Impact device and impact method

Abstract

The present application provides an impact device and an impact method, which relate to the field of construction engineering technology. The impact device includes a first guard arm, a second guard arm, a support shoe assembly, a drive assembly, a phase change assembly and an impact piece. By connecting the supply end of the phase change assembly to a accommodating cavity formed by the impact piece and a portion of the inner wall surface of the second guard arm, the phase change medium generated by the phase change assembly can push the impact piece to move in a direction away from the accommodating cavity, thereby increasing the impact speed of the impact piece; by arranging the support shoe assembly, during the impact process, the friction between the support shoe assembly and the first guard arm offsets the reaction force received by the impact device, thereby improving the structural stability of the impact device; by arranging the drive assembly, the drive assembly can drive the second guard arm to move relative to the first guard arm along the impact direction, so as to reduce the distance between the phase change assembly and the impact piece after the impact, thereby effectively utilizing the impact energy of the phase change medium. The impact method can repeatedly realize the impact process of the impact piece, thereby improving work efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of construction engineering, and in particular to an impact device and an impact method. Background Art

[0002] With the development of the construction industry, pile foundation construction has become increasingly important. In the process of pile foundation construction, a pile driver is needed. A pile driver is a pile-driving machine that uses impact force to penetrate piles into the ground.

[0003] In the prior art, a pile driver consists of a pile hammer, a pile frame, and ancillary equipment. Pile driver hammers can be categorized by their power source: drop hammers, steam hammers, diesel hammers, and hydraulic hammers. Currently, most pile drivers use hydraulic hammers for impact work. The core principle of a hydraulic hammer is to lift the hammer to accumulate gravitational potential energy, then release the hammer, which accelerates in free fall and impacts the top of the pile, pushing the pile into the soil. Repeating this process fully drives the pile into the soil.

[0004] However, existing pile drivers have the problems of low efficiency and high energy consumption. Summary of the Invention

[0005] The present application provides an impact device and an impact method, which improve energy utilization, achieve multiple impacts, and improve impact efficiency.

[0006] In a first aspect, the present application provides an impact device, comprising a first guard arm, a second guard arm, a support shoe assembly, a drive assembly, a phase change assembly, and an impact member.

[0007] The first guard arm has a first guard arm cavity, in which the drive assembly, the gripper shoe assembly, at least a portion of the second guard arm and at least a portion of the impact piece are located; the drive assembly and the gripper shoe assembly are both connected to the first guard arm.

[0008] The second guard arm has a second guard arm cavity, the impact piece is slidably connected to the second guard arm cavity, the impact piece and a portion of the inner wall of the second guard arm form an accommodating cavity, and the supply end of the phase change component is connected to the accommodating cavity.

[0009] The phase change component is used to provide phase change medium to the accommodating chamber to push the impact piece to move in a direction away from the accommodating chamber to the impact position of the piece to be impacted; when the impact piece stops impacting, the driving component is used to drive the second guard arm to move relative to the first guard arm along the impact direction; the support shoe assembly is used to support the first guard arm when the second guard arm is stationary relative to the first guard arm, and to separate from the first guard arm when the second guard arm moves relative to the first guard arm.

[0010] In the above-mentioned impact device, optionally, the driving assembly includes a driving member and a transmission member, and the driving member is connected to the transmission member.

[0011] The driving member is connected to the first guard arm; the transmission member is arranged in the first guard arm cavity; the driving member is used to drive the transmission member, so that the transmission member drives the second guard arm to move relative to the first guard arm along the impact direction.

[0012] In the above-mentioned impact device, optionally, the transmission member includes a threaded screw and a nut.

[0013] The first end of the lead screw is connected to the driving end of the driving member; the extending direction of the lead screw is parallel to the extending direction of the first guard arm; and the nut is connected to the second guard arm.

[0014] In the above-mentioned impact device, optionally, the drive assembly includes two, and the two drive assemblies are respectively arranged on opposite sides of the second guard arm.

[0015] Alternatively, the drive components include at least three, and the at least three drive components are spaced apart along the circumference of the second guard arm.

[0016] In the above-mentioned impact device, optionally, the support shoe assembly includes a support shoe abutment and a support shoe connecting member, the support shoe abutment abuts against the inner wall surface of the first guard arm; the first end of the support shoe connecting member is rotatably connected to the support shoe abutment, and the second end of the support shoe connecting member is rotatably connected to the second guard arm.

[0017] In the above-mentioned impact device, it is optional that each of the support shoe abutment and the support shoe connecting member includes two, and the two support shoe abutments are respectively arranged on opposite sides of the second guard arm, and respectively abut against the inner wall surfaces on opposite sides of the first guard arm; the two support shoe connecting members are rotatably connected near one end of the second guard arm, and are rotatably connected to the second guard arm, and the extension directions of the two support shoe connecting members intersect, and the inner angle of the extension direction angle of the two support shoe connecting members is located on the side away from the second guard arm.

[0018] In the above-mentioned impact device, optionally, it further includes an elastic member, and both ends of the elastic member are respectively connected to the two support shoe connectors, and are connected to a side of the support shoe connector facing away from the second guard arm.

[0019] And / or, the second guard arm further includes a telescopic member, a first end of the telescopic member is rotatably connected to the support shoe connecting member, and a second end of the telescopic member is connected to the second guard arm.

[0020] In the above-mentioned impact device, optionally, the phase change component includes a shell and a fracturing tube, there are multiple fracturing tubes, and the multiple fracturing tubes are all arranged in the shell, and a shell opening is provided on the shell, and the fracturing openings of the fracturing tubes are connected to the accommodating cavity through the shell opening.

[0021] The plurality of fracturing tubes are configured to sequentially complete multiple phase changes and sequentially provide multiple phase change media to the accommodating cavity, so as to cause the impact piece to move multiple times in a direction away from the accommodating cavity.

[0022] In the above-mentioned impact device, optionally, the second guard arm further includes a mounting piece and a guard arm tube.

[0023] The guard arm tube has a guard arm opening, and the impact piece is configured to move in a direction away from the accommodating cavity through the guard arm opening.

[0024] The mounting piece is arranged on a side of the arm guard tube away from the arm guard opening, and the phase change component and the nut are arranged on the mounting piece.

[0025] In a second aspect, the present application provides an impact method, which is applied to the above-mentioned impact device, and the impact method comprises the following steps:

[0026] Controlling the phase change assembly to provide phase change medium to the accommodating chamber to push the impact member to move in a direction away from the accommodating chamber to an impact position of the member to be impacted; controlling the gripper assembly to support the first guard arm when the first guard arm is stationary relative to the second guard arm;

[0027] The driving assembly is controlled to drive the second guard arm to move relative to the first guard arm along the impact direction; the shoe assembly is controlled to separate from the first guard arm when the first guard arm moves relative to the second guard arm along the impact direction;

[0028] The steps of the phase change assembly providing the phase change medium, the shoe assembly supporting the first guard arm, the driving assembly driving the second guard arm to move along the impact direction, and the shoe assembly separating from the first guard arm are repeated in sequence until the impact piece moves to the target impact position of the piece to be impacted.

[0029] The present application provides an impact device and an impact method, which include a first guard arm, a second guard arm, a support shoe assembly, a drive assembly, a phase change assembly and an impact piece. By arranging the first guard arm and the second guard arm, the structural stability of the impact device is improved, wherein the second guard arm has a second guard arm cavity, and the impact piece and a portion of the inner wall surface of the second guard arm form a accommodating cavity; by arranging the impact piece in the second guard arm cavity, the second guard arm guides the movement process of the impact piece, thereby improving the impact accuracy of the impact piece; by connecting the supply end of the phase change assembly to the accommodating cavity, the phase change assembly can provide a phase change medium to the accommodating cavity, and then the phase change medium pushes the impact piece in the second guard arm cavity to move in a direction away from the accommodating cavity, thereby improving the impact speed of the impact piece.

[0030] When the impact piece impacts the surface to be impacted, the impact device will be subjected to a force from the opposite direction. By setting a support shoe assembly, the support shoe assembly is connected to the first guard arm. During the impact process, friction is generated between the support shoe assembly and the inner wall surface of the first guard arm to offset the reaction force received by the impact device, thereby improving the structural stability of the impact device; by setting a driving assembly, the driving assembly can drive the second guard arm to move relative to the first guard arm along the impact direction of the impact piece to reduce the distance between the phase change assembly and the impact piece when the impact piece impacts again, thereby reducing the working distance of the phase change medium, effectively utilizing the energy of the phase change medium generated when the phase change assembly undergoes a phase change reaction, and improving energy utilization.

[0031] The impact method can repeatedly execute the steps of the phase change component providing the phase change medium, the support shoe component supporting the first guard arm, the driving component driving the second guard arm to move along the impact direction, and the support shoe component detaching from the first guard arm. The impact method realizes multiple impacts of the impact part, effectively utilizes the impact energy of the phase change medium, improves the energy utilization rate, and improves the working efficiency of the impact device.

[0032] The structure of the present application and its other practical purposes and beneficial effects will be more clearly understood through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 A schematic diagram of the structure of the impact device provided in an embodiment of the present application before the first impact;

[0035] Figure 2 A schematic diagram of the structure of the impact device provided in an embodiment of the present application after the first impact;

[0036] Figure 3 A schematic diagram of the structure of the impact device provided in an embodiment of the present application before the second impact;

[0037] Figure 4 A schematic structural diagram of a gripper assembly and a phase change assembly of an impact device provided in an embodiment of the present application;

[0038] Figure 5 A schematic diagram of the steps of the impact method provided in an embodiment of the present application.

[0039] Description of reference numerals:

[0040] 100: gripper assembly; 200: drive assembly; 300: second guard arm; 400: first guard arm; 500: phase change assembly; 600: impact member;

[0041] 101: gripper shoe connecting member; 102: gripper shoe abutment member;

[0042] 201: driving member; 202: transmission member;

[0043] 211: Screw; 212: Nut;

[0044] 301: Arm guard tube; 302: Mounting piece; 303: Telescopic piece;

[0045] 700: Elastic parts.

[0046] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0047] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0048] During actual research, the inventors of this application discovered that a pile driver is a type of pile-driving machine that uses impact force to drive piles into the ground. A pile driver consists of a pile hammer, a pile frame, and ancillary equipment. Pile hammers can be categorized by their power source, including drop hammers, steam hammers, diesel hammers, and hydraulic hammers.

[0049] In existing technology, pile drivers often use hydraulic hammers for hammering. The core principle of a hydraulic hammer-based pile driver is to raise the hammer to a specified height and then release it. The hammer accelerates in free fall and strikes the top of the pile, pushing the pile into the soil. A hydraulic hammer pile driver consists of a pile hammer, a hydraulic cylinder, and a hydraulic pressure regulating valve. During operation, a hydraulic source provides high-pressure oil to the piston rod chamber of the hydraulic cylinder, pushing the piston rod upward. Once the pile hammer is raised to the set height, the hammer separates from the piston rod, and the pile hammer descends at the rate of free fall.

[0050] However, the gravitational acceleration g of the pile hammer during free fall is fixed, so the pile hammer's final impact speed cannot be further increased. Existing pile drivers have the problem of low impact efficiency. In addition, pile drivers using hydraulic hammers use hydraulic oil as power, and completing the entire impact work process has the problems of high energy consumption and high cost.

[0051] In view of this, an embodiment of the present application provides an impact device and an impact method, wherein the impact device includes a first guard arm, a second guard arm, a support shoe assembly, a drive assembly, a phase change assembly and an impact piece. By arranging the first guard arm and the second guard arm, the structural stability of the impact device is improved, wherein the second guard arm has a second guard arm cavity, and the impact piece and a portion of the inner wall surface of the second guard arm form a accommodating cavity; by arranging the impact piece in the second guard arm cavity, the second guard arm guides the movement process of the impact piece, thereby improving the impact accuracy of the impact piece; by connecting the supply end of the phase change assembly to the accommodating cavity, the phase change assembly can provide a phase change medium to the accommodating cavity, and then the phase change medium pushes the impact piece in the second guard arm cavity to move in a direction away from the accommodating cavity, thereby improving the impact speed of the impact piece.

[0052] When the impact piece impacts the surface to be impacted, the impact device will be subjected to a force from the opposite direction. By setting a support shoe assembly, the support shoe assembly is connected to the first guard arm. During the impact process, friction is generated between the support shoe assembly and the inner wall surface of the first guard arm to offset the reaction force received by the impact device, thereby improving the structural stability of the impact device; by setting a driving assembly, the driving assembly can drive the second guard arm to move relative to the first guard arm along the impact direction of the impact piece to reduce the distance between the phase change assembly and the impact piece when the impact piece impacts again, thereby reducing the working distance of the phase change medium, effectively utilizing the energy of the phase change medium generated when the phase change assembly undergoes a phase change reaction, and improving energy utilization.

[0053] The impact method can repeatedly execute the steps of the phase change component providing the phase change medium, the support shoe component supporting the first guard arm, the driving component driving the second guard arm to move along the impact direction, and the support shoe component detaching from the first guard arm. The impact method realizes multiple impacts of the impact part, effectively utilizes the impact energy of the phase change medium, improves the energy utilization rate, and improves the working efficiency of the impact device.

[0054] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0055] First, refer to Figure 1 As shown, the present application provides an impact device, including a first guard arm 400 , a second guard arm 300 , a gripper assembly 100 , a drive assembly 200 , a phase change assembly 500 and an impact piece 600 .

[0056] The first guard arm 400 has a first guard arm cavity, in which the drive assembly 200 , the gripper shoe assembly 100 , at least part of the second guard arm 300 and at least part of the impact member 600 are located; the drive assembly 200 and the gripper shoe assembly 100 are both connected to the first guard arm 400 .

[0057] The second guard arm 300 has a second guard arm cavity, the impact piece 600 is slidably connected to the second guard arm cavity, the impact piece 600 and a portion of the inner wall of the second guard arm 300 form a receiving cavity, and the supply end of the phase change assembly 500 is connected to the receiving cavity.

[0058] The phase change component 500 is used to provide phase change medium to the accommodating chamber to push the impact member 600 to move in a direction away from the accommodating chamber to the impact position of the member to be impacted; when the impact member 600 stops impacting, the driving component 200 is used to drive the second guard arm 300 to move relative to the first guard arm 400 along the impact direction; the support shoe assembly 100 is used to support the first guard arm 400 when the second guard arm 300 is stationary relative to the first guard arm 400, and to separate from the first guard arm 400 when the second guard arm 300 moves relative to the first guard arm 400.

[0059] For example, refer to Figure 1 and Figure 2As shown, when the impact device is in the impact state, the phase change component 500 provides a phase change medium into the accommodating chamber, so that the phase change medium pushes the impact member 600 to move in the direction away from the accommodating chamber, and then the impact member 600 moves to the impact position of the member to be impacted; during the movement of the impact member 600 in the direction away from the accommodating chamber, the impact device is subjected to the reaction force of the surface to be impacted. During this process, the support shoe assembly 100 is always supported by the first guard arm 400; when the impact member 600 moves to the impact position of the member to be impacted, the impact device is no longer in the impact state, refer to Figure 2 The volume of the accommodating chamber at the supply end of the impact member 600 and the phase change assembly 500 is larger than the volume of the accommodating chamber when no impact reaction occurs. Figure 3 As shown, the driving assembly 200 drives the second guard arm 300 to move relative to the first guard arm 400 along the impact direction, and the support shoe assembly 100 disengages from the first guard arm 400, thereby reducing the volume of the accommodating cavity between the impact member 600 and the supply end of the phase change assembly 500, and reducing the distance between the supply end of the phase change assembly 500 and the impact member 600.

[0060] For example, the impact position of the member to be impacted is the actual position after each impact of the impact member 600. The target impact position of the member to be impacted 600 is the depth position set by the operator that the impact member 600 should reach after the last impact.

[0061] For example, by connecting the supply end of the phase change component 500 to the accommodating cavity, the phase change component 500 can provide the phase change medium to the accommodating cavity, and then the phase change medium pushes the impact piece 600 in the second guard arm cavity to move away from the accommodating cavity, thereby increasing the impact speed of the impact piece 600 and the impact force of the impact piece 600 on the surface to be impacted.

[0062] For example, when the phase change component 500 undergoes a phase change reaction, the phase change medium generated by the phase change component 500 exerts a force along the impact member 600. Figure 1 The impact force shown in the Y direction is applied to the impact surface in the same direction. Similarly, the impact surface generates an impact force in the opposite direction on the impact device. The first and second guard arms 400 and 300 provide structural support for the impact device, improving its overall stability during the impact process. The gripper shoe assembly 100 is connected to the first guard arm 400. When the phase change assembly 500 undergoes a phase change reaction and generates a reaction force within the impact device, friction is generated between the gripper shoe assembly 100 and the inner wall of the first guard arm 400 to offset the reaction force applied to the second guard arm 300, thereby improving the stability of the impact device's internal structure.

[0063] For example, by setting up a driving component 200, the driving component 200 can drive the second guard arm 300 to move relative to the first guard arm 400 along the impact direction, so as to reduce the distance between the phase change component 500 and the impact piece 600 after the impact, and reduce the working distance of the phase change medium when the phase change component 500 undergoes phase change reaction again, thereby effectively utilizing the impact energy of the phase change medium and improving energy utilization.

[0064] For example, the impact member 600 may be an impact column, and the end of the impact member 600 facing away from the accommodating cavity is the impact end of the impact member 600 .

[0065] As a feasible embodiment, the phase change assembly 500 includes a shell and a fracturing tube. There are multiple fracturing tubes, all of which are arranged in the shell. A shell opening is provided on the shell, and the fracturing openings of the fracturing tubes are connected to the accommodating cavity through the shell opening.

[0066] The plurality of fracturing tubes are configured to sequentially complete multiple phase changes and sequentially provide multiple phase change media to the accommodating cavity, so as to cause the impact member 600 to move multiple times in a direction away from the accommodating cavity.

[0067] For example, the phase change assembly 500 includes a housing and a fracturing tube, wherein there are multiple fracturing tubes, each of which is disposed within the housing. By providing multiple fracturing tubes, the phase change assembly 500 can release the phase change medium at intervals, thereby providing impact force to the impact member 600 multiple times through the phase change medium. This allows the impact member 600 to achieve multiple effective impacts. Furthermore, by providing multiple fracturing tubes, each time the phase change assembly 500 undergoes a phase change reaction, one of the multiple fracturing tubes undergoes a phase change reaction. This allows the phase change assembly 500 to undergo multiple phase change reactions, and the amount of phase change medium released each time is controllable. This allows the impact force obtained by the impact member 600 from the phase change medium to be controllable, thereby improving the impact controllability and safety of the impact device.

[0068] In some embodiments, the phase change assembly 500 includes a carbon dioxide fracturing device. The storage medium in the fracturing tube may be liquid carbon dioxide, and the phase change medium released by the fracturing tube may be gaseous carbon dioxide. The carbon dioxide fracturing device utilizes the physical principle that liquid carbon dioxide absorbs heat, vaporizes, and expands, causing a rapid increase in pressure.

[0069] As a feasible embodiment, the support shoe assembly 100 includes a support shoe abutment 102 and a support shoe connector 101, and the support shoe abutment 102 abuts against the inner wall surface of the first guard arm 400; the first end of the support shoe connector 101 is rotatably connected to the support shoe abutment 102, and the second end of the support shoe connector 101 is rotatably connected to the second guard arm 300.

[0070] For example, when the impact device is in an impact state, the phase change assembly 500 releases phase change medium into the accommodating chamber, which in turn pushes the impact member 600 in a direction away from the accommodating chamber. The impact member 600 collides with the surface to be impacted, applying a force to the surface to be impacted. Simultaneously, the second guard arm 300 is subjected to a reaction force from the surface to be impacted. The second guard arm 300 transmits the force to the gripper connector 101 connected thereto. The gripper connector 101 transmits the force it has received to the gripper abutment 102, generating friction between the gripper abutment 102 and the inner wall surface of the first guard arm 400 to offset the force received by the gripper abutment 102. By abutting the gripper abutment 102 against the inner wall surface of the first guard arm 400, the stability of the internal structure of the impact device during the impact process is improved.

[0071] For example, the gripper abutment member 102 may be an abutment plate, and the gripper connection member 101 may be a connecting rod. The abutment plate abuts against the inner wall surface of the first guard arm 400. The abutment plate has the advantage of a large area, which increases the abutment area between the abutment plate and the inner wall surface of the first guard arm 400, helps to offset the force acting on the gripper abutment member 102, and improves the structural stability of the impact device.

[0072] For example, by rotatably connecting the first end of the gripper connector 101 to the gripper abutment 102 and rotatably connecting the second end of the gripper connector 101 to the second guard arm 300, the gripper connector 101 can rotate within a certain angular range relative to the gripper abutment 102. During the impact process, the gripper connector 101 rotates within a certain angular range relative to the second guard arm 300, thereby improving the structural flexibility of the impact device.

[0073] For example, the first end of the gripper connecting member 101 and the gripper abutting member 102 may be hinged.

[0074] As a feasible embodiment, the support shoe abutment 102 and the support shoe connection member 101 each include two, and the two support shoe abutment members 102 are respectively arranged on the opposite sides of the second guard arm 300, and respectively abut against the inner wall surfaces on the opposite sides of the first guard arm 400; the two support shoe connection members 101 are rotatably connected at one end close to the second guard arm 300, and are rotatably connected to the second guard arm 300, and the extension directions of the two support shoe connection members 101 intersect, and the inner angle of the extension direction angle of the two support shoe connection members 101 is located on the side away from the second guard arm 300.

[0075] In some embodiments, the first ends of the two gripper shoe connectors 101 are rotatably connected to the same position of the second guard arm 300, and the second ends of the two gripper shoe connectors 101 are respectively connected to the two gripper shoe abutments 102, which are respectively provided on the inner wall surfaces of the opposite sides of the first guard arm 400. Figure 1As shown, the inner angle of the angle between the extension directions of the two gripper shoe connectors 101 is located on the side away from the second guard arm 300 .

[0076] When the impact device is in the impact state, the phase change assembly 500 undergoes a phase change reaction, releasing the phase change medium. This phase change medium propels the impact member 600 away from the accommodating cavity, causing the impact member 600 to exert a force on the surface to be impacted. Simultaneously, the second guard arm 300 is subjected to a reaction force from the surface to be impacted. When the first ends of the two gripper connectors 101 are pivotally connected to the same position on the second guard arm 300, the second guard arm 300 transmits the force to the two gripper connectors 101 connected to the same position on the second guard arm 300. At this time, the first ends of the two gripper connectors 101 are subjected to the force. The two gripper connectors 101 transmit the force along their own extension direction to the two gripper abutting members 102 abutting the inner wall of the first guard arm 400. Friction is generated between the two gripper abutting members 102 and the inner wall of the first guard arm 400, offsetting the force exerted on the gripper abutting members 102. By connecting the two support shoe connectors 101 to the same position of the second guard arm 300 and arranging the two support shoe abutments 102 on opposite sides of the second guard arm 300, it is beneficial for the second guard arm 300 to evenly transfer the force to the two support shoe connectors 101, and then the two support shoe connectors 101 transfer the force to the two support shoe abutments 102, thereby achieving even transmission of force and improving the structural stability inside the impact device during the impact process of the impact device.

[0077] In other embodiments, the first ends of the two support shoe connectors 101 are respectively rotatably connected to different positions of the second guard arm 300, the second ends of the two support shoe connectors 101 are respectively connected to the two support shoe abutments 102, the two support shoe abutments 102 are respectively arranged on opposite sides of the second guard arm 300, and the two support shoe connectors 101 are respectively arranged on the inner wall surfaces on opposite sides of the first guard arm 400.

[0078] When the impact device is in the impact state, the phase change assembly 500 undergoes a phase change reaction, releasing the phase change medium. This phase change medium propels the impact member 600 away from the accommodating chamber, applying a force to the surface to be impacted. Simultaneously, the second guard arm 300 is subjected to a reaction force from the surface to be impacted. The second guard arm 300 transmits this force to its two connected gripper connectors 101. The two gripper connectors 101 transmit this force along their respective extension directions to the two gripper abutments 102. Friction is generated between the two gripper abutments 102 and the inner wall of the first guard arm 400, offsetting the force applied to the gripper abutments 102 and improving the structural stability of the impact device during the impact process.

[0079] As a feasible implementation, the impact device further includes an elastic member 700 , both ends of which are respectively connected to the two support shoe connectors 101 and connected to the side of the support shoe connector 101 facing away from the second guard arm 300 .

[0080] As a feasible implementation, the second guard arm 300 further includes a telescopic member 303 , a first end of the telescopic member 303 is rotatably connected to the support shoe connector 101 , and a second end of the telescopic member 303 is connected to the second guard arm 300 .

[0081] As a feasible implementation, the second arm guard 300 further includes a mounting member 302 and an arm guard tube 301 .

[0082] The arm guard tube 301 has an arm guard opening, and the impact member 600 is configured to move in a direction away from the accommodating cavity through the arm guard opening.

[0083] The mounting member 302 is disposed on a side of the arm guard tube 301 away from the arm guard opening, and the phase change assembly 500 and the nut 212 are disposed on the mounting member 302 .

[0084] In some embodiments, the impact device is provided with an elastic member 700, with both ends of the elastic member 700 respectively connected to two gripper connectors 101. When the impact device is in an impact state, the gripper contact member 102 constantly presses against the inner wall surface of the first guard arm 400. By providing the elastic member 700, during the impact process of the impact member 600, the two gripper connectors 101 are respectively subjected to a force from the elastic member 700 toward the inner wall surface of the first guard arm 400. The gripper connectors 101 then transmit the elastic force they receive to the gripper contact member 102, which in turn receives a force toward the inner wall surface of the first guard arm 400, pressing the gripper contact member 102 against the inner wall surface of the first guard arm 400. This increases the force between the gripper contact member 102 and the inner wall surface of the first guard arm 400, thereby improving the friction between the gripper contact member 102 and the first guard arm 400 during the impact process and enhancing the structural stability of the impact device.

[0085] In other embodiments, the second arm guard 300 further includes an arm guard tube 301 and a mounting member 302. The mounting member 302 is disposed on the side of the arm guard tube 301 facing away from the arm guard opening. The phase change assembly 500 is mounted on the mounting member 302. The mounting member 302 provides a supporting platform for the phase change assembly 500, improving the stability of the impact device during the phase change reaction of the phase change assembly 500. The mounting member 302 is provided with a mounting opening, and the supply end of the phase change assembly 500 communicates with the accommodating chamber through the mounting opening of the mounting member 302.

[0086] For example, the mounting member 302 may be a mounting plate, and the mounting plate may be welded to the arm guard tube 301 to improve the connection strength of the impact device.

[0087] In some other embodiments, referring to Figure 1 and Figure 4 As shown, the second guard arm 300 includes a guard arm tube 301, a telescopic member 303 and a mounting member 302. The first end of the telescopic member 303 is rotatably connected to the support shoe connector 101, and the second end of the telescopic member 303 is connected to the shell top of the phase change component 500. After the impact member 600 stops impacting, the drive assembly 200 is used to drive the mounting member 302 to move relative to the first guard arm 400 in the impact direction; when the mounting member 302 stops moving, the angle between the two guard arm connectors can be adjusted by adjusting the length of the telescopic member 303, so that the support shoe contact member 102 is pressed against the inner wall surface of the first guard arm 400. Figure 3 As shown, the telescopic member 303 and the two support shoe connectors 101 form a Y-shaped structure to support and fix the entire impact device, ensuring the energy release and work effect of the phase change component 500. At the same time, the friction force generated by the support shoe abutment 102 and the inner wall surface of the first guard arm 400 offsets the reaction force exerted on the shell of the phase change component 500 during the phase change reaction, thereby reducing the impact effect of the transient huge energy of the phase change component 500 during the phase change reaction on the impact device.

[0088] In yet other embodiments, the second guard arm 300 includes an arm tube 301, a telescopic member 303, and a mounting member 302. The first end of the telescopic member 303 is rotatably connected to the gripper connector 101, and the second end of the telescopic member 303 is connected to the side of the mounting member 302 facing away from the accommodating cavity. After the impact member 600 stops impacting, the drive assembly 200 is used to drive the mounting member 302 to move relative to the first guard arm 400 in the impact direction. After the mounting member 302 stops moving, the angle between the two gripper connectors 101 can be adjusted by adjusting the length of the telescopic member 303, so that the gripper contact member 102 is pressed against the inner wall surface of the first guard arm 400. The telescopic part 303 and the two support shoe connectors 101 form a Y-shaped structure to support and fix the entire impact device, ensuring the energy release and work effect of the phase change component 500. At the same time, the friction force generated by the support shoe abutment 102 and the inner wall surface of the first guard arm 400 offsets the reaction force exerted on the shell of the phase change component 500 during the phase change reaction, thereby reducing the impact of the transient huge energy of the phase change component 500 during the phase change reaction on the impact device.

[0089] In yet other embodiments, the impact device further comprises an elastic member 700, the ends of which are respectively connected to the two gripper connectors 101. The second guard arm 300 comprises an arm tube 301, a telescopic member 303, and a mounting member 302. The first end of the telescopic member 303 is rotatably connected to the gripper connector 101, and the second end of the telescopic member 303 is connected to the top of the housing of the phase change assembly 500. After the impact member 600 stops impacting, the drive assembly 200 is used to drive the mounting member 302 to move relative to the first guard arm 400 in the impact direction. When the mounting member 302 stops moving, the angle between the two guard arm connectors changes by adjusting the length of the telescopic member 303, so that the gripper contact member 102 abuts against the inner wall of the first guard arm 400. By arranging the elastic member 700 and the telescopic member 303, during the impact process of the impact member 600, under the condition that the support shoe abutment 102 is pressed against the inner wall surface of the first guard arm 400, the two support shoe connecting members 101 are also respectively subjected to the force from the elastic member 700 toward the inner wall surface of the first guard arm 400, and the support shoe connecting member 101 transfers the elastic force received to the support shoe abutment 102, and the support shoe abutment 102 is subjected to the force toward the inner wall surface of the first guard arm 400, and the support shoe abutment 102 is pressed against the inner wall surface of the first guard arm 400. In this way, the force between the support shoe abutment 102 and the inner wall surface of the first guard arm 400 is further increased, the friction between the support shoe abutment 102 and the first guard arm 400 during the impact process is further improved, and the structural stability of the impact device is further improved.

[0090] For example, the telescopic member 303 may be a telescopic oil cylinder, and the elastic member 700 may be a spring.

[0091] For example, refer to Figure 1 As shown, the extension direction of the arm guard tube 301 is the same as the extension direction of the impact piece 600. The extension direction of the arm guard tube 301 and the extension direction of the impact piece 600 are shown in FIG. Figure 1 By providing the arm guard tube 301 with the same extending direction as the impact member 600, the arm guard tube 301 can provide a guide for the impact member 600 slidably connected to the arm guard tube 301, thereby improving the accuracy of the impact member 600 in the impact position.

[0092] In some embodiments, the arm guard tube 301 may be a cylinder with a telescopic function. When the driving member 201 drives the mounting member 302 to move relative to the first guard arm 400 along the impact direction, the arm guard tube 301 is compressed.

[0093] In other embodiments, the arm guard tube 301 may be a metal cylinder without a telescopic function, and the mounting member 302 may have a cylinder opening for the metal cylinder to pass through. As the driver 201 drives the mounting member 302 to move relative to the first arm guard 400 in the impact direction, the mounting member 302 moves relative to the arm guard tube 301 toward the impact direction.

[0094] As a feasible implementation, the driving assembly 200 includes a driving member 201 and a transmission member 202 , and the driving member 201 is connected to the transmission member 202 .

[0095] The driving member 201 is connected to the first guard arm 400; the transmission member 202 is arranged in the first guard arm cavity; the driving member 201 is used to drive the transmission member 202, so that the transmission member 202 drives the second guard arm 300 to move relative to the first guard arm 400 along the impact direction.

[0096] For example, the second arm guard 300 includes an arm guard tube 301 and a mounting member 302. The mounting member 302 is disposed at the end of the arm guard tube 301 facing away from the arm guard opening. The phase change assembly 500 is disposed on the mounting member 302, which is connected to the transmission member 202. The supply end of the phase change assembly 500 communicates with the accommodating chamber through the mounting opening of the mounting member 302. To improve the utilization rate of the energy generated by the phase change reaction of the phase change assembly 500, the distance between the impact member 600 and the supply end of the phase change assembly 500 should be as small as possible. When the impact member 600 completes the impact reaction, the driving member 201 starts, and the driving member 201 drives the transmission member 202 to enter the working state, and then the transmission member 202 drives the mounting member 302 to move along the impact direction relative to the first guard arm 400, and then the phase change component 500 moves toward the impact member 600, thereby reducing the distance between the impact member 600 and the supply end of the phase change component 500, and realizing precise control of the distance between the phase change component 500 and the impact member 600.

[0097] In this way, when the phase change component 500 undergoes a phase change reaction again, the phase change medium of the phase change component 500 that undergoes a phase change reaction can directly act on the impact piece 600, avoiding the energy loss caused by friction between the phase change medium and the gas inside the accommodating cavity, improving the energy utilization rate of the phase change medium, and increasing the impact force of the impact piece 600.

[0098] For example, during each impact of the impact member 600, the phase change medium propels the impact member 600 to complete the impact on the surface to be impacted. After the impact member 600 completes the impact, the driver 201 is activated, driving the transmission member 202 to rotate, which in turn drives the mounting member 302 to move closer to the impact member 600, thereby reducing the distance between the impact member 600 and the phase change assembly 500. During the impact of the impact member 600, the arm guard 301 only needs to ensure a sealed space between the impact member 600 and the phase change assembly 500. Therefore, the impact preparation process of the impact member 600 does not occupy too much space within the arm guard 301. Therefore, the impact process of the impact member 600 is not limited by the length of the arm guard 301, and more impacts can be completed.

[0099] For example, the driving member 201 may be a driving motor.

[0100] As a feasible implementation, the transmission member 202 includes a screw 211 and a nut 212 that are threaded together.

[0101] The first end of the lead screw 211 is connected to the driving end of the driving member 201 ; the extending direction of the lead screw 211 is parallel to the extending direction of the first guard arm 400 ; the nut 212 is connected to the second guard arm 300 .

[0102] For example, the driving member 201 is connected to the first guard arm 400, the lead screw 211 is connected to the driving end of the driving member 201, and the extension direction of the lead screw 211 is as shown in FIG. Figure 1 In the Y direction shown, the lead screw 211 passes through the mounting opening of the mounting member 302 , and the nut 212 is disposed on a side of the mounting member 302 facing away from the phase change assembly 500 .

[0103] For example, after the driving member 201 is started, the screw 211 connected to the driving end of the driving member 201 rotates, and the nut 212 threaded with the screw 211 moves away from or close to the impact member 600, thereby driving the mounting member 302 to move away from or close to the impact member 600, and then the phase change component 500 moves towards or away from the impact member 600. In this way, the distance between the supply end of the phase change component 500 and the impact member 600 is adjusted.

[0104] In some embodiments, after the driving member 201 is started, the screw 211 connected to the driving end of the driving member 201 rotates in a first direction, and the nut 212 threadedly connected to the screw 211 moves toward the direction close to the impact member 600, thereby driving the mounting member 302 to move toward the direction close to the impact member 600, and then the phase change assembly 500 moves toward the direction close to the impact member 600, thereby adjusting the distance between the supply end of the phase change assembly 500 and the impact member 600.

[0105] As a feasible implementation, the driving components 200 include two, and the two driving components 200 are respectively arranged on opposite sides of the second guard arm 300 .

[0106] In some embodiments, the driving assemblies 200 include at least three, and the at least three driving assemblies 200 are spaced apart along the circumference of the second guard arm 300 .

[0107] In some embodiments, there are two drive assemblies 200, and the two drive assemblies 200 are respectively connected to the two sides of the mounting member 302. The two drive assemblies 200 are used to drive the mounting member 302 to move along the impact direction relative to the first guard arm 400, thereby increasing the moving speed of the mounting member 302 toward the impact member 600, and increasing the force stability of the mounting member 302, which is conducive to the mounting member 302 to smoothly drive the phase change assembly 500 to move toward the direction of the impact member 600.

[0108] In other embodiments, there are three drive assemblies 200, and the three drive assemblies 200 are arranged at intervals along the circumference of the arm guard tube 301. The three drive assemblies 200 are connected to the mounting member 302 at intervals. In the process of the mounting member 302 moving in the impact direction driven by the three drive assemblies 200, by setting three drive assemblies 200, the moving speed of the mounting member 302 toward the impact member 600 is increased, and the force stability of the mounting member 302 is improved, which is conducive to the mounting member 302 smoothly driving the phase change assembly 500 to move toward the direction of the impact member 600.

[0109] Secondly, refer to Figure 5 As shown, the present application provides an impact method, which is applied to the above-mentioned impact device, and the impact method includes the following steps:

[0110] S100: Controlling the phase change assembly to provide a phase change medium to the accommodating chamber to push the impact member to move in a direction away from the accommodating chamber to an impact position of the member to be impacted; controlling the gripper assembly to support the first guard arm when the first guard arm is stationary relative to the second guard arm;

[0111] S200: Controlling the driving assembly to drive the second guard arm to move relative to the first guard arm along the impact direction; controlling the gripper assembly to detach from the first guard arm when the first guard arm moves relative to the second guard arm along the impact direction;

[0112] S300: Repeat the steps of the phase change assembly providing the phase change medium, the shoe assembly supporting the first guard arm, the driving assembly driving the second guard arm to move along the impact direction, and the shoe assembly detaching from the first guard arm until the impact member moves to the target impact position of the member to be impacted.

[0113] For example, when the impact device is in the impact state, the phase change component 500 undergoes a phase change reaction, and the liquid carbon dioxide is converted into gaseous carbon dioxide. The gaseous carbon dioxide quickly fills the accommodating cavity and pushes the impact column to move in the direction away from the accommodating cavity. The end of the impact column away from the accommodating cavity is in the impact position of the part to be impacted; at the same time, the telescopic part 303 is in an extended state, and the support shoe abutment 102 of the support shoe connector 101 is tightly pressed against the inner wall surface of the first guard arm 400, and the spring is in a compressed state. The spring applies elastic force to the support shoe connector 101, and then the support shoe connector 101 transmits the elastic force to the support shoe abutment 102, and the support shoe abutment 102 tightens the inner wall surface of the first guard arm 400.

[0114] Subsequently, the drive motor is activated, driving the lead screw 211 to rotate, causing the nut 212, which is threadedly connected to the lead screw 211, to move toward the impact member 600. This in turn causes the mounting plate to move toward the impact member 600, and the phase change assembly 500 above the mounting plate to move toward the impact member 600. Simultaneously, the mounting plate drives the telescopic member 303 toward the impact member 600, which in turn drives the gripper connector 101 toward the impact member 600, and the gripper contact member 102 toward the impact member 600, until the supply end of the phase change assembly 500 approaches the end of the impact member 600. At this point, the telescopic member 303 extends, and the gripper contact member 102, which is rotatably connected to the gripper connector 101, abuts against the inner wall of the first guard arm 400.

[0115] The phase change assembly 500 then undergoes another phase change reaction, converting the liquid carbon dioxide into gaseous carbon dioxide, which then impacts the impact member 600. During the impact process, the phase change assembly 500 provides the phase change medium, the gripper assembly 100 supports the first guard arm 400, the drive assembly 200 drives the second guard arm 300 to move in the impact direction, and the gripper assembly 100 disengages from the first guard arm 400, until the impact column moves to the target impact position of the impact member 600. The phase change assembly 500 can release gaseous carbon dioxide at intervals, providing power for the impact column to impact multiple times, thus achieving multiple impacts. The drive assembly 200 reduces the distance between the supply end of the phase change assembly 500 and the impact member 600, shortening the distance traveled by the gaseous carbon dioxide during the phase change reaction and improving the energy utilization of the impact device. This impact method achieves a step-by-step, step-by-step approach to the impact device, improving its operating efficiency.

[0116] It can be understood that, since the impact method of the present application adopts the technical solution of the above-mentioned impact device embodiment, it at least has the beneficial effects brought by the technical solution of the above-mentioned embodiment, which will not be described one by one here.

[0117] In the above description, it should be understood that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In the description of this application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0118] The terms "first," "second," "third," "fourth," etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the numbers used in this way are interchangeable where appropriate so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or apparatus.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An impact device, characterized in that: It includes a first guard arm, a second guard arm, a support shoe assembly, a drive assembly, a phase change assembly and an impact piece; The first guard arm has a first guard arm cavity, and the drive assembly, the gripper assembly, at least a portion of the second guard arm, and at least a portion of the impact member are located in the first guard arm cavity; The drive assembly and the gripper assembly are both connected to the first guard arm; The second guard arm has a second guard arm cavity, the impact member is slidably connected to the second guard arm cavity, the impact member and a portion of the inner wall of the second guard arm form a receiving cavity, and the supply end of the phase change assembly is connected to the receiving cavity; The phase change assembly is used to provide a phase change medium to the accommodating chamber to push the impact member to move in a direction away from the accommodating chamber to an impact position of the member to be impacted; when the impact member stops impacting, the driving assembly is used to drive the second guard arm to move relative to the first guard arm in the impact direction; the gripper assembly is used to support the first guard arm when the second guard arm is stationary relative to the first guard arm, and is used to separate from the first guard arm when the second guard arm moves relative to the first guard arm; The driving assembly includes a driving member and a transmission member, and the driving member is connected to the transmission member; The driving member is connected to the first guard arm; the transmission member is arranged in the first guard arm cavity; The driving member is used to drive the transmission member, so that the transmission member drives the second guard arm to move relative to the first guard arm along the impact direction; The transmission member includes a screw and a nut that are threaded together; The first end of the lead screw is connected to the driving end of the driving member; the extending direction of the lead screw is parallel to the extending direction of the first guard arm; the nut is connected to the second guard arm; The phase change assembly includes a shell and a fracturing tube. There are multiple fracturing tubes, each of which is disposed in the shell. The shell is provided with a shell opening, and the fracturing openings of the fracturing tubes are communicated with the accommodating cavity through the shell opening. The plurality of fracturing tubes are configured to sequentially complete multiple phase changes and sequentially provide the phase change medium multiple times to the accommodating chamber, so as to cause the impact member to move multiple times in a direction away from the accommodating chamber.

2. The impact device according to claim 1, characterized in that The driving components include two, and the two driving components are respectively arranged on opposite sides of the second guard arm; Alternatively, the drive components include at least three, and at least three of the drive components are spaced apart along the circumference of the second guard arm.

3. The impact device according to claim 1, characterized in that The gripper shoe assembly includes a gripper shoe abutment and a gripper shoe connector. The gripper shoe abutment abuts against the inner wall surface of the first guard arm. The first end of the gripper shoe connector is rotatably connected to the gripper shoe abutment, and the second end of the gripper shoe connector is rotatably connected to the second guard arm.

4. The impact device according to claim 3, characterized in that The two support shoe abutments and the two support shoe connectors each include two, and the two support shoe abutments are respectively arranged on opposite sides of the first guard arm, and respectively abut against the inner wall surfaces on opposite sides of the first guard arm; the two support shoe connectors are rotatably connected near one end of the second guard arm, and are rotatably connected to the second guard arm, and the extension directions of the two support shoe connectors intersect, and the inner angle of the extension direction angle of the two support shoe connectors is located on the side away from the second guard arm.

5. The impact device according to claim 4, characterized in that It also includes an elastic member, wherein both ends of the elastic member are respectively connected to the two support shoe connectors and connected to a side of the support shoe connector facing away from the second guard arm; And / or, the second guard arm further includes a telescopic member, a first end of the telescopic member is rotatably connected to the support shoe connector, and a second end of the telescopic member is connected to the second guard arm.

6. The impact device according to claim 1, characterized in that The second arm guard also includes a mounting piece and an arm guard tube; The arm guard tube has an arm guard opening, and the impact member is configured to move in a direction away from the accommodating cavity through the arm guard opening; The mounting piece is arranged on a side of the arm guard tube away from the arm guard opening, and the phase change component and the nut are arranged on the mounting piece.

7. An impact method, characterized in that: The impact device according to any one of claims 1 to 6, wherein the impact method comprises the following steps: Controlling the phase change assembly to provide phase change medium to the accommodating chamber to push the impact member to move in a direction away from the accommodating chamber to an impact position of the member to be impacted; controlling the gripper assembly to support the first guard arm when the first guard arm is stationary relative to the second guard arm; Controlling the driving assembly to drive the second guard arm to move relative to the first guard arm along the impact direction; controlling the gripper assembly to separate from the first guard arm when the first guard arm moves relative to the second guard arm along the impact direction; The steps of the phase change assembly providing the phase change medium, the shoe assembly supporting the first guard arm, the driving assembly driving the second guard arm to move along the impact direction, and the shoe assembly disengaging from the first guard arm are repeated in sequence until the impact member moves to the target impact position of the member to be impacted.

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