Underwater rock drilling hammer

Abstract

The invention relates to an underwater rock drilling hammer which comprises an outer frame, a hammer body, a hammer head assembly, a lifting claw and lifting equipment. The hammer head assembly is arranged at the lower end of the interior of the outer frame, the hammer body is connected into the outer frame in a sliding mode, the lifting claw is arranged on the upper portion of the outer frame and used for lifting the hammer body, and the lifting claw is connected with the lifting device and used for providing power. The outer frame comprises an outer frame body, and outer frame body vertical sliding rail grooves are formed in the two sides of the interior of the outer frame body. A plurality of outer frame body periphery waist hoops are connected to the outer side of the outer frame body at equal intervals; the lower end of the outer frame body is connected with an outer frame body bottom arc-shaped baffle. The upper end of the outer frame body is connected with an outer frame top limiting device through an outer frame bolt and nut set, and the middle of the outer frame top limiting device is connected with an outer frame top limiting frame. The underwater rock drilling hammer aims at overcoming existing defects and is high in crushing efficiency.

Description

Technical Field

[0001] The invention relates to an underwater rock hammer. Background Art

[0002] Underwater rock drilling generally uses a rock drill, which is lifted to a certain height and then allowed to fall freely. Under the action of gravity, it hits and destroys the underwater reefs, breaking them up to achieve the purpose of removing the reefs. Underwater reef blasting is completely prohibited in domestic and foreign water transport projects. The underwater rock drilling process is simple to operate and has little pollution to the surrounding environment, which has great advantages.

[0003] There are axe-type and cylindrical types of rock drills used in underwater rock drilling technology, but all of them are lifted as a whole and then allowed to fall freely. When the underwater reef is strong, it is necessary to hit it repeatedly at the same point to quickly break the underwater reef. However, the rock drill is affected by the impact of water flow and various resistances during the falling process, and basically will not land accurately at the same point, resulting in low construction efficiency.

[0004] Therefore, an underwater rock hammer is proposed in view of the above problems. Summary of the invention

[0005] The purpose of the present invention is to overcome the existing defects and provide an underwater rock hammer with high breaking efficiency.

[0006] The technical solution to achieve the above object is: an underwater rock hammer, including an outer frame, a hammer body, a hammer head assembly, a lifting claw and a lifting device;

[0007] The hammer head assembly is arranged at the lower end inside the outer frame, the hammer body is slidably connected inside the outer frame, the lifting claw is arranged on the upper part of the outer frame for lifting the hammer body, and the lifting claw is connected to the lifting device for providing power.

[0008] Preferably, the outer frame comprises an outer frame body, and vertical slide rail grooves of the outer frame body are provided on both sides of the inner side of the outer frame body; a plurality of waist hoops around the outer frame body are connected at equal distances to the outer side of the outer frame body; and an arc-shaped baffle plate at the bottom of the outer frame body is connected to the lower end of the outer frame body;

[0009] The upper end of the outer frame body is connected to the outer frame top limiting device through an outer frame bolt and nut group, and the middle part of the outer frame top limiting device is connected to the outer frame top limiting frame; the lower end surface of the outer frame top limiting device is connected to the outer frame top wedge device.

[0010] Preferably, the upper end surface of the hammer body is connected to the hammer body lifting ear; the two sides of the hammer body are respectively connected to the hammer body limiting blocks, and the side walls of the hammer body limiting blocks are respectively provided with hammer body rollers.

[0011] Preferably, the hammer assembly includes a first hammer and a second hammer; the first hammer is located above the second hammer and is connected via a hammer connecting bolt and nut set.

[0012] Preferably, a first hammer limit block is provided on the first hammer, which is used to cooperate with the arc-shaped baffle at the bottom of the outer frame body for limiting position.

[0013] Preferably, the lifting claw includes a first grab hook and a second grab hook; the first grab hook and the second grab hook are rotatably connected to the central axis of the lifting claw, the central axis of the lifting claw is connected to a connecting wire rope, the upper end of the connecting wire rope is connected to a lifting ring, the upper end of the lifting ring is connected to a lifting wire rope, and the lifting wire rope is connected to the lifting device.

[0014] Preferably, the lower end of the outer frame body is connected with an outer frame leg device.

[0015] Preferably, the hammer limit block is located in the vertical slide rail groove of the outer frame body, and the hammer roller is slidably connected to the side wall of the vertical slide rail groove of the outer frame body.

[0016] Preferably, both ends of the central axis of the lifting claw are respectively connected to the central axis rollers of the lifting claw, and the central axis rollers of the lifting claw are slidably connected in the vertical slide rail grooves of the outer frame body.

[0017] The beneficial effects of the present invention are as follows: the underwater rock hammer can accurately and repeatedly strike and destroy the same point during the underwater rock drilling process, thereby accelerating the crushing efficiency of high-strength underwater reef rocks; at the same time, the part used to directly strike the underwater reef rocks can be replaced and repaired separately, without affecting the use of the overall rock hammer during the replacement and repair process; the underwater rock hammer is assembled from various parts and components, all of which can be replaced and repaired separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an overall schematic diagram of an underwater rock hammer according to the present invention;

[0019] Figure 2 is a schematic diagram of the outer frame of the present invention;

[0020] Figure 3 is a schematic diagram of a hammer body of the present invention;

[0021] Figure 4 is a schematic diagram of a hammer assembly of the present invention;

[0022] Figure 5 It is a schematic diagram of the lifting claw of the present invention.

[0023] In the figure: 100, outer frame; 110, outer frame body; 111, outer frame body vertical slide rail groove; 112, waist hoops around the outer frame body; 113, arc-shaped baffle at the bottom of the outer frame body; 120, outer frame top limit device; 121, outer frame top wedge device; 122, outer frame top limit frame; 123, outer frame bolt and nut group; 130, outer frame leg device; 200, hammer; 210, hammer body limit block; 211, hammer body roller ; 220, hammer body lifting ear; 300, hammer head assembly; 310, first hammer head; 311, first hammer head limit block; 312, first hammer head pressure relief groove; 320, second hammer head; 321, hammer head connecting bolt and nut group; 400, lifting claw; 410, first grab hook; 420, second grab hook; 430, lifting claw center axis; 431, lifting claw center axis roller; 440, connecting wire rope; 450, lifting ring; 460, lifting wire rope. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-5 As shown, an underwater rock hammer includes an outer frame 100, a hammer body 200, a hammer head assembly 300, a lifting claw 400 and a lifting device; the hammer head assembly 300 is arranged at the lower end of the outer frame 100, the hammer body 200 is slidably connected in the outer frame 100, the lifting claw 400 is arranged on the upper part of the outer frame 100 for lifting the hammer body 200, and the lifting claw 400 is connected to the lifting device for providing power.

[0027] like Figure 2 As shown, the external frame 100 includes an external frame body 110, and external frame body vertical slide rail grooves 111 are opened on both sides of the internal part of the external frame body 110; a plurality of external frame body waist hoops 112 are connected to the outside of the external frame body 110 at equal distances; the lower end of the external frame body 110 is connected to an external frame body bottom arc baffle 113; the lower end of the external frame body 110 is connected to an external frame support leg device 130.

[0028] The upper end of the outer frame body 110 is connected to the outer frame top limiting device 120 through the outer frame bolt and nut group 123, and the middle part of the outer frame top limiting device 120 is connected to the outer frame top limiting frame 122; the lower end surface of the outer frame top limiting device 120 is connected to the outer frame top wedge device 121.

[0029] Specifically, the outer frame top limit device 120 is connected to the outer frame body 110 through the outer frame bolt and nut group 123, and the waist hoop 112 around the outer frame body is connected to the outer side of the outer frame body 110. The outer frame leg device 130 is connected to the lower part of the outer frame body 110 through a rotating shaft and can be rotated through the rotating shaft.

[0030] like Figure 3 As shown, the upper end surface of the hammer body 200 is connected to the hammer body lifting ear 220; the two sides of the hammer body 200 are respectively connected to the hammer body limit block 210, and the two side walls of the hammer body limit block 210 are respectively provided with a hammer body roller 211. The hammer body limit block 210 is located in the vertical slide rail groove 111 of the outer frame body, and the hammer body roller 211 is slidably connected to the side wall of the vertical slide rail groove 111 of the outer frame body.

[0031] Specifically, the hammer limit block 210 is used to limit the hammer 200 in the vertical slide rail groove 111 of the outer frame body, so that the hammer 200 can only move along the direction of the vertical slide rail groove 111 of the outer frame body, and the hammer roller 211 is arranged on the hammer limit block. When the hammer 200 moves along the direction of the vertical slide rail groove 111 of the outer frame body, the hammer roller 211 can reduce the friction between the hammer 200 and the vertical slide rail groove 111 of the outer frame body; the hammer lifting ear 220 is wedge-shaped.

[0032] like Figure 4 As shown, the hammer assembly 300 includes a first hammer 310 and a second hammer 320; the first hammer 310 is located above the second hammer 320 and connected by a hammer connecting bolt and nut set 321. A first hammer stop block 311 is provided on the first hammer 310 for cooperating with the arc baffle 113 at the bottom of the outer frame body to limit the position.

[0033] The hammer head connecting bolt and nut group 321 is used to connect the first hammer head 310 and the second hammer head 320. The hammer head 300 can move upward or downward along the arc-shaped baffle plate 113 at the bottom of the outer frame body. When the hammer head 300 moves downward to a certain position along the arc-shaped baffle plate 113 at the bottom of the outer frame body, the first hammer head limit block 311 contacts the waist hoop 112 around the outer frame body, limiting the hammer head 300 from continuing to move downward along the arc-shaped baffle plate 113 at the bottom of the outer frame body.

[0034] The first hammer head 310 is provided with a first hammer head pressure relief groove 312 for eliminating the high pressure caused by the hydraulic cavitation that may occur at the moment of collision between the hammer body 200 and the hammer head 300 .

[0035] like Figure 5As shown, the lifting claw 400 includes a first grab hook 410 and a second grab hook 420; the first grab hook 410 and the second grab hook 420 are rotatably connected to the lifting claw central shaft 430, the lifting claw central shaft 430 is connected to the connecting wire rope 440, the upper end of the connecting wire rope 440 is connected to the lifting ring 450, the upper end of the lifting ring 450 is connected to the lifting wire rope 460, and the lifting wire rope 460 is connected to the lifting device. The two ends of the lifting claw central shaft 430 are respectively connected to the lifting claw central shaft roller 431, and the lifting claw central shaft roller 431 is slidably connected in the vertical slide rail groove 111 of the outer frame body.

[0036] The first grab hook 410 and the second grab hook 420 are connected through the claw center shaft 430, the claw center shaft 430 is connected to the connecting wire rope 440, the connecting wire rope 440 is connected to the lifting ring 450, and the lifting ring 450 is connected to the lifting wire rope 460; the claw 400 grabs the hammer body 200 through the first grab hook 410 and the second grab hook 420, and lifts the hammer body 200, so that the hammer body 200 moves upward inside the outer frame 100; the two ends of the claw center shaft 430 are restricted to the outer frame body The vertical slide groove 111 makes the hanging claw 400 only move upward or downward along the direction of the vertical slide groove 111 of the outer frame body. The central axis rollers 431 of the hanging claw are arranged at both ends of the central axis 430 of the hanging claw, so that when the hanging claw 400 moves upward or downward along the direction of the vertical slide groove 111 of the outer frame body, the friction between the hanging claw 400 and the vertical slide groove 111 of the outer frame body is reduced. The first grab hook 410 and the second grab hook 420 are provided with corresponding grooves at the bottom and the weight of the bottom is relatively large. In the vertical state, under the action of gravity, the first grab hook 410 and the second grab hook 420 are in a closed and meshed state. When the first grab hook 410 and the second grab hook 420 are in contact with the hammer body lifting ear 220, under the combined action of the hammer body lifting ear 220 and gravity, the first grab hook 410 and the second grab hook 420 change from the meshed state to the open state. When the lifting claw 400 moves upward or downward along the direction of the vertical slide rail groove 111 of the outer frame body, the lifting wire rope 460 is always restricted to the top limit of the outer frame. In the positioning device limit frame 122, when the lifting claw 400 moves upward to a certain position along the direction of the vertical slide rail groove 111 of the outer frame body, the first grab hook 410 and the second grab hook 420 contact the wedge device 121 of the outer frame top limiting device, and the first grab hook 410 and the second grab hook 420 change from the meshing state to the open state, and the lifting claw center axis 430 contacts the outer frame top limiting device 120, limiting the lifting claw 400 from continuing to move upward along the direction of the vertical slide rail groove 111 of the outer frame body.

[0037] Step 1: through the action of the first external force, the underwater rock hammer is placed as a whole on the underwater reef point that needs to be continuously struck. The first external force is not removed, so that the underwater rock hammer can maintain vertical stability in the water under the combined action of the first external force, gravity and other external forces. The external frame leg device 130 prevents the underwater rock hammer from being relatively displaced with the underwater reef point in the water. The external frame leg device 130 is connected to the lower part of the external frame body 110 through a rotating shaft and can be rotated through the rotating shaft to ensure that when the underwater reef point that needs to be continuously struck is uneven, the underwater rock hammer can still be relatively displaced with the underwater reef point under the action of the external frame leg device 130;

[0038] Step 2: Through the combined action of the second external force and gravity, the claw 400 moves downward along the direction of the vertical slide rail groove 111 of the outer frame body until the first grab hook 410 and the second grab hook 420 contact the hammer body lifting ear 220. The hammer body lifting ear 220 is wedge-shaped and can push open the first grab hook 410 and the second grab hook 420 which are in a meshing state in a natural state, so that the first grab hook 410 and the second grab hook 420 become an open state.

[0039] Step 3: The claw 400 continues to move downward along the direction of the vertical slide rail groove 111 of the outer frame under the action of gravity until the first grab hook 410 and the second grab hook 420 pass through the hammer body lifting ear 220, and change from the open state to the engaged state under the action of gravity again;

[0040] Step 4: Through the action of the second external force, the lifting claw 400 is lifted upward along the direction of the vertical slide rail groove 111 of the outer frame, and the hammer body lifting ear 220 is grabbed by the first grab hook 410 and the second grab hook 420 in a meshing state, so that the hammer body 200 and the lifting claw 400 are lifted upward together;

[0041] Step 5: The claw 400 is lifted to a certain position, and the wedge-shaped device 121 on the top of the outer frame passes through the square holes at both ends of the central axis 430 of the claw and contacts the first grab hook 410 and the second grab hook 420. The first grab hook 410 and the second grab hook 420 in the meshing state are pushed open by the wedge-shaped device 121 on the top of the outer frame and become an open state. At this time, the hammer body 200 moves downward along the direction of the vertical slide rail groove 111 of the outer frame under the action of gravity until it hits the hammer head 300.

[0042] Step 6: The hammer head 300 generates kinetic energy under the impact of the hammer body 200 and impacts the reef below;

[0043] Step seven, through the combined action of the second external force and gravity, the lifting claw 400 is moved downward along the direction of the vertical slide rail groove 111 of the outer frame body, and steps two to six are repeated until the underwater reef that needs to be continuously impacted is broken.

[0044] The underwater rock hammer can accurately and repeatedly strike and destroy the same point during the underwater rock drilling process, thereby accelerating the crushing efficiency of high-strength underwater reef rocks; at the same time, the part used to directly strike the underwater reef rocks can be replaced and repaired separately, which does not affect the use of the overall rock hammer during the replacement and repair process; the underwater rock hammer is assembled from various parts and components, all of which can be replaced and repaired separately.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An underwater rock hammer, characterized in that: It comprises an outer frame (100), a hammer body (200), a hammer head assembly (300), a lifting claw (400) and a lifting device; The hammer head assembly (300) is arranged at the lower end inside the outer frame (100), the hammer body (200) is slidably connected inside the outer frame (100), the lifting claw (400) is arranged on the upper part of the outer frame (100) and is used to lift the hammer body (200), and the lifting claw (400) is connected to the lifting device to provide power.

2. The underwater rock hammer according to claim 1, characterized in that: The external frame (100) comprises an external frame body (110), and external frame body vertical slide rail grooves (111) are provided on both sides of the internal part of the external frame body (110); a plurality of external frame body waist hoops (112) are connected to the outside of the external frame body (110) at equal distances; and the lower end of the external frame body (110) is connected to an arc-shaped baffle plate (113) at the bottom of the external frame body; The upper end of the outer frame body (110) is connected to the outer frame top limiting device (120) via an outer frame bolt and nut group (123); the middle of the outer frame top limiting device (120) is connected to an outer frame top limiting frame (122); and the lower end surface of the outer frame top limiting device (120) is connected to an outer frame top wedge device (121).

3. The underwater rock hammer according to claim 2, characterized in that: The upper end surface of the hammer body (200) is connected to a hammer body lifting lug (220); both sides of the hammer body (200) are connected to hammer body limiting blocks (210), and hammer body rollers (211) are respectively arranged on the side walls of both sides of the hammer body limiting blocks (210).

4. The underwater rock hammer according to claim 2, characterized in that: The hammer assembly (300) comprises a first hammer (310) and a second hammer (320); the first hammer (310) is located above the second hammer (320) and is connected via a hammer connecting bolt and nut assembly (321).

5. The underwater rock hammer according to claim 4, characterized in that: The first hammer head (310) is provided with a first hammer head limiting block (311) for cooperating with the arc-shaped baffle plate (113) at the bottom of the outer frame body to limit position.

6. The underwater rock hammer according to claim 2, characterized in that: The lifting claw (400) includes a first grab hook (410) and a second grab hook (420); the first grab hook (410) and the second grab hook (420) are rotatably connected to the lifting claw center axis (430), the lifting claw center axis (430) is connected to a connecting wire rope (440), the upper end of the connecting wire rope (440) is connected to a lifting ring (450), the upper end of the lifting ring (450) is connected to a lifting wire rope (460), and the lifting wire rope (460) is connected to the lifting device.

7. The underwater rock hammer according to claim 2, characterized in that: The lower end of the outer frame body (110) is connected to an outer frame leg device (130).

8. The underwater rock hammer according to claim 3, characterized in that: The hammer limit block (210) is located in the vertical slide rail groove (111) of the outer frame body, and the hammer roller (211) is slidably connected to the side wall of the vertical slide rail groove (111) of the outer frame body.

9. The underwater jackhammer according to claim 6, characterized in that: The two ends of the lifting claw central axis (430) are respectively connected to the lifting claw central axis rollers (431), and the lifting claw central axis rollers (431) are slidably connected in the vertical slide rail grooves (111) of the outer frame body.

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