Overlying rock drilling device

Abstract

The utility model provides an overlying strata drilling device which comprises a drilling machine, the bottom of the drilling machine is fixedly connected with a drilling machine base, one end of the drilling machine base is provided with a positioning shaft, the two ends of the positioning shaft are rotationally connected with a lining bar located below the drilling machine base, and the free end of the lining bar is rotationally connected with an adjusting rod. The other end of the drilling machine base is rotationally connected with a screw sleeve, the screw sleeve is connected with the adjusting rod in a screwed mode, and the bottom of the lining bar is fixedly connected with an anchor rod. The lining bar is vertically and rotatably connected to the bottom of the drilling machine base, the anchor rod is arranged at the bottom of the lining bar, the free end of the lining bar is hinged to the adjusting rod connected with the screw sleeve arranged on the drilling machine base in a screwed mode, and the inclination angle of the opposite placing face of the drilling machine base can be adjusted by controlling the adjusting rod to rotate. And in addition, the resistance of the drilling machine base and the resistance of the drilling machine placed on the ground are greatly increased through the arrangement of the anchor rod, and the stability of drilling machining is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of overburden rock separation grouting, in particular to an overburden rock drilling device. Background Art

[0002] In recent years, coal mine overburden separation layer grouting filling technology has played an important role in green coal mining, ensuring the normal production and service life of coal mining enterprises, protecting the safety of ground buildings and water resources, and becoming the main technical means for water conservation mining. However, in the application of overburden separation layer grouting filling technology, the main technical work is to determine the reasonable grouting layer position, which not only determines the grouting process, but also has an impact on the actual grouting effect. Most of the existing overburden separation layer grouting layer position determination methods are to drill multiple boreholes from the ground to the underground, and determine the grouting layer position through indicators such as changes in borehole injection flow. This method is complex and requires a large amount of construction.

[0003] At present, a utility model with publication number CN217001661U proposes a rock overburden drilling device, which relates to the technical field of rock overburden delamination grouting, wherein the rock overburden drilling device includes a measuring rod, an external protective shell, a computer and a wireless router, the measuring rod is fixedly connected to the drilling rig base through a fixed frame, the outer part of the measuring rod is sleeved with a sleeve rod, the outer part of the drill sleeve is tightly sleeved with a clamp, the clamp and the sleeve rod are fixedly connected by bolts, the external protective shell is fixedly installed on the drill rod, a wireless vibration sensor and a counterweight are installed in the external protective shell, the wireless vibration sensor and the counterweight are symmetrically distributed on both sides of the drill rod, and the wireless vibration sensor is connected to the computer through a wireless router; the utility model also provides a method for different filling layers of rock overburden grouting to solve the problem that the rock overburden delamination area of ​​the coal roadway roof is difficult to detect, thereby correcting the grouting parameters and improving the efficiency of rock overburden grouting.

[0004] However, the above-mentioned prior art still has the following shortcomings when used: 1. It is inconvenient to adjust the inclination angle of the drilling rig relative to the tunnel floor, and the drilling rig base is easily misaligned relative to the tunnel floor due to vibration of the inclined drilling rig, resulting in the defect that the base is not firmly placed; 2. The drilling rig base does not have a walking function, and when it needs to be moved, it needs to be manually carried, which is relatively laborious.

[0005] To this end, the utility model provides a rock-covering drilling device. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a rock drilling device to solve the problems raised in the above-mentioned background technology. The utility model has the advantages of more convenient adjustment of the inclination angle of the drilling machine, more stable drilling processing, convenient transfer, and more labor-saving.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a rock drilling device, including a drilling rig, the bottom of the drilling rig is fixedly connected to a drilling rig base, one end of the drilling rig base is provided with a positioning shaft, both ends of the positioning shaft are rotatably connected to a pad rod located below the drilling rig base, the free end of the pad rod is rotatably connected to an adjusting rod, the other end of the drilling rig base is rotatably connected to a threaded sleeve, the threaded sleeve and the adjusting rod are screwed together, and the bottom of the pad rod is fixedly connected to an anchor rod.

[0008] Furthermore, a grooved plate is welded to one end of the pad rod, and a connecting sleeve which is sleeved on the outside of the positioning shaft is welded to the free end of the grooved plate.

[0009] Furthermore, an anchor pin close to the bottom is welded to the outer peripheral wall of the connecting sleeve.

[0010] Furthermore, a hinge seat is welded to the free end of the pad rod, and the hinge seat is hingedly connected to the transfer table at the bottom of the adjusting rod. A clearance gap is opened at the other end of the drilling rig base, and positioning holes are opened on both sides of the clearance gap. A limiting shaft rotatably connected to the positioning hole is welded to the outer peripheral wall of the thread sleeve.

[0011] Furthermore, a baffle is welded at the mouth of the clearance gap, and two locking screws respectively close to the upper and lower ends are screwed through the baffle, and one end of the locking screw is opposite to the outer peripheral wall of the thread sleeve.

[0012] Furthermore, rollers are provided on both sides of the drilling rig base, and when the adjusting rod is parallel to the drilling rig base, after the drilling rig base is placed on the ground, the rollers are in contact with the ground and the adjusting rod is in a suspended state.

[0013] Furthermore, support shafts are welded on both sides of the drilling rig base near both ends, and the support shafts are connected to rollers through bearings, and the outer peripheral sleeve of the roller is provided with a shock-absorbing sleeve.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model connects a pad rod to the bottom of the drilling rig base by rotating up and down, an anchor rod is arranged at the bottom of the pad rod, and then the free end of the pad rod is hinged to an adjusting rod which is screwed and connected to a threaded sleeve arranged on the drilling rig base. The inclination angle of the drilling rig base relative to the placement surface can be adjusted by controlling the rotation of the adjusting rod, thereby having the advantage of more convenient adjustment of the inclination angle of the drilling machine. Moreover, the arrangement of the anchor rod greatly increases the resistance between the drilling rig base and the placement ground, thereby improving the stability of the drilling process.

[0016] 2. The utility model arranges rollers on both sides of the drilling rig base, and the rollers are arranged close to the two ends of the drilling rig base. When the pad rod is close to the drilling rig base, the drilling rig base can move on the placement surface through the rollers. Therefore, the device has the advantage of being more convenient and labor-saving to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a rock overburden drilling device of the utility model;

[0018] Figure 2 for Figure 1 The main view of

[0019] Figure 3 It is a structural schematic diagram of the detailed connection between the thread sleeve and the drilling rig base of a rock overburden drilling device of the utility model;

[0020] In the figure: 1. drilling machine; 3. drilling rig base; 31. clearance gap; 312. baffle; 32. support shaft; 4. positioning shaft; 5. pad rod; 51. grooved plate; 511. connecting sleeve; 5111. anchor; 52. hinged seat; 6. adjusting rod; 7. thread sleeve; 71. limit shaft; 8. locking screw; 9. roller; 91. shock-absorbing sleeve; 101. anchor rod. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a rock drilling device, including a drilling machine 1. The structure of the drilling machine 1 adopts the structure of the prior art mentioned in the background technology. The bottom of the drilling machine 1 is fixedly connected to a drilling rig base 3. When in use, the drilling rig base 3 is placed on the bottom plate of the tunnel. The drilling rig base 3 plays a role in supporting the drilling machine 1. During drilling processing, the drilling machine 1 needs to be kept in an inclined state.

[0023] In the technical scheme, a positioning shaft 4 is provided at one end of the drilling rig base 3, and the positioning shaft 4 is located below the drilling rig base 3. The two ends of the positioning shaft 4 are rotatably connected to a pad rod 5 located below the drilling rig base 3. Specifically, a groove plate 51 is welded at one end of the pad rod 5, and a connecting sleeve 511 sleeved on the outside of the positioning shaft 4 is welded at the free end of the groove plate 51. The free end of the pad rod 5 is rotatably connected to the adjusting rod 6, and the other end of the drilling rig base 3 is rotatably connected to the thread sleeve 7. Specifically, a hinge seat 52 is welded at the free end of the pad rod 5, and the hinge seat 52 is hingedly connected to the transfer table at the bottom of the adjusting rod 6, wherein the transfer table is rotatably connected to the adjusting rod 6, and a clearance gap 31 is provided at the other end of the drilling rig base 3, and positioning holes are provided on both sides of the clearance gap 31, and a limiting shaft 71 rotatably connected to the positioning hole 311 is welded on the outer peripheral wall of the thread sleeve 7. The thread sleeve 7 is screwed and connected to the adjusting rod 6. When the control adjustment rod 6 rotates, the pad rod 5 will swing up and down relative to the drilling rig base 3. When in use, the bottom of the pad rod 5 contacts the tunnel floor. This arrangement makes it more convenient to adjust the inclination of the drilling rig base 3.

[0024] The bottom of the pad rod 5 is fixedly connected with an anchor rod 101. When in use, the anchor rod 101 will sink into the tunnel floor, which can increase the resistance between the pad rod 5 and the tunnel floor. Therefore, when the drilling machine 1 vibrates during drilling, the pad rod 5 will not slip, thereby improving the stability of the drilling process.

[0025] Furthermore, an anchor 5111 close to the bottom is welded to the outer peripheral wall of the connecting sleeve 511 , and the anchor 5111 on the connecting sleeve 511 and the anchor 101 at the bottom of the pad rod 5 can further improve the stability of the support for the drilling machine 1 .

[0026] In this embodiment, a baffle 312 is welded at the mouth of the yielding notch 31, and two locking screws 8 respectively close to the upper and lower ends are screwed through the baffle 312. One end of the locking screw 8 is opposite to the outer peripheral wall of the thread sleeve 7. When the inclination angle of the drilling rig base 3 relative to the tunnel bottom plate is adjusted, the locking screw 8 is controlled to be tightened. At this time, the thread sleeve 7 is locked and cannot rotate. This arrangement can lock the adjusting rod 6 to avoid the problem of the adjusting rod 6 loosening and rotating relative to the thread sleeve 7, and has the advantage of effectively resisting drilling vibration.

[0027] In this embodiment, rollers 9 are provided on both sides of the drill rig base 3, and when the adjustment rod 6 and the drill rig base 3 are parallel, after the drill rig base 3 is placed on the ground, the rollers 9 are in contact with the ground and the adjustment rod 6 is in a suspended state, and at the same time, the anchor rod 101 and the anchor nail 5111 are also in a suspended state. This arrangement facilitates the drill rig base 3 to walk on the tunnel floor through the rollers 9.

[0028] Furthermore, support shafts 32 are welded on both sides of the drilling rig base 3 near both ends, and the support shafts 32 are connected to the roller 9 through bearings. The outer peripheral sleeve of the roller 9 is provided with a shock-absorbing sleeve 91 to improve the walking stability of the roller 9.

[0029] Working principle: When fixed-point drilling is required, push the drilling machine 1, and the roller 9 moves along the tunnel floor. After reaching the position, control the adjustment rod 6 to rotate. Under the rotation action, the adjustment rod 6 moves downward, and at the same time, the drilling rig base 3 swings up and drives the drilling machine 1 to tilt. At the same time, the roller 9 will leave the ground, and the anchor 5111 and the anchor rod 101 will contact the tunnel floor. When the inclination angle of the drilling machine is adjusted, use a wrench to tighten the locking screw 8. At this time, the position of the thread sleeve 7 is fixed. Finally, start the drilling machine 1 to stabilize the drilling.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rock drilling device, comprising a drilling machine (1), the bottom of the drilling machine (1) being fixedly connected to a drilling machine base (3), characterized in that: A positioning shaft (4) is provided at one end of the drilling rig base (3); both ends of the positioning shaft (4) are rotatably connected to a pad rod (5) located below the drilling rig base (3); a free end of the pad rod (5) is rotatably connected to an adjusting rod (6); the other end of the drilling rig base (3) is rotatably connected to a threaded sleeve (7); the threaded sleeve (7) and the adjusting rod (6) are screwed together; and an anchor rod (101) is fixedly connected to the bottom of the pad rod (5).

2. The overburden drilling device according to claim 1, characterized in that: A grooved plate (51) is welded to one end of the cushion rod (5), and a connecting sleeve (511) sleeved on the outside of the positioning shaft (4) is welded to the free end of the grooved plate (51).

3. A rock drilling device according to claim 2, characterized in that: An anchor nail (5111) close to the bottom is welded to the outer peripheral wall of the connecting sleeve (511).

4. The overburden drilling device according to claim 1, characterized in that: A hinge seat (52) is welded to the free end of the pad rod (5), and the hinge seat (52) is hingedly connected to the transfer table at the bottom of the adjustment rod (6). A clearance notch (31) is provided at the other end of the drilling rig base (3), and positioning holes are provided on both sides of the clearance notch (31). A limiting shaft (71) rotatably connected to the positioning hole (311) is welded to the outer peripheral wall of the thread sleeve (7).

5. The overburden drilling device according to claim 4, characterized in that: A baffle (312) is welded to the mouth of the clearance notch (31), and two locking screws (8) respectively close to the upper and lower ends are screwed through the baffle (312), and one end of the locking screw (8) is opposite to the outer peripheral wall of the thread sleeve (7).

6. The overburden drilling device according to claim 1, characterized in that: Rollers (9) are arranged on both sides of the drilling rig base (3) near both ends. When the adjustment rod (6) and the drilling rig base (3) are parallel, after the drilling rig base (3) is placed on the ground, the rollers (9) are in contact with the ground and the adjustment rod (6) is in a suspended state.

7. The overburden drilling device according to claim 1, characterized in that: Support shafts (32) are welded to both sides of the drilling rig base (3) near both ends. The support shafts (32) are connected to rollers (9) via bearings. The outer circumference of the rollers (9) is provided with shock-absorbing sleeves (91).

Images