Cantilever type digging and anchoring device

Abstract

The utility model aims to disclose a cantilever type digging and anchoring device, which relates to the technical field of coal mine tunnel construction and comprises a chassis component, a first drill boom component, a second drill boom component and a cutting component arranged at the front end of the chassis component, a temporary supporting assembly is arranged at the top of the cutting assembly; the first moving assembly and the second moving assembly are arranged on the two sides of the chassis assembly correspondingly. The first moving assembly comprises a first longitudinal moving assembly and a second longitudinal moving assembly, and the first moving assembly drives the first drill arm assembly to move front and back; the second moving assembly comprises a third longitudinal moving assembly and a fourth longitudinal moving assembly, and the second moving assembly drives the second drilling arm assembly to move front and back. The drilling machine has the beneficial effects that the two-stage longitudinal moving assemblies of the first drilling arm assembly and the second drilling arm assembly can work at the position of the cutting assembly, the working range is wide, and the working efficiency is high; after the roadway is partially anchored and protected, tunneling is carried out, and the tunneling safety and efficiency are both considered.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine tunnel construction, in particular to a cantilever type anchor digging device. Background Art

[0002] When excavating coal mine tunnels, the excavation speed is usually very fast, and the subsequent support cannot keep up with the excavation speed. In the case of deep excavation, if support is not provided in time, landslides and other safety hazards may occur. The temporary support and anchoring functions of the current tunnel boring machines are not comprehensive enough, which affects the excavation efficiency.

[0003] In view of this, there is an urgent need to develop a cantilever anchor digging device to overcome the above-mentioned defects. Summary of the invention

[0004] The utility model aims to disclose a cantilever anchor digging device.

[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides a cantilever anchor drilling device, comprising a chassis assembly, a first drill arm assembly, a second drill arm assembly and a cutting assembly arranged at the front end of the chassis assembly;

[0006] A temporary support assembly is provided on the top of the cutting assembly;

[0007] A first moving assembly and a second moving assembly are respectively arranged on both sides of the chassis assembly;

[0008] The first moving assembly includes a first longitudinal moving assembly and a second longitudinal moving assembly, and the first moving assembly drives the first drill arm assembly to move forward and backward;

[0009] The second moving assembly includes a third longitudinal moving assembly and a fourth longitudinal moving assembly, and the second moving assembly drives the second drill arm assembly to move forward and backward.

[0010] Preferably, the first longitudinal movement assembly includes a first longitudinal movement cylinder and a first slide rail driven by the first longitudinal movement cylinder.

[0011] Preferably, the second longitudinal movement assembly includes a first slide rail, a first long tooth and a first base, the first long tooth is arranged along the top of the first slide rail, the first base is provided with a first drive assembly and a first power gear, the first power gear cooperates with the first long tooth, and the first drill arm assembly is arranged above the first base.

[0012] Preferably, the third longitudinal movement assembly includes a second longitudinal movement cylinder and a second slide rail driven by the second longitudinal movement cylinder.

[0013] Preferably, the fourth longitudinal movement assembly includes a second slide rail, a second long tooth and a second base, the second long tooth is arranged along the top of the second slide rail, the second base is provided with a second drive assembly and a second power gear, the second power gear cooperates with the second long tooth, and the second drill arm assembly is arranged above the second base.

[0014] Preferably, the first drill boom assembly and the second drill boom assembly are symmetrically arranged;

[0015] The first drill arm assembly comprises a drill arm, a telescopic arm, a swing cylinder, a pitch cylinder, a first slewing assembly, a second slewing assembly and a pedal assembly.

[0016] Preferably, the swing cylinder drives the telescopic arm to swing left and right, the pitch cylinder drives the telescopic arm to pitch, the first swivel assembly drives the drill arm to rotate, and the second swivel assembly drives the first swivel assembly to rotate.

[0017] Preferably, the pedal assembly comprises a pedal and a leveling cylinder, and the leveling cylinder drives the pedal to be in a horizontal state.

[0018] Preferably, the temporary support assembly includes an articulated seat, a tilting cylinder and a support arm hinged to the articulated seat, and the tilting cylinder drives the support arm to pitch.

[0019] Preferably, a telescopic support frame is provided at the end of the support arm.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] After the cantilevered anchoring device of the utility model has excavated a certain distance, the cutting assembly stops working and is placed on the ground, the temporary support assembly is started to perform temporary support, and the top and the side of the tunnel of the excavated part are anchored by the first drill arm assembly and the second drill arm assembly. The two-stage longitudinal moving assembly of the first drill arm assembly and the second drill arm assembly enables it to operate at the position of the cutting assembly, and the operating range is wide. After partially anchoring the tunnel, the temporary support assembly, the first drill arm assembly and the second drill arm assembly are folded up, and excavation is continued, taking into account the safety and efficiency of excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the cantilever anchor digging device of the utility model.

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the first drill arm assembly and the first moving assembly of the utility model.

[0024] Figure 3 It is a partially enlarged schematic diagram of the second longitudinal shift assembly of the utility model.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the temporary support assembly of the utility model.

[0026] Among them, 1. chassis assembly; 2. first drill arm assembly; 3. second drill arm assembly; 4. cutting assembly; 5. temporary support assembly; 51. articulated seat; 52. support arm; 53. flip cylinder; 54. telescopic support frame; 6. first moving assembly; 61. first longitudinal moving assembly; 611. first longitudinal moving cylinder; 612. first slide rail; 62. second longitudinal moving assembly; 621. first long tooth; 622. first base; 6221. first drive assembly; 6222. first power gear; 7. second moving assembly. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] The specific implementation process of the present utility model is described below through multiple embodiments.

[0030] Example 1

[0031] See also Figures 1 to 4 , this embodiment discloses a specific implementation of a cantilever anchor digging device.

[0032] See also Figures 1 to 4The cantilever anchor drilling device comprises a chassis assembly 1, a first drill arm assembly 2, a second drill arm assembly 3 and a cutting assembly 4 arranged at the front end of the chassis assembly 1; a temporary support assembly 5 is arranged on the top of the cutting assembly 4; a first moving assembly 6 and a second moving assembly 7 are respectively arranged on both sides of the chassis assembly 1; the first moving assembly 6 comprises a first longitudinal moving assembly 61 and a second longitudinal moving assembly 62, and the first moving assembly 6 drives the first drill arm assembly 2 to move forward and backward; the second moving assembly 7 comprises a third longitudinal moving assembly and a fourth longitudinal moving assembly (not shown due to obstruction, and its working principle is the same as the first longitudinal moving assembly 61 and the second longitudinal moving assembly 62), and the second moving assembly 7 drives the second drill arm assembly 3 to move forward and backward.

[0033] Specifically, after the cantilevered anchoring device of this embodiment has excavated a certain distance, the cutting assembly 4 stops working and is placed on the ground, the temporary support assembly 5 is started for temporary support, and the top and side of the tunnel of the excavated part are anchored by the first drill arm assembly 2 and the second drill arm assembly 3. The first drill arm assembly 2 and the second drill arm assembly 3 are respectively moved to the two sides of the cutting assembly 4 through their two-stage longitudinal movement assemblies (the first longitudinal movement assembly 61 and the second longitudinal movement assembly 62, the third longitudinal movement assembly and the fourth longitudinal movement assembly) to perform operations. The operating range is wide. After partially anchoring the tunnel, the temporary support assembly 5, the first drill arm assembly 2 and the second drill arm assembly 3 are retracted, and excavation is continued, taking into account the safety and efficiency of excavation.

[0034] See also Figure 2 and Figure 3 The working principle of the first moving assembly 6 is as follows: the first moving assembly 6 includes a first longitudinal moving assembly 61 and a second longitudinal moving assembly 62, wherein the first longitudinal moving assembly 61 includes a first longitudinal moving oil cylinder 611 and a first slide rail 612 driven by the first longitudinal moving oil cylinder 611; the second longitudinal moving assembly 62 includes a first slide rail 612, a first long tooth 621 and a first base 622, wherein the first long tooth 621 is arranged along the top of the first slide rail 612, the first base 622 is provided with a first driving assembly 6221 and a first power gear 6222, and the first power gear 6222 In cooperation with the first long tooth 621, the first drill arm assembly 2 is arranged above the first base 622; the first longitudinal movement cylinder 611 drives the first slide rail 612 and drives the first base 622 and the first drill arm assembly 2 to achieve the first level of longitudinal movement, and the first power gear 6222 cooperates with the first long tooth 621 to drive the first base 622 and the first drill arm assembly 2 to achieve the second level of longitudinal movement, so that the first drill arm assembly 2 can extend to the head 41 of the cutting assembly 4, that is, the sides and tops of all the cut tunnels can be anchored, providing a safe working environment for the next step of continuing excavation.

[0035] Similarly, the third longitudinal movement assembly includes a second longitudinal movement cylinder and a second slide rail driven by the second longitudinal movement cylinder; the fourth longitudinal movement assembly includes a second slide rail, a second long tooth and a second base, the second long tooth is arranged along the top of the second slide rail, the second base is provided with a second drive assembly and a second power gear, the second power gear cooperates with the second long tooth, and the second drill arm assembly is arranged above the second base; since the working principles of the third and fourth longitudinal movement assemblies are the same as those of the first and second longitudinal movement assemblies 61 and 62, their purpose is to drive the second drill arm assembly 3 to extend to the head 41 of the cutting assembly 4, and the details will not be repeated.

[0036] See also Figures 1 to 3 The working principles of the first drill arm assembly 2 and the second drill arm assembly 3 are as follows. The first drill arm assembly 2 and the second drill arm assembly 3 are symmetrically arranged and have the same structure. The first drill arm assembly 2 is taken as an example for explanation below: the first drill arm assembly 2 includes a drill arm 21, a telescopic arm 22, a swing angle cylinder 23, a pitch cylinder 24, a first rotary assembly 25, a second rotary assembly 26 and a pedal assembly 27, wherein the swing cylinder 23 drives the telescopic arm 22 to swing left and right with the first base 622 as a fulcrum, and the pitch cylinder 24 drives the telescopic arm 22 to pitch with the first base 622 as a fulcrum, and the telescopic arm 22 can further drive The drill arm 21 moves forward and backward, and the first rotating assembly 25 drives the drill arm 21 to rotate, so that the drill arm 21 is converted between the top anchor and the auxiliary anchor or adjusts its anchor driving in the opposite direction; the second rotating assembly 26 drives the first rotating assembly 25 to rotate, and then drives the drill arm 21 to rotate, so that the drill arm 21 can convert between the left top anchor driving and the middle top anchor driving when driving the top anchor, with greater flexibility; the pedal assembly 27 includes a pedal 271 and a leveling cylinder 272. When the telescopic arm 22 has a certain pitch angle with the ground, the leveling cylinder 272 drives the pedal 271 to be in a horizontal state, so that the operator can stand steadily and operate.

[0037] See also Figure 4 The working principle of the temporary support assembly 5 is as follows: the temporary support assembly 5 includes an articulated seat 51, a tilting cylinder 53 and a support arm 52 hinged to the articulated seat 51, the tilting cylinder 53 is hinged to the cutting assembly 4, the tilting cylinder 53 drives the support arm 52 to pitch, and a telescopic support frame 54 is arranged at the end of the support arm 52. During the cutting operation, the support arm 52 lies flat above the cutting assembly 4. When temporary support is needed, the support arm 52 is lifted and the telescopic support frame 54 is used to support the top of the pillar tunnel to achieve temporary support. Under the support condition, the first drill arm assembly 2 and the second drill arm assembly 3 are adjusted to the appropriate position and posture for anchoring operation.

Claims

1. Cantilever anchor digging device, characterized in that: It comprises a chassis assembly, a first drill arm assembly, a second drill arm assembly and a cutting assembly arranged at the front end of the chassis assembly; A temporary support assembly is provided on the top of the cutting assembly; A first moving assembly and a second moving assembly are respectively arranged on both sides of the chassis assembly; The first moving assembly includes a first longitudinal moving assembly and a second longitudinal moving assembly, and the first moving assembly drives the first drill arm assembly to move forward and backward; The second moving assembly includes a third longitudinal moving assembly and a fourth longitudinal moving assembly, and the second moving assembly drives the second drill arm assembly to move forward and backward.

2. The cantilever anchor digging device according to claim 1, characterized in that: The first longitudinal movement assembly includes a first longitudinal movement cylinder and a first slide rail driven by the first longitudinal movement cylinder.

3. The cantilever anchor digging device according to claim 2, characterized in that: The second longitudinal movement assembly includes a first slide rail, a first long tooth and a first base. The first long tooth is arranged along the top of the first slide rail. The first base is provided with a first driving assembly and a first power gear. The first power gear cooperates with the first long tooth. The first drill arm assembly is arranged above the first base.

4. The cantilever anchor digging device according to claim 1, characterized in that: The third longitudinal movement assembly includes a second longitudinal movement cylinder and a second slide rail driven by the second longitudinal movement cylinder.

5. The cantilever anchor digging device according to claim 4, characterized in that: The fourth longitudinal movement assembly includes a second slide rail, a second long tooth and a second base. The second long tooth is arranged along the top of the second slide rail. The second base is provided with a second drive assembly and a second power gear. The second power gear cooperates with the second long tooth. The second drill arm assembly is arranged above the second base.

6. The cantilever anchor digging device according to any one of claims 1 to 5, characterized in that: The first drill boom assembly and the second drill boom assembly are symmetrically arranged; The first drill arm assembly comprises a drill arm, a telescopic arm, a swing cylinder, a pitch cylinder, a first slewing assembly, a second slewing assembly and a pedal assembly.

7. The cantilever anchor digging device according to claim 6, characterized in that: The swing cylinder drives the telescopic arm to swing left and right, the pitch cylinder drives the telescopic arm to pitch, the first swivel assembly drives the drill arm to rotate, and the second swivel assembly drives the first swivel assembly to rotate.

8. The cantilever anchor digging device according to claim 6, characterized in that: The pedal assembly comprises a pedal and a leveling cylinder, and the leveling cylinder drives the pedal to be in a horizontal state.

9. The cantilever anchor digging device according to any one of claims 1 to 5, characterized in that: The temporary support assembly includes an articulated seat, a tilting cylinder and a support arm hinged to the articulated seat, and the tilting cylinder drives the support arm to pitch.

10. The cantilever anchor digging device according to claim 9, characterized in that: A telescopic support frame is arranged at the end of the support arm.

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