A riverbed rock breaking device

Abstract

This invention relates to the field of rock-breaking equipment technology and discloses a riverbed rock-breaking device, including a hull and a rock-breaking machine. The hull is equipped with lifting equipment. The rock-breaking machine includes a cutterhead, an mounting sleeve, and a support sleeve. The cutterhead is rotatably mounted on the bottom of the mounting sleeve, and the support sleeve is slidably fitted onto the mounting sleeve. The mounting sleeve contains a drive mechanism for rotating the cutterhead, and the support sleeve contains a hydraulic cylinder for moving the mounting sleeve up and down. The support sleeve also has a counterweight, and multiple sets of support components are mounted on its side wall. Each support component includes an elastic telescopic rod, a limiting drill rod, and a first motor for driving the limiting drill rod to rotate. A support plate for mounting the support components is formed on the outer side wall of the support sleeve, and a level sensor is mounted on the support plate. The elastic telescopic rod is fixedly mounted on the bottom of the support plate, and the limiting drill rod is rotatably mounted on the bottom of the support plate. This device can adapt to riverbeds of different depths and eliminates the need for splicing drill rods, making operation simpler and faster.

Description

Technical Field

[0001] This invention belongs to the technical field of rock-breaking equipment, specifically relating to a riverbed rock-breaking device. Background Technology

[0002] With the rapid development of shipping demand, the existing width and depth of waterways can no longer meet the needs of shipping. Waterway widening and deepening construction has become a major area of ​​engineering construction. Currently, waterway widening and deepening construction generally uses cutter suction dredgers when encountering silt, soft soil, and sandy strata; while rock breaking construction is generally required when encountering soft rock, hard rock, or extremely hard rock.

[0003] When breaking rocks in riverbeds, traditional rock-breaking equipment mainly relies on mechanical cutters for rock-breaking operations. The cutterhead is connected by drill rods and lowered into the riverbed to break rocks. In deeper waters, a large number of drill rods need to be spliced ​​together, and the operation is carried out on the hull. When the wind and waves are large, the hull sways violently, making the operation complex, time-consuming, and labor-intensive.

[0004] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Summary of the Invention

[0005] The purpose of this invention is to provide a riverbed rock-breaking device that can adapt to riverbeds of different depths and does not require splicing drill rods, making operation simpler and faster.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0007] A riverbed rock-breaking device includes a hull and a rock-breaking machine. The hull is equipped with a lifting device for hoisting the rock-breaking machine. The rock-breaking machine includes a cutterhead, a mounting sleeve, and a support sleeve. The cutterhead is rotatably mounted on the bottom of the mounting sleeve, and the support sleeve is slidably fitted onto the mounting sleeve. The mounting sleeve contains a drive mechanism for rotating the cutterhead, and the support sleeve contains a hydraulic cylinder for moving the mounting sleeve up and down. The support sleeve also has a counterweight, and multiple sets of support components are provided on its side wall. Each support component includes an elastic telescopic rod, a limiting drill rod, and a first motor for driving the limiting drill rod to rotate. A support plate for mounting the support components is formed on the outer side wall of the support sleeve, and a level sensor is provided on the support plate. The elastic telescopic rod is fixedly mounted on the bottom of the support plate, and the limiting drill rod is rotatably mounted on the bottom of the support plate. The lifting device includes a fixed frame and an electric hoist mounted on the fixed frame, with the wire rope of the electric hoist connected to the top of the support sleeve.

[0008] Furthermore, the bottom of the elastic telescopic rod is provided with multiple limiting feet, which are arranged in a circular array; the length of the limiting drill rod is less than the length of the support sleeve. The limiting feet provide a limiting effect when the drill rod rotates, preventing the entire support sleeve from rotating.

[0009] Furthermore, the support assembly also includes a monitoring component for monitoring the drilling depth of the limiting drill rod. The monitoring component includes a toothed rack and a first gear meshing with the toothed rack. The toothed rack is slidably mounted on the support plate, and the first gear is rotatably mounted on the top of the support plate. The toothed rack is arranged parallel to the limiting drill rod. A top plate, flush with the bottom of the limiting drill rod, is provided at the bottom of the toothed rack. A counter is also provided on the support plate to count the number of rotations of the first gear. The monitoring component can be used to monitor the depth of the drill rod's downward rotation.

[0010] Furthermore, a through groove is formed on the support plate for the gear rack to pass through, guide grooves are formed on both sides of the through groove, guide blocks that mate with the guide grooves are formed on both sides of the gear rack, and a limiting plate is formed on the side of the gear rack away from the first gear. The limiting plate can prevent the gear rack from falling out of the through groove.

[0011] Furthermore, the outer wall of the support sleeve is provided with a bearing plate for placing the counterweight, and the bearing plate is provided with multiple limiting posts; there are multiple counterweights, and the counterweights are ring-shaped and fitted onto the support sleeve, with multiple limiting holes formed on the counterweights to mate with the limiting posts; the bearing plate is located above the support plate. The limiting posts can better fix the counterweights in place.

[0012] Furthermore, the cutter head includes a cutter head frame and multiple roller cutters rotatably mounted on the cutter head frame. The cutter head frame includes a rock-breaking section and a chip-removing section. The rock-breaking section is frustum-shaped, and the area of ​​its upper bottom surface is larger than the area of ​​its lower bottom surface. The roller cutters are rotatably mounted on the side of the rock-breaking section. The chip-removing section is cylindrical, and several chip-removing grooves are formed on its side surface. Several abrasive particles are also provided on the side surface of the rock-breaking section. The roller cutters break up the rock strata, and then the abrasive particles grind the rocks into slag, which is finally discharged from the broken pits through the chip-removing grooves.

[0013] Furthermore, a positioning drill bit is provided at the bottom of the rock-breaking section, and the positioning drill bit is detachably connected to the rock-breaking section. The positioning drill bit can be used to locate the breaking part in advance, and the drill bit can be used to perform preliminary breaking of the rock strata.

[0014] Furthermore, the cutter head holder is also equipped with a rotating block connected to the mounting sleeve. The rotating block is located at the top of the chip removal section, and a plurality of ball bearings are provided between the rotating block and the mounting sleeve. The driving mechanism includes a second gear and a second motor that drives the second gear to rotate. The rotating block is equipped with an internal gear ring that meshes with the second gear, which is a bevel gear. A first mounting plate is provided inside the mounting sleeve, and the second gear is rotatably mounted on the first mounting plate. The second motor is fixedly mounted on the first mounting plate. The ball bearings make the rotation between the cutter head holder and the mounting sleeve smoother.

[0015] Furthermore, the inner wall of the support sleeve is formed with multiple limiting grooves, and the outer wall of the mounting sleeve is formed with limiting sliders that cooperate with the limiting grooves; a second mounting plate is provided inside the support sleeve, and the hydraulic cylinder is fixedly mounted on the second mounting plate. The cooperation between the limiting grooves and the limiting sliders makes the mounting sleeve more stable when sliding up and down.

[0016] With the above structure, the riverbed rock-breaking device of the present invention, compared with the prior art, uses a lifting device on the hull to lower the rock-breaking machine to the riverbed to break the hard rock. This allows for free adjustment of the rock-breaking machine's lowering depth to adapt to waters of different depths. During the breaking process, there is no need to splice drill rods, making the overall operation more convenient. Furthermore, since the rock-breaking machine and the hull are connected flexibly, the rock strata at the target location can be broken even in the event of strong winds and waves and swaying of the hull. Attached Figure Description

[0017] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the rock breaker in this invention;

[0020] Figure 3 for Figure 2 A cross-sectional schematic diagram;

[0021] Figure 4 This is a schematic diagram of the support sleeve in this invention;

[0022] Figure 5 for Figure 4 A schematic diagram of the decomposed structure;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of the partial structure at point A in the middle;

[0024] Figure 7 This is a schematic diagram of the toothed rack structure in this invention;

[0025] Figure 8 This is a schematic diagram of the structure of the cutter head and drive mechanism in this invention;

[0026] Figure 9 This is a schematic diagram of the structure of the mounting sleeve in this invention.

[0027] The symbols for the main components are explained as follows: hull 1, cutter head 2, cutter head holder 21, rock breaking section 211, grinding particles 2111, chip removal section 212, chip removal groove 2121, hobbing cutter 22, positioning drill bit 23, rotating block 24, internal gear ring 241, ball bearing 25, mounting sleeve 3, first mounting plate 31, limiting slider 32, support sleeve 4, support plate 41, through groove 411, bearing plate 42, limiting post 421, limiting slide groove 43, second mounting plate 44, drive mechanism 5, second gear 51, second motor 52, hydraulic cylinder 6, counterweight block 7, limiting hole 71, support assembly 8, elastic telescopic rod 81, limiting support foot 811, limiting drill rod 82, first motor 84, monitoring assembly 83, gear rack 831, top plate 8311, guide block 8312, limiting plate 8313, first gear 832, fixing frame 91, electric hoist 92. Detailed Implementation

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0029] like Figures 1-9As shown, this invention relates to a riverbed rock-breaking device, comprising a hull 1 and a rock-breaking machine. The hull 1 is equipped with lifting equipment for hoisting the rock-breaking machine. The rock-breaking machine includes a cutter head 2, an mounting sleeve 3, and a support sleeve 4. The cutter head 2 is rotatably mounted on the bottom of the mounting sleeve 3, and the support sleeve 4 is slidably fitted onto the mounting sleeve 3. The mounting sleeve 3 is equipped with a drive mechanism 5 for rotating the cutter head 2, and the support sleeve 4 is equipped with a hydraulic cylinder 6 for moving the mounting sleeve 3 up and down. The support sleeve 4 is also equipped with a counterweight 7, and multiple sets of supports are provided on the side wall of the support sleeve 4. The support assembly 8 includes an elastic telescopic rod 81, a limiting drill rod 82, and a first motor 84 for driving the limiting drill rod 82 to rotate. A support plate 41 for mounting the support assembly 8 is formed on the outer wall of the support sleeve 4, and a level sensor is provided on the support plate 41. The elastic telescopic rod 81 is fixedly installed at the bottom of the support plate 41, and the limiting drill rod 82 is rotatably installed at the bottom of the support plate 41. The lifting equipment includes a fixed frame 91 and an electric hoist 92 mounted on the fixed frame 91, with the wire rope of the electric hoist 92 connected to the top of the support sleeve 4. In this embodiment, there are three sets of support assemblies 8, arranged in a circular array along the axis of the support sleeve 4. The bottom of the elastic telescopic rod 81 is provided with multiple limiting legs 811, arranged in a circular array. The length of the limiting drill rod 82 is less than the length of the elastic telescopic rod 81. During operation, the rock breaker is lowered to the riverbed using an electric hoist 92. Before the rock breaker is fixed to the riverbed, the force on the rock breaker is still on the wire rope, keeping the rock breaker vertical. When fixing the rock breaker, the first motor 84 drives the limiting drill rod 82 to rotate. At this time, the wire rope is slowly lowered, and the limiting drill rod 82 rotates downward under the action of the counterweight 7 (during this process, the level sensor can determine whether the rock breaker is maintaining a horizontal state, and the wire rope can be used for adjustment). However, when the limiting drill rod 82 rotates, the riverbed may be uneven. In this state, only one set of limiting drill rods 82 is in contact with the riverbed, which could cause the entire rock breaker to rotate. Therefore, elastic telescopic rods 81 are installed. Since the length of the elastic telescopic rods 81 is longer than that of the limiting drill rods 82, multiple sets of elastic telescopic rods 81 can preferentially touch the bottom for limiting. Furthermore, multiple limiting support feet 811 can further prevent the entire rock breaker from rotating. After multiple limiting drill rods 82 have drilled into the rock layer, the drive mechanism 5 is activated to make the entire cutterhead 2 rotate. Then, under the action of the hydraulic cylinder 6, the mounting sleeve 3 is driven downward, causing the cutterhead 2 to break the rock layer. In addition, under the action of the counterweight 7, the entire support sleeve 4 can be prevented from being pushed upward in the opposite direction.

[0030] To ensure the rock breaker remains horizontal, each support assembly 8 drills to a different depth. However, to prevent the support sleeve 4 from rotating while the cutterhead 2 is rotating, the limiting drill rod 82 must maintain a certain drilling depth. Therefore, the support assembly 8 also includes a monitoring assembly 83 to monitor the drilling depth of the limiting drill rod 82. The monitoring assembly 83 includes a toothed rack 831 and a first gear 832 meshing with the toothed rack 831. The toothed rack 831 is slidably mounted on the support plate 41, and the first gear 832... The gear 831 is rotatably mounted on the top of the support plate 41, and is arranged parallel to the limiting drill rod 82. The bottom of the gear 831 has a top plate 8311 flush with the bottom of the limiting drill rod 82. To ensure the top plate 8311 can properly contact the riverbed surface and allow the limiting drill rod 82 to rise normally during drilling, the top plate 8311 has a through hole for the limiting drill rod 82 to pass through. The support plate 41 also has a counter to count the number of rotations of the first gear 832. Specifically, when the limiting drill rod 82 drills downwards, the gear 831 rises, driving the first gear 832 to rotate. By monitoring the number of rotations of the first gear 832 through the counter, the drilling depth of the limiting drill rod 82 can be calculated.

[0031] In this embodiment, a through groove 411 is formed on the support plate 41 for the toothed rack 831 to pass through. Guide grooves are formed on both sides of the through groove 411, and guide blocks 8312 that cooperate with the guide grooves are formed on both sides of the toothed rack 831. A limiting plate 8313 is formed on the side of the toothed rack 831 away from the first gear 832. The guide grooves and guide blocks 8312 can make the toothed rack 831 more stable when moving, and the limiting plate 8313 can prevent the toothed rack 831 from falling out of the through groove 411 during the lifting of the rock breaker.

[0032] In this embodiment, to better install and place the counterweight 7, a bearing plate 42 for placing the counterweight 7 is provided on the outer wall of the support sleeve 4. The bearing plate 42 is provided with multiple limiting posts 421. There are multiple counterweights 7, and the counterweights 7 are ring-shaped and sleeved on the support sleeve 4. Multiple limiting holes 71 are formed on the counterweights 7 to cooperate with the limiting posts 421. The bearing plate 42 is located above the support plate 41. By setting multiple counterweights 7, different numbers of counterweights 7 can be selected according to the different hardness of the rock strata. Specifically, the harder the rock strata, the more counterweights 7 need to be installed.

[0033] In this embodiment, the cutter head 2 includes a cutter head 2 frame and multiple roller cutters 22 rotatably mounted on the cutter head 2 frame. The roller cutters 22 are multi-bladed roller cutters 22, which can increase the crushing area, improve efficiency, increase the strength of the roller cutters 22, and enhance the service life of the roller cutters 22. The cutter head 2 frame includes a rock-breaking section 211 and a chip-removing section 212. The rock-breaking section 211 is frustum-shaped, and the area of ​​the upper bottom surface of the rock-breaking section 211 is larger than the area of ​​the lower bottom surface. The roller cutters 22 are rotatably mounted on the side of the rock-breaking section 211. The chip-removing section 212 is cylindrical, and a plurality of chip-removing grooves 2121 are formed on the side of the chip-removing section 212. The chip-removing grooves 2121 are spiral-shaped and arranged in a circular array along the axis of the chip-removing section 212. A plurality of abrasive particles 2111 are also provided on the side of the rock-breaking section 211. The rock strata are broken by the roller cutter 22, and then the grinding particles 2111 grind the stones into slag, which are finally discharged from the broken pit through the chip discharge chute 2121.

[0034] Specifically, to improve crushing efficiency, a positioning drill bit 23 is provided at the bottom of the rock-breaking section 211. The positioning drill bit 23 is detachably connected to the rock-breaking section 211 via multiple bolts. The positioning drill bit 23 can be used to pre-position the crushing area. Since the drill bit is conical, it can more easily drill through the rock strata, thus performing preliminary crushing of the rock strata. However, the drill bit is easily damaged, so the positioning drill bit 23 is detachably connected to the rock-breaking section 211 for easy replacement.

[0035] In this embodiment, the cutter head 2 holder is also provided with a rotating block 24 connected to the mounting sleeve 3. The rotating block 24 is located at the top of the chip removal section 212, and a plurality of ball bearings 25 are provided between the rotating block 24 and the mounting sleeve 3. There are multiple sets of drive mechanisms 5, which are arranged in a circular array. The specific drive mechanism 5 includes a second gear 51 and a second motor 52 that drives the second gear 51 to rotate. The rotating block 24 is provided with an internal gear ring 241 that meshes with the second gear 51. The second gear 51 is a bevel gear. The mounting sleeve 3 is provided with a first mounting plate 31. The second gear 51 is rotatably mounted on the first mounting plate 31, and the second motor 52 is fixedly mounted on the first mounting plate 31. The ball bearings 25 make the rotation between the cutter head 2 holder and the mounting sleeve 3 smoother.

[0036] In this embodiment, to make the sliding between the mounting sleeve 3 and the supporting sleeve 4 more stable and smooth, multiple limiting grooves 43 are formed on the inner wall of the supporting sleeve 4, and limiting sliders 32 that cooperate with the limiting grooves 43 are formed on the outer wall of the mounting sleeve 3; a second mounting plate 44 is provided inside the supporting sleeve 4, and the hydraulic cylinder 6 is fixedly mounted on the second mounting plate 44. Furthermore, the cooperation between the limiting grooves 43 and the limiting sliders 32 can also prevent relative rotation between the mounting sleeve 3 and the supporting sleeve 4.

[0037] The method of using this invention is as follows: First, the rock breaker is lowered to the riverbed using an electric hoist 92. Before the rock breaker is fixed to the riverbed, the force on the rock breaker is still on the wire rope, keeping the rock breaker vertical. When fixing the rock breaker, the first motor 84 drives the limiting drill rod 82 to rotate. At this time, the wire rope is slowly lowered, and the limiting drill rod 82 rotates downward under the action of the counterweight 7. However, when the limiting drill rod 82 rotates, since the riverbed may be uneven, only one set of limiting drill rods 82 is in contact with the riverbed. Contact with the riverbed could cause the entire rock crusher to rotate. Therefore, elastic telescopic rods 81 are installed. Since the length of the elastic telescopic rods 81 is longer than that of the limiting drill rods 82, multiple sets of elastic telescopic rods 81 can preferentially contact the bottom for limiting. Furthermore, multiple limiting feet 811 can further prevent the entire rock crusher from rotating. After multiple limiting drill rods 82 have drilled into the rock layer, the drive mechanism 5 is activated to make the entire cutter head 2 rotate. Then, under the action of the hydraulic cylinder 6, the mounting sleeve 3 is driven downward to make the cutter head 2 crush the rock layer.

[0038] The above provides a detailed description of a riverbed rock-breaking device provided by the present invention. The specific embodiments are described only to aid in understanding the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A riverbed rock-breaking device, comprising a hull (1) and a rock-breaking machine, characterized in that: The hull (1) is equipped with lifting equipment for lifting the rock breaker; the rock breaker includes a cutter head (2), an mounting sleeve (3), and a support sleeve (4); the cutter head (2) is rotatably mounted on the bottom of the mounting sleeve (3), the support sleeve (4) is slidably mounted on the mounting sleeve (3), the mounting sleeve (3) is equipped with a drive mechanism (5) for driving the cutter head (2) to rotate, the support sleeve (4) is equipped with a hydraulic cylinder (6) for driving the mounting sleeve (3) to move up and down, and the support sleeve (4) is also equipped with a counterweight. (7) The side wall of the support sleeve (4) is also provided with multiple sets of support components (8); the support component (8) includes an elastic telescopic rod (81), a limiting drill rod (82) and a first motor (84) for driving the limiting drill rod (82) to rotate; a support plate (41) for mounting the support component (8) is formed on the outer side wall of the support sleeve (4), and a horizontal sensor is provided on the support plate (41); the elastic telescopic rod (81) is fixedly installed at the bottom of the support plate (41), and the limiting drill rod (82) is rotatably installed on the support plate (41). The bottom of the support plate (41); the lifting equipment includes a fixed frame (91) and an electric hoist (92) mounted on the fixed frame (91), the wire rope of the electric hoist (92) being connected to the top of the support sleeve (4); the bottom of the elastic telescopic rod (81) is provided with multiple limiting feet (811), the multiple limiting feet (811) being arranged in a circular array; the length of the limiting drill rod (82) is less than the length of the elastic telescopic rod (81); the cutter head (2) includes a cutter head frame (21) and multiple rotating components mounted on the cutter head frame (21). The cutter head (21) includes a rock-breaking section (211) and a chip-removing section (212). The rock-breaking section (211) is frustum-shaped, and the area of ​​the upper bottom surface of the rock-breaking section (211) is larger than the area of ​​the lower bottom surface. The cutter head (22) is rotatably mounted on the side of the rock-breaking section (211). The chip-removing section (212) is cylindrical, and a plurality of chip-removing grooves (2121) are formed on the side of the chip-removing section (212). A plurality of abrasive particles (2111) are also provided on the side of the rock-breaking section (211).

2. The riverbed rock-breaking device according to claim 1, characterized in that: The support assembly (8) further includes a monitoring assembly (83) for monitoring the drilling depth of the limiting drill rod (82). The monitoring assembly (83) includes a toothed rack (831) and a first gear (832) meshing with the toothed rack (831). The toothed rack (831) is slidably mounted on the support plate (41), and the first gear (832) is rotatably mounted on the top of the support plate (41). The toothed rack (831) is arranged parallel to the limiting drill rod (82). The bottom of the toothed rack (831) is provided with a top plate (8311) that is flush with the bottom of the limiting drill rod (82). The support plate (41) is also provided with a counter for counting the number of rotations of the first gear (832).

3. The riverbed rock-breaking device according to claim 2, characterized in that: The support plate (41) has a through groove (411) through which the toothed rack (831) passes. Guide grooves are formed on both sides of the through groove (411). Guide blocks (8312) that cooperate with the guide grooves are formed on both sides of the toothed rack (831). A limit plate (8313) is formed on the side of the toothed rack (831) away from the first gear (832).

4. A riverbed rock-breaking device according to claim 3, characterized in that: The outer wall of the support sleeve (4) is provided with a bearing plate (42) for placing the counterweight (7), and the bearing plate (42) is provided with multiple limiting posts (421); there are multiple counterweights (7), and the counterweights (7) are ring-shaped and sleeved on the support sleeve (4), and multiple limiting holes (71) are formed on the counterweights (7) to cooperate with the limiting posts (421); the bearing plate (42) is located above the support plate (41).

5. A riverbed rock-breaking device according to claim 1, characterized in that: The bottom of the rock-breaking section (211) is also provided with a positioning drill bit (23), which is detachably connected to the rock-breaking section (211).

6. A riverbed rock-breaking device according to claim 5, characterized in that: The cutter head holder (21) is also provided with a rotating block (24) connected to the mounting sleeve (3). The rotating block (24) is located at the top of the chip removal part (212). A plurality of balls (25) are provided between the rotating block (24) and the mounting sleeve (3). The drive mechanism (5) includes a second gear (51) and a second motor (52) that drives the second gear (51) to rotate. The rotating block (24) is provided with an internal gear ring (241) that meshes with the second gear (51). The second gear (51) is a bevel gear. The mounting sleeve (3) is provided with a first mounting plate (31). The second gear (51) is rotatably mounted on the first mounting plate (31). The second motor (52) is fixedly mounted on the first mounting plate (31).

7. A riverbed rock-breaking device according to claim 6, characterized in that: Multiple limiting grooves (43) are formed on the inner wall of the support sleeve (4), and a limiting slider (32) that cooperates with the limiting grooves (43) is formed on the outer wall of the mounting sleeve (3); a second mounting plate (44) is provided inside the support sleeve (4), and the hydraulic cylinder (6) is fixedly mounted on the second mounting plate (44).

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