Underwater rock drilling equipment

Abstract

The utility model provides underwater rock drilling equipment, and relates to the technical field of underwater rock drilling. The underwater rock drilling equipment comprises a power unit and a drill rod, wherein the drill rod is movably fixed at the bottom of the underwater rock drilling equipment; the output end of the power unit is opposite to the top end of the drill rod to drive the drill rod to rock. According to the embodiment of the invention, the rock drilling equipment is arranged underwater, and the drill rod is driven to rock through the power unit in the rock drilling equipment, so that the times of repeatedly lifting the equipment are greatly reduced, the energy loss is reduced, the rock drilling efficiency is effectively improved, and the time consumption and rock drilling cost of rock drilling engineering are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of underwater rock drilling, and in particular to an underwater rock drilling device. Background Art

[0002] During the construction of seabed trench excavation and channel regulation, in order to meet the shipping water depth and trench excavation depth, it is necessary to remove underwater rocks. Currently, the commonly used methods for cleaning underwater reefs are underwater blasting, heavy hammer impact and drilling splitting. Although the underwater blasting method is mature in technology and has high work efficiency, it has a great impact on the environment. The drilling splitting method is not safe and has low work efficiency. The heavy hammer impact method is the most commonly used reef clearing technology and has good applicability in marine ecological protection areas.

[0003] The heavy hammer impact method is to lift the rock drill to a certain height and then let it fall freely, using the gravitational potential energy of the rock drill to convert it into a huge impact force to break the reef. It has the advantages of simple construction equipment and wide applicability. It has a good reef clearing effect on hard rock formations such as slightly weathered and moderately weathered.

[0004] However, due to the obstruction of water, the rock drill loses a lot of gravitational potential energy during the descent process, making it difficult to achieve the rock crushing effect in one go. The rock drill needs to be lifted and lowered many times, which reduces the rock drilling efficiency and increases the rock drilling cost. Utility Model Content

[0005] The present application provides an underwater rock drilling device, which can solve the problems that the existing heavy hammer impact method is easily affected by water, has low rock drilling efficiency, long time consumption and high rock drilling cost. To achieve this purpose, the present application provides the following solutions.

[0006] According to one aspect of an embodiment of the present application, there is provided an underwater rock drilling device, comprising: a power unit and a drill rod, wherein the drill rod is movably fixed to the bottom of the underwater rock drilling device;

[0007] The output end of the power unit is opposite to the top end of the drill rod to drive the drill rod to drill rocks.

[0008] In a possible implementation, the power unit includes a waterproof housing and a hydraulic impact hammer. The waterproof housing is arranged around the hydraulic impact hammer, and a first through hole corresponding to an output end of the hydraulic impact hammer is provided at the bottom of the waterproof housing.

[0009] In a possible implementation, an air intake structure and a hydraulic oil transmission port are provided on the top of the waterproof housing, the hydraulic oil transmission port is connected to the hydraulic impact hammer, and the air intake structure is connected to the cavity inside the waterproof housing.

[0010] In a possible implementation, a replacement striking device is further included, and the replacement striking device is located between the drill rod and the power unit to transmit the kinetic energy of the power unit to the drill rod.

[0011] In a possible implementation, it further includes a first sheath, which surrounds the replacement striking device and is fixed to a side of the power unit close to the drill rod.

[0012] In a possible implementation, an upper shock absorbing structure is further included, the top diameter of the substitute striking device is smaller than the bottom diameter of the substitute striking device, and the upper shock absorbing structure is located on a side of the power unit close to the substitute striking device and between the substitute striking device and the first sheath.

[0013] In a possible implementation, a lower shock absorbing structure is further included. The top of the drill rod is enlarged. The lower shock absorbing structure is located on the top of the drill rod away from the substitution device.

[0014] In a possible implementation, it also includes a second sheath, which is connected to the first sheath on a side away from the power unit. The second sheath is provided with an opening on a side away from the first sheath, and the opening penetrates the second sheath. The bottom of the drill rod passes through the second sheath along the opening.

[0015] In a possible implementation, a bushing is further included, which is located inside the second sheath and sleeved on the upper part and the middle part of the drill rod.

[0016] In a possible implementation, a floating sealing device is further included. The floating sealing device is sleeved on the drill rod and is arranged at the opening of the second sheath.

[0017] The beneficial effects of the technical solution provided by the embodiment of the present application are:

[0018] The underwater rock drilling equipment provided by the present application is provided with a power unit and a drill rod, and the drill rod is movably fixed to the bottom of the underwater rock drilling equipment; the output end of the power unit is opposite to the top end of the drill rod to drive the drill rod to drill rocks. The embodiment of the present application sets the rock drilling equipment underwater, and drives the drill rod to drill rocks by the power unit in the rock drilling equipment, thereby greatly reducing the number of times the equipment is repeatedly lifted, reducing energy loss, effectively improving rock drilling efficiency, and reducing the time consumption and rock drilling cost of rock drilling projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in describing the embodiments of the present application.

[0020] Figure 1 A cross-sectional view of an underwater rock drilling device provided in an embodiment of the present application;

[0021] Figure 2 A cross-sectional view of a partial structure of an underwater rock drilling device provided in an embodiment of the present application;

[0022] Figure 3 A cross-sectional view of a first sheath provided in an embodiment of the present application;

[0023] Figure 4 A top view of a first sheath provided in an embodiment of the present application;

[0024] Figure 5 A bottom view of the first sheath provided in an embodiment of the present application.

[0025] Explanation of reference numerals: 201, waterproof housing; 202, drill rod; 203, air intake structure; 204, power unit; 205, replacement striking device; 206, airway structure; 207, first sheath; 208, upper shock absorbing structure; 209, lower shock absorbing structure; 210, second sheath; 211, first bushing; 212, second bushing; 213, first pad; 214, first gasket; 215, second gasket; 216, bottom pressure plate. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0027] It will be understood by those skilled in the art that, unless specifically stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the terms "including" and "comprising" used in the embodiments of the present application refer to that the corresponding features can be implemented as the presented features, information, data, steps, operations, elements and / or components, but do not exclude the implementation of other features, information, data, steps, operations, elements, components and / or combinations thereof supported by the present technical field. It should be understood that when we say that an element is "connected" or "coupled" to another element, the one element may be directly connected or coupled to the other element, or it may refer to that the one element and the other element establish a connection relationship through an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein indicates at least one of the items defined by the term, for example, "A and / or B" indicates that it is implemented as "A", or is implemented as "A", or is implemented as "A and B".

[0028] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0029] The following describes several exemplary embodiments to illustrate the technical solutions of the embodiments of the present application and the technical effects produced by the technical solutions of the present application. It should be noted that the following embodiments can refer to, draw on or combine with each other, and the same terms, similar features and similar implementation steps in different embodiments will not be described repeatedly.

[0030] The underwater rock drilling equipment provided in the present application is intended to solve at least one technical problem existing in the prior art.

[0031] An underwater rock drilling device is provided in an embodiment of the present application, such as Figure 1-Figure 5 As shown, the underwater rock drilling equipment includes: a power unit 204 and a drill rod 202, and the drill rod 202 is movably fixed at the bottom of the underwater rock drilling equipment; the output end of the power unit 204 is opposite to the top of the drill rod 202 to drive the drill rod 202 to drill rocks.

[0032] Optionally, the power unit 204 includes a waterproof shell 201, a hydraulic impact hammer and a replacement device 205. The waterproof shell 201 is arranged around the hydraulic impact hammer, and a first through hole corresponding to the output end of the hydraulic impact hammer is provided at the bottom of the waterproof shell 201. The top of the replacement device 205 is opposite to the first through hole. The hydraulic impact hammer transmits the impact energy to the replacement device 205 through the first through hole, and further transmits it to the drill rod 202.

[0033] Optionally, an air intake structure 203 and a hydraulic oil transmission port are provided on the top of the waterproof shell 201. The hydraulic oil transmission port is connected to the hydraulic impact hammer. The air intake structure 203 is connected to the cavity inside the waterproof shell 201. Compressed air enters the cavity inside the waterproof shell 201 through the air intake structure 203 to form a waterless environment.

[0034] In one embodiment, the air intake structure 203 is a compressed air inlet valve, which is connected to the exhaust pipe of the air compressor, and controls whether the compressed air enters the waterproof housing 201. The hydraulic oil transmission port is connected to the hydraulic oil pipe of the hydraulic pump, and the hydraulic impact hammer obtains hydraulic oil through the hydraulic oil transmission port.

[0035] Optionally, the alternative striking device 205 is disposed between the drill rod 202 and the power unit 204. The power of the power unit 204 is transmitted to the drill rod 202 via the alternative striking device 205.

[0036] In one embodiment, the top of the replacement device 205 is opposite to the output end of the power unit 204, and its diameter is smaller than the diameter of the first through hole at the bottom of the waterproof housing 201. The bottom diameter of the replacement device 205 is larger than the top diameter, and the bottom diameter is larger than the diameter of the first through hole.

[0037] Optionally, a first sheath 207 is provided outside the replacement device 205, the first sheath 207 surrounds the replacement device 205, and is fixed to the side of the power unit 204 close to the drill rod 202. The first sheath 207 and the bottom of the waterproof shell can be fixed by bolts, and a connecting flange can be provided at the bottom of the waterproof shell 201, a first through hole is provided in the middle of the connecting flange, and a screw hole is provided on the connecting flange, and the connecting flange, the waterproof shell 201 and the first sheath 207 are fixed to each other by the screw hole.

[0038] Optionally, a first gasket 213 may be further provided between the connecting flange and the first sheath 207 to protect the connecting flange and the first sheath 207 .

[0039] Optionally, in order to prevent the impact of the power unit 204 from damaging the underwater rock drilling equipment, the underwater rock drilling equipment further includes an upper shock absorbing structure 208 and a lower shock absorbing structure 209. The upper shock absorbing structure 208 and the lower shock absorbing structure 209 are both arranged inside the first jacket 207. The upper shock absorbing structure 208 is located on the side of the power unit 204 close to the replacement device 205, and is located between the replacement device 205 and the first jacket 207. The top of the drill rod 202 is swollen, and the lower shock absorbing structure 209 is located on the top of the drill rod 202 away from the replacement device 205.

[0040] In one embodiment, the upper shock absorbing structure 208 is disposed around the upper part of the alternative striking device 205, and the alternative striking device 205 contacts the upper shock absorbing structure when it moves toward the waterproof housing 201. The top of the drill rod 202 is enlarged, and the lower shock absorbing structure 209 is located at the top of the drill rod 202 away from the alternative striking device 205 and is disposed around the drill rod 202. When the drill rod 202 moves away from the alternative striking device 205, it contacts the top of the drill rod 202. In addition, the first pad 213 covers the top of the upper shock absorbing structure 208 and partially extends to the side of the upper shock absorbing structure 208 close to the alternative striking device 205.

[0041] Optionally, in order to effectively fix the upper shock absorbing structure 208 and the lower shock absorbing structure 209, an annular recessed area is provided at a corresponding position inside the first sheath 207, and the upper shock absorbing structure 208 and the lower shock absorbing structure 209 are fixed correspondingly in the annular recessed area.

[0042] In one embodiment, a first liner 214 is disposed at the bottom of the annular recessed area corresponding to the upper shock absorbing structure 208 , and a second liner 215 is disposed at the bottom of the annular recessed area corresponding to the lower shock absorbing structure 209 .

[0043] Optionally, in order to further fix the power unit 204 in the waterproof housing 201, a pressure plate is further provided on the top of the power unit 204, one side of the pressure plate is fixed in the waterproof housing 201, and the side of the pressure plate away from the waterproof housing 201 is fixed to the top of the power unit 204. The first sheath 207 is provided with a through hole corresponding to the output end of the power unit 204, and the substitute striking device 205 is arranged in the through hole, and the output end of the power unit 204 transmits power to the substitute striking device 205 through the through hole.

[0044] Optionally, the underwater rock drilling equipment further includes an airway structure 206, the top end of the drill rod 202 is provided inside the airway structure 206 with a replacement device 205, and the airway structure 206 is connected to the cavity inside the waterproof shell 201, thereby reducing energy loss during the rock drilling process. Specifically, the airway structure 206 is located outside the first jacket 207, and a first opening and a second opening are provided on the first jacket 207 at a position corresponding to the airway structure 206, the first opening is connected to the inside of the first jacket 207, and the second opening is connected to the inside of the waterproof shell 201.

[0045] Optionally, a second sheath 210 is further included, which is connected to the side of the first sheath 207 away from the power unit 204. The second sheath 210 is provided with an opening on the side away from the first sheath 207, and the opening passes through the second sheath 210. The bottom of the drill rod 202 passes through the second sheath 210 along the opening, and the second sheath 210 is used to protect the drill rod 202.

[0046] Optionally, the second jacket 210 is provided with an opening for the extension and retraction of the drill rod 202 on one side away from the waterproof housing 201. In addition, to prevent water from entering the first jacket 207, the underwater rock drilling equipment further includes a floating sealing structure, which is arranged in the opening for the extension and retraction of the drill rod 202 and is located between the second jacket 210 and the drill rod 202.

[0047] Optionally, the floating sealing structure may be a sealing ring, and a corresponding recessed area is provided at the opening of the second jacket 210 to place the floating sealing structure. Furthermore, to prevent the floating sealing structure from moving, a bottom pressure plate 216 is further provided on the side of the second jacket 210 away from the first jacket 207, and the bottom pressure plate may be fixed to the second jacket 210 by bolts. Furthermore, a through hole corresponding to the opening of the second jacket 210 is provided on the bottom pressure plate, and the diameter of the through hole matches the inner diameter of the sealing ring.

[0048] Optionally, the underwater rock drilling equipment further includes a bushing for the drill rod 202, which is located inside the second jacket 210 and sleeved on the upper and middle parts of the drill rod 202. The bushing for the drill rod 202 includes a first bushing 211 and a second bushing 212, which are arranged at intervals and located between the lower shock absorbing structure 209 and the floating sealing structure.

[0049] The underwater rock drilling equipment of the present application will be further described below in conjunction with the working principle of the underwater rock drilling equipment.

[0050] In one embodiment, the power unit 204 is a hydraulic impact hammer, and the striking energy of the hydraulic impact hammer is transmitted to the drill rod 202 through the replacement device 205 (because the hammer head has a small diameter, if the drill rod 202 is directly hit, if the drill rod 202 is tilted at a small angle, it is easy to cause structural damage, so the striking energy is transmitted through the replacement device 205), and the drill rod 202 resists and impacts the rock surface to achieve the function of breaking the rock. In order to enable the hydraulic impact hammer to operate normally underwater, the underwater rock drilling equipment is provided with a waterproof shell 201, and compressed air is injected into the waterproof shell 201 through the compressed air inlet valve, and the compressed air is used to keep the working environment of the hydraulic impact hammer in a dry environment. The upper shock absorbing device and the lower shock absorbing device are mainly used to absorb and eliminate the residual energy of a single hit of the hydraulic impact hammer to ensure that the equipment will not be damaged.

[0051] Specifically, the hydraulic impact hammer of the underwater rock drilling equipment is powered through the hydraulic oil transmission port to start rock drilling. As the penetration depth of the drill rod 202 into the rock changes, the stroke sensor set in the hydraulic lifting cylinder of the underwater rock drilling equipment detects the extended length of the cylinder piston rod. When the length reaches the set rock drilling depth, the rock drilling is considered to be completed. The hydraulic pump station powers the hydraulic lifting cylinder, and the pulling force of the hydraulic lifting cylinder is used to pull the drill rod 202 of the underwater rock drilling equipment out of the rock.

[0052] The present application sets a power unit 204 and a drill rod 202 in the underwater rock drilling equipment, and movably fixes the drill rod 202 at the bottom of the underwater rock drilling equipment; the output end of the power unit 204 is opposite to the top of the drill rod 202 to drive the drill rod 202 to drill the rock. The embodiment of the present application sets the rock drilling equipment underwater, and drives the drill rod 202 to drill the rock through the power unit 204 in the rock drilling equipment, thereby greatly reducing the number of times the equipment is repeatedly lifted, reducing energy loss, effectively improving rock drilling efficiency, and reducing the time consumption and rock drilling cost of the rock drilling project.

[0053] The terms "first", "second", "third", "fourth", "1", "2", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that shown or described in the drawings.

[0054] It should be understood that, although each operation step is indicated by arrows in the flowchart of the embodiment of the present application, the implementation order of these steps is not limited to the order indicated by the arrows. Unless clearly stated herein, in some implementation scenarios of the embodiment of the present application, the implementation steps in each flowchart can be performed in other orders according to demand. In addition, some or all of the steps in each flowchart may include multiple sub-steps or multiple stages based on actual implementation scenarios. Some or all of these sub-steps or stages may be executed at the same time, and each sub-step or stage in these sub-steps or stages may also be executed at different times respectively. In different scenarios of execution time, the execution order of these sub-steps or stages may be flexibly configured according to demand, and the embodiment of the present application does not limit this.

[0055] The above is only an optional implementation method for some implementation scenarios of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the solution of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. An underwater rock drilling device, characterized in that: include: A power unit and a drill rod, wherein the drill rod is movably fixed to the bottom of the underwater rock drilling equipment; The output end of the power unit is opposite to the top end of the drill rod to drive the drill rod to drill rocks.

2. The underwater rock drilling equipment according to claim 1, characterized in that: The power unit comprises a waterproof shell and a hydraulic impact hammer. The waterproof shell is arranged around the hydraulic impact hammer, and a first through hole corresponding to the output end of the hydraulic impact hammer is provided at the bottom of the waterproof shell.

3. The underwater rock drilling equipment according to claim 2, characterized in that: An air intake structure and a hydraulic oil transmission port are provided on the top of the waterproof housing. The hydraulic oil transmission port is connected to the hydraulic impact hammer, and the air intake structure is connected to the cavity inside the waterproof housing.

4. The underwater rock drilling equipment according to claim 1, characterized in that: The utility model also comprises a replacement striking device, which is located between the drill rod and the power unit to transmit the kinetic energy of the power unit to the drill rod.

5. The underwater rock drilling equipment according to claim 4, characterized in that: It also includes a first sheath, which surrounds the replacement device and is fixed on the side of the power unit close to the drill rod.

6. The underwater rock drilling equipment according to claim 5, characterized in that: It also includes an upper shock absorbing structure, the top diameter of the substitute striking device is smaller than the bottom diameter of the substitute striking device, and the upper shock absorbing structure is located on the side of the power unit close to the substitute striking device and between the substitute striking device and the first sheath.

7. The underwater rock drilling equipment according to claim 5, characterized in that: It also comprises a lower shock absorbing structure. The top of the drill rod is enlarged. The lower shock absorbing structure is located at the top of the drill rod away from the side of the substitution device.

8. The underwater rock drilling equipment according to claim 5, characterized in that: It also includes a second sheath, which is connected to the first sheath on a side away from the power unit. The second sheath is provided with an opening on a side away from the first sheath. The opening penetrates the second sheath, and the bottom of the drill rod passes through the second sheath along the opening.

9. The underwater rock drilling equipment according to claim 8, characterized in that: It also includes a bushing, which is located inside the second sheath and sleeved on the upper part and the middle part of the drill rod.

10. The underwater rock drilling equipment according to claim 8, characterized in that: It also includes a floating sealing device, which is sleeved on the drill rod and arranged at the opening of the second sheath.

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