Auxiliary mounting device for underground U-shaped steel lagging jack

Abstract

The utility model provides an auxiliary installation device for an underground U-shaped steel arch frame, which comprises a connecting rod, the connecting rod is arc-shaped, two ends of the connecting rod are respectively provided with a first inserting hole, two sides of each first inserting hole are symmetrically provided with two connecting rings, the top of the connecting rod is provided with an inserting plate, the inserting plate is square and is provided with a plurality of second inserting holes, and the second inserting holes are communicated with the connecting rings. A support is arranged above the inserting plate, two clamping plates are arranged at the bottom of the support and are symmetrically arranged, and the inserting plate is connected with the clamping plates through bolts. The lifting device is installed at the connecting rod of the hydraulic excavator, lifting of the steel arch top beam is facilitated, manpower can be saved, working efficiency is improved, and safety risks are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine equipment and relates to an auxiliary installation device for an underground U-shaped steel arch frame. Background Art

[0002] Steel arch is a load-bearing structure made of high-strength steel. It is made of L, U, I-shaped steel and steel rails, steel pipes and other steel, processed into the required shape, and installed as a whole or assembled with rods to reinforce the support measures of underground projects. It is used in the initial support of the tunnel to prevent excessive deformation of the weak surrounding rock tunnel. Especially when the surrounding rock conditions are poor, the use of steel arch can quickly provide sufficient support resistance to meet the main stiffness required for initial support, limit excessive deformation of the surrounding rock, and ensure the stability of the tunnel support structure system. Among them, the U-shaped steel arch has the advantages of high initial support force, high support strength, easy installation, and not easy to deform. The use of U-shaped steel brackets can effectively reduce the occurrence of accidents such as roof collapse and slab collapse, and is safe and reliable.

[0003] The top beam of the U-shaped steel arch frame is an arc-shaped arch. When supporting the steel arch frame, the steel arch frame needs to be moved to a specified height to facilitate installation by the staff. The existing method of moving the steel arch frame is: the installer needs to stand on the lifting platform of the multi-functional service vehicle and lift the top beam of the steel arch frame by manpower. After the multi-functional service vehicle lifts the personnel and the top beam to the top of the tunnel, the arch frame is fixed. This method requires the use of manpower to lift the steel arch frame, which is labor-intensive and slow. In addition, the surrounding rock of the arch frame installation working surface is unstable, and it is easy to cause problems such as falling gravel and injuring people. It is very dangerous and has certain safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary installation device for an underground U-shaped steel arch frame in response to the problems existing in the prior art, which solves the problem that the existing method of transporting the steel arch frame requires the use of manpower to lift the steel arch frame, which has high labor intensity and slow speed, and the surrounding rock of the arch frame installation working surface is unstable, which makes it easy for gravel to fall and injure people.

[0005] To this end, the utility model adopts the following technical solutions:

[0006] An auxiliary installation device for an underground U-shaped steel arch frame comprises a connecting rod, which is arc-shaped. Both ends of the connecting rod are provided with a first socket, and two connecting rings are symmetrically provided on both sides of the first socket. A plug plate is provided on the top of the connecting rod, and the plug plate is square and has a plurality of second sockets. A support is provided above the plug plate, and the support is U-shaped with an opening facing upward. Two clamping plates are provided at the bottom of the support, and the two are symmetrically arranged. The plug plate and the clamping plates are connected by bolts.

[0007] Furthermore, a third plug hole is provided at a position of the clamping plate corresponding to the second plug hole.

[0008] The beneficial effects of the utility model are:

[0009] The utility model is used for installing the steel arch frame during the primary and secondary support process of underground mines. With the help of an underground hydraulic excavator, the steel arch frame is installed at the connecting rod of the hydraulic excavator to facilitate the lifting of the top beam of the steel arch frame, thus saving manpower, improving working efficiency and reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a structural schematic diagram of the connecting rod of the utility model;

[0012] Figure 3 It is a structural schematic diagram of the support of the utility model;

[0013] Figure 4 It is a schematic diagram of the use process of the utility model.

[0014] In the figure, 1-connecting rod, 1a-first socket, 1b-connecting ring, 2-plug plate, 2a-second socket, 3-support, 4-clamp plate, 4a-third socket, 5-bolt, 6-arch top beam. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is described below in conjunction with the accompanying drawings and implementation methods.

[0016] like Figure 1 As shown, an auxiliary installation device for an underground U-shaped steel arch frame includes a connecting rod 1, as shown in FIG. Figure 2 As shown, the connecting rod 1 is arc-shaped, and both ends of the connecting rod 1 are provided with a first plug hole 1a, and two connecting rings 1b are symmetrically provided on both sides of the first plug hole 1a.

[0017] A plug plate 2 is provided on the top of the connecting rod 1. The plug plate 2 is a cube and has a plurality of second plug holes 2a. It should be noted that the processing position of the plug plate 2 must ensure that it does not affect the normal operation of the hydraulic excavator, and there is a certain space between the bucket and the connecting rod 1 when the excavator is lifted to the top of the tunnel.

[0018] like Figure 3 As shown, a support 3 is provided above the plug plate 2. The support 3 is U-shaped with its opening facing upward. Specifically, its U-shaped width should be slightly smaller than the width of the arch frame top beam, and its height is slightly lower than the top beam, so as to limit the left and right positions of the arch frame top beam.

[0019] Two clamping plates 4 are provided at the bottom of the support 3, and the two are symmetrically arranged. A third hole 4a is provided at the position of the clamping plate 4 corresponding to the second hole 2a, and the plug plate 2 and the clamping plate 4 are connected by bolts 5; specifically, the spacing between the clamping plates 4 should be slightly larger than the thickness of the plug plate 2.

[0020] like Figure 4 As shown, the utility model is in use as follows:

[0021] First, the connecting rod 1 is installed on the excavator to replace the original vehicle connecting rod for normal operation of the underground working surface. When the underground tunnel needs to install a steel arch frame for support, the operator inserts the two clamps 4 under the arch frame support into the plug plate 2 above the connecting rod 1, and inserts the bolts 5 into the second hole 2a and the third hole 4a in turn to tighten the arch frame support. After tightening, the arch frame top beam 6 is placed in the support 3. After it is stabilized, the hydraulic excavator lifts the arch frame top beam 6 to the top of the tunnel, and then the operator installs and fixes the arch frame.

Claims

1. An auxiliary installation device for underground U-shaped steel arch frame, characterized in that: The invention comprises a connecting rod (1), wherein both ends of the connecting rod (1) are provided with a first plug hole (1a), and two connecting rings (1b) are symmetrically provided on both sides of the first plug hole (1a). A plug plate (2) is provided on the top of the connecting rod (1), a support (3) is provided above the plug plate (2), and two clamping plates (4) are provided at the bottom of the support (3), and the two are symmetrically arranged, and the plug plate (2) and the clamping plates (4) are connected by bolts (5).

2. The auxiliary installation device for underground U-shaped steel arch according to claim 1, characterized in that: The connecting rod (1) is arc-shaped.

3. The auxiliary installation device for underground U-shaped steel arch according to claim 1, characterized in that: The plug board (2) is in the form of a cube and is provided with a plurality of second plug holes (2a).

4. The auxiliary installation device for underground U-shaped steel arch according to claim 1, characterized in that: The support (3) is U-shaped, with its opening facing upward.

5. The auxiliary installation device for underground U-shaped steel arch according to claim 2, characterized in that: The clamping plate (4) is provided with a third plug hole (4a) at a position corresponding to the second plug hole (2a).

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