Core barrel hammer system for improved core separation and extraction

Abstract

This invention relates to a core barrel hammer system for improving core separation and extraction. Specifically, it uses a ring-shaped rotating body equipped with a digging hammer to form a core. By using a pair of grabs installed on the rotating body, the bottom of the core can be cut off and easily pulled out from the ground in a clamped state, thereby significantly improving work efficiency.

Description

Technical Field

[0001] This invention relates to a core barrel hammer system with improved core separation and extraction functions. Specifically, it uses a ring-shaped rotating body equipped with a digging hammer to form a core. By using a pair of grabs installed on the rotating body, the bottom of the core can be cut off and the core can be easily pulled out from the ground in a clamped state, thereby significantly improving the efficiency of the core separation and extraction. Background Technology

[0002] Typically, in the construction of building and bridge foundations, special geological conditions such as weak foundations or rock strata require reinforcement treatment by installing piles composed of steel bars and other components (i.e., RCD construction method).

[0003] The aforementioned RCD construction method is a construction method that uses large-diameter (1000 mm and above) excavation operations.

[0004] A typical application involves connecting a drum stabilizer to the upper end of the drill pipe of the pile excavation machine, while a drill bit body with multiple drill bits connected in a circumferential direction is set at the lower part of the drill pipe. The drill bit body is pressurized and driven, which can realize the drilling operation of rock strata in one go.

[0005] In addition, a drum stabilizer is connected to the upper end of the drill pipe of the pile excavation machine, the tubular drill bit body is connected to the lower side of the drill pipe, and multiple drill bits are set at the lower end of the drill bit body. When the drum stabilizer rotates, the drill bit body rotates synchronously. The drill bit scrapes in the rock layer to form an annular groove. After the groove reaches the predetermined depth to form a rock core, it is removed, and the drilling operation is completed.

[0006] Among the aforementioned prior art, Korean Patent Registration No. (B1) 10-1508740 (April 7, 2015) discloses a core cylinder excavation hammer with core separation function, which has a rotating body at the upper end that is assembled and connected to the lower end of a rotating rod. The upper end of the rotating rod is connected to the drum stabilizer of the pile excavation machinery. The stabilizer is connected to a ring-shaped cross-section with an open cylindrical bottom, creating a core-forming space in the center of the mounting section. The mounting section contains two or more core drill bits for excavating the foundation, and a core-operating excavating hammer equipped with a suction pipe for discharging pulverized material to the surface. It includes two or more core cutting units, each equipped with a cutting hydraulic cylinder mounted axially vertically at the lower end of the mounting section; a cutting drill bit connected by a connecting rod of the cutting hydraulic cylinder, which, when the connecting rod is withdrawn, exposes itself towards the core-forming space and is pressed into the rock core; and a pressurizing device equipped with a pressurizing hydraulic cylinder mounted axially vertically at the upper end of the mounting section, and a pressurizing element connected to a rotating connecting rod of the pressurizing hydraulic cylinder, which, when the connecting rod is withdrawn, makes close contact with the borehole wall or the shell wall pressed into the borehole.

[0007] As another example, Korean Patent Registration No. (B1)10-2069282 (February 11, 2020) discloses a core barrel excavation hammer that achieves rock strata excavation and core cutting by changing the rotation direction. This device serves as a core cutting device for cutting multiple cores located at the lower end of the core forming space. By the action of the cutting cylinder, the cutting drill bit is pressurized under the action of the wedge-shaped component, or it has a core pressurization device that uses an air nozzle to achieve cutting, which is used when the core is pulled out.

[0008] The above-mentioned prior art is the result of the inventor's research and development. In actual field applications, since core cutting and clamping operations need to be performed separately, and the operation depends on whether the cylinder is working, there is a problem of low efficiency in core cutting and clamping operations.

[0009] In addition, since air or hydraulic pressure is required, corresponding auxiliary equipment must be provided. Summary of the Invention

[0010] Technical problems to be solved Based on this, the inventors have developed and implemented the present invention to address the various problems existing in the current core cylinder hammer system.

[0011] That is, the present invention is completed by setting multiple digging hammers on a ring-shaped rotating body driven by a drive shaft, so that when a rock core is formed by digging, the gripping direction conversion power transmission device installed on the rotating body can achieve forward and reverse drive. When the drive shaft is in the rising state and performing reverse operation, the gripper will apply pressure to the rock core. At this time, the lower end of the rock core is cut off by using the cutting drill bit or ultra-high pressure water nozzle equipped on the gripper and the cutting digging hammer, and the rock core is pulled upward.

[0012] Furthermore, the present invention uses a gripping drive cylinder mounted on a rotating body to pressurize the gripping component towards the rock core, causing the cutting drill bit or ultra-high pressure water nozzle or cutting excavation hammer mounted on the gripping component to cut the lower end of the rock core, ultimately achieving the technical solution of pulling the rock core upward, thus completing the present invention.

[0013] Furthermore, in this invention, when the drive shaft of the gripper, which is driven to rotate forward and reverse through the direction conversion power transmission device, is in the upward state for reverse operation, the gripper will be pressed towards the rock core. Simultaneously, by using the cutting drill bit or ultra-high pressure water nozzle equipped on the gripper, or the cutting excavation hammer, the lower end of the rock core is cut off, allowing the rock core to be smoothly pulled out to the ground. Meanwhile, in the descending state, it is driven forward again in a descending state, thereby expanding the borehole. By naturally lowering the anti-collapse protective casing along the outer surface of the rotating body, the technical solution effectively avoids safety hazards such as borehole collapse, thus completing this invention. Technical solution To achieve the aforementioned objective, in this invention, First, a core-collecting hammer system is characterized by comprising: a direction-converting power transmission device mounted on a power transmission unit, used to transmit power to the rotating body when the rotating shaft is moving downwards, to cut off the lower end of the core when the rotating shaft rotates in the opposite direction and rises, and to transmit power to the rotating body when the rotating shaft is moving upwards; a gripping adjustment bracket connected to the lower end of the rotating shaft; a pair of gripping members connected to the rotating body by fixing pins, with short rotating plates formed on the side connected to the fixing pins; and an operating linkage, with both ends fixed to the rotating plates formed on the gripping members and the gripping adjustment bracket.

[0014] Second, the direction-converting power transmission device includes: a drive clutch disposed on the rotating shaft; a lower driven clutch connected to the connecting housing, which engages with the drive clutch connected to the connecting housing when the rotating shaft is in a downward state, transmitting positive driving force to the rotating body, and having a core cutting section that cuts off the lower end of the core through a gripping member when the rotating shaft rotates in the opposite direction and moves upward; and an upper driven clutch that engages with the drive clutch to transmit power to the rotating body when the rotating shaft is in an upward state.

[0015] Third, the lower driven clutch and the upper driven clutch are connected by an anti-rotation disengagement guide device. Clutch plate embedding grooves are formed on the lower side of the lower driven clutch and the upper driven clutch, so that the drive clutch set on the rotating shaft can be embedded.

[0016] Fourth, the direction-converting power transmission device includes: a drive clutch mounted on the rotating shaft; a lower driven clutch connected to the connecting housing, which engages with the drive clutch connected to the connecting housing when the rotating shaft is in a downward state, transmitting positive driving force to the rotating body; and having a core-cutting section that cuts off the lower end of the core through a gripper when the rotating shaft rotates in the opposite direction and moves upward; an upper driven clutch that engages with the drive clutch to transmit power to the rotating body when the rotating shaft is in an upward state; and a lower driven clutch for expansion, with the connecting housing connected to the lower part of the lower driven clutch. When the rotating shaft is in a forward rotation state and moves downward, the gripper is exposed outside the rotating body, thereby expanding the borehole size to form a housing insertion space.

[0017] Fifth, the lower driven clutch, the upper driven clutch, and the lower driven clutch for expansion are interconnected by an anti-rotation disengagement guide device.

[0018] Sixth, a core cylinder hammer system comprising multiple excavating hammers on a ring-shaped rotating body driven by a rotating shaft for excavating and forming rock cores, characterized in that it includes: a pair of gripping members connected to the rotating body by a fixing pin, with a short rotating plate formed on the side connected to the fixing pin; and a gripping drive cylinder connected to the rotating plate formed on the gripping members for pushing or pulling the gripping members.

[0019] Seventh, a cutting drill bit is connected to the lower end of the gripper so as to cut off the lower end of the rock core.

[0020] Eighth, an ultra-high pressure water nozzle is installed at the lower end of the gripper to cut off the lower end of the rock core.

[0021] Ninth, a cutting excavator hammer is connected to the lower end of the gripper so that the lower end of the rock core can be cut off.

[0022] Tenth, an expansion digging hammer is attached to the lower end of the gripper to ensure that the housing can be inserted into the space.

[0023] Beneficial effects The core hammer system with improved core separation and extraction function provided by the present invention can achieve the following effects.

[0024] After the rock core is shaped by the excavating hammer mounted on the rotating body, the lower end of the rock core can be easily cut off using the gripping component.

[0025] When the rotating shaft moves upward, if the rotating body is rotated in the opposite direction, the gripper will apply pressure to the rock core, thereby cutting the rock core. In addition, by first raising the rotating body to the ground to pull out the rock core, and then moving the rotating shaft downward, the rock core extraction operation can be completed safely and quickly.

[0026] By rotating the gripper outward to the outside of the rotating body and using the expanding excavating hammer, the insertion space of the housing for separating the borehole wall can be effectively ensured, thereby effectively solving the problem of borehole collapse risk. Attached Figure Description

[0027] Figure 1 This is a cross-sectional structural diagram of the core cylinder hammer system with improved core separation and extraction functions provided by the present invention.

[0028] Figure 2 This is a top view of the present invention.

[0029] Figure 3 A perspective view of the directional conversion power transmission device provided by the present invention.

[0030] Figure 4 This is a cross-sectional view of the working state of the direction conversion power transmission device of the present invention.

[0031] Figure 5 A cutaway perspective view of another embodiment of the direction conversion power transmission device provided by the present invention.

[0032] Figure 6 This is a cross-sectional view of the working state of another embodiment of the direction conversion power transmission device of the present invention.

[0033] Figure 7 This is a perspective view of the combined state of the rotating shaft and the gripping adjustment bracket in this invention.

[0034] Figure 8 for Figure 7 Cross-sectional view.

[0035] Figure 9 This is a perspective view of a first embodiment of the gripper used in this invention.

[0036] Figure 10 for Figure 9 Cross-sectional view.

[0037] Figure 11 This is a cross-sectional view of a second embodiment of the gripper used in this invention.

[0038] Figure 12 This is a cross-sectional view of a third embodiment of the gripper used in this invention.

[0039] Figure 13 This is a cross-sectional view of the fourth embodiment of the gripper used in this invention. Detailed Implementation

[0040] The following describes a preferred embodiment of the core cylinder hammer system with improved core separation and extraction function provided by the present invention, in conjunction with the accompanying drawings.

[0041] Figure 1 This is a cross-sectional structural diagram of the core cylinder hammer system with improved core separation and extraction functions provided by the present invention. Figure 2 This is a top view of the present invention.

[0042] The core cylinder hammer system 1 with improved core separation and extraction function provided by the present invention is mainly used for drilling operations with a diameter of more than 1 meter. As can be seen from the drilling operation plane, the system adopts an upper closed ring rotating body 2 structure and is equipped with multiple digging hammers 3 driven by hydraulic or pneumatic pressure.

[0043] A power transmission section 4 is provided on the upper part of the rotating body 2 to transmit the rotational force provided by the rotating shaft 5 to the rotating body 2. A mud storage cylinder 6 is arranged on the upper side of the power transmission section 4 to discharge and store mud through a mud discharge pipe 7 connected to the rotating body 2.

[0044] The above structure is the typical structure of the core cylinder hammer system 1.

[0045] When constructing the core cylinder hammer system 1 with the above-mentioned structure, the present invention can easily provide the separation and extraction of core A.

[0046] Specifically, the present invention connects the upper end of the rotating body 2 to the lower end of the mud storage cylinder 6 through the connecting housing 8, and sets up a direction conversion power transmission device 9 inside the connecting housing 8. The connecting housing can transmit the driving force of the rotating shaft 5 passing through the mud storage cylinder 6 to the rotating body 2. When the rotating shaft 5 moves downward, the power transmission device transmits the driving force to the rotating body 2. When the rotating shaft 5 rotates upward in the opposite direction, the lower end of the rock core A is cut off. When the rotating shaft 5 moves upward, the power transmission part 4 is used to transmit power to the rotating body 2.

[0047] Furthermore, a gripping adjustment bracket 10 located inside the connecting housing 8 is connected to the lower end of the rotating shaft 5, and a pair of gripping parts 11 symmetrically distributed on the rotating body 2 are fixed by a fixing pin 12. A short rotating plate 11a is formed on the side connected to the fixing pin 12. By connecting the rotating plate 11a on the gripping part 11 to the gripping adjustment bracket 10 through an operating link 13, when the rotating shaft 5 moves upward, the operating link 13 is forced to drive the fixing pin 12 to move the lower end of the gripping part 11 inward toward the rock core A with itself as the center, thereby cutting off the lower end of the rock core A. At the same time, the action of pulling out to the ground is completed while supporting the lower end of the cut rock core A. When in the ground pulling-out state, the rock core A pulled out from the gripping part 11 can be separated and discharged by moving the rotating shaft 5 downward.

[0048] Figure 3 This is a perspective view of the direction conversion power transmission device provided by the present invention. Figure 4 This is a cross-sectional view of the working state of the direction conversion power transmission device of the present invention.

[0049] In this invention, the direction conversion power transmission device 9 located on the power transmission section 4 is as described above. When the rotating shaft 5 moves downward, it can transmit power to the rotating body 2. When the rotating shaft 5 rotates upward in the opposite direction, it can cut off the lower end of the rock core A. When the rotating shaft 5 moves upward, it can still continuously transmit power to the rotating body 2.

[0050] Specifically, in this invention, the power transmission unit 4 has the rotating shaft 5 positioned at the center of the connecting housing 8, which is used to connect the rotating body 2 and the mud storage cylinder 6.

[0051] The lower end of the rotating shaft 5 is connected to the gripping adjustment bracket 10 by free rotation, and a drive clutch 9a is installed on its upper side and the rotating shaft 5.

[0052] The connecting housing 8 has a lower driven clutch 9b and an upper driven clutch 9d on its inner side. When the drive clutch 9a is in a downward position, it is connected to the lower driven clutch 9b. When the drive clutch 9a is in an upward position, it is connected to the upper driven clutch 9d. At this time, the lower driven clutch 9b and the upper driven clutch 9d are connected to each other by an anti-rotation disengagement guide device 9f, thereby maintaining a stable position when the drive clutch 9a rises or falls.

[0053] The drive clutch 9a is integrally connected to the rotating shaft 5 and adopts a structure of four clutch plates 9a-1 arranged at a 90-degree angle. The lower driven clutch 9b and the lower driven clutch 9d are formed by four driven clutch plates 9b-1 and 9d-1 arranged at a 90-degree angle, with clutch plate embedding grooves 9b-2 and 9d-2 formed on their lower sides. This ensures that when the rotating shaft 5 rotates the drive body 2, it can achieve smooth clockwise rotation. At this time, the drive clutch 9a and the rotating shaft 5 of the upper driven clutch 9b and the lower driven clutch 9d are separated at 30 to 60 degrees, preferably at 45 degrees in forward or reverse rotation.

[0054] The lower driven clutch 9b and the upper driven clutch 9d are designed with different thicknesses.

[0055] Specifically, the upper driven clutch 9d only needs to be simply engaged with the drive clutch 9a to achieve the function of power transmission, so the structure is relatively thin. The lower driven clutch 9b, on the other hand, needs to embed the clutch plate 9a-1 of the drive clutch 9a into the clutch plate embedding groove 9b-2. The digging operation is achieved by rotating the drive body 2. By rotating the rotating shaft 5 in the opposite direction, the clutch plate 9a-1 is separated from the clutch plate embedding groove 9b-2. When the anti-rotation disengagement guide device 9f is in contact with the clutch plate 9a-1 of the drive clutch 9a, the lower end of the rock core A is cut off by the gripping member 11 while rotating and moving slowly upward, thus forming a thick rock core cutting section 9c.

[0056] The upper driven clutch 9d is located below the mud discharge plate 6a located at the bottom of the mud storage cylinder 6 in the rising state, and a mud discharge hole 6b is formed on its side.

[0057] Figure 5 This is a cutaway perspective view of another embodiment of the direction-converting power transmission device provided by the present invention. Figure 6 This is a cross-sectional view of the working state of another embodiment of the direction conversion power transmission device of the present invention.

[0058] In another embodiment of the direction conversion power transmission device 9 provided by the present invention, as shown in the figure, The inner side of the connecting housing has a lower driven clutch 9b and an upper driven clutch 9d. When the drive clutch 9a is in the downward position, it is connected to the lower driven clutch 9b. When the drive clutch 9a is in the upward position, it is connected to the upper driven clutch 9d. An expansion lower driven clutch 9e is formed below the lower driven clutch 9b, so that when the rotating shaft 5 rotates in the forward direction, the rotating shaft 5 is moved downward by applying pressure. At this time, the gripper 11 will be exposed outside the rotating body 2, thereby expanding the borehole and forming a casing insertion space B for preventing well wall collapse. The expansion lower driven clutch 9e is connected to the connecting housing 8. At this time, the lower driven clutch 9b, the upper driven clutch 9d and the expansion lower driven clutch 9e are connected to each other by an anti-rotation disengagement guide device 9f, so that the drive clutch 9a can maintain a fixed position when it rises or falls.

[0059] As described above, when the lower driven clutch 9e for expansion is further configured, when the drive clutch 9a with the rotating shaft 5 at the lowest end is engaged with the lower driven clutch 9e for expansion, the gripping part 11 will maintain a state of rotating outward of the rotating body 2. In this state, the digging hammer 11f for expansion installed at the lower end of the gripping part 11 starts to work. By digging the outer part of the rotating body 2, the insertion space B of the anti-collapse shell is ensured, so that the descending anti-collapse shell can descend naturally. Even if the rotating body 2 is lifted from the ground to pull out the rock core A, the risk of collapse of the borehole can be effectively eliminated.

[0060] Figure 7 This is a perspective view of the combined state of the rotating shaft and the gripping adjustment bracket in this invention. Figure 8 for Figure 7 Cross-sectional view.

[0061] In this invention, as the rotating shaft 5 moves down and up, the gripper 11 will move outward or inward. This invention ensures that the above operation can be carried out smoothly by setting a gripping adjustment bracket 10 between the rotating shaft 5 and the gripper 11.

[0062] As shown in the figure, the gripping adjustment bracket 10 has a variety of structures. The lower two sides of the bracket are connected to the operating rods 13, which are connected to the gripping member 11, by pins. The upper part is provided with a shaft connection device 14. As shown in the figure, the gripping adjustment bracket 10 is presented in the form of a triangular structure.

[0063] The shaft connecting device 14 forms a disc-shaped connecting port 14a at the lower end of the rotating shaft 5, and a connecting port housing 14b for accommodating the connecting port 14a is formed at the upper end of the gripping adjustment bracket 10.

[0064] The connector housing 14b forms a disc-shaped groove 14b-1 for accommodating the connector 14a, and includes a fixing plate 14b-2 that separates from above, thereby enabling the connector 14a to rotate inside.

[0065] Figure 9 This is a perspective view of the first embodiment of the gripper used in this invention. Figure 10 for Figure 9 Cross-sectional view.

[0066] The gripping component 11 provided by this invention adopts a paired arc-shaped structure design, with its diameter gradually narrowing from bottom to top, presenting an arc-shaped configuration similar to the rotating body 2 when viewed from a planar perspective. A support shaft 11b connected to the rotating body 2 is provided at the upper center and is connected via a fixing pin 12. A rotating plate 11a is formed on the lower inner side of the support shaft 11b. This rotating plate 11a is fixed to the lower end of the operating linkage 13 connected to the upper end of the gripping adjustment bracket 10 via a pin, thereby realizing the rotation function.

[0067] The gripper 11 configured as described above is such that the operating link 13 presses the rotating plate 11a downward to keep it in an outward open state, and when the operating link 13 pulls the rotating plate 11a upward, it will clamp inward and hold the lower end of the rock core A.

[0068] On the other hand, the lower end of the gripper 11 is provided with an inwardly installed cutting drill bit 11c or an ultra-high pressure water nozzle 11d. When the gripper 11 moves inward toward the rock core A, it can realize the function of circumferentially cutting the lower end of the rock core A.

[0069] Figure 11 This is a cross-sectional view of a second embodiment of the gripper used in this invention.

[0070] In the second embodiment of the gripper 11 used in this invention, by providing a cutting excavation hammer 11e at the lower end of the gripper 11, the lower end of the rock core A can be excavated and cut along the circumferential direction.

[0071] At this time, for the excavating hammer 3, the gripper 11 can be installed on its inner or outer side. An embodiment of the present invention is shown in which the gripper 11 is installed on its outer side.

[0072] Figure 12 This is a cross-sectional view of a third embodiment of the gripper used in this invention.

[0073] In the third embodiment of the gripper 11 used in this invention, the gripper 11 is driven by the gripping drive cylinder 15 to achieve inward or outward movement.

[0074] Unlike the aforementioned method of using the gripping adjustment bracket 10 and operating linkage 13 to drive the gripping component 11 when rising via the rotating shaft 5, this device uses the piston rod of the gripping drive cylinder 15 mounted on the rotating body 2 for connection.

[0075] When the gripping drive cylinder 15 is installed in the manner described above, the gripping drive cylinder 15 presses downward to make the rotary plate 11a open outward. When the gripping drive cylinder 15 pulls the rotary plate 11a upward, its inward clamping action will hold the lower end of the rock core A.

[0076] By employing the improved core separation and extraction function of the core hammer system 1 provided by the present invention, the direction conversion power transmission device 9 located in the power transmission section 4 drives the gripper 11 synchronously by means of the lifting and lowering motion of the rotating shaft 5, as described above, thereby achieving the cutting of the lower end of the core A and completing the discharge operation in the extraction state.

[0077] According to the operation process of the present invention, the rotating shaft 5 must first be moved downward to achieve forward rotation.

[0078] As described above, when the rotating shaft 5 rotates in the forward direction, the drive clutch 9a set on the rotating shaft 5 will connect with the lower driven clutch 9b connected to the lower part of the housing 8, thereby rotating the drive body 2. During this process, the digging hammer 3 installed on the rotating body 2 will perform drilling operations, and finally form the rock core A.

[0079] After completing core A, rotate the rotating shaft 5 counterclockwise by about 45 degrees to disengage the drive clutch 9a from the lower driven clutch 9b. Then move the rotating shaft 5 upward to guide it to the anti-rotation disengagement guide device 9f.

[0080] As described above, when the rotating shaft 5 moves upward, the drive clutch 9a will be located at the cut-off section 9c of the lower driven clutch 9b. At this time, if the rotating drive shaft 5 rotates forward or backward, the clutch located at the lower end of the gripper 11 will... The cutting drill bit 11c or the ultra-high pressure water nozzle 11d will cut off the lower end of the rock core A.

[0081] As described above, when rock core A is in the cut-off state, moving the rotating shaft 5 upward will engage the drive clutch 9a with the upper driven clutch 9a mounted on the upper end of the connecting housing 8. At this time, rock core A has been cut off by the gripper 11 and can be pulled out to the ground. Subsequently, moving the rotating shaft 5 downward in the pulled-out state will cause the gripper 11 to discharge the cut-off rock core A, which is in the clamping state, from the rotating body 2.

[0082] As described above, when rotating the rotating shaft 5 forward with the rock core A discharged, the drive clutch 9a on the rotating shaft 5 will connect with the driven clutch 9b at the lower part of the connecting housing 8, thereby keeping the gripper 11 in an outward moving state. In this state, continuous excavation can be achieved by simply moving the rotating body 2 down to the excavation position and repeating the above operation process.

[0083] Figure 13 This is a cross-sectional view of the fourth embodiment of the gripper used in this invention.

[0084] The gripper provided in the fourth embodiment of the present invention has the same structure as the gripper described in the first to third embodiments, except that an expansion digging hammer 11f is added to the lower end of the gripper. By further employing the expansion digging hammer 11f, when the rotating shaft 5 extends downward to its lowest point, the drive clutch 9a and the expansion lower driven clutch 9e are engaged, and the expansion digging hammer 11f can effectively ensure that the housing is inserted into the space B during operation.

[0085] While specific embodiments have been described in the detailed description of this invention, various modifications can be made without departing from the scope of the invention. Therefore, the scope of protection of this invention should not be limited to the described embodiments, but should be determined by the following claims and their equivalents.

[0086] [In the picture] 1: Core hammer system (for improved core separation and extraction); 2: Rotating body; 3: Excavating hammer; 4: Power transmission unit; 5: Rotating shaft; 6: Mud storage cylinder; 6a: Mud discharge plate; 6b: Mud discharge hole; 7: Mud discharge pipe; 8: Connecting housing; 9: Directional conversion power transmission device; 9a: Drive clutch; 9b: Lower driven clutch; 9b-1, 9d-1: Driven clutch discs; 9b-2, 9d-2: Clutch disc embedded grooves; 9c: Core cutting section; 9d: Upper driven clutch; 9e: Lower driven clutch for expansion; 9f: 10: Anti-rotation detachment guide device; 11: Gripping adjustment bracket; 11: Gripping component; 11a: Rotary vane; 11b: Support shaft; 11c: Cutting drill bit; 11d: Ultra-high pressure water nozzle; 11e: Cutting digging hammer; 11f: Spreading digging hammer; 12: Fixing pin; 13: Operating linkage; 14: Shaft connection device; 14a: Connection port; 14b: Connection port housing; 14b-1: Groove; 14b-2: Fixing plate; 15: Gripping drive cylinder; A: Rock core; B: Insertion space; C: Housing.

Claims

1. A core barrel hammer system with improved core separation and extraction function, comprising multiple excavating hammers (3) mounted on a ring-shaped rotating body (2) driven by a rotating shaft (5) to excavate and form a core (A), and storing the excavated mud in an upper mud storage cylinder (6), characterized in that, include: The direction conversion power transmission device (9) is installed on the power transmission part (4) and is used to transmit power to the rotating body (2) when the rotating shaft (5) moves downward, cut off the lower end of the rock core (A) when the rotating shaft (5) rotates in the opposite direction and rises, and transmit power to the rotating body (2) when the rotating shaft (5) moves upward. Grasp the adjustment bracket (10) and engage it with the lower end of the rotating shaft (5); A pair of gripping parts (11) are connected to the rotating body (2) via a fixing pin (12), and a short rotating plate (11a) is formed on the side connected to the fixing pin (12); and The operating linkage (13) is fixed at both ends to the rotary plate (11a) and the gripping adjustment bracket (10) formed on the gripping member (11).

2. The core cylinder hammer system with improved core separation and extraction function according to claim 1, characterized in that, The direction-converting power transmission device (9) includes: A drive clutch (9a) is mounted on a rotating shaft (5); The lower driven clutch (9b) is connected to the connecting housing (8). When the rotating shaft (5) is in a downward state, the drive clutch (9a) connected to the connecting housing (8) is engaged to transmit a positive driving force to the rotating body (2). When the rotating shaft (5) rotates in the opposite direction and moves upward, it has a core cutting section (9c) that cuts off the lower end of the core (A) through the gripper (11); and The upper driven clutch (9d) engages with the drive clutch (9a) to transmit power to the rotating body (2) when the rotating shaft (5) is in an upward moving state.

3. The core cylinder hammer system with improved core separation and extraction function according to claim 2, characterized in that, The lower driven clutch (9b) and the upper driven clutch (9d) are connected by an anti-rotation disengagement guide device (9f). Clutch disc insertion grooves (9b-2, 9d-2) are formed on the lower driven clutch (9b) and the upper driven clutch (9d) so that the drive clutch (9a) provided on the rotating shaft (5) can be inserted.

4. The core cylinder hammer system with improved core separation and extraction function according to claim 1, characterized in that, The direction-converting power transmission device (9) includes: Drive clutch (9a) is mounted on rotating shaft (5); The lower driven clutch (9b) is connected to the connecting housing (8). When the rotating shaft (5) is in the downward state, the drive clutch (9a) connected to the connecting housing (8) is connected to transmit positive driving force to the rotating body (2). When the rotating shaft (5) rotates in the opposite direction and moves upward, it has a core cutting section (9c) that cuts off the lower end of the core (A) by the gripper (11). The upper driven clutch (9d) engages with the drive clutch (9a) to transmit power to the rotating body (2) when the rotating shaft (5) is in an upward moving state; and The expansion lower driven clutch (9e), connected to the housing (8), is located below the lower driven clutch (9b). When the rotating shaft (5) moves downward in the forward rotation state, the gripper (11) is exposed to the outside of the rotating body (2), thereby expanding the borehole size to form the housing insertion space (B).

5. The core cylinder hammer system with improved core separation and extraction function according to claim 4, characterized in that, The lower driven clutch (9b), the upper driven clutch (9d), and the expansion lower driven clutch (9e) are interconnected by an anti-rotation disengagement guide device (9f).

6. A core barrel hammer system with improved core separation and extraction function, comprising multiple excavating hammers (3) mounted on a ring-shaped rotating body (2) driven by a rotating shaft (5) for excavating to form a core (A), characterized in that, include: A pair of gripping parts (11) are connected to the rotating body (2) via a fixing pin (12), and a short rotating plate (11a) is formed on the side connected to the fixing pin (12); and A gripping drive cylinder (15) is connected to a rotary plate (11a) formed on the gripper (11) and is used to push or pull the gripper (11).

7. The core cylinder hammer system with improved core separation and extraction function according to claim 1 or 6, characterized in that, A cutting drill bit (11c) is connected to the lower end of the gripper (11) so as to cut off the lower end of the core (A).

8. The core cylinder hammer system with improved core separation and extraction function according to claim 1 or 6, characterized in that, An ultra-high pressure water nozzle (11d) is installed at the lower end of the gripper (11) so that the lower end of the core (A) can be cut off.

9. The core cylinder hammer system with improved core separation and extraction function according to claim 1 or 6, characterized in that, A cutting excavator (11e) is connected to the lower end of the gripper (11) so that the lower end of the core (A) can be cut off.

10. The core cylinder hammer system with improved core separation and extraction function according to claim 1 or 6, characterized in that, An expansion digging hammer (11f) is attached to the lower end of the gripper (11) to ensure that the housing is inserted into the space (B).

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