Light underground drill rig

Abstract

The invention relates to the technical field of mining machinery, and discloses a light underground drill rig which comprises a vehicle body, a supporting arm and a drill arm which are sequentially connected, the drill arm is detachably connected with the supporting arm through a butt joint unit, and the drill arm is any one of a deep hole drill arm and an anchor rod drill arm; the control unit is connected with the supporting arm and the drilling arm, the control unit comprises a deep hole drilling machine module and an anchor rod drilling machine module, and the deep hole drilling machine module and the anchor rod drilling machine module are used for controlling the deep hole drilling arm and the anchor rod drilling arm to act correspondingly; the safety protection unit is arranged on the butt joint unit and used for monitoring the installation state of the drill arm and the supporting arm and giving an alarm. A modularized machine body structure is adopted, the drill arm can be replaced according to operation requirements, integrated design of a deep hole drilling machine and an anchor rod drilling machine is achieved, and the problems that the operation cost is high when two drilling machines are arranged at the same time, and the size and the mass of an underground drill machine are too large are solved; in the using process, the installation state of the drill arm and the supporting arm is monitored, and potential safety hazards are found and treated in time.

Description

Technical Field

[0001] The present invention relates to the technical field of mining machinery, and more specifically, to a light tunnel drilling machine. Background Art

[0002] During tunnel operations, it is necessary to drill the tunnel excavation working surface, and the drilling rig is a commonly used drilling equipment. Existing drilling rigs include deep hole drilling rigs and anchor drilling rigs. One or more of them are selected for combined operation according to construction requirements. When changing types, the original drilling rig needs to be withdrawn and another type of drilling rig is entered. Due to the limitation of the tunnel space, it needs to be repositioned when drilling.

[0003] In the prior art, for example, the invention patent with application number CN202022643277.X discloses an excavation working mechanism that can be quickly connected to a detection drill, including an excavation working mechanism and a detection drill. The end of the excavation working mechanism is detachably connected to a detection drill or a bucket through a quick connector. The drilling module can swing in the horizontal and vertical planes respectively. The excavation working mechanism is hinged to the tunnel excavation equipment through a boom seat, so that the excavation working mechanism can rotate in the horizontal plane. When the bucket is connected to the excavation working mechanism, it is used for excavation. When the detection drill is connected, it is used to detect engineering holes near the drill tunnel. This device connects the detection drill modularly and detachably to the end of the excavation working mechanism, which is easy to disassemble and assemble, reduces the types of equipment and operators, and simplifies equipment management.

[0004] This device detects that the drill rig is connected to the end of the excavation working mechanism by means of a pin shaft and a rotating hook, which can easily become loose during operation, posing a safety hazard.

[0005] Therefore, it is necessary to propose a light tunnel drilling rig to at least partially solve the problems existing in the prior art. Summary of the invention

[0006] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0007] In order to at least partially solve the above problems, the present invention provides a light tunnel drilling machine, comprising:

[0008] A vehicle body, a support arm and a drill arm are connected in sequence, the drill arm and the support arm are detachably connected via a docking unit, and the drill arm is configured as any one of a deep hole drill arm and an anchor drill arm;

[0009] A control unit, the control unit is connected to the support arm and the drill arm, and the control unit includes a deep hole drill module and an anchor drill module, which are used to control the actions of the deep hole drill arm and the anchor drill arm respectively;

[0010] The safety protection unit is arranged on the docking unit and is used to monitor the installation status of the drill arm and the support arm and to issue an alarm.

[0011] Preferably, the docking unit comprises:

[0012] A docking hole, which is arranged at the end of the drill arm, and an electromagnetic block is arranged at the bottom of the docking hole;

[0013] The docking block is arranged on the docking plate at the end of the support arm. When the drill arm is installed, the docking block is installed in the docking hole. A magnetic block is arranged at the end of the docking block. The electromagnetic block attracts the magnetic block after being energized.

[0014] Preferably, a plurality of positioning grooves are provided on the side wall of the docking hole, and a positioning block is provided on the side of the docking block. When the drill arm is installed, the positioning block is engaged with the positioning grooves in a one-to-one correspondence.

[0015] Preferably, the docking block comprises:

[0016] A positioning cavity, which is arranged on one side of the docking block close to the docking plate;

[0017] Guide columns, two guide columns are horizontally connected to the inner wall of the positioning cavity, a guide plate and a pre-pressing plate are slidably connected to the guide columns, the pre-pressing plate is located on the side of the guide columns away from the docking plate, a spring is connected between the guide plate and the pre-pressing plate, and the spring is sleeved on the guide columns;

[0018] The screw rod is screwed to the center of the pre-pressing plate and is arranged parallel to the guide column.

[0019] Preferably, the docking block further comprises:

[0020] A push rod, the push rod is slidably connected to the side wall of the docking block, and the inner end of the push rod is hinged to the guide plate through a connecting rod; at least two push rods are provided, and the plurality of push rods are evenly arranged along the circumferential direction of the docking block;

[0021] A positioning plate is connected to the outer end of the push rod and arranged on the outer side of the docking block. A plurality of positioning blocks are evenly connected to the outer side of the positioning plate, and the positioning blocks are arranged vertically to the positioning plate.

[0022] Preferably, at least two sliding rods are connected to the inner side of the positioning plate, the sliding rods are slidably connected to the side walls of the docking block, and the inner ends of the sliding rods are connected to the blocking pieces.

[0023] Preferably, the docking block further comprises:

[0024] A driving rod is movably arranged on the guide plate, one end of the driving rod is connected with a rotating rod through a spline, and the rotating rod is connected with the screw rod; the other end of the driving rod passes through the docking plate and is connected with the knob; a ring body is connected to the driving rod.

[0025] Preferably, the safety protection unit comprises:

[0026] A pressure sensor is arranged at the end of the positioning block and is used to detect the pressure condition of the positioning block when it is installed in the positioning groove;

[0027] The alarm is arranged on the vehicle body, the alarm and the pressure sensor are electrically connected to the controller, and the controller controls the operation of the alarm according to the pressure detection value.

[0028] Preferably, the safety protection unit also includes:

[0029] A protective plate, the protective plate is rotatably connected to the docking plate, and the driving rod passes through the protective plate;

[0030] An outer sleeve, the outer sleeve is connected to the center of the inner wall of the positioning cavity and is arranged close to the protective plate, a groove is arranged at the end of the outer sleeve, and a channel connected to the inner cavity of the outer sleeve is arranged at the end of the groove;

[0031] The inner sleeve is movably arranged in the outer sleeve, and a lug is arranged at one end of the inner sleeve, and the lug is clamped in the groove; the other end of the inner sleeve passes through the docking plate and is connected with the protective plate; the driving rod passes through the center of the inner sleeve, and the ring body is rotatably connected with the annular groove on the inner sleeve.

[0032] Preferably, the safety protection unit also includes:

[0033] A support seat, multiple support seats are evenly connected to the inner wall of the positioning cavity close to the docking plate. An elastic telescopic part is installed in the support seat. The elastic telescopic part is electrically connected to the controller. The elastic telescopic part passes through the docking plate and is connected to the protective plate. The protective plate is provided with an arc groove for the elastic telescopic part to move.

[0034] Preferably, a gear ring is connected to the inner side of the protective plate, a plurality of gears are meshingly connected to the inner side of the gear ring, and the gear shaft is connected to the protective plate.

[0035] Preferably, the elastic telescopic member comprises:

[0036] Telescopic sleeve, the side wall of the telescopic sleeve is made of elastic material, the two end covers are made of rigid material, and the two end covers of the telescopic sleeve are respectively connected to the end of the support seat and the gear;

[0037] Telescopic rods, multiple telescopic rods are arranged inside the telescopic sleeve, both ends of the telescopic rods are respectively connected to the two end covers of the telescopic sleeve, and the telescopic rods include multiple telescopic sections connected in sequence;

[0038] The telescopic joint includes a first connecting sleeve, a second connecting sleeve and a telescopic piece. The first connecting sleeve is provided with a slot and a first flange at both ends respectively; a telescopic slide rod and a bayonet are provided at both ends respectively, and the middle of the second connecting sleeve is connected with a second flange; the telescopic piece is connected between the first flange and the second flange, and the telescopic piece is arranged in a Z shape; the bayonet of the second connecting sleeve is connected to the slot of the first connecting sleeve on the adjacent telescopic joint.

[0039] Preferably, the elastic telescopic member further comprises:

[0040] A rotating telescopic member, the rotating telescopic member is closely connected to the outer wall of the telescopic sleeve, the two ends of the rotating telescopic member are connected to the two end covers of the telescopic sleeve, and the rotating telescopic member is inclined relative to the axis of the telescopic sleeve; the rotating telescopic member is arranged in a wave shape;

[0041] The supporting telescopic member is closely connected to the inner wall of the telescopic sleeve, the two ends of the supporting telescopic member are connected to the two end covers of the telescopic sleeve, the supporting telescopic member is inclined relative to the axis of the telescopic sleeve, and the inclination direction is opposite to that of the rotating telescopic member; the supporting telescopic member is arranged in a wave shape;

[0042] A heating wire is arranged on the inner wall of the support seat, and the heating wire is electrically connected to the controller;

[0043] The expansion piece and the rotating expansion piece are made of memory alloy material, and the expansion piece and the rotating expansion piece have a tendency to become straight after the temperature rises.

[0044] Compared with the prior art, the present invention has at least the following beneficial effects:

[0045] A light tunnel drilling rig provided by the present invention adopts a modular body structure. The drill arm can be replaced according to the operation requirements, realizing the integrated design of the deep hole drilling rig and the anchor drilling rig, solving the problem of high operation cost of equipping two drilling rigs at the same time; at the same time, it solves the problem that the size and mass of the tunnel drilling rig are too large when the two drill arms are simultaneously arranged on the vehicle body; the deep hole drilling arm and the anchor drilling arm are respectively used as two independent modules, each module has its own power system and control unit, thereby improving the compatibility of the two drill arms with the drilling rig; and it is possible to monitor the installation status of the drill arm and the support arm during use, timely discover and deal with safety hazards, and ensure the continuous and stable operation of the equipment.

[0046] The light tunnel drilling rig described in the present invention, other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0048] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 It is a structural schematic diagram of the docking unit in the present invention;

[0050] Figure 3 It is a schematic diagram of the cross-sectional structure of the docking block in the present invention;

[0051] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0052] Figure 5 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0053] Figure 6 It is a schematic diagram of the installation structure of the outer sleeve and the inner sleeve in the present invention;

[0054] Figure 7 It is a schematic diagram of the structure of the inner side of the protective plate in the present invention;

[0055] Figure 8 It is a schematic diagram of the structure of the elastic telescopic member in the present invention (with both end covers unfolded);

[0056] Fig. 9 It is a schematic diagram of the connection structure of the expansion joint in the present invention;

[0057] Fig.10 It is a schematic diagram of the cross-sectional structure of the expansion joint in the present invention;

[0058] Fig.11 Schematic diagram of the rotation direction of the elastic telescopic member in the present invention (rotation of the telescopic member to extend).

[0059] In the figure: 1. vehicle body; 2. support arm; 3. drill arm; 11. docking hole; 12. positioning groove; 13. docking block; 14. docking plate; 21. positioning cavity; 22. guide column; 23. guide plate; 24. pre-pressing plate; 25. screw rod; 26. push rod; 27. connecting rod; 28. positioning plate; 29. ​​positioning block; 31. sliding rod; 32. electromagnetic block; 33. magnetic block; 34. baffle; 35. ring body; 41. driving rod; 42. rotating rod; 43. Protective plate; 44. Outer sleeve; 45. Groove; 46. Channel; 47. Inner sleeve; 48. Lug; 49. Support seat; 51. Telescopic sleeve; 52. Telescopic rod; 53. First connecting sleeve; 54. Second connecting sleeve; 55. Telescopic sheet; 56. Slot; 57. First flange; 58. Telescopic slide rod; 59. Bayonet; 61. Second flange; 62. Rotating telescopic member; 63. Supporting telescopic member; 64. Gear; 65. Gear ring. DETAILED DESCRIPTION

[0060] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0061] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0062] Embodiment 1:

[0063] like Figure 1 As shown, the present invention provides a light tunnel drilling machine, comprising:

[0064] A vehicle body 1, a support arm 2 and a drill arm 3 are connected in sequence, the drill arm 3 is detachably connected to the support arm 2 via a docking unit, and the drill arm 3 is configured as any one of a deep hole drill arm and an anchor drill arm;

[0065] A control unit, which is connected to the support arm 2 and the drilling arm 3. The control unit includes a deep hole drilling machine module and an anchor drilling machine module, which are used to control the actions of the deep hole drilling arm and the anchor drilling arm respectively;

[0066] The safety protection unit is arranged on the docking unit and is used to monitor the installation status of the drill arm 3 and the support arm 2 and issue an alarm.

[0067] The working principle and beneficial effects of the above technical solution are:

[0068] A light tunnel drilling rig includes three structural modules: a body 1, a support arm 2 and a drill arm 3. The drill arm 3 can be set to any one of a deep hole drill arm and an anchor drill arm, and the two drill arms 3 have corresponding power systems and control modules. When the drilling rig is in use, the appropriate drill arm 3 is selected according to the adopted operation mode, and the drill arm 3 is installed on the support arm 2 through a docking unit; the control unit controls the movement of the support arm 2 and the drill arm 3 to move the drill rod or anchor rod to a preset position for drilling operations; a safety protection unit is used to detect the connection status of the drill arm 3 and the support arm 2. When there is a risk of falling off, an alarm is activated and the staff stops the machine for maintenance.

[0069] Through the above structural design, a light tunnel drilling rig is provided, which adopts a modular body structure. The drill arm 3 can be replaced according to the operation requirements, realizing the integrated design of the deep hole drilling rig and the anchor drilling rig, and solving the problem of high operation cost of equipping two drilling rigs at the same time; at the same time, it solves the problem that the two drill arms 3 are simultaneously arranged on the vehicle body 1, and the volume and mass of the tunnel drilling rig are too large; the deep hole drilling arm and the anchor drilling arm are respectively used as two independent modules, each module has its own power system and control unit, so as to improve the compatibility of the two drill arms 3 with the drilling rig; and it is possible to monitor the installation status of the drill arm 3 and the support arm 2 during use, timely discover and deal with safety hazards, and ensure the continuous and stable operation of the equipment.

[0070] Embodiment 2:

[0071] like Figure 2-6 As shown, based on the above embodiment 1, the docking unit includes:

[0072] A docking hole 11, which is arranged at the end of the drill arm 3, and an electromagnetic block 32 is arranged at the bottom of the docking hole 11;

[0073] The docking block 13 is arranged on the docking plate 14 at the end of the support arm 2. When the drill arm 3 is installed, the docking block 13 is installed in the docking hole 11. A magnetic block 33 is arranged at the end of the docking block 13. The electromagnetic block 32 attracts the magnetic block 33 after being energized.

[0074] The working principle and beneficial effects of the above technical solution are:

[0075] When the docking unit is in use, the docking block 13 is aligned with the docking hole 11 and extended into the interior thereof, and at the same time, the electromagnetic block 32 is energized so that it has magnetic attraction to the magnetic block 33, so that the docking block 13 is firmly connected to the docking hole 11, so that the drill arm 3 and the support arm 2 can be quickly installed, and the installation method is simple and convenient with high reliability.

[0076] Embodiment 3:

[0077] like Figure 2-6 As shown, based on the above-mentioned embodiment 2, a plurality of positioning grooves 12 are provided on the side wall of the docking hole 11, and a positioning block 29 is provided on the side of the docking block 13. When the drill arm 3 is installed, the positioning block 29 is engaged with the positioning groove 12 in a one-to-one correspondence.

[0078] The working principle and beneficial effects of the above technical solution are:

[0079] When the docking block 12 is installed in the docking hole 11, the positioning block 29 is tightly attached to the side of the docking block 12 and does not affect the insertion of the docking block 12; when the docking block 12 is installed in the docking hole 11, the positioning block 29 is extended and engaged with the positioning groove 12, so that the axial direction of the docking block 12 is accurately positioned, which helps to improve the stability of the connection and the control accuracy of the drill arm 3.

[0080] Embodiment 4:

[0081] like Figure 2-6 As shown, based on the above embodiment 3, the docking block 13 includes:

[0082] A positioning cavity 21, which is disposed on one side of the docking block 13 close to the docking plate 14;

[0083] Guide columns 22, two guide columns 22 are horizontally connected to the inner wall of the positioning cavity 21, and a guide plate 23 and a pre-pressing plate 24 are slidably connected to the guide columns 22. The pre-pressing plate 24 is located on the side of the guide columns 22 away from the docking plate 14. A spring is connected between the guide plate 23 and the pre-pressing plate 24, and the spring is sleeved on the guide columns 22;

[0084] A screw 25, which is screwed to the center of the pre-pressing plate 24 and is arranged parallel to the guide column 22;

[0085] A push rod 26, the push rod 26 is slidably connected to the side wall of the docking block 13, and the inner end of the push rod 26 is hinged to the guide plate 23 through a connecting rod 27; at least two push rods 26 are provided, and the plurality of push rods 26 are evenly arranged along the circumferential direction of the docking block 13;

[0086] The positioning plate 28 is connected to the outer end of the push rod 26 and arranged outside the docking block 13 . A plurality of positioning blocks 29 are evenly connected to the outer side of the positioning plate 28 , and the positioning blocks 29 are arranged perpendicular to the positioning plate 28 .

[0087] The working principle and beneficial effects of the above technical solution are:

[0088] When the docking block 13 is installed, the screw rod 25 is rotated, and the screw rod 25 and the pre-loading plate 24 are threadedly transmitted, so that the pre-loading plate 24 slides along the guide column 22, and the pre-loading plate 24 gradually approaches the guide plate 23. The spring between the pre-loading plate 24 and the guide plate 23 is subjected to pressure, pushing the guide plate 23 to move to the side close to the docking plate 14; during the movement of the guide plate 23, the connecting rod 27 is driven to rotate, so that the push rod 26 moves toward the outside of the docking block 13, the positioning plate 28 moves outward, and the positioning block 29 is engaged in the positioning groove 12, that is, the driving of the positioning block 29 is realized; the push rod 26 is set to be multiple, and the corresponding positioning plate 28 is also set to be multiple, which can improve the engagement effect of the positioning block 29 and the positioning groove 12, and improve the limit reliability; when the positioning block 29 is engaged with the positioning groove 12, the screw rod 25 is continued to be rotated to further reduce the distance between the pre-loading plate 24 and the guide plate 23, that is, the spring is further compressed to improve the connection stability of the positioning block 29 and the positioning groove 12.

[0089] Embodiment 5:

[0090] like Figure 2-6As shown, based on the above-mentioned embodiment 4, at least two slide bars 31 are connected to the inner side of the positioning plate 28 , the slide bars 31 are slidably connected to the side wall of the docking block 13 , and the inner ends of the slide bars 31 are connected to the blocking pieces 34 .

[0091] The working principle and beneficial effects of the above technical solution are:

[0092] A slide bar 31 is provided on the positioning plate 28. When the push rod 26 moves, the slide bar 31 slides relative to the side wall of the docking block 13, guiding the movement of the push rod 26, improving the synchronization of the movement of both sides of the positioning plate 28, and effectively preventing the positioning plate 29 from tilting and the positioning block 29 from being unable to accurately engage with the positioning groove 12.

[0093] Embodiment 6:

[0094] like Figure 2-6 As shown, based on the above-mentioned embodiment 4, the docking block 13 further includes:

[0095] The driving rod 41 is movably arranged on the guide plate 23. One end of the driving rod 41 is connected to a rotating rod 42 through a spline, and the rotating rod 42 is connected to the screw rod 25. The other end of the driving rod 41 passes through the docking plate 14 and is connected to the knob. The driving rod 41 is connected to a ring body 35.

[0096] The working principle and beneficial effects of the above technical solution are:

[0097] When the docking block 13 is in use, the knob is turned to drive the driving rod 41 to rotate, and the driving rod 41 drives the rotating rod 42 to rotate through the spline, thereby driving the screw 25; the end of the driving rod 31 rotates relative to the guide plate 23, and when the guide plate 23 slides to a preset position along the guide column 22, the end of the driving rod 31 is separated from the guide plate 23, which can effectively avoid accidental contact with the knob and the driving rod 41 after the docking block 13 is installed, and the influence on the guide plate 23 and the positioning block 28 can be avoided.

[0098] Embodiment 7:

[0099] Based on the above embodiment 3, the security protection unit includes:

[0100] A pressure sensor is disposed at the end of the positioning block 29 and is used to detect the pressure applied to the positioning block 29 when it is installed in the positioning groove 12;

[0101] The alarm is arranged on the vehicle body 1, and the alarm and the pressure sensor are electrically connected to the controller, and the controller controls the operation of the alarm according to the pressure detection value.

[0102] The working principle and beneficial effects of the above technical solution are:

[0103] When the docking block 13 is installed, the end of the positioning block 29 contacts the bottom of the positioning groove 12 and maintains a certain pressure; a pressure sensor is used to detect the pressure condition of the end of the positioning block 29. When the pressure values ​​detected by each positioning block 29 exceed the preset value, it indicates that the positioning block 29 is installed stably and the drill arm 3 and the support arm 2 are installed stably; when the pressure value of one or more positioning blocks 29 is detected to be less than the preset value, it indicates that there is a risk of loosening between the positioning block 29 and the positioning groove 12. The controller activates the alarm to remind the staff to shut down the machine for inspection and maintenance, promptly discover and deal with safety hazards, and ensure the continuous and stable operation of the equipment.

[0104] Embodiment 8:

[0105] like Figure 2-6 As shown, based on the above embodiment 6, the security protection unit further includes:

[0106] A protective plate 43, the protective plate 43 is rotatably connected to the docking plate 14, and the driving rod 41 passes through the protective plate 43;

[0107] An outer sleeve 44, which is connected to the center of the inner wall of the positioning cavity 21 and is disposed close to the protective plate 43, and a groove 45 is disposed at the end of the outer sleeve 44, and a channel 46 connected to the inner cavity of the outer sleeve 44 is disposed at the end of the groove 45;

[0108] The inner sleeve 47 is movably arranged in the outer sleeve 44. A lug 48 is arranged at one end of the inner sleeve 47, and the lug 48 is clamped in the groove 45. The other end of the inner sleeve 47 passes through the docking plate 14 and is connected to the protective plate 43. The driving rod 41 passes through the center of the inner sleeve 47, and the ring body 35 is rotatably connected to the annular groove on the inner sleeve 47.

[0109] A support seat 49, multiple support seats 49 are evenly connected to the inner wall of the positioning cavity 21 near the docking plate 14, an elastic telescopic part is installed in the support seat 49, the elastic telescopic part is electrically connected to the controller, the elastic telescopic part passes through the docking plate 14 and is connected to the protective plate 43, and an arc groove is provided on the protective plate 43 for the elastic telescopic part to move.

[0110] The working principle and beneficial effects of the above technical solution are:

[0111] When the safety protection unit is in use, when the controller detects an abnormal pressure situation, it automatically starts the elastic telescopic member in the support seat 49, causing the elastic telescopic member to rotate and extend; the rotation of the elastic telescopic member drives the protective plate 43 to rotate, and the protective plate 43 simultaneously drives the inner sleeve 47 to rotate in the outer sleeve 44, causing the lug 48 to rotate in the groove 45 until the lug 48 rotates to correspond to the channel 46. At this time, the limit of the inner sleeve 47 is released, so that it can move along the axis; as the elastic telescopic member extends, the protective plate 43 is pushed to move and away from the docking plate 14; the protective plate 43 drives the inner sleeve 47 to move outward, and with the cooperation of the ring body 35 and the annular groove, drives the driving rod 41 to move outward; the end of the driving rod 41 contacts the guide plate 23 again; and as the driving rod 41 moves, it drives the guide plate 23 to move toward the docking plate 14, and then drives the positioning plate 28 to move outward, so that the positioning block 29 is tightly engaged with the positioning groove 12 to maintain a stable installation state.

[0112] Through the above-mentioned structural design, when an abnormal pressure situation is detected, the protective plate 43 is automatically driven to move, so that the driving rod 41 moves to press the guide plate 23, and then the positioning block 29 is re-pressed in the positioning groove 12, which plays the function of automatic locking. When the drill arm 3 is at risk of falling off, safety protection is automatically performed, and the falling time of the drill arm 3 is delayed, thereby effectively improving the safety of the equipment. At the same time, the staff can intuitively understand the use status of the safety protection unit according to the position status of the protective plate 43. The action of the protective plate 43 includes two processes: rotation and axial movement, which reduces the possibility of accidental activation of the protective plate 43 during the use of the drilling rig.

[0113] Embodiment 9:

[0114] like Figure 7 As shown, on the basis of the above-mentioned embodiment 8, a gear ring 65 is connected to the inner side of the protective plate 43 , and a plurality of gears 64 are meshingly connected to the inner side of the gear ring 65 , and the gear 64 shaft is connected to the protective plate 43 .

[0115] like Figure 8-11 As shown, the elastic telescopic member includes:

[0116] Telescopic sleeve 51, the side wall of the telescopic sleeve 51 is made of elastic material, and the two end covers are made of rigid material. The two end covers of the telescopic sleeve 51 are respectively connected to the end of the support seat 49 and the gear 64;

[0117] Telescopic rods 52, multiple telescopic rods 52 are arranged inside the telescopic sleeve 51, both ends of the telescopic rods 52 are respectively connected to the two end covers of the telescopic sleeve 51, and the telescopic rods 52 include multiple telescopic sections connected in sequence;

[0118] The telescopic joint includes a first connecting sleeve 53, a second connecting sleeve 54 and a telescopic piece 55. The first connecting sleeve 52 is provided with a slot 56 and a first flange 57 at both ends; the second connecting sleeve 54 is provided with a telescopic slide rod 58 and a bayonet 59 at both ends, and the middle of the second connecting sleeve 54 is connected with a second flange 61; the telescopic piece 55 is connected between the first flange 57 and the second flange 61, and the telescopic piece 55 is arranged in a Z shape; the bayonet 59 of the second connecting sleeve 54 is connected to the slot 56 of the first connecting sleeve 53 on the adjacent telescopic joint;

[0119] The rotating telescopic member 62 is closely connected to the outer wall of the telescopic sleeve 51, and the two ends of the rotating telescopic member 62 are connected to the two end covers of the telescopic sleeve 51, and the rotating telescopic member 62 is inclined relative to the axis of the telescopic sleeve 51; the rotating telescopic member 62 is arranged in a wave shape;

[0120] The supporting telescopic member 63 is closely connected to the inner wall of the telescopic sleeve 51, and the two ends of the supporting telescopic member 63 are connected to the two end covers of the telescopic sleeve 51. The supporting telescopic member 63 is tilted relative to the axis of the telescopic sleeve 51, and the tilting direction is opposite to that of the rotating telescopic member 62; the supporting telescopic member 63 is arranged in a wave shape;

[0121] The inner wall of the support seat 49 is provided with a heating wire, and the heating wire is electrically connected to the controller;

[0122] The expansion piece 55 and the rotating expansion piece 62 are made of memory alloy material. The expansion piece 55 and the rotating expansion piece 62 have a tendency to become straightened when the temperature rises.

[0123] The working principle and beneficial effects of the above technical solution are:

[0124] When the safety protection unit is in use, the controller controls the heating wire to heat up, so that the temperature inside the support seat 49 rises, and the temperature is preferentially transmitted to the rotating telescopic member 62 on the outside of the elastic telescopic member, causing it to deform and stretch; because the rotating telescopic member 62 is arranged obliquely, the supporting telescopic member 63 on the inside does not actively deform, so as the rotating telescopic member 62 stretches, the telescopic sleeve 51 twists, and the end cover of one end of the rotating telescopic member 62 is fixed on the support seat 49, and the end cover of the other end drives the gear 64 to rotate, and the gear 64 is meshed with the inner side of the gear ring 65 for transmission, driving the protective plate 43 rotates itself, that is, the protective plate 43 is driven to rotate; as the temperature is transferred to the inside of the elastic telescopic member, the temperature of the telescopic piece 55 rises and then the telescopic piece 55 is unfolded, so that the first flange 57 of the first connecting sleeve 52 and the second flange 61 of the second connecting sleeve 54 are separated from each other, and the telescopic slide rod 58 slides along the inner wall of the first connecting sleeve 53; under the joint action of multiple telescopic joints, the total length of the telescopic rod 52 is increased, thereby driving the elastic telescopic member to lengthen as a whole, pushing the protective plate 43 to move away from the docking plate, that is, driving the protective plate 43 to move in the axial direction. When the safety protection unit is not in use, the controller cuts off the power to the heating wire to cool it down, and the deformation of the telescopic piece 55 and the rotating telescopic member 62 is restored, so that the protective plate 43 moves in the opposite direction and rotates and resets; the protective plate 43 is provided with an arc groove for the elastic telescopic member to move, and there is no obstruction when the elastic telescopic member moves.

[0125] Through the above-mentioned structural design, the telescopic piece 55 and the rotating telescopic part 62 are made of memory alloy material, and the deformation of the memory alloy is utilized to effectively realize the driving of the rotation and extension of the elastic telescopic part, so that the elastic telescopic part can maintain a certain rigidity after being rotated and lengthened, thereby ensuring the pressure of the driving rod 41 on the guide plate 23, and improving the reliability of safety protection; the combined arrangement of the telescopic piece 55 and the rotating telescopic part 62 is adopted to reduce the power source in the safety protection process, ensure the continuity of the protection action, and reduce the difficulty of protection control; and the memory alloy material can restore the deformation after cooling, so as to facilitate subsequent reuse.

[0126] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0127] 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0128] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A light tunnel drilling rig, characterized in that: include: A vehicle body (1), a support arm (2) and a drill arm (3) connected in sequence, the drill arm (3) and the support arm (2) being detachably connected via a docking unit, and the drill arm (3) being configured as any one of a deep hole drill arm and an anchor drill arm; A control unit, the control unit is connected to the support arm (2) and the drilling arm (3), the control unit comprises a deep hole drilling machine module and an anchor drilling machine module, and is used to control the movements of the deep hole drilling arm and the anchor drilling arm respectively; A safety protection unit is arranged on the docking unit and is used to monitor the installation status of the drilling arm (3) and the support arm (2) and to issue an alarm.

2. A light tunnel drilling rig according to claim 1, characterized in that: The docking unit includes: A docking hole (11), the docking hole (11) is arranged at the end of the drill arm (3), and an electromagnetic block (32) is arranged at the bottom of the docking hole (11); A docking block (13) is arranged on a docking plate (14) at the end of the support arm (2); when the drill arm (3) is installed, the docking block (13) is installed in the docking hole (11); a magnetic block (33) is arranged at the end of the docking block (13); and the electromagnetic block (32) attracts the magnetic block (33) when power is supplied.

3. A light tunnel drilling rig according to claim 2, characterized in that: A plurality of positioning grooves (12) are arranged on the side wall of the docking hole (11), and a positioning block (29) is arranged on the side of the docking block (13). When the drill arm (3) is installed, the positioning block (29) is connected to the positioning groove (12) in a one-to-one corresponding manner.

4. A light tunnel drilling rig according to claim 3, characterized in that: The docking block (13) comprises: A positioning cavity (21), the positioning cavity (21) being arranged on a side of the docking block (13) close to the docking plate (14); Guide columns (22), two guide columns (22) are horizontally connected to the inner wall of the positioning cavity (21), a guide plate (23) and a pre-pressing plate (24) are slidably connected to the guide columns (22), the pre-pressing plate (24) is located on the side of the guide columns (22) away from the docking plate (14), a spring is connected between the guide plate (23) and the pre-pressing plate (24), and the spring is sleeved on the guide columns (22); The screw rod (25) is screwed to the center of the pre-pressing plate (24) and is arranged parallel to the guide column (22).

5. A light tunnel drilling rig according to claim 4, characterized in that: The docking block (13) also includes: A push rod (26), the push rod (26) is slidably connected to the side wall of the docking block (13), and the inner end of the push rod (26) is hinged to the guide plate (23) through a connecting rod (27); at least two push rods (26) are provided, and the plurality of push rods (26) are evenly arranged along the circumferential direction of the docking block (13); A positioning plate (28) is connected to the outer end of the push rod (26) and arranged outside the docking block (13); a plurality of positioning blocks (29) are evenly connected to the outer side of the positioning plate (28), and the positioning blocks (29) are arranged vertically to the positioning plate (28).

6. A light tunnel drilling rig according to claim 5, characterized in that: At least two slide bars (31) are connected to the inner side of the positioning plate (28), the slide bars (31) are slidably connected to the side wall of the docking block (13), and the inner ends of the slide bars (31) are connected to the blocking pieces (34).

7. A light tunnel drilling machine according to claim 5, characterized in that: The docking block (13) also includes: A driving rod (41) is movably arranged on the guide plate (23); one end of the driving rod (41) is connected to a rotating rod (42) through a spline, and the rotating rod (42) is connected to the screw rod (25); the other end of the driving rod (41) passes through the docking plate (14) and is connected to the knob; and a ring body (35) is connected to the driving rod (41).

8. A light tunnel drilling machine according to claim 7, characterized in that: The safety protection unit includes: A pressure sensor, the pressure sensor being arranged at the end of the positioning block (29) and being used to detect the pressure condition of the positioning block (29) when installed in the positioning groove (12); An alarm is arranged on the vehicle body (1); the alarm and the pressure sensor are electrically connected to a controller; and the controller controls the operation of the alarm according to the pressure detection value.

9. A light tunnel drilling machine according to claim 8, characterized in that: The safety protection unit also includes: A protective plate (43), the protective plate (43) is rotatably connected to the docking plate (14), and the driving rod (41) passes through the protective plate (43); An outer sleeve (44), the outer sleeve (44) is connected to the center of the inner wall of the positioning cavity (21) and is arranged close to the protective plate (43), a groove (45) is arranged at the end of the outer sleeve (44), and a channel (46) connected to the inner cavity of the outer sleeve (44) is arranged at the end of the groove (45); The inner sleeve (47) is movably arranged in the outer sleeve (44); one end of the inner sleeve (47) is provided with a lug (48), and the lug (48) is clamped in the groove (45); the other end of the inner sleeve (47) passes through the docking plate (14) and is connected with the protective plate (43); the driving rod (41) passes through the center of the inner sleeve (47), and the ring body (35) is rotatably connected with the annular groove on the inner sleeve (47).

10. A light tunnel drilling machine according to claim 9, characterized in that: The safety protection unit also includes: A support seat (49), wherein a plurality of support seats (49) are evenly connected to a side of the inner wall of the positioning cavity (21) close to the docking plate (14), an elastic telescopic member is installed in the support seat (49), the elastic telescopic member is electrically connected to the controller, the elastic telescopic member passes through the docking plate (14) and is connected to the protective plate (43), and an arc groove is provided on the protective plate (43) for the elastic telescopic member to move.

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