Anti-collapse equipment for rotary drilling

Abstract

The utility model discloses anti-collapse equipment for rotary drilling, and relates to the technical field of drilling equipment. The device comprises a movable seat, a fixed frame, an electric telescopic rod and a fixed column, and the linkage mechanism is used for avoiding the situation that the inner wall of the hole groove collapses, the linkage mechanism comprises a drill bit arranged at the bottom end of the fixing column, and an extrusion plate is arranged on the outer wall of the fixing column. According to the utility model, the linkage mechanism is arranged; through rotation of the drill bit, the ground can be drilled, through work of the same power source, the extrusion plate can be driven to reciprocate in the horizontal direction, after the extrusion plate horizontally moves and makes contact with the inner wall of a drilled hole groove, the inner wall of the hole groove can be extruded, the inner wall of the hole groove is extruded in a reciprocating mode, and the inner wall of the hole groove can be compacted; the situation that the hole groove collapses when the drill bit drills holes is avoided, normal work of the drill bit is further guaranteed, and meanwhile the integrity of the hole groove formed by drilling is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to an anti-collapse device for rotary drilling. Background Art

[0002] Rotary drilling is a construction technology suitable for hole-making operations in building foundation projects. It is widely used in foundation construction projects such as municipal construction, highway bridges, and high-rise buildings. It is matched with different drilling tools and is suitable for dry (short spiral) or wet (rotary bucket) and rock formation (core drill) hole-making operations. The drilling tool has a certain rigidity and does not move or shake during drilling or other operations. The installation of the drilling tool should comply with the manufacturer's standards. During construction, various specifications of drill bits such as short spiral drill bits, rotary buckets, core drill bits, and core rotary drill bits can be used.

[0003] When the current rotary drilling equipment is working, a hole is drilled into the ground through a drill bit, and then mud is injected into the hole groove after the hole is drilled. When the drill bit is drilling, the drill bit rotates to loosen the soil in the hole, and the drill bit vibrates when working. The vibration force is transmitted to the loosened soil, which causes the soil to shake and collapse. The collapsed soil accumulates on the top of the drill bit and buries the drill bit under the hole groove. On the one hand, it affects the normal operation of the drill bit. On the other hand, the collapsed soil accumulates inside the hole groove, affecting the integrity of the hole groove after drilling, and causing the subsequent mud injection amount to be inaccurate. For this purpose, an anti-collapse device for rotary drilling is provided. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-collapse device for rotary drilling to solve the problem in the above-mentioned background technology that the drill bit generates vibration during operation and transmits the vibration force to the loose soil, thereby causing the soil to collapse. The collapsed hole groove causes the drill bit to be unable to work normally, and the collapsed soil affects the integrity of the hole groove.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-collapse device for rotary drilling, comprising a movable seat, a fixed frame is fixed to the top of the movable seat by bolts, an electric telescopic rod is fixed to the middle area of ​​the bottom end of the fixed frame by bolts, and the output end of the electric telescopic rod is fixedly connected to a fixed column; a linkage mechanism, the linkage mechanism is arranged on the outer wall of the fixed column, and the linkage mechanism extends to the inside of the fixed column, the linkage mechanism is used for rotary drilling, and the linkage mechanism is used to press the inner wall of the hole groove after drilling to avoid collapse of the inner wall of the hole groove, the linkage mechanism includes a drill bit arranged at the bottom end of the fixed column, and the outer wall of the fixed column is provided with an extrusion plate.

[0006] Preferably, the linkage mechanism includes a driving motor arranged inside the fixed column, the bottom end of the driving motor is connected to a rotating rod through a coupling, the bottom end of the rotating rod passes through the bottom of the fixed column, and the bottom end of the rotating rod is fixedly connected to the drill bit, and the rotating rod is rotatably connected to the inner wall of the fixed column through a bearing.

[0007] Preferably, the outer wall of the rotating rod is connected to a fixing rod via a bearing, and the bottom end of the driving motor is fixedly connected to the top end of the fixing rod via a bolt.

[0008] Preferably, a first bevel gear is welded to the outer wall of the rotating rod, the first bevel gear is located below the fixed rod, second bevel gears are meshed at both ends of the first bevel gear, and a rotating column is welded to one end of the second bevel gear.

[0009] Preferably, a sliding block is sleeved on one end of the rotating column, one end of the sliding block penetrates to the outside of the fixed column, and one end of the sliding block is fixedly connected to the extrusion plate by a bolt.

[0010] Preferably, the outer wall of the rotating column is connected to a support block via a bearing, and the top end of the support block is fixedly connected to the bottom end of the fixing rod via a bolt.

[0011] Preferably, the outer wall of the rotating column is provided with two spiral grooves in opposite directions, and the inner wall of the sliding block is provided with a crescent pin which is sleeved with the spiral grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By setting a linkage mechanism, the drill bit is rotated to drill a hole in the ground, and the same power source is used to drive the extrusion plate to move back and forth in the horizontal direction. After the extrusion plate moves horizontally and contacts the inner wall of the hole groove of the drilled hole, the inner wall of the hole groove can be squeezed, and the inner wall of the hole groove can be compacted by reciprocatingly squeezing the inner wall of the hole groove to avoid the hole groove collapse when the drill bit is drilling, further ensuring that the drill bit can work normally, and also ensuring the integrity of the hole groove formed by the drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the extruded plate of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the fixed column of the utility model;

[0017] Figure 4 For the utility model Figure 3 A in the figure is an enlarged structural diagram.

[0018] In the figure: 1. moving seat; 2. fixed frame; 3. electric telescopic rod; 4. linkage mechanism; 401. driving motor; 4011. fixed rod; 402. rotating rod; 403. drill bit; 404. first bevel gear; 405. second bevel gear; 406. rotating column; 4061. supporting block; 407. sliding block; 408. extrusion plate; 5. fixed column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The following is combined with Figure 1-Figure 4 The utility model is described in further detail.

[0021] See also Figure 1-Figure 4 The utility model provides an anti-collapse device for rotary drilling. The anti-collapse device for rotary drilling comprises a movable seat 1, a fixed frame 2 is fixed to the top of the movable seat 1 by bolts, an electric telescopic rod 3 is fixed to the middle area of ​​the bottom end of the fixed frame 2 by bolts, the fixed frame 2 is used to support the electric telescopic rod 3, the output end of the electric telescopic rod 3 is fixedly connected to a fixed column 5, and the output end of the electric telescopic rod 3 moves downward to push the fixed column 5 to move; a linkage mechanism 4, the linkage mechanism 4 is arranged on the outer wall of the fixed column 5, and the linkage mechanism 4 extends to the inside of the fixed column 5, the linkage mechanism 4 is used for rotary drilling, and the linkage mechanism 4 is used for pressing the inner wall of the hole groove after drilling to avoid the collapse of the inner wall of the hole groove, the linkage mechanism 4 comprises a drill bit 403 arranged at the bottom end of the fixed column 5, the outer wall of the fixed column 5 is provided with an extrusion plate 408, the drill bit 403 is used for drilling, and the extrusion plate 408 is used for pressing the inner wall of the hole groove;

[0022] The linkage mechanism 4 includes a driving motor 401 arranged inside the fixed column 5, the bottom end of the driving motor 401 is connected to a rotating rod 402 through a coupling, the bottom end of the rotating rod 402 passes through the bottom of the fixed column 5, and the bottom end of the rotating rod 402 is fixedly connected to the drill bit 403, the rotating rod 402 is rotatably connected to the inner wall of the fixed column 5 through a bearing, the output end of the driving motor 401 rotates to drive the rotating rod 402 to rotate, and the rotating rod 402 rotates to drive the drill bit 403 to rotate, thereby drilling the ground; the outer wall of the rotating rod 402 is connected to a fixed rod 4011 through a bearing, and the bottom end of the driving motor 401 is screwed to the bottom end of the driving motor 401. The bolt is fixedly connected to the top of the fixed rod 4011, and the fixed rod 4011 is used to support the driving motor 401 and the rotating rod 402, and the fixed rod 4011 is used to ensure the stability of the rotating rod 402 during the transmission of the rotating force; the outer wall of the rotating rod 402 is welded with a first bevel gear 404, and the first bevel gear 404 is located below the fixed rod 4011. The two ends of the first bevel gear 404 are meshed with second bevel gears 405, and one end of the second bevel gear 405 is welded with a rotating column 406. The rotation of the first bevel gear 404 can drive the two second bevel gears 405 to rotate, and the rotation of the second bevel gear 405 can drive the rotating column 406 to rotate

[0023] One end of the rotating column 406 is sleeved with a sliding block 407, one end of the sliding block 407 passes through the outside of the fixed column 5, and one end of the sliding block 407 is fixedly connected to the extrusion plate 408 by a bolt. The rotation of the rotating column 406 can drive the sliding block 407 to move horizontally, and the horizontal movement of the sliding block 407 can drive the extrusion plate 408 to move, and the movement of the extrusion plate 408 can squeeze the inner wall of the hole groove; the outer wall of the rotating column 406 is connected with a support block 4061 through a bearing, and the top of the support block 4061 is fixedly connected to the bottom end of the fixed rod 4011 by a bolt, and the support block 4061 is used to support the rotating column 406, and the support block 4061 is used to ensure the stability of the rotating column 406 during the transmission of the rotating force; the outer wall of the rotating column 406 is provided with two spiral grooves in opposite directions, and the inner wall of the sliding block 407 is provided with a crescent pin sleeved with the spiral groove, and the rotation of the rotating column 406 can drive the two spiral grooves to rotate, and the rotation of the spiral groove can drive the sliding block 407 to reciprocate in the horizontal direction.

[0024] Working principle: when in use, first move the mobile seat 1 as a whole to the drilling location, then control the electric telescopic rod 3 and the driving motor 401 to work, the output end of the driving motor 401 rotates to drive the rotating rod 402 to rotate, the rotating rod 402 rotates to drive the drill bit 403 to rotate, the drill bit 403 rotates to drill the ground, and the output end of the electric telescopic rod 3 moves downward to drive the fixed column 5 to move, the fixed column 5 moves to drive the drill bit 403 to move, and then the step of drilling the ground is performed;

[0025] Secondly, the rotation of the rotating rod 402 drives the first bevel gear 404 to rotate at the same time, the rotation of the first bevel gear 404 drives the second bevel gear 405 to rotate, the rotation of the second bevel gear 405 drives the rotating column 406 to rotate, the rotation of the rotating column 406 drives the sliding block 407 to move, the movement of the sliding block 407 drives the extrusion plate 408 to move, the extrusion plate 408 moves and contacts the inner wall of the hole groove of the drilled hole, and the extrusion plate 408 squeezes the inner wall of the hole groove, when the sliding block 407 moves to one end of the outer wall of the rotating column 406, the sliding block 407 resets and moves under the action of the internal crescent pin and the spiral groove on the outer wall of the rotating column 406, and so on;

[0026] Finally, by rotating the drill bit 403, a hole can be drilled on the ground, and by working through the same power source, the extrusion plate 408 can be driven to reciprocate in the horizontal direction. After the extrusion plate 408 moves horizontally and contacts the inner wall of the hole groove of the drilled hole, the inner wall of the hole groove can be squeezed, and the inner wall of the hole groove can be compacted by reciprocatingly squeezing the inner wall of the hole groove, thereby avoiding the hole groove collapse when the drill bit 403 is drilling, further ensuring that the drill bit 403 can work normally, and at the same time ensuring the integrity of the hole groove formed by the drilling.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An anti-collapse device for rotary drilling, characterized in that: include: A movable seat (1), wherein a fixing frame (2) is fixed to the top of the movable seat (1) by means of bolts, an electric telescopic rod (3) is fixed to the middle area of ​​the bottom of the fixing frame (2) by means of bolts, and an output end of the electric telescopic rod (3) is fixedly connected to a fixing column (5); A linkage mechanism (4) is arranged on the outer wall of the fixed column (5), and the linkage mechanism (4) extends to the inside of the fixed column (5) to prevent the inner wall of the hole groove from collapsing. The linkage mechanism (4) includes a drill bit (403) arranged at the bottom end of the fixed column (5), and the outer wall of the fixed column (5) is provided with an extrusion plate (408).

2. The anti-collapse device for rotary drilling according to claim 1, characterized in that: The linkage mechanism (4) comprises a driving motor (401) arranged inside the fixed column (5); the bottom end of the driving motor (401) is connected to a rotating rod (402) via a coupling; the bottom end of the rotating rod (402) passes through the bottom of the fixed column (5); the bottom end of the rotating rod (402) is fixedly connected to a drill bit (403); and the rotating rod (402) is rotatably connected to the inner wall of the fixed column (5) via a bearing.

3. The anti-collapse device for rotary drilling according to claim 2, characterized in that: The outer wall of the rotating rod (402) is connected to a fixing rod (4011) via a bearing, and the bottom end of the driving motor (401) is fixedly connected to the top end of the fixing rod (4011) via a bolt.

4. The anti-collapse device for rotary drilling according to claim 3, characterized in that: A first bevel gear (404) is welded to the outer wall of the rotating rod (402), the first bevel gear (404) is located below the fixed rod (4011), second bevel gears (405) are meshed at both ends of the first bevel gear (404), and a rotating column (406) is welded to one end of the second bevel gear (405).

5. The anti-collapse device for rotary drilling according to claim 4, characterized in that: One end of the rotating column (406) is sleeved with a sliding block (407), one end of the sliding block (407) penetrates to the outside of the fixed column (5), and one end of the sliding block (407) is fixedly connected to the extrusion plate (408) by bolts.

6. The anti-collapse device for rotary drilling according to claim 5, characterized in that: The outer wall of the rotating column (406) is connected to a support block (4061) via a bearing, and the top end of the support block (4061) is fixedly connected to the bottom end of the fixing rod (4011) via a bolt.

7. The anti-collapse device for rotary drilling according to claim 6, characterized in that: The outer wall of the rotating column (406) is provided with two spiral grooves in opposite directions, and the inner wall of the sliding block (407) is provided with a crescent pin which is sleeved with the spiral grooves.

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