Automatic grounding device of walking type pile driver

Abstract

The invention discloses an automatic grounding device of a walking type pile driver, which relates to the technical field of pile drivers and comprises a frame body, a grounding electrode, a first driving part, a second driving part, a monitoring system and a control system, the frame body is movably connected with the machine body, and the first driving piece is used for driving the frame body to move; the grounding electrode is detachably and movably connected with the frame body, and the second driving piece is used for driving the grounding electrode to move; the rack body has a use state and a storage state in the moving process, and the grounding electrode is in a vertical state when the rack body is in the use state; the monitoring system is arranged on the frame body, the frame body is conductive with the machine body and the grounding electrode, and the monitoring system is used for monitoring a resistance value; and the control system is arranged on the machine body. Reliable grounding of the walking type pile driver can be rapidly and conveniently achieved, and therefore the using safety of the walking type pile driver is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of pile drivers, and in particular to an automatic grounding device for a walking pile driver. Background Technology

[0002] A tracked pile driver (also known as a crawler-type pile driver) refers to a pile driver that uses a tracked walking system. The tracked walking system consists of an electric motor, a planetary reducer, four drive wheels with a track, carrier rollers, track rollers, tension rollers, and combined track plates. It is safe and reliable, allowing for free rotation and movement. The track assembly and track rollers are imported as a complete set, featuring high strength, good elasticity and wear resistance, and a long service life. The upper working mechanism adopts a three-point support structure, enabling rapid movement and positioning, safety, stability, and high construction efficiency. It is of high quality, flexible in movement and convenient in positioning. Furthermore, the electrical and hydraulic systems are all centrally controlled, making operation convenient and reducing the labor intensity of workers.

[0003] During the use of walking pile drivers, because they have multiple power transmission and power consumption devices, the outer casing of the machine needs to be reliably grounded to reduce the probability of lightning strikes and equipment failures caused by static electricity accumulation, while ensuring the safety of construction personnel and reducing the risk of electric shock.

[0004] Currently, grounding typically involves driving a conductive rod-shaped grounding electrode into the ground and then connecting the casing of the device to the grounding electrode via a wire. However, driving the grounding electrode into the ground requires multiple construction workers to continuously strike it with hammers and other tools, which is time-consuming, labor-intensive, and involves a large amount of work.

[0005] Therefore, there is an urgent need for an automatic grounding device that is easy to operate, quick to operate, and reliable in grounding. Summary of the Invention

[0006] This application provides an automatic grounding device for a walking pile driver, which can quickly and easily achieve reliable grounding of the walking pile driver, thereby effectively improving the safety of using the walking pile driver.

[0007] This application provides an automatic grounding device for a walking pile driver, which adopts the following technical solution: An automatic grounding device for a walking pile driver is installed on the back of the machine body and includes a frame, a grounding electrode, a first drive component, a second drive component, a monitoring system, and a control system. The frame is movably connected to the body, the first driving member is disposed on the body, and the first driving member is used to drive the frame to move; The grounding electrode is detachably and movably connected to the frame, and the second driving member is used to drive the grounding electrode to move relative to the frame; The frame has two states during its operation: use and storage. When the frame is in use, the grounding electrode is in a vertical position. The monitoring system is mounted on the frame, and the frame, the machine body, and the grounding electrode are all electrically conductive, and the monitoring system is used to monitor the resistance value; The control system is mounted on the machine body and is used to control the first drive component, the second drive component, and the monitoring system.

[0008] By adopting the above technical solution, when the walking pile driver needs to be grounded, the control system only needs to control the first drive component to rotate the frame to the working state, and then control the second drive component to drive the grounding electrode to be inserted into the ground. During this process, the monitoring system monitors the resistance value of the grounding line formed by the machine body through the frame and the grounding electrode in real time until the grounding electrode is inserted until the resistance value meets the grounding requirements and then stops. Afterwards, the second drive component drives the grounding electrode to be pulled out. When the walking pile driver does not need to be grounded, the frame will be in a retracted state, effectively reducing the space occupied by the automatic grounding device, thereby effectively reducing the probability that the automatic grounding device will affect the movement and other operations of the walking pile driver.

[0009] Optionally, the frame is rotatably connected to the body, its rotation axis is horizontal, and the direction in which the second driving member drives the grounding electrode to move is perpendicular to the rotation axis of the frame.

[0010] By adopting the above technical solution, the frame can be rotated upwards for storage and downwards for use, which can further improve the space utilization rate when the automatic grounding device is stored, and at the same time effectively reduce the impact of the automatic grounding device on the space around the machine when it is in use.

[0011] Optionally, the second drive member is movably connected to the frame, and its direction of movement is parallel to the direction of movement of the grounding electrode.

[0012] By adopting the above technical solution, the second driving component can also move downward relative to the frame during the process of driving the grounding electrode to be inserted into the ground, so that it can maintain the function of driving the grounding electrode to be inserted, thereby effectively extending the travel of the automatic grounding device to insert the grounding electrode into the ground, and thus effectively improving the reliability and stability of the automatic grounding device to effectively ground.

[0013] Optionally, the grounding electrode is retractable and adjustable, and the grounding electrode automatically positions itself after retraction and adjustment.

[0014] By adopting the above technical solution, when the walking pile driver needs to be grounded, the grounding electrode can be extended to meet the grounding requirements; when the walking pile driver does not need to be grounded, the grounding electrode can be shortened, thereby further reducing the space occupied by the automatic grounding device.

[0015] Optionally, the frame is rotatably connected to the machine body, with its rotation axis being vertical, and the grounding electrode is detachably installed at the end of the frame away from the machine body in a vertical position.

[0016] By adopting the above technical solution, during the process of the first driving component driving the frame to rotate to the working state, it can also adjust the distance between the grounding electrode insertion position and the machine body, so as to facilitate its insertion into the ground by avoiding obstacles on the ground or underground, ensuring grounding reliability and efficiency, and reducing the probability of grounding electrode being damaged during insertion into the ground.

[0017] Optionally, the monitoring system is located on the frame near the grounding electrode and is used to monitor the distribution of rock inside the soil.

[0018] By adopting the above technical solution, the distribution of rocks inside the soil can be monitored by the monitoring system, which can further facilitate the insertion of the grounding electrode to avoid underground obstacles, thereby further improving the reliability of the automatic grounding device in achieving grounding.

[0019] Optionally, the grounding electrode is slidably connected to the frame, and it automatically positions itself after it stops sliding.

[0020] By adopting the above technical solution, the automatic grounding device can conveniently control the grounding electrode to slide to the required position according to whether it is used for grounding, thereby further improving the automation level of the automatic grounding device and thus further improving the convenience of the automatic grounding device to achieve grounding.

[0021] Optionally, the grounding electrode includes a rod body, multiple rotating seats, multiple force-bearing components, and multiple elastic components; The rotating seat is rotatably disposed on one side of the rod, and its rotation axis is perpendicular to the axis of the rod. The plurality of rotating seats are distributed at equal intervals along the axis of the rod. Each of the multiple rotating seats, multiple force-bearing components, and multiple elastic components corresponds one-to-one; one end of each force-bearing component is rotatably connected to the rotating seat, and its rotation axis is perpendicular to the rotation axis of the rotating seat; the other end of each force-bearing component is used by the second driving component to apply force to it, and the stroke of the second driving component driving the grounding electrode to move is not less than the distance between adjacent rotating seats; both ends of each elastic component are connected to the force-bearing component and the rotating seat respectively, and it is used to drive the force-bearing component to maintain a position perpendicular to the rod body; The force-bearing component is restricted during its rotation relative to the rotating seat; when the force-bearing component rotates to its limit position in one direction, it comes into contact with and abuts against the rod; when the force-bearing component rotates to its limit position in another direction, the end of the force-bearing component away from the rotating seat is subjected to a force by the second driving component.

[0022] By adopting the above technical solution, during the process of inserting and pulling the ground electrode into the ground, the second driving component will apply force to multiple force-bearing components in sequence, thereby driving the ground electrode to be inserted or pulled out at equal distances each time, thus effectively improving the efficiency and effect of the second driving component in driving the ground electrode to be inserted and pulled out.

[0023] Optionally, the grounding electrode further includes a linkage component for actuating multiple rotating seats, and the multiple rotating seats rotate in the same direction and synchronously through the linkage component.

[0024] By adopting the above technical solution, construction personnel can easily adjust the position of multiple force-bearing components on multiple rotating seats according to the need to insert or remove the grounding electrode. When the grounding electrode needs to be removed after insertion, the force-bearing components located inside the soil will rotate during the rotation of multiple rotating seats, causing the soil around the rod to loosen, thus facilitating the subsequent removal of the grounding electrode.

[0025] Optionally, the rotating seat is located on one side of the rod along the frame away from the machine body, and a plurality of clearance spaces are provided on one side of the rod for the force-bearing member to move in and out, and when the force-bearing member contacts and abuts against the rod in the clearance space, it forms an integral part with the rod.

[0026] By adopting the above technical solution, the space occupied by the automatic grounding device after it is stored can be further reduced, and the difficulty of inserting the grounding electrode into the ground can be effectively reduced. This makes it easier for the force-bearing component to overcome the force of the elastic component and rotate to the limit position before being inserted into the ground along with the rod.

[0027] In summary, this application includes at least one of the following beneficial effects: 1. It can quickly and easily achieve reliable grounding of walking pile drivers, thereby effectively improving the safety of walking pile driver use; 2. The automatic grounding device can be easily stored away when not in use, effectively reducing its space occupation and thus reducing the probability of it affecting the movement and operation of the walking pile driver; 3. It allows the grounding electrode to be easily inserted into the ground at a suitable location based on the distribution of obstacles on the ground and underground, thereby effectively improving the reliability and stability of the grounding electrode insertion into the ground; 4. It enables the grounding electrode to be smoothly inserted into and pulled out of the ground, effectively improving the efficiency and effectiveness of inserting and pulling out the grounding electrode. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a walking pile driver according to Embodiment 1; Figure 2 This is a schematic diagram of the structure of an automatic grounding device for a walking pile driver in use, as shown in Example 1. Figure 3 This is a cross-sectional view of an automatic grounding device for a walking pile driver in use, as described in Embodiment 1. Figure 4 This is a schematic diagram of the structure of an automatic grounding device for a walking pile driver when it is stored in Embodiment 1; Figure 5 This is a schematic diagram of the structure of an automatic grounding device for a walking pile driver in use, as shown in Embodiment 2. Figure 6 This is a schematic diagram of the structure of an automatic grounding device for a walking pile driver when it is stored in Embodiment 2; Figure 7 This is a schematic diagram of the structure when the bottom of the grounding electrode is inserted into the ground in Example 2; Figure 8 This is a cross-sectional view of the grounding electrode inserted into the ground in Example 2; Figure 9 This is a cross-sectional view of the grounding electrode being pulled out in Example 2.

[0029] Explanation of reference numerals in the attached drawings: 1. Body; 2. Frame; 3. Grounding electrode; 31. Rod; 311. Clearance space; 32. Rotating seat; 33. Force-bearing component; 34. Elastic component; 35. Linkage assembly; 4. First driving component; 5. Second driving component; 51. Contact part; 6. Monitoring system; 7. Control system. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail. Example

[0031] This application discloses an automatic grounding device for a walking pile driver, which facilitates grounding of the walking pile driver during use, reduces the probability of lightning strikes, reduces the probability of equipment failure due to static electricity accumulation, and ensures the safety of construction personnel by reducing the risk of electric shock.

[0032] Reference Figure 1 and Figure 2 The automatic grounding device is installed on the back of the machine body 1, and the piling structure is installed on the head of the machine body 1. In this embodiment, the machine body 1 is preferably rectangular in shape, and the automatic grounding device is located at one end of the length of the machine body 1. Since the walking piling machine is the prior art in this field, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0033] Reference Figure 2 and Figure 3The automatic grounding device includes a frame 2 and a grounding electrode 3 for forming a grounding line between the machine body 1 and the soil, a first drive 4 for picking up and storing the frame 2, a second drive 5 for driving the grounding electrode 3 to be inserted into the ground and pulled out, a monitoring system 6 for monitoring the grounding effect, and a control system 7 for realizing automatic grounding.

[0034] Reference Figure 2 and Figure 4 The frame 2 is rotatably mounted on the back of the machine body 1 near its width direction. Its rotation axis is parallel to the length direction of the machine body 1 and perpendicular to its own length direction. The frame 2 is restricted in its rotation relative to the machine body 1. When the frame 2 rotates to two extreme positions relative to the machine body 1, the automatic grounding device is in the working state and the storage state, respectively. When the frame 2 rotates upward to the extreme position, it is in the storage state and its length direction is vertical. When the frame 2 rotates downward to the extreme position, it is in the working state and its length direction is horizontal. At this time, the frame 2 maintains a safe distance from the ground.

[0035] Reference Figure 2 and Figure 3 The first driving component 4 is fixedly installed on the body 1 and is used to drive the frame 2 to rotate relative to the body 1. In this embodiment, the first driving component 4 is preferably a hydraulic motor, and preferably the first driving component 4 is fixedly installed inside the body 1; since hydraulic motors are common prior art, they will not be described in detail here, and are only briefly shown in the accompanying drawings.

[0036] Reference Figure 2 and Figure 4 The grounding electrode 3 has a rod-like structure, which is telescopically adjustable along its length and can self-position itself to maintain its current length after telescopic adjustment. One end of its length has a tapered structure to facilitate its insertion into the ground, and the other end is its telescopic adjustment end. In this embodiment, the grounding electrode 3 is preferably composed of a three-stage high-strength alloy steel pipe sleeve, with a maximum extended length of 2.5 meters and a retracted length of only 0.8 meters. Its surface is galvanized to improve conductivity and corrosion resistance. Since the grounding electrode 3 with the above functions is a common existing technology, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0037] The grounding electrode 3 is detachably connected to the frame 2, and can move relative to the frame 2 after it is installed on the frame 2. When the frame 2 rotates relative to the body 1 to the use state, the grounding electrode 3 can be installed on the frame 2 in a cone-shaped downward position, and the grounding electrode 3 is vertical to facilitate its insertion into the ground. When the frame 2 rotates from the storage state to the use state, the grounding electrode 3 will move in the space on one side of the body 1.

[0038] The second drive component 5 is movably mounted on the frame 2. Its direction of movement is perpendicular to the rotation axis of the frame 2. When the frame 2 rotates relative to the body 1 to the working state, its direction of movement is vertical, consistent with the direction of insertion and removal of the grounding electrode 3, and at this time it is located above the grounding electrode 3 mounted on the frame 2.

[0039] When the frame 2 rotates relative to the body 1 to the working state, the second drive member 5 is used to drive the grounding electrode 3 to insert into the ground and pull it out, that is, to drive the grounding electrode 3 to move along its own length direction. In this embodiment, the second drive member 5 is preferably a hydraulic cylinder, and the piston rod of the second drive member 5 is detachably connected to the telescopic end of the grounding electrode 3, which facilitates the second drive member 5 to drive the grounding electrode 3 to be pulled out; and preferably, the second drive member 5 moves relative to the frame 2 through a screw drive, so that the second drive member 5 can still drive the grounding electrode 3 to be inserted and pulled out by its own movement when the hydraulic system fails; since the second drive member 5 with the above functions is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0040] The monitoring system 6 is fixedly installed on the frame 2. When the grounding electrode 3 is inserted into the ground, the machine body 1 will be grounded through the frame 2 and the grounding electrode 3. During this process, the monitoring system 6 will monitor the resistance value of the grounding line in real time until the resistance value meets the grounding requirements, at which point the insertion of the grounding electrode 3 will stop. In this embodiment, the monitoring system 6 preferably will automatically prompt (such as with a buzzer alarm) when the detected resistance value is higher than a set threshold (≤10Ω). In practical applications, a device for injecting a resistance-reducing agent into the soil can also be installed around the monitoring system 6 to ensure that the resistance value of the grounding line meets the requirements. Since the monitoring system 6 with the above functions is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0041] The control system 7 is fixedly installed on the body 1 and is signal-connected to the first drive component 4, the second drive component 5, and the monitoring system 6, allowing construction personnel to control the automatic grounding device. The control system 7 analyzes the resistance value monitored by the monitoring system 6, thereby controlling the second drive component 5 during the process of driving the grounding electrode 3 into the ground to ensure the final grounding effect. In this embodiment, the control system 7 is preferably based on PLC programming, enabling one-button automatic grounding operation and possessing overload protection, position feedback, and fault diagnosis functions. Since the control system 7 with the above functions is common prior art, it will not be described in detail here, and only a brief representation is given in the accompanying drawings.

[0042] The implementation principle of the automatic grounding device for a walking pile driver according to an embodiment of this application is as follows: When the walking pile driver is moving or performing other operations that do not require grounding, the frame 2 will be in a retracted state with the frame rotated upward to its limit position, and the grounding electrode 3 will also be in a shortened state. At this time, the space occupied by the automatic grounding device is minimized, which can effectively reduce the probability of it affecting the movement and other operations of the walking pile driver. When the walking pile driver needs to be grounded, the construction personnel can operate the control system 7 to first control the first drive component 4 to drive the frame 2 to the working state, then control the grounding electrode 3 to extend, and then control the second drive component 5 to drive the grounding electrode 3 to insert into the ground while moving downward relative to the frame 2. During this process, the monitoring system 6 monitors the resistance value of the grounding line in real time. When the grounding electrode 3 is inserted into the ground until the resistance value meets the requirements, control the second drive component 5 to stop driving the grounding electrode 3 to insert into the ground. When the walking pile driver no longer needs to be grounded, control the second drive component 5 to drive the grounding electrode 3 to be pulled out. Example

[0043] Reference Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 lies in the frame 2, the first driving component 4, the grounding electrode 3, the second driving component 5, and the monitoring system 6.

[0044] One end of the frame 2 along its length is rotatably connected to the body 1. Its rotation axis is vertical and perpendicular to the length of the frame 2, and its rotatable connection position with the body 1 is close to the side of the width of the body 1. The frame 2 is restricted in its rotation relative to the body 1. When the frame 2 rotates to its limit position in the direction closer to the body 1, the frame 2 is in a retracted state, and at this time, the end of the frame 2 away from its own rotation axis is close to the other side of the width of the body 1. Afterward, after the frame 2 rotates away from the body 1, the frame 2 is in a usable state, and at this time, the frame 2 can be rotated and adjusted within a certain range to adjust the position of the grounding electrode 3 inserted into the ground.

[0045] The first driving component 4 is fixedly installed on one side of the body 1 along its length, and it is used to drive the frame 2 to rotate. In this embodiment, the first driving component 4 is preferably located above the frame 2.

[0046] Reference Figure 7 and Figure 8The grounding electrode 3 is a long rod structure, which is slidably installed on the end of the frame 2 away from the machine body 1. Its sliding direction is vertical and parallel to its own length direction. During the sliding process of the grounding electrode 3 relative to the frame 2, it can be positioned relative to the frame 2 after the sliding is completed. In this embodiment, the length of the grounding electrode 3 is preferably 2.5 meters to meet the requirement of being inserted into the ground to a certain depth. Moreover, after the grounding electrode 3 is slidably installed on the frame 2, the rotation of the grounding electrode 3 about its own axis is restricted, and the frame 2 has a structure for positioning the grounding electrode 3 at any time (such as a structure composed of a compression spring and abutment block). Since the structure with the above functions is a common prior art, it will not be described in detail here, and its expression is omitted in the drawings.

[0047] The grounding electrode 3 includes a rod body 31, multiple rotating seats 32, multiple force-bearing components 33, multiple elastic components 34, and a linkage assembly 35, and the multiple rotating seats 32, multiple force-bearing components 33, and multiple elastic components 34 correspond one-to-one.

[0048] The rotating seat 32 is rotatably installed on one side of the rod 31, and its rotation axis is perpendicular to the axis of the rod 31. Multiple rotating seats 32 are evenly distributed along the length of the rod 31. After the grounding electrode 3 is slidably installed on the frame 2, multiple rotating seats 32 are located on the side of the frame 2 away from its own rotation axis.

[0049] The force-bearing component 33 has a rod-like structure, with one end rotatably connected to the rotating seat 32 along its length. Its rotation axis is perpendicular to both the rotation axis of the rotating seat 32 and its own length direction. The force-bearing component 33 has a flat surface for receiving force and an arc surface adapted to the surface of the rod 31 on both sides along its thickness direction. The rod 31 has several clearance spaces 311 on the side where the rotating seat 32 is located, allowing the force-bearing component 33 to rotate in and out. In this embodiment, preferably, one clearance space 311 is provided on one side of the rod 31, and multiple force-bearing components 33 can move in and out of the clearance space 311.

[0050] Reference Figure 8 and Figure 9The rotation of the rotating seat 32 relative to the rod 31 is restricted, and the rotation of the force-bearing member 33 relative to the rotating seat 32 is also restricted. When the rotating seat 32 rotates to its limit position in one direction, the plane of the force-bearing member 33 will be above the arc surface. At this time, when the force-bearing member 33 rotates upward to its limit position, the length direction of the force-bearing member 33 is parallel to the length direction of the rod 31, and its plane can contact and abut against the rod 31, with the arc surface and the surface of the rod 31 fitting together to form an integral whole. At this time, when the force-bearing member 33 rotates downward to its limit position, the length direction of the force-bearing member 33 is perpendicular to the length direction of the rod 31, and its plane is away from the rotating seat 32. The seat 32 will be contacted by the second driving member 5 to apply force. When the rotating seat 32 rotates to its limit position in another direction, the plane of the force-bearing member 33 will be below the arc surface. At this time, when the force-bearing member 33 rotates upward to its limit position, the length direction of the force-bearing member 33 is perpendicular to the length direction of the rod 31. The part of its plane away from the rotating seat 32 will be contacted by the second driving member 5 to apply force. At this time, when the force-bearing member 33 rotates downward to its limit position, the length direction of the force-bearing member 33 is parallel to the length direction of the rod 31. Its plane can contact and abut against the rod 31, and the arc surface and the surface of the rod 31 can fit together to form an integral whole. In this embodiment, it is preferable that the outer side of the rotating seat 32 is used by the operator to control its rotation relative to the rod 31 using tools. Since the design with the above functions is a common existing technology (such as resistance-increasing texture, etc.), it will not be described in detail here, and it is omitted from the drawings.

[0051] Reference Figure 7 and Figure 8 The elastic element 34 is installed at the rotational connection position between the force-bearing element 33 and the rotating seat 32. Its two ends are fixedly connected to the force-bearing element 33 and the rotating seat 32 respectively, and it has the tendency to drive the force-bearing element 33 to rotate to its limit position in a direction away from the rod 31. In this embodiment, the elastic element 34 is preferably a torsion spring; since torsion springs are common prior art, they will not be described in detail here, and only its installation position is shown in the figure, and its structure is omitted.

[0052] The linkage component 35 is installed inside the rod body 31 and is used to link multiple rotating seats 32, so that the multiple rotating seats 32 rotate synchronously and in the same direction relative to the rod body 31. In this embodiment, preferably, the rotating seat 32 has a gear structure coaxial with its rotation axis inside the rod body 31, and preferably, the linkage component 35 is a synchronous structure that meshes with multiple gear structures simultaneously; since the linkage component 35 with the above functions is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0053] The second driving member 5 is fixedly installed on the frame 2, located above the frame 2 and close to the grounding electrode 3 slidably installed on the frame 2. The piston rod of the second driving member 5 has a contact portion 51 for contacting multiple force-bearing components 33. The top and bottom of the contact portion 51 are flat, which facilitates the stable application of force after it fits against the flat surface of the force-bearing component 33. In this embodiment, it is preferable that the second driving member 5 is located on the side of the grounding electrode 3 slidably installed on the frame 2 away from the rotation axis of the frame 2. The body of the second driving member 5 maintains a distance from the multiple force-bearing components 33, and the contact portion 51 at the end of the piston rod contacts the multiple force-bearing components 33 in sequence during the sliding process of the grounding electrode 3. It is also preferable that the stroke of the piston rod of the second driving member 5 is not less than the distance between adjacent rotating seats 32, so that the grounding electrode 3 can be driven to slide by applying force to the force-bearing component 33 during each reciprocating movement of the piston rod, and the process of inserting and pulling the grounding electrode 3 into the ground is more stable and continuous.

[0054] Reference Figure 8 and Figure 9 When the rotating seat 32 rotates relative to the rod 31 to the position where the force-bearing member 33 is in a position where its plane is above the arc surface, the grounding electrode 3 is in a state where the second driving member 5 can drive it to be inserted into the ground; when the rotating seat 32 rotates relative to the rod 31 to the position where the force-bearing member 33 is in a position where its plane is below the arc surface, the grounding electrode 3 is in a state where the second driving member 5 can drive it to be pulled out from the ground.

[0055] The monitoring system 6 is fixedly installed at the bottom of the frame 2 and located at the end of the frame 2 away from its own rotation axis. It can also monitor the rock distribution inside the soil within a certain area below it, thereby facilitating the first driving component 4 to avoid rocks inside the soil during the rotation and adjustment of the frame 2, and to find a suitable position for the grounding electrode 3 to be inserted into the ground. In this embodiment, since the monitoring system 6 with the above functions is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0056] The implementation principle of the automatic grounding device for a walking pile driver according to an embodiment of this application is as follows: When the walking pile driver is moving or performing other operations that do not require grounding, the frame 2 will be in a retracted state that rotates to its limit position towards the machine body 1, and the grounding electrode 3 will also be in a state that slides upward relative to the frame 2 until it is completely above the ground. At this time, the space occupied by the automatic grounding device is minimized, which can effectively reduce the probability of it affecting the movement and other operations of the walking pile driver. When a walking pile driver needs to be grounded, the construction personnel can operate the control system 7 to first control the first drive component 4 to drive the frame 2 to the working state. At the same time, based on the underground rock distribution monitored by the monitoring system 6, the position for inserting the grounding electrode 3 into the ground is determined. After determining the position, the multiple rotating seats 32 are rotated and adjusted so that the multiple force-bearing components 33 are all in a position where the plane is above the arc surface. Then, the second drive component 5 is controlled to drive the contact part 51 on its piston rod to reciprocate, thereby applying downward force to the multiple force-bearing components 33 in sequence, thus driving the rod 31 to insert into the ground. During this process, the upward movement of the contact part 51 can drive the force-bearing components 33 to overcome the corresponding elastic element 34. The force causes rotation, thereby switching the force applied to different force-bearing components 33. The force-bearing components 33 that are inserted into the ground along with the rod 31 can also rotate towards the rod 31 to the limit position after being subjected to the force of the soil and then enter the ground. After that, when the walking pile driver does not need to be grounded, the multiple rotating seats 32 are first controlled to rotate until the force-bearing components 33 are in a position where the plane is below the arc surface. During this process, the force-bearing components 33 located underground can loosen the soil around the rod 31. Then, the second driving component 5 is controlled to drive the contact part 51 on its piston rod to move back and forth, thereby applying an upward force to the multiple force-bearing components 33 in sequence, which can drive the rod 31 to be pulled out from the ground.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic grounding device for a walking pile driver, installed on the back of the machine body (1), characterized in that, It includes a frame (2), a grounding electrode (3), a first drive component (4), a second drive component (5), a monitoring system (6), and a control system (7); The frame (2) is movably connected to the body (1), the first drive member (4) is disposed on the body (1), and the first drive member (4) is used to drive the frame (2) to move. The grounding electrode (3) is detachably and movably connected to the frame (2), and the second driving member (5) is used to drive the grounding electrode (3) to move relative to the frame (2); The frame (2) has two states during its operation: use and storage. When the frame (2) is in use, the grounding electrode (3) is in a vertical state. The monitoring system (6) is installed on the frame (2). The frame (2) is conductive to the body (1) and the grounding electrode (3). The monitoring system (6) is used to monitor the resistance value. The control system (7) is mounted on the body (1) and is used to control the first drive unit (4), the second drive unit (5) and the monitoring system (6).

2. The automatic grounding device for a walking pile driver according to claim 1, characterized in that, The frame (2) is rotatably connected to the body (1), its rotation axis is horizontal, and the direction in which the second driving member (5) drives the grounding electrode (3) to move is perpendicular to the rotation axis of the frame (2).

3. The automatic grounding device for a walking pile driver according to claim 2, characterized in that, The second drive member (5) is movably connected to the frame (2), and its direction of movement is parallel to the direction of movement of the grounding electrode (3).

4. The automatic grounding device for a walking pile driver according to claim 2, characterized in that, The grounding electrode (3) is retractable and adjustable, and the grounding electrode (3) automatically positions itself after retraction and adjustment.

5. The automatic grounding device for a walking pile driver according to claim 1, characterized in that, The frame (2) is rotatably connected to the body (1), with its rotation axis being vertical, and the grounding electrode (3) is detachably installed at the end of the frame (2) away from the body (1) in a vertical position.

6. The automatic grounding device for a walking pile driver according to claim 5, characterized in that, The monitoring system (6) is located on the frame (2) near the grounding electrode (3) and is used to monitor the distribution of rocks inside the soil.

7. The automatic grounding device for a walking pile driver according to claim 5, characterized in that, The grounding electrode (3) is slidably connected to the frame (2), and it automatically positions itself after it stops sliding.

8. The automatic grounding device for a walking pile driver according to claim 7, characterized in that, The grounding electrode (3) includes a rod (31), multiple rotating seats (32), multiple force-bearing components (33) and multiple elastic components (34). The rotating seat (32) is rotatably disposed on one side of the rod (31), and its rotation axis is perpendicular to the axis of the rod (31). The multiple rotating seats (32) are evenly distributed along the axis of the rod (31). Each of the multiple rotating seats (32), multiple force-bearing components (33), and multiple elastic components (34) corresponds to one another; one end of the force-bearing component (33) is rotatably connected to the rotating seat (32), its rotation axis is perpendicular to the rotation axis of the rotating seat (32), and its other end is used by the second driving component (5) to apply force to it, and the stroke of the second driving component (5) driving the grounding electrode (3) to move is not less than the distance between adjacent rotating seats (32); both ends of the elastic component (34) are connected to the force-bearing component (33) and the rotating seat (32) respectively, and it is used to drive the force-bearing component (33) to maintain a position perpendicular to the rod (31); The force-bearing member (33) is restricted during its rotation relative to the rotating seat (32); when the force-bearing member (33) rotates to its limit position in one direction, it comes into contact with the rod (31); when the force-bearing member (33) rotates to its limit position in another direction, the end of the force-bearing member (33) away from the rotating seat (32) is subjected to a force by the second driving member (5).

9. The automatic grounding device for a walking pile driver according to claim 8, characterized in that, The grounding electrode (3) also includes a linkage component (35) for linking multiple rotating seats (32), and the multiple rotating seats (32) rotate in the same direction and synchronously through the linkage component (35).

10. An automatic grounding device for a walking pile driver according to claim 8, characterized in that, The rotating seat (32) is located on the side of the rod (31) away from the machine body (1) along the frame (2). A plurality of clearance spaces (311) are provided on one side of the rod (31) for the force-bearing member (33) to move in and out. When the force-bearing member (33) comes into contact with the rod (31) in the clearance space (311), it forms an integral part with the rod (31).

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