A monorail crane hydraulic support anchor cable drilling rig for coal mines

Abstract

The present invention discloses a monorail hydraulic support anchor cable drilling rig for coal mines, which relates to the technical field of anchor cable drilling rigs and comprises a fixed frame, a support plate and a sliding beam, wherein the support plate is rotatably connected to the fixed frame, the sliding beam is welded to the surface of the support plate, a moving seat is slidably connected to the middle of the top end of the sliding beam, a support seat is welded to one end of the top end of the sliding beam, and an intermediate anchor rod is arranged between the support seat and the moving seat; the present invention can support the intermediate anchor rod through an intermediate sleeve to avoid bending of the intermediate anchor rod when drilling a hole, the inner ring of the bearing and the outer ring of the bearing cooperate without affecting the rotation of the intermediate anchor rod, the intermediate sleeve can be pulled to a specified position, and the support of the intermediate sleeve is ensured to be relatively stable and reliable, the clamping block can not only adapt to intermediate anchor rods of different diameters, but also clamp the intermediate anchor rod as it rotates, and ensure that the support of the intermediate anchor rod is more reliable.

Description

Technical Field

[0001] The invention relates to the technical field of anchor cable drilling machines, in particular to a monorail crane hydraulic support anchor cable drilling machine for coal mines. Background Art

[0002] Anchor cable drilling rig is a kind of mechanical equipment that uses hydraulic system as control system, and uses drill rod, drill tool and other tools to drill underground caves and reinforce anchor cables. The principle of anchor cable drilling rig is to use the rotation and impact of the drill bit to make the drill tool drill into the ground, and then install anchor cables to fix the rock. In coal mining, anchor cable drilling rig is often used to reinforce coal seam roof, coal pillars and other parts to improve the safety and efficiency of coal mining;

[0003] In the prior art, since the anchor rod is generally located between the support seat and the movable seat for rotation, and is inserted into the mine through the end of the anchor rod, and the spacing between the support seat and the movable seat is relatively large, the middle of the anchor rod lacks a structure that supports the middle of the drill rod. When the drill tool at the end of the drill rod drills rocks and the like, the drill tool is subjected to the force and the middle anchor rod is prone to bend, thereby bending the drilled hole or damaging the anchor rod, and when the middle of the middle anchor rod contacts the supporting device, it will affect the normal rotation of the middle anchor rod. Summary of the invention

[0004] The purpose of the present invention is to provide a monorail hydraulic support anchor cable drilling rig for coal mines to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A coal mine monorail hydraulic support anchor cable drilling rig, comprising a fixed frame, a support plate and a sliding beam, wherein the support plate is rotatably connected to the fixed frame, the sliding beam is welded to the surface of the support plate, a moving seat is slidably connected to the middle of the top of the sliding beam, a support seat is welded to the top end of the sliding beam, an intermediate anchor rod is arranged between the support seat and the moving seat, the intermediate anchor rod is movably connected to the moving seat, a support structure is installed on the side wall of the support seat and near the moving seat, the support structure comprises two fixing holes, and the two fixing holes are provided with On the side wall of the support seat, the inside of the two fixing holes are slidably connected with connecting rods, an intermediate sleeve is fixedly installed between the ends of the two connecting rods, the end face of the intermediate sleeve is provided with an end cover, the end face of the intermediate sleeve and a reserved groove are opened at the end cover, a bearing is installed inside the reserved groove, and the bearing includes a bearing inner ring and a bearing outer ring, the bearing inner ring and the bearing outer ring rotate relatively, the bearing outer ring is fixed to the inside of the reserved groove, the intermediate anchor rod runs through the inside of the bearing inner ring, and the axis of the rotating sleeve, the axis of the bearing inner ring and the axis of the moving seat coincide.

[0007] As a preferred technical solution of the present invention, one end of the connecting rod is screwed into the middle sleeve, and the other end of the connecting rod is provided with a receiving groove 1 near the support seat. The interior of the receiving groove 1 is rotatably connected with a clamping block, the interior of the clamping block is hollow, and a telescopic spring is arranged inside the clamping block, and the clamping block is clamped with the end face of the support seat.

[0008] As a preferred technical solution of the present invention, the two ends of the telescopic spring are respectively connected to a clamping block and a receiving slot one, fixing pins are integrally provided on both sides of the clamping block, pin holes are provided on both inner walls of the receiving slot one, and the fixing pins are movably connected to the pin holes of the receiving slot one.

[0009] As a preferred technical solution of the present invention, the internal rotating connection clamping structure of the intermediate sleeve comprises a rotating plate and a fixed plate which fit each other, the rotating plate is connected to the fixed plate by a fastening bolt 2, the rotating plate and the fixed plate rotate relative to each other, the fixed plate is welded to the side wall of the inner ring of the bearing, the fixed plate rotates relative to the outer ring of the bearing, three sliding grooves are provided on the surface of the fixed plate, the insides of the three sliding grooves are all slidably connected with clamping blocks, the three clamping blocks are arranged in a ring array, fastening bolt 1 is screwed on the surface of the three clamping blocks, three rotating grooves 2 are provided on the surface of the rotating plate, the shape of the rotating groove 2 is radial, and the fastening bolt 1 is located inside the rotating groove 2.

[0010] As a preferred technical solution of the present invention, the three rotating grooves 2 are arranged in a circular array, the fastening bolt 1 is slidably connected to the inside of the rotating groove 2, the three sliding grooves pass through the center of the fixed plate, and the clamping block moves along the diameter direction of the fixed plate.

[0011] As a preferred technical solution of the present invention, the surface of the rotating plate is provided with three rotating grooves 1 arranged in a circular array, the shape of the rotating groove 1 is an arc, the end of the fastening bolt 2 is fixed to the fixed plate, the fastening bolt 2 is slidably connected to the inside of the rotating groove 1, and the center of the rotating groove 1 is matched with the center of the rotating plate.

[0012] As a preferred technical solution of the present invention, the ends of the three clamping blocks are provided with contact components, and the contact components include receiving grooves 2, which are opened at the end of each clamping block, and each clamping block has two receiving grooves 2, and connecting pins are inserted into the insides of the two receiving grooves 2. A fixed block is rotatably connected on the connecting pin and located inside the receiving groove 2, and a contact component is provided at the end of the fixed block, which contacts the middle anchor rod.

[0013] As a preferred technical solution of the present invention, the contact component of the contact assembly is a cleaning brush, which is fixed to the end of one of the fixed blocks, and the end of the cleaning brush is in contact with the cylindrical surface of the middle anchor rod.

[0014] As a preferred technical solution of the present invention, the contact component of the contact assembly is a moving wheel, which is rotatably connected to the end of one of the fixed blocks, and the bottom end of the moving wheel contacts the cylindrical surface of the middle anchor rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A supporting structure is provided, and the middle anchor rod passes through the middle sleeve. The middle anchor rod can be supported by the middle sleeve to prevent the middle anchor rod from bending when drilling. The inner ring of the bearing and the outer ring of the bearing match each other, which does not affect the rotation of the middle anchor rod;

[0017] 2. The middle sleeve can be pulled to the specified position through the contact between the clamping block of the support structure and the support seat. The clamping block is against the surface of the support seat, and the middle anchor rod is always supported by the middle sleeve, ensuring that the middle sleeve support is relatively stable and reliable;

[0018] 3. A clamping structure is provided. The rotating plate and the fixed plate rotate relative to each other, so that the gap between the three clamping blocks can be adjusted. The clamping blocks can not only adapt to the middle anchor rods of different diameters, but also clamp them while the middle anchor rod rotates, ensuring that the support for the middle anchor rod is more reliable;

[0019] 4. A contact assembly is provided. When adjusting the position of the clamping block, the fixed block can contact the middle anchor rod, the cleaning brush can contact the middle anchor rod to clean the middle anchor rod, and the moving wheel can contact the middle anchor rod to ensure smooth rotation of the middle anchor rod;

[0020] 5. The clamping structure is in contact with the contact assembly, and the position of the fixed block can be adjusted according to the diameter of the middle anchor rod to ensure that the cleaning brush and the moving wheel are always in contact with the middle anchor rod, and the scope of use is relatively wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a main structure diagram of a monorail hydraulic support anchor cable drilling rig for coal mines according to the present invention;

[0023] Figure 2 It is a schematic diagram of a support seat and a moving seat of a monorail crane hydraulic support anchor bolt cable drilling rig for coal mines according to the present invention;

[0024] Figure 3 It is a schematic diagram of the splitting of the clamping structure and the supporting structure of a monorail crane hydraulic support anchor cable drilling rig for coal mines according to the present invention;

[0025] Figure 4It is a schematic diagram of the supporting structure of a monorail crane hydraulic support anchor bolt cable drilling rig for coal mines according to the present invention;

[0026] Figure 5 It is a schematic diagram of a bearing inner ring and a bearing outer ring of a monorail crane hydraulic support anchor cable drilling rig for coal mines according to the present invention;

[0027] Figure 6 It is a schematic diagram of a clamping block and a telescopic spring of a monorail crane hydraulic support anchor cable drilling rig for coal mines according to the present invention;

[0028] Figure 7 It is a schematic diagram of the clamping structure of a monorail crane hydraulic support anchor bolt cable drilling rig for coal mines according to the present invention;

[0029] Figure 8 It is a schematic diagram of a rotating plate and a fixed plate of a monorail hydraulic support anchor cable drilling rig for coal mines according to the present invention;

[0030] Fig. 9 It is a schematic diagram of a contact assembly of a monorail crane hydraulic support anchor bolt cable drilling rig for coal mines according to the present invention;

[0031] Fig.10 The present invention is a schematic diagram of a rotating groove 1 and a rotating groove 2 of a monorail hydraulic support anchor cable drilling rig for coal mines.

[0032] In the figure: 1. fixed frame; 2. support plate; 3. sliding beam; 4. rotating sleeve; 5. support seat; 6. support structure; 7. clamping structure; 8. intermediate anchor rod; 9. contact assembly; 10. movable seat; 61. intermediate sleeve; 62. connecting rod; 63. fixing hole; 64. inner ring of bearing; 65. end cover; 66. reserved groove; 67. outer ring of bearing; 68. storage groove one; 69. clamping block; 610. telescopic spring; 71. rotating plate; 72. fastening bolt one; 73. fastening bolt two; 74. rotating groove one; 75. rotating groove two; 76. fixed plate; 77. sliding groove; 78. clamping block; 91. storage groove two; 92. cleaning brush; 93. moving wheel; 94. connecting pin; 95. fixed block. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0034] See also Figure 1 - Figure 5As shown, a monorail hydraulic support anchor cable drilling rig for coal mines comprises a fixed frame 1, a support plate 2 and a sliding crossbeam 3. The support plate 2 is rotatably connected to the fixed frame 1. The fixed frame 1 is installed on an engineering vehicle so that the anchor cable drilling rig can be moved to a designated location. The support plate 2 can be lifted by a hydraulic cylinder, and the support plate 2 rotates around the edge of the fixed frame 1. The sliding crossbeam 3 is welded to the surface of the support plate 2, and the sliding crossbeam 3 rotates with the support plate 2. A moving seat 10 is slidably connected to the middle of the top of the sliding crossbeam 3. An anchor cable is arranged on the sliding crossbeam 3, and the moving seat 10 can be moved along the fixed frame 1 by contracting the anchor cable. The sliding crossbeam 3 moves, and a support seat 5 is welded at one end of the top of the sliding crossbeam 3. An intermediate anchor rod 8 is arranged between the support seat 5 and the moving seat 10. The intermediate anchor rod 8 is movably connected with the moving seat 10. One end of the intermediate anchor rod 8 can be placed inside the support seat 5, and the other end of the intermediate anchor rod 8 can be placed inside the moving seat 10, so that the motor drives the intermediate anchor rod 8 at the moving seat 10 to rotate, and the intermediate anchor rod 8 is also located inside the support seat 5 to rotate, so that the intermediate anchor rod 8 can be extended and retracted with the movement of the moving seat 10, so that the intermediate anchor rod 8 can be drilled to different depths as needed, and the side wall of the support seat 5 A support structure 6 is installed near the movable seat 10, and the support structure 6 includes two fixing holes 63, and the two fixing holes 63 are opened on the side wall of the support seat 5. The insides of the two fixing holes 63 are slidably connected with connecting rods 62, and the two connecting rods 62 move along the insides of the fixing holes 63. The connecting rods 62 extend and retract along the intermediate sleeve 61, and an intermediate sleeve 61 is fixedly installed between the ends of the two connecting rods 62. An end cover 65 is provided on the end surface of the intermediate sleeve 61, and a reserved groove 66 is opened on the end surface of the intermediate sleeve 61 and located at the end cover 65. A bearing is installed inside the reserved groove 66, and the bearing is installed in the reserved groove 6 6, and the bearing is fixed in the reserved groove 66 by the end cover 65, and the bearing includes a bearing inner ring 64 and a bearing outer ring 67, the bearing inner ring 64 and the bearing outer ring 67 rotate relative to each other, the bearing outer ring 67 is fixed to the inside of the reserved groove 66, the middle anchor rod 8 runs through the inside of the bearing inner ring 64, the middle anchor rod 8 supported between the support seat 5 and the moving seat 10 will be slightly bent, when the middle anchor rod 8 rotates, the middle anchor rod 8 contacts with the bearing inner ring 64 and drives it to rotate, so that the middle anchor rod 8 can be supported, and the axis of the rotating sleeve 4, the axis of the bearing inner ring 64 and the axis of the moving seat 10 coincide with each other;

[0035] It should be noted that when a coal mine needs to drill a hole, an anchor bolt and cable drilling rig is often used to drill the hole. At this time, the drilling rig is moved to a suitable position by an engineering vehicle, and the support plate 2 is rotated around the edge of the fixed frame 1 by a telescopic hydraulic cylinder, so that the support plate 2 is rotated to a suitable angle and then the intermediate anchor rod 8 is installed. One end of the intermediate anchor rod 8 is placed inside the moving seat 10, and the intermediate anchor rod 8 inside the moving seat 10 is driven by a motor to rotate. The intermediate anchor rod 8 is located inside the support seat 5 and rotates, and the moving seat 10 can be moved along the sliding beam 3 by changing the position of the anchor cable. When the intermediate anchor rod 8 is drilling, it is easy for the intermediate anchor rod 8 to bend. At this time, it can be supported by the intermediate sleeve 61. The rotating intermediate anchor rod 8 will bend. At this time, the bent intermediate anchor rod 8 will contact the inside of the bearing inner ring 64 to avoid the intermediate anchor rod 8 from being bent significantly when drilling. The relative rotation of the bearing inner ring 64 and the bearing outer ring 67 will not affect the rotation of the intermediate anchor rod 8.

[0036] See also Figure 5 and Figure 6 As shown, one end of the connecting rod 62 is screwed with the middle sleeve 61, and the middle sleeve 61 is fixed by the connecting rod 62. The other end of the connecting rod 62 is provided with a receiving groove 68 near the support seat 5. The interior of the receiving groove 68 is rotatably connected with a clamping block 69. The clamping block 69 can be rotated around its end, and the clamping block 69 can also be received in the interior of the receiving groove 68. The interior of the clamping block 69 is hollow, and a telescopic spring 610 is provided inside the clamping block 69. The clamping block 69 is engaged with the end face of the support seat 5. The clamping block 69 located inside the fixing hole 63 will not extend, and the clamping block 69 located outside the fixing hole 63 will extend from the inside of the receiving groove 68.

[0037] See also Figure 6 As shown, the two ends of the telescopic spring 610 are respectively connected to a clamping block 69 and a receiving slot 1 68, and fixing pins are integrally arranged on both sides of the clamping block 69. Pin holes are provided on both inner walls of the receiving slot 1 68, and the fixing pins are movably connected to the pin holes of the receiving slot 1 68. The clamping block 69 can be raised and lowered under the action of the telescopic spring 610. When the clamping block 69 is raised, the end face of the clamping block 69 can be pressed against the end face of the support seat 5 to determine the position of the intermediate sleeve 61.

[0038] It should be noted that since the intermediate anchor rod 8 rotates inside the intermediate sleeve 61 and moves along the axial direction at the same time, the position of the intermediate sleeve 61 can be clamped by the clamping block 69 in order to move the intermediate anchor rod 8. Specifically, the intermediate sleeve 61 is moved outward, and the clamping block 69 inside the connecting rod 62 is pulled out from the inside of the fixing hole 63. Under the action of the telescopic spring 610, the clamping block 69 pops out from the inside of the storage groove 68. When the moving seat 10 moves toward the support seat 5, the clamping block 69 will be pressed against the support seat 5. When the clamping block 69 needs to be put into the fixing hole 63, the staff can press the clamping block 69 so that the clamping block 69 is put into the fixing hole 63. When necessary, the intermediate sleeve 61 can be pulled out again to support the intermediate anchor rod 8.

[0039] See also Figure 3 , Figure 7 and Figure 8 As shown, the internal rotation connection clamping structure 7 of the intermediate sleeve 61 includes a rotating plate 71 and a fixed plate 76 that fit each other. The rotating plate 71 is connected to the fixed plate 76 by a second fastening bolt 73. The second fastening bolt 73 is screwed into the surface of the fixed plate 76, so that the rotating plate 71 can fit on the surface of the fixed plate 76. The rotating plate 71 can rotate around each second fastening bolt 73. The rotating plate 71 and the fixed plate 76 rotate relatively. The fixed plate 76 is welded to the side wall of the bearing inner ring 64. The fixed plate 76 rotates relatively with the bearing outer ring 67. When the bearing inner ring 64 rotates The fixed plate 76 is driven to rotate. Three sliding grooves 77 are provided on the surface of the fixed plate 76. The three sliding grooves 77 are slidably connected with clamping blocks 78. The three clamping blocks 78 are arranged in a ring array, and the three clamping blocks 78 can be moved to the middle or to the outside. The surfaces of the three clamping blocks 78 are screwed with fastening bolts 1 72. The surface of the rotating plate 71 is provided with three rotating grooves 2 75. The shape of the rotating grooves 2 75 is radial. The fastening bolts 1 72 are located inside the rotating grooves 2 75. The rotation of the rotating plate 71 can drive the fastening bolts 1 72 to slide along the rotating grooves 2 75.

[0040] It should be noted that the rotating plate 71 is rotated so that the rotating plate 71 and the fixed plate 76 rotate relative to each other. At this time, the three fastening bolts 2 73 and the rotating groove 1 74 can rotate relative to each other, so that the rotating groove 1 74 rotates along the three fastening bolts 2 73, and the fastening bolts 1 72 move along the three rotating grooves 2 75. At the same time, the clamping block 78 moves along the inside of the sliding groove 77, so that the position of the clamping block 78 can be adjusted with the cooperation of the rotating groove 2 75 and the sliding groove 77 until the three clamping blocks 69 clamp the middle anchor rod 8, and the clamping block 69 rotates synchronously with the bearing inner ring 64, and the rotation of the clamping block 69 will not affect the rotation of the middle anchor rod 8.

[0041] See also Figure 8As shown, the three rotating grooves 75 are arranged in an annular array, the fastening bolts 72 are slidably connected to the inside of the rotating grooves 75, and the three sliding grooves 77 pass through the center of the fixed plate 76. The clamping block 78 moves along the diameter direction of the fixed plate 76, and the rotating plate 71 can be rotated, so that the position of the clamping block 78 changes; the surface of the rotating plate 71 is provided with three rotating grooves 74 arranged in an annular array, and the shape of the rotating groove 74 is an arc shape. The end of the fastening bolt 73 is fixed to the fixed plate 76, and the fastening bolt 73 is slidably connected to the inside of the rotating groove 74, and the center of the rotating groove 74 is consistent with the center of the rotating plate 71. The three intermediate anchor rods 8 are fixed to the inner ring 64 of the bearing and the inside of the sliding groove 77 by the telescopic clamping block 78.

[0042] See also Figure 3 , Fig. 9 and Fig.10 As shown, contact components 9 are provided at the ends of the three clamping blocks 78, and the contact components 9 include receiving grooves 91. The receiving grooves 91 are opened at the ends of each clamping block 78, and each clamping block 78 has two receiving grooves 91. Connecting pins 94 are inserted into the inside of the two receiving grooves 91. The connecting pins 94 are inserted into the inside of the clamping block 78. A fixing block 95 is rotatably connected on the connecting pin 94 and located inside the receiving grooves 91. A contact component is provided at the end of the fixing block 95, and the contact component contacts the middle anchor rod 8. When the required contact component is extended, one of the fixing blocks 95 is rotated around the connecting pin 94. At this time, the fixing block 95 can be rotated to make the moving wheel 93 contact the middle anchor rod 8, and the middle anchor rod 8 can be contacted through the contact component.

[0043] See also Fig. 9 As shown, the contact component of the contact assembly 9 is a cleaning brush 92, which is fixed to the end of one of the fixed blocks 95. The end of the cleaning brush 92 contacts the cylindrical surface of the middle anchor rod 8. When the fixed block 95 rotates around the connecting pin 94, the cleaning brush 92 contacts the middle anchor rod 8, and the middle anchor rod 8 can be cleaned while the middle anchor rod 8 rotates.

[0044] See also Fig.10 As shown, the contact component of the contact assembly 9 is a moving wheel 93, which is rotatably connected to the end of one of the fixed blocks 95. The bottom end of the moving wheel 93 contacts the cylindrical surface of the intermediate anchor rod 8. When the fixed block 95 rotates around the connecting pin 94, the moving wheel 93 contacts the intermediate anchor rod 8, and the intermediate anchor rod 8 rotates more smoothly inside the bearing inner ring 64.

[0045] When the present invention is in use, the fixed frame 1 can be installed on an engineering machine, and the drilling rig is moved to a specified position by the engineering machine. The hydraulic cylinder at the bottom end of the fixed frame 1 is extended and retracted to rotate the support plate 2, and the sliding beam 3 on the support plate 2 is at a suitable angle. When drilling a hole in a coal mine, the intermediate anchor rod 8 is installed between the support seat 5 and the moving seat 10, and one end of the intermediate anchor rod 8 is installed inside the moving seat 10. The intermediate anchor rod 8 inside the moving seat 10 is driven to rotate by a motor, and the anchor cable can be pulled to make the moving seat 10 move along the sliding beam 3, so that the intermediate anchor rod 8 is located in the supporting structure 6. At this time, the intermediate anchor rod 8 is located inside the bearing inner ring 64, and the bearing inner ring 64 and the bearing outer ring 67 rotate relative to each other. At this time, the bearing inner ring 64 and the bearing outer ring 67 will not affect the rotation of the intermediate anchor rod 8, and the intermediate sleeve 61 can support the middle anchor rod 8 and restrict the middle anchor rod 8 inside the middle sleeve 61, so as to prevent the support seat 5 from bending when the middle anchor rod 8 is drilling, and prevent the middle sleeve 61 from moving when the middle anchor rod 8 is rotating. When the connecting rod 62 is pulled out from the fixing hole 63, the clamping block 69 in the connecting rod 62 will protrude under the action of the telescopic spring 610, and the clamping block 69 can be blocked at the support seat 5 after protruding. When the middle anchor rod 8 rotates, the clamping block 69 will be pushed to clamp with the support seat 5, and the middle sleeve 61 will not move when the middle anchor rod 8 rotates. It is necessary to store the middle sleeve 61 at the support seat 5, and after pressing the clamping block 69, the middle sleeve 61 can be fitted with the side wall of the support seat 5, and the middle anchor rod 8 is always supported by the middle sleeve 61, so as to ensure that the support of the middle sleeve 61 is relatively stable and reliable.

[0046] In order to avoid the middle anchor rod 8 from bending too much when the middle anchor rod 8 rotates, the middle anchor rod 8 can be clamped by the clamping structure 7. The middle anchor rod 8 needs to be clamped according to its diameter. Specifically, the rotating plate 71 rotates relative to the fixed plate 76, and the fastening bolts 1 72 and 2 73 of the fixed plate 76 slide along the rotating groove 1 74 and the rotating groove 2 75 of the rotating plate 71. The fastening bolts 2 73 ensure that the axes of the rotating plate 71 and the fixed plate 76 coincide with each other. The fastening bolts 1 72 slide inside the rotating groove 2 75, and the clamping block 78 slides along the sliding groove 77 Slide, so that the three clamping blocks 78 move toward the middle at the same time, and the three clamping blocks 78 clamp the middle anchor rod 8, which can be clamped according to the middle anchor rods 8 of different diameters. At the same time, after the middle anchor rod 8 is clamped by the three clamping blocks 78, it can also rotate with the support plate 2. The bearing inner ring 64 and the fixing plate 76 rotate synchronously, which will not affect the normal rotation of the middle anchor rod 8 in the middle sleeve 61. The clamping block 78 can not only adapt to the middle anchor rods 8 of different diameters, but also clamp it while the middle anchor rod 8 rotates, ensuring that the support of the middle anchor rod 8 is more reliable.

[0047] When the middle anchor rod 8 is drilling a hole, the middle anchor rod 8 is in contact with the contact component 9. At this time, when the support seat 5 rotates, the contact part of the contact component 9 can be exposed from the inside of the second storage groove 91. Specifically, when the middle anchor rod 8 moves toward the movable seat 10, the middle anchor rod 8 can rotate with the movable wheel 93 when it rotates. When the middle anchor rod 8 rotates, it contacts with the movable wheel 93, which makes the rotation of the middle anchor rod 8 smoother. After the drilling is completed and the anchor rod is pushed out, the middle anchor rod 8 can contact the cleaning brush 92 when it is away from the support seat 5, so that the cleaning brush 92 can clean the dust and other foreign matter on the middle anchor rod 8. Because the direction of the connecting pin 94 matches the rotation direction of the middle anchor rod 8, the cleaning brush 92 and the movable wheel 93 will not deflect when the support seat 5 rotates. Only the fixing block 95 is manually received in the inside of the second storage groove 91, which does not affect the later use of the contact component 9. The position of the fixing block 95 can be adjusted according to the diameter of the middle anchor rod 8 to ensure that the cleaning brush 92 and the movable wheel 93 are always in contact with the middle anchor rod 8, and the scope of use is relatively wide.

[0048] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A monorail hydraulic support anchor cable drilling rig for coal mines, comprising a fixed frame (1), a support plate (2) and a sliding beam (3), wherein the support plate (2) is rotatably connected to the fixed frame (1), the sliding beam (3) is welded to the surface of the support plate (2), a moving seat (10) is slidably connected to the middle of the top of the sliding beam (3), a support seat (5) is welded to one end of the top of the sliding beam (3), an intermediate anchor rod (8) is arranged between the support seat (5) and the moving seat (10), and the intermediate anchor rod (8) is movably connected to the moving seat (10); characterized in that: A support structure (6) is installed on the side wall of the support seat (5) and is located near the movable seat (10). The support structure (6) comprises two fixing holes (63). The two fixing holes (63) are opened on the side wall of the support seat (5). Connecting rods (62) are slidably connected inside the two fixing holes (63). An intermediate sleeve (61) is fixedly installed between the ends of the two connecting rods (62). An end cover (65) is provided on the end surface of the intermediate sleeve (61). A reserved groove (66) is provided on the surface of the bearing and is located at the end cover (65). A bearing is installed inside the reserved groove (66). The bearing includes a bearing inner ring (64) and a bearing outer ring (67). The bearing inner ring (64) and the bearing outer ring (67) rotate relative to each other. The bearing outer ring (67) is fixed to the inside of the reserved groove (66). The intermediate anchor rod (8) passes through the inside of the bearing inner ring (64). The axis of the rotating sleeve (4), the axis of the bearing inner ring (64) and the axis of the moving seat (10) coincide with each other. The intermediate sleeve (61) is internally rotatably connected to a clamping structure (7), wherein the clamping structure (7) comprises a rotating plate (71) and a fixed plate (76) which fit each other, the rotating plate (71) being connected to the fixed plate (76) by a second fastening bolt (73), the rotating plate (71) and the fixed plate (76) being relatively rotatable, the fixed plate (76) being welded to the side wall of the bearing inner ring (64), the fixed plate (76) being relatively rotatable to the bearing outer ring (67), the surface of the fixed plate (76) being provided with three sliding grooves (77), the insides of the three sliding grooves (77) being slidably connected with clamping blocks (78), the three clamping blocks (78) being arranged in a ring array, the surfaces of the three clamping blocks (78) being screwed with a first fastening bolt (72), the surface of the rotating plate (71) being provided with three second rotating grooves (75), the shape of the second rotating grooves (75) being radial, and the first fastening bolt (72) being located inside the second rotating grooves (75).

2. The coal mine monorail hydraulic support anchor cable drilling rig according to claim 1, characterized in that: One end of the connecting rod (62) is screwed with the middle sleeve (61), and the other end of the connecting rod (62) is provided with a receiving groove (68) located near the support seat (5). A clamping block (69) is rotatably connected inside the receiving groove (68). The interior of the clamping block (69) is hollowed out, and a telescopic spring (610) is provided inside the clamping block (69). The clamping block (69) is clamped with the end surface of the support seat (5).

3. A coal mine monorail hydraulic support anchor cable drilling rig according to claim 2, characterized in that: The two ends of the telescopic spring (610) are respectively connected to a clamping block (69) and a receiving groove (68), and fixing pins are integrally provided on both sides of the clamping block (69). Pin holes are provided on both inner walls of the receiving groove (68), and the fixing pins are movably connected to the pin holes of the receiving groove (68).

4. The monorail hydraulic support anchor cable drilling rig for coal mines according to claim 3 is characterized in that: The three rotating grooves (75) are arranged in a circular array, the fastening bolts (72) are slidably connected to the inside of the rotating grooves (75), the three sliding grooves (77) pass through the center of the fixed plate (76), and the clamping block (78) moves along the diameter direction of the fixed plate (76).

5. The coal mine monorail hydraulic support anchor cable drilling rig according to claim 4, characterized in that: The surface of the rotating plate (71) is provided with three rotating grooves (74) arranged in a circular array. The rotating groove (74) is in the shape of an arc. The end of the fastening bolt (73) is fixed to the fixing plate (76). The fastening bolt (73) is slidably connected to the inside of the rotating groove (74). The center of the rotating groove (74) is matched with the center of the rotating plate (71).

6. A coal mine monorail hydraulic support anchor cable drilling rig according to any one of claims 1 to 5, characterized in that: The ends of the three clamping blocks (78) are each provided with a contact assembly (9), the contact assembly (9) comprising a second receiving groove (91), the second receiving groove (91) being opened at the end of each clamping block (78), and each clamping block (78) has two second receiving grooves (91), a connecting pin (94) being inserted into the inside of the two second receiving grooves (91), a fixing block (95) being rotatably connected on the connecting pin (94) and located inside the second receiving groove (91), and a contact component being provided at the end of the fixing block (95), and the contact component being in contact with the middle anchor rod (8).

7. A coal mine monorail hydraulic support anchor cable drilling rig according to claim 6, characterized in that: The contact component of the contact assembly (9) is a cleaning brush (92), which is fixed to the end of one of the fixing blocks (95), and the end of the cleaning brush (92) is in contact with the cylindrical surface of the middle anchor rod (8).

8. The coal mine monorail hydraulic support anchor cable drilling rig according to claim 6, characterized in that: The contact component of the contact assembly (9) is a moving wheel (93), which is rotatably connected to the end of one of the fixed blocks (95), and the bottom end of the moving wheel (93) is in contact with the cylindrical surface of the middle anchor rod (8).

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