Anchor breaking device for hydraulic support with telescopic side protection mechanism and anchor breaking method of anchor breaking device

Abstract

The invention relates to the technical field of coal mine supporting equipment, in particular to an anchor breaking device for a hydraulic support with a telescopic side protection mechanism and an anchor breaking method of the anchor breaking device. The device comprises two anchor breaking mechanisms; the two anchor breaking mechanisms are located on the two sides of the telescopic side protecting mechanism, the two anchor breaking mechanisms are of the same structure and each comprise a connecting frame, a rotating assembly, a rocker arm assembly and an anchor breaking piece, the top of the connecting frame is fixedly connected with the bottom of the top beam, and the fixed end of the rotating assembly is hinged to the side wall of the connecting frame; the bottom of the rotating end of the rotating assembly is rotationally connected with the top wall of the bottom of the connecting frame. The mounting end of the rocker arm assembly is hinged to the outer wall of the rotating assembly, and the anchor breaking piece is mounted at the top of the rocker arm assembly. By arranging the two anchor breaking mechanisms of the same structure, the anchor breaking device can conduct anchor breaking operation at the same time, the working efficiency of anchor breaking is improved, and the operation time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine support equipment, and particularly to an anchor-breaking device for a hydraulic support with a telescopic rib protection mechanism and an anchor-breaking method thereof. Background Art

[0002] In mining areas in Inner Mongolia and Shaanxi regions, especially in places like the mining area of Shenhua Shendong Coal Group, the roof and floor conditions are relatively favorable, and the mine safety management measures are relatively perfect. For example, in roadway reinforcement, reasonable bolt and cable techniques are generally used for enhanced support, ensuring the safety and stability of the mining operation environment. However, for some mines with particularly hard roof structures, this hardness may cause large-scale caving in the goaf, thus triggering serious safety risks.

[0003] During the coal mining process, in order to ensure the safety of the coal mining face and achieve high-efficiency production, hydraulic supports are widely used. Especially those hydraulic supports equipped with telescopic rib protection mechanisms can provide more effective support for the coal wall and roof, greatly reducing the occurrence probability of accidents such as rib spalling (rib spalling in coal mines refers to the natural caving of the coal wall under the action of mine pressure) and roof fall (roof fall in coal mines refers to the natural caving of the upper ore strata during underground mining).

[0004] As the coal mining face continuously advances, the original bolt and cable supports need to be removed in a timely manner, that is, the so-called anchor-breaking operation is carried out. However, traditional anchor-breaking methods often rely on manual operation, which not only has a high labor intensity and low efficiency, but also has relatively high safety hazards in the complex and changeable underground environment. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] In view of the above-mentioned disadvantages and deficiencies of the prior art, the present invention provides an anchor-breaking device for a hydraulic support with a telescopic rib protection mechanism and an anchor-breaking method thereof, which solves the technical problems that traditional anchor-breaking methods often rely on manual operation, have a high labor intensity, low efficiency, and relatively high safety hazards.

[0007] (2) Technical Solutions

[0008] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0009] On the one hand, the present invention provides an anchor-breaking device for a hydraulic support with a telescopic rib protection mechanism. The hydraulic support includes a roof beam, and the telescopic rib protection mechanism is installed at the front end of the roof beam. The anchor-breaking device includes two anchor-breaking mechanisms. The two anchor-breaking mechanisms are located on both sides of the telescopic rib protection mechanism, and the structures of the two anchor-breaking mechanisms are the same. Each includes a connecting frame, a rotating assembly, a rocker arm assembly, and an anchor-breaking member. The top of the connecting frame is fixedly connected to the bottom of the roof beam. The fixed end of the rotating assembly is hinged to the side wall of the connecting frame, and the bottom of the rotating end of the rotating assembly is rotatably connected to the top wall of the bottom of the connecting frame. The mounting end of the rocker arm assembly is hinged to the outer wall of the rotating assembly, and the anchor-breaking member is installed at the top of the rocker arm assembly. The rocker arm assembly can swing vertically back and forth around its hinge with the rotating assembly to drive the anchor-breaking member to break the bolts and cables in the coal mine. The rotating assembly can drive the rocker arm assembly to rotate around the axis of the rotating end of the rotating assembly to change the anchor-breaking position of the rocker arm assembly and the anchor-breaking member.

[0010] Preferably, the rocker arm assembly includes a rocker arm and a swing jack. The rocker arm includes a vertical section and a horizontal section. The top of the vertical section is connected to the anchor-breaking member, and the bottom of the vertical section is connected to one end of the horizontal section. The other end of the horizontal section is hinged to the outer wall of the rotating assembly. The swing jack is located below the horizontal section. The fixed end of the swing jack is hinged to the outer wall of the rotating assembly, and the telescopic end of the swing jack is hinged to the bottom of the horizontal section. The telescopic end of the swing jack can drive the horizontal section to rotate around the axis of its hinge with the outer wall of the rotating assembly, so that the vertical section swings back and forth synchronously with the rotation of the horizontal section to drive the anchor-breaking member to break the bolts and cables in the coal mine.

[0011] Preferably, the rocker arm further includes a first telescopic arm and a first telescopic jack. The fixed end of the first telescopic arm is connected to the end of the horizontal section far from the rotating assembly, and the telescopic end of the first telescopic arm is connected to the bottom of the vertical section. The first telescopic jack is located above the first telescopic arm. A first mounting plate is sleeved on the outer wall of the horizontal section. The fixed end of the first telescopic jack is hinged to the first mounting plate, and the telescopic end of the first telescopic jack is hinged to the side wall of the bottom of the vertical section. The telescopic end of the first telescopic jack can be telescoped to drive the first telescopic arm and the vertical section to horizontally telescope along the axis of the first telescopic jack at the same time to change the horizontal length of the horizontal section.

[0012] Preferably, the rocker arm further includes a connecting member, a second telescopic arm, and a second telescopic jack; one end of the connecting member is connected to the telescopic end of the first telescopic arm, and the telescopic end of the first telescopic jack is hinged to the connecting member. The other end of the connecting member is connected to the fixed end of the second telescopic arm, and the telescopic end of the second telescopic arm is connected to the bottom of the vertical section; a second mounting plate is sleeved on the fixed end of the second telescopic arm. The second telescopic jack is arranged vertically, the fixed end of the second telescopic jack is hinged to the second mounting plate, and the telescopic end of the second telescopic jack is hinged to the vertical section; the telescopic end of the second telescopic jack can be telescoped to drive the second telescopic arm and the vertical section to vertically telescope along the axis of the second telescopic jack at the same time, so as to change the height of the vertical section.

[0013] Preferably, the rotating assembly includes a rotating jack, a fixed shaft, and a sleeve; the bottom of the fixed shaft is fixedly installed on the bottom wall of the top of the connecting frame, the sleeve is sleeved on the outer wall of the fixed shaft, and one end of the horizontal section facing the sleeve is hinged to the outer wall of the sleeve. The fixed end of the swing jack is hinged to the outer wall of the sleeve; the rotating jack is arranged horizontally, the fixed end of the rotating jack is hinged to the side wall of the connecting frame, and the telescopic end of the rotating jack is hinged to the outer wall of the sleeve; the telescopic end of the rotating jack can be telescoped to drive the sleeve to rotate around the axis of the fixed shaft, thereby driving the rocker arm assembly to rotate around the axis of the fixed shaft.

[0014] Preferably, the included angle range between the rocker arm assembly in the initial position and the maximum rotation angle is 0°-21°.

[0015] Preferably, the anchor-breaking device further includes a rotating mechanism; the rotating mechanism is installed inside the vertical section, the top of the rotating mechanism passes through the top of the vertical section and is connected to the anchor-breaking member, and the rotating mechanism can drive the anchor-breaking member to rotate around the axis of the rotating mechanism to change the angle between the anchor-breaking member and the horizontal center line of the vertical section.

[0016] Preferably, the rotation mechanism includes a gear, a mounting shaft, a rotating shaft, a turntable, a protective housing, and two driving members; an installation space is provided inside the vertical section, the gear is rotatably mounted on the bottom wall inside the installation space through the mounting shaft, a part of the gear passes through the outer wall of the vertical section and is exposed outside, the bottom of the rotating shaft is connected to the top of the gear, the top of the rotating shaft passes through the top of the vertical section and is connected to the bottom of the turntable, and the top of the turntable is connected to the anchor-breaking member; the protective housing is sleeved on the outer wall of the vertical section, the two driving members are respectively located on both sides of the vertical section, the fixed ends of the two driving members are connected to the inner wall of the protective housing, and the driving ends of the two driving members are respectively meshed with the part of the gear exposed outside the vertical section; the two driving members can respectively drive the gear to rotate, so that the gear can drive the rotating shaft and the turntable to rotate at the same time, thereby driving the anchor-breaking member to rotate, so as to change the angle between the anchor-breaking member and the horizontal midline of the vertical section.

[0017] Preferably, the driving member is a telescopic cylinder, and teeth are provided on one side of the piston rod of the telescopic cylinder facing the gear, and the teeth of the piston rod are meshed with the gear, so that the expansion and contraction of the telescopic cylinder drives the gear to rotate.

[0018] On the other hand, the present invention provides an anchor-breaking method for an anchor-breaking device for a hydraulic support with a telescopic rib protection mechanism, including the above-mentioned anchor-breaking device, and further including the following steps:

[0019] S1: Temporarily support the coal wall;

[0020] S11: Drive the telescopic rib protection mechanism so that the telescopic rib protection mechanism temporarily supports the coal wall;

[0021] S2: Determine the anchor-breaking position;

[0022] S21: Drive the rotating assembly to rotate on the bottom top wall of the connecting frame, so as to drive the rocker arm assembly to rotate around the axis of the rotating assembly, so as to determine the anchor-breaking position of the anchor-breaking member;

[0023] S3: Anchor-breaking;

[0024] S31: After determining the anchor-breaking position through step S21, drive the rocker arm assembly to swing vertically back and forth around its hinge joint with the rotating assembly, so as to drive the anchor-breaking member to break the bolts and cables in the coal mine as the rocker arm assembly swings back and forth.

[0025] (III) Beneficial effects

[0026] The beneficial effects of the present invention are:

[0027] By providing two anchor-breaking mechanisms with the same structure and each anchor-breaking mechanism being able to operate independently, the anchor-breaking device can perform anchor-breaking operations simultaneously, improving the working efficiency of anchor-breaking and reducing the operation time. Moreover, by arranging the two anchor-breaking mechanisms on both sides of the telescopic rib protection mechanism, it can avoid interference between the anchor-breaking mechanism and the telescopic rib protection mechanism and prevent collision between the two mechanisms. By providing a rotating assembly and a rocker arm assembly, and the rotating assembly can drive the rocker arm assembly to rotate, so that the anchor-breaking piece can be in different positions, realizing the effective breaking of bolts and cables at different positions by the anchor-breaking piece, thus adapting to different mine environments and mining requirements. Compared with traditional manual anchor-breaking, it significantly improves the speed and efficiency of anchor-breaking work. Moreover, the rocker arm assembly can swing vertically back and forth, ensuring the continuity and high efficiency of the anchor-breaking process. At the same time, the anchor-breaking device also reduces the chance of workers directly participating in high-risk anchor-breaking operations, reduces the risk of workers operating in complex underground environments, and improves the safety level of the entire coal mining face. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. 6 is an overall three-dimensional structural schematic diagram of the anchor-breaking device and its anchor-breaking method for a hydraulic support with a telescopic rib protection mechanism according to the present invention;

[0029] Figure 2 FIG. 10 is a front view structural schematic diagram of the anchor-breaking device of the anchor-breaking device and its anchor-breaking method for a hydraulic support with a telescopic rib protection mechanism according to the present invention;

[0030] Figure 3 FIG. 14 is a structural schematic diagram of the initial position and the maximum rotation angle of the anchor-breaking device of the anchor-breaking device and its anchor-breaking method for a hydraulic support with a telescopic rib protection mechanism according to the present invention;

[0031] Figure 4 FIG. 18 is a front view structural schematic diagram of the vertical section and the rotating mechanism of the anchor-breaking device and its anchor-breaking method for a hydraulic support with a telescopic rib protection mechanism according to the present invention;

[0032] Figure 5 FIG. 22 is an exploded structural schematic diagram of the vertical section and the rotating mechanism of the anchor-breaking device and its anchor-breaking method for a hydraulic support with a telescopic rib protection mechanism according to the present invention;

[0033] Figure 6 FIG. 26 is a structural schematic diagram of the rotating mechanism of the anchor-breaking device and its anchor-breaking method for a hydraulic support with a telescopic rib protection mechanism according to the present invention;

[0034] Figure 7 FIG. 30 is an overall three-dimensional structural schematic diagram of the driving member of the anchor-breaking device and its anchor-breaking method for a hydraulic support with a telescopic rib protection mechanism according to the present invention.

[0035]

DESCRIPTION OF THE REFERENCE NUMERALS

[0036] 1: Roof beam; 2: Telescopic rib protection mechanism; 3: Anchor breaking mechanism; 31: Connecting frame; 32: Rotating assembly; 321: Rotating jack; 322: Fixed shaft; 323: Sleeve; 33: Rocker arm assembly; 331: Rocker arm; 3311: Vertical section; 3311a: Installation space; 3312: Horizontal section; 332: Rocking jack; 333: First telescopic arm; 334: First telescopic jack; 335: First mounting plate; 336: Connecting piece; 337: Second telescopic arm; 338: Second telescopic jack; 339: Second mounting plate; 34: Anchor breaking piece; 4: Rotating mechanism; 41: Gear; 42: Mounting shaft; 43: Rotating shaft; 44: Turntable; 45: Protective shell; 46: Driving part; 461: Teeth; a: Included angle. Detailed implementation manners

[0037] To better understand the above technical solutions, the exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and the scope of the present invention can be fully conveyed to those skilled in the art.

[0038] Embodiment 1

[0039] As Figure 1 shown, a kind of anchor breaking device for a hydraulic support with a telescopic rib protection mechanism in this embodiment, the hydraulic support includes a roof beam 1, and the telescopic rib protection mechanism 2 is installed at the front end of the roof beam 1. The anchor breaking device includes two anchor breaking mechanisms 3.

[0040] Specifically, two anchor-breaking mechanisms 3 are located on both sides of the telescopic rib protection mechanism 2. The two anchor-breaking mechanisms 3 have the same structure and both include a connecting frame 31, a rotating assembly 32, a rocker arm assembly 33, and an anchor-breaking member 34. The top of the connecting frame 31 is fixedly connected to the bottom of the roof beam 1. The fixed end of the rotating assembly 32 is hinged to the side wall of the connecting frame 31 by a pin shaft in the vertical direction. The bottom of the rotating end of the rotating assembly 32 is rotatably connected to the bottom top wall of the connecting frame 31 around the vertical axis of the rotating end. The installation end of the rocker arm assembly 33 is hinged to the outer wall of the rotating assembly 32 by a pin shaft in the horizontal direction. The anchor-breaking member 34 is installed on the top of the rocker arm assembly 33. The rocker arm assembly 33 can swing vertically back and forth around its hinge with the rotating assembly 32, that is, the rocker arm assembly 33 swings vertically back and forth around the axis of the pin shaft in the horizontal direction for hinging the installation end of the rocker arm assembly 33 to the outer wall of the rotating assembly 32, so as to drive the anchor-breaking member 34 to break the bolts and cable bolts in the coal mine. The rotating assembly 32 can drive the rocker arm assembly 33 to rotate around the vertical axis of the rotating end of the rotating assembly 32, so as to change the anchor-breaking position of the rocker arm assembly 33 and the anchor-breaking member 34. By providing two anchor-breaking mechanisms 3 with the same structure and each anchor-breaking mechanism 3 being able to operate independently, the anchor-breaking device can perform anchor-breaking operations simultaneously, improving the working efficiency of anchor-breaking and reducing the operation time. Moreover, by arranging the two anchor-breaking mechanisms 3 on both sides of the telescopic rib protection mechanism 2, it can prevent interference between the anchor-breaking mechanism 3 and the telescopic rib protection mechanism 2 and avoid collision between the two mechanisms. By providing the rotating assembly 32 and the rocker arm assembly 33 and the rotating assembly 32 being able to drive the rocker arm assembly 33 to rotate, the anchor-breaking member 34 can be in different positions, realizing the effective breaking of bolts and cable bolts at different positions by the anchor-breaking member 34, so as to adapt to different mine environments and mining requirements. Compared with the traditional manual anchor-breaking, it significantly improves the speed and efficiency of the anchor-breaking work. Moreover, the rocker arm assembly 33 can swing vertically back and forth, ensuring the continuity and high efficiency of the anchor-breaking process. At the same time, the anchor-breaking device also reduces the opportunity for workers to directly participate in high-risk anchor-breaking operations, reduces the risk of workers operating in complex underground environments, and improves the safety level of the entire coal mining face.

[0041] Further, as Figure 1 , Figure 2As shown, the rocker arm assembly 33 includes a rocker arm 331 and a swing jack 332. The rocker arm 331 includes a vertical section 3311 and a horizontal section 3312. The top of the vertical section 3311 is connected to the anchor-breaking member 34, the bottom of the vertical section 3311 is connected to one end of the horizontal section 3312, and the other end of the horizontal section 3312 is hinged to the outer wall of the rotating assembly 32 by a pin shaft in the horizontal direction. By setting the rocker arm 331 as the vertical section 3311 and the horizontal section 3312, and connecting the bottom of the vertical section 3311 to one end of the horizontal section 3312, it can make the rocker arm 331 form an L shape, so as to raise the position of the anchor-breaking member 34 installed at the top of the vertical section 3311, in order to break the supporting facilities such as bolts and cables at a high position. The swing jack 332 is located below the horizontal section 3312. The fixed end of the swing jack 332 is also hinged to the outer wall of the rotating assembly 32 by a pin shaft in the horizontal direction, and the telescopic end of the swing jack 332 is also hinged to the bottom of the horizontal section 3312 by a pin shaft in the horizontal direction. The telescopic end of the swing jack 332 can drive the horizontal section 3312 to rotate around the axis of the hinge joint between it and the outer wall of the rotating assembly 32, that is, the telescopic end of the swing jack 332 can drive the horizontal section 3312 to rotate around the axis of the pin shaft in the horizontal direction, so that the vertical section 3311 swings back and forth synchronously with the rotation of the horizontal section 3312, so as to drive the anchor-breaking member 34 to break the bolts and cables in the coal mine. By setting the swing jack 332, it can make the rocker arm 331 swing, so that the anchor-breaking member 34 can perform repeated operations on the supporting facilities such as bolts and cables, thus realizing anchor breaking. Preferably, the included angle a between the vertical section 3311 and the horizontal section 3312 ranges from 110° to 135°, and it is designed according to the requirements of different working conditions to improve the applicability of the hydraulic support.

[0042] Further, as Figure 1 and Figure 2As shown in the figure, the rocker arm 331 further includes a first telescopic arm 333 and a first telescopic jack 334. The fixed end of the first telescopic arm 333 is connected to one end of the transverse section 3312 away from the rotating assembly 32, and the telescopic end of the first telescopic arm 333 is connected to the bottom of the vertical section 3311. The first telescopic jack 334 is located above the first telescopic arm 333. A first mounting plate 335 is sleeved on the outer wall of the transverse section 3312. The fixed end of the first telescopic jack 334 is hinged to the first mounting plate 335 with a horizontal pin shaft, and the telescopic end of the first telescopic jack 334 is hinged to the bottom side wall of the vertical section 3311 with a horizontal pin shaft. The telescopic end of the first telescopic jack 334 can be telescoped to simultaneously drive the first telescopic arm 333 and the vertical section 3311 to horizontally telescope along the axis of the first telescopic jack 334, so as to change the horizontal length of the transverse section 3312, so that the anchor-breaking member 34 can reach farther support facilities such as bolts and cable bolts, improving the adaptability of the anchor-breaking device. Preferably, the extended length of the transverse section 3312 is 280 mm - 400 mm to adapt to roadways of different lengths.

[0043] Further, as Figure 2 shown in the figure, the rocker arm 331 further includes a connecting member 336, a second telescopic arm 337 and a second telescopic jack 338. One end of the connecting member 336 is connected to the telescopic end of the first telescopic arm 333, and the telescopic end of the first telescopic jack 334 is hinged to the connecting member 336 with a horizontal pin shaft. The other end of the connecting member 336 is connected to the fixed end of the second telescopic arm 337, and the telescopic end of the second telescopic arm 337 is connected to the bottom of the vertical section 3311. A second mounting plate 339 is sleeved on the fixed end of the second telescopic arm 337. The second telescopic jack 338 is vertically arranged. The fixed end of the second telescopic jack 338 is hinged to the second mounting plate 339 with a horizontal pin shaft, and the telescopic end of the second telescopic jack 338 is hinged to the vertical section 3311 with a horizontal pin shaft. The telescopic end of the second telescopic jack 338 can be telescoped to simultaneously drive the second telescopic arm 337 and the vertical section 3311 to vertically telescope along the axis of the second telescopic jack 338, so as to change the height of the vertical section 3311. By providing the second telescopic arm 337 and the second telescopic jack 338, the fixed end of the second telescopic arm 337 is connected to one end of the connecting member 336, and the telescopic end is connected to the bottom of the vertical section 3311. Through the telescoping of the second telescopic jack 338, it can drive the second telescopic arm 337 to telescope, so that the vertical section 3311 moves vertically in a direction away from or close to the connecting member 336, thereby changing the height of the vertical section 3311, and thus changing the height of the anchor-breaking member 34, so that the anchor-breaking member 34 can break different heights of support facilities such as bolts and cable bolts, improving the applicability of the anchor-breaking device. Preferably, the extended length of the vertical section 3311 is 280 mm - 400 mm to adapt to roadways of different heights.

[0044] Furthermore, if Figure 1 and Figure 2 As shown, the rotating assembly 32 includes a rotating jack 321, a fixed shaft 322 and a sleeve 323. The bottom of the fixed shaft 322 is fixedly mounted on the bottom top wall of the connecting frame 31, the sleeve 323 is sleeved on the outer wall of the fixed shaft 322, the end of the transverse section 3312 facing the sleeve 323 is hinged with the outer wall of the sleeve 323 by a pin in a horizontal direction, and the fixed end of the swing jack 332 is hinged with the outer wall of the sleeve 323 by a pin in a horizontal direction. The rotating jack 321 is arranged horizontally, the fixed end of the rotating jack 321 is hinged with the side wall of the connecting frame 31 by a pin in a vertical direction, and the telescopic end of the rotating jack 321 is also hinged with the outer wall of the sleeve 323 by a pin in a vertical direction. The telescopic end of the rotating jack 321 can be telescopic to drive the sleeve 323 to rotate around the axis of the fixed shaft 322, thereby driving the rocker assembly 33 to rotate around the axis of the fixed shaft 322. By setting the cooperative work of the rotating jack 321, the fixed shaft 322 and the sleeve 323, the rocker arm assembly 33 can realize the rotation around the axis of the fixed shaft 322, so that the anchor breaking member 34 can break the anchor rods, anchor cables and other supporting facilities at different positions, thereby improving the adaptability of the anchor breaking device. In addition, the rotating jack 321 ensures that the sleeve 323 and the rocker arm assembly 33 connected thereto can smoothly adjust the angle. Preferably, as Figure 3 As shown, the angle a between the rocker arm assembly 33 and the maximum rotation angle when it is in the initial position is in the range of 0°-21°, which ensures that the rocker arm assembly 33 can operate within a reasonable and effective angle range, ensures sufficient flexibility to adapt to different anchor breaking requirements, and avoids the problem of structural complexity caused by excessive angles.

[0045] Furthermore, if Figure 4 As shown, the anchor breaking device also includes a rotating mechanism 4. The rotating mechanism 4 is installed inside the vertical section 3311, and the top of the rotating mechanism 4 passes through the top of the vertical section 3311 and is connected to the anchor breaking member 34. The rotating mechanism 4 can drive the anchor breaking member 34 to rotate around the vertical axis of the rotating mechanism 4 to change the angle between the transverse center line of the anchor breaking member 34 and the transverse center line of the vertical section 3311. By integrating the rotating mechanism 4 inside the vertical section 3311, the anchor breaking member 34 can be rotated and adjusted around its axis, which gives the anchor breaking member 34 an additional degree of freedom, so that it can flexibly adjust the angle between the anchor breaking member 34 and the transverse center line of the vertical section 3311 without changing the overall position of the rocker arm assembly 33, thereby adapting to the requirements of breaking anchor rods and anchor cables in different directions and angles.

[0046] Specifically, Figure 5 and Figure 6As shown, the rotating mechanism 4 includes a gear 41, a mounting shaft 42, a rotating shaft 43, a rotating disk 44, a protective shell 45 and two driving members 46. An installation space 3311a is provided inside the vertical section 3311, and the gear 41, the mounting shaft 42, the rotating shaft 43 and the rotating disk 44 are vertically coaxially arranged. The gear 41 is rotatably mounted on the bottom wall in the installation space 3311a through the mounting shaft 42, and part of the gear 41 passes through the outer wall of the vertical section 3311 to be exposed to the outside, the bottom of the rotating shaft 43 is connected to the top of the gear 41, the top of the rotating shaft 43 passes through the top of the vertical section 3311 and is connected to the bottom of the rotating disk 44, and the top of the rotating disk 44 is connected to the broken anchor 34. The protective shell 45 is sleeved on the outer wall of the vertical section 3311, and the two driving members 46 are respectively located on both sides of the vertical section 3311. The fixed ends of the two driving members 46 are connected to the inner wall of the protective shell 45, and the driving ends of the two driving members 46 are respectively engaged with the part of the gear 41 exposed in the vertical section 3311, so as to ensure the fine adjustment of each angle change, thereby improving the accuracy of the anchor breaking operation. The two driving members 46 can respectively drive the gear 41 to rotate axially around its own axis, so that the gear 41 can simultaneously drive the rotating shaft 43 and the turntable 44 to rotate axially around the vertical axis of the gear 41, thereby driving the anchor breaking member 34 to rotate, so as to change the angle between the anchor breaking member 34 and the horizontal center line of the vertical section 3311, and realize angle adjustment. By setting two driving members 46, the gear 41 can rotate back and forth, so that the anchor breaking member 34 can rotate back and forth, thereby realizing that the anchor breaking member 34 provides effective breaking of anchor rods, anchor cables and other supporting facilities at different positions, thereby improving applicability. The rotation angle range of the anchor member 34 is ±30° to adapt to different working conditions.

[0047] Furthermore, if Figure 7 As shown, the driving member 46 is a telescopic cylinder, and the side of the piston rod of the telescopic cylinder facing the gear 41 is provided with teeth 461, and the teeth 461 of the piston rod are meshed with the gear 41, so that the telescopic cylinder can drive the gear 41 to rotate around its own axis. By providing teeth 461 on the side of the piston rod of the telescopic cylinder facing the gear 41, and the teeth 461 are directly meshed with the gear 41, the telescopic cylinder can convert the linear motion into rotational motion through the gear 41, thereby driving the rotating shaft 43 and the rotating disk 44 to rotate, so that the broken anchor 34 changes its angle, reducing energy loss and improving work efficiency.

[0048] Embodiment 2

[0049] The anchor breaking method of the anchor breaking device for a hydraulic support with a telescopic guard mechanism of the present embodiment includes the anchor breaking device of the first embodiment, and further includes the following steps:

[0050] S1: Temporary support of coal wall.

[0051] S11: driving the telescopic supporting mechanism 2 so that the telescopic supporting mechanism 2 temporarily supports the coal wall.

[0052] S2: Determine the anchor breaking position.

[0053] S21: driving the rotating jack 321 to extend and retract, so that the telescopic end of the rotating jack 321 drives the sleeve 323 to rotate around the axis of the fixed shaft 322 on the bottom top wall of the connecting frame 31, so as to drive the rocker arm assembly 33 to rotate around the axis of the fixed shaft 322.

[0054] S22: When the rocker arm assembly 33 is in the position required for breaking the anchor, the first telescopic jack 334 is driven to extend and retract, so as to drive the first telescopic arm 333 and the vertical section 3311 to extend and retract in the direction close to or away from the horizontal section 3312. After being extended and retracted to the anchor breaking position, the driving of the first telescopic jack 334 is stopped.

[0055] S23: Drive the second telescopic jack 338 to drive the second telescopic arm 337 to extend and retract, thereby driving the vertical section 3311 to rise and fall vertically, thereby driving the anchor breaking member 34 to be at different height positions. After being extended to the anchor breaking position, stop driving the second telescopic jack 338.

[0056] S24: driving the two driving members 46 respectively to rotate the gear 41, and the gear 41 drives the rotating shaft 43 and the rotating disk 44 to rotate synchronously, thereby driving the broken anchor member 34 to rotate, so that the broken anchor member 34 is aligned with the current anchor rod, anchor cable and other supporting facilities.

[0057] S3: Broken anchor.

[0058] S31: After determining the anchor breaking position through steps S21 to S24, drive the swing jack 332 to make the rocker arm assembly 33 swing back and forth vertically around the axis of the horizontal pin shaft at the hinge between it and the sleeve 323, so as to drive the anchor breaking member 34 to break the anchor rods and anchor cables in the coal mine as the rocker arm assembly 33 swings back and forth.

[0059] S32: After the anchor breaking component 34 has broken the current anchor rods, anchor cables and other supporting facilities, steps S21 to S31 are respectively executed again to break other anchor rods, anchor cables and other supporting facilities, which will not be described in detail here.

[0060] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0063] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0064] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An anchor breaking device for a hydraulic support with a telescopic guard mechanism, the hydraulic support comprising a top beam (1), the telescopic guard mechanism (2) being mounted at the front end of the top beam (1), characterized in that: The anchor-breaking device comprises two anchor-breaking mechanisms (3); The two anchor-breaking mechanisms (3) are located on both sides of the telescopic guard mechanism (2). The two anchor-breaking mechanisms (3) have the same structure, and both include a connecting frame (31), a rotating assembly (32), a rocker assembly (33) and an anchor-breaking member (34). The top of the connecting frame (31) is fixedly connected to the bottom of the top beam (1), the fixed end of the rotating assembly (32) is hinged to the side wall of the connecting frame (31), and the bottom of the rotating end of the rotating assembly (32) is rotatably connected to the bottom top wall of the connecting frame (31); The mounting end of the rocker arm assembly (33) is hinged to the outer wall of the rotating assembly (32), and the anchor breaking member (34) is mounted on the top of the rocker arm assembly (33). The rocker arm assembly (33) can vertically reciprocate around the hinge between the rocker arm assembly and the rotating assembly (32) to drive the anchor breaking member (34) to break the anchor rods and anchor cables in the coal mine; The rotating assembly (32) can drive the rocker arm assembly (33) to rotate around the axis of the rotating end of the rotating assembly (32) to change the anchor breaking position of the rocker arm assembly (33) and the anchor breaking member (34).

2. The anchor breaking device for a hydraulic support with a telescopic guard mechanism according to claim 1, characterized in that: The rocker arm assembly (33) comprises a rocker arm (331) and a rocking jack (332); The rocker arm (331) comprises a vertical section (3311) and a transverse section (3312), the top of the vertical section (3311) is connected to the anchor member (34), the bottom of the vertical section (3311) is connected to one end of the transverse section (3312), and the other end of the transverse section (3312) is hinged to the outer wall of the rotating assembly (32); The swing jack (332) is located below the transverse section (3312), the fixed end of the swing jack (332) is hinged to the outer wall of the rotating assembly (32), and the telescopic end of the swing jack (332) is hinged to the bottom of the transverse section (3312); The telescopic end of the swing jack (332) can drive the transverse section (3312) to rotate around the axis of the hinge between it and the outer wall of the rotating assembly (32), so that the vertical section (3311) can swing back and forth synchronously with the rotation of the transverse section (3312), so as to drive the anchor breaking component (34) to break the anchor rods and anchor cables in the coal mine.

3. The anchor breaking device for a hydraulic support with a telescopic guard mechanism according to claim 2, characterized in that: The rocker arm (331) further comprises a first telescopic arm (333) and a first telescopic jack (334); The fixed end of the first telescopic arm (333) is connected to an end of the transverse section (3312) away from the rotating assembly (32), and the telescopic end of the first telescopic arm (333) is connected to the bottom of the vertical section (3311); The first telescopic jack (334) is located above the first telescopic arm (333), a first mounting plate (335) is sleeved on the outer wall of the transverse section (3312), a fixed end of the first telescopic jack (334) is hinged to the first mounting plate (335), and a telescopic end of the first telescopic jack (334) is hinged to the bottom side wall of the vertical section (3311); The telescopic end of the first telescopic jack (334) is capable of telescoping to simultaneously drive the first telescopic arm (333) and the vertical section (3311) to telescope laterally along the axis of the first telescopic jack (334) to change the transverse length of the transverse section (3312).

4. The anchor breaking device for a hydraulic support with a telescopic guard mechanism according to claim 3, characterized in that: The rocker arm (331) further includes a connecting piece (336), a second telescopic arm (337) and a second telescopic jack (338); One end of the connecting member (336) is connected to the telescopic end of the first telescopic arm (333), and the telescopic end of the first telescopic jack (334) is hinged to the connecting member (336), and the other end of the connecting member (336) is connected to the fixed end of the second telescopic arm (337), and the telescopic end of the second telescopic arm (337) is connected to the bottom of the vertical section (3311); The fixed end of the second telescopic arm (337) is sleeved with a second mounting plate (339), the second telescopic jack (338) is vertically arranged, the fixed end of the second telescopic jack (338) is hinged to the second mounting plate (339), and the telescopic end of the second telescopic jack (338) is hinged to the vertical section (3311); The telescopic end of the second telescopic jack (338) is capable of telescoping to simultaneously drive the second telescopic arm (337) and the vertical section (3311) to telescope vertically along the axis of the second telescopic jack (338) to change the height of the vertical section (3311).

5. The anchor breaking device for a hydraulic support with a telescopic guard mechanism according to claim 2, characterized in that: The rotating assembly (32) comprises a rotating jack (321), a fixed shaft (322) and a sleeve (323); The bottom of the fixed shaft (322) is fixedly mounted on the bottom top wall of the connecting frame (31), the sleeve (323) is sleeved on the outer wall of the fixed shaft (322), one end of the transverse section (3312) facing the sleeve (323) is hinged to the outer wall of the sleeve (323), and the fixed end of the swing jack (332) is hinged to the outer wall of the sleeve (323); The rotating jack (321) is arranged horizontally, the fixed end of the rotating jack (321) is hinged to the side wall of the connecting frame (31), and the telescopic end of the rotating jack (321) is hinged to the outer wall of the sleeve (323); The telescopic end of the rotating jack (321) is capable of telescoping to drive the sleeve (323) to rotate around the axis of the fixed shaft (322), thereby driving the rocker arm assembly (33) to rotate around the axis of the fixed shaft (322).

6. The anchor breaking device for a hydraulic support with a telescopic guard mechanism according to claim 5, characterized in that: When the rocker arm assembly (33) is in the initial position, the included angle (a) between the rocker arm assembly (33) and the maximum rotation angle ranges from 0° to 21°.

7. The anchor breaking device for a hydraulic support with a telescopic guard mechanism according to claim 2, characterized in that: The anchor breaking device further comprises a rotating mechanism (4); The rotating mechanism (4) is installed inside the vertical section (3311), and the top of the rotating mechanism (4) passes through the top of the vertical section (3311) and is connected to the breaking anchor (34). The rotating mechanism (4) can drive the breaking anchor (34) to rotate around the axis of the rotating mechanism (4) to change the angle between the breaking anchor (34) and the horizontal center line of the vertical section (3311).

8. The anchor breaking device for a hydraulic support with a telescopic guard mechanism according to claim 7, characterized in that: The rotating mechanism (4) comprises a gear (41), a mounting shaft (42), a rotating shaft (43), a rotating disk (44), a protective shell (45) and two driving members (46); An installation space (3311a) is provided inside the vertical section (3311); the gear (41) is rotatably installed on the bottom wall in the installation space (3311a) through the installation shaft (42); part of the gear (41) passes through the outer wall of the vertical section (3311) and is exposed to the outside; the bottom of the rotating shaft (43) is connected to the top of the gear (41); the top of the rotating shaft (43) passes through the top of the vertical section (3311) and is connected to the bottom of the rotating disk (44); and the top of the rotating disk (44) is connected to the broken anchor (34); The protective shell (45) is sleeved on the outer wall of the vertical section (3311), the two driving members (46) are respectively located on both sides of the vertical section (3311), the fixed ends of the two driving members (46) are connected to the inner wall of the protective shell (45), and the driving ends of the two driving members (46) are respectively meshed with the parts of the gear (41) exposed from the vertical section (3311); The two driving members (46) can respectively drive the gear (41) to rotate, so that the gear (41) can simultaneously drive the rotating shaft (43) and the rotating disk (44) to rotate, thereby driving the broken anchor member (34) to rotate, so as to change the angle between the broken anchor member (34) and the horizontal center line of the vertical section (3311).

9. The anchor breaking device for a hydraulic support with a telescopic guard mechanism according to claim 8, characterized in that: The driving member (46) is a telescopic cylinder. A side of a piston rod of the telescopic cylinder facing the gear (41) is provided with teeth (461). The teeth (461) of the piston rod mesh with the gear (41), so that the extension and retraction of the telescopic cylinder drives the gear (41) to rotate.

10. An anchor breaking method for an anchor breaking device for a hydraulic support with a telescopic guard mechanism, comprising the anchor breaking device according to any one of claims 1 to 9, characterized in that: The following steps are also included: S1: Temporary support coal wall; S11: driving the telescopic supporting mechanism (2) so that the telescopic supporting mechanism (2) temporarily supports the coal wall; S2: determine the anchor breaking position; S21: driving the rotating assembly (32) to rotate on the bottom top wall of the connecting frame (31) to drive the rocker arm assembly (33) to rotate around the axis of the rotating assembly (32) to determine the anchor breaking position of the anchor breaking member (34); S3: Broken anchor; S31: After determining the anchor breaking position through step S21, the rocker arm assembly (33) is driven to swing back and forth vertically around the hinge between the rocker arm assembly (33) and the rotating assembly (32), so as to drive the anchor breaking member (34) to break the anchor rods and anchor cables in the coal mine as the rocker arm assembly (33) swings back and forth.

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