Heavy hammer for tamping underwater riprap

Abstract

The utility model relates to a heavy hammer for tamping underwater riprap, which belongs to the technical field of hydraulic engineering and comprises a heavy hammer body, a moving mechanism is arranged in the heavy hammer body, a tamping plate is arranged on the moving mechanism, two groups of water inlet holes are arranged on the tamping plate, a sealing mechanism is arranged on the heavy hammer body, and the water inlet holes are communicated with the sealing mechanism. Two groups of drainage holes are formed in the heavy hammer body, and a storage battery is arranged in the heavy hammer body; the moving mechanism comprises a first mounting groove formed in the counter weight body. According to the heavy hammer for tamping the underwater riprap, the moving mechanism is arranged in the heavy hammer body and can drive the tamping plate to move, so that the heavy hammer can have the impact strength and the capability of reducing the flowing water resistance at the same time, and the problem that the heavy hammer is not enough for tamping due to the fact that holes formed in the heavy hammer are too large or too large is solved; the sealing mechanism is arranged on the heavy punch body, the drainage hole can be closed before the heavy punch is used for tamping, and therefore tamping of the heavy punch is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a heavy hammer used for compacting underwater riprap. Background Art

[0002] During the construction of port hydraulic structures, some large gravity docks, revetments and other gravity structures often use underwater riprap foundation beds. As a form of foundation structure, underwater riprap foundation beds have the advantages of large bearing capacity, anti-slip, economy, and good durability. Therefore, they have become one of the preferred structural forms for underwater foundation projects. In order to ensure that the underwater riprap foundation bed has sufficient foundation bearing capacity and anti-slip stability, the foundation bed must be compacted. At present, the main compaction methods used in domestic and foreign projects are heavy hammer compaction method and explosive compaction method. The heavy hammer compaction method uses a lifting device to lift a heavy hammer, and uses the impact energy generated by the free fall of the heavy hammer to compact the foundation bed. The heavy hammer compaction method is flexible and maneuverable in construction, has little impact on the seismic effect of surrounding buildings, and has little construction interference.

[0003] For example, a Chinese patent (CN102877453B) discloses an underwater riprap bed compaction device, including a rammer and a diversion assembly. A diversion hole is provided in the center of the rammer vertically penetrating the top and bottom surfaces of the rammer. The diversion assembly includes a propeller, a motor and a watertight compartment. The propeller is arranged in the diversion hole, and the motor is arranged in the watertight compartment connected to the rammer. A shaft connected to the propeller is provided on the motor. Compared with the prior art, the invention adds a diversion assembly to the rammer, and the technical implementation is simple, the cost is low, and the compaction effect is good.

[0004] The above scheme still has the following technical deficiencies: a guide hole is provided in the center of the rammer which vertically penetrates the top and bottom surfaces of the rammer, and the propeller is arranged in the guide hole. This will reduce the strength of the rammer itself, and the rammer itself will be easily damaged during impact. At the same time, the impact force carried by the water flow during impact will easily damage the propeller. Based on this, a heavy hammer for compacting underwater riprap is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a heavy hammer for compacting underwater riprap, which has the advantages of being able to reduce water flow resistance while ensuring the strength of the heavy hammer itself, thereby solving the problem that the heavy hammer has too low strength while reducing water flow resistance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy hammer for compacting underwater riprap, comprising a heavy hammer body, a moving mechanism is provided inside the heavy hammer body, a compacting plate is provided on the moving mechanism, two groups of water inlet holes are opened on the compacting plate, a closing mechanism is provided on the heavy hammer body, two groups of drainage holes are provided on the heavy hammer body, and a storage battery is provided inside the heavy hammer body;

[0007] The moving mechanism includes a first mounting groove opened inside the weight body, a first motor is fixed on the right side of the first mounting groove, a screw is fixed to the output shaft of the first motor, a sleeve is threadedly connected to the outer surface of the screw, a connecting rod is fixed to the bottom end of the sleeve, a rubber pad is fixed to the top end of the sleeve, a circular groove is opened on the left side of the first mounting groove, and a first sealing ring is fixed to the inner side of the circular groove.

[0008] Furthermore, the closing mechanism includes two groups of second mounting grooves opened on the weight body, a second motor on the left side of the second mounting groove, the output shaft of the second motor is fixed with a rotating shaft, and a plurality of closing plates are fixed to the outer surface of the rotating shaft. The closing mechanism also includes a first placement groove opened inside the weight body, a bearing seat is fixed to the right side of the first placement groove, and the closing mechanism also includes a second placement groove opened inside the weight body, and second sealing rings are fixed inside the first placement groove and the second placement groove.

[0009] Furthermore, a slide groove is provided at the bottom end of the circular groove, the connecting rod slides in the slide groove, and the bottom end of the connecting rod is fixed to the top end of the tamping plate.

[0010] Furthermore, the top end of the sleeve abuts against the top side of the circular groove, and the shapes and positions of the water inlet and the drainage holes correspond to each other.

[0011] Furthermore, two groups of circular holes are opened inside the weight body, the rotating shaft rotates in the circular holes, and the drainage hole is connected to the circular holes.

[0012] Furthermore, the inner wall of the first sealing ring is in contact with the outer surface of the screw, and the inner wall of the second sealing ring is in contact with the outer surface of the rotating shaft.

[0013] Furthermore, the plurality of closing plates are located in corresponding drainage holes, and the rotating shaft rotates in the bearing seat.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The heavy hammer for compacting underwater riprap has a moving mechanism inside the heavy hammer body, and the moving mechanism can drive the compacting plate to move, so that the heavy hammer can have both impact strength and the ability to reduce water flow resistance, thereby solving the problem that the heavy hammer is insufficient for compaction due to too large or too many holes opened on the heavy hammer. By providing a closing mechanism on the heavy hammer body, the drainage hole can be closed before compaction with the heavy hammer, which is beneficial to compaction with the heavy hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the mobile mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the structural tamping plate of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the closing mechanism of the utility model.

[0020] In the figure: 1 a weight body, 200 a moving mechanism, 201 a first mounting groove, 202 a first motor, 203 a screw, 204 a sleeve, 205 a connecting rod, 206 a rubber pad, 207 a circular groove, 208 a first sealing ring, 3 a tamping plate, 4 a water inlet hole, 500 a closing mechanism, 501 a second mounting groove, 502 a second motor, 503 a rotating shaft, 504 a closing plate, 505 a first placement groove, 506 a bearing seat, 507 a second placement groove, 508 a second sealing ring, 6 a drainage hole, and 7 a battery. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 In this embodiment, a heavy hammer for compacting underwater riprap includes a heavy hammer body 1, a moving mechanism 200 is provided inside the heavy hammer body 1, a compacting plate 3 is provided on the moving mechanism 200, two groups of water inlet holes 4 are opened on the compacting plate 3, a closing mechanism 500 is provided on the heavy hammer body 1, two groups of drainage holes 6 are provided on the heavy hammer body 1, the shapes and positions of the water inlet holes 4 and the drainage holes 6 correspond to each other, and a battery 7 is provided inside the heavy hammer body 1.

[0023] The moving mechanism 200 in this embodiment is used to drive the tamping plate 3 to move left and right, the tamping plate 3 is used to tamp the riprap, the water inlet hole 4 and the drainage hole 6 are used to allow water to flow through, thereby reducing the resistance of the heavy hammer body 1 when it falls, the closing mechanism 500 is used to close the heavy hammer body 1, and the battery 7 is used to power the moving mechanism 200 and the closing mechanism 500.

[0024] It should be noted that the top side of the tamping plate 3 is in contact with the bottom side of the weight body 1, and the tamping plate 3 can be moved to misalign the water inlet hole 4 and the drainage hole 6, thereby preventing water from flowing through the drainage hole 6 when the weight body 1 and the tamping plate 3 hit the riprap.

[0025] See also Figure 1-3 In order to facilitate the left and right movement of the tamping plate 3, the moving mechanism 200 in this embodiment includes a first mounting groove 201 opened inside the heavy hammer body 1, and a first motor 202 is fixed to the right side of the first mounting groove 201, and a screw 203 is fixed to the output shaft of the first motor 202. The outer surface of the screw 203 is threadedly connected with a sleeve 204, and a connecting rod 205 is fixed to the bottom end of the sleeve 204. The bottom end of the connecting rod 205 is fixed to the top of the tamping plate 3, and a rubber pad 206 is fixed to the top of the sleeve 204. A circular groove 207 is opened on the left side of the first mounting groove 201, and a sliding groove is opened at the bottom end of the circular groove 207. The connecting rod 205 slides in the sliding groove, and the top of the sleeve 204 abuts against the top side of the circular groove 207. A first sealing ring 208 is fixed to the inner side of the circular groove 207, and the inner wall of the first sealing ring 208 fits the outer surface of the screw 203.

[0026] The moving mechanism 200 in this embodiment can drive the screw 203 to rotate through the first motor 202. The screw 203 is used to drive the sleeve 204 to move left and right. The sleeve 204 is used to drive the connecting rod 205 and the tamping plate 3 to move. The first sealing ring 208 is used to prevent water from entering the first installation groove 201.

[0027] It should be noted that the first installation groove 201 is used to facilitate the installation of the first motor 202 , and the rubber pad 206 is used to buffer the impact force received by the sleeve 204 .

[0028] See also Figure 1 and Figure 4 In order to facilitate the sealing of the drainage hole 6, the closing mechanism 500 in this embodiment includes two groups of second mounting grooves 501 opened on the heavy hammer body 1, a second motor 502 on the left side of the second mounting groove 501, and a rotating shaft 503 is fixed to the output shaft of the second motor 502. Two groups of circular holes are opened inside the heavy hammer body 1, and the rotating shaft 503 rotates in the circular holes. The drainage hole 6 is connected to the circular holes. A plurality of closing plates 504 are fixed on the outer surface of the rotating shaft 503, and the plurality of closing plates 504 are located in the corresponding drainage holes 6. The closing mechanism 500 also includes a first placement groove 505 opened inside the heavy hammer body 1, and a bearing seat 506 is fixed on the right side of the first placement groove 505. The rotating shaft 503 rotates in the bearing seat 506. The closing mechanism 500 also includes a second placement groove 507 opened inside the heavy hammer body 1. Second sealing rings 508 are fixed inside the first placement groove 505 and the second placement groove 507, and the inner wall of the second sealing ring 508 fits with the outer surface of the rotating shaft 503.

[0029] The closing mechanism 500 in this embodiment can drive the rotating shaft 503 to rotate through the second motor 502 , and the rotating shaft 503 can drive the closing plate 504 to rotate. The closing plate 504 is used to close the drainage hole 6 , and the bearing seat 506 is used to support the rotating shaft 503 .

[0030] It should be noted that the second sealing ring 508 on the left side can prevent water from entering the second installation groove 501 , and the second sealing ring 508 on the right side can prevent water from entering the second placement groove 507 .

[0031] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of batteries is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0032] The working principle of the above embodiment is:

[0033] When the weight body 1 is falling, the closing plate 504 is parallel to the drainage hole 6, and the drainage hole 6 is connected to the water inlet hole 4, so that the water flow can smoothly pass through the weight body 1, reducing the resistance received by the weight body 1. When the weight body 1 is about to hit the riprap, the first motor 202 is started, and the output shaft of the first motor 202 drives the screw 203 to rotate, and the screw 203 drives the sleeve 204 to move to the left, and the sleeve 204 drives the connecting rod 205 and the tamping plate 3 to move together, and the drainage hole 6 and the water inlet hole 4 are misaligned, so that the water flow can no longer enter the drainage hole 6. Then the first motor 202 is turned off, and the second motor 502 is started. The output shaft of the second motor 502 drives the rotating shaft 503 to rotate, and the rotating shaft 503 drives the closing plate 504 to rotate, and the closing plate 504 closes the drainage hole 6. The second motor 502 is turned off, and the tamping plate 3 is used to tamp the riprap.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A weight hammer for compacting underwater riprap, comprising a weight hammer body (1), characterized in that: A moving mechanism (200) is provided inside the weight body (1), a tamping plate (3) is provided on the moving mechanism (200), two groups of water inlet holes (4) are opened on the tamping plate (3), a closing mechanism (500) is provided on the weight body (1), two groups of water discharge holes (6) are provided on the weight body (1), and a storage battery (7) is provided inside the weight body (1); The moving mechanism (200) comprises a first mounting groove (201) provided inside the weight body (1); a first motor (202) is fixed on the right side of the first mounting groove (201); a screw (203) is fixed to the output shaft of the first motor (202); a sleeve (204) is threadedly connected to the outer surface of the screw (203); a connecting rod (205) is fixed to the bottom end of the sleeve (204); a rubber pad (206) is fixed to the top end of the sleeve (204); a circular groove (207) is provided on the left side of the first mounting groove (201); a first sealing ring (208) is fixed to the inner side of the circular groove (207).

2. A heavy hammer for compacting underwater riprap according to claim 1, characterized in that: The sealing mechanism (500) comprises two groups of second mounting grooves (501) provided on the weight body (1), a second motor (502) on the left side of the second mounting groove (501), a rotating shaft (503) being fixed to the output shaft of the second motor (502), and a plurality of sealing plates (504) being fixed to the outer surface of the rotating shaft (503), the sealing mechanism (500) further comprises a first placement groove (505) provided inside the weight body (1), a bearing seat (506) being fixed to the right side of the first placement groove (505), the sealing mechanism (500) further comprises a second placement groove (507) provided inside the weight body (1), and a second sealing ring (508) being fixed inside both the first placement groove (505) and the second placement groove (507).

3. A heavy hammer for compacting underwater riprap according to claim 1, characterized in that: The bottom end of the circular groove (207) is provided with a slide groove, and the connecting rod (205) slides in the slide groove. The bottom end of the connecting rod (205) is fixed to the top end of the tamping plate (3).

4. A heavy hammer for compacting underwater riprap according to claim 1, characterized in that: The top end of the sleeve (204) abuts against the top side of the circular groove (207), and the shapes and positions of the water inlet hole (4) and the water outlet hole (6) correspond to each other.

5. A heavy hammer for compacting underwater riprap according to claim 2, characterized in that: Two groups of circular holes are opened inside the weight body (1), the rotating shaft (503) rotates in the circular holes, and the drainage hole (6) is connected to the circular holes.

6. A heavy hammer for compacting underwater riprap according to claim 2, characterized in that: The inner wall of the first sealing ring (208) fits with the outer surface of the screw (203), and the inner wall of the second sealing ring (508) fits with the outer surface of the rotating shaft (503).

7. A heavy hammer for compacting underwater riprap according to claim 2, characterized in that: The plurality of closing plates (504) are located in corresponding drainage holes (6), and the rotating shaft (503) rotates in the bearing seat (506).

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