An underwater hard rock breaking device

Abstract

The application relates to the technical field of underwater hard rock breaking, and discloses an underwater hard rock breaking device, which comprises a ship body and a breaking mechanism arranged at the lower end of the ship body. The breaking mechanism comprises a lifting arm, a fixing frame fixedly arranged at one end of the lifting arm, two first rollers and a second roller, a plurality of breaking teeth are arranged on the two first rollers and the second roller, the lifting arm is arranged at the lower end of the ship body, the fixing frame comprises a fixing horizontal plate and two symmetrical supporting plates fixedly arranged at the two ends of the fixing horizontal plate, the two first rollers are rotatably arranged on the two supporting plates, and the second roller is rotatably arranged between the two first rollers. The underwater rock breaking device has the advantages that the ship body is prone to shaking and tilting due to the reaction force of the rock or the impact force of the device when the underwater rock breaking work is carried out, the shaking and tilting not only reduce the work efficiency, but also increase the work risk, and the problem that the ship body structure and the safety of the work personnel are threatened.

Description

Technical Field

[0001] This invention belongs to the field of underwater hard rock crushing technology, and specifically relates to an underwater hard rock crushing device. Background Technology

[0002] In the field of underwater rock crushing, drum-type underwater rock crushers are widely used due to their continuous operation capability and high crushing efficiency. These devices typically consist of one or more drums equipped with carbide or steel crushing teeth that crush underwater rocks through rotation.

[0003] Although drum-type underwater rock crushers have certain advantages in underwater rock breaking, some technical problems exist in actual operation. The most significant issue is that during underwater rock breaking, the hull is prone to rolling and tilting due to the reaction force of the rock or the impact force applied by the equipment. This rolling and tilting not only reduces operational efficiency but also increases operational risks, threatening the safety of the hull structure and personnel. Therefore, we propose an underwater hard rock crushing device to address these problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing drum-type underwater rock breaking equipment is prone to swaying and tilting during underwater rock breaking operations due to the reaction force of the rock or the impact force applied by the equipment. This swaying and tilting not only reduces the efficiency of operation but also increases the risk of operation, posing a threat to the safety of the hull structure and the operators.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] An underwater hard rock crushing device includes a hull and a crushing mechanism disposed at the lower end of the hull. The crushing mechanism includes a lifting arm, a fixed frame fixedly installed at one end of the lifting arm, two first rollers and one second roller. Each of the two first rollers and the second roller is provided with a plurality of crushing teeth. The lifting arm is disposed at the lower end of the hull. The fixed frame includes a fixed horizontal plate and two support plates symmetrically fixedly installed at both ends of the fixed horizontal plate. The two first rollers are rotatably mounted on the two support plates, and the second roller is rotatably mounted between the two first rollers. The rotation direction of the second roller is opposite to that of the two first rollers. The fixed horizontal plate and the support plates have mounting cavities inside. The ends of the two first rollers are fixedly mounted with first transmission wheels. A rotating shaft is rotatably mounted inside the fixed horizontal plate. The two ends of the rotating shaft are fixedly mounted with second transmission wheels. A first belt is sleeved between the first transmission wheels and the second transmission wheels. The first transmission wheels, the second transmission wheels and the first belt are all disposed in the mounting cavities. A first motor is fixedly mounted on the fixed horizontal plate. A third transmission wheel is fixedly mounted on the output shaft of the first motor. A fourth transmission wheel is provided on the rotating shaft. The third transmission wheel and the fourth transmission wheel are sleeved with second belts.

[0007] Further specified, a reversing component is provided between the two first rollers and the second roller. The reversing component includes a fixed frame, two first bevel gears, a second bevel gear, and a third bevel gear. Both ends of the second roller have cylindrical grooves, and the fixed frame is disposed within these grooves. The two first bevel gears are symmetrically and rotatably mounted within the fixed frame. The second and third bevel gears are also symmetrically and rotatably mounted within the fixed frame and mesh with the two first bevel gears. A first fixed post and a second fixed post are fixedly mounted at the ends of the two first rollers and the second roller that are close to each other. The first and second fixed posts are respectively fixedly connected to the second and third bevel gears. With this structural design, the second bevel gear, in cooperation with the first bevel gears and the fixed frame, can drive the third bevel gear to rotate in the opposite direction, thereby driving the second roller to rotate in the opposite direction to the two first rollers.

[0008] Furthermore, a fixing rod is fixedly installed between the two support plates. The fixing rod passes through the two first rollers and one second roller, and is rotatably connected to the first and second rollers via bearings. A connecting frame is fixedly installed on the fixing rod, and the connecting frame is fixedly connected to the fixing frame. This structural design allows the fixing rod, in conjunction with the bearings, to position the first and second rollers without affecting their rotation.

[0009] Furthermore, the fixed cross plate is equipped with a protective cover over the third drive wheel and the second belt. This structural design allows the protective cover to enclose the third drive wheel and the second belt, preventing damage to them from impacts by gravel.

[0010] Furthermore, the hull is symmetrically equipped with four sets of support mechanisms to provide stable support. Each support mechanism includes a positioning seat and a support column. A limiting opening is provided on the hull. The positioning seat is fixedly installed on the hull and located at the limiting opening. The positioning seat has an opening of the same size as the limiting opening. The support column is movably installed within the opening and the limiting opening. The positioning seat is equipped with a drive component that can drive the support column to move vertically up and down. This structural design is simple and easy to use.

[0011] Further specifying, the drive assembly includes a second motor, a worm gear, a drive gear, and a worm wheel adapted to the worm gear. The second motor is fixedly mounted on a positioning seat, which has a groove. The worm gear is rotatably mounted in the groove and is fixedly connected to the output shaft of the second motor. A third fixed column is fixedly mounted on the positioning seat, and the drive gear is rotatably mounted on the third fixed column. The support column has fixed teeth that mesh with the drive gear, and the worm wheel is fixedly mounted on the end of the drive gear. With this structural design, when the second motor is working, it can drive the worm wheel and the drive gear to rotate, thereby causing the support column to move up and down. Furthermore, the worm gear and worm wheel have a locking effect on the support column, providing stable support.

[0012] Furthermore, an adapter end is fixedly installed at the lower end of the support column, and a roller is rotatably installed on the adapter end. This structural design allows the roller to move downwards along with the support column, lowering the ship's center of gravity and ensuring the ship remains stably on the water.

[0013] Furthermore, the contact rollers are equipped with several anti-slip protrusions, and tracks are fitted onto two contact rollers on the same side. The inner side of the tracks is provided with anti-slip grooves that are adapted to the anti-slip protrusions. This structural design allows the rollers to drive the tracks, facilitating the movement of the vessel when the tracks are in contact with the riverbed.

[0014] Further specifying, the lifting arm includes a first connecting arm, a second connecting arm, and a hydraulic cylinder. The first connecting arm is rotatably mounted on the lower end of the hull, and the second connecting arm is rotatably connected to the lower end of the first connecting arm. Both the first and second connecting arms are provided with connecting columns, and the hydraulic cylinder is rotatably mounted between the connecting columns of the first and second connecting arms. This structural design is simple and easy to use.

[0015] The invention employing the above technical solution has the following advantages:

[0016] In this invention, the lifting arm can bring the first and second rollers close to the underwater rocks. The first motor, in conjunction with multiple transmission wheels, the first belt and the second belt, can drive the first and second rollers to rotate, thus breaking the underwater hard rocks. The first and second rollers rotate in opposite directions, so the reaction forces on the first and second rollers will partially cancel each other out when breaking the hard rocks, thereby reducing the impact force on the hull.

[0017] In this invention, the second motor drives the worm gear to rotate, which in turn drives the worm wheel and drive gear to rotate, so that the support column moves vertically up and down under the positioning action of the positioning seat until the roller and track contact the underwater riverbed. This can lower the center of gravity of the hull, so as to provide stable support for the hull. Moreover, the track setting facilitates the movement of the hull within a small range, improving the efficiency and stability of hard rock crushing work. Attached Figure Description

[0018] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0019] Figure 1 This is a schematic diagram of the structure of an underwater hard rock crushing device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the crushing mechanism in an underwater hard rock crushing device according to the present invention;

[0021] Figure 3 This is a partial structural diagram of the crushing mechanism in an underwater hard rock crushing device according to the present invention;

[0022] Figure 4 This is a cross-sectional structural diagram of the first and second drum sections in an underwater hard rock crushing device according to the present invention.

[0023] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0024] Figure 6 This is a schematic diagram of the fixed frame portion in an underwater hard rock crushing device according to the present invention;

[0025] Figure 7 This is a schematic diagram of the support mechanism in an underwater hard rock crushing device according to the present invention.

[0026] Figure 8 for Figure 7 A magnified structural diagram at point B in the middle.

[0027] The symbols for the main components are explained below:

[0028] 1. Hull;

[0029] 2. Crushing mechanism; 21. Lifting arm;

[0030] 22. Fixing frame; 221. Fixing cross plate; 222. Support plate; 223. Rotating shaft; 224. First belt; 225. First motor; 226. Second belt; 227. Protective cover;

[0031] 23. First roller;

[0032] 24. Second roller; 241. Cylindrical groove;

[0033] 3. Fixed frame; 31. First bevel gear; 32. Second bevel gear; 33. Third bevel gear;

[0034] 34. Fixing rod; 341. Connecting bracket;

[0035] 4. Support mechanism; 41. Positioning seat;

[0036] 42. Support column; 421. Adapter end; 422. Roller; 423. Track;

[0037] 5. Second motor; 51. Worm gear; 52. Drive gear; 53. Worm wheel. Detailed Implementation

[0038] 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. Furthermore, 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.

[0039] like Figures 1 to 8As shown, an underwater hard rock crushing device of the present invention includes a hull 1 and a crushing mechanism 2 disposed at the lower end of the hull 1. The crushing mechanism 2 includes a lifting arm 21, a fixing frame 22 fixedly installed at one end of the lifting arm 21, two first rollers 23 and one second roller 24. The lifting arm 21 includes a first connecting arm, a second connecting arm and a hydraulic cylinder. The first connecting arm is rotatably installed at the lower end of the hull 1, and the second connecting arm is rotatably connected to the lower end of the first connecting arm. Both the first and second connecting arms are provided with connecting columns. The hydraulic cylinder is rotatably installed between the connecting columns of the first and second connecting arms. Both the two first rollers 23 and the second roller 24 are provided with a plurality of crushing teeth. The plurality of crushing teeth are distributed in a cross pattern along the outer side of the first rollers 23 and the second roller 24. The lifting arm 21 is disposed at the lower end of the hull 1. The fixing frame 22 includes a fixing horizontal plate 221 and two support plates 222 symmetrically fixedly installed at both ends of the fixing horizontal plate 221. The two first rollers 23 are rotatably installed on the two support plates 222, and the second roller 24 is rotatably installed on the two support plates 222. Between the first rollers 23, the rotation direction of the second roller 24 is opposite to that of the two first rollers 23. The fixed horizontal plate 221 and the support plate 222 have an installation cavity inside. The ends of the two first rollers 23 are fixedly installed with first transmission wheels. A rotating shaft 223 is rotatably installed inside the fixed horizontal plate 221. The two ends of the rotating shaft 223 are fixedly installed with second transmission wheels. A first belt 224 is sleeved between the first transmission wheel and the second transmission wheel. The first transmission wheel, the second transmission wheel and the first belt 224 are all set in the installation cavity. A first motor 225 is fixedly installed on the fixed horizontal plate 221. A third transmission wheel is fixedly installed on the output shaft of the first motor 225. A fourth transmission wheel is provided on the rotating shaft 223. A second belt 226 is sleeved on the third transmission wheel and the fourth transmission wheel. A protective cover 227 is provided on the fixed horizontal plate 221 to cover the third transmission wheel and the second belt 226. The protective cover 227 can cover the third transmission wheel and the second belt 226 and can prevent the collision of gravel from damaging the third transmission wheel and the second belt 226.

[0040] A reversing component is provided between the two first rollers 23 and the second roller 24. The reversing component includes a fixed frame 3, two first bevel gears 31, a second bevel gear 32, and a third bevel gear 33. Both ends of the second roller 24 are provided with cylindrical grooves 241. The fixed frame 3 is set in the cylindrical grooves 241. The two first bevel gears 31 are symmetrically rotated and installed in the fixed frame 3. The second bevel gears 32 and the third bevel gears 33 are symmetrically rotated and installed in the fixed frame 3 and mesh with the two first bevel gears 31. The two first rollers 23 and the second roller 24 are respectively fixedly installed at their close ends. The first fixed column and the second fixed column are respectively fixedly connected to the second bevel gear 32 and the third bevel gear 33. A fixed rod 34 is fixedly installed between the two support plates 222. The fixed rod 34 passes through the two first rollers 23 and the second roller 24 and is rotatably connected to the first rollers 23 and the second roller 24 through bearings. A connecting frame 341 is fixedly installed on the fixed rod 34 and is fixedly connected to the fixed frame 3.

[0041] Four sets of support mechanisms 4 are symmetrically arranged on the hull 1 to provide stable support for the hull 1. The support mechanism 4 includes a positioning seat 41 and a support column 42. A limit opening is opened on the hull 1. The positioning seat 41 is fixedly installed on the hull 1 and is located at the limit opening. The positioning seat 41 has an opening with the same size as the limit opening. The support column 42 is movably installed in the opening and the limit opening. The positioning seat 41 is provided with a drive component that can drive the support column 42 to move vertically up and down. The lower end of the support column 42 is fixedly installed with a connecting end 421. A roller 422 is rotatably installed on the connecting end 421. The connecting end 421 is provided with a drive motor that is compatible with the roller 422 and can drive the roller 422 and the track 423 to work. The roller 422 is provided with several anti-slip protrusions. The track 423 is fitted on two contact rollers 422 located on the same side. The inner side of the track 423 is provided with anti-slip grooves that are compatible with the anti-slip protrusions.

[0042] The drive assembly includes a second motor 5, a worm gear 51, a drive gear 52, and a worm wheel 53 adapted to the worm gear 51. The second motor 5 is fixedly mounted on a positioning seat 41, which has a groove. The worm gear 51 is rotatably mounted in the groove and is fixedly connected to the output shaft of the second motor 5. A third fixed column is fixedly mounted on the positioning seat 41, and the drive gear 52 is rotatably mounted on the third fixed column. The support column 42 has fixed teeth that mesh with the drive gear 52. The worm wheel 53 is fixedly mounted on the end of the drive gear 52. The worm gear 51, in conjunction with the worm wheel 53, can drive the support column 42 to move vertically up and down through the drive gear 52. The worm gear 51 also has a locking effect on the worm wheel 53, which can keep the support column 42 in a locked state, so as to provide stable support when the roller 422 contacts the riverbed.

[0043] The method of using this invention is as follows:

[0044] When in use, the hull 1 sails above the construction water surface, the second motor 5 works, and the output shaft drives the worm 51 to rotate, causing the worm wheel 53 and the drive gear 52 to rotate. This allows the support column 42 to move vertically downward under the limiting action of the positioning seat 41 until the roller 422 and the track 423 contact the riverbed. This lowers the center of gravity of the hull 1, providing stable support for the hull 1. Furthermore, when the track 423 moves on the riverbed, it is easy to adjust the position of the hull 1 within a small range, thus improving work efficiency.

[0045] When the lifting arm 21 is in operation, it can bring the fixed frame 22, the first roller 23, and the second roller 24 to contact the underwater hard rock. The first motor 225 is in operation, which drives the fourth transmission wheel and the rotating shaft 223 to rotate through the third transmission wheel and the second belt 226. The rotating shaft 223, in conjunction with the first transmission wheel, the first belt 224, and the second transmission wheel, drives the two first rollers 23 to rotate. The second bevel gear 32 at the end of the first roller 23 rotates in the fixed frame 3. Driven by the first bevel gear 31, it drives the third bevel gear 33 to rotate in the opposite direction, thereby driving the second roller 24 to rotate in the opposite direction to the first roller 23. When the first roller 23 and the second roller 24 rotate to break the underwater hard rock, the forces acting on the first roller 23 and the second roller 24 are in opposite directions, which can offset part of the impact force generated during breaking, reduce the swaying and tilting of the hull 1, and improve the efficiency of underwater hard rock breaking operations.

[0046] The above provides a detailed description of an underwater hard rock crushing 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. An underwater hard rock crushing device, comprising a hull (1) and a crushing mechanism (2) disposed at the lower end of the hull (1), characterized in that: The crushing mechanism (2) includes a lifting arm (21), a fixed frame (22) fixedly installed at one end of the lifting arm (21), two first rollers (23) and one second roller (24). Each of the two first rollers (23) and the second roller (24) is provided with several crushing teeth. The lifting arm (21) is located at the lower end of the hull (1). The fixed frame (22) includes a fixed horizontal plate (221) and two support plates (222) symmetrically fixed at both ends of the fixed horizontal plate (221). The two first rollers (23) are rotatably mounted on the two support plates (222). The second roller (23)... 4) Rotatably mounted between two first rollers (23), the second roller (24) rotates in the opposite direction to the rotation of the two first rollers (23). The fixed horizontal plate (221) and support plate (222) have internal mounting cavities. First transmission wheels are fixedly mounted at the ends of the two first rollers (23). A rotating shaft (223) is rotatably mounted inside the fixed horizontal plate (221). Second transmission wheels are fixedly mounted at both ends of the rotating shaft (223). A first belt (224) is fitted between the first and second transmission wheels. The first transmission wheel, the second transmission wheel, and the first… All belts (224) are installed in the mounting cavity. A first motor (225) is fixedly installed on the fixed cross plate (221). A third transmission wheel is fixedly installed on the output shaft of the first motor (225). A fourth transmission wheel is provided on the rotating shaft (223). A second belt (226) is sleeved on the third and fourth transmission wheels. A reversing component is provided between the two first rollers (23) and the second roller (24). The reversing component includes a fixed frame (3), two first bevel gears (31), a second bevel gear (32), and a third bevel gear (33). The second roller (24) Both ends are provided with cylindrical grooves (241). The fixed frame (3) is set in the cylindrical grooves (241). Two first bevel gears (31) are symmetrically rotated and installed in the fixed frame (3). The second bevel gear (32) and the third bevel gear (33) are symmetrically rotated and installed in the fixed frame (3) and mesh with the two first bevel gears (31). The two first rollers (23) and the second roller (24) are respectively fixedly installed with a first fixed post and a second fixed post at their respective ends that are close to each other. The first fixed post and the second fixed post are respectively fixedly connected to the second bevel gear (32) and the third bevel gear (33).

2. The underwater hard rock crushing device according to claim 1, characterized in that: A fixing rod (34) is fixedly installed between the two support plates (222). The fixing rod (34) passes through the two first rollers (23) and a second roller (24), and is rotatably connected to the first roller (23) and the second roller (24) through bearings. A connecting frame (341) is fixedly installed on the fixing rod (34), and the connecting frame (341) is fixedly connected to the fixing frame (3).

3. The underwater hard rock crushing device according to claim 1, characterized in that: A protective cover (227) is provided on the fixed cross plate (221) over the third transmission wheel and the second belt (226).

4. The underwater hard rock crushing device according to claim 1, characterized in that: The hull (1) is symmetrically provided with four sets of support mechanisms (4) that can provide stable support for the hull (1). The support mechanism (4) includes a positioning seat (41) and a support column (42). A limit opening is opened on the hull (1). The positioning seat (41) is fixedly installed on the hull (1) and the positioning seat (41) is located at the limit opening. The positioning seat (41) is provided with an opening that is consistent with the size of the limit opening. The support column (42) is movably installed in the opening and the limit opening. The positioning seat (41) is provided with a drive component that can drive the support column (42) to move vertically up and down.

5. The underwater hard rock crushing device according to claim 4, characterized in that: The drive assembly includes a second motor (5), a worm (51), a drive gear (52), and a worm wheel (53) adapted to the worm (51). The second motor (5) is fixedly mounted on a positioning seat (41). The positioning seat (41) has a groove. The worm (51) is rotatably mounted in the groove. The worm (51) is fixedly connected to the output shaft of the second motor (5). A third fixing column is fixedly mounted on the positioning seat (41). The drive gear (52) is rotatably mounted on the third fixing column. The support column (42) has fixed teeth that mesh with the drive gear (52). The worm wheel (53) is fixedly mounted on the end of the drive gear (52).

6. The underwater hard rock crushing device according to claim 4, characterized in that: The lower end of the support column (42) is fixedly installed with an adapter end (421), and a roller (422) is rotatably installed on the adapter end (421).

7. The underwater hard rock crushing device according to claim 6, characterized in that: The roller (422) is provided with a number of anti-slip protrusions, and the two rollers (422) on the same side are fitted with tracks (423). The inner side of the tracks (423) is provided with anti-slip grooves that are compatible with the anti-slip protrusions.

8. The underwater hard rock crushing device according to claim 1, characterized in that: The lifting arm (21) includes a first connecting arm, a second connecting arm and a hydraulic cylinder. The first connecting arm is rotatably mounted on the lower end of the hull (1), and the second connecting arm is rotatably connected to the lower end of the first connecting arm. Both the first and second connecting arms are provided with connecting columns, and the hydraulic cylinder is rotatably mounted between the connecting columns of the first and second connecting arms.

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