Rock crushing rake head

Abstract

The invention discloses a rock crushing rake head, and relates to the technical field of rake heads. A first hydraulic rod is hinged to the middle section of the supporting frame, a mounting frame is fixedly connected to the output end of the first hydraulic rod, a rock breaking machine is fixedly connected to the bottom of the mounting frame, a suction table is hinged to one end of the supporting frame, a second hydraulic rod is hinged to the middle section of the supporting frame, and the output end of the second hydraulic rod is hinged to the suction table. And the bottom of the suction table is fixedly connected with ground gripping teeth. When stones crushed by the rock crusher enter the suction table through the suction bin, the large-size stones are graded through the grading rollers and are prevented from entering the small suction port, and meanwhile the driving assembly is started to drive the two grading rollers to drive the two grading gears to be engaged, so that the stones are classified, and the stone crushing efficiency is improved. And the two grading rollers push the stones clamped in the suction bin to move towards the two large suction openings, and are matched with the first suction pipe and the second suction pipe to suck the stones with the small size and the stones with the large size out of the suction table correspondingly and discharge the stones to the two sides of the seabed.

Description

Technical Field

[0001] This application relates to the technical field of dragheads, and particularly to a rock-breaking draghead. Background Art

[0002] In the field of ocean engineering, large trailing suction hopper dredgers play an indispensable role in deep-sea sand extraction operations due to their excellent self-propelling ability and high construction performance. Especially under environmental conditions with strong winds and waves, these vessels demonstrate significant advantages. They can maintain stable operations in extreme sea conditions, and their powerful excavation capabilities are crucial for key projects such as port construction, waterway maintenance, and land reclamation. These projects often need to be carried out in harsh marine environments. Therefore, the reliability and efficiency of trailing suction hopper dredgers are essential for the success of the projects.

[0003] To address the damage caused by hard soil to the draghead and the resulting decrease in work efficiency, the common measures taken in the industry are to increase the number and hardness of the drag teeth or to enlarge the size of the suction inlet when designing the draghead. Such physical improvement measures aim to enhance the durability and passability of the draghead, with the expectation of maintaining a high dredging efficiency under hard soil conditions. This design concept mainly improves the crushing ability of hard soil by increasing the contact area and strength of the drag teeth, and at the same time increases the throughput of the draghead by enlarging the size of the suction inlet, thereby theoretically improving the efficiency of dredging operations.

[0004] However, this design also brings a series of problems, especially when dealing with stones of different sizes. Since all stones are sucked through the suction inlet in cooperation with the pipeline, the pipeline is prone to blockage when sucking in larger-sized stones, which directly affects the dredging efficiency of the draghead. Summary of the Invention

[0005] The purpose of this application is to provide a rock-breaking draghead to solve the problem that since all stones are sucked through the suction inlet in cooperation with the pipeline, the pipeline is prone to blockage when sucking in larger-sized stones, which affects the dredging efficiency of the draghead.

[0006] To achieve the above purpose, this application specifically adopts the following technical solutions: A rock-breaking rake head includes a support frame. A first hydraulic rod is hinged to the middle section of the support frame. The output end of the first hydraulic rod is fixedly connected to a mounting frame. A rock breaker is fixedly connected to the bottom of the mounting frame. One end of the support frame is hinged to a suction table, and a second hydraulic rod is hinged to the middle section of the support frame. The output end of the second hydraulic rod is hinged to the suction table. Ground-gripping teeth are fixedly connected to the bottom of the suction table. Large suction ports are symmetrically formed at one end of the ground-gripping teeth. A first suction pipe is fixedly connected to one end of the large suction port. A small suction port is formed inside the suction table. A second suction pipe is fixedly connected to the output end of the small suction port. A suction chamber communicating with the small suction port is formed at one end of the suction table. Grading rollers are symmetrically and rotatably connected inside the suction chamber. A first sealed chamber is formed inside the suction table. One end of the grading roller extends into the first sealed chamber and is fixedly connected to a grading gear. The two grading gears mesh with each other. A driving assembly for driving the grading rollers to rotate is installed inside the suction table.

[0007] By adopting the above technical solution, through the combined use of the driving assembly, grading gears and grading rollers, when the stones broken by the rock breaker enter the inside of the suction table through the suction chamber, the grading rollers are used to grade the stones with larger sizes and block them from entering the inside of the small suction port. At the same time, the driving assembly is started to drive the two grading rollers to drive the two grading gears to mesh, and the two grading rollers are made to push the stones stuck inside the suction chamber towards the direction of the two large suction ports, and the first suction pipe and the second suction pipe are used to extract the stones with smaller and larger sizes from the inside of the suction table respectively and discharge them to both sides of the seabed, so as to facilitate the graded suction of the stones broken by the rock breaker, effectively reducing the situation that the suction pipeline is blocked by larger-sized stones, resulting in blockage and reducing the dredging efficiency of the device.

[0008] Further, the driving assembly includes a mounting chamber formed inside the suction table. One end of one grading roller extends into the mounting chamber and is fixedly connected to a driving worm gear. A driving worm meshing with the driving worm gear is rotatably connected inside the mounting chamber. A driving motor is fixedly connected inside the mounting chamber. The output end of the driving motor is fixedly connected to the driving worm.

[0009] By adopting the above technical solution, through the combined use of the driving worm gear and the driving worm, when the driving motor is started to drive the driving worm to rotate, the driving worm is driven to mesh with the driving worm gear, so that the driving worm gear drives one grading roller to rotate synchronously, thereby facilitating the rotation of the grading roller and effectively improving the practicability of the device.

[0010] Further, a plurality of grading bumps are uniformly and fixedly connected to the surface of the grading roller.

[0011] By adopting the above technical solution, through the combined use of the graded bumps and the graded roller, the friction force on the surface of the graded roller is effectively increased, and the pushing effect of the graded roller on the stones is improved.

[0012] Furthermore, a second sealed chamber is provided inside the suction table. A plurality of anti-blocking rods are evenly and rotatably connected to the inner bottom of the second sealed chamber. One end of each anti-blocking rod passes through the suction table and extends to the input end of the small suction port. The plurality of anti-blocking rods are inclined towards the inside of the suction chamber. Anti-blocking plates are symmetrically and fixedly connected to one end of each anti-blocking rod. A transmission mechanism for driving the anti-blocking rods to rotate reciprocally is installed inside the second sealed chamber.

[0013] By adopting the above technical solution, through the combined use of the transmission mechanism with the anti-blocking rods and the anti-blocking plates, when the driving component is started to drive the graded roller to rotate, the graded roller drives the anti-blocking rods to rotate reciprocally in cooperation with the transmission mechanism, so that the anti-blocking rods cooperate with the anti-blocking plates to turn over the stones blocking the input end of the small suction port, and the stones are separated towards the inside of the suction chamber along the inclined direction of the anti-blocking rods. In this way, the situation of blockage inside the suction port is effectively reduced, and the dredging efficiency of the device is further improved.

[0014] Furthermore, the transmission mechanism includes an anti-blocking gear fixedly connected to the top of the anti-blocking rod. The anti-blocking gear is installed inside the second sealed chamber. Anti-blocking racks are symmetrically and slidably connected to the inner bottom of the second sealed chamber. The anti-blocking racks are meshed with the anti-blocking gear. A reciprocating mechanism for driving the anti-blocking racks to slide reciprocally along the length direction of the second sealed chamber is installed inside the second sealed chamber.

[0015] By adopting the above technical solution, through the combined use of the reciprocating mechanism with the anti-blocking racks and the anti-blocking gear, when the driving component drives the graded roller to rotate, the graded roller drives the anti-blocking racks to rotate reciprocally along the length direction of the second sealed chamber in cooperation with the reciprocating mechanism. At the same time, the anti-blocking racks are meshed with the anti-blocking gear, and the anti-blocking gear drives the anti-blocking rods to rotate reciprocally. In this way, it is convenient to drive the anti-blocking rods to rotate reciprocally, and the anti-blocking rods push the stones at the input port of the small suction port to become loose, further reducing the situation that the inside of the small suction port is blocked and affecting the dredging efficiency of the device.

[0016] Furthermore, the reciprocating mechanism includes a double-sided rack fixedly connected to the top of the anti-blocking rack. An incomplete gear one is rotatably connected inside the second sealed chamber. An incomplete gear two is fixedly connected to one end of the graded roller. One end of the double-sided rack is meshed with the incomplete gear one and the incomplete gear two respectively. A synchronization component for driving the incomplete gear two and the incomplete gear one to rotate synchronously and in opposite directions is installed at one end of the graded roller.

[0017] By adopting the above technical solution, through the coordinated use of the synchronization component with the second incomplete gear, the first incomplete gear, and the double-sided rack, when driving the grading roller to rotate, the synchronization component drives the second incomplete gear, the first incomplete gear, and the double-sided rack to form an alternating engagement, thereby using the alternating engagement between the double-sided rack and the first incomplete gear and the second incomplete gear to push the double-sided rack to drive the anti-blocking rack to reciprocate along the length direction of the second sealing chamber, so as to facilitate driving the anti-blocking rack to reciprocate along the length direction of the second sealing chamber, effectively improving the practicability of the device.

[0018] Further, the synchronization component includes a first conversion gear fixedly connected to one end of the first incomplete gear, and a second conversion gear fixedly connected to one end of the grading roller and meshing with the first conversion gear.

[0019] By adopting the above technical solution, through the coordinated use of the first conversion gear and the second conversion gear, when driving the grading roller to rotate, the second conversion gear is driven to mesh with the first conversion gear, and the second conversion gear and the first conversion gear respectively drive the first incomplete gear and the second incomplete gear to rotate in opposite directions, so that the first incomplete gear, the second incomplete gear, and the double-sided rack form an alternating engagement, thereby facilitating the formation of an alternating engagement between the first incomplete gear, the second incomplete gear, and the double-sided rack, further improving the practicability of the device.

[0020] Further, the surfaces of the suction table, the gripping teeth, and the grading roller are all coated with silicone waterproof paint.

[0021] By adopting the above technical solution, by setting the silicone waterproof paint, the anti-rust property of the device is effectively improved, and the service life of the device is prolonged.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. By the coordinated use of the driving component with the grading gear and the grading roller, when the stones broken by the rock breaker enter the interior of the suction table through the suction chamber, the grading roller grades the stones with larger sizes and blocks them from entering the interior of the small suction ports. At the same time, the driving component is started to drive the two grading rollers to drive the two grading gears to mesh, and the two grading rollers push the stones stuck in the suction chamber towards the direction of the two large suction ports, and cooperate with the first suction pipe and the second suction pipe to respectively extract the stones with smaller sizes and larger sizes from the interior of the suction table and discharge them to both sides of the seabed, so as to facilitate the grading suction of the stones broken by the rock breaker, effectively reducing the situation that the stones with larger sizes block the suction pipeline, resulting in blockage and reducing the dredging efficiency of the device.

[0023] 2. By setting up the transmission mechanism and cooperating with the anti-blocking rod and the anti-blocking plate, when the driving assembly is started to drive the grading roller to rotate, the grading roller cooperates with the transmission mechanism to drive the anti-blocking rod to rotate back and forth, so that the anti-blocking rod cooperates with the anti-blocking plate to flip the stones blocking the input end of the small suction port, so that the stones are separated from the inside of the suction bin along the inclined direction of the anti-blocking rod, thereby effectively reducing the blockage inside the suction port and further improving the dredging efficiency of the device.

[0024] 3. By setting up the coordination of the reciprocating mechanism with the anti-blocking rack and the anti-blocking gear, when the driving assembly is started to drive the grading roller to rotate, the grading roller cooperates with the reciprocating mechanism to drive the anti-blocking rack to reciprocate along the length direction of the sealing chamber 2, and at the same time, the anti-blocking rack is meshed with the anti-blocking gear, and the anti-blocking gear drives the anti-blocking rod to reciprocate, so as to facilitate driving the anti-blocking rod to reciprocate, so that the anti-blocking rod pushes the stones at the input port of the small suction port to loosen, further reducing the blockage inside the small suction port and affecting the dredging efficiency of the device.

[0025] 4. By setting up the coordination of the synchronous component with the incomplete gear 2, the incomplete gear 1 and the double-sided rack, when the grading roller is driven to rotate, the coordinated synchronous component drives the incomplete gear 2, the incomplete gear 1 and the double-sided rack to form a staggered meshing, so as to utilize the staggered meshing of the double-sided rack with the incomplete gear 1 and the incomplete gear 2 to push the double-sided rack to drive the anti-blocking rack to reciprocate along the length direction of the sealing bin 2, thereby facilitating the driving of the anti-blocking rack to reciprocate along the length direction of the sealing bin 2, and effectively improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is an exploded view of the internal structure of the suction table in this application.

[0028] Figure 3 It is a schematic diagram of the internal structure of the sealed chamber 2 in this application.

[0029] Figure 4 It is an exploded view of the internal structure of the sealed chamber 2 in this application.

[0030] Figure 5 It is a schematic diagram of the connection relationship between the double-sided rack and the incomplete gear 1 and the incomplete gear 2 in the present application.

[0031] Description of reference numerals: 1. Support frame; 2. First hydraulic rod; 3. Mounting frame; 4. Rock breaker; 5. Suction table; 6. Second hydraulic rod; 7. Ground-gripping teeth; 8. Large suction port; 9. First suction pipe; 10. Small suction port; 11. Second suction pipe; 12. Suction chamber; 13. Classification roller; 14. First sealed chamber; 15. Classification gear; 16. Mounting chamber; 17. Driving worm gear; 18. Driving worm; 19. Driving motor; 20. Classification bump; 21. Second sealed chamber; 22. Anti-blocking rod; 23. Anti-blocking plate; 24. Anti-blocking gear; 25. Anti-blocking rack; 26. Double-sided rack; 27. First incomplete gear; 28. Second incomplete gear; 29. First conversion gear; 30. Second conversion gear. Detailed implementation manner

[0032] The following further describes the present application in conjunction with Figure 1 —5 in further detail.

[0033] An embodiment of the present application discloses a rock-breaking harrow head.

[0034] Referring to Figure 1 and Figure 2 , a rock-breaking harrow head includes a support frame 1. The middle section of the support frame 1 is hinged with a first hydraulic rod 2. The output end of the first hydraulic rod 2 is fixedly connected with a mounting frame 3. The bottom of the mounting frame 3 is fixedly connected with a rock breaker 4. One end of the support frame 1 is hinged with a suction table 5. And the middle section of the support frame 1 is hinged with a second hydraulic rod 6. The output end of the second hydraulic rod 6 is hinged with the suction table 5. The bottom of the suction table 5 is fixedly connected with ground-gripping teeth 7. One end of the ground-gripping teeth 7 is symmetrically provided with a large suction port 8. One end of the large suction port 8 is fixedly connected with a first suction pipe 9. A small suction port 10 is opened inside the suction table 5. The output end of the small suction port 10 is fixedly connected with a second suction pipe 11. A suction chamber 12 communicating with the small suction port 10 is opened at one end of the suction table 5. Two classification rollers 13 are symmetrically rotatably connected inside the suction chamber 12. A first sealed chamber 14 is opened inside the suction table 5. One end of the classification roller 13 extends into the first sealed chamber 14 and is fixedly connected with a classification gear 15. The two classification gears 15 mesh with each other. A driving component for driving the classification roller 13 to rotate is installed inside the suction table 5; Among them, the driving component includes a mounting chamber 16 opened inside the suction table 5. One end of a classification roller 13 extends into the mounting chamber 16 and is fixedly connected with a driving worm gear 17. A driving worm 18 meshing with the driving worm gear 17 is rotatably connected inside the mounting chamber 16. A driving motor 19 is fixedly connected inside the mounting chamber 16. The output end of the driving motor 19 is fixedly connected with the driving worm 18.

[0035] During use, first, by starting the first hydraulic rod 2 and the rock breaker 4, the first hydraulic rod 2 pushes the mounting frame 3 to drive the rock breaker 4 to fit along the moving direction of the ship and the riverbed, and breaks the large hard stones on the riverbed. After the large stones on the riverbed are broken, they are scattered into smaller stones. Then, as the ship moves, it drives the support frame 1 to pull the suction table 5 towards the broken stones, so that the stones enter the inside of the suction table 5 through the suction bin 12; At the same time, it enables the smaller stones to pass through the bottom of the grading roller 13 and enter the small suction port 10, and then the small suction port 10 cooperates with the second suction pipe 11 to extract the smaller stones from the inside of the suction table 5 and discharge them to both sides of the seabed. The larger stones are restricted by the grading roller 13 and the inner wall of the suction bin 12 and are stuck on one side of the grading roller 13; At this time, by starting the drive motor 19 to drive the drive worm 18 to rotate, and driving the drive worm 18 to mesh with the drive worm wheel 17, the drive worm wheel 17 drives one grading roller 13 to rotate. At the same time, one grading roller 13 drives one grading gear 15 to mesh with another grading gear 15, and the other grading gear 15 drives the other grading roller 13 to rotate in the opposite direction. Furthermore, the two grading rollers 13 make rotational movements in opposite directions around the hinge shaft, and the grading roller 13 pushes the larger stones stuck inside the suction bin 12 to move to both sides, so that the larger stones are pushed by the grading roller 13 through the large suction port 8, cooperate with the first suction pipe 9 to extract them from the inside of the suction table 5, and discharge them to both sides of the seabed. This facilitates the grading suction of the stones broken by the rock breaker 4, effectively reducing the situation where larger stones block the suction pipeline, resulting in blockage and reducing the dredging efficiency of the device.

[0036] Refer to Figure 1 and Figure 2 , a plurality of grading bumps 20 are uniformly and fixedly connected to the surface of the grading roller 13.

[0037] During use, when the grading roller 13 is driven to rotate, it makes the grading roller 13 form a resistance against the stones stuck inside the suction bin 12, effectively increasing the friction between the grading roller 13 and the stones, enabling the grading roller 13 to quickly push the stones towards the large suction port 8, thereby effectively improving the practicality of the device.

[0038] Refer to Figure 2 - Figure 5, a second sealing chamber 21 is provided inside the suction table 5. A plurality of anti-blocking rods 22 are evenly and rotatably connected to the inner bottom of the second sealing chamber 21. One end of the anti-blocking rod 22 passes through the suction table 5 and extends to the input end of the small suction port 10. The plurality of anti-blocking rods 22 are inclined towards the inside of the suction chamber 12. One end of the anti-blocking rod 22 is symmetrically and fixedly connected with an anti-blocking plate 23. A transmission mechanism for driving the anti-blocking rod 22 to rotate reciprocally is installed inside the second sealing chamber 21; Among them, the transmission mechanism includes an anti-blocking gear 24 fixedly connected to the top of the anti-blocking rod 22. The anti-blocking gear 24 is installed inside the second sealing chamber 21. Anti-blocking racks 25 are symmetrically and slidably connected to the inner bottom of the second sealing chamber 21. The anti-blocking racks 25 are meshed with the anti-blocking gear 24. A reciprocating mechanism for driving the anti-blocking rack 25 to slide reciprocally along the length direction of the second sealing chamber 21 is installed inside the second sealing chamber 21; Moreover, the reciprocating mechanism includes a double-sided rack 26 fixedly connected to the top of the anti-blocking rack 25. An incomplete gear one 27 is rotatably connected inside the second sealing chamber 21. One end of the grading roller 13 is fixedly connected with an incomplete gear two 28. One end of the double-sided rack 26 is respectively meshed with the incomplete gear one 27 and the incomplete gear two 28. A synchronization component for driving the incomplete gear two 28 and the incomplete gear one 27 to rotate synchronously and in opposite directions is installed at one end of the grading roller 13; Moreover, the synchronization component includes a conversion gear one 29 fixedly connected to one end of the incomplete gear one 27. A conversion gear two 30 meshed with the conversion gear one 29 is fixedly connected to one end of the grading roller 13.

[0039] During use, when the driving component is started to drive the grading roller 13 to rotate, the grading roller 13 drives the conversion gear two 30 to rotate, and the conversion gear two 30 is meshed with the conversion gear one 29, and at the same time drives the conversion gear one 29 to rotate, so that the conversion gear two 30 and the conversion gear one 29 respectively drive the incomplete gear two 28 and the incomplete gear one 27 to rotate, and the incomplete gear two 28 and the incomplete gear one 27 are respectively meshed with the double-sided rack 26 in an interleaved manner. Furthermore, when the incomplete gear two 28 is meshed with the double-sided rack 26, it pushes the double-sided rack 26 to drive the anti-blocking rack 25 to move leftward along the length direction of the second sealing chamber 21, and when the incomplete gear one 27 is meshed with the double-sided rack 26, it pushes the double-sided rack 26 to drive the anti-blocking rack 25 to move rightward in the reverse direction along the length of the second sealing chamber 21, so as to facilitate driving the anti-blocking rack 25 to move reciprocally along the length direction of the second sealing chamber 21; At the same time, the anti-blocking rack 25 is meshed with the anti-blocking gear 24, and the anti-blocking gear 24 is driven to drive the anti-blocking rod 22 to rotate back and forth, so that the anti-blocking rod 22 drives the anti-blocking plate 23 to rotate back and forth, and the anti-blocking plate 23 pushes the stones stuck at the input end of the small suction port 10 to flip outward, so as to reduce the blockage inside the small suction port 10, and further improve the dredging efficiency of the device.

[0040] Reference Figure 1 and Figure 2 The surfaces of the suction table 5, the grouser 7 and the grading roller 13 are all coated with organic silicon waterproof coating.

[0041] When in use, a silicone waterproof coating is coated on the surface of the suction table 5, the groping teeth 7 and the grading roller 13, so that a waterproof protective layer is formed on the surface of the suction table 5, the groping teeth 7 and the grading roller 13, which effectively improves the corrosion resistance of the surface of the suction table 5, the groping teeth 7 and the grading roller 13 and prolongs the service life of the device.

[0042] The implementation principle of a rock crushing rake head of the present embodiment is as follows: firstly, by starting the hydraulic rod 12 and the rock breaker 4, the hydraulic rod 12 pushes the mounting frame 3 to drive the rock breaker 4 to fit the riverbed along the moving direction of the ship, and crushes the hard large rocks on the riverbed, so that the large rocks on the riverbed are scattered into smaller rocks after being crushed, and then, with the movement of the ship, the support frame 1 is driven to pull the suction platform 5 to move in the direction of the crushed rocks, so that the rocks pass through the suction bin 12 into the interior of the suction platform 5, and at the same time, the smaller rocks pass through the bottom of the grading roller 13 into the small suction port 10, and then the smaller rocks are sucked out of the interior of the suction platform 5 through the small suction port 10 in cooperation with the suction pipe 2 11 and discharged to both sides of the seabed, while the larger rocks are restricted by the grading roller 13 and the inner wall of the suction bin 12, and are stuck on one side of the grading roller 13; Then, the driving motor 19 is started to drive the driving worm 18 to rotate, and the driving worm 18 is driven to mesh with the driving worm wheel 17, so that the driving worm wheel 17 drives a grading roller 13 to rotate, and at the same time, one grading roller 13 drives a grading gear 15 to mesh with another grading gear 15, and the other grading gear 15 drives the other grading roller 13 to rotate in the opposite direction, so that the two grading rollers 13 rotate in opposite directions around the hinge shaft, and the grading rollers 13 push the larger stones stuck in the suction bin 12 to move to both sides, so that the larger stones are pushed by the grading rollers 13 through the large suction port 8, and are pulled out of the suction platform 5 in cooperation with the suction pipe 9, and are arranged side by side on both sides of the seabed; Meanwhile, the grading roller 13 drives the second conversion gear 30 to rotate, causing the second conversion gear 30 to mesh with the first conversion gear 29 and drive the first conversion gear 29 to rotate. As a result, the second conversion gear 30 and the first conversion gear 29 drive the second incomplete gear 28 and the first incomplete gear 27 to rotate respectively, and the second incomplete gear 28 and the first incomplete gear 27 mesh with the double-sided rack 26 in a staggered manner. Furthermore, when the second incomplete gear 28 meshes with the double-sided rack 26, it pushes the double-sided rack 26 to drive the anti-blocking rack 25 to move leftward along the length direction of the second sealing chamber 21, and when the first incomplete gear 27 meshes with the double-sided rack 26, it pushes the double-sided rack 26 to drive the anti-blocking rack 25 to move rightward in the reverse direction along the length of the second sealing chamber 21. This facilitates driving the anti-blocking rack 25 to reciprocate along the length direction of the second sealing chamber 21. At the same time, the anti-blocking rack 25 meshes with the anti-blocking gear 24, and drives the anti-blocking gear 24 to drive the anti-blocking rod 22 to rotate reciprocally, so that the anti-blocking rod 22 drives the anti-blocking plate 23 to rotate reciprocally, and the anti-blocking plate 23 pushes the stones stuck at the input end of the small suction port 10 to turn outwards, reducing the occurrence of blockage inside the small suction port 10.

Claims

1. A rock crushing rake head, comprising a support frame (1), characterized in that: A hydraulic rod 1 (2) is hingedly connected to the middle section of the support frame (1), the output end of the hydraulic rod 1 (2) is fixedly connected to a mounting frame (3), the bottom of the mounting frame (3) is fixedly connected to a rock breaker (4), one end of the support frame (1) is hingedly connected to a suction platform (5), and a hydraulic rod 2 (6) is hingedly connected to the middle section of the support frame (1), the output end of the hydraulic rod 2 (6) is hingedly connected to the suction platform (5), the bottom of the suction platform (5) is fixedly connected to a grappling tooth (7), one end of the grappling tooth (7) is symmetrically provided with a large suction port (8), one end of the large suction port (8) is fixedly connected to a suction pipe 1 (9), and the suction platform (5) is hingedly connected to the bottom of the suction platform (5). A small suction port (10) is provided inside, and a suction pipe 2 (11) is fixedly connected to the output end of the small suction port (10). A suction bin (12) connected to the small suction port (10) is provided at one end of the suction platform (5), and a grading roller (13) is symmetrically rotatably connected inside the suction bin (12). A sealing bin 1 (14) is provided inside the suction platform (5), and one end of the grading roller (13) extends into the inside of the sealing bin 1 (14) and is fixedly connected to a grading gear (15). The two grading gears (15) are meshed with each other. A driving component for driving the grading roller (13) to rotate is installed inside the suction platform (5).

2. A rock crushing drag head according to claim 1, characterized in that: The drive assembly comprises a mounting bin (16) opened inside the suction table (5); one end of one of the grading rollers (13) extends into the mounting bin (16) and is fixedly connected to a driving worm gear (17); a driving worm (18) meshing with the driving worm gear (17) is rotatably connected inside the mounting bin (16); a driving motor (19) is fixedly connected inside the mounting bin (16); and an output end of the driving motor (19) is fixedly connected to the driving worm gear (18).

3. The rock crushing drag head according to claim 1, characterized in that: A plurality of grading protrusions (20) are evenly and fixedly connected to the surface of the grading roller (13).

4. The rock crushing drag head according to claim 1, characterized in that: A sealed chamber 2 (21) is provided inside the suction table (5), and a plurality of anti-blocking rods (22) are evenly rotatably connected to the inner bottom of the sealed chamber 2 (21). One end of the anti-blocking rod (22) passes through the suction table (5) and extends to the input end of the small suction port (10). The plurality of anti-blocking rods (22) are inclined toward the inside of the suction chamber (12), and one end of the anti-blocking rod (22) is symmetrically fixedly connected to an anti-blocking plate (23). A transmission mechanism for driving the anti-blocking rod (22) to reciprocate is installed inside the sealed chamber 2 (21).

5. The rock crushing drag head according to claim 4, characterized in that: The transmission mechanism comprises an anti-blocking gear (24) fixedly connected to the top of the anti-blocking rod (22); the anti-blocking gear (24) is installed inside the second sealing chamber (21); an anti-blocking rack (25) is symmetrically slidably connected to the inner bottom of the second sealing chamber (21); the anti-blocking rack (25) is meshed with the anti-blocking gear (24); and a reciprocating mechanism for driving the anti-blocking rack (25) to slide back and forth along the length direction of the second sealing chamber (21) is installed inside the second sealing chamber (21).

6. The rock crushing drag head according to claim 5, characterized in that: The reciprocating mechanism comprises a double-sided rack (26) fixedly connected to the top of the anti-blocking rack (25); the sealing chamber (21) is internally rotatably connected to an incomplete gear (27); one end of the grading roller (13) is fixedly connected to an incomplete gear (28); one end of the double-sided rack (26) is respectively meshed with the incomplete gear (27) and the incomplete gear (28); and one end of the grading roller (13) is provided with a synchronizing component for driving the incomplete gear (28) to rotate synchronously with the incomplete gear (27) and in opposite directions.

7. The rock crushing drag head according to claim 6, characterized in that: The synchronization component comprises a conversion gear 1 (29) fixedly connected to one end of an incomplete gear 1 (27), and one end of the grading roller (13) is fixedly connected to a conversion gear 2 (30) meshing with the conversion gear 1 (29).

8. The rock crushing drag head according to claim 1, characterized in that: The surfaces of the suction table (5), the grouser (7) and the grading roller (13) are all coated with organic silicon waterproof coating.

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