Stone breaking grab bucket and breaking and grabbing method thereof

Abstract

The stone breaking grab bucket comprises a grab bucket body, drilling machines and a splitting machine, a transverse moving mechanism is arranged on one side of the grab bucket body, a plurality of drilling machines which are driven by the transverse moving mechanism to transversely move and are connected into a whole side by side are arranged on the transverse moving mechanism, and a transverse moving mechanism is also arranged on the other side of the grab bucket body; the transverse moving mechanism is provided with a plurality of drilling machines and splitting machines which are driven by the transverse moving mechanism to transversely move side by side and connected into a whole, the number of the drilling machines and the splitting machines is the same, the drilling machines and the splitting machines are alternately arranged, and each drilling machine and each splitting machine are further provided with a lifting mechanism used for driving the drilling machines and the splitting machines to vertically ascend and descend. The invention further discloses a crushing and grabbing method of the stone crushing grab bucket. According to the large stone crushing and grabbing device, large stones can be drilled and split, the large stones are crushed and then grabbed through a grab bucket, and the problem that the large stones cannot be grabbed directly through the grab bucket is solved.

Description

Technical Field

[0001] This invention pertains to underwater rock crushing equipment, specifically relating to a rock-crushing grab bucket and its crushing and grabbing method. Background Technology

[0002] In the construction of coastal and inland waterways and wharves, underwater earthwork excavation inevitably encounters hard rock and soil. Currently, the commonly used methods are underwater blasting or underwater rock breaking with rock drills.

[0003] Underwater blasting is highly efficient, but it cannot meet increasingly stringent national environmental protection requirements. While underwater rock breaking with rock drills is more environmentally friendly, it requires pre-treating the rock in the work area with the drill before the fragments are collected, making it less efficient. Furthermore, rock breaking with rock drills relies on the impact of the falling drill, making it unsuitable for breaking rocks in deep water due to its limited depth. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a rock-breaking grab bucket and its crushing and grabbing method, which can efficiently crush and grab deep-water rocks while meeting environmental protection requirements.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] On one hand, a rock-breaking grab bucket includes a grab bucket body, as well as a drill and a splitter. A lateral movement mechanism is provided on one side of the grab bucket body, on which several drills are arranged side by side and connected as a whole and driven to move laterally. A lateral movement mechanism is also provided on the other side of the grab bucket body, on which several drills and splitters are arranged side by side and connected as a whole and driven to move laterally. The number of drills and splitters is the same and they are arranged alternately. Each drill and splitter also has a lifting mechanism for driving its vertical lifting and lowering.

[0007] The lateral movement mechanism includes a lateral movement track horizontally disposed on the side of the grab body, several lateral movement sliders disposed on the lateral movement track for connecting corresponding drilling machines and splitting machines, and a lateral movement cylinder connected to one of the drilling machines for driving the drilling machine or the drilling machine and the splitting machine to move horizontally as a whole.

[0008] The lifting mechanism of the drilling rig includes a vertically arranged primary lifting rail, a primary hydraulic cylinder, a secondary lifting rail, and a roller chain mechanism. The primary lifting rail is connected to a corresponding transverse sliding block. The primary hydraulic cylinder is used to drive the secondary lifting rail to move up and down along the primary lifting rail. The roller chain mechanism is used to drive the drilling rig to move up and down along the secondary lifting rail.

[0009] The lifting mechanism of the splitting machine includes a vertically arranged primary lifting track, a primary hydraulic cylinder, a secondary lifting track, and a secondary hydraulic cylinder. The primary lifting track is connected to a corresponding transverse slider. The primary hydraulic cylinder is used to drive the secondary lifting track to move up and down along the primary lifting track, and the secondary hydraulic cylinder is used to drive the splitting machine to move up and down along the secondary lifting track.

[0010] The lower end of the secondary lifting track also has a positioning head.

[0011] The grab bucket is a double-lobed electro-hydraulic grab bucket.

[0012] The drilling rig is a rock drill or a water-cooled drill.

[0013] On the other hand, a method for crushing and grabbing rocks using a rock-breaking grab bucket includes the following steps:

[0014] A. The grab bucket is lowered to a suitable position on the bottom of the water via a steel wire rope and then stops.

[0015] B. The two drilling rigs descend synchronously under the drive of their lifting mechanisms. When they come into contact with the surface of the rock, they start drilling at the same time. The drilling depth is greater than the depth into which the rock splitter enters.

[0016] C. After drilling is completed, the drilling rig on the side without the splitting machine is raised synchronously, while the drill bit of the drilling rig on the other side remains in the borehole for positioning.

[0017] D. The drilling rig, driven by the lateral movement mechanism, moves horizontally to the left or right by one hole position, continues to descend and drills again simultaneously. After drilling is completed, the drill bit of the drilling rig remains in the hole for positioning.

[0018] E. After the drilling rig with the splitter on the other side is raised synchronously, it is moved to the left or right by the lateral movement mechanism so that the splitter is aligned with the corresponding borehole.

[0019] F. Drive the rock splitter down so that its splitting rod enters the borehole to split the rock. At the same time, raise the drill rig on one side without a rock splitter to allow for the lateral movement of the rock as needed for splitting.

[0020] G. After the splitting is completed, drive the splitter to rise and drive the grab bucket to grab the broken stones formed by drilling and splitting through the above positioning.

[0021] The drilling rig is lowered by a primary hydraulic cylinder driving a secondary lifting track and the drilling rig along the primary lifting track until the positioning head contacts the surface of the rock; the drilling depth is controlled by a roller chain mechanism driving the drilling rig to descend along the secondary lifting track; the drilling rig is raised by first the roller chain mechanism driving the drilling rig to rise along the secondary lifting track, and then by the primary hydraulic cylinder driving the secondary lifting track and the drilling rig to rise.

[0022] The descent of the rock splitter is driven by a primary hydraulic cylinder along a secondary lifting track and the rock splitter descends along the primary lifting track until the positioning head contacts the surface of the rock. The rock splitter's splitting rod enters the borehole by a secondary hydraulic cylinder driving the rock splitter to descend along the secondary lifting track. The rock splitter rises by first being driven by a secondary hydraulic cylinder to rise along the secondary lifting track, and then being driven by a primary hydraulic cylinder to rise along the secondary lifting track and the rock splitter.

[0023] The present invention employs a rock-breaking grab bucket and its crushing and grabbing method. By adding a drill and splitting machine to the grab bucket, large rocks can be drilled and split, breaking them into smaller pieces before being grabbed by the grab bucket, thus solving the problem of the grab bucket being unable to grab them directly. The synchronous lateral movement of the drill can create a slit on one side of the rock, leaving room for the rock to move laterally when splitting on the other side. Seabed positioning via a single-stage lifting and positioning head, along with alternating drilling and positioning by the two drill bits, avoids the influence of ocean currents and ensures precise positioning of the drilling and splitting locations. Attached Figure Description

[0024] The invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0025] Figure 1 This is a perspective view of the rock-breaking grab bucket of the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of the rock-breaking grab bucket of the present invention from another perspective;

[0027] Figure 3 This is a schematic diagram of the drilling rig installation structure on one side of the grab bucket of the present invention;

[0028] Figure 4 For along Figure 3 Sectional view of line AA in the middle;

[0029] Figure 5 This is a schematic diagram of the installation structure of the drilling rig and splitter on the other side of the grab bucket of the present invention;

[0030] Figure 6 For along Figure 5 Sectional view of line AA in the middle;

[0031] Figure 7 This is a schematic diagram showing the drilling process of one side of the drilling rig descending to perform drilling according to the present invention.

[0032] Figure 8 This is a schematic diagram showing the splitting process as the splitter descends on the other side of the present invention.

[0033] Figure 9 This is a schematic diagram of the grab bucket of the present invention grabbing gravel. Detailed Implementation

[0034] A rock-breaking grab bucket of the present invention, such as Figures 1-6 As shown, it specifically includes a grab bucket body 1, as well as drill rigs 2 and rock splitters 3. This grab bucket is a double-lobed electro-hydraulic grab bucket. A lateral movement mechanism is provided on one side of the outer shell of the grab bucket body 1. Several equally spaced, parallel, and interconnected drill rigs 2 are mounted on the lateral movement mechanism and driven by it to perform lateral translation. Figure 2 The side shown has five drills 2, which are connected to each other by connecting rods 4. The other side of the grab body 1 is also provided with a lateral movement mechanism, which is equipped with several drills 2 and splitters 3 arranged side by side and connected as one unit, driven by the mechanism to make lateral translation. The number of drills 2 and splitters 3 is the same and they are arranged alternately with equal spacing. Figure 1 The diagram shows two drilling rigs 2 and two rock splitters 3 on one side, interconnected by a connecting rod 4. Each drilling rig 2 and rock splitter 3 also has a lifting mechanism for vertical movement. Thus, the five drilling rigs 2 on one side can move horizontally as a whole via a lateral movement mechanism. Similarly, the two drilling rigs 2 and rock splitters 3 on the other side can also move horizontally as a whole via their lateral movement mechanisms. Simultaneously, each drilling rig 2 and rock splitter 3 can be vertically raised and lowered via its lifting mechanism.

[0035] The aforementioned lateral movement mechanism may specifically include a lateral movement track 5 horizontally disposed on the side of the grab body 1, several lateral movement sliders 6 disposed on the lateral movement track 5 for connecting corresponding drills 2 and splitters 3, and a lateral movement cylinder 7 connected to one of the drills 2 for driving the drill 2 or the drill 2 and the splitter 3 to move horizontally as a whole. Through the extension and retraction control of the lateral movement cylinders 7 on both sides, five drills 2 or two drills 2 and two splitters 3 can be driven to move horizontally to the left and right respectively.

[0036] The lifting mechanism of the drilling rig 2 includes a vertically arranged primary lifting rail 8, a primary hydraulic cylinder 9, a secondary lifting rail 10, and a roller chain mechanism 11. The primary lifting rail 8 is connected to the corresponding transverse sliding block 6. The primary hydraulic cylinder 9 is used to drive the secondary lifting rail 10 to move up and down along the primary lifting rail 8. The roller chain mechanism 11 is used to drive the drilling rig 2 to move up and down along the secondary lifting rail 10.

[0037] The lifting mechanism of the splitting machine 3 includes a vertically arranged primary lifting track 8, a primary hydraulic cylinder 9, a secondary lifting track 10, and a secondary hydraulic cylinder 12. The primary lifting track 8 is connected to the corresponding transverse sliding block 6. The primary hydraulic cylinder 9 is used to drive the secondary lifting track 10 to move up and down along the primary lifting track 8. The secondary hydraulic cylinder 12 is used to drive the splitting machine 3 to move up and down along the secondary lifting track 10.

[0038] In addition, all secondary lifting tracks 10 have a positioning head 13 at their lower ends. When the primary hydraulic cylinder 9 drives the secondary lifting track 10 to descend until the positioning head 13 contacts the surface of the rock, it positions the secondary descent position to drive the drilling rig 2 and the rock splitter 3 to approach the seabed. Then, the secondary descent is performed.

[0039] Depending on the size of the grab bucket, different types of drilling rigs 2 can be matched for drilling holes in rocks, such as rock drills and water-cooled drills. The hydraulic cylinders of the drilling rig 2 and the rock splitter 3 can be supplied with oil using the electro-hydraulic system of the grab bucket.

[0040] The crushing and grabbing method of this rock-breaking grab bucket specifically includes the following steps:

[0041] A. Lower the grab bucket to a suitable position on the bottom of the water using a steel cable and stop.

[0042] B. The two drilling rigs 2 descend synchronously under the drive of their lifting mechanisms. When they come into contact with the surface of the rock, they start drilling at the same time. The drilling depth is greater than the depth into which the splitter 3 enters. Specifically, the first-stage hydraulic cylinder 9 drives the second-stage lifting rail 10 and the drilling rig 2 to descend along the first-stage lifting rail 8 until the positioning head 13 contacts the surface of the rock. Then, the roller chain mechanism 11 drives the drilling rig 2 to descend along the second-stage lifting rail 10 to drill. The drilling depth can be determined according to the construction process, but it must be greater than the depth into which the splitting rod 31 of the splitter 3 enters the drilling hole.

[0043] C. After drilling is completed, the drill rig 2 on the side without the splitter 3 is raised synchronously, while the drill bit 21 of the drill rig 2 on the other side remains in the borehole for positioning. The raising of the drill rig 2 is first driven by the roller chain mechanism 11 to rise along the secondary lifting track 10, and then driven by the primary hydraulic cylinder 9 to rise and reset the secondary lifting track 10 and the drill rig 2.

[0044] D. The drilling rig 2, driven by the lateral movement mechanism, moves horizontally to the left or right by one hole position, then continues to descend and drills again simultaneously, thus forming a row of continuous empty slots with the previous holes. After drilling is completed, all the drill bits 21 of the drilling rig 2 remain in the hole for positioning.

[0045] E. After the drill rig 2 with the splitter 3 on the other side is raised synchronously, it is moved to the left or right by the lateral movement mechanism so that the splitter 3 is aligned with the corresponding borehole.

[0046] F. Drive the rock splitter 3 to descend so that its splitting rod 31 enters the borehole to split the rock. At the same time, the drill rig 2 on one side without the rock splitter 3 is raised synchronously to allow the rock to move laterally as needed for splitting. The descent of the rock splitter 3 is driven by the first-stage hydraulic cylinder 9 to the second-stage lifting rail 10 and the rock splitter 3 to descend along the first-stage lifting rail 8 until the positioning head 13 contacts the surface of the rock. The splitting rod 31 of the rock splitter 3 enters the borehole by the second-stage hydraulic cylinder 12 driving the rock splitter 3 to descend along the second-stage lifting rail 10.

[0047] G. After the splitting is completed, drive the splitter 3 to rise, and then drive the grab bucket to grab the broken stones formed by drilling and splitting through the above positioning. Similarly, the splitter 3 is raised by first driving the splitter 3 along the secondary lifting track 10 by the secondary cylinder 12, and then driving the secondary lifting track 10 and the splitter 3 to rise and reset by the primary cylinder 9.

[0048] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Any changes or modifications to the above embodiments that are within the essential spirit of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A rock-breaking grab bucket, comprising a grab bucket body, characterized in that: It also includes drilling rigs and splitting machines. A lateral movement mechanism is provided on one side of the grab body, on which several drilling rigs are arranged side by side and connected together, driven by the lateral movement mechanism. A lateral movement mechanism is also provided on the other side of the grab body, on which several drilling rigs and splitting machines are arranged side by side and connected together, driven by the lateral movement mechanism. The number of drilling rigs and splitting machines is the same and they are arranged alternately. Each drilling rig and splitting machine also has a lifting mechanism for driving its vertical lifting and lowering.

2. The rock-breaking grab bucket according to claim 1, characterized in that: The lateral movement mechanism includes a lateral movement track horizontally disposed on the side of the grab body, several lateral movement sliders disposed on the lateral movement track for connecting corresponding drilling machines and splitting machines, and a lateral movement cylinder connected to one of the drilling machines for driving the drilling machine or the drilling machine and the splitting machine to move horizontally as a whole.

3. A rock-breaking grab bucket according to claim 2, characterized in that: The lifting mechanism of the drilling rig includes a vertically arranged primary lifting rail, a primary hydraulic cylinder, a secondary lifting rail, and a roller chain mechanism. The primary lifting rail is connected to a corresponding transverse sliding block. The primary hydraulic cylinder is used to drive the secondary lifting rail to move up and down along the primary lifting rail. The roller chain mechanism is used to drive the drilling rig to move up and down along the secondary lifting rail.

4. A rock-breaking grab bucket according to claim 2, characterized in that: The lifting mechanism of the splitting machine includes a vertically arranged primary lifting track, a primary hydraulic cylinder, a secondary lifting track, and a secondary hydraulic cylinder. The primary lifting track is connected to a corresponding transverse slider. The primary hydraulic cylinder is used to drive the secondary lifting track to move up and down along the primary lifting track, and the secondary hydraulic cylinder is used to drive the splitting machine to move up and down along the secondary lifting track.

5. A rock-breaking grab bucket according to claim 3 or 4, characterized in that: The lower end of the secondary lifting track also has a positioning head.

6. A rock-breaking grab bucket according to claim 1, characterized in that: The grab bucket is a double-lobed electro-hydraulic grab bucket.

7. A rock-breaking grab bucket according to claim 1, characterized in that: The drilling rig is a rock drill or a water-cooled drill.

8. A method for crushing and gripping rocks using a rock-breaking grab bucket according to any one of claims 1-7, characterized in that, Includes the following steps: A. The grab bucket is lowered to a suitable position on the bottom of the water via a steel wire rope and then stops. B. The two drilling rigs descend synchronously under the drive of their lifting mechanisms. When they come into contact with the surface of the rock, they start drilling at the same time. The drilling depth is greater than the depth into which the rock splitter enters. C. After drilling is completed, the drilling rig on the side without the splitting machine is raised synchronously, while the drill bit of the drilling rig on the other side remains in the borehole for positioning. D. The drilling rig, driven by the lateral movement mechanism, moves horizontally to the left or right by one hole position, continues to descend and drills again simultaneously. After drilling is completed, the drill bit of the drilling rig remains in the hole for positioning. E. After the drilling rig with the splitter on the other side is raised synchronously, it is moved to the left or right by the lateral movement mechanism so that the splitter is aligned with the corresponding borehole. F. Drive the rock splitter down so that its splitting rod enters the borehole to split the rock. At the same time, raise the drill rig on one side without a rock splitter to allow for the lateral movement of the rock as needed for splitting. G. After the splitting is completed, drive the splitter to rise and drive the grab bucket to grab the broken stones formed by drilling and splitting through the above positioning.

9. The crushing and gripping method according to claim 8, characterized in that: The drilling rig is lowered by a primary hydraulic cylinder driving a secondary lifting track and the drilling rig along the primary lifting track until the positioning head contacts the surface of the rock; the drilling depth is controlled by a roller chain mechanism driving the drilling rig to descend along the secondary lifting track; the drilling rig is raised by first the roller chain mechanism driving the drilling rig to rise along the secondary lifting track, and then by the primary hydraulic cylinder driving the secondary lifting track and the drilling rig to rise.

10. The crushing and gripping method according to claim 8, characterized in that, The descent of the rock splitter is driven by a primary hydraulic cylinder along a secondary lifting track and the rock splitter descends along the primary lifting track until the positioning head contacts the surface of the rock. The rock splitter's splitting rod enters the borehole by a secondary hydraulic cylinder driving the rock splitter to descend along the secondary lifting track. The rock splitter rises by first being driven by a secondary hydraulic cylinder to rise along the secondary lifting track, and then being driven by a primary hydraulic cylinder to rise along the secondary lifting track and the rock splitter.

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