Portable marking and drilling machine
By designing the wire rope, winch, and hydraulic system of the portable SPD drilling rig, the problems of bulkiness and inaccurate manual counting in existing SPD drilling rigs have been solved, achieving portability and automatic counting.
Patent Information
- Application Number
- CN202210510299.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-11
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2042-05-11
AI Technical Summary
Existing standard penetration drilling rigs are complex in structure, large in size and heavy, difficult to move, and manual counting is inaccurate and time-consuming, making them difficult to use in areas with inconvenient transportation.
A portable marking and penetration drilling machine was designed, which adopts a wire rope and winch structure to realize automatic counting and force multiplication functions. It combines a hydraulic system and a mechanical counter to simplify the structure and reduce weight.
It facilitates transportation and use, ensures accurate mechanical counting, reduces manual operation, and improves work efficiency and accuracy.
Smart Images

Figure CN114961547B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of standard penetration drilling rig technology, specifically relating to a portable standard penetration drilling rig. Background Technology
[0002] When preparing a geological report, it is necessary to follow the "three-component comparison" principle, namely standard penetration test (SPT), static penetration test (SPT), and geotechnical test, and conduct a comprehensive analysis to obtain the results. When drilling and sampling the tested soil, SPT and SPT are the two main methods. Both SPT and SPT are in-situ tests. SPT uses the standard vertical impact method to obtain soil samples, thereby obtaining the foundation bearing capacity and soil stratification. After correction, the data are used to obtain foundation bearing capacity data and to determine the compaction and weathering degree of sandy soil.
[0003] Existing standard penetration drilling rigs are bulky and difficult to relocate due to their complex structure and large size. This makes them inconvenient to use in areas with poor transportation. In practice, the number of standard penetration hammer blows needs to be manually counted for later statistics. However, manual counting is not only inaccurate but also time-consuming, labor-intensive, and troublesome. Summary of the Invention
[0004] The purpose of this invention is to address the above problems by providing a portable marking and penetration drilling machine, which has the advantages of simple structure, easy transportation, automatic counting, and multiplier effect.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable standard penetration drilling rig, comprising a drilling rig base and a lifting ring. From left to right, a column, a winch bracket, and an inclined support are fixedly installed on the top of the drilling rig base. The top of the inclined support is fixedly hinged to the top of the column. A mast is movably installed on the top of the column, thereby increasing the height of the column. Fixed pulleys are provided on both sides of the top of the mast. A sliding sleeve is slidably installed on the outer surface of the column. A back plate is provided on the surface of the sliding sleeve. A standard penetration test specimen is provided on the surface of the back plate. (By providing a sliding sleeve on the surface of the column and a back plate on the surface of the sliding sleeve, when the sliding sleeve moves up and down on the outer surface of the column, the back plate also moves along with it. Since the back plate is connected to the standard penetration test specimen, when the back plate moves, the standard penetration test specimen also moves.) A winch is fixedly installed on the top of the winch bracket. A winch motor is drivenly connected to one side of the winch. A steel wire rope is wound around the surface of the winch motor. The other end of the steel wire rope passes through a fixed pulley and is connected to a hook.
[0006] As a preferred embodiment of the present invention, the standard penetration test (SPT) includes a SPT rod, a connecting plate, a SPT frame, and a SPT motor. The connecting plate is fixedly mounted on the upper surface of the back plate. A SPT frame is fixedly mounted on the upper left side of the connecting plate. A SPT motor is fixedly mounted on the top of the SPT frame. A counter frame is fixedly mounted on the side of the SPT frame. A counter is fixedly mounted on the top of the counter frame. The output end of the SPT motor is connected to a crank. An inner pad is provided at the top of the middle of the connecting plate. A first SPT hammer is provided at the top of the inner pad. A SPT rod is movably mounted at the bottom of the first SPT hammer. A drill rod is threadedly connected to the bottom of the SPT rod. The standard penetration test (SPT) hammer has a suspended portion on its right side. The crank contacts the suspended portion on the right side of the first SPT hammer. A second SPT hammer is located on top of the first SPT hammer. When the SPT motor starts, it drives the crank to rotate. During the rotation, the crank moves the suspended portion of the first SPT hammer, causing the first SPT hammer to move upward along the SPT rod. The second SPT hammer is a weighted part. When the first SPT hammer reaches its highest point, it suddenly falls due to the lack of crank support. When it reaches its lowest point, it drives the drill rod to move downward. Upon reaching the lowest point, it strikes the SPT rod, and the impact drives the drill rod to move downward, thus completing the drilling and sampling work.
[0007] As a preferred embodiment of the present invention, the first standard penetration test hammer separates from the crank when it reaches its maximum height. When the crank moves, it rolls in contact with the overhanging end of the counter. When the crank drives the first standard penetration test hammer to move upward to the highest point, the first standard penetration test hammer separates from the crank. Since there is no crank support, the first standard penetration test hammer begins to fall suddenly and undergoes free fall motion. When it reaches the lowest point, it drives the drill rod to move downward. While the crank is rotating, it also collides with the counter. The counter records the number of downward hammer blows. There is no need for manual counting, and mechanical counting is more accurate.
[0008] As a preferred embodiment of the present invention, the middle part of the standard penetration test rod passes through the top of the first and second standard penetration test hammers and is threadedly connected to a lifting ring. The surface of the middle part of the standard penetration test rod is provided with three guide grooves, and the bottom surface of the first standard penetration test hammer is provided with three keys. The three guide grooves are adapted to the three keys. By threading the middle part of the standard penetration test rod through the first and second standard penetration test hammers and connecting it to the lifting ring, and by adapting the three guide grooves on the surface of the middle part of the standard penetration test rod to the three keys on the bottom surface of the first standard penetration test hammer, it is convenient to orient the first standard penetration test hammer.
[0009] As a preferred embodiment of the present invention, a crank suspension screw shaft is provided at the lower end of the crank, the crank suspension screw shaft passes through the crank, and a bearing is installed on the suspended part of the crank suspension screw shaft. A standard penetration test hammer cantilever is welded to the surface of the first standard penetration test hammer, and the bearing makes rolling contact with the standard penetration test hammer cantilever. When in use, the crank suspension screw shaft passes through the crank suspension part and is equipped with the bearing. Since the standard penetration test hammer cantilever is welded to the surface of the first standard penetration test hammer, when the bearing makes rolling contact with the standard penetration test hammer cantilever, the crank suspension screw shaft extends outward, moving away from the side of the column.
[0010] In a preferred embodiment of the present invention, four fixed pulleys are provided, arranged in pairs, with two pairs of pulleys placed side-by-side and coaxially. A large hook is fixedly installed at the other end of the wire rope, hooking a lifting ring. The lifting ring is connected to the standard penetration test (SPT) frame to lift the SPT. When the lifting ring is connected to the drill rod, the drill rod can be pulled out. By providing four fixed pulleys and placing them in pairs side-by-side and coaxially, the wire rope is prevented from slipping. The large hook, fixedly installed at the other end of the wire rope, hooks the lifting ring, and the SPT is lifted via the connection to the SPT frame. When the lifting ring is connected to the drill rod, the drill rod can be pulled out. Before each operation, the SPT can be raised to its maximum height. After drilling is completed, the drill rod and drill bit can be lifted up by threading a connection between the lifting ring and the drill rod. One winch can be used for both purposes.
[0011] As a preferred embodiment of the present invention, a control system is fixedly installed in the middle of the front side of the winch support. The control system includes a multi-way hydraulic directional valve and an oil circuit. A power module is movably connected to the drilling rig base. The power module includes a power unit and a hydraulic pump. The oil circuit is connected to the standard penetration test (SPT) motor when the SPT is hammered downwards, and connected to the winch motor when the SPT is pulled out. The power unit is driven by the hydraulic pump. The hydraulic pump is movably connected to the multi-way hydraulic valve through the oil circuit using a hydraulic quick connector. When in use, the oil circuit is controlled by the multi-way hydraulic valve of the control system. When the SPT is hammered downwards, the oil circuit supplies the SPT motor. When the hammering is completed and the SPT is pulled out, the multi-way directional valve is operated, and the oil circuit supplies the winch motor. This dual-purpose machine reduces the overall weight. The power unit can be a gasoline engine, a diesel engine, or an electric motor. Then, the hydraulic pump drives the SPT motor and the winch motor through the multi-way hydraulic valve.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0013] This invention utilizes a combination of wire rope, standard penetration test (SPT), and column structures. The lower end of the wire rope is connected to a large hook, allowing the SPT to be raised to the top of the column before each work session. After drilling is completed, the drill rod and drill string can be lifted using a threaded connection between the lifting ring and the drill rod. A single winch can serve two purposes, featuring a simple structure that facilitates transport and use. The winch support elevates the winch's position, shortening the suspended length of the wire rope. Furthermore, it allows for the placement of multi-way hydraulic valves, enabling workers to observe and operate simultaneously without bending over.
[0014] This invention utilizes the combination of a crank and a counter, where the crank simultaneously collides with the counter during rotation. The counter is installed on the front side of the standard penetration test frame, i.e., the side closest to the column. The counter records the number of downward hammer blows, eliminating the need for manual counting and making mechanical counting more accurate.
[0015] This invention achieves a force multiplication effect by using the combination of a winch and a hook, where the lifting force of the winch is half the load of the hook.
[0016] This invention utilizes a control system, a winch motor, and a standard penetration test (SPT) device to coordinate structures. During operation, the control system controls the flow of oil through a multi-way hydraulic valve. When the SPT is hammered downwards, oil is supplied to the SPT motor. After hammering, when the device is pulled out, the multi-way directional valve is operated to supply oil to the winch motor. This dual-purpose design reduces the overall weight of the machine. The power unit can be a gasoline engine, a diesel engine, or an electric motor. The hydraulic pump then drives the SPT motor and the winch motor through the multi-way hydraulic valve. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention;
[0018] Figure 2 This is a schematic diagram of the standard penetration test cross-section structure of the present invention;
[0019] Figure 3 This is a schematic diagram of the overall rear view structure of the standard penetration test system of the present invention;
[0020] Figure 4 This is a schematic diagram of the overall main structure of the standard penetration test of the present invention;
[0021] Figure 5 This is a schematic diagram of the counter structure of the present invention;
[0022] Figure 6 This is a schematic diagram of the wire winding method of the present invention.
[0023] In the diagram: 1. Drill rig base; 2. Diagonal support; 3. Winch bracket; 4. Winch; 5. Winch motor; 6. Standard penetration test (SPT) hammer; 7. Column; 8. Mast; 9. Fixed pulley; 10. Lifting ring; 11. SPT hammer rod; 12. Second SPT hammer; 13. First SPT hammer; 14. Inner pad; 15. Connecting plate; 16. SPT frame; 17. SPT motor; 18. Crank; 19. Crank cantilever screw shaft; 20. SPT hammer cantilever; 21. Hook; 22. Counter; 23. Counter frame; 24. Control system. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] like Figures 1 to 6 As shown, the present invention provides a portable standard penetration drilling machine, including a drilling base 1 and a lifting ring 10. From left to right, a column 7, a winch bracket 3, and an inclined support 2 are fixedly installed on the top of the drilling base 1. The top of the inclined support 2 is fixedly hinged to the top of the column 7. A mast 8 is movably installed on the top of the column 7, thereby increasing the height of the column. Fixed pulleys 9 are provided on both sides of the top of the mast 8. A sliding sleeve is slidably installed on the outer surface of the column 7. A back plate is provided on the surface of the sliding sleeve, and a standard penetration tester 16 is provided on the surface of the back plate. (By providing a sliding sleeve on the surface of the column and a back plate on the surface of the sliding sleeve, when the sliding sleeve moves up and down on the outer surface of the column, the back plate also moves along with it. Since the back plate is connected to the standard penetration tester, when the back plate moves, the standard penetration tester also moves along with it.) A winch 4 is fixedly installed on the top of the winch bracket 3. A winch motor 5 is drivenly connected to one side of the winch 4. A steel wire rope is wound around the surface of the winch motor 5, and the other end of the steel wire rope passes through the fixed pulley 9 and is connected to the hook 21.
[0026] The standard penetration test (SPT) 6 includes a standard penetration test rod 11, a connecting plate 15, a standard penetration test frame 16, and a standard penetration test motor 17. The connecting plate 15 is fixedly installed on the upper surface of the back plate. The standard penetration test frame 16 is fixedly installed on the upper left side of the connecting plate 15. The standard penetration test motor 17 is fixedly installed on the top of the standard penetration test frame 16. A counter frame 23 is fixedly installed on the side of the standard penetration test frame 16. A counter 22 is fixedly installed on the top of the counter frame 23. The output end of the standard penetration test motor 17 is connected to a crank 18. An inner pad 14 is provided at the top of the middle of the connecting plate 15. A first standard penetration test hammer 13 is provided on the top of the inner pad 14. The standard penetration test rod 11 is movably installed at the bottom of the first standard penetration test hammer 13. A drill rod is threadedly connected to the bottom of the standard penetration test rod 11. A drill rod is provided on the right side of the first standard penetration test hammer 13. In the suspended section, the crank 18 contacts the suspended section on the right side of the first SPT hammer 13. The top of the first SPT hammer 13 is equipped with a second SPT hammer 12. When the SPT motor 17 starts, it drives the crank 18 to rotate. During the rotation, the crank 18 will push the suspended section of the first SPT hammer 13, thereby driving the first SPT hammer 13 to move upward along the SPT rod 11. The second SPT hammer 12 is the weighted part. When the first SPT hammer 13 reaches the highest point, it will suddenly fall due to the lack of support from the crank 18. When it reaches the lowest point, it will drive the drill rod to move downward. When it reaches the lowest point, it will hit the SPT rod 11. Due to the impact, the SPT rod 11 will drive the drill rod to move downward, thereby completing the drilling and sampling work.
[0027] When the first SPT hammer 13 reaches its maximum height, it separates from the crank 18. When the crank 18 moves, it rolls into contact with the overhanging end of the counter 22. When the crank 18 drives the first SPT hammer 13 to move upward to the highest point, the first SPT hammer 13 separates from the crank 18. Since there is no support from the crank 18, the first SPT hammer 13 begins to fall suddenly and undergoes free fall. When it reaches the lowest point, it drives the drill rod to move downward. While the crank 18 is rotating, it also collides with the counter 22. The counter 22 records the number of downward hammer blows. No manual counting is required, and mechanical counting is more accurate.
[0028] The standard penetration test rod 11 has a threaded connection between the top of the first standard penetration test hammer 13 and the second standard penetration test hammer 12 and a lifting ring 10. The surface of the middle part of the standard penetration test rod 11 is provided with three guide grooves, and the bottom surface of the first standard penetration test hammer 13 is provided with three keys. The three guide grooves and the three keys are adapted to each other. By threading the middle part of the standard penetration test rod 11 through the first standard penetration test hammer 13 and the second standard penetration test hammer 12 and connecting it with the lifting ring 10, and by adapting the three guide grooves on the surface of the middle part of the standard penetration test rod 11 to the three keys on the bottom surface of the first standard penetration test hammer 13, it is convenient to orient the first standard penetration test hammer 13.
[0029] The crank 18 has a crank extension screw shaft 19 at its lower end. The crank extension screw shaft 19 passes through the crank 18, and a bearing is installed on the extended part of the crank extension screw shaft 19. A standard penetration test hammer cantilever 20 is welded to the surface of the first standard penetration test hammer 13. The bearing and the standard penetration test hammer cantilever 20 are in rolling contact. When in use, the crank extension screw shaft 19 passes through the extended part of the crank 18 and is installed with the bearing. Since the standard penetration test hammer cantilever 20 is welded to the surface of the first standard penetration test hammer 13, when the bearing and the standard penetration test hammer cantilever 20 are in rolling contact, the crank extension screw shaft 19 extends outward, moving away from the side of the column.
[0030] The system includes four fixed pulleys 9, arranged in pairs, with two pairs of pulleys placed side-by-side and coaxially. A large hook 21 is fixedly installed at the other end of the wire rope, hooking the lifting ring 10. The lifting ring 10 is connected to the standard penetration test frame 16 to lift the standard penetration test 6. When the lifting ring 10 is connected to the drill rod, the drill rod can be pulled out. By using four fixed pulleys 9 and placing them in pairs side-by-side and coaxially, the system prevents the wire from slipping. The large hook 21, fixedly installed at the other end of the wire rope, hooks the lifting ring 10, which is connected to the standard penetration test frame 16 to lift the standard penetration test 6. When the lifting ring 10 is connected to the drill rod, the drill rod can be pulled out. Before each operation, the standard penetration test 6 can be raised to its maximum height. After drilling is completed, the lifting ring can be threaded onto the drill rod to lift the drill rod and drill bit that has been impacted. One winch can be used for both purposes.
[0031] The control system 24 is fixedly installed in the middle of the front side of the winch support 3. The control system 24 includes a multi-way hydraulic directional valve and an oil circuit. The power module is movably connected to the drilling rig base 1. The power module includes a power unit and a hydraulic pump. The oil circuit is connected to the standard penetration test motor 17 of the standard penetration test 6 when the standard penetration test 6 is hammered downwards. The oil circuit is connected to the winch motor 5 when the standard penetration test 6 is pulled out. The power unit is connected to the hydraulic pump. The hydraulic pump is movably connected to the multi-way hydraulic valve through the oil circuit using a hydraulic quick connector. When in use, the oil circuit is controlled by the multi-way hydraulic valve of the control system 24. When the standard penetration test 6 is hammered downwards, the oil circuit supplies the standard penetration test motor 17. When the hammering is completed and the winch is pulled out, the multi-way directional valve is operated, and the oil circuit supplies the winch motor 5. This dual-purpose machine reduces the weight of the whole machine. The power unit can be a gasoline engine, a diesel engine, or an electric motor. Then the hydraulic pump drives the standard penetration test motor 17 and the winch motor 5 through the multi-way hydraulic valve.
[0032] Working principle and usage process of this invention:
[0033] The drilling rig base 1 provides support for the entire standard penetration test (SPT) rig. The inclined support 2 connects the drilling rig base 1 and the column 7, maintaining the stability of the drilling rig. The winch bracket 3, mounted on the drilling rig base 1, supports the winch motor 5 and winch 4. The winch motor 5 powers the winch 4, which is wound with a steel wire rope. When the winch 4 rotates, the steel wire rope passes through the fixed pulley 9, lifting the SPT 6. A sliding sleeve and back plate are installed on the surface of the column. The sliding sleeve moves up and down on the outer surface of the column, and the sliding sleeve and back plate can open and close. The back plate is connected to the SPT, thus increasing the height of the column 7. The fixed pulley 9 prevents the wire rope from slipping off. The winch bracket 3 raises the position of the winch 4, shortening the suspended length of the steel wire rope. It also facilitates the placement of multi-way hydraulic valves, allowing workers to observe and operate simultaneously without bending over.
[0034] By installing four fixed pulleys 9, and placing them in pairs side-by-side coaxially, the wire rope is prevented from slipping off. A large hook 21 is fixedly installed at the other end of the wire rope. Before each operation, the standard drill string 6 can be raised to its maximum height. After drilling is completed, the drill string and drill bit can be lifted up by threading a lifting ring to the drill rod. One winch can be used for two purposes.
[0035] By mounting the standard penetration test (SPT) motor 17 as the power source on the standard penetration test frame 16, which is mounted on the connecting plate 15, when the SPT motor 17 starts, it drives the crank 18 to rotate. During rotation, the crank 18 actuates the overhanging portion of the first SPT hammer 13, causing it to move upward along the standard penetration test rod 11. The second SPT hammer 12 serves as a weight. When the first SPT hammer 13 reaches its highest point, without the support of the crank 18, it suddenly falls. Upon reaching its lowest point, it drives the drill rod downward, reaching its lowest position. The hammer strikes the standard penetration test rod 11, which in turn drives the drill rod downwards to complete the drilling and sampling process. As the crank 18 rotates, it simultaneously collides with the counter 22, which records the number of downward hammer strikes. This eliminates the need for manual counting, making mechanical counting more accurate. Furthermore, the top of the standard penetration test rod 11 is threaded through the first standard penetration hammer 13 and the second standard penetration hammer 12 and connected to the lifting ring 10. The three guide grooves on the standard penetration test rod 11 are matched with the three keys on the first standard penetration hammer 13, which facilitates the orientation of the first standard penetration hammer 13.
[0036] When in use, the crank extension screw shaft 19 passes through the extension portion of the crank 18 and is fitted with a bearing. Since the standard penetration hammer cantilever 20 is welded to the surface of the first standard penetration hammer 13, when the bearing rolls into contact with the standard penetration hammer cantilever 20, the crank extension screw shaft 19 extends outward, moving away from the column.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A portable marking and penetration drilling machine, comprising a drilling base (1) and a lifting ring (10), characterized in that: The top of the drilling rig base (1) is fixedly installed with a column (7), a winch bracket (3) and an inclined support (2) from left to right. The top of the inclined support (2) is fixedly hinged to the top of the column (7). A mast (8) is movably installed on the top of the column (7). Fixed pulleys (9) are provided on both sides of the top of the mast (8). A sliding sleeve is slidably installed on the outer surface of the column (7). A back plate is provided on the surface of the sliding sleeve. A standard plate (16) is provided on the surface of the back plate. A winch (4) is fixedly installed on the top of the winch bracket (3). A winch motor (5) is connected to one side of the winch (4). A wire rope is wound on the surface of the winch (4). The other end of the wire rope passes through the fixed pulley (9) and is connected to the hook (21). The standard penetration test (6) includes a standard penetration test rod (11), a connecting plate (15), a standard penetration test frame (16), and a standard penetration test motor (17). The connecting plate (15) is fixedly installed on the upper surface of the column (7). The standard penetration test frame (16) is fixedly installed on the upper left side of the connecting plate (15). The standard penetration test motor (17) is fixedly installed on the top of the standard penetration test frame (16). The counter frame (23) is fixedly installed on the side of the standard penetration test frame (16). The counter (22) is fixedly installed on the top of the counter frame (23). The output of the standard penetration test motor (17) is... The end drive is connected to a crank (18), and an inner pad (14) is provided at the top of the middle of the connecting plate (15). A first standard penetration test hammer (13) is provided at the top of the inner pad (14). A standard penetration test rod (11) is movably installed at the bottom of the first standard penetration test hammer (13). A drill rod is threadedly connected to the bottom of the standard penetration test rod (11). A suspended part is provided on the right side of the first standard penetration test hammer (13). The crank (18) is in contact with the suspended part on the right side of the first standard penetration test hammer (13). A second standard penetration test hammer (12) is provided at the top of the first standard penetration test hammer (13). When the first standard penetration hammer (13) reaches its maximum rising height, it separates from the crank (18), and when the crank (18) moves, it rolls into contact with the overhanging end of the counter (22); There are four fixed pulleys (9), and the four fixed pulleys (9) are arranged in pairs. The two pairs of fixed pulleys (9) are placed side by side and coaxially. A large hook (21) is fixedly installed at the other end of the wire rope. The large hook (21) hooks the lifting ring (10). The lifting ring (10) is connected to the standard penetration tester (16) to lift the standard penetration tester (6). When the lifting ring (10) is connected to the drill rod, the drill rod is pulled out.
2. The portable marking and penetration drilling machine according to claim 1, characterized in that: The middle part of the standard penetration test rod (11) is threaded through the top of the first standard penetration test hammer (13) and the second standard penetration test hammer (12) and connected to the lifting ring (10). The surface of the middle part of the standard penetration test rod (11) is provided with three guide grooves, and the bottom surface of the first standard penetration test hammer (13) is provided with three keys. The three guide grooves are adapted to the three keys.
3. The portable marking and penetration drilling machine according to claim 1, characterized in that: The lower end of the crank (18) is provided with a crank suspension screw shaft (19), which passes through the crank (18). The suspended part of the crank suspension screw shaft (19) is equipped with a bearing. The surface of the first standard penetration hammer (13) is welded with a standard penetration hammer cantilever (20), and the bearing is in rolling contact with the standard penetration hammer cantilever (20).
4. A portable marking and penetration drilling machine according to claim 1, characterized in that: A control system (24) is fixedly installed in the middle of the front side of the winch support (3). The control system (24) includes a multi-way hydraulic directional valve and an oil circuit. The drilling rig base (1) is movably connected to a power module. The power module includes a power unit and a hydraulic pump. The oil circuit is connected to the standard penetration motor (17) of the standard penetration (6) when the standard penetration (6) is hammered downwards. The oil circuit is connected to the winch motor (5) when the standard penetration (6) is pulled up. The power unit is connected to the hydraulic pump for transmission. The hydraulic pump is movably connected to the multi-way hydraulic valve through the oil circuit using a hydraulic quick connector.
Citation Information
Patent Citations
Safe standard penetration test device and test method
CN107152018A