Connecting box of forepoling upper pressure-bearing base

Abstract

The utility model discloses a connecting box of a forepoling upper pressure-bearing base, and belongs to the technical field of under-mine forepoling devices. The device comprises a bottom plate, a pair of vertical plates is arranged in the middle of the bottom plate; the vertical plate is arranged along the length direction of the bottom plate; push seats are arranged on the front and rear end sides of the vertical plate; a pushing jack is mounted on the pushing seat; a plurality of transverse partition plates are arranged between the vertical plates; the space between the two vertical plates is sequentially divided into a front hydraulic column section, a front connecting rod section, a rear connecting rod section, a transition section and a rear hydraulic column section from front to back by the transverse partition plates; supporting back plates are arranged on the front hydraulic column section and the rear hydraulic column section, and column sockets matched with the hydraulic telescopic supporting columns for positioning are further arranged on the supporting back plates. The front connecting rod section and the rear connecting rod section are each provided with a pin shaft used for being matched with the corresponding pressure-bearing connecting rod. The bottom box girder structure effectively solves the problem that a single-group vertical frame arranged in the middle of a roadway in a matched mode and a bottom box girder structure capable of providing an effective supporting effect are lacked currently.

Description

Technical Field

[0001] The utility model relates to the technical field of advanced support devices under mines, in particular to a connection box of an advanced support upper pressure base. Background Art

[0002] As the coal mining face continues to advance, the pressure in the advance section of the tunnel moves forward, so it is necessary to strengthen the support in the advance section of the working face exit; the advance support in the tunnel is a support method used to prevent the tunnel surrounding rock from deformation, movement or damage caused by the superposition of the advance support pressure of the working face and the support pressure along the inclined direction; most of the currently commonly used advance support structures are similar to the patent documents disclosed in application numbers "2009100109003" or "2007101853158", that is, two sets of frames are used to provide support for the upper beams and slabs; and in order to adapt to the current underground working environment, the applicant needs to design a method that only uses a single set of frames arranged in the middle of the tunnel, and based on this, it is necessary to design a bottom support beam structure. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a connection box for the upper pressure base of the advance support, so as to solve the problem of the current lack of a bottom box beam structure that can cooperate with a single set of vertical frames set in the middle of the tunnel to provide an effective supporting effect.

[0004] In order to solve the above problems, the present invention provides the following technical solutions:

[0005] A connection box for a pressure-bearing base on an advance support; it comprises a base plate; a pair of vertical plates are provided in the middle of the base plate; the vertical plates are arranged along the length direction of the base plate; push seats are provided on the front and rear end sides of the vertical plates; a push jack is installed on the push seat; a number of transverse partitions are provided between the vertical plates; the transverse partitions divide the space between the two vertical plates into a front hydraulic column section, a front connecting rod section, a rear connecting rod section, a transition section and a rear hydraulic column section from front to back; support back plates are provided on the front hydraulic column section and the rear hydraulic column section, and column sockets for cooperating with the positioning of the hydraulic telescopic support are also provided on the support back plates; pin shafts for cooperating with the pressure-bearing connecting rod are provided on the front connecting rod section and the rear connecting rod section.

[0006] Preferably, the front and rear end sides of the bottom plate are both isosceles trapezoidal structures with narrow protruding ends; one end of the push seat is arranged at the protruding end of the bottom plate.

[0007] Preferably, a single push seat includes two hollow lug platforms placed in parallel; a connecting pin is provided between the two lug platforms, and the push jack is installed on the connecting pin.

[0008] Preferably, a group of relatively tilted clamping plates are provided on the front hydraulic column section, the rear connecting rod section and the rear hydraulic column section; the clamping plates form an inverted eight-shaped groove with a larger upper part and a smaller lower part between the vertical plates.

[0009] Preferably, an auxiliary ear plate is provided in the middle of the vertical plate at a position corresponding to the front connecting rod section; connecting rod pads are attached to the side walls of the vertical plate corresponding to the auxiliary ear plate and the rear connecting rod section; and the pin is provided through the connecting rod pad.

[0010] Preferably, the side walls of the vertical plates corresponding to the front hydraulic column section and the rear hydraulic column section are both provided with pressure plates and blocks for installation in conjunction with the hydraulic telescopic struts.

[0011] Preferably, a cover plate is provided on the front hydraulic column section and the rear hydraulic column section at positions close to the corresponding push seats, and a cover plate is also provided on the transition section.

[0012] Furthermore, a valve group positioning seat is provided on the cover plate near the front push seat position.

[0013] Beneficial effects of the utility model:

[0014] The utility model designs a bottom pressure-bearing beam for advanced support; it reasonably divides the beam structure into sections, thereby providing a reliable connection and support effect for the hydraulic telescopic columns and connecting rods. Its overall structure is simple, easy to process and install, and can meet the support needs in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in the embodiment;

[0016] Figure 2 yes Figure 1 A top view of

[0017] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the central device after removing one side of the vertical plate;

[0018] Figure 4 yes Figure 3 A front view of the device;

[0019] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure of the device after removing various covers, i.e., some parts;

[0020] Explanation of the accompanying reference numerals: 1. Base plate, 2. Vertical plate, 3. Push seat, 4. Push jack, 5. Transverse partition, 6. Front hydraulic column section, 7. Front connecting rod section, 8. Rear connecting rod section, 9. Transition section, 10. Rear hydraulic column section, 11. Pin shaft, 12. Auxiliary ear plate, 13. Clamp, 14. Pressure plate, 15. Block, 16. Cover plate, 17. Valve group positioning seat, 18. Support back plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] Example:

[0023] Reference Figure 1 The present embodiment provides a connection box for the upper pressure base of the advance support; it includes a base plate 1; a pair of vertical plates 2 are arranged in the middle of the base plate 1; the vertical plates 2 are arranged along the length direction of the base plate 1; push seats 3 are provided on the front and rear end sides of the vertical plates 2; a push jack 4 is installed on the push seat 3; a number of transverse partitions 5 are provided between the vertical plates 2; the transverse partitions 5 divide the space between the two vertical plates 2 from front to back into a front hydraulic column section 6, a front connecting rod section 7, a rear connecting rod section 8, a transition section 9 and a rear hydraulic column section 10; support back plates 18 are provided on the front hydraulic column section 6 and the rear hydraulic column section 10, and column sockets for cooperating with the positioning of the hydraulic telescopic support are also provided on the support back plates; pin shafts 11 for cooperating with the pressure-bearing connecting rod are provided on the front connecting rod section 7 and the rear connecting rod section 8.

[0024] The front and rear ends of the bottom plate 1 are both isosceles trapezoidal structures with narrow protruding ends; one end of the push seat 3 is arranged at the protruding end of the bottom plate.

[0025] A single push seat 3 includes two hollow lug platforms placed in parallel; a connecting pin is provided between the two lug platforms, and the push jack 4 is installed on the connecting pin.

[0026] A set of relatively tilted clamping plates 13 are installed on the front hydraulic column section 6, the rear connecting rod section 8, and the rear hydraulic column section 10. Clamping plates 13 form an inverted "V"-shaped groove between the vertical plates, with a larger upper portion and a smaller lower portion. In this embodiment, vertically arranged reinforcing ribs are installed between adjacent clamping plates or crossbars.

[0027] An auxiliary ear plate 12 is provided in the middle of the vertical plate 2 at a position corresponding to the front connecting rod section 7; a connecting rod pad 13 is attached to the side wall of the vertical plate 2 corresponding to the auxiliary ear plate 12 and the rear connecting rod section 8; the pin shaft 11 is provided through the connecting rod pad 13.

[0028] The side walls of the vertical plate 2 corresponding to the front hydraulic column section 6 and the rear hydraulic column section 10 are provided with a pressure plate 14 and a stopper 15 for installation in conjunction with the hydraulic telescopic support.

[0029] Cover plates 16 are provided on the front hydraulic column section 6 and the rear hydraulic column section 10 at positions close to the corresponding push seats 3 , and a cover plate 16 is also provided on the transition section 9 .

[0030] A valve block positioning seat 17 is provided on the cover plate 16 near the front push seat. When using the utility model device of this embodiment, it is only necessary to assemble the various components according to the structure shown in the figure, install the assembled box beam on the pressure plate, and then install the corresponding hydraulic telescopic columns and connecting rods. The relative movement between the front and rear box beams is achieved by pushing the jack.

Claims

1. A connection box for an advanced support upper pressure base, characterized by: It comprises a bottom plate (1); a pair of vertical plates (2) are arranged in the middle of the bottom plate (1); the vertical plates (2) are arranged along the length direction of the bottom plate (1); push seats (3) are arranged on the front and rear end sides of the vertical plates (2); a push jack (4) is installed on the push seat (3); a plurality of transverse partitions (5) are arranged between the vertical plates (2); the transverse partitions (5) divide the space between the two vertical plates (2) into a front hydraulic column section (6), a front connecting rod section (7), a rear connecting rod section (8), a transition section (9) and a rear hydraulic column section (10) from front to back; a supporting back plate is arranged on the front hydraulic column section (6) and the rear hydraulic column section (10), and a column socket for cooperating with the positioning of the hydraulic telescopic support is also arranged on the supporting back plate; a pin shaft (11) for cooperating with the pressure-bearing connecting rod is arranged on the front connecting rod section (7) and the rear connecting rod section (8).

2. The connection box of the upper bearing base of the advance support according to claim 1, characterized in that: The front and rear end sides of the bottom plate (1) are both isosceles trapezoidal structures with narrow protruding ends; one end of the push seat (3) is arranged at the position of the protruding end of the bottom plate.

3. The connection box of the upper bearing base of the advance support according to claim 1, characterized in that: A single push seat (3) comprises two hollow lug platforms placed in parallel; a connecting pin is provided between the two lug platforms, and the push jack (4) is mounted on the connecting pin.

4. The connection box of the upper bearing base of the advance support according to claim 1, characterized in that: A group of relatively tilted clamping plates (13) are provided on the front hydraulic column section (6), the rear connecting rod section (8) and the rear hydraulic column section (10); the clamping plates (13) form an inverted eight-shaped groove between the vertical plates, with a larger upper portion and a smaller lower portion.

5. The connection box of the upper bearing base of the advance support according to claim 1, characterized in that: An auxiliary ear plate (12) is provided at a position in the middle of the vertical plate (2) corresponding to the front connecting rod section (7); connecting rod pads (13) are attached to the side walls of the vertical plate (2) corresponding to the auxiliary ear plate (12) and the rear connecting rod section (8); and the pin (11) is provided through the connecting rod pad (13).

6. The connection box of the upper bearing base of the advance support according to claim 1, characterized in that: A pressure plate (14) and a stopper (15) for mounting in conjunction with the hydraulic telescopic support are provided on the side walls of the vertical plate (2) corresponding to the front hydraulic column section (6) and the rear hydraulic column section (10).

7. The connection box of the upper bearing base of the advance support according to claim 1, characterized in that: Cover plates (16) are provided on the front hydraulic column section (6) and the rear hydraulic column section (10) at positions close to the corresponding push seats (3), and a cover plate (16) is also provided on the transition section (9).

8. The connection box of the upper bearing base of the advance support according to claim 7, characterized in that: A valve group positioning seat (17) is provided on the cover plate (16) near the front push seat position.

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