A grab bucket rock-breaking mechanism

Abstract

This utility model discloses a rock-breaking mechanism for a grab bucket, including several drills and splitters located on the side of the grab bucket. The number of drills and splitters is equal, and they are arranged alternately side-by-side. The drills and splitters are connected as a whole and are driven to move horizontally by a lateral movement mechanism. Each drill and splitter also has a lifting mechanism to drive its own vertical movement. Through drilling and splitting, underwater rocks can be split, facilitating the grab head's gripping. Furthermore, the spaced drills and splitters, along with their ability to move horizontally as a whole, allow for drilling, horizontal movement of a hole position, and splitting operations, facilitating the alignment of the splitting rod into the drill hole.

Description

Technical Field

[0001] This utility model relates to underwater earthwork excavation equipment, specifically to a rock-breaking mechanism for a grab bucket. 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 include underwater blasting and underwater rock breaking with rock drills.

[0003] While underwater blasting is highly efficient, it fails to meet increasingly stringent national environmental protection requirements. Underwater rock breaking with rock drills is more environmentally friendly, but 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, thus its effectiveness is limited by water depth and it cannot break rocks in deep water.

[0004] If a drilling rig and a rock splitter are used for rock breaking, how to achieve coordination between the two, that is, how to ensure that the splitting rod of the rock splitter can enter the drill hole made by the drilling rig, is a problem that needs to be solved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a grab bucket rock-breaking mechanism that can be moved as a whole and makes it easy for the splitter to be aligned with the drill hole, thus facilitating rock breaking.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A rock-breaking mechanism for a grab bucket includes several drills and splitters located on the side of the grab bucket. The number of drills and splitters is the same and they are arranged alternately side by side. The drills and splitters are connected as a whole and are driven to move as a whole by a lateral movement mechanism. All drills and splitters also have a lifting mechanism to drive their respective vertical movement.

[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 lateral movement mechanism includes a lateral movement track horizontally mounted on the side of the grab bucket, several lateral movement sliders mounted on the lateral movement track for connecting corresponding drilling rigs and splitting machines, and a lateral movement cylinder connected to one of the drilling rigs for driving the drilling rig and splitting machine to move horizontally as a whole.

[0012] This invention relates to a grab bucket rock-breaking mechanism that, by adding a drill and a rock splitter to the grab bucket, can drill holes and split large rocks, breaking them into smaller pieces before grabbing them with the grab bucket, thus solving the problem of direct grabbing being impossible. Seabed positioning can be achieved through a single-stage lifting and positioning head. The drill and rock splitter are arranged side-by-side at intervals and can move laterally as a whole; after drilling, a lateral shift of one hole position facilitates the alignment and entry of the rock splitter's splitting rod into the borehole. Attached Figure Description

[0013] The utility model will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0014] Figure 1 This is a three-dimensional schematic diagram of the rock-breaking mechanism of this utility model applied to a grab bucket;

[0015] Figure 2 This is a three-dimensional schematic diagram of the grab bucket of this utility model from another perspective;

[0016] Figure 3 This is a schematic diagram of the drilling rig installation structure on one side of the grab bucket of this utility model;

[0017] Figure 4 For along Figure 3 Sectional view of line AA in the middle;

[0018] Figure 5 This is a schematic diagram of the installation structure of the rock-breaking mechanism of this utility model;

[0019] Figure 6 For along Figure 5 Sectional view of line AA in the middle;

[0020] Figure 7 This is a schematic diagram showing the drilling process of one side of the drilling rig descending to perform drilling according to this utility model.

[0021] Figure 8 This is a schematic diagram showing the splitting process as the splitter descends on the other side of the present invention.

[0022] Figure 9 This is a schematic diagram showing the grab bucket of this utility model grabbing gravel. Detailed Implementation

[0023] The rock-breaking mechanism of this utility model is as follows: Figure 1 , Figures 5-6 As shown, the device includes several drilling rigs 2 and rock splitters 3 located on one side of the grab bucket's outer shell. The number of drilling rigs 2 and rock splitters 3 is the same, and they are arranged alternately side by side with equal spacing. Figure 1 The side shown has two drilling rigs 2 and two rock splitters 3. The drilling rigs 2 and rock splitters 3 are interconnected as a whole by connecting rods 4 and are driven to move as a whole by a lateral movement mechanism. All drilling rigs 2 and rock splitters 3 also have lifting mechanisms to drive their respective vertical movements. In this way, the five drilling rigs 2 on this side can achieve horizontal movement as a whole through the lateral movement mechanism.

[0024] Please combine Figures 1-4 As shown, the grab bucket is a double-lobed electro-hydraulic grab bucket. On the other side of the grab bucket body 1, several equally spaced, parallel drilling rigs 2 are connected as a single unit. Figure 2 The side shown has five drilling rigs 2, which are interconnected by connecting rods 4 and are also driven by a lateral movement mechanism to move laterally. Each drilling rig 2 also has a lifting mechanism.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] The steps for the grab bucket with the rock-breaking mechanism of this utility model to break and grab rocks are as follows:

[0031] A. Lower the grab bucket to a suitable position on the bottom of the water using a steel cable and stop.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A rock breaking mechanism of a grab, characterized by: The drilling machine and the splitting machine are arranged on the side of the grab bucket, the number of the drilling machines and the splitting machines is the same, the drilling machines and the splitting machines are arranged alternately and side by side, the drilling machines and the splitting machines are connected as a whole, the whole is driven to move horizontally by the horizontal moving mechanism, and all the drilling machines and the splitting machines further have lifting mechanisms for driving vertical movement of each drilling machine and each splitting machine.

2. A rock breaking mechanism for a grab according to claim 1, characterized in that: The lifting mechanism of the drilling machine comprises a vertical first lifting track, a first oil cylinder, a second lifting track and a roller chain mechanism, the first lifting track is connected with a corresponding horizontal moving sliding block, the first oil cylinder is used to drive the second lifting track to lift along the first lifting track, and the roller chain mechanism is used to drive the drilling machine to lift along the second lifting track.

3. A rock breaking mechanism for a grab according to claim 1, characterized in that: The lifting mechanism of the splitting machine comprises a vertical first lifting track, a first oil cylinder, a second lifting track and a second oil cylinder, the first lifting track is connected with a corresponding horizontal moving sliding block, the first oil cylinder is used to drive the second lifting track to lift along the first lifting track, and the second oil cylinder is used to drive the splitting machine to lift along the second lifting track.

4. A rock breaking mechanism for a grab according to claim 2 or 3, characterized in that: The second lifting track further has a positioning head at the lower end.

5. A rock breaking mechanism for a grab according to claim 1, characterized in that: The horizontal moving mechanism comprises horizontal moving tracks arranged on the side of the grab bucket, a plurality of horizontal moving sliding blocks arranged on the horizontal moving tracks and used to connect corresponding drilling machines and splitting machines, and a horizontal moving oil cylinder connected with one of the drilling machines and used to drive the drilling machines and the splitting machines to move horizontally as a whole.

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