Hydraulic impact type ring anchor installer

Abstract

This invention discloses a hydraulic impact-type annular anchor installer, comprising an installation cylinder and an annular anchor. The top of the installation cylinder is closed, and a lifting section is provided on the outer surface of the top of the installation cylinder for detachable connection to a lifting cable. A hydraulic impactor is provided in the upper part of the installation cylinder, and an anvil is located inside the installation cylinder and abuts against the impact end of the hydraulic impactor to receive and transmit impact. At least one pair of symmetrically arranged limiting grooves are provided on the lower inner wall of the installation cylinder, extending along the vertical axis of the installation cylinder. A vertically arranged impact-bearing plate is fixed in the middle of the inner wall of the annular anchor cylinder, and both ends of the impact-bearing plate are fixedly connected to the inner wall of the annular anchor cylinder. The impact-bearing plate and the limiting groove are slidably inserted into each other along the axial direction, and the top of the impact-bearing plate abuts coaxially with the bottom surface of the anvil. The hydraulic impact-type annular anchor installer provided by this invention has the advantages of small equipment size and adaptability to various strata.

Description

Technical Field

[0001] This invention relates to the field of marine engineering equipment technology, and in particular to a hydraulic impact-type annular anchor installer. Background Technology

[0002] With the advent of the wave of marine new energy development, the large-scale deployment of offshore infrastructure equipment such as offshore wind power, deep-sea oil and gas extraction, and wave energy has placed higher demands on the technical performance, economic efficiency, and ease of construction of marine structure foundation anchoring. Currently, deep-sea areas have become important battlegrounds for clean energy development, and floating platforms (such as floating wind turbines) are gradually replacing traditional fixed foundations, becoming the mainstream equipment type. The safe and stable operation of a platform hinges on the design and installation process of its anchoring system. While traditional suction anchors, pile anchors, and towed anchors are mature technologies, they suffer from problems such as large steel consumption, high costs, and long construction periods. Lightweight ring anchors, due to their lower steel consumption, compact structure, adaptability to shared anchor points, and excellent mechanical properties, have become the development direction for new anchoring foundations. Currently, the engineering installation of ring anchors mainly adopts suction-type penetration technology. Although hydraulic impact hammers have advantages such as small size, environmental friendliness, and adaptability to complex geological formations, they have not yet been integrated with the ring anchor installation process. The ring-anchor suction installation method results in a large equipment size due to the need to provide sufficient negative pressure suction, making transportation and deployment difficult. Long-distance deep-water operations also incur high logistics costs, hindering large-scale deployment. Furthermore, it has poor geological adaptability, only suitable for soft soil strata. Penetration in hard clay, sand, layered soil, and soft rock strata is ineffective, failing to achieve the designed burial depth. Construction stability is insufficient, easily affected by water flow and waves, generating significant construction noise and causing severe disturbance to the seabed, damaging the marine ecosystem. The equipment also requires high sealing and safety standards, involves complex construction processes, and carries high construction risks. Summary of the Invention

[0003] This invention is based on the inventor's discoveries and understanding of the following facts and problems:

[0004] Suction-type installation has its drawbacks.

[0005] The present invention aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, embodiments of the present invention provide a hydraulic impact-type annular anchor installer, comprising an installation cylinder and an annular anchor. The top of the installation cylinder is closed, and a lifting part is provided on the outer surface of the top of the installation cylinder for detachable connection with a lifting cable. A hydraulic impactor is provided in the upper part of the interior of the installation cylinder, and an anvil is located inside the installation cylinder and abuts against the impact end of the hydraulic impactor to receive and transmit impact. At least one pair of symmetrically arranged limiting grooves are provided on the lower inner wall of the installation cylinder, and the limiting grooves extend along the vertical axis of the installation cylinder. The annular anchor is a cylinder with openings at the top and bottom. A vertically arranged impact plate is fixed in the middle of the inner wall of the body, and both ends of the impact plate are fixedly connected to the inner wall of the cylinder of the annular anchor. The impact plate and the limiting groove are slidably inserted into each other along the axial direction to achieve coaxial alignment and guidance between the mounting cylinder and the annular anchor. The top of the impact plate abuts coaxially with the bottom surface of the anvil to transmit the impact force of the hydraulic impactor to the annular anchor. An inlet pipe and an outlet pipe are provided at the top of the mounting cylinder. One end of the inlet pipe passes through the top cover of the mounting cylinder and is connected to the inlet of the hydraulic impactor. The outlet pipe is connected to the pressure relief outlet of the hydraulic impactor to form a hydraulic power circulation pipeline.

[0007] The present invention has the advantages of small equipment size and adaptability to various geological formations, and has technical effects.

[0008] In some embodiments, a partition is further included, which is located between the hydraulic impactor and the anvil inside the mounting cylinder. The partition separates the mounting cylinder into a power chamber and a working chamber. The hydraulic impactor is located in the power chamber, and the anvil is located in the working chamber. The limiting groove is connected to the working chamber.

[0009] In some embodiments, the impact plate is arranged inside the cylinder of the annular anchor along the axial direction of the cylindrical body, and both ends of the impact plate are respectively connected to the inner wall of the cylinder, and the thickness of the impact plate is adapted to the width of the limiting groove.

[0010] In some embodiments, the annular anchor is a cylinder with openings at the top and bottom, and at least one anchor eye is provided on the side wall of the cylinder, the anchor eye protruding from the side surface of the cylinder.

[0011] In some embodiments, the hoisting unit includes at least two symmetrically arranged lifting lugs, and the lifting lugs are provided with lifting holes for the hoisting steel cable to pass through.

[0012] In some embodiments, the limiting groove extends to the bottom of the mounting cylinder to form an opening, the opening having a guiding ramp to allow the impact plate to enter the limiting groove.

[0013] In some embodiments, the annular anchor has a protrusion at one end of its cylinder away from the mounting cylinder. The protrusion has a triangular cross-section and two inclined surfaces extending toward the inner and outer walls of the mounting cylinder, respectively.

[0014] In some embodiments, a flow regulating valve is also included, which is disposed on the inlet pipe to regulate the impact frequency and single impact energy of the hydraulic impactor.

[0015] In some embodiments, at least two of the impact plates intersect each other, the intersection of the impact plates is located on the axis of the annular anchor, and the number of the limiting grooves corresponds to the number of the ends of the impact plates.

[0016] In some embodiments, a stop is provided at the top of the limiting groove, the stop being used to axially limit the top of the bearing plate.

[0017] The advantages of this application are as follows: the installation cylinder with hydraulic impactor, anvil, limiting groove, and closed-loop hydraulic pipeline is coaxially fitted with the annular anchor with impact plate, realizing the hydraulic impact penetration installation of the annular anchor. This reduces equipment volume, transportation and construction costs, overcomes installation limitations in complex hard strata such as hard clay and dense sand, ensures coaxial and uniform transmission of impact load, and improves the installation efficiency and construction stability of the annular anchor. A partition is set between the hydraulic impactor and the anvil to divide the interior of the installation cylinder into a power chamber and a working chamber, which can prevent soil impurities from entering the power chamber, protect the hydraulic impactor, and isolate impact vibration. The impact plate is arranged along the axial direction of the annular anchor, connected to the inner wall of the cylinder at both ends, and its thickness is adapted to the width of the limiting groove, ensuring smooth insertion of the impact plate and the limiting groove, achieving coaxial alignment, avoiding impact eccentricity, and improving the impact force transmission efficiency. Anchor eyes are set on the side wall of the annular anchor cylinder to facilitate subsequent construction of the mooring anchor chain and avoid interference between the anchor chain and the cylinder during mooring. The lifting part uses lifting lugs to ensure balanced force during the lifting process and prevent the installation cylinder from tilting. The limiting groove features an opening with a guiding slope, reducing the difficulty of aligning the impact plate with the limiting groove, enabling rapid docking in underwater environments and improving assembly efficiency. A protruding section at the bottom of the annular anchor cuts through the soil via a bidirectional slope, reducing penetration resistance and minimizing disturbance to the surrounding seabed, thus improving penetration efficiency. A flow regulating valve on the inlet pipe allows for control of the impact frequency and single-impact energy of the hydraulic impactor by adjusting the high-pressure liquid flow, adapting to the penetration requirements of different geological strata. At least two impact plates are arranged crosswise, with the intersection point located on the axis of the annular anchor, and the number of limiting grooves matching the number of impact plate ends. This achieves multi-point symmetrical transmission of impact loads, improving the coaxiality and uniformity of force distribution during anchor penetration and preventing anchor tilting. A stop at the top of the limiting groove provides reliable axial restraint to the top of the impact plate, preventing vertical movement of the impact plate during impact and ensuring stable transmission of impact force. Attached Figure Description

[0018] Figure 1This is a structural schematic diagram of a hydraulic impact type annular anchor installer according to an embodiment of the present invention.

[0019] Figure 2 This is a structural schematic diagram of the hoisting part at the top of the hydraulic impact type annular anchor installer according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the limiting groove of the hydraulic impact type annular anchor installer according to an embodiment of the present invention.

[0021] Figure 4 This is a structural schematic diagram of the limiting groove of the hydraulic impact type annular anchor installer according to an embodiment of the present invention from another angle.

[0022] Figure 5 This is a schematic diagram of the internal structure of the hydraulic impact type annular anchor installer according to an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the annular anchor and anchor eye of the hydraulic impact type annular anchor installer according to an embodiment of the present invention.

[0024] Reference numerals in the attached drawings: 1. Installation cylinder; 2. Impactor; 3. Anvil; 4. Annular anchor; 5. Limiting groove; 6. Impact plate; 7. Lifting part; 8. Lifting cable; 9. Inlet pipe; 10. Outlet pipe; 11. Baffle plate; 12. Anchor eye. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] An embodiment of the present invention provides a hydraulic impact type annular anchor 4 installer, including an installation cylinder 1 and an annular anchor 4. The top of the installation cylinder 1 is closed, and a lifting part 7 is provided on the outer surface of the top of the installation cylinder 1. The lifting part 7 is used to detachably connect to a lifting steel cable 8. A hydraulic impactor 2 is provided in the upper part of the interior of the installation cylinder 1. An anvil 3 is located inside the installation cylinder 1 and abuts against the impact end of the hydraulic impactor 2 to receive and transmit the impact. At least one pair of symmetrically arranged limiting grooves 5 are provided on the lower inner wall of the installation cylinder 1. The limiting grooves 5 extend along the vertical axis of the installation cylinder 1. The annular anchor 4 is a cylinder with openings at the top and bottom. A vertically arranged impact plate 6 is fixed in the middle of the wall, and both ends of the impact plate 6 are fixedly connected to the inner wall of the cylinder of the annular anchor 4. The impact plate 6 and the limiting groove 5 are slidably inserted into each other along the axis to achieve coaxial alignment and guidance between the mounting cylinder 1 and the annular anchor 4. The top of the impact plate 6 and the bottom surface of the anvil 3 are coaxially abutted to transmit the impact force of the hydraulic impactor 2 to the annular anchor 4. An inlet pipe 9 and an outlet pipe 10 are provided at the top of the mounting cylinder 1. One end of the inlet pipe 9 passes through the top cover of the mounting cylinder 1 and is connected to the inlet of the hydraulic impactor 2. The outlet pipe 10 is connected to the pressure relief outlet of the hydraulic impactor 2 to form a hydraulic power circulation pipeline.

[0027] Specifically, the sealed top of the installation cylinder 1 prevents seawater from entering the cylinder during deep-water operations, protecting internal components such as the hydraulic impactor 2 from seawater corrosion and impurities, and ensuring stability during underwater operations. The lifting section 7 on the top outer surface is detachably connected to the lifting cable 8, enabling rapid lifting, lowering, and retrieval of the entire installation unit, adapting to offshore lifting operations and improving construction efficiency. The hydraulic impactor 2 in the upper part of the installation cylinder 1, in conjunction with the anvil 3, transfers the high-frequency vertical impact load to the annular anchor 4, reducing energy loss and improving the utilization rate of impact energy. This replaces the traditional negative pressure suction penetration method and is suitable for various complex geological conditions such as hard clay, dense sand, and layered soil. Symmetrically arranged limiting grooves 5 extending along the vertical axis on the lower inner wall of the installation cylinder 1 axially engage with the impact-bearing plate 6 fixed to the inner wall of the annular anchor 4, achieving coaxial alignment and vertical guidance between the installation cylinder 1 and the annular anchor 4. This prevents the anchor body of the annular anchor 4 from tilting during impact penetration, ensuring uniform transmission of the impact load along the anchor body axis and preventing structural damage and insufficient penetration accuracy due to uneven loading. The annular anchor 4 is a cylindrical structure with openings at the top and bottom, which reduces shear disturbance to the surrounding soil during penetration and lowers the soil resistance to the anchor. The thin-walled structure of the cylinder reduces the amount of steel used in the anchor, achieving lightweight design and reducing transportation and hoisting costs. The inlet pipe 9 and outlet pipe 10, located at the top of the mounting cylinder 1, connect to the inlet and pressure relief outlet of the hydraulic impactor 2, respectively, forming a closed-loop hydraulic power circulation pipeline. This provides a stable high-pressure power source for the hydraulic impactor 2. At the same time, the pipeline runs through the top to avoid friction damage between the pipeline and the soil during underwater penetration, improving the reliability and safety of the hydraulic system.

[0028] The advantages and technical effects brought about by the independent claims according to the embodiments of the present invention.

[0029] In some embodiments, a partition 11 is also included. The partition 11 is located between the hydraulic impactor 2 and the anvil 3 inside the mounting cylinder 1. The partition 11 separates the power chamber and the working chamber formed inside the mounting cylinder 1. The hydraulic impactor 2 is located in the power chamber, the anvil 3 is located in the working chamber, and the limiting groove 5 is connected to the working chamber.

[0030] Specifically, the partition 11 horizontally divides the internal space of the mounting cylinder 1 into two independent power chambers and a working chamber. The hydraulic impactor 2 is located in the upper power chamber, while the anvil 3 and the limiting groove 5 connecting to the outside are located in the working chamber. The partition 11 extends horizontally. The partition 11 physically blocks soil debris, mud, and seawater generated during operation from entering the power chamber, preventing wear and jamming of the hydraulic impactor 2, extending its service life, and reducing the risk of equipment failure. The partition 11 weakens the transmission of high-frequency impact vibration from the anvil 3 to the power chamber, preventing the piping and sealing structure of the hydraulic impactor 2 from loosening and failing due to vibration, thus ensuring more reliable sealing. As a transverse reinforcing structure inside the mounting cylinder 1, the partition 11 increases the radial stiffness of the cylinder, preventing deformation under high-frequency impact, constraining the impact load to be stably transmitted along the vertical axis, reducing energy loss caused by radial force, and improving the efficiency of impact energy transmission. The limiting groove 5 completes the insertion, impact and separation with the impact plate 6 within the closed guide space formed by the partition 11, avoiding interference from external water flow and soil on the mating surface and improving operational stability.

[0031] Optionally, a flushing channel can be provided inside the partition 11. The flushing channel can use the pressure relief medium of the hydraulic impactor 2 to continuously flush the mating surface to remove soil impurities and form a slight positive pressure in the working chamber to prevent seawater and mud from seeping in.

[0032] In some embodiments, the impact plate 6 is arranged in the cylinder of the annular anchor 4 along the axial direction of the cylindrical body, and the two ends of the impact plate 6 are respectively connected to the inner wall of the cylinder. The thickness of the impact plate 6 is adapted to the groove width of the limiting groove 5.

[0033] Specifically, the impact plate 6 is arranged along the axial direction of the cylindrical ring anchor 4. The two ends of the impact plate 6 are firmly connected to the inner wall of the cylinder so that the impact load is transmitted along the axial direction of the anchor body. This can avoid local stress concentration that could cause structural deformation or damage. The thickness of the impact plate 6 is matched with the width of the limiting groove 5 to ensure that the impact plate 6 and the limiting groove 5 slide and insert along the axial direction, maintain the coaxial alignment of the installation cylinder 1 and the annular anchor 4, eliminate radial offset and jamming during the impact process, improve the transmission efficiency of impact energy, and reduce friction loss of the mating surfaces.

[0034] Optionally, a wear-resistant coating can be applied to the top surface of the impact plate 6 and the inner wall of the limiting groove 5 to enhance the performance of the impact contact surface and reduce some of the sliding resistance.

[0035] In some embodiments, the annular anchor 4 is a cylinder with openings at the top and bottom, and at least one anchor eye is provided on the side wall of the cylinder, with the anchor eye protruding from the side surface of the cylinder.

[0036] Specifically, the annular anchor 4 is a cylindrical structure with openings at the top and bottom, allowing soil to flow along the interior of the cylinder during penetration, reducing anchor sinking resistance and minimizing disturbance to the seabed. Anchor holes protruding from the sidewall of the cylinder are located away from the mating area between the cylinder 1 and the annular anchor 4, providing ample space for mooring connection operations. This protruding structure facilitates the connection of mooring components such as anchor chains, adapts to operational needs, avoids interference between mooring components and the outer wall of the cylinder, and ensures stable mooring connections.

[0037] Optionally, multiple protruding anchor holes can be arranged in a staggered manner along the circumference and axis of the cylinder to accommodate the transmission requirements of mooring loads in multiple directions.

[0038] In some embodiments, the lifting section 7 includes at least two symmetrically arranged lifting lugs, and the lifting lugs are provided with lifting holes for the lifting steel cable 8 to pass through.

[0039] Specifically, the lifting section 7 employs two symmetrically arranged lifting lugs, ensuring a uniform distribution of the lifting load along the vertical axis of the installation cylinder 1. This facilitates maintaining the stability of the equipment throughout the lifting, lowering, and retrieval process, preventing tilting or displacement of the cylinder. The lifting holes on the lugs provide fixing points for the lifting cables 8, enabling quick and detachable connection between the lifting components and the installation cylinder 1, adapting to offshore lifting equipment operation procedures. The symmetrical lifting lugs disperse localized stress in the lifting section 7, enhancing overall load-bearing capacity and impact resistance, and ensuring the safety of lifting operations in complex deep-water conditions.

[0040] In some embodiments, the limiting groove 5 extends to the bottom of the mounting cylinder 1 to form an opening, the opening having a guiding slope to allow the impact plate 6 to enter the limiting groove 5.

[0041] Specifically, the opening formed by the extension of the limiting groove 5 to the bottom of the mounting cylinder 1 can guide the impact plate 6 into the limiting groove 5. The guide slope of the opening reduces the alignment accuracy requirements between the impact plate 6 and the limiting groove 5 by enlarging the opening. Under complex underwater working conditions, the impact plate 6 can smoothly slide into the limiting groove 5 along the slope, avoiding the problem of insertion jamming, completing the guiding docking of the mounting cylinder 1 and the annular anchor 4, improving assembly efficiency and facilitating alignment. The guide slope can disperse the contact stress during the insertion process and protect the structural integrity of the limiting groove 5 and the impact plate 6.

[0042] Optionally, micro-flushing channels can be provided on the surface of the guide slope to facilitate the removal of soil impurities adhering to the slope and ensure smooth guidance.

[0043] In some embodiments, the annular anchor 4 has a protrusion at the end of the cylinder away from the mounting cylinder 1. The cross-section of the protrusion is triangular, and the protrusion has two inclined surfaces that extend toward the inner wall and the outer wall of the mounting cylinder 1, respectively.

[0044] Specifically, the annular anchor 4 has a triangular protrusion at the end of the cylinder furthest from the mounting cylinder 1. The protrusion is annular in shape, and its two inclined surfaces extend towards the inner and outer walls of the mounting cylinder 1, respectively. The acute angle between the two inclined surfaces reduces the resistance of the protrusion into the soil. The inclined surfaces can bidirectionally cut the soil when the anchor penetrates the seabed, reducing the soil's penetration resistance and improving the settling efficiency of complex strata such as hard clay and dense sand. The bidirectional inclined surfaces can evenly distribute the soil compression force, weakening the disturbance to the surrounding seabed soil. The triangular cross-section of the protrusion provides a certain structural rigidity and impact resistance, resisting soil abrasion and impact loads during penetration, and ensuring the structural integrity of the anchor.

[0045] In some embodiments, a flow regulating valve is also included, which is disposed on the inlet pipe 9 to regulate the impact frequency and single impact energy of the hydraulic impactor 2.

[0046] Specifically, the flow regulating valve can adjust the flow rate and pressure of the high-pressure liquid input to the hydraulic impactor 2, directly changing the impact frequency and single impact energy, making the equipment adaptable to various seabed geology such as soft soil, hard clay, dense sand, and layered soil. In soft soil layers, it reduces impact parameters to weaken soil disturbance, while in hard soil layers, it increases impact parameters to ensure penetration efficiency. It also facilitates stable hydraulic system working pressure, avoids component damage caused by impact overload, and maintains stable operation of the hydraulic impactor 2.

[0047] In some embodiments, at least two impact plates 6 intersect each other, the intersection of the impact plates 6 is located on the axis of the annular anchor 4, and the number of limiting grooves 5 corresponds to the number of ends of the impact plates 6.

[0048] Specifically, at least two impact plates 6 intersect each other, with the intersection point located on the axis of the annular anchor 4. This allows the impact load of the hydraulic impactor 2 to be uniformly transmitted in multiple directions around the anchor body axis, avoiding localized stress concentration caused by a single impact plate 6. This enhances the impact bearing capacity of the impact plate 6 and the structural rigidity of the annular anchor 4 cylinder, preventing deformation of the cylinder during penetration. The number of limiting grooves 5 corresponds to the number of ends of the impact plates 6, achieving multi-point synchronous guidance and radial limiting, maintaining the coaxial alignment of the installation cylinder 1 and the annular anchor 4, preventing anchor body deflection during impact penetration, and improving the penetration straightness and impact energy transfer efficiency of the large-diameter annular anchor 4. Two impact plates 6 can intersect perpendicularly, and three impact plates 6 can intersect at equal angles. Understandably, multiple impact plates 6 are integrally formed to improve their strength.

[0049] In some embodiments, a stop is provided at the top of the limiting groove 5, which is used to axially limit the top of the impact plate 6.

[0050] Specifically, the stop portion provides stable axial restraint to the top of the impact plate 6, preventing its axial insertion stroke and ensuring that the top surface of the impact plate 6 remains in contact with the bottom surface of the anvil 3. This prevents axial movement of the impact plate 6 during impact operations, ensuring stable vertical transmission of the impact load and preventing axial separation between the annular anchor 4 and the installation cylinder 1 during the hoisting and lowering phase. It also avoids structural damage and penetration path deviation caused by eccentric loading. Furthermore, the stop portion protects the limiting groove 5 from damage and deformation caused by the impact of the impact plate 6. The stop portion is made of high-strength, impact-resistant material.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hydraulically driven impact-type annular anchor installer, characterized in that, include: The mounting cylinder and an annular anchor are installed. The top of the mounting cylinder is closed, and a lifting section is provided on the outer surface of the top of the mounting cylinder for detachable connection to a lifting cable. A hydraulic impactor is installed in the upper part of the interior of the mounting cylinder, and an anvil is located inside the mounting cylinder and abuts against the impact end of the hydraulic impactor to receive and transmit impact. At least one pair of symmetrically arranged limiting grooves are provided on the lower inner wall of the mounting cylinder, and the limiting grooves extend along the vertical axis of the mounting cylinder. The annular anchor is a cylinder with openings at the top and bottom, and a vertically arranged bearing is fixed in the middle of the inner wall of the annular anchor. The impact plate has two ends fixedly connected to the inner wall of the cylinder of the annular anchor; the impact plate and the limiting groove are slidably inserted into each other along the axial direction to achieve coaxial alignment and guidance between the mounting cylinder and the annular anchor; the top of the impact plate abuts coaxially with the bottom surface of the anvil to transmit the impact force of the hydraulic impactor to the annular anchor; an inlet pipe and an outlet pipe are provided at the top of the mounting cylinder; one end of the inlet pipe passes through the top cover of the mounting cylinder and is connected to the inlet of the hydraulic impactor; the outlet pipe is connected to the pressure relief outlet of the hydraulic impactor to form a hydraulic power circulation pipeline.

2. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, It also includes a partition plate located between the hydraulic impactor and the anvil inside the mounting cylinder. The partition plate separates the mounting cylinder into a power chamber and a working chamber. The hydraulic impactor is located in the power chamber, and the anvil is located in the working chamber. The limiting groove is connected to the working chamber.

3. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, The impact plate is arranged inside the cylinder of the annular anchor along the axial direction of the cylindrical body. Both ends of the impact plate are connected to the inner wall of the cylinder, and the thickness of the impact plate is adapted to the width of the limiting groove.

4. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, The annular anchor is a cylinder with openings at the top and bottom. At least one anchor eye is provided on the side wall of the cylinder, and the anchor eye protrudes from the side surface of the cylinder.

5. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, The hoisting unit includes at least two symmetrically arranged lifting lugs, and the lifting lugs are provided with lifting holes for the hoisting steel cables to pass through.

6. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, The limiting groove extends to the bottom of the mounting cylinder to form an opening, and the opening has a guiding slope to allow the impact plate to enter the limiting groove.

7. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, The annular anchor has a protrusion at one end of its cylinder away from the mounting cylinder. The protrusion has a triangular cross-section and two inclined surfaces extending toward the inner and outer walls of the mounting cylinder, respectively.

8. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, It also includes a flow regulating valve, which is installed on the inlet pipe to adjust the impact frequency and single impact energy of the hydraulic impactor.

9. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, At least two of the impact plates intersect each other, and the intersection of the impact plates is located on the axis of the annular anchor. The number of the limiting grooves corresponds to the number of the ends of the impact plates.

10. The hydraulic impact type annular anchor installer according to claim 1, characterized in that, The top of the limiting groove is provided with a stop, which is used to axially limit the top of the bearing plate.

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