an arc shape, reinforcing ribs are arranged in the rectangular steel pipes, and the steel plate is arranged on the rectangular steel pipes; the support plates are provided with three support plates which are welded on one side of the steel plate at intervals, the upper end of each support plate is provided with a caulking groove, and magnets are embedded in the caulking grooves.

Preferably, the three support plates have large front ends and small rear ends, and the front and rear sides of the support plates are also provided with connecting lugs.

Preferably, the included angle between the mounting frame and the central axis of the TBM shield body is 3-28 degrees, and the included angle between the support frame and the central axis of the TBM shield body is 3-51 degrees.

Preferably, the connecting lug seat at the front end of the support frame is in pin joint with the connecting lug seat at the upper end of the mounting frame through a pin shaft, and the connecting lug seat on the support plate at the rear part of the support frame is in pin joint with the piston rod end of the oil cylinder through a pin shaft.

Preferably, the piston cylinder end of the oil cylinder is in pin joint with the connecting lug seat at the lower end of the mounting frame through a pin shaft, and the oil cylinder can stretch and retract and enable the support frame to move up and down during starting.

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

1. according to the utility model, the mounting frame and the support frame are connected in a pin joint manner by adopting a combined structure, so that compared with a welding manner, the support frame is more convenient to maintain, and the support frame can be lifted up and down by the extension and retraction of the oil cylinder, so that the support function is realized.

2. The support frame disclosed by the utility model adopts a combined design of the steel plate, the rectangular steel pipe and the support plate, and the magnet is welded at the upper end of the support plate, so that an anchor net can be laid in an auxiliary manner, the anchor net is prevented from sliding off, the rectangular steel pipe has the effect of reinforcing the steel plate, and the support device is higher in strength and better in support effect.

Drawings

FIG. 1 is a schematic view of a support device of the present utility model mounted on a TBM shield;

fig. 2 is a schematic perspective view of the support device of the present utility model.

In the figure: 1. a mounting frame; 2. a support frame; 201. a steel plate; 202. rectangular steel pipes; 203. a support plate; 204. a magnet; 3. an oil cylinder; 4. TBM shield.

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.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a detachable temporary support device of TBM for colliery, includes temporary support device and is equipped with two sets of and its upper portion that is located TBM shield body 4 rear end, and two sets of temporary support device are bilateral symmetry and set up, and each temporary support device includes mounting bracket 1, support frame 2 and hydro-cylinder 3, and wherein mounting bracket 1 passes through the bolt to be connected with TBM shield body 4, welds on the mounting bracket 1 and is equipped with four engaging lug seats; four connecting lug seats are welded in the middle of the support frame 2, the support frame 2 is provided with a steel plate 201, a rectangular steel pipe 202 and a support plate 203, wherein the rectangular steel pipe 202 is arranged in an arc shape, reinforcing ribs are arranged in the rectangular steel pipe 202, and the steel plate 201 is arranged on the rectangular steel pipe 202; the support plates 203 are provided with three support plates, and are welded on one side of the steel plate 201 at intervals, the upper end of each support plate 203 is provided with a caulking groove, and a magnet 204 is embedded in each caulking groove.

In this embodiment, three support plates 203 have a large front end and a small rear end, and the rear side of the front end of the support plate 203 is also provided with a connection lug.

In the embodiment, the included angle between the mounting frame 1 and the central axis of the TBM shield body 4 is 3-28 degrees, the included angle between the supporting frame 2 and the central axis of the TBM shield body 4 is 3-51 degrees,

in this embodiment, the connection lug at the front end of the support frame 2 is pinned with the connection lug at the upper end of the mounting frame 1 through a pin, and the connection lug on the support plate 203 at the rear part of the support frame 2 is pinned with the piston rod end of the oil cylinder 3 through a pin.

In the embodiment, the piston cylinder end of the oil cylinder 3 is in pin joint with the connecting lug seat at the lower end of the mounting frame 1 through a pin, and the oil cylinder 3 can stretch and retract and enable the support frame 2 to move up and down during starting.

In this embodiment, the device adopts the integrated configuration, with mounting bracket 1, and support frame 2 adopts the mode of pin joint to be connected with hydro-cylinder 3, compares in welded mode, and it is more convenient to maintain, can realize the oscilaltion of support frame 2 through the flexible of hydro-cylinder 3 to realize the support function.

In this embodiment, the support frame 2 adopts the combined design of steel plate 201, rectangular steel pipe 202 and backup pad 203, and the welding of backup pad 203 upper end has magnet 204, and magnet 204 can assist in laying the anchor net, prevents anchor net landing, and rectangular steel pipe 202 plays the effect of strengthening the steel plate, makes strutting arrangement intensity higher, and the supporting effect is better.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The TBM detachable temporary supporting device for the coal mine is provided with two groups of temporary supporting devices which are arranged at the upper part of the rear end of a TBM shield body (4), and the two groups of temporary supporting devices are symmetrically arranged left and right; four connecting lug seats are welded in the middle of the support frame (2), the support frame (2) is provided with a steel plate (201), a rectangular steel pipe (202) and a support plate (203), wherein the rectangular steel pipe (202) is arranged in an arc shape, reinforcing ribs are arranged in the rectangular steel pipe (202), and the steel plate (201) is arranged on the rectangular steel pipe (202); the support plates (203) are provided with three support plates which are welded on one side of the steel plate (201) at intervals, the upper end of each support plate (203) is provided with a caulking groove, and a magnet (204) is embedded in each caulking groove.

2. The removable temporary support device for a TBM for a coal mine of claim 1, wherein: the three support plates (203) are large in front end and small in rear end, and the front end and the rear side of the support plates (203) are also provided with connecting lugs.

3. The removable temporary support device for a TBM for a coal mine of claim 1, wherein: the included angle between the mounting frame (1) and the central axis of the TBM shield body (4) is 3-28 degrees, and the included angle between the supporting frame (2) and the central axis of the TBM shield body (4) is 3-51 degrees.

4. The removable temporary support device for a TBM for a coal mine of claim 1, wherein: the connecting lug seat at the front end of the support frame (2) is in pin joint with the connecting lug seat at the upper end of the mounting frame (1) through a pin shaft, and the connecting lug seat on the support plate (203) at the rear part of the support frame (2) is in pin joint with the piston rod end of the oil cylinder (3) through a pin shaft.

5. The removable temporary support device for a TBM for a coal mine of claim 1, wherein: the piston cylinder end of the oil cylinder (3) is in pin joint with the connecting lug seat at the lower end of the mounting frame (1) through a pin shaft, and the oil cylinder (3) can stretch and retract and enable the support frame (2) to move up and down during starting.