Detachable rock drilling hammer for underwater hard rock construction

Abstract

A detachable rock drilling hammer for underwater hard rock construction comprises a streamline hammer body, a hammer head and a fixing piece. A first connecting piece is arranged at the bottom of the hammer body, and a second connecting piece matched with the first connecting piece is arranged at the top of the hammer head. Wherein the first connecting piece is provided with a first fixing hole in a penetrating mode, the second connecting piece is provided with a second fixing hole in a penetrating mode, the first fixing hole and the second fixing hole are parallel and communicated to form a fixing channel, the fixing piece is installed in the fixing channel, the hammer body and the hammer head are fixed together, the hammer head and other parts can be replaced in the using process, and the production cost is saved. A stop plate is further fixed to the opening of the second fixing hole, and it is guaranteed that the fixing piece cannot be separated from the fixing channel in the using process. During installation, the first fixing piece is installed firstly, then the second fixing piece is embedded, and finally the stop plate is arranged. The connection mode enables the hammer body and the hammer head to be stably connected and convenient to assemble and disassemble, and replacement of a single part can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction machinery and appliances, in particular to a detachable rock hammer for underwater hard rock construction. Background Art

[0002] Underwater excavation, dredging, and other rock removal operations typically utilize equipment such as cutter suction dredgers, bucket dredgers, and grab dredgers. For underwater hard rock removal, a combination of grab dredgers and jack hammers is often used. However, this combination can easily wear out the jack hammer's tip during underwater hard rock removal, leading to breakage over time. Repairing damaged jack hammers is time-consuming and can significantly impact project progress. Furthermore, because jack hammers rely on gravity to break rock, they are bulky and heavy, making them inconvenient to transport and install. Utility Model Content

[0003] In view of the shortcomings of the background technology, the purpose of the present invention is to provide a detachable rock hammer for underwater hard rock construction.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A detachable rock hammer for underwater hard rock construction, characterized by comprising:

[0006] The hammer body has a first connecting piece extending from the bottom, and the first connecting piece is penetrated by a first fixing hole;

[0007] The hammer head has a second connecting piece on the top that is adapted to the first connecting piece; a second fixing hole parallel to the first fixing hole is penetrated in the second connecting piece, and the second fixing hole is connected to the first fixing hole to form a fixing channel.

[0008] A fixing member adapted to the fixing channel, passed through the fixing channel, and fixed the hammer body and the hammer head, and

[0009] A stop plate is provided at the opening of the second fixing hole and is used to limit the movement of the fixing member after assembly.

[0010] Furthermore, the first connecting member is a mounting protrusion, the second connecting member is a mounting groove, and the mounting protrusion and the mounting groove are spliced ​​with each other.

[0011] Furthermore, the second fixing hole has a different aperture size from the first fixing hole, and the central axis of the second fixing hole deviates from the central axis of the first fixing hole, so that the fixing channel is located at the position of the second fixing hole to form a first matching portion.

[0012] Furthermore, the fixing member includes a first fixing member and a second fixing member; the first fixing member is provided with a first inclined surface, the second fixing member is provided with a second inclined surface adapted to the first inclined surface, and the second inclined surface and the first inclined surface are spliced ​​and fitted with each other.

[0013] Furthermore, a second matching portion adapted to the first matching portion is provided on a side of the first fixing member away from the first inclined surface, and the first fixing member and the second fixing member are clamped in the fixing channel through the matching of the second matching portion and the first matching portion.

[0014] Furthermore, the aperture size of the second fixing hole is larger than the aperture size of the first fixing hole, so that the first matching portion of the fixing channel is a convex portion; the second matching portion is a groove, and the width of the groove is not less than the depth of the first fixing hole.

[0015] Furthermore, at least two first hoisting holes are formed on the top of the hammer body, and the two first hoisting holes are connected to form a hoisting channel.

[0016] Furthermore, the hammer body is also provided with a second hoisting hole, and the second hoisting hole passes through two side surfaces of the hammer body.

[0017] Furthermore, the hammer body is streamlined.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model proposes a detachable rock hammer for underwater hard rock construction, which includes a streamlined hammer body, a hammer head and a fixing part. A first connecting part is provided at the bottom of the hammer body, and a second connecting part adapted to the first connecting part is provided at the top of the hammer head. The first connecting part is provided with a first fixing hole, and the second connecting part is provided with a second fixing hole. The first fixing hole is parallel to and connected with the second fixing hole to form a fixing channel. The fixing part is installed in the fixing channel to fix the hammer body and the hammer head together. The hammer head and other parts can be replaced during use, saving production costs. A stop plate is also fixed at the opening of the second fixing hole to ensure that the fixing part will not be separated from the fixing channel during use. During installation, the first fixing part is first installed, then the second fixing part is embedded, and finally the stop plate is set. This connection method makes the connection between the hammer body and the hammer head stable, easy to load and unload, and can realize the replacement of individual parts.

[0020] 2. The utility model proposes a detachable rock hammer for underwater hard rock construction, in which the hammer body and the hammer head are detachably connected, so that the various parts of the rock hammer can be manufactured separately, making it convenient to select different materials according to the different functions of different parts, thereby avoiding the problems of low strength of the overall hammer head requiring frequent maintenance, or high manufacturing cost due to the use of high-performance materials as a whole.

[0021] 3. This utility model proposes a detachable rock hammer for underwater hard rock construction. The hammer body and hammer head are connected by a fixing member. The fixing member includes a first fixing member with a first inclined surface and a second fixing member with a second inclined surface. During assembly, the first fixing member is installed first, and then the second fixing member is inserted along its first inclined surface. This ensures a more stable connection between the hammer body and the hammer head, facilitates disassembly, and reduces usage costs. After the fixing member is installed, a stop plate is provided at the opening of the second fixing hole to prevent the fixing member from falling during use.

[0022] 4. The utility model proposes a detachable rock hammer for underwater hard rock construction. The top of the hammer body is penetrated by a first hoisting hole and a second hoisting hole. An external steel wire rope is connected to the rock hammer through the first hoisting hole, driving the rock hammer to perform mechanical construction and complete underwater rock drilling work. The connection is simple and the transportation is convenient.

[0023] 5. The utility model proposes a detachable rock hammer for underwater hard rock construction, the hammer body of which is streamlined, which can effectively reduce water resistance and give full play to the potential energy of the hammer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of a detachable rock hammer for underwater hard rock construction according to the present invention;

[0026] Figure 2 This is a top view of a detachable rock hammer for underwater hard rock construction according to the present invention;

[0027] Figure 3 This is a cross-sectional view taken along line AA of a detachable rock hammer for underwater hard rock construction according to the present invention;

[0028] Figure 4 This is a sectional view taken along the BB axis of a detachable rock hammer for underwater hard rock construction according to the present invention;

[0029] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0030] Figure 6 This is a schematic diagram of a fixing member of a detachable rock hammer for underwater hard rock construction according to the present invention;

[0031] In the figure, 10, hammer body; 101, mounting protrusion; 102, first fixing hole; 103, first lifting hole; 104, second lifting hole; 20, hammer head; 201, mounting groove; 202, second fixing hole; 203, stop plate; 30, fixing member; 301, first fixing member; 3011, second matching portion; 302, second fixing member. DETAILED DESCRIPTION

[0032] The following combination Figure 1-6 The utility model is described in detail.

[0033] This embodiment provides a detachable rock hammer for underwater hard rock construction, such as Figure 1 As shown, the hammer comprises a hammer body 10, a hammer head 20, and a fixing member 30. A first connecting member is provided at the bottom of the hammer body 10, and a first fixing hole 102 is provided in the first connecting member. A second connecting member is provided at the top of the hammer head 20, which is compatible with the first connecting member and a second fixing hole 202 is provided in the second connecting member. The first fixing hole 102 is parallel to the second fixing hole 202. After the first and second connecting members are connected, the first and second fixing holes 102 and 202 are connected to form an installation channel. The fixing member 30 is removable and movable within the installation channel. It is also provided between the hammer body 10 and the hammer head 20 to secure them together. A stop plate 203 is fixed at the opening of the second fixing hole 202 to ensure that the fixing member 30 does not detach during use. Specifically, in this embodiment, the first connecting member is a mounting protrusion 101, the second connecting member is a mounting groove 201, and the stop plate 203 is a steel plate fixed to the second fixing hole 202 by welding or other connection methods. During installation, the mounting protrusion 101 of the hammer body 10 is first placed within the mounting groove 201 of the hammer head 20, and the first fixing hole 102 is aligned with the second fixing hole 202. The fixing member 30 is then inserted into the mounting channel to secure the hammer body 10 and hammer head 20 together. Specifically, the hammer head 20 can be an axe-shaped, pencil-shaped, or multi-toothed hammer head 20. To replace the hammer head 20, simply cut and remove the stop plate 203, then hammer the second fixing member 302 to disassemble the fixing member 30, separating the hammer body 10 from the hammer head 20. The corresponding parts can then be replaced as needed. This method only requires cutting the small stop plate 203, making it convenient.

[0034] In this embodiment, the first fixing hole 102 and the second fixing hole 202 have different diameters, and the central axis of the second fixing hole 202 deviates from the central axis of the first fixing hole 102. The first fixing hole 102 is arranged to fit on one side of the second fixing hole 202, forming a first mating portion on the other side of the fixing channel. If the diameter of the first fixing hole 102 is larger than that of the second fixing hole 202, the first mating portion will be a protrusion when the mounting protrusion 101 and the mounting groove 201 mate. If the diameter of the first fixing hole 102 is smaller than that of the second fixing hole 202, the first mating portion will be a groove.

[0035] In this embodiment, Figures 4 to 6 As shown, the fixing member 30 includes a first fixing member 301 and a second fixing member 302. The first fixing member 301 has a first inclined surface on one side and a second matching portion 3011 on the other side that matches the first matching portion; the second fixing member 302 has a second inclined surface on one side that matches the first inclined surface and a second matching portion on the other side that matches the fixing channel. During installation, the second fixing member 302 is inserted into the fixing channel along the first inclined surface until the first inclined surface and the second inclined surface are completely aligned. In this embodiment, the aperture size of the first fixing hole 102 is smaller than the aperture size of the second fixing hole 202, the first matching portion is a protrusion, and the second matching portion 3011 is a groove, and the width of the groove is not less than the depth of the first fixing hole 102, so that the first fixing member 301 can be snapped into the first fixing hole 102. During installation, first snap the first fixing member 301 into the first mating portion within the installation channel. Then, install the second fixing member 302 along its first inclined surface. Hammer the second fixing member 302 firmly into the installation channel until the second inclined surface mates with the first, completing the connection. In this embodiment, at least one stopper 203 is positioned within the second fixing hole 202, at one side of the opening in the direction of installation of the second fixing member 302, to prevent the second fixing member 302 from dislodging from the fixing channel.

[0036] In this embodiment, the mounting protrusion 101 is provided with a plurality of first fixing holes 102, and the mounting recess 201 is provided with a corresponding plurality of second fixing holes 202. A fixing member 30 is movably inserted into each mounting channel, and a stop plate 203 is fixed to the openings at both ends of each second fixing hole 202. Specifically, in this embodiment, the mounting protrusion 101 is provided with two first fixing holes 102, and the mounting recess 201 is provided with two corresponding second fixing holes 202. A stop plate 203 is provided at the opening of each second fixing hole 202. A fixing member 30 is movably inserted into each mounting channel. A pin (not shown) is also provided in the fixing channel, and the pin abuts the fixing member 30 against the fixing channel, thereby enhancing the stability of the fixing member 30. During installation, first install the pins in the first fixing holes 102 and the second fixing holes 202. After each first fixing hole 102 is aligned with the corresponding second fixing hole 202, first insert the first fixing member 301 into the fixing channel. The first mating portion 3011 is then engaged to secure the first fixing member 302. Then, insert the second fixing member 302 and hammer it into place, finally securing the stop plate 203. During disassembly, first remove the stop plate 203, then tap one end of the second fixing member 302 to disengage it in its original installation direction.

[0037] In this embodiment, Figure 2 and Figure 3 As shown, a first lifting hole 103 is provided on the top of the hammer body 10. At least two first lifting holes 103 are provided on the top of the hammer body 10. The two first lifting holes 103 are connected to form a lifting channel. In this embodiment, the lifting channel is a U-shaped channel. When in use, construction equipment such as a grab ship lowers the lifting system wire rope, and the wire rope is passed through the first lifting hole 103. After the wire rope is connected to the rock hammer through the lifting channel, it can be put into use. In this embodiment, a third lifting hole is provided on both sides of the hammer body 10. The third lifting hole is connected to the lifting channel. The position of the wire rope can be moved through the third lifting hole, which facilitates the assembly of the wire rope and the hammer body 10. The hammer body 10 is also provided with a second lifting hole 104. The second lifting hole 104 runs through both sides of the hammer body 10, which can facilitate lifting and transportation.

[0038] In this embodiment, the hammer body 10 and hammer head 20 can be manufactured separately according to actual needs. Specifically, the hammer body 10 and hammer head 20 are manufactured using matching molds, and the size of the fixing member 30 is designed based on the actual sizes of the first fixing hole 102 and the second fixing hole 202. The hammer body 10, hammer head 20, and fixing member 30 can be manufactured separately using different materials according to actual needs. In this embodiment, the hammer body 10 is made of carbon steel; the fixing member 30 and hammer head 20 are made of chromium alloy, which has high hardness, good wear resistance, and corrosion resistance, and can better adapt to the working environment. In this embodiment, the width of the hammer body 10 ranges from 150cm to 210cm, and the thickness ranges from 60cm to 90cm; the width of the hammer head 20 ranges from 130cm to 160cm, and the thickness ranges from 5cm to 70cm; the fixing member 30 is 60cm long, 20cm high, and 15cm wide. The groove of the second matching portion 3011 is 2cm deep and 30cm long. After the hammer head 20 and the hammer body 10 are assembled, the height of the entire rock hammer ranges from 500 cm to 600 cm.

[0039] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand and implement the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A detachable rock hammer for underwater hard rock construction, characterized in that: include: The hammer body has a first connecting piece extending from the bottom, and the first connecting piece is penetrated by a first fixing hole; The hammer head has a second connecting piece on the top that is adapted to the first connecting piece; a second fixing hole parallel to the first fixing hole is formed in the second connecting piece, and the second fixing hole is connected to the first fixing hole to form a fixing channel; a fixing member adapted to the fixing channel, passed through the fixing channel, and fixing the hammer body and the hammer head; and A stop plate is provided at the opening of the second fixing hole and is used to limit the movement of the fixing member after assembly.

2. A detachable rock hammer for underwater hard rock construction according to claim 1, characterized in that: The first connecting member is a mounting protrusion, the second connecting member is a mounting groove, and the mounting protrusion and the mounting groove are spliced ​​with each other.

3. A detachable rock hammer for underwater hard rock construction according to claim 2, characterized in that: The second fixing hole has a different diameter from the first fixing hole, and a central axis of the second fixing hole deviates from the central axis of the first fixing hole, so that a first matching portion is formed at a position of the fixing channel located at the second fixing hole.

4. A detachable rock hammer for underwater hard rock construction according to claim 3, characterized in that: The fixing member includes a first fixing member and a second fixing member; the first fixing member is provided with a first inclined surface, and the second fixing member is provided with a second inclined surface adapted to the first inclined surface, and the second inclined surface and the first inclined surface are spliced ​​and fitted with each other.

5. A detachable rock hammer for underwater hard rock construction according to claim 4, characterized in that: A second matching portion adapted to the first matching portion is provided on a side of the first fixing member away from the first inclined surface, and the first fixing member and the second fixing member are clamped in the fixing channel through the matching of the second matching portion and the first matching portion.

6. A detachable rock hammer for underwater hard rock construction according to claim 5, characterized in that: The aperture size of the second fixing hole is larger than the aperture size of the first fixing hole, so that the first matching portion of the fixing channel is a convex portion, and the second matching portion is a groove, and the width of the groove is not less than the depth of the first fixing hole.

7. A detachable rock hammer for underwater hard rock construction according to claim 6, characterized in that: At least two first hoisting holes are formed on the top of the hammer body, and the two first hoisting holes are connected to form a hoisting channel.

8. A detachable rock hammer for underwater hard rock construction according to claim 7, characterized in that: The hammer body is further provided with a second hoisting hole, and the second hoisting hole runs through the two side surfaces of the hammer body.

9. A detachable rock hammer for underwater hard rock construction according to claim 8, characterized in that: The hammer body is streamlined.

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