Underwater riverbed rock breaking equipment

Abstract

The invention relates to the technical field of rock breaking equipment, and discloses underwater riverbed rock breaking equipment which comprises a pontoon and a rock breaking machine installed on the pontoon. The rock breaking machine comprises a mounting frame arranged on the pontoon, a mounting sleeve movably connected to the mounting frame, a lifting sleeve slidably mounted in the mounting sleeve and a cutter rotationally connected to the bottom end of the lifting sleeve. A driving mechanism for driving the cutterhead to rotate is also arranged in the lifting sleeve; the mounting frame is in universal connection with the mounting sleeve; a plurality of first hydraulic cylinders for driving the lifting sleeve to slide up and down are arranged in the mounting sleeve, cylinder bodies of the first hydraulic cylinders are fixedly connected to the inner wall of the mounting sleeve, and piston rods of the first hydraulic cylinders are fixedly connected to the top of the lifting sleeve; a plurality of vertically-arranged first limiting sliding grooves are formed in the inner wall of the mounting sleeve, and first limiting sliding blocks matched with the first limiting sliding grooves are arranged on the outer wall of the lifting sleeve. And during rock breaking, the cutter head is always in contact with the breaking position of a rock stratum, so that the rock breaking efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rock breaking equipment, and in particular relates to underwater riverbed rock breaking equipment. Background Art

[0002] With the rapid development of shipping demand, the current width and depth of waterways cannot meet the needs of shipping. Waterway widening and deepening construction has become an important field in current engineering construction. At present, waterway widening and deepening construction generally adopts suction dredger structure for construction in the case of silt, soft soil and silt formation; hydraulic breaker and high-frequency hammer are generally used for rock breaking construction in the case of soft rock, hard rock and extremely hard rock.

[0003] In some deep waters, when breaking rocks, the whole equipment is usually installed on a floating boat, which drives the equipment to move and breaks rocks on the riverbed. Due to the instability of the water surface, when the wind and waves are strong, the floating boat will drift and shake, causing the cutter head to shake during rock breaking, and it is impossible to always stay in the crushing position for rock breaking. This will not only result in low rock breaking efficiency, but also easily cause damage to the cutter head.

[0004] In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Summary of the invention

[0005] The purpose of the present invention is to provide an underwater riverbed rock breaking device, which can keep the cutter head in contact with the broken position of the rock layer at all times during rock breaking, thereby improving the rock breaking efficiency.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0007] An underwater riverbed rock breaking device comprises a floating boat and a rock breaker installed on the floating boat, the rock breaker comprises a mounting frame arranged on the floating boat, a mounting sleeve movably connected to the mounting frame, a lifting sleeve slidably mounted in the mounting sleeve and a cutter disc rotatably connected to the bottom end of the lifting sleeve; the lifting sleeve is also provided with a driving mechanism for driving the cutter disc to rotate; the mounting frame and the mounting sleeve are universally connected; the mounting sleeve is provided with a plurality of first hydraulic cylinders that drive the lifting sleeve to slide up and down, the cylinder body of the first hydraulic cylinder is solidly connected to the inner wall of the mounting sleeve, and the piston rod of the first hydraulic cylinder is fixedly connected to the top of the lifting sleeve; a plurality of vertically arranged first limiting slide grooves are formed on the inner wall of the mounting sleeve, and a first limiting sliding block cooperating with the first limiting slide groove is provided on the outer wall of the lifting sleeve.

[0008] Furthermore, a buffer sleeve is provided on the lifting sleeve; an annular cavity is formed on the wall of the lifting sleeve, and the annular cavity is coaxial with the buffer sleeve; the buffer sleeve is slidably connected in the annular cavity; a plurality of buffer springs are provided in the annular cavity, and the top end of the buffer spring is fixedly connected to the inner top wall of the annular cavity, and the bottom end is fixedly connected to the top of the buffer sleeve. The cooperation between the buffer sleeve and the buffer spring makes the contact between the cutter head and the rock formation flexible, which is more adaptable to the shaking of the floating ship.

[0009] Furthermore, a plurality of vertically arranged second limiting grooves are formed on the inner wall of the annular cavity, and a second limiting slider that slidably cooperates with the second limiting grooves is formed on the outer wall of the buffer sleeve. The cooperation between the second limiting grooves and the second limiting slider can make the up and down sliding of the lifting buffer sleeve more stable, and can prevent the buffer sleeve from rotating relative to the lifting sleeve.

[0010] Furthermore, the cutter disc is rotatably mounted at the lower part of the buffer sleeve; a mounting plate for mounting the driving mechanism is provided inside the buffer sleeve, and the cutter disc is located at the lower part of the mounting plate; the cutter disc includes a crushing part at the bottom of the buffer sleeve and a rotating shaft rotatably connected to the buffer sleeve, an annular groove is formed on the outer wall of the rotating shaft, and a rotating ring rotatably matched with the annular groove is formed on the inner wall of the buffer sleeve. The cooperation of the rotating ring and the annular groove can make the installation of the cutter disc more stable and the rotation of the cutter disc smoother.

[0011] Furthermore, an inner gear ring is provided on the top of the rotating shaft, and the inner gear ring is coaxially arranged with the ring punch sleeve; the driving mechanism includes a driving gear meshing with the inner gear ring and a driving motor; the driving gear is rotatably mounted on the mounting plate, and the driving motor is fixedly mounted on the mounting plate. Using gears to drive the cutter disc to rotate can make the transmission efficiency higher.

[0012] Furthermore, an outer spherical shell is provided on the mounting frame, and an inner sphere that is slidably matched with the outer spherical shell is provided on the top of the mounting sleeve; the bottom edge of the outer spherical shell extends outward to form a bearing plate, and a second hydraulic cylinder is fixedly installed on the top of the mounting frame, and the piston rod of the second hydraulic cylinder is fixedly connected to the top of the bearing plate. Through the cooperation between the inner sphere and the outer spherical shell, the mounting sleeve can adapt to the multi-angle connection between the mounting frame, and when the floating ship is shaking, the mounting sleeve can always remain vertically downward, thereby avoiding the misalignment of the cutter head and the crushing position.

[0013] Furthermore, the mounting frame is movably mounted on the floating boat, and a through slot is formed on the floating boat for the mounting sleeve to pass through, the length of the through slot is at least three times the width of the through slot, and the width of the through slot is at least twice the diameter of the mounting sleeve; the floating boat is also provided with a track for the mounting frame to move, the track is located on both sides of the through slot, and the bottom of the mounting frame is provided with a driving wheel that can move along the track. The mounting frame is movably mounted on the floating boat, and the length of the through slot is at least three times the width of the through slot, so that when the floating boat is kept in one position, the rock breaker can move forward at least three times, and break rocks at three positions of the riverbed along the length direction of the riverbed, thereby improving the working efficiency of rock breaking.

[0014] Furthermore, a limit plate extending outward is formed on the outer side of the track, and a limit groove buckled on the limit plate is formed on the mounting frame, and the limit groove is in sliding contact with the limit plate. By using the cooperation between the limit plate and the limit groove, when the floating boat is shaking, the mounting frame can keep in line with the shaking of the floating boat, so as to prevent the mounting frame from falling off the guide rail.

[0015] After adopting the above structure, the invention relates to an underwater riverbed rock breaking equipment. Compared with the prior art, the present invention arranges a first hydraulic cylinder in the mounting sleeve, and uses the first hydraulic cylinder to drive the lifting sleeve downward to make the cutter disc contact the hard rock layer of the riverbed, and then drives the cutter disc to rotate through the driving mechanism, so as to break the hard rock layer. Since there is a universal connection between the mounting sleeve and the mounting frame, the mounting sleeve can adapt to the multi-angle connection between the mounting sleeve and the mounting frame. When the floating vessel is shaking, the mounting sleeve can always remain vertically downward, thereby avoiding misalignment of the cutter disc and the crushing position, so that the cutter disc can always remain in the crushing position to work, thereby improving the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further illustrated by means of non-limiting examples given in the accompanying drawings;

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 Figure 1 A cross-sectional schematic diagram of

[0019] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 4 for Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0021] Figure 5 for Figure 2A schematic diagram of the local enlarged structure at C in the middle;

[0022] Figure 6 It is a schematic diagram of the structure of the installation sleeve in the present invention;

[0023] Figure 7 It is a structural schematic diagram of the lifting sleeve in the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the buffer sleeve in the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the cutter disc in the present invention.

[0026] The symbols of the main components are explained as follows: floating boat 1, through groove 11, track 12, limit plate 121, mounting frame 2, driving wheel 21, limit groove 22, mounting sleeve 3, first hydraulic cylinder 31, first limit slide groove 32, inner sphere 33, lifting sleeve 4, first limit slide block 41, annular cavity 42, second limit slide groove 421, cutter disc 5, crushing part 51, chip groove 511, rotating shaft 52, inner gear ring 522, annular groove 521, driving mechanism 6, driving gear 61, driving motor 62, buffer sleeve 7, second limit slide block 71, mounting plate 72, rotating ring 73, buffer spring 8, outer spherical shell 9, bearing plate 91, second hydraulic cylinder 10. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions of the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0028] like Figures 1 to 9As shown, an underwater riverbed rock breaking device involved in the present invention comprises a floating vessel 1 and a rock breaker installed on the floating vessel 1, the rock breaker comprises a mounting frame 2 arranged on the floating vessel 1, a mounting sleeve 3 movably connected to the mounting frame 2, a lifting sleeve 4 slidably installed in the mounting sleeve 3 and a cutter head 5 rotatably connected to the bottom end of the lifting sleeve 4. In order to improve the efficiency of rock breaking and avoid frequent movement of the floating vessel 1, the mounting frame 2 is movably arranged on the floating vessel 1. Specifically, a through groove 11 for the mounting sleeve 3 to pass through is formed on the floating vessel 1, the length of the through groove 11 is at least three times the width of the through groove 11, and the width of the through groove 11 is at least twice the diameter of the mounting sleeve 3; the floating vessel 1 is also provided with a track 12 for the mounting frame 2 to move, the track 12 is located on both sides of the through groove 11, and the bottom of the mounting frame 2 is provided with a driving wheel 21 that can move along the track 12. The mounting frame 2 is movably mounted on the floating boat 1, and the length of the through slot 11 is at least three times the width of the through slot 11, so that when the floating boat 1 is kept in one position, the rock breaker can move forward at least three times, and break rocks at three positions of the riverbed along the length direction of the riverbed, thereby improving the working efficiency of rock breaking, and the width of the through slot 11 is twice the width of the mounting sleeve 3, so that when the floating boat 1 is shaking, it can provide enough space for the mounting sleeve 3 to make way. In addition, in order to ensure that the mounting frame 2 and the floating boat 1 can be consistent when the floating boat 1 is shaking, and to prevent the mounting frame 2 from leaving the track 12, an outwardly extending limit plate 121 is formed on the outer side of the track 12, and the length of the limit plate 121 is consistent with the length of the track 12, and a limit groove 22 is formed on the mounting frame 2, which is buckled on the limit plate 121, and the outer end of the limit plate 121 is stuck in the limit groove 22, and the limit groove 22 is in sliding contact with the limit plate 121. In order to make the cutter disc 5 rotate quickly, a driving mechanism 6 for driving the cutter disc 5 to rotate is also provided in the lifting sleeve 4; in order to make the mounting sleeve 3 always maintain a vertical state and avoid the cutter disc 5 from being misaligned with the crushing position, a universal connection is provided between the mounting frame 2 and the mounting sleeve 3, so that the mounting sleeve 3 can adapt to multi-angle connection with the mounting frame 2, and when the floating vessel 1 is shaking, the mounting sleeve 3 can always maintain a vertical direction. In actual use, in order for the cutter disc 5 to be able to crush normally, the cutter disc 5 needs to apply a certain pressure on the rock formation. Therefore, a plurality of first hydraulic cylinders for driving the lifting sleeve 4 to slide up and down are provided in the mounting sleeve 3. The plurality of first hydraulic cylinders are arranged in a circular array along the axis of the lifting sleeve 4. The cylinder body of the first hydraulic cylinder is solidly connected to the inner wall of the mounting sleeve 3, and the piston rod of the first hydraulic cylinder is fixedly connected to the top of the lifting sleeve 4. The lifting sleeve 4 can be pushed downward by the first hydraulic cylinder, so that the cutter disc 5 is pressed on the rock formation. A plurality of vertically arranged first limit grooves 32 are formed on the inner wall of the mounting sleeve 3, and a first limit sliding block 41 cooperating with the first limit groove 32 is provided on the outer wall of the lifting sleeve 4.By utilizing the cooperation between the first limiting sliding groove 32 and the first limiting sliding block 41 , not only can the lifting sleeve 4 be made more stable when moving up and down, but also relative rotation between the lifting sleeve 4 and the mounting sleeve 3 can be avoided.

[0029] In this embodiment, in order to adapt to the large-scale shaking of the floating vessel 1 and prevent the cutter head 5 from directly separating from the rock formation, a buffer sleeve 7 is also provided on the lifting sleeve 4; an annular cavity 42 is formed on the wall of the lifting sleeve 4, and the annular cavity 42 is coaxially arranged with the buffer sleeve 7; the buffer sleeve 7 is slidably connected in the annular cavity 42; a plurality of buffer springs 8 are also provided in the annular cavity 42, and the top end of the buffer spring 8 is fixedly connected to the inner top wall of the annular cavity 42, and the bottom end is fixedly connected to the top of the buffer sleeve 7. When in use, after the lifting sleeve 4 makes the cutter disc 5 contact with the rock formation when moving downward, the lifting sleeve 4 continues to move downward to compress the buffer spring 8 until the pressure exerted by the cutter disc 5 on the rock formation is sufficient to break the rock formation and make the cutter disc 5 in flexible contact with the rock formation. When the pontoon 1 shakes greatly, the buffer spring 8 will deform. For example, when the pontoon 1 moves upward, the buffer spring 8 expands, and when the pontoon 1 moves downward, the buffer spring 8 is compressed. This not only keeps the installation sleeve 3 in a vertical state at all times and keeps the cutter disc 5 in contact with the rock formation at all times, but also better protects the cutter disc 5 and avoids damage to the cutter disc 5.

[0030] In this embodiment, a plurality of vertically arranged second limiting grooves 421 are formed on the inner wall of the annular cavity 42, and a second limiting slider 71 slidably matched with the second limiting grooves 421 is formed on the outer wall of the buffer sleeve 7. The cooperation between the second limiting grooves 421 and the second limiting slider 71 can make the up and down sliding of the lifting buffer sleeve 7 more stable, and can prevent the buffer sleeve 7 and the lifting sleeve 4 from rotating relative to each other.

[0031] In this embodiment, the cutter disc 5 is rotatably mounted at the lower part of the buffer sleeve 7; a mounting plate 72 for mounting the driving mechanism 6 is provided in the buffer sleeve 7, and the cutter disc 5 is located at the lower part of the mounting plate 72; the cutter disc 5 comprises a crushing part 51 at the bottom of the buffer sleeve 7 and a rotating shaft 52 rotatably connected to the buffer sleeve 7, an annular groove 521 is formed on the outer wall of the rotating shaft 52, and a rotating ring 73 rotatably matched with the annular groove 521 is formed on the inner wall of the buffer sleeve 7. The mounting of the cutter disc 5 can be more stable by using the matching of the annular groove 521 of the rotating ring 73. In order to make the cutter disc 5 rotate more smoothly, a plurality of balls can be arranged in the annular groove 521 or a bearing can be arranged between the annular groove 521 and the rotating ring 73. In addition, in order to facilitate the discharge of the crushed stone chips, a plurality of chip removal grooves 511 arranged in an annular array are formed at the edge of the crushing part 51. The chip removal grooves 511 are spiral-shaped. When the cutter disc 5 rotates, the stone chips can be discharged through the chip removal grooves 511 while crushing.

[0032] In this embodiment, in order to improve the transmission efficiency, an inner gear ring 522 is provided on the top of the rotating shaft 52, and the inner gear ring 522 is coaxially arranged with the ring punch sleeve; the driving mechanism 6 includes a driving gear 61 meshing with the inner gear ring 522 and a driving motor 62; the driving gear 61 is rotatably mounted on the mounting plate 72, and the driving motor 62 is fixedly mounted on the mounting plate 72. Specifically, in order to save space, the driving gear 61 is a bevel gear; specifically, the driving mechanism 6 has four groups, and the four groups of driving mechanisms 6 are arranged in a ring array. The torque can be increased by multiple groups of driving mechanisms 6, and it is easier to crush the hard rock formation.

[0033] In this embodiment, an outer spherical shell 9 is provided on the mounting frame 2, and an inner sphere 33 that slides with the outer spherical shell 9 is provided on the top of the mounting sleeve 3; by using the cooperation between the inner sphere 33 and the outer spherical shell 9, a universal connection between the mounting frame 2 and the mounting sleeve 3 can be realized, so that the mounting sleeve 3 can adapt to the multi-angle connection with the mounting frame 2, and a bearing plate 91 is formed by extending outward from the bottom edge of the outer spherical shell 9, and a second hydraulic cylinder 10 is fixedly installed on the top of the mounting frame 2, and the piston rod of the second hydraulic cylinder 10 is fixedly connected to the top of the bearing plate 91. The second hydraulic cylinder 10 can be used to make the mounting sleeve 3 rise and fall, which can not only adapt to a deeper riverbed, but also move the mounting sleeve 3 upward when it is not applicable. Keep the cutter head 5 as far away from the riverbed as possible to avoid collision with the riverbed during movement.

[0034] The method of using the present invention is as follows: first, the floating boat 1 is moved to the position where rock breaking is required, and then the lifting sleeve 4 is driven downward by the first hydraulic cylinder to make the cutter head 5 contact the rock layer on the riverbed, and after the contact, the lifting sleeve 4 is continued to be driven downward to compress the buffer spring 8 until there is sufficient pressure between the cutter head 5 and the rock layer (if the water is deeper, the installation sleeve 3 can also be driven by the second hydraulic cylinder 10 to continue to dive), and then the cutter head 5 is driven to rotate under the action of the driving mechanism 6 to start rock breaking. When the wind and waves are large, the floating boat 1 shakes. Since the installation sleeve 3 and the installation frame 2 are universally connected, and under the action of the buffer spring 8, the installation sleeve 3 can always be kept in a vertical state, and the cutter head 5 can always be kept in contact with the rock layer, thereby improving the crushing efficiency.

[0035] The above is a detailed introduction to an underwater riverbed rock breaking device provided by the present invention. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An underwater riverbed rock breaking device, comprising a floating vessel (1) and a rock breaker installed on the floating vessel (1), characterized in that: The rock breaker comprises a mounting frame (2) arranged on a floating vessel (1), a mounting sleeve (3) movably connected to the mounting frame (2), a lifting sleeve (4) slidably mounted in the mounting sleeve (3), and a cutter head (5) rotatably connected to the bottom end of the lifting sleeve (4); a driving mechanism (6) for driving the cutter head (5) to rotate is also arranged in the lifting sleeve (4); the mounting frame (2) and the mounting sleeve (3) are universally connected; a plurality of first hydraulic cylinders (31) for driving the lifting sleeve (4) to slide up and down are arranged in the mounting sleeve (3), the cylinder body of the first hydraulic cylinder (31) is solidly connected to the inner wall of the mounting sleeve (3), and the piston rod of the first hydraulic cylinder (31) is fixedly connected to the top of the lifting sleeve (4); a plurality of vertically arranged first limiting sliding grooves (32) are formed on the inner wall of the mounting sleeve (3), and a first limiting sliding block (41) cooperating with the first limiting sliding groove (32) is arranged on the outer wall of the lifting sleeve (4).

2. The underwater riverbed rock breaking device according to claim 1, characterized in that: A buffer sleeve (7) is also provided on the lifting sleeve (4); an annular cavity (42) is formed on the wall of the lifting sleeve (4), and the annular cavity (42) is coaxial with the buffer sleeve (7); the buffer sleeve (7) is slidably connected in the annular cavity (42); a plurality of buffer springs (8) are also provided in the annular cavity (42), and the top end of the buffer spring (8) is fixedly connected to the inner top wall of the annular cavity (42), and the bottom end is fixedly connected to the top of the buffer sleeve (7).

3. The underwater riverbed rock breaking device according to claim 2, characterized in that: A plurality of vertically arranged second limiting sliding grooves (421) are formed on the inner wall of the annular cavity (42), and a second limiting sliding block (71) slidably matched with the second limiting sliding grooves (421) is formed on the outer wall of the buffer sleeve (7).

4. The underwater riverbed rock breaking device according to claim 3, characterized in that: The cutter disc (5) is rotatably mounted at the bottom of the buffer sleeve (7); a mounting plate (72) for mounting the drive mechanism (6) is provided inside the buffer sleeve (7), and the cutter disc (5) is located at the bottom of the mounting plate (72); the cutter disc (5) comprises a crushing portion (51) located at the bottom of the buffer sleeve (7) and a rotating shaft (52) rotatably connected to the buffer sleeve (7), an annular groove (521) is formed on the outer wall of the rotating shaft (52), and a rotating ring (73) rotatably matched with the annular groove (521) is formed on the inner wall of the buffer sleeve (7).

5. The underwater riverbed rock breaking device according to claim 4, characterized in that: An inner gear ring (522) is provided at the top of the rotating shaft (52), and the inner gear ring (522) is coaxially arranged with the annular sleeve (7); the driving mechanism (6) comprises a driving gear (61) meshing with the inner gear ring (522) and a driving motor (62); the driving gear (61) is rotatably mounted on the mounting plate (72), and the driving motor (62) is fixedly mounted on the mounting plate (72).

6. The underwater riverbed rock breaking device according to claim 1, characterized in that: An outer spherical shell (9) is provided on the mounting frame (2), and an inner sphere (33) that is slidably matched with the outer spherical shell (9) is provided on the top of the mounting sleeve (3); the bottom edge of the outer spherical shell (9) extends outward to form a bearing plate (91), and a second hydraulic cylinder (10) is fixedly installed on the top of the mounting frame (2), and the piston rod of the second hydraulic cylinder (10) is fixedly connected to the top of the bearing plate (31).

7. The underwater riverbed rock breaking device according to claim 6, characterized in that: The mounting frame (2) is movably mounted on the floating boat (1); a through slot (11) is formed on the floating boat (1) for the mounting sleeve (3) to pass through; the length of the through slot (11) is at least three times the width of the through slot (11); the width of the through slot (11) is at least twice the diameter of the mounting sleeve (3); the floating boat (1) is also provided with a track (12) for the mounting frame (2) to move; the track (12) is located on both sides of the through slot (11); and a driving wheel (21) that can move along the track (12) is provided at the bottom of the mounting frame (2).

8. The underwater riverbed rock breaking device according to claim 7, characterized in that: A limiting plate (121) extending outward is formed on the outer side of the track (12), and a limiting groove (22) buckled on the limiting plate (121) is formed on the mounting frame (2), and the limiting groove (22) is in sliding contact with the limiting plate (121).

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