Hydraulic engineering desilting device

Abstract

The utility model relates to the technical field of water conservancy construction, in particular to a water conservancy project desilting device which comprises a mud inlet pipe, a forward and reverse rotation cutting mechanism is arranged on the mud inlet pipe, and the cutting mechanism comprises a driving bevel gear, a first driven bevel gear, a second rotating shaft, a first cutting blade, a second driven bevel gear and a second cutting blade. The driving bevel gear is engaged with a first driven bevel gear and a second driven bevel gear, and the inner ring of the first driven bevel gear is fixedly connected with a second rotating shaft. According to the forward and reverse rotation cutting mechanism, through meshing of a driving bevel gear, a first driven bevel gear and a second driven bevel gear, a first cutting blade on the first driven bevel gear and a second cutting blade on the second driven bevel gear achieve the coaxial forward and reverse rotation effect, and therefore mud of hard soil can be doubly cut and decomposed; and the cutting effect is better than that of a single cutting blade.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy projects, and in particular to a dredging device for water conservancy projects. Background Art

[0002] In water conservancy projects, dredging is a vital task, which is related to the normal operation of water conservancy facilities, the smooth flow of water, and the maintenance of the ecological environment. A dredging device for water conservancy projects introduces background technology to a mud pump. This combination not only improves the dredging efficiency, but also reduces the difficulty and cost of operation. There are many types of dredging devices in water conservancy projects, including manual dredging, mechanical dredging, and underwater robot dredging. A mud pump is a machine that delivers mud or water or other flushing fluids into the borehole during the drilling process. It is mainly driven by a power machine to rotate the pump's crankshaft, and the reciprocating motion of the piston or plunger in the pump cylinder achieves the purpose of pressurizing and circulating the flushing fluid. The mud pump has the characteristics of stable delivery flow, discharge pressure being independent of speed, and strong self-priming ability.

[0003] Through searching, Chinese patent publication number CN212079655U discloses a mud pump for water conservancy project construction, including a mud pump body, a handle threadedly installed on the top of the mud pump body, a power cord inserted into the top of the mud pump body, and a protective cover threadedly installed on one end of the power cord close to the mud pump body.

[0004] Regarding the above-mentioned related technologies, the inventors found the following defects: the cutting blades of the mud pump are often set on both sides of the mud pump, which may cause some harder soil mud to be sucked into the mud pump from the bottom of the mud pump, which often causes the mud pump to be blocked, resulting in shutdown for inspection and maintenance, affecting the construction progress. Utility Model Content

[0005] In order to solve the problems mentioned in the above background technology, the present application provides a dredging device for a water conservancy project.

[0006] This application provides a water conservancy project dredging device, which adopts the following technical solution:

[0007] A desilting device for a water conservancy project includes a mud inlet pipe, on which a forward and reverse cutting mechanism is provided. The cutting mechanism includes a driving bevel gear, a driven bevel gear 1, a rotating shaft 2, a cutting blade 1, a driven bevel gear 2 and a cutting blade 2. The driving bevel gear is meshed with the driven bevel gear 1 and the driven bevel gear 2. The inner ring of the driven bevel gear 1 is fixedly connected to the rotating shaft 2. The cutting blade 1 is installed on the rotating shaft 2. The inner ring of the driven bevel gear 2 is fixedly connected to the rotating shaft 3. See the attached drawings of the specification. Figure 2, the rotating shaft 3 is rotatably connected to the rotating shaft 2. The rotating shaft 3 is drawn in the drawings of the specification but is not marked. The cutting blade 2 is installed on the rotating shaft 3. The inner wall of the mud inlet pipe is equipped with a motor. The rotating end of the motor is fixedly connected to the rotating shaft 1, and the rotating shaft 1 is fixedly connected to the inner ring of the driving bevel gear;

[0008] The motor drives the rotating shaft 1 to rotate, and the rotating shaft 1 drives the driving bevel gear to rotate. The driving bevel gear rotates with the driven bevel gear 1 and the driven bevel gear 2 so that the driven bevel gear 1 and the driven bevel gear 2 are engaged to realize the opposite rotation direction. The driven bevel gear 1 drives the rotating shaft 2 and the cutting blade 1 to rotate in the same direction, and the driven bevel gear 2 drives the rotating shaft 3 and the cutting blade 2 to rotate in the opposite direction, thereby realizing the effect of forward and reverse rotation.

[0009] Optionally, a mud pump is included, wherein the outer circumferential wall of the water inlet end of the mud pump is provided with an external thread, the inner circumferential wall of the mud inlet pipe neck is provided with an internal thread, and the external thread is threadedly connected to the internal thread.

[0010] By aligning the internal thread with the external thread and screwing it in, the mud pump and the mud inlet pipe can be quickly assembled and disassembled, and it is convenient to inspect and replace the parts of the mud inlet pipe.

[0011] Optionally, the circumferential outer wall of the rotating shaft 1 is rotatably connected to the inner ring of the rotating shaft, the outer ring of the rotating shaft is fixedly connected to an "L"-shaped connecting rod, one end of the "L"-shaped connecting rod is fixedly connected to the inner wall of the mud inlet pipe, and the top and four-fifths of the bottom of the rotating shaft 2 are rotatably connected to the center of the fixing frame 1 and the fixing frame 2 respectively, the fixing frame 2 is located between the driven bevel gear 2 and the cutting blade 2, and the fixing frame 1 is located above the driven bevel gear 1;

[0012] When the shaft 1 rotates, the shaft 1 and the inner ring of the shaft rotate to achieve the advantage of reducing wear, while the outer ring of the shaft does not move. At the same time, the shaft and the "L"-shaped connecting rod are used to fix the horizontal position of the active bevel gear;

[0013] The driven bevel gear 1 is rotationally connected to the center circle position of the fixing frame 1 and the fixing frame 2. At the same time, the setting of the fixing frame 1 and the fixing frame 2 is also to fix the vertical position of the driven bevel gear 1, the rotating shaft 2, the cutting blade 1, the driven bevel gear 2 and the cutting blade 2.

[0014] Optionally, a cylinder is mounted on the rotating shaft 1, and a driving bevel gear, a driven bevel gear 1, a driven bevel gear 2, the rotating shaft 1 and the rotating shaft 2 are placed inside the cylinder;

[0015] In order to prevent mud from blocking the rotation of the driving bevel gear, the driven bevel gear 1 and the driven bevel gear 2, the setting of the cylinder can effectively prevent the entry of mud.

[0016] Optionally, the motor and the mud pump are both connected to an external power supply, and the mud pump is located above the mud inlet pipe; a protective box can be provided on the motor to protect the interior of the motor from mud entry.

[0017] In summary, this application has the following beneficial technical effects:

[0018] 1. The forward and reverse cutting mechanism provided in the utility model, through the meshing of the active bevel gear, the driven bevel gear 1 and the driven bevel gear 2, enables the cutting blade 1 on the driven bevel gear 1 and the cutting blade 2 on the driven bevel gear 2 to achieve the effect of coaxial forward and reverse rotation, so that the mud of hard soil can be double-cut and decomposed, and the cutting effect is better than that of a single cutting blade.

[0019] 2. The utility model sets the forward and reverse cutting mechanism below the mud pump, and allows the mud to flow into the forward and reverse cutting mechanism through the cylinder, in order to avoid some mud below the water inlet of the mud pump being directly sucked into the mud pump without being stirred, thereby causing the problem of clogging the mud pump and causing shutdown for inspection and maintenance, which affects the construction progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the forward and reverse cutting machine in the embodiment of the present application;

[0021] Figure 2 This is a schematic diagram of the structure of the splitting of the rotating shaft 2, the cutting blade 1 and the cutting blade 2 in the embodiment of the present application;

[0022] Figure 3 This is a schematic structural diagram of a forward and reverse cutting machine combined with a cylinder in an embodiment of the present application;

[0023] Figure 4 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of the structure of the mud pump and the mud inlet pipe separated in the embodiment of the present application.

[0025] Figure numerals: 1, mud pump; 100, external thread; 2, mud inlet pipe; 20, internal thread; 3, motor; 4, rotating shaft 1; 5, driving bevel gear; 6, driven bevel gear 1; 7, rotating shaft 2; 8, cutting blade 1; 9, driven bevel gear 2; 10, cutting blade 2; 11, fixing frame 1; 12, fixing frame 2; 13, cylinder; 14, rotating shaft; 15, "L"-shaped connecting rod. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 This application is described in further detail.

[0027] The embodiment of the present application discloses a dredging device for a water conservancy project.

[0028] like Figure 1-2 As shown, a desilting device for a water conservancy project includes a mud inlet pipe 2, on which a forward and reverse cutting mechanism is provided. The cutting mechanism includes a driving bevel gear 5, a driven bevel gear 1 6, a rotating shaft 2 7, a cutting blade 1 8, a driven bevel gear 2 9 and a cutting blade 2 10. The driving bevel gear 5 is engaged with the driven bevel gear 1 6 and the driven bevel gear 2 9. The inner ring of the driven bevel gear 1 6 is fixedly connected to the rotating shaft 2 7. The cutting blade 1 8 is installed on the rotating shaft 2 7. The inner ring of the driven bevel gear 2 9 is fixedly connected to the rotating shaft 3. See the attached drawings of the specification. Figure 2 , the rotating shaft three is connected to the rotating shaft two 7, the rotating shaft three is drawn in the drawings of the specification, but it is not marked. The cutting blade two 10 is installed on the rotating shaft three, and the inner wall of the mud inlet pipe 2 is installed with a motor 3. The rotating end of the motor 3 is fixedly connected to the rotating shaft one 4, and the rotating shaft one 4 is fixedly connected to the inner ring of the active bevel gear 5. The motor 3 drives the rotating shaft one 4 to rotate, and the rotating shaft one 4 drives the active bevel gear 5 to rotate. The active bevel gear 5 rotates with the driven bevel gear one 6 and the driven bevel gear two 9 so that the driven bevel gear one 6 and the driven bevel gear two 9 are engaged to realize the opposite rotation direction. The driven bevel gear one 6 drives the rotating shaft two 7 and the cutting blade one 8 to rotate in the same direction, and the driven bevel gear two 9 drives the rotating shaft three and the cutting blade two 10 to rotate in opposite directions, thereby realizing the effect of positive and negative rotation.

[0029] See also Figure 5 , and includes a mud pump 1. An external thread 100 is provided on the circumferential outer wall of the water inlet end of the mud pump 1, and an internal thread 20 is provided on the circumferential inner wall of the neck of the mud inlet pipe 2. The external thread 100 is threadedly connected with the internal thread 20. By aligning the internal thread 20 with the external thread 100 and screwing it in, the mud pump 1 and the mud inlet pipe 2 can be quickly assembled and disassembled, and it is convenient to inspect and replace the parts of the mud inlet pipe 2.

[0030] See also Figure 1The outer circumference of the rotating shaft 4 is rotatably connected to the inner ring of the rotating shaft 14. The outer ring of the rotating shaft 14 is fixedly connected to an "L"-shaped connecting rod 15. One end of the "L"-shaped connecting rod 15 is fixedly connected to the inner wall of the mud inlet pipe 2. The top and four-fifths of the bottom of the rotating shaft 2 7 are rotatably connected to the center of the fixing frame 11 and the fixing frame 2 12 respectively. The fixing frame 2 12 is located between the driven bevel gear 2 9 and the cutting blade 2 10. The fixing frame 11 is located above the driven bevel gear 1 6. When the rotating shaft 1 4 rotates, The inner ring of the rotating shaft 4 and the rotating shaft 14 rotate to achieve the advantage of reducing wear, while the outer ring of the rotating shaft 14 does not move. At the same time, the rotating shaft 14 and the "L"-shaped connecting rod 15 are used to fix the horizontal position of the driving bevel gear 5, and the driven bevel gear 1 6 is rotatably connected to the center circle position of the fixing frame 1 11 and the fixing frame 2 12. At the same time, the setting of the fixing frame 1 11 and the fixing frame 2 12 is also to fix the vertical position of the driven bevel gear 1 6, the rotating shaft 2 7, the cutting blade 1 8, the driven bevel gear 2 9 and the cutting blade 2 10.

[0031] See also Figure 3 A cylinder 13 is installed on the rotating shaft 4, and the driving bevel gear 5, the driven bevel gear 1 6, the driven bevel gear 2 9, the rotating shaft 4 and the rotating shaft 2 7 are placed inside the cylinder 13. In order to prevent the mud from blocking the rotation of the driving bevel gear 5, the driven bevel gear 1 6 and the driven bevel gear 2 9, the setting of the cylinder 13 can effectively prevent the entry of mud.

[0032] See also Figure 4 The motor 3 and the mud pump 1 are both connected to an external power supply. The mud pump 1 is located above the mud inlet pipe 2. A protective box can be provided on the motor 3 to protect the interior of the motor 3 from mud entry.

[0033] The implementation principle of a water conservancy project desilting device according to the embodiment of the present application is as follows: Please refer to Figures 1-5 of the accompanying drawings:

[0034] The device is shown in the accompanying drawings of the specification. Figure 4After the state shown is vertically placed into the mud, turn on the switch of the motor 3 and the mud pump 1 to make it work. The rotation of the motor 3 will drive the shaft 1 4 to rotate, and the shaft 1 4 will drive the active bevel gear 5 to rotate. The active bevel gear 5 rotates with the driven bevel gear 1 6 and the driven bevel gear 2 9 so that the driven bevel gear 1 6 and the driven bevel gear 2 9 are engaged to realize the opposite rotation direction. The driven bevel gear 1 6 drives the shaft 2 7 and the cutting blade 1 8 to rotate in the same direction, and the driven bevel gear 2 9 drives the shaft 3 and the cutting blade 2 10 to rotate in the opposite direction. At the same time, the cylinder 13 makes The mud flows into the forward and reverse rotating cutting mechanism, and the forward and reverse rotating cutting blade 1 8 and cutting blade 2 10 perform double cutting on the incoming mud, so that the hard soil mud can be double-cut and decomposed, and the cutting effect is better than that of a single cutting blade; at the same time, the forward and reverse cutting mechanism is installed below the mud pump 1, and is not installed on both sides of the mud pump 1, mainly to avoid some mud below the water inlet of the mud pump 1 being directly sucked into the mud pump 1 without being stirred, thereby causing the problem of clogging the mud pump 1.

[0035] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A dredging device for a water conservancy project, characterized in that: The invention comprises a mud inlet pipe (2), wherein the mud inlet pipe (2) is provided with a forward and reverse cutting mechanism, wherein the cutting mechanism comprises an active bevel gear (5), a driven bevel gear 1 (6), a rotating shaft 2 (7), a cutting blade 1 (8), a driven bevel gear 2 (9) and a cutting blade 2 (10), wherein the active bevel gear (5) is meshed with the driven bevel gear 1 (6) and the driven bevel gear 2 (9), wherein the inner ring of the driven bevel gear 1 (6) is fixedly connected to the rotating shaft 2 (7), wherein the cutting blade 1 (8) is mounted on the rotating shaft 2 (7), wherein the inner ring of the driven bevel gear 2 (9) is fixedly connected to the rotating shaft 3, wherein the cutting blade 2 (10) is mounted on the rotating shaft 3.

2. A water conservancy project dredging device according to claim 1, characterized in that: The invention also comprises a mud pump (1), wherein an external thread (100) is provided on the circumferential outer wall of the water inlet end of the mud pump (1), an internal thread (20) is provided on the circumferential inner wall of the neck of the mud inlet pipe (2), and the external thread (100) is threadedly connected to the internal thread (20).

3. A water conservancy project dredging device according to claim 1, characterized in that: A motor (3) is installed on the inner wall of the mud inlet pipe (2), and the rotating end of the motor (3) is fixedly connected to a rotating shaft (4), and the rotating shaft (4) is fixedly connected to the inner ring of the driving bevel gear (5).

4. A water conservancy project dredging device according to claim 3, characterized in that: The circumferential outer wall of the rotating shaft (4) is rotatably connected to the inner ring of the rotating shaft (14), and the outer ring of the rotating shaft (14) is fixedly connected to an "L"-shaped connecting rod (15), and one end of the "L"-shaped connecting rod (15) is fixedly connected to the inner wall of the mud inlet pipe (2).

5. The water conservancy project dredging device according to claim 1, characterized in that: The top and four-fifths of the bottom of the rotating shaft 2 (7) are respectively rotatably connected to the center of the fixed frame 1 (11) and the fixed frame 2 (12), the fixed frame 2 (12) is located between the driven bevel gear 2 (9) and the cutting blade 2 (10), and the fixed frame 1 (11) is located above the driven bevel gear 1 (6).

6. The hydraulic engineering desilting device according to claim 1, characterized in that: A cylinder (13) is installed on the rotating shaft (4), and a driving bevel gear (5), a driven bevel gear (6), a driven bevel gear (9), the rotating shaft (4) and the rotating shaft (7) are placed inside the cylinder (13).

7. The water conservancy project dredging device according to claim 3, characterized in that: The motor (3) and the mud pump (1) are both connected to an external power supply, and the mud pump (1) is located above the mud inlet pipe (2).

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