Small-radius turning digging and anchoring all-in-one machine

Abstract

The utility model discloses a small-radius turning digging and anchoring all-in-one machine which comprises a digging and anchoring main machine, a power trolley providing power for the digging and anchoring main machine and a belt conveyor. A trolley frame, a first spherical hinge connecting base used for being hinged to the main machine, a first hinge base used for being hinged to the belt conveyor and a rotary supporting mechanism are arranged on the trolley chassis, a second hinge base is arranged on the belt conveyor, and the second hinge base is hinged to the first hinge base through a first pin shaft. The first pin shaft is arranged perpendicular to the trolley chassis, and the rotation supporting mechanism drives the belt conveyor to swing with the first pin shaft as the axis. Left-right angle deviation between every two of the digging and anchoring main machine, the power trolley and the belt conveyor can be achieved, wall collision can be prevented, and the turning angle of the digging and anchoring all-in-one machine is reduced to 1.8 m, so that the digging and anchoring all-in-one machine adapts to the roadway working condition that continuous mining and continuous filling need repeated turning, and it can be guaranteed that three-lower coal pressing is smoothly conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a small-radius turning excavator-anchoring integrated machine. Background Art

[0002] Coal, as an industrial power fuel, is commonly used in power generation, transportation, metallurgy, and other fields. It is also an important chemical raw material. However, with the increase in the scale and age of coal mining, many mines are facing the dilemma of running out of coal. As stranded resources, "three-layer coal" (coal resources under buildings, railways, and water bodies) are gradually being put on the mining agenda. As an efficient and safe mining method, continuous mining and filling can continuously carry out coal mining and filling operations, improving mining efficiency, reducing labor input, and protecting the environment. It is a key means of "three-layer coal" mining.

[0003] The existing integrated miner and anchor machine has a large body size and is often followed by an anchor trolley and a belt conveyor. It has a large turning radius and is extremely inflexible underground. It is not suitable for multiple parallel tunnels that require frequent turns in the continuous mining and filling process, which seriously limits the mining of three-down coal. Utility Model Content

[0004] The utility model provides a small-radius turning integrated digging and anchoring machine to solve the technical problems that the existing integrated digging and anchoring machine has a large turning radius, is extremely inflexible underground, is extremely unsuitable for multiple parallel tunnels that require frequent turning in the continuous mining and filling process, and seriously limits the mining of three-down coal.

[0005] According to one aspect of the utility model, a small-radius turning anchor-digger is provided, comprising an anchor-digger main unit, a power trolley and a belt conveyor for providing power to the anchor-digger main unit, the power trolley comprising a trolley chassis, a frame, a first ball-jointed connection seat for articulating the main unit, a first articulated seat for articulating the belt conveyor and a slewing support mechanism are arranged on the trolley chassis, a second articulated seat is arranged on the belt conveyor, the second articulated seat is articulated with the first articulated seat by a first pin shaft, the first pin shaft is arranged perpendicular to the trolley chassis, and the slewing support mechanism drives the belt conveyor to swing with the first pin shaft as the axis.

[0006] Furthermore, the rotary support mechanism includes a flange arranged on the chassis, an inner ring rotatably arranged on the flange, an outer ring engaged with the inner ring, and a driving mechanism for driving the inner ring to rotate. The outer ring drives the belt conveyor to swing around the first pin shaft as the axis through a gear assembly.

[0007] Furthermore, the bottom surface of the inner ring and the top surface of the flange are centrally connected via a stop structure.

[0008] Furthermore, a support device for abutting against the roadway ground is arranged on the trolley chassis.

[0009] Furthermore, the support device includes a clamping seat for connecting the trolley chassis, a first telescopic oil cylinder arranged on the clamping seat, and a leg support plate driven by the first telescopic oil cylinder to abut against the bottom surface of the roadway.

[0010] Furthermore, an anti-slip structure is arranged on the leg support plate.

[0011] Furthermore, the tunneling and bolting machine includes a main machine chassis, and a second ball hinge connecting seat adapted to the first ball hinge connecting seat, a crawler for traveling, and a cutting device are arranged on the main machine chassis.

[0012] Furthermore, the axial length W1 of the cutting device is 4500m - 5500m, the distance W2 between the front end of the cutting device and the rear end of the crawler is ≤ 6700mm, and the distance W3 between the outer sides of the two crawlers of the tunneling and bolting machine is ≤ 3000mm.

[0013] Furthermore, the width of the power trolley is less than the distance W3 between the outer sides of the two crawlers of the tunneling and bolting machine.

[0014] Furthermore, the belt conveyor includes a bracket and a second telescopic oil cylinder. The bracket is hinged to the second hinge seat through a second pin shaft, the second pin shaft is arranged perpendicular to the first pin shaft, and the two ends of the second telescopic oil cylinder are respectively hinged to the bracket and the second hinge seat.

[0015] The utility model has the following beneficial effects:

[0016] The small-radius turning tunneling and bolting machine of the utility model adopts a three-section structure. The power trolley and the tunneling and bolting machine are connected by a ball hinge. The slewing support mechanism of the power trolley can drive the belt conveyor to swing around the first pin shaft as the axis, and can realize the left and right angular offsets between the tunneling and bolting machine, the power trolley, and the belt conveyor in pairs, which is convenient for the power trolley to follow the machine and adjust the relative position of the roadway, can effectively reduce the turning radius of the tunneling and bolting machine, and prevent wall collision; Since the hydraulic system and the electrical system of the tunneling and bolting machine are integrated on the power trolley, there is no need to arrange the hydraulic system and the electrical system on the tunneling and bolting machine, the width of the tunneling and bolting machine can be compressed, and the turning radius of the tunneling and bolting machine is reduced to 1.8m, so as to adapt to the roadway working conditions that require multiple turns in continuous mining and filling, and ensure the smooth progress of the mining of the coal under the "three-under" pressure.

[0017] In addition to the purposes, features, and advantages described above, the utility model has other purposes, features, and advantages. The following will refer to the drawings to make a further detailed description of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and shall not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic structural diagram of a small-radius turning tunneling and bolting machine according to a preferred embodiment of the present utility model;

[0020] Figure 2 is a schematic turning diagram of a small-radius turning tunneling and bolting machine according to a preferred embodiment of the present utility model;

[0021] Figure 3 is a schematic structural diagram of a tunneling and bolting mainframe according to a preferred embodiment of the present utility model;

[0022] Figure 4 is a schematic structural diagram of a power car according to a preferred embodiment of the present utility model;

[0023] Figure 5 is a schematic structural diagram of a slewing support mechanism according to a preferred embodiment of the present utility model;

[0024] Figure 6 is a schematic structural diagram of a support device according to a preferred embodiment of the present utility model.

[0025] Legend description:

[0026] 1. Tunneling and bolting mainframe; 11. Mainframe chassis; 12. Second spherical hinge connection seat; 13. Crawler; 14. Cutting device; 2. Power car; 21. First spherical hinge connection seat; 22. Frame; 23. Car chassis; 24. Slewing support mechanism; 241. Flange; 242. Inner ring; 243. Outer ring; 25. First hinge seat; 26. First pin shaft; 27. Support device; 271. First telescopic oil cylinder; 272. Clamp; 273. Leg support plate; 3. Belt conveyor; 31. Second hinge seat; 32. Bracket; 34. Second telescopic oil cylinder; 33. Second pin shaft. Detailed implementation manners

[0027] The following will explain the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways defined and covered by the following.

[0028] Please refer to together Figures 1 to 6, for the small-radius turning roadheader-anchoring machine of this embodiment, with the direction of equipment construction progress as the front end, it includes a roadheader-anchoring mainframe 1, a power trolley 2 that provides power for the roadheader-anchoring mainframe 1, and a belt conveyor 3. The power trolley 2 includes a trolley chassis 23. On the trolley chassis 23, there are arranged a frame 22, a first ball hinge connection seat 21 for hinging the roadheader-anchoring mainframe 1, a first hinge seat 25 for hinging the belt conveyor 3, and a slewing support mechanism 24. On the belt conveyor 3, there is arranged a second hinge seat 31. The second hinge seat 31 and the first hinge seat 25 are hinged through a first pin shaft 26. The first pin shaft 26 is arranged perpendicular to the trolley chassis 23. The slewing support mechanism 24 drives the belt conveyor 3 to swing around the first pin shaft 26 as the axis.

[0029] The small-radius turning roadheader-anchoring machine of this embodiment adopts a three-section structure. The power trolley 2 and the roadheader-anchoring mainframe 1 are connected by a ball hinge. The slewing support mechanism 24 of the power trolley 2 can drive the belt conveyor 3 to swing around the first pin shaft 26 as the axis, and can realize the left-right angular offset between the roadheader-anchoring mainframe 1, the power trolley 2, and the belt conveyor 3 pairwise, which is convenient for the power trolley to follow the machine and convenient for the power trolley to adjust the relative position of the roadway, can effectively reduce the turning radius of the roadheader-anchoring machine, and prevent hitting the wall; Since the hydraulic system and electrical system of the roadheader-anchoring mainframe 1 are integrated on the power trolley 2, there is no need to arrange the hydraulic system and electrical system on the roadheader-anchoring mainframe 1, which can compress the width of the roadheader-anchoring mainframe 1. The turning radius of the roadheader-anchoring machine is reduced to 1.8 m, so as to adapt to the roadway working conditions that require multiple turns in continuous mining and continuous filling, and can ensure the smooth progress of the mining of the coal under the "three-under" conditions.

[0030] As Figure 4 and Figure 5 shown, in this embodiment, the slewing support mechanism 24 includes a flange 241 arranged on the trolley chassis 23, an inner ring 242 rotatably arranged on the flange 241, an outer ring 243 meshing with the inner ring 242, and a driving mechanism for driving the inner ring 242 to rotate. The outer ring 243 drives the belt conveyor 3 to swing around the first pin shaft 26 as the axis through a gear assembly. When the driving mechanism drives the outer ring 243 to rotate through the inner ring 242, an angular offset occurs between the belt conveyor 3 and the power trolley 2. Through the active adjustment of the slewing support mechanism 24, it can assist in adjusting the position of the equipment in the roadway and ensure that the equipment is in the relative middle position of the roadway.

[0031] As Figure 5 shown, in this embodiment, the bottom surface of the inner ring 242 and the top surface of the flange 241 are centering-connected through a spigot structure. There is an annular protrusion arranged on the top surface of the flange 241, and an annular groove adapted to the annular protrusion is arranged on the bottom surface of the inner ring 242. The annular protrusion can be snapped into the annular groove to achieve centering connection, and it does not affect the relative rotation between the inner ring 242 and the flange 241. The structure is simple, the disassembly and assembly are convenient, and the efficiency of maintenance and repair can be improved.

[0032] As Figure 4As shown in the figure, in this embodiment, a support device 27 for abutting against the roadway floor is arranged on the trolley chassis 23. During cutting, the support device 27 abuts against the roadway bottom surface, which can prevent the small-radius turning roadheader-anchoring machine from retreating, thus ensuring the construction support.

[0033] As Figure 6 shown in the figure, in this embodiment, the support device 27 includes a clamping seat 272 for connecting the trolley chassis 23, a first telescopic oil cylinder 271 arranged on the clamping seat 272, and a leg support plate 273 driven by the first telescopic oil cylinder 271 to abut against the roadway bottom surface. During cutting, the first telescopic oil cylinder 271 extends, so that the leg support plate 273 abuts against the roadway bottom surface, which can prevent the small-radius turning roadheader-anchoring machine from retreating, thus ensuring the construction support.

[0034] In this embodiment, an anti-slip structure is arranged on the leg support plate 273 to increase the friction between the leg support plate 273 and the roadway bottom surface and prevent the small-radius turning roadheader-anchoring machine from retreating. Optionally, the anti-slip structure is a nail-shaped structure, a bump structure or a continuously bent stripe structure.

[0035] As Figure 3 shown in the figure, in this embodiment, the roadheader-anchoring mainframe 1 includes a mainframe chassis 11, on which a second ball hinge connecting seat 12 adapted to the first ball hinge connecting seat 21, a crawler 13 for walking and a cutting device 14 are arranged.

[0036] As Figure 3 shown in the figure, in this embodiment, the axial length W1 of the cutting device 14 is 4500m - 5500mmm. Both sides of the cutting device 14 have a certain telescopic ability, that is, the axial length W1 of the cutting device 14 can be adjusted according to requirements, which can increase the applicable range; the distance W2 between the front end of the cutting device 14 and the rear end of the crawler 13 is ≤ 6700mm, and the distance W3 between the outer sides of the two crawlers 13 of the roadheader-anchoring mainframe 1 is ≤ 3000mm; the roadheader-anchoring mainframe 1 adopts a "V"-shaped design with a wider front and a narrower rear, which can effectively reduce the turning radius R. Optionally, the axial length W1 of the cutting device 14 is 5000mm, the distance W2 between the front end of the cutting device 14 and the rear end of the crawler 13 is 6220mm, and the distance W3 between the outer sides of the two crawlers 13 of the roadheader-anchoring mainframe 1 is 2885mm.

[0037] As Figure 2 shown in the figure, in this embodiment, the width W4 of the power trolley 2 is less than the distance W3 between the outer sides of the two crawlers 13 of the roadheader-anchoring mainframe 1, which can further reduce the turning radius R.

[0038] As Figure 4As shown in the figure, in this embodiment, the belt conveyor 3 includes a bracket 32 and a second telescopic oil cylinder 34. The bracket 32 is hinged to the second hinge seat 31 through a second pin shaft 33. The second pin shaft 33 is arranged perpendicular to the first pin shaft 26. Both ends of the second telescopic oil cylinder 34 are hinged to the bracket 32 and the second hinge seat 31 respectively. Through the second telescopic oil cylinder 34, the angle between the belt conveyor 3 and the roadway ground can be adjusted by telescoping, thereby improving the passing performance of the tunneling and bolting machine with a small turning radius.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A small radius turning anchoring and digging machine, characterized in that: The invention comprises a main anchor mining machine (1), a power trolley (2) and a belt conveyor (3) for providing power to the main anchor mining machine (1). The power trolley (2) comprises a trolley chassis (23). The trolley chassis (23) is provided with a frame (22), a first ball joint connection seat (21) for articulating the main anchor mining machine (1), a first articulated seat (25) for articulating the belt conveyor (3), and a slewing support mechanism (24). The belt conveyor (3) is provided with a second articulated seat (31). The second articulated seat (31) is articulated with the first articulated seat (25) via a first pin shaft (26). The first pin shaft (26) is arranged perpendicular to the trolley chassis (23). The slewing support mechanism (24) drives the belt conveyor (3) to swing around the first pin shaft (26).

2. The small radius turning anchoring and digging machine according to claim 1, characterized in that: The rotary support mechanism (24) includes a flange (241) arranged on the trolley chassis (23), an inner ring (242) rotatably arranged on the flange (241), an outer ring (243) meshed with the inner ring (242), and a driving mechanism for driving the inner ring (242) to rotate. The outer ring (243) drives the belt conveyor (3) to swing around the first pin shaft (26) through a gear assembly.

3. The small radius turning anchoring and digging machine according to claim 2, characterized in that: The bottom surface of the inner ring (242) and the top surface of the flange (241) are centrally connected via a stop structure.

4. The small radius turning anchor miner according to any one of claims 1 to 3, characterized in that: A supporting device (27) for contacting the tunnel ground is arranged on the trolley chassis (23).

5. The small radius turning anchoring and digging machine according to claim 4, characterized in that: The supporting device (27) comprises a base (272) for connecting to the trolley chassis (23), a first telescopic oil cylinder (271) arranged on the base (272), and a leg support plate (273) driven by the first telescopic oil cylinder (271) to abut against the bottom surface of the tunnel.

6. The small radius turning anchor-digger according to claim 5, characterized in that: The leg support plate (273) is provided with an anti-slip structure.

7. The small radius turning anchoring and digging machine according to claim 4, characterized in that: The anchor mining machine (1) comprises a machine chassis (11), on which a second ball joint connection seat (12) adapted to the first ball joint connection seat (21), a crawler track (13) for walking, and a cutting device (14) are arranged.

8. The small radius turning anchoring and digging machine according to claim 7, characterized in that: The axial length W1 of the cutting device (14) is 4500m to 5500m, the distance W2 between the front end of the cutting device (14) and the rear end of the crawler (13) satisfies W2 ≤ 6700mm, and the distance W3 between the outer sides of the two crawlers (13) of the tunneling and bolting jumbo (1) satisfies W3 ≤ 3000mm.

9. The small-radius turning tunneling and bolting jumbo according to claim 8, wherein the width of the power car (2) is less than the distance W3 between the outer sides of the two crawlers (13) of the tunneling and bolting jumbo (1).

10. The small-radius turning tunneling and bolting jumbo according to claim 1, wherein the belt conveyor (3) includes a bracket (32) and a second telescopic oil cylinder (34). The bracket (32) is hinged to the second hinge seat (31) through a second pin shaft (33). The second pin shaft (33) is arranged perpendicular to the first pin shaft (26). Both ends of the second telescopic oil cylinder (34) are respectively hinged to the bracket (32) and the second hinge seat (31).

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