A mobile walking folding pin puller

Abstract

This invention relates to the field of pin pulling technology, specifically disclosing a mobile, folding pin puller, comprising: a walking mechanism, a control mechanism, a drive mechanism, and a mounting mechanism, and further comprising a pin pulling mechanism. The pin pulling mechanism includes an automatic telescopic part, a fixing member, a connecting member, and a drive member. The automatic telescopic part is connected to the mounting mechanism. The fixing member is connected to the automatic telescopic part through the connecting member. The fixing member can be fixed to the connector at the end of the pin shaft. The drive member is connected to the connecting member and can drive the connecting member to connect with the fixing member. When the pin shaft is struck, the drive member can drive the connecting member to separate from the fixing member. The mobile, folding pin puller of this invention can separate the fixing member and the connecting member to avoid damage to the electrical components on the pin puller caused by vibration transmitted to the pin puller, and eliminates the need to repeatedly fix the connector at the end of the pin shaft.

Description

Technical Field

[0001] This invention relates to the field of pin pulling technology, and specifically to a mobile walking folding pin pulling device. Background Technology

[0002] With industrial development, the machinery and equipment used in various engineering projects are becoming increasingly diverse and complex, resulting in many large-scale heavy-duty equipment. These large-scale heavy-duty equipment often contain multiple large components. Due to their large size and weight, these equipment are inconvenient to transport. Typically, these large components need to be transported to the construction site for reassembly and application. After the project is completed, the large-scale heavy-duty equipment needs to be disassembled and transported to another construction site for reassembly and application. Currently, most heavy-duty equipment uses pins to connect the components. These pins are usually T-shaped cylinders with connectors and connecting holes at their ends. The pins used in large-scale heavy-duty equipment are often much larger than those in ordinary machinery. This makes disassembling and assembling these large pins a difficult task that is hard to complete manually. Therefore, disassembly equipment is needed to disassemble the pins.

[0003] Chinese patent document CN110253267B discloses a disassembly device for a large pin shaft and its application, including a traveling trolley, a hydraulic cylinder pin-pulling device, a lifting platform, a lifting device, and a control console; the bottom of the lifting platform is mounted on the traveling trolley via a scissor mechanism, and the top of the lifting platform is provided with an I-shaped track; the bottom of the hydraulic cylinder pin-pulling device is placed on the I-shaped track via electric rollers; the front end of the hydraulic cylinder pin-pulling device is connected to a pin shaft clamping device, and the end of the hydraulic cylinder pin-pulling device is equipped with an image recognition processing device.

[0004] In operation, the trolley is moved to the side of the hydraulic support shaft to be disassembled via the control console. The lifting device is adjusted via the control console, and the hook of the lifting device is used to fix the hydraulic support section to be disassembled. Then, the CCD camera is activated via the control console to capture image information of the shaft to be disassembled and transmit the image information to the control console. The control console automatically adjusts the trolley, lifting platform, and electric rollers to coordinate the operation based on the feedback image information. Finally, the L-shaped clamping rod at the front end of the hydraulic cylinder pin-pulling device is aligned with the shaft to be disassembled. At the same time, the hydraulic cylinder outriggers extend to fix the entire device. Then, the piston rod of the hydraulic cylinder pin-pulling device extends outward, and the front end of the L-shaped clamping rod pushes the shaft outward a certain distance. The hydraulic cylinder outriggers retract, and the trolley is moved via the control console. The device moves to the other side of the hydraulic support, where a CCD camera again captures image information of the pin to be disassembled and transmits it to the control console. Based on the feedback image information, the control console automatically adjusts the traveling trolley, lifting platform, and electric rollers to coordinate their operation. Ultimately, the L-shaped clamping rod at the front of the hydraulic cylinder pin-pulling device aligns with the pin. Simultaneously, the hydraulic cylinder outriggers extend to secure the entire device. The control console then starts the micro motor, which opens the two parallel L-shaped clamping rods. The hydraulic cylinder drives the L-shaped clamping rods to the pin, where they clamp the protruding part of the pin and pull it outwards, completing the disassembly. The removed pin enters the sleeve. When the pin moves to the opening on one side of the sleeve, it rolls from the opening onto the pin recovery plate under the influence of gravity.

[0005] However, the aforementioned patent documents also have the following shortcomings: In order to facilitate the removal of the pin, the pin is often struck during the disassembly process to cause it to vibrate and loosen from the connecting structure. At this time, because the disassembly equipment is in contact with the pin connection, the electrical components on the disassembly equipment are easily damaged by the vibration transmitted from the pin. For T-shaped cylindrical pins with connectors at the ends and connecting holes at the connectors, the existing equipment's method of directly separating the disassembly equipment from the connector at the end of the pin can avoid the vibration on the pin being transmitted to the disassembly equipment. However, because the pin is vibrated, the angle of the connector at the end of the pin is easily offset, which means that the disassembly equipment needs to be readjusted and fixed to the connector at the end of the pin, making the operation too complicated. Summary of the Invention

[0006] This invention provides a mobile walking folding pin puller, which aims to solve the problem in related technologies that the electrical components at the pin connection point of the disassembly device are easily damaged by vibration transmitted from the pin.

[0007] The mobile walking folding pin puller of the present invention includes a walking mechanism, a control mechanism, a drive mechanism, and a mounting mechanism, and further includes a pin pulling mechanism. The pin pulling mechanism includes an automatic telescopic part, a fixing member, a connecting member, and a drive member. The automatic telescopic part is connected to the mounting mechanism. The fixing member is connected to the automatic telescopic part through the connecting member. The fixing member can be fixed to the connector at the end of the pin. The drive member is connected to the connecting member and can drive the connecting member to connect with the fixing member. When the pin is struck, the drive member can drive the connecting member to separate from the fixing member.

[0008] Beneficial effects: When disassembling the pin, the control mechanism moves the walking mechanism to the set working area. Then, the control mechanism continues to control the drive mechanism and the mounting mechanism to move the pin-pulling mechanism to the connector at the end of the pin. Subsequently, the automatic telescopic part drives the fixing part, the connecting part, and the drive part to move towards the pin, so that the connector at the end of the pin extends into the fixing part and is fixed by the fixing part to the connector at the end of the pin. Finally, the automatic telescopic part is activated to drive the fixing part, the connecting part, and the drive part to move away from the connecting structure, thereby removing the pin from the connecting structure. When it is necessary to knock the pin, the drive part drives the connecting part to separate the connecting part from the fixing part, so as to avoid the vibration of the pin caused by knocking damaging the electrical components on the pin puller, and there is no need to repeatedly fix the connector at the end of the pin.

[0009] Preferably, the fixing component includes a fixing cylinder, a fixing part, and a connecting hose. The fixing cylinder has a cavity inside, and multiple mounting holes are provided on the inner wall of the fixing cylinder. All mounting holes are connected to the cavity. Multiple fixing parts are provided, and the multiple fixing parts are respectively inserted into the multiple mounting holes. One end of the connecting hose is connected to the fixing cylinder, and the other end of the connecting hose is connected to the driving component.

[0010] Its effect is as follows: the driving component can deliver gas into the cavity through the connecting hose, thereby increasing the air pressure in the cavity, which pushes the fixing part to move in the direction of extending out of the mounting hole until the fixing part passes through the connecting hole on the connector head at the end of the pin, thereby fixing the connector head at the end of the pin, so as to facilitate the subsequent pin removal operation. The fixing part that does not pass through the connecting hole abuts against the connector head at the end of the pin, thereby providing auxiliary positioning for the fixing cylinder, ensuring that the connector and the fixing part are separated, and that the connector can be smoothly reconnected to the fixing part after the pin is vibrated.

[0011] Preferably, the first connecting hose is in a relaxed state and is connected to the cavity.

[0012] Its effect is that by using a loose connecting hose, the risk of vibration being transmitted to the drive unit can be greatly reduced, thus avoiding damage to the drive unit due to vibration.

[0013] Preferably, the connecting hose is made of rubber material.

[0014] Preferably, the inner wall of the mounting hole is provided with an annular protrusion at one end near the axis of the fixed cylinder, and the fixing part passes through the protrusion.

[0015] Its effect is that the protrusions prevent the fixing part from completely disengaging from the mounting hole.

[0016] Preferably, the fixed cylinder has an installation cavity at one end near the connector, and the inner wall of the installation cavity has an annular blocking part at one end near the connector.

[0017] Its effect is that the mounting cavity and the blocking part facilitate the connection between the connector and the fixed cylinder.

[0018] Preferably, the connector includes a mounting base, a connecting part, and two connecting hoses. The mounting base is connected to the telescopic end of the automatic telescopic part. The interior of the mounting base is provided with a chamber near the fixed cylinder. The inner wall of the chamber is provided with through holes, and the connecting part is inserted into the two through holes.

[0019] Its effect is as follows: when the pin needs to be hammered, before hammering the pin, the drive unit is activated to draw air out of the chamber through the connecting hose 2, so that the connecting part can be inserted into the chamber. At this time, the blocking part no longer obstructs the connecting part. Then, the automatic telescopic part is activated to drive the mounting base to separate from the fixed cylinder, so as to avoid the vibration generated when the pin is hammered from being transmitted to the connecting part.

[0020] Preferably, one end of the second connecting hose is connected to the mounting base, the other end of the second connecting hose is connected to the drive component, and the second connecting hose is in communication with the chamber.

[0021] Preferably, the driving component includes an air pump one and an air pump two, both of which are connected to the mounting base. The air pump one is connected to a connecting hose one, and the air pump two is connected to a connecting hose two.

[0022] Its effect is that: air pump one can deliver gas into the cavity through connecting hose one, or extract gas from the cavity; air pump two can deliver gas into the cavity through connecting hose two, or extract gas from the cavity.

[0023] Preferably, the installation mechanism includes a mounting frame, a mounting cylinder, and a drive unit. The mounting frame is connected to the drive mechanism, the mounting cylinder is slidably connected to the mounting frame, one end of the drive unit is hinged to the mounting cylinder, the other end of the drive unit is hinged to the mounting frame, and the automatic telescopic part is connected to the mounting cylinder.

[0024] Its effect is that the mounting sleeve can shield the disassembled pin. Once the pin falls off the pin-pulling mechanism, the mounting sleeve supports and stores the pin, preventing it from falling directly to the ground and enhancing the safety of disassembling the pin.

[0025] The beneficial effects of this invention are:

[0026] 1. When the pin needs to be hammered, before hammering the pin, the drive unit is activated to extract the air from the chamber, allowing the connecting part to extend into the chamber. At this time, the blocking part no longer obstructs the connecting part. Then, the automatic telescopic part is activated to separate the mounting base from the fixed cylinder. At this time, the connecting hose is still in a loose state. When the pin is hammered, the vibration generated by the pin will not be transmitted to the connecting part, and the connecting hose is still in a loose state to avoid damage to the electrical components on the pin puller caused by the vibration of the pin being hammered. Moreover, there is no need to repeatedly fix the connector at the end of the pin. For T-shaped cylindrical pins with connectors and connecting holes at the ends, compared to the prior art method of directly separating the pin puller from the connecting hole on the connecting part at the end of the pin, the pin puller in this application does not need to be adjusted multiple times and re-aligned with the connecting hole on the connecting part at the end of the pin, thus improving the pin pulling efficiency of the pin puller.

[0027] 2. The mounting sleeve can shield the disassembled pin. Once the pin falls off the pin-pulling mechanism, the mounting sleeve supports and stores the pin, preventing it from falling directly to the ground and enhancing safety during pin disassembly. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0029] Figure 2 This is a schematic diagram of the planar structure of the present invention.

[0030] Figure 3 This is a planar structural diagram of the mounting mechanism and the pin-pulling mechanism of the present invention.

[0031] Figure 4 This is a schematic diagram of the planar structure of the pin-pulling mechanism of the present invention.

[0032] Figure 5 This is a cross-sectional structural schematic diagram of the pin-pulling mechanism of the present invention.

[0033] Figure 6 This is the invention Figure 5 A magnified structural diagram of point A in the middle.

[0034] Figure 7This is a state diagram of the pin-pulling mechanism and the pin shaft of the present invention.

[0035] Figure label:

[0036] 1. Walking mechanism; 11. Mounting platform; 12. Walking wheels; 13. Stopping component; 2. Control mechanism; 3. Drive mechanism; 4. Mounting mechanism; 41. Mounting bracket; 42. Mounting cylinder; 43. Drive unit; 5. Pin pulling mechanism; 51. Automatic telescopic part; 52. Fixing component; 521. Fixing cylinder; 522. Cavity; 523. Mounting hole; 524. Fixing part; 525. Mounting cavity; 526. Protrusion; 527. Blocking part; 528. Connecting hose one; 53. Connecting component; 531. Mounting seat; 532. Chamber; 533. Connecting part; 534. Connecting hose two; 54. Drive unit; 541. Air pump one; 542. Air pump two. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] like Figures 1 to 7 As shown, the mobile walking folding pin puller of the present invention includes a walking mechanism 1, a control mechanism 2, a drive mechanism 3, a mounting mechanism 4, and a pin pulling mechanism 5. The control mechanism 2 and the drive mechanism 3 are both connected to the walking mechanism 1, the mounting mechanism 4 is connected to the drive mechanism 3, and the pin pulling mechanism 5 is mounted on the mounting mechanism 4. The control mechanism 2 can control the operation of the walking mechanism 1, the drive mechanism 3, the mounting mechanism 4, and the pin pulling mechanism 5. The walking mechanism 1 is used to drive the pin pulling mechanism 5 to move to a set working area. The drive mechanism 3 is used to align the pin pulling mechanism 5 with the end of the pin shaft. The mounting mechanism 4 is used to provide mounting for the pin pulling mechanism 5. The pin pulling mechanism 5 can disassemble the pin shaft to... The pin is disengaged from the connecting structure. When the pin is struck to vibrate and loosen from the connecting structure, the pin-pulling mechanism 5 can disassemble, thereby cutting off the transmission of the pin vibration. This prevents the vibration from being transmitted to the electrical components on the pin-pulling device, thus avoiding damage to the electrical components on the pin-pulling device. For T-shaped cylindrical pins with connectors and connecting holes at the ends, compared to the prior art where the pin-pulling device is directly separated from the connecting hole on the end of the pin, the pin-pulling device in this application does not require multiple adjustments and re-alignment with the connecting hole on the end of the pin, thus improving the pin-pulling efficiency of the pin-pulling device.

[0039] In use, first start the walking mechanism 1 to move the entire pin puller to the set working area. Then start the drive mechanism 3 to drive the mounting mechanism 4 and the pin pulling mechanism 5 to move the pin pulling mechanism 5 to the end of the pin shaft. The end of the pin shaft has a connector that can be connected to the pin pulling mechanism 5, and the connector is provided with a connection hole. Then drive the pin pulling mechanism 5 to fix it to the connector at the end of the pin shaft. Finally, start the pin pulling mechanism 5 to move away from the pin shaft, thereby pulling out the pin shaft.

[0040] like Figure 1 and Figure 2 As shown, the walking mechanism 1 includes a mounting platform 11, walking wheels 12, and a stop component 13. The control mechanism 2 and the drive mechanism 3 are both mounted on the mounting platform 11. There are four walking wheels 12, which are respectively connected to the four ends of the bottom of the mounting platform 11. The control mechanism 2 can control the operation of the four walking wheels 12 to realize the automatic movement of the walking mechanism 1. The stop component 13 is connected to the mounting platform 11. The stop component 13 can abut against the ground after the four walking wheels 12 stop running to enhance the stability of the pin puller during operation.

[0041] The control mechanism 2 starts the four traveling wheels 12, which drive the mounting platform 11 to move until the pin puller moves to the set working area.

[0042] like Figures 1 to 3 As shown, the mounting mechanism 4 includes a mounting frame 41, a mounting cylinder 42, and a drive unit 43. The mounting frame 41 is connected to the drive mechanism 3. The mounting cylinder 42 is slidably connected to the mounting frame 41. The drive unit 43 is a cylinder. One end of the drive unit 43 is hinged to the mounting cylinder 42, and the other end of the drive unit 43 is hinged to the mounting frame 41. The pin-pulling mechanism 5 is connected to the mounting cylinder 42. Activating the drive unit 43 can drive the mounting cylinder 42 to slide at the upper limit of the mounting frame 41. When the pin is too long, the travel of the pin-pulling mechanism 5 can be increased, thereby ensuring that the pin can be removed, so as to avoid the pin being unable to be removed because its length exceeds the maximum travel length of the pin-pulling mechanism 5.

[0043] After the pin-pulling mechanism 5 is fixed to the connector at the end of the pin shaft, the pin-pulling mechanism 5 is activated to pull the pin shaft. After the pin-pulling mechanism 5 moves to its maximum stroke, if the pin shaft is not completely separated from the connecting structure, the drive unit 43 is activated to move the mounting cylinder 42 away from the connecting structure, thereby driving the pin-pulling mechanism 5 to continue moving. The pin-pulling mechanism 5 continues to pull the pin shaft until the pin shaft is completely separated from the connecting structure. At the same time, the disassembled pin shaft is stored in the mounting cylinder 42, and the pin shaft does not contact the inner wall of the mounting cylinder 42. The mounting cylinder 42 protects the pin shaft. Once the pin shaft falls off the pin-pulling mechanism 5, the mounting cylinder 42 supports and stores the pin shaft to prevent the pin shaft that falls off the pin-pulling mechanism 5 from falling directly to the ground, thus enhancing the safety of disassembling the pin shaft.

[0044] like Figure 1 , Figures 3 to 7 As shown, the pin-pulling mechanism 5 includes an automatic telescopic part 51, a fixing member 52, a connecting member 53, and a driving member 54. The automatic telescopic part 51 is a cylinder and is connected inside the mounting cylinder 42. The telescopic end of the automatic telescopic part 51 does not contact the mounting cylinder 42. The fixing member 52 is connected to the telescopic end of the automatic telescopic part 51 through the connecting member 53. The driving member 54 is connected to the connecting member 53 and is used to drive the fixing member 52 and the connecting member 53. When the driving member 54 drives the fixing member 52, it can fix the fixing member 52 to the connector at the end of the pin, so that... When the drive member 54 drives the connector 53 to pull the pin, the fixing member 52 can be connected to the connector 53. The automatic telescopic part 51 can pull the connector 53 to move away from the connecting structure, and the connector 53 drives the fixing member 52 to move away from the connecting structure, so that the fixing member 52 pulls the pin and separates it from the connecting structure. After the pin is completely separated from the connecting structure, the drive mechanism 3 drives the pin-pulling mechanism 5 to move down to a low position. At this time, the fixing member 52 releases the fixed connection to the pin, so that the pin can be removed.

[0045] The drive mechanism 3 is activated to move the pin-pulling mechanism 5 so that the fixing member 52 is aligned with the connector at the end of the pin. Then, the automatic telescopic part 51 is activated to move the connecting member 53, the fixing member 52, and the drive member 54 closer to the connector at the end of the pin. Subsequently, the fixing member 52 is activated by the drive member 54 to fix the fixing member 52 to the connector at the end of the pin. At the same time, the automatic telescopic part 51 is activated to move the connecting member 53, the fixing member 52, and the drive member 54 away from the connecting structure. Before the pin needs to be struck, the drive member 54 is activated to drive the connecting member 53 to disconnect the connection between the connecting member 53 and the fixing member 52. The automatic telescopic part 51 then separates the connecting member 53 from the fixing member 52 so that the vibration generated after the pin is struck will not be transmitted to the electrical components on the pin-pulling mechanism 5, thereby ensuring that the electrical components on the pin-pulling mechanism 5 can be used normally.

[0046] Continue to refer to Figure 1 , Figures 3 to 7As shown, the fixing member 52 includes a fixing cylinder 521, a fixing part 524, and a connecting hose 528. The fixing cylinder 521 has a cavity 522, and its inner wall has multiple mounting holes 523, all of which communicate with the cavity 522. Multiple fixing parts 524 are inserted into the mounting holes 523 respectively. The fixing parts 524 are T-shaped. One end of the connecting hose 528 is connected to the fixing cylinder 521, and the other end is connected to the driving member 54. The connecting hose 528 is in a relaxed state and communicates with the cavity 522. The connecting hose 528 is made of rubber. When the driving member 54 is activated, gas is supplied to the cavity 522 through the connecting hose 528, increasing the air pressure inside the cavity 522. This increases the pressure, thereby pushing the fixing part 524 towards the direction extending out of the mounting holes 523 until the fixing part 524 passes through... The connecting hole on the connector head at the end of the pin shaft is used to fix the connector head at the end of the pin shaft, so as to facilitate the subsequent pin removal operation. The fixing part 524 that does not pass through the connecting hole abuts against the connector head at the end of the pin shaft, thereby providing auxiliary positioning for the fixing cylinder 521, so as to ensure that the connector 53 is separated from the fixing part 52, and that the connector 53 can be smoothly reconnected to the fixing part 52 after the pin shaft is vibrated. The inner wall of the multiple mounting holes 523 is provided with annular protrusions 526 at the end near the axis of the fixing cylinder 521. The fixing part 524 passes through the protrusions 526, and the protrusions 526 can prevent the fixing part 524 from completely disengaging from the mounting holes 523. The fixing cylinder 521 is provided with a mounting cavity 525 at the end near the connector 53. The inner wall of the mounting cavity 525 is provided with annular blocking part 527 at the end near the connector 53. The mounting cavity 525 and the blocking part 527 facilitate the connection between the connector 53 and the fixing cylinder 521.

[0047] After the connector at the end of the pin extends into the fixed cylinder 521, the drive unit 54 is activated to supply gas into the cavity 522, thereby increasing the air pressure inside the cavity 522. The air pressure inside the cavity 522 pushes multiple fixing parts 524 to move towards the connector, so that some fixing parts 524 pass through the connecting hole on the connector, while the remaining fixing parts 524 that do not pass through the connecting hole abut against the connector, thereby assisting in fixing the fixed cylinder 521.

[0048] Continue to refer to Figure 1 , Figures 3 to 7As shown, the connector 53 includes a mounting base 531, a connecting part 533, and a second connecting hose 534. The mounting base 531 is connected to the telescopic end of the automatic telescopic part 51. A chamber 532 is provided inside the mounting base 531 near the fixed cylinder 521. Two through holes are provided on the inner wall of the chamber 532. Two connecting parts 533 are provided, each inserted into one of the two through holes. One end of the second connecting hose 534 is connected to the mounting base 531, and the other end is connected to the drive unit 54. The second connecting hose 534 communicates with the chamber 532. The drive unit 54 can deliver gas into the chamber 532 through the second connecting hose 534 to increase the air pressure inside the chamber 532. The air pressure inside the chamber 532 then pushes the connecting part 534... 33 moves toward the direction of extending out of the chamber 532 so that the connecting part 533 extends into the mounting cavity 525. When the automatic telescopic part 51 drives the connecting part 53 to move toward the direction close to the pin, the mounting base 531 directly pushes the fixing cylinder 521 on the fixing part 52 to move so that the fixing part 52 moves toward the direction close to the pin. When the automatic telescopic part 51 drives the connecting part 53 to move away from the connecting structure, the connecting part 533 on the connecting part 53 is blocked by the blocking part 527. The connecting part 533 on the connecting part 53 pulls the blocking part 527 and drives the fixing cylinder 521 to move so that the fixing part 52 pulls the pin to move away from the connecting structure. The outer diameter of the part of the mounting base 531 that extends into the mounting cavity 525 is smaller than the inner diameter of the blocking part.

[0049] When disassembling the pin, the fastener 52 is fixedly connected to the connector at the end of the pin. The automatic telescopic part 51 is activated to drive the connector 53 to move away from the connecting structure. At this time, the connecting part 533 on the connector 53 is blocked by the blocking part 527. The connecting part 533 on the connector 53 pulls the blocking part 527 and drives the fixed cylinder 521 to move, so that the fastener 52 pulls the pin to move away from the connecting structure, thereby removing the pin from the connecting structure.

[0050] During the disassembly of the pin, if it needs to be struck, before striking the pin, the drive unit 54 is activated to extract air from the chamber 532 through the connecting hose 534, allowing the connecting part 533 to extend into the chamber 532. At this time, the blocking part 527 no longer obstructs the connecting part 533. Then, the automatic telescopic part 51 is activated to separate the mounting base 531 from the fixed cylinder 521. At this time, the connecting hose 528 is still in a loose state. When the pin is struck at this time, the vibration generated by the pin will not be transmitted to the connecting part 53. Because the connecting hose 528 is in a relaxed state, the risk of the connecting hose 528 transmitting vibration to the drive component 54 can be greatly reduced, thereby avoiding damage to the drive component 54 due to vibration. For the T-shaped cylindrical pin with a connector at the end and a connecting hole at the connector, compared to the prior art method of directly separating the pin puller from the connecting hole on the connecting part at the end of the pin, the pin puller in this application does not need to be adjusted multiple times and re-aligned with the connecting hole on the connecting part at the end of the pin, thus improving the pin pulling efficiency of the pin puller.

[0051] Continue to refer to Figure 1 , Figures 3 to 7 As shown, the drive unit 54 includes a first air pump 541 and a second air pump 542. Both the first air pump 541 and the second air pump 542 are connected to the mounting base 531. The first air pump 541 is connected to a first connecting hose 528. The first air pump 541 can deliver gas into the cavity 522 or extract gas from the cavity 522 through the first connecting hose 528. The second air pump 542 is connected to a second connecting hose 534. The second air pump 542 can deliver gas into the chamber 532 or extract gas from the chamber 532 through the second connecting hose 534.

[0052] Working principle:

[0053] Start the walking mechanism 1 to move the entire pin puller to the set working area. Then start the drive mechanism 3 to move the mounting mechanism 4 and the pin puller 5 until the fixed cylinder 521 is aligned with the connector on the end of the pin.

[0054] The automatic telescopic unit 51 is activated, which drives the connector 53, the fixing member 52 and the driving member 54 to approach the connector at the end of the pin, until the connector at the end of the pin extends into the fixing cylinder 521.

[0055] The air pump 541 is started to deliver gas into the cavity 522 through the connecting hose 528, so as to increase the air pressure in the cavity 522, thereby pushing the fixing part 524 to move in the direction of extending out of the mounting hole 523 until the fixing part 524 passes through the connecting hole of the connector head at the end of the pin, thereby fixing the connector head at the end of the pin, so as to facilitate the subsequent pin pulling operation. The fixing part 524 that does not pass through the connecting hole abuts against the connector head at the end of the pin, thereby providing auxiliary positioning for the fixing cylinder 521.

[0056] The air pump 2 542 is started to supply air into the chamber 532 through the connecting hose 2 534, so as to increase the air pressure in the chamber 532. The air pressure inside the chamber 532 pushes the connecting part 533 to move in the direction of extending out of the chamber 532, so that the connecting part 533 extends into the mounting cavity 525.

[0057] When the automatic telescopic part 51 drives the connector 53 to move toward the direction closer to the pin, the mounting base 531 directly pushes the fixing cylinder 521 on the fixing member 52 to move, so that the fixing member 52 moves toward the direction closer to the pin. When the automatic telescopic part 51 drives the connector 53 to move away from the connecting structure, the connecting part 533 on the connector 53 is blocked by the blocking part 527. The connecting part 533 on the connector 53 pulls the blocking part 527 and drives the fixing cylinder 521 to move, so that the fixing member 52 pulls the pin to move away from the connecting structure.

[0058] When the pin needs to be struck, before striking the pin, the drive unit 54 is activated to extract the air from the chamber 532 so that the connecting part 533 can extend into the chamber 532. At this time, the blocking part 527 no longer obstructs the connecting part 533. Then, the automatic telescopic part 51 is activated to drive the mounting base 531 to separate from the fixed cylinder 521. At this time, the connecting hose 528 is still in a loose state. When the pin is struck, the vibration generated by the pin will not be transmitted to the connecting part 53, and the connecting hose 528 is still in a loose state.

[0059] After the pin is hammered, the air pump 542 is restarted to supply air into the chamber 532 through the connecting hose 534, so that the air pressure in the chamber 532 increases. The air pressure inside the chamber 532 pushes the connecting part 533 to move in the direction of extending out of the chamber 532, so that the connecting part 533 extends into the mounting cavity 525, thereby reconnecting the connecting part 53 and the fixing part 52. Finally, the automatic telescopic part 51 is activated again, which drives the connecting part 53, the fixing part 52 and the driving part 54 to move away from the connecting structure until the pin is removed.

[0060] After the pin-pulling mechanism 5 moves to its maximum stroke, before the pin is completely disengaged from the connecting structure, the start drive unit 43 drives the mounting cylinder 42 to move away from the connecting structure, thereby driving the pin-pulling mechanism 5 to continue moving away from the connecting structure. The pin-pulling mechanism 5 continues to pull the pin to move until the pin is completely separated from the connecting structure.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A mobile walking folding pin puller, comprising a walking mechanism, a control mechanism, a drive mechanism, and a mounting mechanism, wherein the control mechanism and the drive mechanism are both connected to the walking mechanism, and the mounting mechanism is connected to the drive mechanism, characterized in that, It also includes a pin-pulling mechanism, which includes an automatic telescopic part, a fixing part, a connecting part, and a driving part. The automatic telescopic part is connected to the mounting mechanism. The fixing part is connected to the automatic telescopic part through the connecting part. The fixing part can be fixed to the connector at the end of the pin. The driving part is connected to the connecting part. The driving part can drive the connecting part to connect with the fixing part. When the pin is struck, the driving part can drive the connecting part to separate from the fixing part. The fastener includes a fixed cylinder, a fixing part, and a connecting hose. The fixed cylinder has a cavity inside, and multiple mounting holes are provided on the inner wall of the fixed cylinder. All mounting holes are connected to the cavity. Multiple fixing parts are provided, and the multiple fixing parts are respectively inserted into the multiple mounting holes. One end of the connecting hose is connected to the fixed cylinder, and the other end of the connecting hose is connected to the drive component. The first connecting hose is in a relaxed state and is connected to the cavity; The fixed cylinder has a mounting cavity at one end near the connector, and the inner wall of the mounting cavity has an annular blocking part at one end near the connector. The connector includes a mounting base, a connecting part, and two connecting hoses. The mounting base is connected to the telescopic end of the automatic telescopic part. The interior of the mounting base is provided with a chamber near the fixed cylinder. The inner wall of the chamber is provided with through holes. The connecting part is inserted into two through holes. One end of the second connecting hose is connected to the mounting base, and the other end of the second connecting hose is connected to the drive component. The second connecting hose is connected to the chamber.

2. The mobile walking folding pin puller according to claim 1, characterized in that, The connecting hose is made of rubber material.

3. The mobile walking folding pin puller according to claim 1, characterized in that, The inner wall of the mounting hole is provided with an annular protrusion at one end near the axis of the fixed cylinder, and the fixing part passes through the protrusion.

4. The mobile walking folding pin puller according to claim 1, characterized in that, The driving component includes air pump one and air pump two, both of which are connected to the mounting base. Air pump one is connected to connecting hose one, and air pump two is connected to connecting hose two.

5. The mobile walking folding pin puller according to any one of claims 1-4, characterized in that, The installation mechanism includes a mounting frame, a mounting cylinder, and a drive unit. The mounting frame is connected to the drive mechanism, the mounting cylinder is slidably connected to the mounting frame, one end of the drive unit is hinged to the mounting cylinder, the other end of the drive unit is hinged to the mounting frame, and the automatic telescopic part is connected to the mounting cylinder.

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