Deep hole drilling machine for geological exploration

Abstract

The utility model discloses a deep hole drilling machine for geological exploration, and relates to the technical field of exploration equipment. The drilling machine is technically characterized by comprising a drilling machine body, and an auxiliary chuck is arranged on a guide rail of the drilling machine body and located between a power head and a clamping device; the auxiliary chuck comprises a fixing support, an upper clamping unit and a lower clamping unit are sequentially arranged in the fixing support in the vertical direction, the same sides of the upper clamping unit and the lower clamping unit are connected with a synchronous driving assembly, and the synchronous driving assembly can drive the upper clamping unit and the lower clamping unit to synchronously move in the vertical direction. When the exploration drilling machine is used for drilling, the auxiliary chuck can achieve a certain limiting effect on the drill rod, and therefore the situation that the drill rod shakes due to the fact that the suspended section is too long and the supporting area is limited, and the drilling precision is affected is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of exploration equipment, and in particular to a deep hole drilling rig for geological exploration. Background Art

[0002] The deep hole drilling rig for geological exploration is a kind of equipment that uses a full hydraulic power system for drilling. It is widely used in geological exploration, mineral exploration, engineering geology, hydrogeology and other fields. Its main features include high efficiency, high degree of automation and low labor intensity. The deep hole drilling rig for geological exploration is suitable for drilling work under various geological conditions, such as solid mineral deposits, engineering geology, shallow oil, natural gas and groundwater. In addition, it can also be used for road and construction exploration, blasting holes and other projects.

[0003] The general operation of the existing deep hole drilling rig used for geological exploration during drilling work is: first supply oil to the chuck (the power head is the core part of the full hydraulic drilling rig, and the hydraulic chuck is a key component of the power head. It plays an important role in whether the torque of the hydraulic motor and the thrust of the oil cylinder can be transmitted to the drill rod) and the clamp, and control the chuck to automatically clamp the drill rod and the clamp to automatically release it; after the power head drives the chuck to carry the drill rod to complete a stroke (that is, drilling a drill rod), first stop the motor at the power head and make the clamp clamp the drill rod; then operate the feed cylinder control valve to be in the lower position, at this time the clamp remains clamped, the chuck automatically releases, the power head retreats quickly, and the drill rod drilled into the hole remains motionless under the action of the clamp. After the power head retreats into place, the power head clamps the new drill rod again and drills according to the above placement; this is repeated to complete continuous drilling work.

[0004] When the power head is drilling with the drill rod, the clamp is in a loose state. At this time, only the section of the drill rod connected to the power head is fixed. The slender drill rod is prone to shaking during the rotation process, which not only affects the drilling accuracy, but also may cause the drill rod to deform and affect the use effect. Utility Model Content

[0005] The present application provides a deep hole drilling rig for geological exploration, which can reduce the amplitude of the drilling rod shaking when the drilling rod rotates.

[0006] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0007] A deep hole drill for geological exploration, comprising a drill body, a power head and a clamp arranged on a guide rail of the drill body, wherein an auxiliary chuck is arranged on the guide rail of the drill body between the power head and the clamp;

[0008] The auxiliary chuck comprises a fixed bracket, an upper clamping unit and a lower clamping unit are sequentially arranged in the fixed bracket along the vertical direction, the same side of the upper clamping unit and the lower clamping unit are connected to a synchronous driving component, the synchronous driving component is installed on the outer side of the fixed bracket, and the synchronous driving component can drive the upper clamping unit and the lower clamping unit to move synchronously along the vertical direction;

[0009] The line connecting the center point of the upper clamping unit and the center point of the lower clamping unit passes through the center point of the clamp along the perpendicular bisector of the guide rail direction of the drilling rig body.

[0010] Furthermore, the upper clamping unit and the lower clamping unit have the same structure, and the two are symmetrical about the central axis of the clamp.

[0011] Furthermore, the fixed bracket is provided with a penetrating guide hole along the width direction of the drilling rig body guide rail; the upper clamping unit includes a clamping plate, and an end rod is fixedly provided on each opposite side of the clamping plate in the width direction, and the two end rods are movably inserted into the guide holes on the corresponding sides of the fixed bracket, and one of the end rods extends outward and is connected to the synchronous drive assembly.

[0012] Furthermore, the synchronous drive assembly comprises a bidirectional threaded rod, and the upper and lower ends of the bidirectional threaded rod are movably mounted on the outside of the fixed bracket through a bearing seat respectively; a driving block is threadedly connected to different thread segments of the bidirectional threaded rod, and the two driving blocks are symmetrical about the center point of the intersection of the threads of the bidirectional threaded rod;

[0013] The two driving blocks are fixedly connected to the end rods on the same side of the upper clamping unit and the lower clamping unit respectively;

[0014] One end of the bidirectional threaded rod is connected to a power unit, and the power unit can drive the bidirectional threaded rod to rotate around its own axis.

[0015] Furthermore, the power unit includes a first gear fixedly connected to one end of the bidirectional threaded rod, a second gear is meshed on one side of the first gear, one end of the second gear is fixedly connected to the output end of the motor, and the housing of the motor is fixedly mounted on the fixed bracket.

[0016] Furthermore, a support plate is provided on the movable sleeve of the output shaft of the motor, and the support plate is fixedly connected to the outer side wall of the fixed bracket.

[0017] Furthermore, the clamping plates of the upper clamping unit and the clamping plates of the lower clamping unit are respectively provided with a layer of wear-resistant plastic on their sides close to each other.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] When the exploration drill rig of the present application is drilling, the power head carries the drill rod and moves along the guide rail on the drill rig body to the area to be drilled, and at the same time drives the drill rod to rotate around its own axis. When the drill rod passes through the auxiliary chuck, the synchronous drive assembly can drive the upper clamping unit and the lower clamping unit to move synchronously and approach each other. When the upper clamping unit and the lower clamping unit are close to the outer surface of the drill rod, a certain limiting effect can be formed on the drill rod during the rotation of the drill rod, so that the amplitude of the drilling rod shaking during the rotation process can be greatly reduced, which is convenient for it to drill accurately into the area to be drilled that has been marked in advance. At the same time, the risk of deformation of the drill rod due to shaking will also be greatly reduced, which effectively improves the reliability of the drill rod when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of this application;

[0022] Figure 2 is a side view of the present application;

[0023] Figure 3 It is a structural schematic diagram of the fixing bracket of the present application;

[0024] Figure 4 It is a schematic diagram of the overall structure of the auxiliary chuck of this application.

[0025] Figure numerals: 1. drilling rig body; 2. power head; 3. clamp; 4. auxiliary chuck; 41. fixed bracket; 42. upper clamping unit; 421. clamping plate; 422. end rod; 43. lower clamping unit; 44. synchronous drive assembly; 441. bidirectional threaded rod; 442. bearing seat; 443. drive block; 444. power unit; 4441. first gear; 4442. second gear; 4443. motor; 5. guide hole; 6. support plate; 7. wear-resistant plastic. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0027] like Figure 1-Figure 4 As shown, a deep hole drilling rig for geological exploration disclosed in the present application comprises a drilling rig body 1, a power head 2 and a clamp 3 arranged on the guide rail of the drilling rig body 1, and an auxiliary chuck 4 is arranged on the guide rail of the drilling rig body 1 between the power head 2 and the clamp 3;

[0028] The auxiliary chuck 4 includes a fixed bracket 41, in which an upper clamping unit 42 and a lower clamping unit 43 are sequentially arranged in the vertical direction, and the same side of the upper clamping unit 42 and the lower clamping unit 43 are connected to a synchronous driving component 44, which is installed on the outer side of the fixed bracket 41, and the synchronous driving component 44 can drive the upper clamping unit 42 and the lower clamping unit 43 to move synchronously in the vertical direction;

[0029] The line connecting the center point of the upper clamping unit 42 and the center point of the lower clamping unit 43 passes through the center point of the clamp 3 along the perpendicular midline of the guide rail direction of the drilling rig body 1 .

[0030] In the above embodiment, the lower end of the fixed bracket 41 of the present application is fixedly mounted on the guide rail of the drilling rig body 1, so that the fixed bracket 41 can provide a reliable installation foundation for the upper clamping unit 42, the lower clamping unit 43 and the outer synchronous drive assembly 44 through the guide rail of the drilling rig body 1. The line between the center point of the upper clamping unit 42 and the center point of the lower clamping unit 43 in the fixed bracket 41 of the present application passes through the center point of the clamp 3 (or is colinear with the axis of the clamp 3) along the mid-perpendicular line in the direction of the guide rail of the drilling rig body 1, so that when the power head 2 drives the drill rod to move along the guide rail of the drilling rig body 1, it can be ensured that the drill rod can smoothly move to the center point of the clamp 3 after passing through the middle position of the auxiliary chuck 4.

[0031] When drilling is required in the area to be drilled, first fix one end of the drill rod in the chuck on the power head 2, open the clamp 3, and then start the power head 2 to drive the drill rod to move along the guide rail of the drilling rig body 1. After the drill rod passes through the upper clamping unit 42 and the lower clamping unit 43 in the auxiliary chuck 4, start the synchronous drive assembly 44 to make the upper clamping unit 42 and the lower clamping unit 43 move synchronously and approach each other until the upper clamping unit 42 and the lower clamping unit 43 are close to the surface of the drill rod (at this time, the upper clamping unit 42 and the lower clamping unit 43 will not restrict the drill rod from continuing to move along the guide rail). After the drill rod passes through the clamp 3, It will continue to move toward the area to be drilled and drill into the area to be drilled. In order to facilitate the drill rod to drill into the soil, the power head 2 will rotate synchronously with the drill rod. When the drill rod is drilling, in addition to the power head 2 fixing one end of it, there is also an auxiliary chuck 4 on the rod body to guide and limit its movement process (that is, the drill rod can rotate around its own axis in the auxiliary chuck 4, and can move horizontally along the guide rail direction, but it is difficult to shake). Compared with the existing technology, it can effectively prevent the slender drill rod from shaking significantly during the rotation process due to the excessive length of the suspended part, thereby affecting the accuracy of drilling, and the drill rod from being deformed due to shaking, affecting its use effect.

[0032] Furthermore, if Figure 2 and Figure 4 As shown, the upper clamping unit 42 and the lower clamping unit 43 have the same structure, and the two are symmetrical about the central axis of the clamper 3.

[0033] In the above embodiments, the upper clamping unit 42 and the lower clamping unit 43 of the present application have the same structure and are symmetrical about the axis of the center of the clamp 3. This not only makes it convenient to quickly connect them with the synchronous drive assembly 44 during assembly, but also makes it convenient for the synchronous drive assembly 44 to drive the upper clamping unit 42 and the lower clamping unit 43 to remain symmetrical with the center axis of the clamp 3 at all times during the movement process. In this way, even if the diameter of the drill rod changes, it can be ensured that the drill rod can smoothly pass through the center of the clamp 3 after passing through the upper clamping unit 42 and the lower clamping unit 43.

[0034] Furthermore, if Figure 3 and Figure 4 As shown, the fixed bracket 41 is provided with a penetrating guide hole 5 along the width direction of the guide rail of the drilling rig body 1; the upper clamping unit 42 includes a clamping plate 421, and an end rod 422 is fixedly provided on one opposite side of the width direction of the clamping plate 421, and the two end rods 422 are respectively movably inserted into the guide hole 5 on the corresponding side of the fixed bracket 41, and one of the end rods 422 extends outward and is connected to the synchronous drive assembly 44.

[0035] In the above embodiment, the end rods 422 installed at both ends of the clamping plate 421 along the width direction of the guide rail of the drilling rig body 1 are inserted into the corresponding guide holes 5 on the fixed bracket 41, and one of the end rods 422 is connected to the synchronous drive assembly 44, so that when the synchronous drive assembly 44 drives the clamping plate 421 to move in the vertical direction through the end rod 422, the guide hole 5 on the fixed bracket 41 can provide a guide for the movement of the clamping plate 421, so that the movement process of the clamping plate 421 is more stable. In actual use, the clamping plate 421 can be set to an arc shape close to the surface of the drill rod toward the drill rod side, which can further improve the stability of the drill rod rotation process.

[0036] Furthermore, if Figure 4 As shown, the synchronous drive assembly 44 includes a bidirectional threaded rod 441, and the upper and lower ends of the bidirectional threaded rod 441 are movably mounted on the outside of the fixed bracket 41 through a bearing seat 442 respectively; a driving block 443 is threadedly connected to different thread segments of the bidirectional threaded rod 441, and the two driving blocks 443 are symmetrical about the center point of the intersection of the threads of the bidirectional threaded rod 441;

[0037] The two driving blocks 443 are fixedly connected to the end rods 422 on the same side of the upper clamping unit 42 and the lower clamping unit 43 respectively;

[0038] One end of the bidirectional threaded rod 441 is connected to a power unit 444 , and the power unit 444 can drive the bidirectional threaded rod 441 to rotate around its own axis.

[0039] In the above embodiments, when the bidirectional threaded rod 441 of the present application rotates around its own axis driven by the power unit 444, the two driving blocks 443 on different threaded segments of the bidirectional threaded rod 441 will approach or move away from each other (mainly depending on the rotation direction of the bidirectional threaded rod 441), and the two driving blocks 443 are respectively connected to the end rod 422 on the same side of the upper clamping unit 42 and the lower clamping unit 43, so that during the movement of the two driving blocks 443, the upper clamping unit 42 and the lower clamping unit 43 can be brought closer to or away from each other in the vertical direction. The specific distance between the upper clamping unit 42 and the lower clamping unit 43 can be determined according to the actual drill pipe diameter used, so that the movement process of the upper clamping unit 42 and the lower clamping unit 43 can be smooth and reliable.

[0040] Furthermore, if Figure 4 As shown, the power unit 444 includes a first gear 4441 fixedly connected to one end of the bidirectional threaded rod 441, a second gear 4442 is meshed on one side of the first gear 4441, one end of the second gear 4442 is fixedly connected to the output end of the motor 4443, and the shell of the motor 4443 is fixedly mounted on the fixed bracket 41.

[0041] In the above embodiment, when the motor 4443 of the present application is working, the second gear 4442 at its output end can drive the first gear 4441 to rotate, and the first gear 4441 is connected to one end of the bidirectional threaded rod 441, so that the bidirectional threaded rod 441 can achieve the effect of rotating around its own axis under the drive of the motor 4443. During use, the technician only needs to control the start and stop and the rotation direction of the motor 4443 to control the moving distance and moving direction of the upper clamping unit 42 and the lower clamping unit 43, which is simple and convenient to operate.

[0042] Furthermore, if Figure 4 As shown, a support plate 6 is movably sleeved on the output shaft of the motor 4443 , and the support plate 6 is fixedly connected to the outer side wall of the fixed bracket 41 .

[0043] In the above embodiments, the support plate 6 sleeved on the output shaft of the motor 4443 can share part of the force applied to the output shaft of the motor 4443 during the working process, thereby improving the smoothness of the working process of the motor 4443.

[0044] Furthermore, if Figure 4 As shown, the clamping plates 421 of the upper clamping unit 42 and the clamping plates 421 of the lower clamping unit 43 are respectively provided with a layer of wear-resistant plastic 7 on their sides close to each other.

[0045] In the above embodiments, since the drill rod will generate friction with the clamping plate 421 of the upper clamping unit 42 and the clamping plate 421 of the lower clamping unit 43 during the rotation process, in order to reduce the wear of the drill rod caused by the clamping plate 421 of the upper clamping unit 42 and the clamping plate 421 of the lower clamping unit 43 during the process, a layer of wear-resistant plastic 7 is respectively provided on the mutually close sides of the two clamping plates 421. The strength of the plastic is lower than that of the drill rod made of metal. Therefore, during the contact process between them, the wear on the surface of the drill rod can be reduced, thereby protecting the drill rod. In order to facilitate the replacement of the wear-resistant plastic 7, the wear-resistant plastic 7 and the clamping plate 421 can be detachably connected together by bolts. The wear-resistant plastic 7 of the present application can preferably be polytetrafluoroethylene or polyurethane.

[0046] The implementation principle of this embodiment is as follows: before use, first fix one end of the drill rod in the chuck on the power head 2, and open the clamp 3, then start the power head 2 to drive the drill rod to move along the guide rail of the drilling rig body 1, and when the drill rod passes through the upper clamping unit 42 and the lower clamping unit 43 in the auxiliary chuck 4, start the motor 4443 to drive the bidirectional threaded rod 441 to rotate, and the two driving blocks 443 on the bidirectional threaded rod 441 will drive the clamping plate 421 in the upper clamping unit 42 and the clamping plate 421 of the lower clamping unit 43 to move synchronously and approach each other until the two clamping plates 421 contact the upper and lower side surfaces of the drill rod respectively, and the drill rod continues to pass through the clamp 3 and moves toward the area to be drilled, and when it contacts the soil in the area to be drilled, the drilling work begins. The upper clamping unit 42 and the lower clamping unit 43 in the auxiliary chuck 4 added on the guide rail of the drilling rig body 1 of this application can effectively limit the circumferential swing of the drill rod during its rotation. This can prevent the drill rod from shaking too much during rotation, which would affect the accuracy of drilling, and prevent the drill rod from deforming due to shaking, which would affect its use effect.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A deep hole drilling rig for geological exploration, comprising a drilling rig body (1) and a power head (2) and a clamp (3) arranged on a guide rail of the drilling rig body (1), characterized in that: An auxiliary chuck (4) is provided on the guide rail of the drilling rig body (1) between the power head (2) and the clamp (3); The auxiliary chuck (4) comprises a fixed bracket (41), an upper clamping unit (42) and a lower clamping unit (43) are sequentially arranged in the fixed bracket (41) along the vertical direction, the same side of the upper clamping unit (42) and the lower clamping unit (43) are connected to a synchronous drive component (44), the synchronous drive component (44) is installed on the outside of the fixed bracket (41), and the synchronous drive component (44) can drive the upper clamping unit (42) and the lower clamping unit (43) to move synchronously along the vertical direction; The line connecting the center point of the upper clamping unit (42) and the center point of the lower clamping unit (43) passes through the center point of the clamp (3) along the perpendicular bisector of the guide rail direction of the drilling rig body (1).

2. The deep hole drilling machine for geological exploration according to claim 1, characterized in that: The upper clamping unit (42) and the lower clamping unit (43) have the same structure, and are symmetrical about the central axis of the clamp (3).

3. The deep hole drilling machine for geological exploration according to claim 2, characterized in that: The fixed bracket (41) is provided with a guide hole (5) penetrating along the width direction of the guide rail of the drilling rig body (1); the upper clamping unit (42) comprises a clamping plate (421), and an end rod (422) is fixedly provided on opposite sides of the clamping plate (421) in the width direction, and the two end rods (422) are respectively movably inserted into the guide hole (5) on the corresponding side of the fixed bracket (41), and one of the end rods (422) extends outward and is connected to the synchronous drive assembly (44).

4. The deep hole drilling machine for geological exploration according to claim 3 is characterized in that: The synchronous drive assembly (44) comprises a bidirectional threaded rod (441), and the upper and lower ends of the bidirectional threaded rod (441) are movably mounted on the outside of the fixed bracket (41) through a bearing seat (442); different thread segments on the bidirectional threaded rod (441) are respectively threadedly connected with a driving block (443), and the two driving blocks (443) are symmetrical about the center point of the intersection of the threads of the bidirectional threaded rod (441); The two driving blocks (443) are respectively fixedly connected to the end rod (422) on the same side of the upper clamping unit (42) and the lower clamping unit (43); One end of the bidirectional threaded rod (441) is connected to a power unit (444), and the power unit (444) can drive the bidirectional threaded rod (441) to rotate around its own axis.

5. The deep hole drilling machine for geological exploration according to claim 4, characterized in that: The power unit (444) comprises a first gear (4441) fixedly connected to one end of the bidirectional threaded rod (441); a second gear (4442) is meshed on one side of the first gear (4441); one end of the second gear (4442) is fixedly connected to the output end of the motor (4443); and a housing of the motor (4443) is fixedly mounted on the fixed bracket (41).

6. The deep hole drilling machine for geological exploration according to claim 5, characterized in that: A support plate (6) is movably sleeved on the output shaft of the motor (4443), and the support plate (6) is fixedly connected to the outer side wall of the fixed bracket (41).

7. The deep hole drilling machine for geological exploration according to any one of claims 1 to 6, characterized in that: A layer of wear-resistant plastic (7) is respectively provided on the mutually adjacent sides of the clamping plate (421) of the upper clamping unit (42) and the clamping plate (421) of the lower clamping unit (43).

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