Drill rod stable clamping device for drilling equipment
By designing the lifting and clamping mechanism of the drill pipe stabilizing clamping device, the problem of unstable drilling pressure during drilling of the portable sampling drill rig was solved, the drill pipe replacement efficiency and drilling stability were improved, and drilling efficiency and sampling quality were ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN ENG POLYTECHNIC
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-10
AI Technical Summary
Portable sampling drilling rigs are easily affected by different geological factors during drilling, such as unstable drilling pressure, uneven stress on the drill bit and drill rod, borehole deviation or rig shaking, which affects drilling efficiency and sampling quality. In addition, the efficiency and quality of drilling, drilling and drill rod connection are not good.
A drill pipe stabilizing clamping device was designed, including a lifting mechanism and a clamping mechanism. The lifting mechanism uses a lifting ring and screws to lift and lower the drill pipe, while the clamping mechanism uses alloy sheets and welding rods to increase the stability of the drill pipe and prevent shaking and deflection.
It improved the efficiency and safety of drill pipe replacement, enhanced the stability of drill pipe during drilling, ensured drilling efficiency and sampling quality, and avoided safety hazards.
Smart Images

Figure CN224107223U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to drilling equipment technical field, concretely is a drilling equipment with drill rod steady clamping device. BACKGROUND
[0002] Portable sampling drilling machine is a kind of small portable sampling drilling equipment for shallow hole drilling, and the equipment is suitable for various shallow geological survey, replaces the method of traditional slot exploration, well exploration.The application range is very wide, including: regional geological mapping, geophysical exploration sampling, mine vein exploration, mineral taste evaluation, geotechnical engineering detection, water conservancy engineering survey, power line exploration, iron (public) line survey, oilfield survey, agricultural soil sampling, tunnel lining detection, various blasting drilling, environmental monitoring and geological disaster early warning prevention etc.Its main features are light weight, flexible operation, especially suitable for the area inconvenient for traffic, one person can complete drilling operation;
[0003] Patent CN220432868U discloses a drill rod clamping device, including guard plate assembly, clamping hook assembly, transmission rod assembly, oil cylinder assembly;Through oil cylinder drive transmission rod realizes the clamping or loosening of swing arm one and swing arm two;Drill rod clamping device is embraced and clamped by clamping hook to drill rod, so that drill rod is accurately aligned with iron mouth;When replacing drill rod, because the lower part of guard plate is slotted without L-shaped support, so drill rod is easy to replace;Guard plate assembly is closely connected with support through fixed hook and wedge, and is simple to disassemble and assemble;And upper and lower parts of guard plate are connected by bolt, do not need to replace entire when damaged, reduce maintenance cost.
[0004] At present, the traditional drill rod clamping device for drilling equipment is used in the process, because the portable sampling drilling machine is small in size and light in weight, is affected by different geological factors in the drilling process, is prone to unstable drilling pressure, uneven force of drill bit drill rod, causes the drilling hole to be deflected or the drilling machine to shake due to insufficient drilling stability, and further affects the drilling efficiency, sampling quality or produces safety hazard.In addition, because the portable shallow hole sampling drilling machine is not like medium-deep hole drilling machine to set up special rack and drill tower, so the efficiency and quality of tripping, drilling, connecting drill rod cannot be well guaranteed. UTILITY MODEL CONTENTS
[0005] The utility model discloses a purpose at providing a kind of drill pipe steady clamping device for drilling equipment, to solve the problem of the above background technology, due to the small size and light weight of portable sampling drill, it is influenced by different geological factors in the drilling process, prone to drilling pressure instability, uneven stress of drill pipe, lead to drilling deflection or drill due to drilling instability and produce shaking etc.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of drill pipe steady clamping device for drilling equipment, including base, the middle part of the base is provided with conical sleeve, the inner wall of the conical sleeve is provided with conical hole, the inner wall of the conical hole is detachably connected with left clamping block on one side, the upper end of the left clamping block is detachably connected with lifting mechanism, the left clamping block is movably connected with right clamping block on one side, the inner wall of the right clamping block is fixedly connected with clamping mechanism, the side of the right clamping block close to left clamping block is provided with pin hole, the inner wall of the pin hole is slidably connected with stud;
[0007] The lifting mechanism includes screw hole, the outer wall of the screw hole is embeddedly connected with the upper end of left clamping block, the inner wall of the screw hole is provided with screw, the upper end of the screw is provided with external thread, the upper end of the screw is fixedly connected with fixed block, the upper end of the fixed block is welded with lifting ring.
[0008] Preferably, the outer wall of the conical sleeve is fixedly connected with the middle inner wall of the base, and the outer wall of the conical hole is through-connected with the inner wall of the conical sleeve.
[0009] Preferably, the inner wall of the screw hole is threadedly connected with the outer wall of the screw, and the upper end of the screw is fixedly connected with the lower end of the fixed block.
[0010] Preferably, the inner diameter of the screw hole is the same as the outer diameter of the screw, and the screw is matched with the external thread.
[0011] Preferably, the clamping mechanism includes mounting groove, the outer wall of the mounting groove is embeddedly connected with the inner wall of the right clamping block, the inner wall of the mounting groove is provided with alloy sheet, and the two sides of the alloy sheet are provided with welding rod.
[0012] Preferably, the inner wall of the mounting groove is clamped with the outer wall of the alloy sheet, and the two sides of the alloy sheet are welded with one side of the welding rod.
[0013] Preferably, the number of the welding rod is two and is arranged between the two sides of the mounting groove and the right clamping block.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] 1、through the setting of lifting mechanism can make the device can easily lift or lower the drill rod, and then facilitate the staff to replace or adjust the drill rod, improve the work efficiency, in the process of use, when need to lift the drill rod, only need to connect the external hoisting equipment with the lifting ring, and then through the external hoisting equipment to lift the drill rod and its connected clamping device as a whole, can realize the lifting operation of drill rod, on the contrary, when need to drop the drill rod, only need to control the external hoisting equipment slowly down the drill rod and its connected clamping device, can realize the drop operation of drill rod, this setting not only simplifies the replacement process of drill rod, also improves the efficiency and safety of drill rod replacement;
[0016] 2、through the setting of clamping mechanism can make the device can be stable to the drill rod clamping, avoid in the process of drilling in the case of shaking or deflection, wherein, the alloy sheet has high hardness and wear resistance, can effectively increase the friction between the drill rod and the clamping device, prevent the drill rod from sliding or rotating in the process of drilling, at the same time, the setting of welding rod not only enhances the stability of clamping mechanism, also makes the connection between the clamping mechanism and the drill rod more closely, further improve the clamping effect, in the process of use, when need to clamp the drill rod, only need to put the drill rod into the conical hole, and adjust the position of left and right clamping block, make the clamping mechanism tightly hold the drill rod, then through the stud fixed left and right clamping block together, can realize the clamping operation of drill rod, this setting not only improves the stability of drilling, also guarantees the work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 it is the three-dimensional structure schematic view of the utility model;
[0018] Figure 2 it is the lifting mechanism schematic view of the utility model;
[0019] Figure 3 it is the clamping mechanism schematic view of the utility model;
[0020] Figure 4 it is the three-dimensional structure side view explosion schematic view of the utility model.
[0021] In the drawing: 1, base; 2, conical sleeve; 3, conical hole; 4, left clamping block; 5, lifting mechanism; 6, right clamping block; 7, clamping mechanism; 8, pin hole; 9, stud; 51, screw hole; 52, screw; 53, external thread; 54, fixed block; 55, lifting ring; 71, installation groove; 72, alloy sheet; 73, welding rod. DETAILED DESCRIPTION
[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0023] Please refer to Figure 1 and Figure 4 The utility model provides a kind of technical scheme: a kind of drill pipe steady clamping device for drilling equipment, including base 1, the middle part of base 1 is provided with conical sleeve 2, the inner wall of conical sleeve 2 is provided with conical hole 3, the inner wall of conical hole 3 is detachably connected with left clamping block 4 on one side, the upper end of left clamping block 4 is detachably connected with lifting mechanism 5, the side of left clamping block 4 is movably connected with right clamping block 6, the inner wall of right clamping block 6 is fixedly connected with clamping mechanism 7, the side of right clamping block 6 close to left clamping block 4 is provided with pin hole 8, the inner wall of pin hole 8 is slidably connected with stud 9, lifting mechanism 5 includes screw hole 51, the outer wall of screw hole 51 is embeddedly connected with the upper end of left clamping block 4, the inner wall of screw hole 51 is provided with screw 52, the upper end of screw 52 is provided with external thread 53, the upper end of screw 52 is fixedly connected with fixed block 54, the upper end of fixed block 54 is welded with lifting ring 55, the outer wall of conical sleeve 2 is fixedly connected with the middle inner wall of base 1, the outer wall of conical hole 3 is throughly connected with the inner wall of conical sleeve 2;
[0024] The lifting mechanism 5 is arranged, the user can pull up the lifting ring 55, the lifting ring 55 drives the screw 52 to move upwards through the fixed block 54, the screw 52 is in threaded connection with the inner wall of the screw hole 51 through the outer thread 53, so that the left clamping block 4 and the right clamping block 6 move up and down, the screw 52 drives the left clamping block 4 to move upwards through the screw hole 51, the left clamping block 4 drives the right clamping block 6 to move outward, at this time, the drill rod can be placed in the left clamping block 4 and the right clamping block 6, then the lifting ring 55 is loosened, the left clamping block 4 and the right clamping block 6 move downward to the middle under the gravity of itself, so that the drill rod is clamped, the stud 9 is arranged, the stud 9 slides on the inner wall of the pin hole 8, the stud 9 drives the left clamping block 4 to move rightwards, the left clamping block 4 drives the right clamping block 6 to move rightwards, at this time, the drill rod can be loosened, and the drill rod is convenient to take, the clamping mechanism 7 is arranged, the hardness of the alloy sheet 72 is high, the stability of the drill rod can be increased, the welding rod 73 can increase the connecting strength between the alloy sheet 72 and the mounting groove 71, and the alloy sheet 72 is prevented from falling off, through the lifting mechanism 5 and the clamping mechanism 7, the problems that, in the use process of the stable clamping device for the drill rod of the traditional drilling equipment, due to the small size and light weight of the portable sampling drilling machine, the drilling pressure is unstable, the drill bit and the drill rod are unevenly stressed, the drilling hole is deviated or the drilling machine shakes due to insufficient drilling stability, drilling efficiency, sampling quality or safety hazards are affected are solved.
[0025] Please refer to Figure 2 , in order to quickly lift the left clamping block 4 and the right clamping block 6 in the conical sleeve 2, the inner wall of the screw hole 51 is in threaded connection with the outer wall of the screw 52, the upper end of the screw 52 is fixedly connected with the lower end of the fixed block 54, the inner diameter of the screw hole 51 is same as the outer diameter of the screw 52, and the screw 52 is matched with the outer thread 53;
[0026] Next, in order to increase the stability and firmness of the drill pipe during clamping, the clamping mechanism 7 comprises a mounting groove 71, the outer wall of the mounting groove 71 is embeddedly connected with the inner wall of the right clamping block 6, the inner wall of the mounting groove 71 is provided with an alloy sheet 72, the alloy sheet 72 has high hardness and wear resistance, which can effectively increase the clamping force of the clamping mechanism 7 on the drill pipe, the two sides of the alloy sheet 72 are provided with welding rods 73, the number of the welding rods 73 is two and is arranged between the two sides of the mounting groove 71 and the right clamping block 6, the alloy sheet 72 is firmly welded in the mounting groove 71 through the welding rods 73, which further ensures the stability and durability of the clamping mechanism 7, the inner wall of the mounting groove 71 is clamped with the outer wall of the alloy sheet 72, this clamping mode facilitates the quick installation and disassembly of the alloy sheet 72 in the mounting groove 71, and meanwhile ensures the stability of the alloy sheet 72 during installation, the two sides of the alloy sheet 72 are welded with one side of the welding rod 73, and the connection strength between the alloy sheet 72 and the mounting groove 71 is further increased through welding, in use, the operator first inserts one end of the drill pipe into the conical hole 3, then clamps the drill pipe by the left clamping block 4 and the right clamping block 6, rotates the stud 9 to make the stud 9 slide in the pin hole 8 and push the right clamping block 6 to move, so as to clamp and fix the drill pipe by the left clamping block 4 and the right clamping block 6, at this time, the operator can hoist the lifting eye 55 by the external hoisting equipment, the lifting eye 55 drives the fixed block 54 to move, the fixed block 54 drives the screw 52 to rise, so as to make the left clamping block 4 drive the drill pipe to rise, which achieves the effect of stably clamping and conveniently hoisting the drill pipe, meanwhile, through the clamping mechanism 7 arranged, the operator can heat the welding rod 73 to weld and fix the alloy sheet 72 by the welding rod 73, which increases the connection strength between the alloy sheet 72 and the mounting groove 71, and meanwhile the alloy sheet 72 has high hardness, which increases the clamping effect on the drill pipe and prevents the drill pipe from shaking during drilling, the drill pipe stable clamping device of the drilling equipment can conveniently hoist the drill pipe through the lifting mechanism 5 arranged, which improves the efficiency and quality of tripping in and tripping out, and through the clamping mechanism 7 arranged, the drill pipe can be quickly clamped and fixed, which increases the stability of the drill pipe during drilling and prevents the drill pipe from shaking or deviating, thereby improving the drilling efficiency and sampling quality.
[0027] Please refer to Figure 3 , in order to quickly fix the drill pipe between the left clamping block 4 and the right clamping block 6, the clamping mechanism 7 comprises a mounting groove 71, the outer wall of the mounting groove 71 is embeddedly connected with the inner wall of the right clamping block 6, the inner wall of the mounting groove 71 is provided with an alloy sheet 72, the two sides of the alloy sheet 72 are provided with welding rods 73, the inner wall of the mounting groove 71 is clamped with the outer wall of the alloy sheet 72, the two sides of the alloy sheet 72 are welded with one side of the welding rod 73, and the number of the welding rod 73 is two and is arranged between the two sides of the mounting groove 71 and the right clamping block 6;
[0028] The base 1 is made of square tube, which is stable and light. The middle of the base 1 is provided with a tapered sleeve 2 matched with the left clamping block 4 and the right clamping block 6. The tapered sleeve 2 is welded with the base 1, and the inside of the tapered sleeve 2 is a conical hole 3. The left clamping block 4 and the right clamping block 6 are main components for clamping the drill rod. In order to ensure the precision of the outer wall of the left clamping block 4 and the right clamping block 6 matched with the conical hole 3 after assembly, the left clamping block 4 and the right clamping block 6 are cut into left and right parts after overall machining. The outer wall of the left clamping block 4 and the right clamping block 6 is matched with the inner conical hole 3 of the tapered sleeve 2 on the base 1. Three or more than three installation grooves 71 are arranged on the inner wall of the left clamping block 4 and the right clamping block 6, which are used for installing alloy sheets 72. The alloy sheets 72 are welded with the left clamping block 4 and the right clamping block 6 through welding rods 73. Two screw holes 51 are arranged on the upper end surface of the left clamping block 4 and the right clamping block 6, which are used for installing lifting rings 55. Two studs 9 and two pin holes 8 are arranged on the cut surface of the left clamping block 4 and the right clamping block 6, which are used for installing the studs 9. When in use, the stable clamping device is fixed in the hole, which plays a role of preventing the drill rod from shaking and deviating during drilling. When the drill rod needs to be clamped during drilling and tripping, the clamping block is pressed down, and the left clamping block 4 and the right clamping block 6 move longitudinally and transversely in the conical hole 3, and the drill rod can be clamped reliably under the gravity of the drill rod. The operation is convenient. When the drill rod needs to be loosened, the left clamping block 4 and the right clamping block 6 are lifted through the lifting ring 55, the fixed block 54 and the screw 52, and the drill rod can be loosened, so that the replacement of the drill rod and other operations during the whole drilling process are realized, the drilling efficiency and the drilling precision are ensured, the structure is simple, the performance is reliable, the weight is light, and it is especially suitable for shallow hole drilling of light sampling drill.
[0029] Working principle: first, through the setting of lifting mechanism 5, the user can pull up the lifting ring 55, the lifting ring 55 drives the screw 52 to move up through the fixed block 54, the screw 52 is connected with the inner wall of the screw hole 51 through the external thread 53, so as to realize the up-down movement of the left clamping block 4 and the right clamping block 6, the screw 52 drives the left clamping block 4 to move up through the screw hole 51, the left clamping block 4 drives the right clamping block 6 to move outwards, at this time, the drill rod can be placed in the left clamping block 4 and the right clamping block 6, then the lifting ring 55 is loosened, the left clamping block 4 and the right clamping block 6 move downward to the middle under the gravity of itself, so as to clamp the drill rod, through the setting of stud 9, the stud 9 slides in the inner wall of the pin hole 8, the stud 9 pushes the left clamping block 4 to move right, the left clamping block 4 drives the right clamping block 6 to move right, at this time, the drill rod can be loosened, which is convenient for taking the drill rod, through the setting of clamping mechanism 7, the hardness of alloy sheet 72 is high, which can increase the stability of the drill rod, the electrode 73 can increase the connecting strength between the alloy sheet 72 and the mounting groove 71, which prevents the alloy sheet 72 from falling off, through the setting of lifting mechanism 5 and clamping mechanism 7, the problem that the traditional drill rod stable clamping device for drilling equipment is unstable in use is solved, because the portable sampling drilling machine is small in size and light in weight, it is easy to appear unstable drilling pressure, uneven force on the drill bit and drill rod, drill hole deflection or drilling machine shaking due to insufficient drilling stability, which affects the drilling efficiency, sampling quality or causes safety hazards, then, in order to increase the stability and firmness of the drill rod in the clamping process, the clamping mechanism 7 comprises a mounting groove 71, the outer wall of the mounting groove 71 is embeddedly connected with the inner wall of the right clamping block 6, the inner wall of the mounting groove 71 is provided with an alloy sheet 72, the alloy sheet 72 has high hardness and wear resistance, which can effectively increase the clamping force of the clamping mechanism 7 on the drill rod, the two sides of the alloy sheet 72 are provided with electrodes 73, the number of the electrodes 73 is two and they are arranged between the two sides of the mounting groove 71 and the right clamping block 6, the alloy sheet 72 is firmly welded in the mounting groove 71 through the electrodes 73, which further ensures the stability and durability of the clamping mechanism 7, the inner wall of the mounting groove 71 is clamped with the outer wall of the alloy sheet 72, this clamping mode is convenient for the quick installation and disassembly of the alloy sheet 72 in the mounting groove 71, and ensures the stability of the alloy sheet 72 in the mounting process, the two sides of the alloy sheet 72 are welded with one side of the electrode 73, which further increases the connecting strength between the alloy sheet 72 and the mounting groove 71, in use, the operator first inserts one end of the drill rod into the conical hole 3, then clamps the drill rod through the left clamping block 4 and the right clamping block 6, rotates the stud 9 to make the stud 9 slide in the pin hole 8 and push the right clamping block 6 to move, so as to clamp and fix the drill rod, at this time, the operator can hoist the lifting ring 55 through the external hoisting equipment, the lifting ring 55 drives the fixed block 54 to move, the fixed block 54 drives the screw 52 to rise, so as to make the left clamping block 4 drive the drill rod to rise,The effect of firmly clamping and conveniently lifting the drill pipe is achieved, and the operator can heat the welding rod 73 through the clamping mechanism 7, so that the welding rod 73 welds and fixes the alloy sheet 72, thereby increasing the connection strength between the alloy sheet 72 and the mounting groove 71. Meanwhile, the alloy sheet 72 has high hardness, which increases the clamping effect of the drill pipe and prevents the drill pipe from shaking during drilling. The drill pipe firm clamping device for the drilling equipment can conveniently lift the drill pipe through the lifting mechanism 5, thereby improving the efficiency and quality of the lifting, lowering and connecting of the drill pipe. The drill pipe can be quickly clamped and fixed through the clamping mechanism 7, thereby increasing the stability of the drill pipe during drilling and preventing the drill pipe from shaking or deviating, and thus improving the drilling efficiency and sampling quality.
[0030] The base 1 is made of a square tube, which is stable and light. The middle of the base 1 is provided with a tapered sleeve 2 matched with the left clamping block 4 and the right clamping block 6. The tapered sleeve 2 is welded with the base 1, and the inside of the tapered sleeve 2 is a conical hole 3. The left clamping block 4 and the right clamping block 6 are main components for clamping and fixing the drill pipe. In order to ensure the precision of the outer wall of the left clamping block 4 and the right clamping block 6 after assembly with the conical hole 3, the left clamping block 4 and the right clamping block 6 are cut into left and right parts after overall machining. The outer wall of the left clamping block 4 and the right clamping block 6 is matched with the inner conical hole 3 of the tapered sleeve 2 on the base 1. Three or more than three installation grooves 71 are arranged on the inner wall of the left clamping block 4 and the right clamping block 6 for installing alloy sheets 72. The alloy sheets 72 are welded with the left clamping block 4 and the right clamping block 6 through welding rods 73. Two screw holes 51 are arranged on the upper end surface of the left clamping block 4 and the right clamping block 6 for installing lifting rings 55. Two threaded studs 9 and two pin holes 8 are arranged on the cut surface of the left clamping block 4 and the right clamping block 6 for installing the threaded studs 9. In use, the firm clamping device is fixed in the hole, which plays a role of preventing the drill pipe from shaking and deviating during drilling. When the drill pipe needs to be clamped during lifting and lowering, the clamping block is pressed down, the left clamping block 4 and the right clamping block 6 move longitudinally and transversely in the conical hole 3, and the drill pipe can be reliably clamped under the action of the gravity of the drill pipe. The operation is convenient. When the drill pipe needs to be loosened, the left clamping block 4 and the right clamping block 6 are lifted through the lifting ring 55, the fixing block 54 and the screw 52, and the drill pipe can be loosened, so that the replacement of the drill pipe and other operations during the whole drilling process are realized, the drilling efficiency and the drilling precision are ensured, the structure is simple and reliable, the weight is light, and it is especially suitable for shallow hole drilling of light sampling drilling machines. The above is the working process of the whole device, and the contents not described in detail in the specification all belong to the existing technology known to the person skilled in the art.
[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drill pipe stabilising clamp for a drilling apparatus, comprising a base (1), characterised in that: The middle part of the base (1) is provided with a conical sleeve (2), the inner wall of the conical sleeve (2) is provided with a conical hole (3), one side of the inner wall of the conical hole (3) is detachably connected with a left clamping block (4), the upper end of the left clamping block (4) is detachably connected with a lifting mechanism (5), one side of the left clamping block (4) is movably connected with a right clamping block (6), the inner wall of the right clamping block (6) is fixedly connected with a clamping mechanism (7), one side of the right clamping block (6) close to the left clamping block (4) is provided with a pin hole (8), and the inner wall of the pin hole (8) is slidably connected with a stud (9). The lifting mechanism (5) comprises a threaded hole (51), the outer wall of the threaded hole (51) is embeddedly connected with the upper end of the left clamping block (4), the inner wall of the threaded hole (51) is provided with a screw (52), the upper end of the screw (52) is provided with an external thread (53), the upper end of the screw (52) is fixedly connected with a fixed block (54), and the upper end of the fixed block (54) is welded with a lifting ring (55).
2. A drill pipe stabilising clamp for a drilling apparatus as claimed in claim 1, characterised in that: The outer wall of the conical sleeve (2) is fixedly connected with the middle inner wall of the base (1), and the outer wall of the conical hole (3) is throughly connected with the inner wall of the conical sleeve (2).
3. A drill pipe stabilising clamp for a drilling apparatus as claimed in claim 1, characterised in that: The inner wall of the threaded hole (51) is threadedly connected with the outer wall of the screw (52), and the upper end of the screw (52) is fixedly connected with the lower end of the fixed block (54).
4. A drill pipe stabilising clamp for a drilling apparatus as claimed in claim 3, characterised in that: The inner diameter of the threaded hole (51) is the same as the outer diameter of the screw (52), and the screw (52) is matched with the external thread (53).
5. A drill pipe stabilising clamp for a drilling apparatus as claimed in claim 1, characterised in that: The clamping mechanism (7) comprises a mounting groove (71), the outer wall of the mounting groove (71) is embeddedly connected with the inner wall of the right clamping block (6), the inner wall of the mounting groove (71) is provided with an alloy sheet (72), and the two sides of the alloy sheet (72) are provided with welding rods (73).
6. A drill pipe stabilising clamp for a drilling apparatus as claimed in claim 5, characterised in that: The inner wall of the mounting groove (71) is clamped with the outer wall of the alloy sheet (72), and the two sides of the alloy sheet (72) are welded with one side of the welding rod (73).
7. A drill pipe stabilising clamp for a drilling apparatus as claimed in claim 5, characterised in that: The number of the welding rods (73) is two, which are arranged between the two sides of the mounting groove (71) and the right clamping block (6).