Hard rock mining mechanical rock breaking head quick replacement device and replacement method

Abstract

A hard rock mining mechanical rock breaking head quick replacement device and a replacement method, the device comprises a mounting table, two supporting frames are slidably connected on the mounting table, a moving mechanism connected with the mounting table is arranged on the supporting frame, the moving mechanism is used for driving the supporting frame to move horizontally, two mounting plates are fixedly connected on the top of the mounting table, a first telescopic driving piece is fixedly connected on each mounting plate, a transmission plate is fixedly connected on the output end of the first telescopic driving piece, a pushing mechanism is fixedly connected on the transmission plate, the pushing mechanism is slidably connected with the mounting plate, and the pushing mechanism is used for pushing the fixing column, two material receiving pipes are fixedly connected on the top of the mounting table, the material receiving pipes are horizontally placed, and the mounting holes of the placed rock breaking heads are aligned, the replacement process is simple to operate, the replacement time is effectively saved, the installation efficiency of the rock breaking head is improved, the continuity of the hard rock mining work is ensured, the overall operation efficiency is improved, and great convenience is brought to the hard rock mining operation.

Description

Technical Field

[0001] This invention relates to the field of mechanical rock-breaking head replacement, and in particular to a quick replacement device and method for mechanical rock-breaking heads used in hard rock mining. Background Technology

[0002] In hard rock mining operations, mechanical rock breakers are key rock-breaking tools, and their performance and condition directly affect mining efficiency and quality. However, due to the harsh environment of hard rock mining, rock breakers will experience wear and damage after prolonged high-intensity operation, requiring timely replacement to ensure the continuity of mining operations.

[0003] Currently, traditional mechanical rock-breaking head replacement methods have many drawbacks. The replacement process typically requires multiple workers, resulting in high labor costs. During replacement, workers must manually align the holes multiple times to ensure accurate connection between the rock-breaking head and the robotic arm. This process is not only time-consuming, but also requires manual hammering during the disassembly and installation of the fixing posts (components used to secure the rock-breaking head to the robotic arm), which is extremely labor-intensive. Prolonged manual hammering can easily lead to worker fatigue, reducing work efficiency and resulting in low rock-breaking head replacement efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of existing mechanical rock breaker replacement technology, which has low replacement efficiency and high labor intensity, and cannot meet the requirements of hard rock mining operations for efficient and convenient replacement of rock breakers. The present invention provides a quick replacement device and method for mechanical rock breakers in hard rock mining.

[0005] The technical solution adopted by the present invention to solve its technical problem is a quick replacement device for mechanical rock breaking head in hard rock mining, including a mounting platform, a support frame, a mounting plate, a first telescopic drive component and a receiving pipe, wherein the support frame, the mounting plate and the receiving pipe are all mounted on the mounting platform; The surface of the mounting platform has a through groove, and a moving component is connected between the support frame and the mounting platform. The moving component connects the support frame to the bottom of the mounting platform and drives the support frame to move along the length of the through groove. At the same time, the support frame is used to support the rock breaking head so that it protrudes from the surface of the mounting platform. Two mounting plates are provided and symmetrically mounted on the surface of the mounting platform. A first telescopic drive component is fixedly mounted on the mounting plate. A transmission plate is fixedly connected to the output end of the first telescopic drive component. A pushing component for pushing the fixed column is mounted on the transmission plate, and the pushing component is slidably connected to the mounting plate. Two receiving pipes are provided and arranged in parallel. The pushing mechanism includes a mounting column, a telescopic rod, a mounting block, a return spring, an electric hammer, and a pushing column. The mounting column, telescopic rod, mounting block, electric hammer, and pushing column are connected in sequence. The return spring is sleeved on the telescopic rod, with one end abutting against the mounting column and the other end abutting against the mounting block. Under the action of the first telescopic drive component, the transmission plate moves, thereby driving the mounting column to slide on the mounting plate. The mounting column drives the electric hammer to move through the telescopic rod and the mounting block. The electric hammer drives the pushing column to move back and forth, repeatedly striking the fixed column and pushing the fixed column out from the rock breaking head.

[0006] Furthermore, the two mounting plates have different structures. One of the mounting plates has a mounting groove, on which a first sliding post is fixedly mounted. A first slider is slidably connected to the first sliding post, and a second sliding post is fixedly mounted on the first slider. A second slider is slidably connected to the second sliding post. The mounting post and the second slider are slidably connected. By sliding the first slider and the second slider, the position of the mounting post can be changed so as to push the post to align with the fixed post.

[0007] Furthermore, a permanent magnet block is fixedly connected to the wall of the mounting groove, and a fixing iron plate is fixedly connected to one side of the second slider.

[0008] Furthermore, a wireless camera is fixedly connected to one side of one of the mounting plates, and a display panel connected to the wireless camera is placed on the top of the mounting platform.

[0009] Furthermore, multiple support rollers are fixedly connected inside the support frame.

[0010] Furthermore, a second telescopic drive component is fixedly connected to the bottom of the mounting platform, a lifting plate is fixedly connected to the output end of the second telescopic drive component, a third telescopic drive component is fixedly connected to the top of the lifting plate, a first limiting plate is fixedly connected to the output end of the third telescopic drive component, and a fourth telescopic drive component is fixedly connected to the wall of the through groove on the mounting platform, a second limiting plate is fixedly connected to the output end of the fourth telescopic drive component; after the lifting plate is driven to rise, the third telescopic drive component and the first limiting plate pass through the gap between the support frame and multiple support rollers, and the third and fourth telescopic drive components work to limit the rock breaking head of the support frame by the first and second limiting plates.

[0011] Furthermore, four support columns are provided at the corners of the mounting platform, each support column having a functional slot. A fifth telescopic drive component is fixedly connected to the functional slot, and a support block is fixedly connected to the output end of the fifth telescopic drive component. A caster wheel is fixedly connected to the bottom of the support block. When the mounting platform needs to be moved, the fifth telescopic drive component drives the support block and the caster wheel to move downwards, and the caster wheel drives the mounting platform to move.

[0012] Furthermore, a support plate is fixedly connected to the outer surface of the support column. After the mounting platform moves to the designated position, the fifth telescopic drive component drives the support block and the universal wheel to retract, and the support plate supports the mounting platform.

[0013] Furthermore, the moving mechanism includes a rotation drive, a threaded rod, and a support rod. The rotation drive is fixedly connected to the mounting platform, the threaded rod is threadedly connected to the support frame, and the output end of the rotation drive is fixedly connected to the threaded rod. The support rod is fixedly connected to the mounting platform and slidably connected to the support frame. Under the action of the support rod, the support frame can slide under the mounting platform. Driven by the rotation drive, the threaded rod rotates, causing the support frame to slide under the drive of the rotation drive.

[0014] A further solution to the technical problem of this invention is a method for replacing a quick-change device for a mechanical rock-breaking head in hard rock mining, comprising the following steps: S1. Initial Placement and Positioning: The rock-breaking head at the end of the excavator's robotic arm is placed onto one of the support frames on the mounting platform. The support rollers inside the support frame facilitate the movement of the rock-breaking head. At the same time, the fixed post on the rock-breaking head is aligned with the pushing mechanism on one side of the mounting plate, so that the pushing post on the pushing mechanism is aligned with the fixed post.

[0015] S2. Removal of the old fixed column: Workers remove the positioning pin from one side of the fixed column. Then, the first telescopic drive component moves the transmission plate, which in turn moves the mounting column. The mounting column, via the telescopic rod and mounting block, moves the electric hammer, which in turn drives the push column to reciprocate, repeatedly striking the fixed column. During this pushing process, the telescopic rod and spring extend and retract to provide cushioning, pushing the fixed column out of the connection hole between the rock-breaking head and the robotic arm, allowing it to enter the receiving pipe. Afterwards, the first telescopic drive component moves the transmission plate and the push mechanism back to their initial positions, and the robotic arm disengages from the rock-breaking head.

[0016] S3. Moving the support frame to replace the rock breaking head: Rotating the drive component drives the threaded rod to rotate, and the threaded rod drives the support frame to move horizontally, moving the new rock breaking head on the other support frame to the position of the robotic arm.

[0017] S4. Install the new fixing column: A pushing mechanism on the other side of the mounting plate moves the fixing column located in the upper receiving pipe, so that it enters the mounting hole of the robotic arm and the rock breaking head. Then, the positioning pin is inserted into the fixing column to fix it.

[0018] S5. Mechanical arm adjustment and secondary hole alignment: The mechanical arm drives the rock breaking head to move upward. The rock breaking head can rotate. At the same time, the mechanical arm drives the connecting rod on the mechanical arm to move by retracting the bucket, so that the mounting hole on the connecting rod is aligned with the mounting hole on the rock breaking head.

[0019] S6. Install the new fixing post: Insert the fixing post from the other receiving pipe into the mounting hole. Move the first slider on the first sliding post. The first slider moves horizontally, driving the second sliding post to move. Then move the second slider on the second sliding post, causing it to move up and down. This drives the pushing mechanism on the second slider to move left and right and up and down, aligning it with the mounting hole. The pushing mechanism then pushes the fixing post into the mounting hole, and the positioning pin is inserted into the fixing post for fixation, completing the rock breaking head replacement.

[0020] In summary, the present invention has the following beneficial technical effects: This mechanical rock-breaking head quick-change device for hard rock mining achieves semi-automation in rock-breaking head replacement, greatly improving replacement efficiency. Previously, replacing rock-breaking heads required multiple people working together, and workers had to repeatedly check the holes, consuming a significant amount of time. This device can be operated by a single person. The first telescopic drive component drives the pushing mechanism, which uses an electric hammer to push the fixed column, completing the disassembly. No manual hammering is required, reducing the labor intensity of workers and shortening the disassembly and assembly time. The moving mechanism can precisely drive the horizontal movement of the support frame, enabling rapid switching between the old and new rock-breaking heads. The entire replacement process is clear and easy to operate, effectively saving replacement time, improving the installation efficiency of rock-breaking heads, ensuring the continuity of hard rock mining operations, and enhancing overall operational efficiency, bringing great convenience to hard rock mining operations.

[0021] By using a wireless camera in conjunction with a display panel, operators can monitor the position of the rock-breaking head in real time from the cab, facilitating quick alignment with the disassembly / removal holes and improving replacement efficiency. Simultaneously, the coordinated action of the second, third, and fourth telescopic drive components precisely positions the rock-breaking head, ensuring it is in the correct installation position, which is beneficial for subsequent installation of the fixing column. Functional slots on the support column, the fifth telescopic drive component, support blocks, and casters allow for easy movement of the installation platform while providing stable support once in position. These improvements make the device more precise and efficient in replacing rock-breaking heads, adaptable to different operational scenarios, and reduce operational difficulty and intensity, providing a more comprehensive solution for replacing mechanical rock-breaking heads in hard rock mining.

[0022] This method provides a complete and clear replacement process, enabling efficient and precise replacement of rock breaking heads while effectively saving replacement time, reducing operational difficulty and intensity, lowering the labor intensity of workers, and greatly facilitating the replacement of rock breaking heads. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a mechanical rock-breaking head quick-change device for hard rock mining according to the present invention; Figure 2 This is a schematic diagram of the overall structure of an embodiment of a mechanical rock-breaking head quick-change device for hard rock mining according to the present invention; Figure 3 This is a schematic diagram of the overall structure of an embodiment of a mechanical rock-breaking head quick-change device for hard rock mining according to the present invention; Figure 4 This is the present invention. Figure 1 Enlarged view of A in the middle; Figure 5 This is the present invention. Figure 1 Enlarged view of B in the middle; Figure 6 This is the present invention. Figure 2 A magnified view of C.

[0024] Explanation of reference numerals in the attached figures: 1. Mounting platform; 2. Support frame; 3. Mounting plate; 4. First telescopic drive component; 5. Transmission plate; 6. Material receiving pipe; 7. Mounting column; 8. Telescopic rod; 9. Mounting block; 10. Return spring; 11. Electric hammer; 12. Push column; 13. Mounting groove; 14. First sliding column; 15. First slider; 16. Second sliding column; 17. Second slider; 21. Second telescopic drive component; 22. Lifting plate; 23. Third telescopic drive component; 24. First limiting plate; 25. Fourth telescopic drive component; 26. Second limiting plate; 31. Wireless camera; 32. Display panel; 41. Support roller; 51. Permanent magnet block; 52. Fixed iron plate; 61. Support column; 62. Functional slot; 63. Fifth telescopic drive component; 64. Support block; 65. Universal wheel; 66. Support plate; 71. Rotation drive component; 72. Threaded rod; 73. Support rod; 74. Lower base plate. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] Reference Figure 1 and Figure 2 This embodiment includes a mounting platform 1. The upper surface of the mounting platform 1 is connected to a mounting plate 3, a first telescopic drive component 4, a transmission plate 5, a receiving pipe 6, and a pushing mechanism. The lower part of the mounting platform 1 is provided with a support frame 2, a support column 61, multiple telescopic drive components, and a moving mechanism.

[0027] Reference Figure 1The mounting platform 1 has a through groove. Two identical support frames 2 are slidably connected to the bottom surface of the mounting platform 1 via a moving mechanism. The support frames 2 are located at the opening of the through groove. Two mounting plates 3 are also provided and symmetrically distributed on both sides of the through groove. A first telescopic drive component 4 is fixedly connected to each mounting plate 3. The first telescopic drive component 4 is an electric telescopic rod 8 or an electric hydraulic rod. The output end of the first telescopic drive component 4 is fixedly connected to a transmission plate 5. A pushing mechanism is fixedly connected to the transmission plate 5. The pushing mechanism is slidably connected to the mounting plate 3 and is used to push the fixed column. Two receiving pipes 6 are provided and located on the same side of the through groove. The two receiving pipes 6 are parallel to each other and horizontally placed and fixedly connected to the surface of the mounting platform 1. The receiving pipes 6 are aligned with the mounting holes of the placed rock breaking head.

[0028] Reference Figure 1 , Figure 2 and Figure 5 The pushing mechanism includes a mounting column 7, a telescopic rod 8, a mounting block 9, a return spring 10, an electric hammer 11, and a pushing column 12. One end of the mounting column 7 is fixedly connected to the transmission plate 5, and the outer surface of the mounting column 7 passes through the mounting plate 3 to achieve a sliding connection with the mounting plate 3. The telescopic rod 8 is fixedly connected to the side of the mounting column 7 away from the transmission plate 5. The output end of the telescopic rod 8 is fixedly connected to the mounting block 9, and the outer surface of the telescopic rod 8 is fixedly sleeved with a return spring 10 fixedly connected to the mounting block 9. The return spring 10 abuts against the mounting column 7. The electric hammer 11 is fixedly connected to one side of the mounting block 9, and the pushing column 12 is fixedly connected to the output end of the electric hammer 11. The pushing column 12 is used to push the fixed column on the rock breaking head.

[0029] Driven by the first telescopic drive 4, the transmission plate 5 moves towards the mounting plate 3, and the mounting column 7 slides on the mounting plate 3. This causes the telescopic rod 8, mounting block 9, return spring 10, electric hammer 11, and push column 12 on one side of the mounting column 7 to move to a certain extent, so that the push column 12 at the end is close to the rock breaking head. After aligning with the fixed column on the rock breaking head, the electric hammer 11 drives the push column 12 to reciprocate and strike. The telescopic rod 8 and return spring 10 provide buffering during the striking process until the fixed column is pushed out from the rock breaking head. The first telescopic drive 4 then drives the transmission plate 5 and the push mechanism back to their initial positions.

[0030] Reference Figure 1 and Figure 2It should be noted that the two mounting plates 3 are not completely identical in structure. The mounting plate 3 closer to the receiving pipe 6 has a mounting groove 13. A first sliding column 14 is fixedly connected to the groove wall of the mounting groove 13. A first slider 15 is slidably connected to the first sliding column 14, that is, the first sliding column 14 passes through the first slider 15. A second sliding column 16 is fixedly connected to the first slider 15. The first sliding column 14 and the second sliding column 16 are set perpendicular to each other. A second slider 17 is slidably connected to the second sliding column 16. Moreover, the second sliding column 16 cannot be fixed to the groove wall of the mounting groove 13. The mounting column 7 on the pushing mechanism is slidably connected to the second slider 17. Through the first sliding column 14 and the second sliding column 16, the position of the second sliding column can be adjusted, thereby changing the position of the mounting column 7 so that the pushing column 12 is aligned with the mounting hole on the new rock breaking head.

[0031] Reference Figure 1 and Figure 6 In addition, a permanent magnet block 51 is fixedly connected to the wall of the mounting groove 13, and a fixing iron plate 52 is fixedly connected to one side of the second slider 17. The permanent magnet block 51 attracts the fixing iron plate 52, thus fixing the second slider 17 in a limited position when not in use and preventing the second slider 17 from sliding freely. At the same time, a wireless camera 31 is fixedly connected to the mounting plate 3 away from the receiving pipe 6. A display panel 32 connected to the wireless camera 31 is placed on the top of the mounting platform 1. The wireless camera 31 can transmit the captured images to the display panel 32 in real time, allowing real-time observation during operation.

[0032] Reference Figure 3 The moving mechanism includes a rotation drive 71, a threaded rod 72, and a support rod 73. In this embodiment, the rotation drive 71 is a servo motor, which is controlled by a PLC programming program to control forward and reverse rotation and rotation angle. A lower base plate 74 is installed on the bottom surface of the mounting platform 1, and the rotation drive 71 is installed on the lower base plate 74. At the same time, protrusions are provided on the left and right sides of the support frame 2. The threaded rod 72 is threadedly connected to the left protrusions of the two support frames 2, while the support rod 73 passes through the right protrusions of the two support frames 2, realizing a sliding connection between the support rod 73 and the support frame 2. The support rod 73 is fixedly connected to the lower base plate 74, and the output end of the rotation drive 71 is fixedly connected to the threaded rod 72. Under the action of the support rod 73, the support frame 2 itself can slide, and by driving the threaded rod 72 to rotate through the rotation drive 71, the threaded rod 72 can drive the support frame 2 to move horizontally through external power.

[0033] First, the rock-breaking head at the end of the excavator's robotic arm is placed onto one of the support frames 2 on the mounting platform 1. Simultaneously, the fixed post on the rock-breaking head is aligned with the pushing mechanism on one side of the mounting plate 3, aligning the pushing post 12 on the pushing mechanism with the fixed post. Then, the worker removes the positioning pin on one side of the fixed post. Next, the first telescopic drive 4 drives the transmission plate 5 to move, which in turn moves the mounting post 7. The mounting post 7, through the telescopic rod 8 and the mounting block 9, drives the electric hammer 11 to move. Simultaneously, the electric hammer 11 drives the pushing post 12 to reciprocate, causing the pushing post 12 to repeatedly strike the fixed post. During this pushing process, the telescopic rod 8 and... The spring's extension and contraction provide cushioning, causing the electric hammer 11 to drive the push column 12 to strike the fixed column, thus pushing the fixed column out of the connection hole between the rock-breaking head and the robotic arm, and simultaneously pushing the fixed column into the receiving pipe 6. Then, the first telescopic drive 4 drives the transmission plate 5 and the push mechanism to return to their initial positions. At this point, the robotic arm and the rock-breaking head disengage. Subsequently, the moving mechanism drives the support frame 2 to move, moving the new rock-breaking head from the other support frame 2 to the position of the robotic arm. Then, a push mechanism on the other side mounting plate 3 drives the fixed column located in the upper receiving pipe 6 to move, causing the fixed column to enter the mounting hole between the robotic arm and the rock-breaking head. The positioning pin is inserted into the fixing post to secure it. Then, the mechanical arm drives the rock-breaking head upward, lifting it up so that it can rotate. Simultaneously, the operator operates the excavator, causing the excavator's mechanical arm to move the connecting rod by retracting the bucket, thus aligning the mounting hole on the connecting rod with the mounting hole on the rock-breaking head. This eliminates the need for the operator to align the new rock-breaking head with the new mounting hole. Then, the fixing post in the other receiving pipe 6 is inserted into the mounting hole. Next, the first slider 15 on the first sliding post 14 moves horizontally, and the second slider 17 on the second sliding post 16 moves vertically. The push mechanism on the second slider 17 moves left and right and up and down, aligning the push mechanism with the mounting hole. Then, the push mechanism pushes the fixing post into the mounting hole, and the positioning pin is inserted into the fixing post for fixation, thereby realizing the replacement of the rock breaking head. Through the above semi-automatic replacement method, the rock breaking head can be replaced quickly, allowing one person to replace the rock breaking head. At the same time, it eliminates the need for workers to align the hole multiple times, saving replacement time. In addition, during the installation and removal of the fixing post, the automatic push mechanism eliminates the need for workers to manually knock and disassemble, reducing the intensity of workers and the time required for installation and removal, further improving the installation efficiency of the rock breaking head.

[0034] Reference Figure 2 , Figure 3 and Figure 4Multiple support rollers 41 are fixedly connected inside the support frame 2. These rollers facilitate the movement of the rock-breaking head on the support frame 2. It should be noted that the front end of the support frame 2 has a certain gap. A second telescopic drive component 21 is fixedly connected to the bottom of the mounting platform 1 via a U-shaped plate. The second telescopic drive component 21 is an electric telescopic rod 8 or an electric hydraulic rod. A lifting plate 22 parallel to the ground is fixedly connected to the output end of the second telescopic drive component 21. Two symmetrical third telescopic drive components 23 are fixedly connected to the top of the lifting plate 22. The third telescopic drive components 23 are electric telescopic rods 8 or electric hydraulic rods. A first limiting plate 24 is fixedly connected to the output end of the third telescopic drive component 23. A fourth telescopic drive component 25 is fixedly connected to the side wall of the through groove on the mounting platform 1. The fourth telescopic drive 25 is fixedly connected to the output end of an electric telescopic rod 8 or an electric hydraulic rod, and a second limiting plate 26 is fixedly connected to it. When the second telescopic drive 21 works to raise the lifting plate 22, the third telescopic drive 23 and the first limiting plate 24 will enter the interior of the support frame 2 through the gap at the front end of the support frame 2 and align with the rock breaking head on the support frame 2. The second limiting plate 26 is aligned with the side end of the rock breaking head. Under the drive of the third telescopic drive 23 and the fourth telescopic drive 25, the first limiting plate 24 and the second limiting plate 26 will move the rock breaking head so that the rock breaking head is in the installation position.

[0035] During the disassembly and assembly process, the position of the breaker head and the robotic arm is transmitted to the display panel 32 in real time via the wireless camera 31. At this time, the staff brings the display panel 32 to the excavator cab, so that the position of the rock breaker head can be observed in real time during the replacement process, which makes it easier for the staff to align the disassembly and assembly holes more quickly and further improve the replacement efficiency. At the same time, when the rock breaker head is replaced with a new one, after the rock breaker head moves to the replacement position corresponding to the mounting plate 3, the second telescopic drive component 21 drives the lifting plate 22 to move upward, so that the third telescopic drive component 23 drives the first limiting plate 24 to move upward. Then, the third telescopic drive component 23 drives the first limiting plate 24 to move, and the first limiting plate 24 drives the rock breaker head to move back and forth. Then, the fourth telescopic drive components 25 on both sides drive the second limiting plate 26 to move, and the second limiting plate 26 pushes the rock breaker head to move left and right, so that the rock breaker head is precisely limited to the installation position, which facilitates the subsequent installation of the fixing column. During the disassembly process, the first limiting plate 24 and the second limiting plate 26 can be moved to the limiting position to provide the workers with a limiting reference position, so that the workers can put the rock breaking head into the limiting position.

[0036] Reference Figure 3The mounting platform 1 has four support columns 61 at its four corners. Each support column 61 has a functional slot 62 at its bottom. A fifth telescopic drive component 63 is fixedly connected to the functional slot 62. A support block 64 is fixedly connected to the output end of the fifth telescopic drive component 63. A caster wheel 65 is fixedly connected to the bottom of the support block 64. A support plate 66 is fixedly connected to the outer surface of the support column 61. When the mounting platform 1 needs to be moved, the fifth telescopic drive component 63 drives the support block 64 and the caster wheel 65 to move downwards, so that the caster wheel 65 moves out of the functional slot 62, making it easy to move the mounting platform 1. After moving to the desired position, the fifth telescopic drive component 63 drives the support block 64 and the caster wheel 65 to move, so that the caster wheel 65 enters the functional slot 62. Then, the support plate 66 fixes the support column 61 and the mounting platform 1, thereby realizing the portable movement of the mounting platform 1.

[0037] The working steps of a quick-change mechanical rock-breaking head device for hard rock mining according to an embodiment of the present invention are as follows: S1. Initial Placement and Positioning: The rock-breaking head at the end of the excavator's robotic arm is placed onto one of the support frames 2 on the mounting platform 1. The support rollers 41 inside the support frame 2 facilitate the movement of the rock-breaking head. At the same time, the fixed post on the rock-breaking head is aligned with the pushing mechanism on one side of the mounting plate 3, so that the pushing post 12 on the pushing mechanism is aligned with the fixed post.

[0038] S2. Removal of the old fixed column: The worker removes the positioning pin on one side of the fixed column. Then, the first telescopic drive component 4 (electric telescopic rod 8 or electric hydraulic rod) drives the transmission plate 5 to move. The transmission plate 5 drives the mounting column 7 to move. The mounting column 7 drives the electric hammer 11 to move through the telescopic rod 8 and the mounting block 9. The electric hammer 11 drives the push column 12 to move back and forth, repeatedly striking the fixed column. During the pushing process, the telescopic rod 8 and the spring extend and retract to buffer the movement, pushing the fixed column out of the connection hole between the rock breaking head and the robotic arm, allowing it to enter the receiving pipe 6. Afterwards, the first telescopic drive component 4 drives the transmission plate 5 and the push mechanism to return to the initial position, and the robotic arm and the rock breaking head disengage.

[0039] S3. Moving support frame 2 to replace rock breaking head: Rotating drive component 71 (servo motor, controlled by PLC programming program to rotate forward and reverse and rotate angle) drives threaded rod 72 to rotate, threaded rod 72 drives support frame 2 to move horizontally, moving the new rock breaking head on another support frame 2 to the position of the robotic arm.

[0040] S4. Install new fixed column (preliminary): Move the fixed column located in the upper receiving pipe 6 through a pushing mechanism on the other side mounting plate 3, so that it enters the mounting hole of the robotic arm and rock breaking head. Then, insert the positioning pin into the fixed column to fix it.

[0041] S5. Mechanical arm adjustment and secondary hole alignment: The mechanical arm drives the rock breaking head to move upward. The rock breaking head can rotate. At the same time, the mechanical arm drives the connecting rod on the mechanical arm to move by retracting the bucket, so that the mounting hole on the connecting rod is aligned with the mounting hole on the rock breaking head.

[0042] S5. Installing a new fixing post (secondary): Insert the fixing post from the other receiving pipe 6 into the mounting hole. Move the first slider 15 on the first sliding post 14. The first slider 15 moves horizontally, driving the second sliding post 16 to move. Then move the second slider 17 on the second sliding post 16, causing the second slider 17 to move up and down. This drives the pushing mechanism on the second slider 17 to move left and right and up and down, aligning it with the mounting hole position. Subsequently, the pushing mechanism pushes the fixing post into the mounting hole, and the positioning pin is inserted into the fixing post for fixation, completing the replacement of the rock breaking head.

[0043] It should be noted that before this, the mounting platform 1 can be moved to the desired working position, such as near the excavator, by means of the casters 65 on the support column 61. After reaching the designated position, the casters 65 are retracted by the fifth telescopic drive component 63, and the support plate 66 fixes the support column 61 and the mounting platform 1.

[0044] Simultaneously, after the new rock-breaking head moves to the replacement position corresponding to the mounting plate 3, the second telescopic drive component 21 drives the lifting plate 22 to move upward, so that the third telescopic drive component 23 and the first limiting plate 24 enter the support frame 2 and align with the rock-breaking head. The third telescopic drive component 23 drives the first limiting plate 24 to move, and the first limiting plate 24 drives the rock-breaking head to move back and forth. The fourth telescopic drive components 25 on both sides drive the second limiting plate 26 to move, and the second limiting plate 26 pushes the rock-breaking head to move left and right, so that the rock-breaking head is precisely limited in the installation position, which is convenient for subsequent installation of the fixing column. During the disassembly process, the first limiting plate 24 and the second limiting plate 26 can also be moved to the limiting position to provide the staff with a limiting reference.

[0045] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component. Therefore, all equivalent changes made to the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A quick-change device for mechanical rock-breaking heads in hard rock mining, characterized in that, It includes a mounting platform (1), a support frame (2), a mounting plate (3), a first telescopic drive component (4), and a receiving pipe (6), wherein the support frame (2), the mounting plate (3), and the receiving pipe (6) are all mounted on the mounting platform (1); The surface of the mounting platform (1) has a through groove. A moving component is connected between the support frame (2) and the mounting platform (1). The moving component connects the support frame (2) to the bottom of the mounting platform (1) and drives the support frame (2) to move along the length of the through groove. At the same time, the support frame (2) is used to support the rock breaking head so that it protrudes from the surface of the mounting platform (1). Two mounting plates (3) are provided and symmetrically installed on the surface of the mounting platform (1). A first telescopic drive component (4) is fixedly installed on the mounting plate (3). A transmission plate (5) is fixedly connected to the output end of the first telescopic drive component (4). A push component for pushing the fixed column is installed on the transmission plate (5), and the push component is slidably connected to the mounting plate (3). Two receiving pipes (6) are provided and arranged in parallel. The pushing mechanism includes a mounting column (7), a telescopic rod (8), a mounting block (9), a return spring (10), an electric hammer (11), and a pushing column (12). The mounting column (7), telescopic rod (8), mounting block (9), electric hammer (11), and pushing column (12) are connected in sequence. The return spring (10) is sleeved on the telescopic rod (8), with one end of the return spring (10) abutting against the mounting column (7) and the other end abutting against the mounting block (9). Under the action of the first telescopic drive member (4), the transmission plate (5) moves, thereby driving the mounting column (7) to slide on the mounting plate (3). The mounting column (7) drives the electric hammer (11) to move through the telescopic rod (8) and the mounting block (9). The electric hammer (11) drives the pushing column (12) to move back and forth, repeatedly striking the fixed column and pushing the fixed column out from the rock breaking head.

2. The quick-change device for mechanical rock breaking heads in hard rock mining according to claim 1, characterized in that, The two mounting plates (3) have different structures. One of the mounting plates (3) has a mounting groove (13). A first sliding post (14) is fixedly installed on the groove wall of the mounting groove (13). A first slider (15) is slidably connected to the first sliding post (14). A second sliding post (16) is fixedly installed on the first slider (15), and a second slider (17) is slidably connected to the second sliding post (16). The mounting post (7) is slidably connected to the second slider (17). By sliding the first slider (15) and the second slider (17), the position of the mounting post (7) can be changed so as to push the post (12) to align with the fixed post.

3. The quick-change device for mechanical rock-breaking heads in hard rock mining according to claim 2, characterized in that, A permanent magnet block (51) is fixedly connected to the wall of the mounting groove (13), and a fixing iron plate (52) is fixedly connected to one side of the second slider (17).

4. The quick-change device for mechanical rock-breaking heads in hard rock mining according to claim 1, characterized in that, A wireless camera (31) is fixedly connected to one side of one of the mounting plates (3), and a display panel (32) connected to the wireless camera (31) is placed on the top of the mounting platform (1).

5. A quick-change device for mechanical rock-breaking heads in hard rock mining according to claim 1, characterized in that, Multiple support rollers (41) are fixedly connected inside the support frame (2).

6. The quick-change device for mechanical rock-breaking heads in hard rock mining according to claim 1, characterized in that, The bottom of the mounting platform (1) is fixedly connected to a second telescopic drive member (21), the output end of the second telescopic drive member (21) is fixedly connected to a lifting plate (22), the top of the lifting plate (22) is fixedly connected to a third telescopic drive member (23), the output end of the third telescopic drive member (23) is fixedly connected to a first limiting plate (24), the wall of the through groove on the mounting platform (1) is fixedly connected to a fourth telescopic drive member (25), the output end of the fourth telescopic drive member (25) is fixedly connected to a second limiting plate (26); after the lifting plate (22) is driven to rise, the third telescopic drive member (23) and the first limiting plate (24) pass through the gap between the support frame (2) and multiple support rollers (41), and the third telescopic drive member (23) and the fourth telescopic drive member (25) work to limit the rock breaking head of the support frame (2) by the first limiting plate (24) and the second limiting plate (26).

7. The quick-change device for mechanical rock breaking heads in hard rock mining according to claim 1, characterized in that, Four support columns (61) are provided at the corners of the mounting platform (1). Each support column (61) has a functional slot (62). A fifth telescopic drive component (63) is fixedly connected in the functional slot (62). A support block (64) is fixedly connected to the output end of the fifth telescopic drive component (63). A caster wheel (65) is fixedly connected to the bottom of the support block (64). When the mounting platform (1) needs to be moved, the fifth telescopic drive component (63) drives the support block (64) and the caster wheel (65) to move downwards, and the caster wheel (65) drives the mounting platform (1) to move.

8. A quick-change device for mechanical rock-breaking heads in hard rock mining according to claim 7, characterized in that, The outer surface of the support column (61) is fixedly connected to the support plate (66). After the mounting platform (1) moves to the designated position, the fifth telescopic drive component (63) drives the support block (64) and the universal wheel (65) to retract, and the support plate (66) supports the mounting platform (1).

9. A quick-change device for mechanical rock-breaking heads in hard rock mining according to claim 1, characterized in that, The moving mechanism includes a rotating drive (71), a threaded rod (72), and a support rod (73). The rotating drive (71) is fixedly connected to the mounting platform (1), the threaded rod (72) is threadedly connected to the support frame (2), and the output end of the rotating drive (71) is fixedly connected to the threaded rod (72). The support rod (73) is fixedly connected to the mounting platform (1) and slidably connected to the support frame (2). Under the action of the support rod (73), the support frame (2) can slide under the mounting platform (1). Under the drive of the rotating drive (71), the threaded rod (72) rotates, so that the support frame (2) slides under the drive of the rotating drive (71).

10. A replacement method based on the quick-change device for mechanical rock breakers used in hard rock mining according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Initial placement and positioning: The rock-breaking head at the end of the excavator's arm is placed on one of the support frames (2) on the mounting platform (1). The support roller (41) inside the support frame (2) facilitates the movement of the rock-breaking head. At the same time, the fixed post on the rock-breaking head is aligned with the pushing mechanism on one side of the mounting plate (3), so that the pushing post (12) on the pushing mechanism is aligned with the fixed post. S2. Removal of the old fixed column: The worker removes the positioning pin on one side of the fixed column from the fixed column. Then, the first telescopic drive (4) drives the transmission plate (5) to move. The transmission plate (5) drives the mounting column (7) to move. The mounting column (7) drives the electric hammer (11) to move through the telescopic rod (8) and the mounting block (9). The electric hammer (11) drives the push column (12) to move back and forth, repeatedly striking the fixed column. During the pushing process, the telescopic rod (8) and the spring extend and retract to buffer, pushing the fixed column out of the connection hole between the rock breaking head and the mechanical arm, so that it enters the receiving pipe (6). Afterwards, the first telescopic drive (4) drives the transmission plate (5) and the push mechanism to return to the initial position, and the mechanical arm and the rock breaking head are separated. S3. Moving support frame (2) to replace rock breaking head: Rotate drive component (71) to drive threaded rod (72) to rotate, threaded rod (72) to drive support frame (2) to move horizontally, and move the new rock breaking head on another support frame (2) to the position of the robotic arm; S4. Install a new fixed column: Move the fixed column located in the upper receiving pipe (6) through a pushing mechanism on the other side mounting plate (3) so that it enters the mounting hole of the mechanical arm and rock breaking head. Then insert the positioning pin into the fixed column to fix it. S5. Mechanical arm adjustment and secondary hole alignment: The mechanical arm drives the rock breaking head to move upward. The rock breaking head can rotate. At the same time, the mechanical arm drives the connecting rod on the mechanical arm to move by retracting the bucket, so that the mounting hole on the connecting rod is aligned with the mounting hole on the rock breaking head. S6. Install the new fixing post: Insert the fixing post in the other receiving pipe (6) into the mounting hole, move the first slider (15) on the first sliding post (14), the first slider (15) moves horizontally, driving the second sliding post (16) to move, then move the second slider (17) on the second sliding post (16), causing the second slider (17) to move up and down, thereby driving the pushing mechanism on the second slider (17) to move left and right and up and down, so that it is aligned with the mounting hole position. Then the pushing mechanism pushes the fixing post into the mounting hole, inserts the positioning pin into the fixing post for fixation, and completes the replacement of the rock breaking head.

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