Drill rod guide mechanism of exploration drilling machine

Abstract

The utility model particularly relates to a drill rod guide mechanism of a reconnaissance drilling machine, which comprises an underframe, a guide component and an angle adjusting part, and the underframe is U-shaped and is formed by welding hollow square tubes; the guide assemblies are symmetrically arranged and arranged on the bottom frame through supporting plates, the distance between the guide parts is adjusted through the distance adjusting parts, the distance adjusting parts are arranged in the bottom frame, and the guide assemblies are used for clamping a drill rod. The angle adjusting part is arranged on one side of the guiding part, the worm drives the worm gear to rotate, the worm gear drives the angle adjusting part to rotate around the shaft, and the pitching angle of the guiding part is synchronously adjusted; the angle of the guide assembly is adjusted through the worm gear and the worm, so that the guide assembly can be adjusted to the vertical direction when the guide assembly is located on the ground with the gradient, the guide requirement of the exploration drilling machine for drilling a vertical well on a slope is met, and by arranging the guide assembly, the distance between the guide rollers is adjusted through the connecting rod, and the guide efficiency is improved. Therefore, the guide requirements of drill rods of different sizes are met, operation is easy, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of exploration drilling rig technology, specifically to a drill rod guiding mechanism for exploration drilling rigs. Background Technology

[0002] Drilling is a common systematic engineering project in exploration operations. It is a joint operation involving multiple disciplines and trades using various equipment, tools, and materials. At the same time, it is a continuous operation with multiple procedures closely linked and multiple links interlocking. The entire construction process is quite complex. During the drilling process, a guiding device is needed to guide the drill pipe to prevent problems such as tilting or positional deviation of the exploration drilling rig during the drilling process.

[0003] A search revealed that Chinese patent CN110469264B discloses a drill pipe guiding device, comprising two support plates placed opposite each other and parallel to each other. Connecting sleeves are respectively placed on the bottom of both sides of the support plates, and the connecting sleeves on the two support plates correspond one-to-one. One end of a lead screw is rotatably placed in the connecting sleeve on one side of one support plate, and the other end of the lead screw passes through the corresponding connecting sleeve on the other side of the support plate. The outer surface of one end of the lead screw is smooth. The lead screw and the connecting sleeve on the other support plate are connected by threads. A rocker wheel is placed on the other end of the lead screw. One end of a slide rail is fixedly placed in the connecting sleeve on the other side of one support plate. This device is suitable for drill pipes of different sizes and can guide the drill pipe to reduce the amount of sway during drilling. The adjustment method is simple and convenient, and the operation is easy.

[0004] While the above solution enables the drill pipe guiding device to be applicable to drill pipes of different sizes to some extent, it still has the following shortcomings:

[0005] In the above scheme, the guiding device is always set perpendicular to the lead screw adjusting device, while the lead screw adjusting device is always set parallel to the ground. When the guiding device is located on a sloping ground, the guiding device forms an angle with the vertical direction. According to the congruence theorem, the angle between the guiding device and the vertical direction is equal to the slope angle of the ground. Therefore, the above scheme cannot meet the requirements when drilling a vertical well on a sloping ground. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a drill rod guiding mechanism for exploration drilling rigs.

[0007] The technical solution of this utility model is as follows:

[0008] A drill rod guiding mechanism for an exploration drilling rig, comprising:

[0009] The base frame is U-shaped and is welded from hollow square tubing.

[0010] The guide components are symmetrically arranged and mounted on the base frame via a support plate. The distance between the guide components is adjusted by a distance adjustment part located inside the base frame. The guide components are used to clamp the drill pipe.

[0011] An angle adjustment unit is located on one side of the guide assembly. It drives a worm gear to rotate, and the worm gear drives the angle adjustment unit to rotate around an axis, thereby synchronously adjusting the pitch angle of the guide assembly.

[0012] Furthermore, the base frame includes a crossbeam, a first cantilever, and a second cantilever. The first cantilever and one end of the second cantilever are welded to both ends of the crossbeam, respectively. The other end of the first cantilever is provided with a first pipe plug, and the other end of the second cantilever is provided with a second pipe plug. The first pipe plug and the second pipe plug are interference-fitted with the inner wall of the base frame.

[0013] Furthermore, the support plate includes a fixed support plate and a movable support plate. The fixed support plate is fixedly disposed on one side of the crossbeam, between the first cantilever and the second cantilever. The bottom of both sides of the movable support plate is fixedly provided with a first slider and a second slider. The first slider is sleeved on the first cantilever, and the second slider is sleeved on the second cantilever. A first slider guide groove is opened on the side of the first cantilever, and a second slider guide groove is opened on the side of the second cantilever. A first guide part is provided inside the first slider, and a second guide part is provided inside the second slider. The first guide part cooperates with the first slider guide groove, and the second guide part cooperates with the second slider guide groove. The first slider and the second slider drive the movable support plate to translate along the first cantilever, thereby changing the distance between the fixed support plate and the movable support plate.

[0014] Furthermore, the distance adjustment unit includes a lead screw and a first handwheel. The lead screw is located inside the first cantilever, and one end of the lead screw has a lead screw fixing seat. The lead screw fixing seat is interference-fitted with the inner wall of the first cantilever and is located inside the first cantilever near the crossbeam. The lead screw fixing seat has a lead screw rotation hole in the middle. The lead screw includes a first rotating part, a helical part, a second rotating part, and a handwheel mounting part. The first rotating part is located in the lead screw rotation hole, and the two ends of the helical part are the first rotating part and the second rotating part, respectively. A lead screw through hole is provided on the first pipe plug, and the second rotating part is located in the lead screw through hole. The handwheel mounting part is located at the other end of the second rotating part. The cross-section of the handwheel mounting part is square. The first handwheel has a square hole in the middle, and the handwheel mounting part is located in the square hole. The first slider has a threaded hole in the middle, and the threaded hole is fitted onto the helical part. The rotation of the handwheel drives the lead screw to rotate, thereby driving the first slider to translate along the lead screw.

[0015] Furthermore, the second slider is provided with a pulley inside, and the pulley is fixedly connected to the second slider by screws. The lower end of the pulley abuts against the inside of the second cantilever, and the upper end of the pulley abuts against the second guide part. The pulley moves synchronously with the first slider inside the second cantilever.

[0016] Furthermore, the guiding assembly includes a guide plate, a hydraulic rod, a connecting rod, and a guide roller. The guide plate is provided with a connecting rod mounting lug and a hydraulic rod mounting lug. One end of the connecting rod is connected to the connecting rod mounting lug via a rotating shaft, and the other end is connected to the guide roller via a rotating shaft. The connecting rod and the guide roller are symmetrically distributed in a V-shape. One end of the hydraulic rod is connected to the hydraulic rod mounting lug via a rotating shaft, and the other end is connected to one side of the middle of the connecting rod via a rotating shaft. The connecting rod rotates around the connecting rod mounting lug, thereby changing the distance between the guide rollers. The guide roller rotates around the rotating shaft to guide the drill rod. The hydraulic rod is used to support the connecting rod. The guide plates are arranged facing each other and are respectively mounted on a movable support plate and a fixed support plate.

[0017] Furthermore, the guide plate has a guide plate mounting shaft on one bottom side and a worm gear engagement key on the other bottom side. The movable support plate and the fixed support plate are respectively provided with guide plate mounting holes, which are symmetrically distributed. One side of the guide plate mounting hole engages with the guide plate mounting shaft, and the other side is connected to the worm gear engagement key. The guide plate rotates around the guide plate mounting shaft on the movable support plate and the fixed support plate.

[0018] Furthermore, the angle adjustment unit includes a worm gear, a worm, a splined shaft, a support column, and a second handwheel. One end of the splined shaft has a tail plate, and the other end passes through the support column and connects to the second handwheel. The tail plate has a splined shaft fixing part, and the splined shaft rotates within the splined shaft fixing part. The worm has a spline hole in the middle, and the worm is sleeved on the splined shaft through the spline hole. The second handwheel drives the splined shaft to rotate the worm. The worm meshes with the worm gear, driving the worm gear to rotate. The worm gear has a worm gear mating hole in the middle, and the worm gear mating hole is connected to the worm gear mating key so that the worm gear drives the movable support plate and the fixed support plate to rotate. The lower end of the support column has a support column fixing part, which is located inside the second cantilever. The side of the support column fixing part abuts against the second pipe plug.

[0019] Furthermore, a worm gear fixing block is fixedly provided on the side of the movable support plate and the fixed support plate. The worm gear fixing block is provided with a worm gear mounting hole, and the worm gear is disposed in the worm gear mounting hole. When the movable support plate moves, it drives the worm wheel and the worm gear connected to the movable support plate to move synchronously along the spline shaft.

[0020] Furthermore, the tail plate is fixed to the other side of the crossbeam, and a push handle is provided on the tail plate. A caster wheel is provided on the lower end face of the base frame. The push handle and the caster wheel cooperate to move the overall mechanism. A ground nail fixing plate is provided on the side of the movable support plate near the second handwheel and on the side of the tail plate near the push handle. The ground nail fixing plate is provided with ground nail mounting holes, and ground nails are provided in the ground nail mounting holes. The ground nails are used to fix the overall mechanism to the ground and to fix the position of the movable support plate, thereby fixing the distance between the movable support plate and the fixed support plate.

[0021] The beneficial effects achieved by this utility model are as follows:

[0022] 1. This utility model, by setting an angle adjustment part, adjusts the angle of the guide component through a worm gear, so that when the guide component is on a sloping ground, it can be adjusted to the vertical direction, thus meeting the guidance requirements of the exploration drilling rig when drilling vertical wells on a slope.

[0023] 2. This utility model sets up guide rollers and connecting rods, and adjusts the distance between the guide rollers by connecting rods, thereby meeting the guiding requirements of drill pipes of different sizes. Furthermore, since the guide rollers rotate with the drill pipe, the wear of the guide rollers is reduced, and the amount of swaying of the drill pipe during the drilling process is also reduced. It is simple to operate and convenient to use.

[0024] 3. This utility model uses a pulley and a lead screw to work together. The pulley converts the sliding friction of the second slider into rolling friction, thereby reducing the friction of the second slider. While adjusting the movable support plate through the lead screw, it prevents the second slider from getting stuck due to friction and prevents the movable support plate from tilting during movement. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a utility model Figure 1 A schematic diagram of the overall structure from another perspective.

[0027] Figure 3 This is a structural schematic diagram of the tail plate and base frame of this utility model.

[0028] Figure 4 This is a utility model Figure 3 A structural diagram from another perspective.

[0029] Figure 5 This is a structural schematic diagram of the base frame of this utility model.

[0030] Figure 6 This is an assembly diagram of the lead screw of this utility model.

[0031] Figure 7 This is an exploded view of the lead screw of this utility model.

[0032] Figure 8 This is a structural schematic diagram of the slider and support plate of this utility model.

[0033] Figure 9 This is a schematic diagram of the assembly structure of the guide plate and worm gear of this utility model.

[0034] Figure 10 This is a schematic diagram of the guiding structure of this utility model.

[0035] Figure 11 This is an assembly diagram of the worm gear and worm of this utility model.

[0036] Figure 12 This is a schematic diagram of the overall structure of this utility model in its working state on a slope.

[0037] In the diagram, 1. Push handle; 2. Tailplate; 201. Splined shaft fixing part; 3. Base frame; 301. Crossbeam; 302. First cantilever; 303. Second cantilever; 304. First slider guide groove; 305. Second slider guide groove; 4. Universal wheel; 5. Lead screw; 501. First rotating part; 502. Helical part; 503. Second rotating part; 504. Handwheel mounting part; 6. Fixed support plate; 7. Movable support plate; 701. Guide plate mounting hole; 8. First slider; 801. First guide part; 802. Threaded hole; 9. First pipe plug; 901. Lead screw through hole; 10. First handwheel; 1001. Square hole; 11. Ground nail; 12. Second pipe plug; 13. Second handwheel; 14. 15. Splined shaft; 16. Support column; 17. Support column fixing part; 18. Worm gear; 19. Worm gear mating hole; 20. Guide plate; 21. Guide plate mounting shaft; 22. Arc part; 23. Worm gear mating key; 24. Connecting rod mounting ear; 25. Hydraulic rod mounting ear; 26. Guide roller; 27. Connecting rod; 28. Rotating shaft; 29. ​​Hydraulic rod; 20. Worm; 21. Splined hole; 22. Second slider; 23. Second guide part; 24. Screw; 25. Ground nail fixing plate; 26. Ground nail mounting hole; 27. Lead screw fixing seat; 28. Lead screw rotation hole; 29. ​​Pulley; 20. Worm fixing block; 21. Worm mounting hole. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] In the description of this utility model, it should be noted that the terms "upper end," "lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Example 1

[0042] Please see Figures 1 to 12 This utility model provides a technical solution:

[0043] A drill rod guiding mechanism for an exploration drilling rig, comprising:

[0044] The base frame 3 is U-shaped and is welded from hollow square tubes.

[0045] The guide components are symmetrically arranged and mounted on the base frame 3 via a support plate. The distance between the guide components is adjusted by a distance adjustment part located inside the base frame 3. The guide components are used to clamp the drill rod.

[0046] An angle adjustment unit is located on one side of the guide assembly. The worm gear 22 drives the worm wheel 16 to rotate, and the worm wheel 16 drives the angle adjustment unit to rotate around the axis, thereby synchronously adjusting the pitch angle of the guide assembly.

[0047] Specifically, such as Figure 3 , Figure 4 and Figure 5 As shown, the base frame 3 includes a crossbeam 301, a first cantilever 302, and a second cantilever 303. The first cantilever 302 and the second cantilever 303 are welded to both ends of the crossbeam 301, respectively. The other end of the first cantilever 302 is provided with a first pipe plug 9, and the other end of the second cantilever 303 is provided with a second pipe plug 12. The first pipe plug 9 and the second pipe plug 12 are interference-fitted with the inner wall of the base frame 3.

[0048] Specifically, the base frame 3 is a galvanized steel pipe with a square cross-section and a wall thickness of not less than 10mm.

[0049] Specifically, the first tube plug 9 and the second tube plug 12 are plastic parts, preferably ABS plastic, which serve to prevent sand and dust from entering the tubes of the first cantilever 302 and the second cantilever 303, and at the same time limit the stroke of the movable support plate 7.

[0050] Specifically, such as Figure 1 and Figure 2 As shown, the support plate includes a fixed support plate 6 and a movable support plate 7. The fixed support plate 6 is fixedly disposed on one side of the crossbeam 301, between the first cantilever 302 and the second cantilever 303. The bottom of both sides of the movable support plate 7 is fixedly provided with a first slider 8 and a second slider 23. The first slider 8 is sleeved on the first cantilever 302, and the second slider 23 is sleeved on the second cantilever 303. The first cantilever 302 has a first slider guide groove 304 on its side, and the second cantilever 303 has a second slider guide groove 305 on its side. The first slider 8 has a first guide part 801 inside, and the second slider 23 has a second guide part 2301 inside. The first guide part 801 cooperates with the first slider guide groove 304, and the second guide part 2301 cooperates with the second slider guide groove 305. The first slider 8 and the second slider 23 drive the movable support plate 7 to translate along the first cantilever 302, thereby changing the distance between the fixed support plate 6 and the movable support plate 7.

[0051] Specifically, there are 3 first slider guide grooves 304 and 1 second slider guide groove 305.

[0052] Specifically, such as Figure 6 and Figure 7As shown, the distance adjustment part includes a lead screw 5 and a first handwheel 10. The lead screw 5 is disposed inside the first cantilever 302. One end of the lead screw 5 is provided with a lead screw fixing seat 26. The lead screw fixing seat 26 is interference-fitted with the inner wall of the first cantilever 302 and is disposed inside the first cantilever 302 near the crossbeam 301. The lead screw fixing seat 26 is provided with a lead screw rotation hole 2601 in the middle. The lead screw 5 includes a first rotating part 501, a helical part 502, a second rotating part 503, and a handwheel mounting part 504. The first rotating part 501 is disposed in the lead screw rotation hole 2601, and the two ends of the helical part 502 are respectively the first... The rotating part 501 and the second rotating part 503 are provided. The first tube plug 9 is provided with a lead screw through hole 901. The second rotating part 503 is provided in the lead screw through hole 901. The handwheel mounting part 504 is provided at the other end of the second rotating part 503. The cross-section of the handwheel mounting part 504 is square. The first handwheel 10 is provided with a square hole 1001 in the middle. The handwheel mounting part 504 is provided in the square hole 1001. The first slider 8 is provided with a threaded hole 802 in the middle. The threaded hole 802 is sleeved on the spiral part 502. The rotation of the handwheel drives the lead screw 5 to rotate, thereby driving the first slider 8 to translate along the lead screw 5.

[0053] Specifically, the radius of the handwheel is smaller than the distance from the center line of the lead screw 5 to the ground.

[0054] Specifically, such as Figure 8 As shown, the second slider 23 is provided with a pulley 27 inside. The pulley 27 is fixedly connected to the second slider 23 by a screw 24. The lower end of the pulley 27 abuts against the inside of the second cantilever 303, and the upper end of the pulley 27 abuts against the second guide part 2301. The pulley 27 moves synchronously with the first slider 8 inside the second cantilever 303.

[0055] Specifically, such as Figure 1 and Figure 10As shown, the guiding assembly includes a guide plate 17, a hydraulic rod 21, a connecting rod 19, and a guide roller 18. The guide plate 17 is provided with a connecting rod mounting lug 1704 and a hydraulic rod mounting lug 1705. One end of the connecting rod 19 is connected to the connecting rod mounting lug 1704 via a rotating shaft 20, and the other end is connected to the guide roller 18 via a rotating shaft 20. The connecting rod 19 and the guide roller 18 are symmetrically distributed in a V-shape. One end of the hydraulic rod 21 is connected to the hydraulic rod mounting lug 1705 via a rotating shaft 20, and the other end is connected to one side of the middle of the connecting rod 19 via a rotating shaft 20. The connecting rod 19 rotates around the connecting rod mounting lug 1704, thereby changing the distance between the guide rollers 18. The guide roller 18 rotates around the rotating shaft 20 to guide the drill rod. The hydraulic rod 21 is used to support the connecting rod 19. The guide plates 17 are arranged facing each other and are respectively provided on the movable support plate 7 and the fixed support plate 6.

[0056] Specifically, the material of the guide roller 18 is preferably polyurethane rubber.

[0057] Specifically, such as Figure 9 As shown, the guide plate 17 has a guide plate mounting shaft 1701 on one bottom side and a worm gear engagement key 1703 on the other bottom side. The movable support plate 7 and the fixed support plate 6 are respectively provided with guide plate mounting holes 701. The guide plate mounting holes 701 are symmetrically distributed. One side of the guide plate mounting hole 701 engages with the guide plate mounting shaft 1701, and the other side connects to the worm gear engagement key 1703. The guide plate 17 rotates around the guide plate mounting shaft 1701 on the movable support plate 7 and the fixed support plate 6.

[0058] Specifically, the lower end of the guide plate 17 is provided with an arc portion 1702, which prevents the guide plate 17 from interfering with the movable support plate 7 and / or the fixed support plate 6 when it rotates.

[0059] Specifically, such as Figure 11As shown, the angle adjustment unit includes a worm gear 16, a worm 22, a splined shaft 14, a support column 15, and a second handwheel 13. One end of the splined shaft 14 has a tail plate 2, and the other end passes through the support column 15 and connects to the second handwheel 13. The tail plate 2 has a splined shaft fixing part 201, within which the splined shaft 14 rotates. The worm 22 has a spline hole 2201 in the middle, through which it is sleeved onto the splined shaft 14. The second handwheel 13 drives the splined shaft 14. The key shaft 14 drives the worm gear 22 to rotate, and the worm gear 22 meshes with the worm wheel 16, driving the worm wheel 16 to rotate. The worm wheel 16 has a worm wheel mating hole 1601 in the middle, and the worm wheel mating hole 1601 is connected to the worm wheel mating key 1703 so that the worm wheel 16 drives the movable support plate 7 and the fixed support plate 6 to rotate. The lower end of the support column 15 has a support column fixing part 1501, which is located in the second cantilever 303. The side of the support column 15 fixing column abuts against the second pipe plug 12.

[0060] Specifically, the spline shaft 14 drives the two worm gears 22 to rotate simultaneously, thereby ensuring that the two guide plates 17 adjust their angles synchronously so that the two guide plates 17 always remain parallel.

[0061] Specifically, since the worm wheel 16 and the worm 22 have self-locking properties, meaning that the transmission direction can only be from the worm 22 to the worm wheel 16, the worm wheel 16 will not rotate when the spline shaft 14 or the second handwheel 13 is stationary, thus maintaining the adjustment angle.

[0062] Preferably, a plumb bob can be suspended on the guide plate 17 to determine the vertical direction. By adjusting the second handwheel 13, when the edge of the guide plate 17 coincides with the suspension rope of the plumb bob, the guide plate 17 is in the vertical direction.

[0063] Specifically, such as Figure 8 As shown, the movable support plate 7 and the fixed support plate 6 are fixedly provided with worm gear fixing blocks 28 on their sides. The worm gear fixing blocks 28 are provided with worm gear mounting holes 2801. The worm gear 22 is provided in the worm gear mounting holes 2801. When the movable support plate 7 moves, it drives the worm wheel 16 and the worm gear 22 connected to the movable support plate 7 to move synchronously along the spline shaft 14.

[0064] Specifically, the spline shaft 14 is transitionally fitted with the spline hole 2201.

[0065] Specifically, such as Figure 3 and Figure 8As shown, the tail plate 2 is fixedly mounted on the other side of the crossbeam 301. The tail plate 2 is equipped with a push handle 1. The lower end face of the base frame 3 is equipped with a caster wheel 4. The push handle 1 and the caster wheel 4 cooperate to move the overall mechanism. The movable support plate 7 near the second handwheel 13 and the tail plate 2 near the push handle 1 are equipped with a ground nail fixing plate 25. The ground nail fixing plate 25 is equipped with a ground nail mounting hole 2501. A ground nail 11 is installed in the ground nail mounting hole 2501. The ground nail 11 is used to fix the overall mechanism on the ground. The ground nail 11 is used to fix the position of the movable support plate 7, thereby fixing the distance between the movable support plate 7 and the fixed support plate 6.

[0066] Specifically, the length of the ground stake 11 is at least twice the distance from the upper surface of the ground stake fixing plate 25 to the ground.

[0067] In this embodiment, when using the device, the relevant technicians move the entire mechanism to the designated position by pushing the push handle 1. Then, they first drive the ground nail 11 on the tail plate 2 into the ground and lock the caster 4 to fix the position of the entire mechanism. Then, they turn the second handwheel 13 to adjust the guide plate 17 to the vertical direction. A plumb bob can be suspended on the guide plate 17 to determine the vertical direction. By adjusting the second handwheel 13, the spline shaft 14 of the second handwheel 13 rotates, thereby driving the worm gear 22 to drive the worm wheel 16 to rotate. The worm wheel 16 drives the guide plate 17 to rotate. When the edge of the guide plate 17 coincides with the suspension rope of the plumb bob, they stop turning the second handwheel 13. At this time, due to the self-locking property of the worm wheel 16 and the worm gear 22, the mechanism is stable. The adjustment angle will be fixed. Then, the first handwheel 10 is turned to adjust the distance between the movable support plate 7 and the fixed support plate 6. When both guide rollers 18 are in contact with the side of the drill rod, the first handwheel 10 is stopped, and the ground nails 11 on the back of the movable support plate 7 are hammered into the ground to fix the distance between the guide plates 17. At this time, the drill rod is located between the guide rollers 18. The guide rollers 18 guide the drill rod and reduce the amount of swing of the drill rod. Since the guide rollers 18 are connected by the connecting rod 19 and the hydraulic rod 21 in a V shape, they can meet the needs of drill rods of different diameters. Since the guide rollers 18 rotate with the drill rod, the friction between the guide rollers 18 and the drill rod is reduced, thereby reducing the wear of the guide rollers 18.

[0068] The parts of this utility model not described are existing or known technologies.

[0069] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

[0070] The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A survey drill rig pipe guiding mechanism, characterized by: The utility model relates to a drilling rig, which comprises: a U-shaped base frame (3) welded by hollow square tubes; a pair of guide assemblies symmetrically arranged on the base frame (3) through a support plate, and the distance between the guide assemblies being adjusted by a distance adjusting part arranged inside the base frame (3), the guide assemblies being used for clamping a drill rod; an angle adjusting part arranged on one side of the guide assembly, the angle adjusting part being rotated around an axis by a worm wheel (16) driven to rotate by a worm (22), and the pitch angle of the guide assembly being synchronously adjusted.

2. A survey drill rig drill rod guide according to claim 1, characterised in that: The base frame (3) comprises a cross beam (301), a first cantilever (302) and a second cantilever (303), the cross beam (301) having one end of the first cantilever (302) and one end of the second cantilever (303) welded thereto, the other end of the first cantilever (302) being provided with a first pipe plug (9), the other end of the second cantilever (303) being provided with a second pipe plug (12), and the first pipe plug (9) and the second pipe plug (12) being in interference fit with the inner wall of the base frame (3).

3. A survey drill rig drill rod guide according to claim 2, characterised in that: The support plate comprises a fixed support plate (6) and a movable support plate (7), the fixed support plate (6) being fixedly arranged on one side of the cross beam (301) between the first cantilever (302) and the second cantilever (303), the movable support plate (7) being provided at the bottom of both sides with a first sliding block (8) and a second sliding block (23), the first sliding block (8) being sleeved on the first cantilever (302), the second sliding block (23) being sleeved on the second cantilever (303), the first cantilever (302) being provided with a first sliding block guide groove (304) on the side surface, the second cantilever (303) being provided with a second sliding block guide groove (305) on the side surface, the first sliding block (8) being provided with a first guide part (801) inside, the second sliding block (23) being provided with a second guide part (2301) inside, the first guide part (801) being matched with the first sliding block guide groove (304), the second guide part (2301) being matched with the second sliding block guide groove (305), and the first sliding block (8) and the second sliding block (23) driving the movable support plate (7) to translate along the first cantilever (302), so as to change the distance between the fixed support plate (6) and the movable support plate (7).

4. A survey drill rig drill rod guiding mechanism according to claim 3, characterised in that: The distance adjusting part comprises a lead screw (5) and a first hand wheel (10), the lead screw (5) is arranged inside the first cantilever (302), one end of the lead screw (5) is provided with a lead screw fixing seat (26), the lead screw fixing seat (26) is in interference fit with the inner wall of the first cantilever (302), is arranged inside the first cantilever (302) close to one end of the cross beam (301), the lead screw fixing seat (26) is provided with a lead screw rotating hole (2601) in the middle, the lead screw (5) comprises a first rotating part (501), a spiral part (502), a second rotating part (503) and a hand wheel mounting part (504), the first rotating part (501) is arranged in the lead screw rotating hole (2601), the spiral part (502) has the first rotating part (501) and the second rotating part (503) at both ends, a first pipe plug (9) is provided with a lead screw through hole (901), the second rotating part (503) is arranged in the lead screw through hole (901), the hand wheel mounting part (504) is arranged at the other end of the second rotating part (503), the cross section of the hand wheel mounting part (504) is square, the first hand wheel (10) is provided with a square hole (1001) in the middle, the hand wheel mounting part (504) is arranged in the square hole (1001), the first sliding block (8) is provided with a threaded hole (802) in the middle, the threaded hole (802) is sleeved on the spiral part (502), the hand wheel is rotated to drive the lead screw (5) to rotate, so as to drive the first sliding block (8) to translate along the lead screw (5).

5. A survey drill rig drill rod guide as claimed in claim 3 wherein: The second sliding block (23) is provided with a pulley (27) inside, the pulley (27) is fixedly connected with the second sliding block (23) through a screw (24), the lower end of the pulley (27) abuts against the inside of the second cantilever (303), the upper end of the pulley (27) abuts against the second guide part (2301), the pulley (27) moves synchronously with the first sliding block (8) in the second cantilever (303).

6. A survey drill rig drill rod guide as claimed in claim 1, characterised in that: The guide assembly comprises a guide plate (17), a hydraulic rod (21), a connecting rod (19) and a guide roller (18), the guide plate (17) is provided with a connecting rod mounting lug (1704) and a hydraulic rod mounting lug (1705), one end of the connecting rod (19) is connected with the connecting rod mounting lug (1704) through a rotating shaft (20), the other end is connected with the guide roller (18) through a rotating shaft (20), the connecting rod (19) and the guide roller (18) are symmetrically distributed in a V shape, one end of the hydraulic rod (21) is connected with the hydraulic rod mounting lug (1705) through a rotating shaft (20), the other end is connected with one side of the middle part of the connecting rod (19) through a rotating shaft (20), the connecting rod (19) rotates around the connecting rod mounting lug (1704), so as to change the distance between the guide rollers (18), the guide roller (18) rotates around the rotating shaft (20) to guide the drill pipe, the hydraulic rod (21) is used for supporting the connecting rod (19), the guide plates (17) are oppositely arranged and respectively arranged on the movable support plate (7) and the fixed support plate (6).

7. A survey drill rig drill rod guiding mechanism according to claim 6, characterised in that: One side of the bottom of the guide plate (17) is provided with a guide plate mounting shaft (1701), the other side of the bottom is provided with a worm gear matching key (1703), the movable support plate (7) and the fixed support plate (6) are respectively provided with guide plate mounting holes (701), the guide plate mounting holes (701) are symmetrically distributed, one side of the guide plate mounting hole (701) matches with the guide plate mounting shaft (1701), the other side is connected with the worm gear matching key (1703), the guide plate (17) rotates around the guide plate mounting shaft (1701) on the movable support plate (7) and the fixed support plate (6).

8. A survey drill rig pipe guiding mechanism according to claim 1, characterized in that: The angle adjusting part comprises a worm wheel (16), a worm (22), a spline shaft (14), a support column (15) and a second hand wheel (13), one end of the spline shaft (14) is provided with a tail plate (2), the other end passes through the support column (15) and is connected with the second hand wheel (13), the tail plate (2) is provided with a spline shaft fixing part (201), the spline shaft (14) rotates in the spline shaft fixing part (201), the middle of the worm (22) is provided with a spline hole (2201), the worm (22) is sleeved on the spline shaft (14) through the spline hole (2201), the second hand wheel (13) drives the spline shaft (14) to rotate the worm (22), the worm (22) is engaged with the worm wheel (16) to drive the worm wheel (16) to rotate, the middle of the worm wheel (16) is provided with a worm wheel matching hole (1601), the worm wheel matching hole (1601) is connected with the worm gear matching key (1703) to make the worm wheel (16) drive the movable support plate (7) and the fixed support plate (6) to rotate, the lower end of the support column (15) is provided with a support column fixing part (1501), the support column fixing part (1501) is arranged in the second cantilever (303), the side surface of the fixed column of the support column (15) abuts against the second pipe plug (12).

9. A survey drill rig drill rod guiding mechanism according to claim 8, characterised in that: The movable support plate (7) and the fixed support plate (6) are fixed with a worm fixed block (28) on the side, the worm fixed block (28) is provided with a worm mounting hole (2801), the worm (22) is arranged in the worm mounting hole (2801), when the movable support plate (7) moves, the worm (22) and the worm gear (16) connected with the movable support plate (7) are driven to move along the spline shaft (14) synchronously.

10. A survey drill rig pipe guiding mechanism according to claim 8, characterized in that: The tail plate (2) is fixed on the other side of the cross beam (301), the tail plate (2) is provided with a push handle (1), the bottom frame (3) is provided with a universal wheel (4) on the lower end surface, the push handle (1) and the universal wheel (4) are matched to move the overall mechanism, the movable support plate (7) is provided with a ground nail fixed plate (25) on the side close to the second hand wheel (13) and the tail plate (2) close to the push handle (1), the ground nail fixed plate (25) is provided with a ground nail mounting hole (2501), the ground nail mounting hole (2501) is provided with a ground nail (11), the ground nail (11) is used for fixing the overall mechanism on the ground, the ground nail (11) is used for fixing the position of the movable support plate (7), so as to fix the distance between the movable support plate (7) and the fixed support plate (6).

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